Release 6.2.6

Avoid narrowing large section sizes to int when choosing the minimum size and computing relative heights. Handle a zero minimum before dividing.

.github/workflows/ci.yml

@@ -1,8 +1,8 @@
 name: iaito CI
 
 env:
-  R2V: 6.2.2
-  R2GHIDRA_VERSION: 6.2.2
+  R2V: 6.2.6
+  R2GHIDRA_VERSION: 6.2.6
   QT_MAC_INSTALL_VERSION: 6.11.*
   QT_WIN_INSTALL_VERSION: 6.10.*
 
@@ -16,7 +16,7 @@ on:
 
 jobs:
   acr-linux-r2git:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v7
       with:
@@ -35,6 +35,8 @@ jobs:
       run: |
         ./configure --prefix=/usr
         make -j4
+    - name: command-line checks
+      run: python3 tests/commandline/test_commandline.py build/iaito
     - name: packaging
       run: make -j -C dist/debian
   indent-check:
@@ -42,24 +44,14 @@ jobs:
     continue-on-error: true
     steps:
     - uses: actions/checkout@v7
-    - uses: actions/setup-python@v7
       with:
-        python-version: 3.12.x
-    - name: Install indent-check dependencies
-      run: |
-        sudo apt-get update
-        sudo apt-get install -y libgraphviz-dev mesa-common-dev ninja-build libqt5svg5-dev qttools5-dev qttools5-dev-tools qtbase5-dev qtchooser qt5-qmake qtbase5-dev-tools
-    - name: install r2
-      run: |
-        wget -q https://github.com/radareorg/radare2/releases/download/${{env.R2V}}/radare2_${{env.R2V}}_amd64.deb
-        wget -q https://github.com/radareorg/radare2/releases/download/${{env.R2V}}/radare2-dev_${{env.R2V}}_amd64.deb
-        sudo dpkg -i *.deb
-    - name: configure iaito
-      run: ./configure --prefix=/usr
+        persist-credentials: false
+    - name: install clang-format
+      run: sudo apt-get update && sudo apt-get install -y --no-install-recommends clang-format-20
     - name: make indent
-      run: make indent && git diff --exit-code
+      run: make indent-host && git diff --exit-code
   acr-linux:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v7
       with:
@@ -82,6 +74,8 @@ jobs:
       run: ./configure --prefix=/usr --with-qmake6
     - name: build iaito
       run: make -j4
+    - name: command-line checks
+      run: python3 tests/commandline/test_commandline.py build/iaito
     - name: packaging
       run: make -C dist/debian
     - uses: actions/upload-artifact@v7
@@ -89,7 +83,7 @@ jobs:
         name: iaito-amd64.deb
         path: dist/debian/*/*.deb
   acr-linux-nodebugger:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v7
       with:
@@ -112,6 +106,8 @@ jobs:
       run: ./configure --prefix=/usr --with-qmake6 --without-debugger
     - name: build iaito
       run: make -j4
+    - name: command-line checks
+      run: python3 tests/commandline/test_commandline.py build/iaito
   acr-macos:
     strategy:
       fail-fast: false
@@ -196,46 +192,25 @@ jobs:
         name: iaito-macos-${{ matrix.arch }}
         path: dist/macos/iaito.zip
   meson:
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-22.04]
-        python-version: [3.12.x]
-        system-deps: [true]
-        cc-override: [default]
-        cxx-override: [default]
-      # Prevent one job from pausing the rest
-      fail-fast: false
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v7
       with:
         submodules: false # 'recursive' 'true' or 'false'
         persist-credentials: false
     - name: apt dependencies
-      if: contains(matrix.os, 'ubuntu')
       run: |
         sudo apt-get update
         sudo apt-get install -y libgraphviz-dev mesa-common-dev ninja-build libqt5svg5-dev qttools5-dev qttools5-dev-tools qtbase5-dev qtchooser qt5-qmake qtbase5-dev-tools
     - name: install r2
-      run: git clone --depth=1 https://github.com/radareorg/radare2 r2git && CFLAGS=-O0 r2git/sys/install.sh
+      run: |
+        wget -q https://github.com/radareorg/radare2/releases/download/${{env.R2V}}/radare2_${{env.R2V}}_amd64.deb
+        wget -q https://github.com/radareorg/radare2/releases/download/${{env.R2V}}/radare2-dev_${{env.R2V}}_amd64.deb
+        sudo dpkg -i *.deb
     - uses: actions/setup-python@v7
       with:
-        python-version: ${{ matrix.python-version }}
-    - name: install dependencies
-      if: contains(matrix.os, 'macos')
-      run: pip3 install meson ninja
-    - name: install Qt
-      if: contains(matrix.os, 'macos')
-      uses: jurplel/install-qt-action@v4
-      with:
-        version: ${{env.QT_MAC_INSTALL_VERSION}}
-    - name: macos build
-      if: contains(matrix.os, 'macos')
-      run: |
-        meson setup -Dwith_qt6=true build src
-        ninja -C build -j4
+        python-version: 3.12.x
     - name: meson+ninja ubuntu
-      if: contains(matrix.os, 'ubuntu')
       run: |
         pip install meson
         meson setup build src
@@ -264,6 +239,8 @@ jobs:
         curl -L -o r2.zip https://github.com/radareorg/radare2/releases/download/${{env.R2V}}/radare2-${{env.R2V}}-w64.zip
         7z x r2.zip
         mv radare2-${{env.R2V}}-w64 radare2
+        # XXX workaround for r2-6.2.4 headers not being msvc c++ friendly (fixed in r2 master)
+        sed -i 's/(RStrs) { NULL, NULL }/r_strs_new (NULL, NULL)/' radare2/include/libr/r_cmd.h
         echo "%CD%\radare2\bin" >> $GITHUB_PATH
     - name: configure
       shell: cmd
@@ -294,7 +271,7 @@ jobs:
       - acr-linux
       - acr-macos
       - w64-meson
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     steps:
       - name: Checkout code
         uses: actions/checkout@v7
@@ -414,7 +391,7 @@ jobs:
     needs:
       - macos-sign
       - check_release
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     steps:
       - name: Checkout code
         uses: actions/checkout@v7

.github/workflows/semgrep.yml

@@ -13,7 +13,7 @@ name: Semgrep
 jobs:
   semgrep:
     name: Scan
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     env:
       SEMGREP_APP_TOKEN: ${{ secrets.SEMGREP_APP_TOKEN }}
     container:

.gitignore

@@ -3,6 +3,9 @@ AStyle*
 ./config.mk
 config.mk
 
+# Generated configuration header (qmake / Meson)
+IaitoConfig.h
+
 # OSX files
 *.DS_Store
 .AppleDouble

Makefile

@@ -1,4 +1,4 @@
-include config.mk
+-include config.mk
 
 ifeq ($(shell uname),Darwin)
 BIN=build/iaito.app/Contents/MacOS/iaito
@@ -128,7 +128,11 @@ endif
 user-uninstall:
 	$(MAKE) uninstall DESTDIR=/ PREFIX=${HOME}/.local MANDIR=${HOME}/.local/share/man
 
+ifneq ($(shell uname),Darwin)
 run: install-desktop-user
+endif
+
+run:
 	rarun2 libpath=$(shell r2 -H R2_LIBDIR) program=$(BIN)
 
 install-desktop-user:

README.md

@@ -83,6 +83,9 @@ make
 make run
 ```
 
+On macOS, `make run` launches the app from `build/iaito.app` without installing it.
+Registering the `iaito://` URI handler is optional; see [deep links](doc/deeplinks.md#macos).
+
 To install the app in your home:
 
 ```sh

configure

@@ -129,12 +129,12 @@ done
 : ${INSTALL_PROGRAM_STRIP:=${INSTALL} -m 755 -s}
 : ${INSTALL_MAN:=${INSTALL} -m 444}
 : ${INSTALL_LIB:=${INSTALL} -m 755 -c}
- PKGNAME='iaito' ; VERSION='6.2.2' ; VERSION_MAJOR=6; VERSION_MINOR=2; VERSION_PATCH=2; VERSION_NUMBER=60202; CONTACT_MAIL="[email protected]" ; CONTACT_NAME="pancake" ; CONTACT="pancake <[email protected]>" ;
+ PKGNAME='iaito' ; VERSION='6.2.6' ; VERSION_MAJOR=6; VERSION_MINOR=2; VERSION_PATCH=6; VERSION_NUMBER=60206; CONTACT_MAIL="[email protected]" ; CONTACT_NAME="pancake" ; CONTACT="pancake <[email protected]>" ;
 }
 
 show_usage() {
 cat <<EOF2
-'configure' configures iaito-6.2.2 to adapt to many kinds of systems.
+'configure' configures iaito-6.2.6 to adapt to many kinds of systems.
 
 Usage: ./configure [OPTION]... [VAR=VALUE]...
 
@@ -212,10 +212,10 @@ ocho() {
 
 show_version() {
 if [ "$QUIET" = 1 ]; then
-	echo "6.2.2"
+	echo "6.2.6"
 	exit 0
 fi
-echo "iaito-6.2.2 configuration script done with acr v2.2.8.
+echo "iaito-6.2.6 configuration script done with acr v2.2.8.
 The 'Free Software Foundation' message is only for autodetection.
 Originally written by pancake <nopcode.org>."
 exit 0
@@ -244,7 +244,7 @@ case $flag in
 	show_version ; ;;
 -r|--r|--report)
 echo "PKGNAME:     iaito"
-echo "VERSION:     6.2.2"
+echo "VERSION:     6.2.6"
 echo "AUTHOR:      pancake"
 echo "EMAIL:       [email protected]"
 echo "LANGS:       c++"

configure.acr

@@ -1,5 +1,5 @@
 PKGNAME iaito
-VERSION 6.2.2
+VERSION 6.2.6
 CONTACT pancake ; [email protected]
 
 LANG_CXX!

doc/data-analysis.md

@@ -0,0 +1,50 @@
+# Data Analysis
+
+Open **View → Data → Analysis**. The dock is hidden in the default layout and when
+first added to an older saved layout. Hidden docks do not sample data. **Zoom** is
+also available under **View → Data**.
+
+- **Algorithms** enables multiple byte metrics. Hover over a named legend entry
+  for its definition; click it to edit its color or visibility. Clicking the legend
+  does not remove the series.
+- **Options → Resolution (buckets)** selects 32, 64, 128, 256, 512, 1024, 2048 or
+  4096 buckets. Lower values give coarser graphs and less work. The default is 1024.
+- **Options** also controls lines, filled lines or vertical bars, separate tracks,
+  greyscale/rainbow/theme colors, custom colors, and structural markers.
+- Click the graph to seek. Drag to select bytes. Wheel or `+`/`-` zooms;
+  Shift+wheel or the arrow keys pans. `Home` fits all data, and `Esc` clears selection.
+- The bottom entropy overview shows the complete address span. Drag its window
+  to pan, drag its edges to resize the range, or double-click to fit all data.
+- **Range** fits the current section, segment, map, block or selection.
+  **Edit range** accepts radare2 expressions and inclusive endpoints.
+- **Follow** keeps the current seek address visible. Offset synchronization and
+  the global address-selection synchronization setting control integration with
+  disassembly and hexdump widgets.
+- **Find marker** searches sections, segments, maps, flags (including search hits)
+  and comments. The graph context menu provides comments, flags and “Show in”.
+  Hover details appear after the pointer rests for 650 ms.
+- Hexdump selections, sections and segments have direct analysis actions.
+  Other addressable widgets can use **Show in → Data Analysis**.
+
+The graph uses the current radare2 address space: virtual addresses with `io.va`
+enabled, otherwise physical offsets in the active descriptor. Gaps and failed reads
+do not contribute invented bytes. Each bucket reads at most 4096 bytes from centered
+windows in readable spans. Tooltips, the status line and exported CSV report how
+many bytes were actually read. Zoom in for complete coverage of a region. Entropy
+is measured per bucket, so very small buckets have a lower attainable entropy.
+
+Multiple overlaid series use a normalized percentage scale. Entropy's native scale
+is 0–8 bits/byte, unique bytes 0–256, and mean byte 0–255. A single series or separate
+tracks uses its native scale. CSV exports normalized values plus exact bucket bounds
+and coverage. Display settings are saved with the layout.
+
+Other widgets can call `MainWindow::showDataAnalysis(start, end)` or
+`DataAnalysisWidget::showRange(start, end)` with **inclusive** endpoints. Internally,
+`DataAnalysis::Range` and graph signals use half-open ranges.
+
+Run the focused tests with:
+
+```sh
+make -C tests/dataanalysis -j8 > /dev/null
+QT_QPA_PLATFORM=offscreen tests/dataanalysis/build/test_dataanalysis
+```

doc/deeplinks.md

@@ -210,6 +210,13 @@ The app bundle declares the scheme in `Info.plist` via `CFBundleURLTypes`
 the bundle is installed; `scripts/deeplink/register.sh` forces a refresh with
 `lsregister -f <iaito.app>`. The handler is dropped when the bundle is removed.
 
+`make run` launches the build without registering the URI handler. To optionally
+register the local bundle without installing it, run:
+
+```sh
+sh scripts/deeplink/register.sh "$PWD/build/iaito.app"
+```
+
 ### Windows
 
 `scripts/deeplink/register.bat` writes the `HKCU\Software\Classes\iaito` keys

doc/structures.md

@@ -0,0 +1,30 @@
+# Structures in the hexdump
+
+Open the hexdump sidebar's **Structures** tab, choose an r2 type, enter an address
+or expression, and press **Inspect**. **At cursor** uses the first selected byte
+or the current cursor. You can also right-click the hexdump and choose **Inspect
+structure here**; a type already linked to that address is selected automatically.
+
+The tree shows each field's declared type, value, address, and size. Expand nested
+structures, unions, arrays, and pointers to explore them. Selecting a field selects
+its bytes in the hexdump. Field colors match the byte highlights. The inspected
+structure stays anchored while you navigate, and **Refresh** preserves expanded
+fields and the selected row while rereading memory and type definitions.
+
+Types come from r2's type database, including imported C definitions and typedefs.
+The tree uses stored member offsets and the current `asm.bits` and `cfg.bigendian`
+settings. Large arrays are divided into expandable groups. Unmapped pointers and
+recursive references stop expansion; invalid or overflowing layouts are reported.
+Array expressions such as `uint16_t[16]` can be inspected directly.
+
+**Pin type** creates an r2 type link (`tl`) at the inspected address. The pinned
+address list also includes existing type links and command annotations (`Cr`) from
+the current r2 session. Define a named typedef before pinning an array expression.
+
+**Pin command…** stores a command at the address using the selected byte range or
+the chosen type's size. Double-click a pin to navigate to its address. Select a
+command pin and press **Run command** to display its output. **Unpin** removes only
+the selected type link or command annotation. Pins use r2's existing project data
+and are saved with the project. iaito also writes `iaito-memory-pins.json` inside the
+project directory to preserve types and pins omitted by some r2 binary project versions;
+keep that companion file when copying a project.

src/Iaito.pro

@@ -4,7 +4,7 @@ TARGET = iaito
 
 IAITO_VERSION_MAJOR = 6
 IAITO_VERSION_MINOR = 2
-IAITO_VERSION_PATCH = 2
+IAITO_VERSION_PATCH = 6
 
 CONFIG += c++20
 QMAKE_CXXFLAGS += -std=c++20
@@ -164,6 +164,8 @@ IAITO_R2GHIDRA_STATIC {
 QMAKE_SUBSTITUTES += IaitoConfig.h.in
 
 SOURCES += \
+    common/ExceptionInfo.cpp \
+    widgets/ExceptionBar.cpp \
     Main.cpp \
     core/Iaito.cpp \
     dialogs/EditStringDialog.cpp \
@@ -204,6 +206,7 @@ SOURCES += \
     widgets/ExportsWidget.cpp \
     widgets/FlagsWidget.cpp \
     widgets/FunctionsWidget.cpp \
+    widgets/GlobalVariablesWidget.cpp \
     widgets/ImportsWidget.cpp \
     widgets/CodeEditor.cpp \
     widgets/Omnibar.cpp \
@@ -230,6 +233,7 @@ SOURCES += \
     common/SvgIconEngine.cpp \
     common/SyntaxHighlighter.cpp \
     widgets/DecompilerWidget.cpp \
+    widgets/DecompilerTextEdit.cpp \
     widgets/VisualNavbar.cpp \
     widgets/GraphView.cpp \
     dialogs/settings/SettingsDialog.cpp \
@@ -255,6 +259,7 @@ SOURCES += \
     widgets/BinariesWidget.cpp \
     widgets/FilesWidget.cpp \
     widgets/FilesystemWidget.cpp \
+    common/SourceLineReference.cpp \
     widgets/GraphWidget.cpp \
     widgets/OverviewWidget.cpp \
     common/JsonTreeItem.cpp \
@@ -314,6 +319,7 @@ SOURCES += \
     common/HighDpiPixmap.cpp \
     widgets/GraphGridLayout.cpp \
     widgets/HexWidget.cpp \
+    widgets/HexPatWidget.cpp \
     widgets/AddressScrollBar.cpp \
     widgets/R2AIWidget.cpp \
     widgets/R2McpWidget.cpp \
@@ -333,6 +339,8 @@ SOURCES += \
     common/R2retdecDecompiler.cpp \
     menus/AddressableItemContextMenu.cpp \
     common/AddressableItemModel.cpp \
+    common/NameListModel.cpp \
+    widgets/NameListView.cpp \
     widgets/ListDockWidget.cpp \
     dialogs/MultitypeFileSaveDialog.cpp \
     widgets/BoolToggleDelegate.cpp \
@@ -355,12 +363,18 @@ SOURCES += \
     dialogs/AssemblerDialog.cpp \
     dialogs/ScriptManagerDialog.cpp \
     dialogs/ScriptManagerWidget.cpp \
-    widgets/ZoomWidget.cpp
+    widgets/ZoomWidget.cpp \
+    common/DataAnalysis.cpp \
+    common/TypeLayout.cpp \
+    widgets/DataAnalysisView.cpp \
+    widgets/DataAnalysisWidget.cpp
 
 GRAPHVIZ_SOURCES = \
     widgets/GraphvizLayout.cpp
 
 HEADERS  += \
+    common/ExceptionInfo.h \
+    widgets/ExceptionBar.h \
     common/R2Shims.h \
     core/Iaito.h \
     core/IaitoCommon.h \
@@ -408,6 +422,7 @@ HEADERS  += \
     widgets/ExportsWidget.h \
     widgets/FlagsWidget.h \
     widgets/FunctionsWidget.h \
+    widgets/GlobalVariablesWidget.h \
     widgets/ImportsWidget.h \
     widgets/Omnibar.h \
     widgets/RelocsWidget.h \
@@ -421,6 +436,7 @@ HEADERS  += \
     widgets/CodeInfoWidget.h \
     menus/DisassemblyContextMenu.h \
     menus/DecompilerContextMenu.h \
+    menus/ContextMenuIcons.h \
     menus/ColorPickerMenu.h \
     menus/PinPickerMenu.h \
     widgets/DisassemblyWidget.h \
@@ -434,6 +450,7 @@ HEADERS  += \
     common/SvgIconEngine.h \
     common/SyntaxHighlighter.h \
     widgets/DecompilerWidget.h \
+    widgets/DecompilerTextEdit.h \
     widgets/VisualNavbar.h \
     widgets/GraphView.h \
     dialogs/settings/SettingsDialog.h \
@@ -459,6 +476,7 @@ HEADERS  += \
     widgets/BinariesWidget.h \
     widgets/FilesWidget.h \
     widgets/FilesystemWidget.h \
+    common/SourceLineReference.h \
     widgets/GraphWidget.h \
     widgets/OverviewWidget.h \
     common/JsonTreeItem.h \
@@ -526,6 +544,8 @@ HEADERS  += \
     widgets/GraphLayout.h \
     widgets/GraphGridLayout.h \
     widgets/HexWidget.h \
+    widgets/HexPatWidget.h \
+    common/SparseHexLayout.h \
     widgets/AddressScrollBar.h \
     widgets/R2AIWidget.h \
     widgets/R2McpWidget.h \
@@ -542,6 +562,8 @@ HEADERS  += \
     common/R2retdecDecompiler.h \
     menus/AddressableItemContextMenu.h \
     common/AddressableItemModel.h \
+    common/NameListModel.h \
+    widgets/NameListView.h \
     widgets/ListDockWidget.h \
     widgets/AddressableItemList.h \
     dialogs/MultitypeFileSaveDialog.h \
@@ -567,11 +589,17 @@ HEADERS  += \
     dialogs/AssemblerDialog.h \
     dialogs/ScriptManagerDialog.h \
     dialogs/ScriptManagerWidget.h \
-    widgets/ZoomWidget.h
+    widgets/ZoomWidget.h \
+    common/DataAnalysis.h \
+    common/TypeLayout.h \
+    widgets/DataAnalysisView.h \
+    widgets/DataAnalysisWidget.h
 
 GRAPHVIZ_HEADERS = widgets/GraphvizLayout.h
 
 FORMS    += \
+    widgets/GlobalVariablesWidget.ui \
+    widgets/DataAnalysisWidget.ui \
     dialogs/AboutDialog.ui \
     dialogs/EditStringDialog.ui \
     dialogs/Base64EnDecodedWriteDialog.ui \
@@ -595,6 +623,7 @@ FORMS    += \
     widgets/FlagsWidget.ui \
     widgets/StringsWidget.ui \
     widgets/HexdumpWidget.ui \
+    widgets/HexPatWidget.ui \
     dialogs/SaveProjectDialog.ui \
     dialogs/settings/SettingsDialog.ui \
     dialogs/settings/AppearanceOptionsWidget.ui \
@@ -627,7 +656,6 @@ FORMS    += \
     dialogs/SetToDataDialog.ui \
     dialogs/EditVariablesDialog.ui \
     widgets/IaitoTreeView.ui \
-    widgets/ComboQuickFilterView.ui \
     dialogs/HexdumpRangeDialog.ui \
     dialogs/WelcomeDialog.ui \
     dialogs/EditMethodDialog.ui \

src/IaitoApplication.cpp

@@ -172,8 +172,7 @@ IaitoApplication::IaitoApplication(int &argc, char **argv)
 #endif
 #endif
     if (!parseCommandLineOptions()) {
-        QCoreApplication::exit();
-        // std::exit(1);
+        return;
     }
 
     if (!versionCheck()) {
@@ -338,9 +337,11 @@ IaitoApplication::IaitoApplication(int &argc, char **argv)
 
 IaitoApplication::~IaitoApplication()
 {
-    SamplesDB::waitForPending();
-    Plugins()->destroyPlugins();
-    delete mainWindow;
+    if (mainWindow) {
+        SamplesDB::waitForPending();
+        Plugins()->destroyPlugins();
+        delete mainWindow;
+    }
 }
 
 void IaitoApplication::launchNewInstance(const QStringList &args)
@@ -535,7 +536,16 @@ bool IaitoApplication::parseCommandLineOptions()
     cmd_parser.addOption(debugOption);
 #endif
 
-    cmd_parser.process(*this);
+    // process() exits without destroying QApplication for --version.
+    const bool parsed = cmd_parser.parse(arguments());
+    if (parsed && cmd_parser.isSet("version")) {
+        printf("%s %s\n", qPrintable(applicationName()), qPrintable(applicationVersion()));
+        exitCode = 0;
+        return false;
+    }
+    if (!parsed || cmd_parser.isSet("help") || cmd_parser.isSet("help-all")) {
+        cmd_parser.process(*this);
+    }
 
     IaitoCommandLineOptions opts;
     opts.args = cmd_parser.positionalArguments();

src/IaitoApplication.h

@@ -30,6 +30,7 @@ public:
     ~IaitoApplication();
 
     MainWindow *getMainWindow() { return mainWindow; }
+    int getExitCode() const { return exitCode; }
 
     void launchNewInstance(const QStringList &args = {});
 
@@ -51,7 +52,8 @@ private:
 
 private:
     bool m_FileAlreadyDropped;
-    MainWindow *mainWindow;
+    MainWindow *mainWindow = nullptr;
+    int exitCode = 1;
     IaitoCommandLineOptions clOptions;
 };
 

src/Main.cpp

@@ -154,6 +154,9 @@ int main(int argc, char *argv[])
 #endif
 
     IaitoApplication a(argc, argv);
+    if (!a.getMainWindow()) {
+        return a.getExitCode();
+    }
 
     return a.exec();
 }

src/common/AddressableItemModel.cpp

@@ -12,17 +12,20 @@ AddressableFilterProxyModel::AddressableFilterProxyModel(
     : AddressableItemModel<QSortFilterProxyModel>(parent)
 {
     setSourceModel(sourceModel);
-    addressableSourceModel = sourceModel;
 }
 
 RVA AddressableFilterProxyModel::address(const QModelIndex &index) const
 {
-    return addressableSourceModel->address(this->mapToSource(index));
+    const auto source = mapToSource(index);
+    return addressableSourceModel && source.isValid() ? addressableSourceModel->address(source)
+                                                      : RVA_INVALID;
 }
 
 QString AddressableFilterProxyModel::name(const QModelIndex &index) const
 {
-    return addressableSourceModel->name(this->mapToSource(index));
+    const auto source = mapToSource(index);
+    return addressableSourceModel && source.isValid() ? addressableSourceModel->name(source)
+                                                      : QString();
 }
 
 void AddressableFilterProxyModel::setSourceModel(QAbstractItemModel *)
@@ -32,6 +35,45 @@ void AddressableFilterProxyModel::setSourceModel(QAbstractItemModel *)
 
 void AddressableFilterProxyModel::setSourceModel(AddressableItemModelI *sourceModel)
 {
-    ParentClass::setSourceModel(sourceModel->asItemModel());
     addressableSourceModel = sourceModel;
+    ParentClass::setSourceModel(sourceModel ? sourceModel->asItemModel() : nullptr);
+}
+
+void AddressableFilterProxyModel::setTypeFilterColumn(int column)
+{
+    if (typeColumn != column) {
+        emit filterAboutToChange();
+        typeColumn = column;
+        invalidateFilter();
+        emit filterChanged();
+    }
+}
+
+void AddressableFilterProxyModel::setTypeFilter(const QVariant &type)
+{
+    if (selectedType != type) {
+        emit filterAboutToChange();
+        selectedType = type;
+        invalidateFilter();
+        emit filterChanged();
+    }
+}
+
+void AddressableFilterProxyModel::setFilterWildcard(const QString &pattern)
+{
+    emit filterAboutToChange();
+    ParentClass::setFilterWildcard(pattern);
+    emit filterChanged();
+}
+
+bool AddressableFilterProxyModel::filterAcceptsType(int row, const QModelIndex &parent) const
+{
+    return typeColumn < 0 || !selectedType.isValid()
+           || sourceModel()->index(row, typeColumn, parent).data().toString()
+                  == selectedType.toString();
+}
+
+bool AddressableFilterProxyModel::filterAcceptsRow(int row, const QModelIndex &parent) const
+{
+    return filterAcceptsType(row, parent) && ParentClass::filterAcceptsRow(row, parent);
 }

src/common/AddressableItemModel.h

@@ -43,6 +43,8 @@ public:
 
 class IAITO_EXPORT AddressableFilterProxyModel : public AddressableItemModel<QSortFilterProxyModel>
 {
+    Q_OBJECT
+
     using ParentClass = AddressableItemModel<QSortFilterProxyModel>;
 
 public:
@@ -51,10 +53,26 @@ public:
     RVA address(const QModelIndex &index) const override;
     QString name(const QModelIndex &) const override;
     void setSourceModel(AddressableItemModelI *sourceModel);
+    void setTypeFilterColumn(int column);
+    void setTypeFilter(const QVariant &type);
+    QVariant typeFilter() const { return selectedType; }
+
+public slots:
+    void setFilterWildcard(const QString &pattern);
+
+signals:
+    void filterAboutToChange();
+    void filterChanged();
+
+protected:
+    bool filterAcceptsRow(int row, const QModelIndex &parent) const override;
+    bool filterAcceptsType(int row, const QModelIndex &parent) const;
 
 private:
     void setSourceModel(QAbstractItemModel *sourceModel) override; // Don't use this directly
-    AddressableItemModelI *addressableSourceModel;
+    AddressableItemModelI *addressableSourceModel = nullptr;
+    int typeColumn = -1;
+    QVariant selectedType;
 };
 
 #endif // ADDRESSABLEITEMMODEL_H

src/common/Configuration.cpp

@@ -687,14 +687,15 @@ void Configuration::setVisualNavbarResolution(int divisor)
 Configuration::MemoryScrollBarMode Configuration::getMemoryScrollBarMode() const
 {
     const int mode
-        = s.value("memoryScrollBarMode", static_cast<int>(MemoryScrollBarMode::Hidden)).toInt();
+        = s.value("memoryScrollBarMode", static_cast<int>(MemoryScrollBarMode::Bounded)).toInt();
     switch (mode) {
     case static_cast<int>(MemoryScrollBarMode::Spring):
         return MemoryScrollBarMode::Spring;
-    case static_cast<int>(MemoryScrollBarMode::Bounded):
-        return MemoryScrollBarMode::Bounded;
-    default:
+    case static_cast<int>(MemoryScrollBarMode::Hidden):
         return MemoryScrollBarMode::Hidden;
+    case static_cast<int>(MemoryScrollBarMode::Bounded):
+    default:
+        return MemoryScrollBarMode::Bounded;
     }
 }
 
@@ -1163,6 +1164,16 @@ void Configuration::setDecompilerShowAddresses(bool enabled)
     s.setValue("decompilerShowAddresses", enabled);
 }
 
+bool Configuration::getDecompilerShowDisassembly()
+{
+    return s.value("decompilerShowDisassembly", false).toBool();
+}
+
+void Configuration::setDecompilerShowDisassembly(bool enabled)
+{
+    s.setValue("decompilerShowDisassembly", enabled);
+}
+
 bool Configuration::getBitmapTransparentState()
 {
     return s.value("bitmapGraphExportTransparency", false).value<bool>();

src/common/Configuration.h

@@ -236,6 +236,8 @@ public:
     void setDecompilerRunInBackground(bool enabled);
     bool getDecompilerShowAddresses();
     void setDecompilerShowAddresses(bool enabled);
+    bool getDecompilerShowDisassembly();
+    void setDecompilerShowDisassembly(bool enabled);
 
     bool getAddressRangeSelectionSyncEnabled() const;
     void setAddressRangeSelectionSyncEnabled(bool enabled);

src/common/DataAnalysis.cpp

@@ -0,0 +1,122 @@
+#include "DataAnalysis.h"
+
+#include <algorithm>
+#include <cmath>
+
+namespace DataAnalysis {
+
+Range sizedRange(RVA start, RVA size)
+{
+    return {start, start + qMin(size, RVA_MAX - start)};
+}
+
+Range intersect(Range a, Range b)
+{
+    const RVA start = qMax(a.start, b.start);
+    return {start, qMax(start, qMin(a.end, b.end))};
+}
+
+Range bucket(Range range, int index, int count)
+{
+    if (!range.valid() || count <= 0 || index < 0 || index >= count) {
+        return {};
+    }
+    // Avoid both floating point address rounding and multiplication overflow.
+    auto boundary = [range, count](RVA i) {
+        return range.start + (range.size() / count) * i + (range.size() % count) * i / count;
+    };
+    return {boundary(index), boundary(index + 1)};
+}
+
+Range centered(Range domain, RVA address, RVA size)
+{
+    if (!domain.valid()) {
+        return {};
+    }
+    size = qBound<RVA>(1, size, domain.size());
+    address = qBound(domain.start, address, domain.end - 1);
+    const RVA start = address - qMin(address - domain.start, size / 2);
+    const RVA clamped = qMin(start, domain.end - size);
+    return {clamped, clamped + size};
+}
+
+QVector<Range> mergeRanges(QVector<Range> ranges)
+{
+    std::sort(ranges.begin(), ranges.end(), [](Range a, Range b) { return a.start < b.start; });
+    QVector<Range> result;
+    for (auto range : ranges) {
+        if (!range.valid()) {
+            continue;
+        }
+        if (result.isEmpty() || result.last().end < range.start) {
+            result.append(range);
+        } else {
+            result.last().end = qMax(result.last().end, range.end);
+        }
+    }
+    return result;
+}
+
+Sample sample(
+    Range range,
+    const QVector<Range> &readable,
+    const std::function<QByteArray(RVA, int)> &read,
+    int budget)
+{
+    Sample result;
+    result.range = range;
+    if (!range.valid() || budget <= 0) {
+        return result;
+    }
+    QVector<Range> spans;
+    for (auto candidate : readable) {
+        const Range span = intersect(range, candidate);
+        if (span.valid()) {
+            spans.append(span);
+            result.covered += span.size();
+        }
+    }
+    std::array<int, 256> histogram{};
+    RVA remaining = result.covered;
+    for (auto span : spans) {
+        if (budget <= 0) {
+            break;
+        }
+        // Allocate the budget proportionally among disjoint readable spans.
+        const int share = qMax(1, int((long double) span.size() / remaining * budget));
+        const int length = int(qMin<RVA>(span.size(), qMin(budget, share)));
+        const RVA address = span.start + (span.size() - length) / 2;
+        const QByteArray data = read(address, length).left(length);
+        for (unsigned char byte : data) {
+            ++histogram[byte];
+        }
+        result.bytes += data.size();
+        budget -= length;
+        remaining -= span.size();
+    }
+    if (!result.bytes) {
+        return result;
+    }
+    auto &v = result.values;
+    for (int byte = 0; byte < 256; ++byte) {
+        const int n = histogram[byte];
+        if (!n) {
+            continue;
+        }
+        const double p = double(n) / result.bytes;
+        v[Entropy] -= p * std::log2(p) / 8.0;
+        v[Printable] += (byte >= 32 && byte <= 126) ? p : 0;
+        v[Zero] += byte == 0 ? p : 0;
+        v[FF] += byte == 255 ? p : 0;
+        v[Unique] += 1.0 / 256;
+        v[Mean] += p * byte / 255;
+        v[Alpha] += ((byte >= 'a' && byte <= 'z') || (byte >= 'A' && byte <= 'Z')) ? p : 0;
+        v[Digit] += (byte >= '0' && byte <= '9') ? p : 0;
+        v[Space] += (byte == ' ' || (byte >= 9 && byte <= 13)) ? p : 0;
+        v[Control] += (byte < 32 || byte == 127) ? p : 0;
+        v[High] += byte >= 128 ? p : 0;
+    }
+    return result;
+}
+
+} // namespace DataAnalysis

src/common/DataAnalysis.h

@@ -0,0 +1,64 @@
+#ifndef DATAANALYSIS_H
+#define DATAANALYSIS_H
+
+#include "core/IaitoCommon.h"
+
+#include <array>
+#include <functional>
+#include <QByteArray>
+#include <QVector>
+
+namespace DataAnalysis {
+
+// Half-open ranges, including when the exclusive end is RVA_MAX.
+struct Range
+{
+    RVA start = 0;
+    RVA end = 0;
+    bool valid() const { return start < end; }
+    RVA size() const { return end - start; }
+    bool contains(RVA address) const { return start <= address && address < end; }
+    bool operator==(const Range &other) const { return start == other.start && end == other.end; }
+    bool operator!=(const Range &other) const { return !(*this == other); }
+};
+
+enum Metric {
+    Entropy,
+    Printable,
+    Zero,
+    FF,
+    Unique,
+    Mean,
+    Alpha,
+    Digit,
+    Space,
+    Control,
+    High,
+    Count
+};
+
+struct Sample
+{
+    Range range;
+    RVA covered = 0;
+    int bytes = 0;
+    std::array<double, Count> values{}; // Normalized to [0, 1]; entropy / 8.
+};
+
+Range sizedRange(RVA start, RVA size);
+Range intersect(Range a, Range b);
+Range bucket(Range range, int index, int count);
+Range centered(Range domain, RVA address, RVA size);
+QVector<Range> mergeRanges(QVector<Range> ranges);
+
+// Bounded, deterministic sampling. Reads only known readable spans; missing bytes
+// never contribute fabricated 0xff data. Large buckets use centered windows.
+Sample sample(
+    Range range,
+    const QVector<Range> &readable,
+    const std::function<QByteArray(RVA, int)> &read,
+    int budget = 4096);
+
+} // namespace DataAnalysis
+
+#endif

src/common/DeepLink.cpp

@@ -337,7 +337,7 @@ QString linkAt(const QString &line, int posInLine)
     auto it = re.globalMatch(line);
     while (it.hasNext()) {
         const QRegularExpressionMatch m = it.next();
-        if (posInLine >= m.capturedStart() && posInLine <= m.capturedEnd()) {
+        if (posInLine >= m.capturedStart() && posInLine < m.capturedEnd()) {
             return m.captured();
         }
     }

src/common/ExceptionInfo.cpp

@@ -0,0 +1,124 @@
+#include "ExceptionInfo.h"
+
+#include <cmath>
+#include <QCoreApplication>
+#include <QJsonObject>
+#include <QVariant>
+
+static QString exceptionTr(const char *text)
+{
+    return QCoreApplication::translate("ExceptionInfo", text);
+}
+
+static quint64 exceptionAddress(const QJsonValue &value)
+{
+    bool ok = false;
+    quint64 result = ExceptionRegion::Invalid;
+    if (value.isString()) {
+        result = value.toString().toULongLong(&ok, 0);
+    } else if (
+        value.isDouble() && value.toDouble() >= 0
+        && std::floor(value.toDouble()) == value.toDouble()) {
+        result = value.toVariant().toULongLong(&ok);
+    }
+    return ok ? result : ExceptionRegion::Invalid;
+}
+
+bool ExceptionRegion::protects(quint64 address, quint64 size) const
+{
+    // Subtraction avoids overflowing a block's end near the address-space limit.
+    return size && address < to && (address >= from || from - address < size);
+}
+
+bool ExceptionRegion::touches(quint64 address, quint64 size) const
+{
+    return protects(address, size)
+           || (handler != Invalid && handler >= address && handler - address < size);
+}
+
+QString ExceptionRegion::label() const
+{
+    if (kind == QStringLiteral("cleanup")) {
+        return exceptionTr("Cleanup / finally");
+    }
+    const QString name = kind == QStringLiteral("filter") ? exceptionTr("Filter")
+                                                          : exceptionTr("Catch");
+    return QStringLiteral("%1 (%2)").arg(
+        name,
+        catchAll         ? exceptionTr("all exceptions")
+        : type.isEmpty() ? exceptionTr("unknown type")
+                         : type);
+}
+
+QString ExceptionRegion::description() const
+{
+    QString text = exceptionTr("#%1 · %2\nProtected: [0x%3, 0x%4)\nHandler: 0x%5")
+                       .arg(index)
+                       .arg(label())
+                       .arg(from, 0, 16)
+                       .arg(to, 0, 16)
+                       .arg(handler, 0, 16);
+    if (source != Invalid) {
+        text += exceptionTr("\nMetadata source: 0x%1").arg(source, 0, 16);
+    }
+    if (filter && filter != Invalid) {
+        text += exceptionTr("\nFilter value / address: 0x%1").arg(filter, 0, 16);
+    }
+    if (typeFilter) {
+        text += exceptionTr("\nType filter: %1").arg(typeFilter);
+    }
+    return text;
+}
+
+QColor ExceptionRegion::color() const
+{
+    // Stable across views and independent of metadata order; shared ranges share a color.
+    const quint64 hash = (from >> 2) ^ (to >> 1) ^ from;
+    return QColor::fromHsv(int(hash % 12) * 30, 145, 210);
+}
+
+QList<ExceptionRegion> ExceptionRegion::parse(const QJsonArray &array)
+{
+    QList<ExceptionRegion> result;
+    for (int i = 0; i < array.size(); ++i) {
+        const auto object = array.at(i).toObject();
+        ExceptionRegion region;
+        region.from = exceptionAddress(object.value(QStringLiteral("from")));
+        region.to = exceptionAddress(object.value(QStringLiteral("to")));
+        region.handler = exceptionAddress(object.value(QStringLiteral("handler")));
+        if (region.from == Invalid || region.to == Invalid || region.from >= region.to
+            || region.handler == Invalid) {
+            continue;
+        }
+        region.index = exceptionAddress(object.value(QStringLiteral("index")));
+        if (region.index == Invalid) {
+            region.index = quint64(i);
+        }
+        region.source = exceptionAddress(object.value(QStringLiteral("source")));
+        region.filter = exceptionAddress(object.value(QStringLiteral("filter")));
+        region.kind = object.value(QStringLiteral("kind")).toString();
+        region.type = object.value(QStringLiteral("type")).toString();
+        region.typeFilter = object.value(QStringLiteral("typeFilter")).toVariant().toLongLong();
+        region.catchAll = object.value(QStringLiteral("catchAll")).toBool();
+        result.append(region);
+    }
+    return result;
+}
+
+QList<ExceptionRegion> ExceptionRegion::forBlocks(
+    const QList<ExceptionRegion> &regions, const QJsonArray &blocks)
+{
+    QList<ExceptionRegion> result;
+    for (const auto &region : regions) {
+        for (const auto &value : blocks) {
+            const auto block = value.toObject();
+            const auto address = exceptionAddress(block.value(QStringLiteral("addr")));
+            const auto size = exceptionAddress(block.value(QStringLiteral("size")));
+            if (address != Invalid && size != Invalid && region.touches(address, size)) {
+                result.append(region);
+                break;
+            }
+        }
+    }
+    return result;
+}

src/common/ExceptionInfo.h

@@ -0,0 +1,36 @@
+#ifndef EXCEPTIONINFO_H
+#define EXCEPTIONINFO_H
+
+#include <limits>
+#include <QColor>
+#include <QJsonArray>
+#include <QList>
+#include <QString>
+
+// Addresses in iwj use half-open ranges: [from, to).
+struct ExceptionRegion
+{
+    static constexpr quint64 Invalid = std::numeric_limits<quint64>::max();
+    quint64 index = 0;
+    quint64 source = Invalid;
+    quint64 from = Invalid;
+    quint64 to = Invalid;
+    quint64 handler = Invalid;
+    quint64 filter = 0;
+    QString kind;
+    QString type;
+    qint64 typeFilter = 0;
+    bool catchAll = false;
+
+    bool contains(quint64 address) const { return from <= address && address < to; }
+    bool protects(quint64 address, quint64 size) const;
+    bool touches(quint64 address, quint64 size) const;
+    QString label() const;
+    QString description() const;
+    QColor color() const;
+    static QList<ExceptionRegion> parse(const QJsonArray &array);
+    static QList<ExceptionRegion> forBlocks(
+        const QList<ExceptionRegion> &regions, const QJsonArray &blocks);
+};
+
+#endif

src/common/IaitoSeekable.cpp

@@ -1,11 +1,9 @@
 #include "IaitoSeekable.h"
-#include "core/MainWindow.h"
-
-#include <QPlainTextEdit>
 
 IaitoSeekable::IaitoSeekable(QObject *parent)
     : QObject(parent)
 {
+    widgetOffset = Core()->getOffset();
     connect(Core(), &IaitoCore::seekChanged, this, &IaitoSeekable::onCoreSeekChanged);
 }
 
@@ -13,35 +11,98 @@ IaitoSeekable::~IaitoSeekable() {}
 
 void IaitoSeekable::setSynchronization(bool sync)
 {
+    if (synchronized == sync) {
+        return;
+    }
+    const RVA address = Core()->getOffset();
     synchronized = sync;
-    onCoreSeekChanged(Core()->getOffset());
+    seekHistory = {address};
+    historyIndex = 0;
+    updateSeek(address);
     emit syncChanged();
+    emit historyChanged();
 }
 
 void IaitoSeekable::onCoreSeekChanged(RVA addr)
 {
-    if (synchronized && widgetOffset != addr) {
-        updateSeek(addr, true);
+    if (synchronized) {
+        updateSeek(addr);
+        emit historyChanged();
     }
 }
 
-void IaitoSeekable::updateSeek(RVA addr, bool localOnly)
+void IaitoSeekable::seek(RVA addr)
 {
-    previousOffset = widgetOffset;
-    widgetOffset = addr;
-    if (synchronized && !localOnly) {
-        Core()->seek(addr);
+    if (addr == RVA_INVALID) {
+        return;
     }
+    if (synchronized) {
+        Core()->seek(addr);
+        return;
+    }
+    if (addr == widgetOffset) {
+        return;
+    }
+    seekHistory.resize(historyIndex + 1);
+    seekHistory.append(addr);
+    ++historyIndex;
+    updateSeek(addr);
+    emit historyChanged();
+}
 
+void IaitoSeekable::updateSeek(RVA addr)
+{
+    if (addr == RVA_INVALID || addr == widgetOffset) {
+        return;
+    }
+    widgetOffset = addr;
     emit seekableSeekChanged(addr);
 }
 
+bool IaitoSeekable::canSeekPrev() const
+{
+    if (synchronized) {
+        return Core()->core()->io->undo.undos > 0;
+    }
+    return historyIndex > 0;
+}
+
+bool IaitoSeekable::canSeekNext() const
+{
+    if (synchronized) {
+        return Core()->core()->io->undo.redos > 0;
+    }
+    return historyIndex + 1 < seekHistory.size();
+}
+
+QVector<RVA> IaitoSeekable::localHistory(bool forward) const
+{
+    QVector<RVA> result;
+    if (!synchronized) {
+        for (int i = historyIndex; i >= 0 && i < seekHistory.size(); i += forward ? 1 : -1) {
+            result.append(seekHistory.at(i));
+        }
+    }
+    return result;
+}
+
 void IaitoSeekable::seekPrev()
 {
     if (synchronized) {
         Core()->seekPrev();
-    } else {
-        this->seek(previousOffset);
+    } else if (canSeekPrev()) {
+        updateSeek(seekHistory.at(--historyIndex));
+        emit historyChanged();
+    }
+}
+
+void IaitoSeekable::seekNext()
+{
+    if (synchronized) {
+        Core()->seekNext();
+    } else if (canSeekNext()) {
+        updateSeek(seekHistory.at(++historyIndex));
+        emit historyChanged();
     }
 }
 

src/common/IaitoSeekable.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include "core/Iaito.h"
+#include <QVector>
 
 class MainWindow;
 
@@ -20,7 +21,7 @@ public:
      * In any case, IaitoSeekable::seekableSeekChanged is emitted.
      * @param addr the location to seek at.
      */
-    void seek(RVA addr) { updateSeek(addr, false); }
+    void seek(RVA addr);
 
     /**
      * @brief setSynchronization sets
@@ -44,6 +45,10 @@ public:
      */
     bool isSynchronized();
 
+    bool canSeekPrev() const;
+    bool canSeekNext() const;
+    QVector<RVA> localHistory(bool forward) const;
+
     /**
      * @brief seekToReference will seek to the function or the object which is
      * referenced in a given offset
@@ -56,6 +61,7 @@ public slots:
      * @brief seekPrev seeks to last location.
      */
     void seekPrev();
+    void seekNext();
 
     /**
      * @brief toggleSyncWithCore toggles
@@ -75,11 +81,8 @@ private:
      */
     RVA widgetOffset = RVA_INVALID;
 
-    /**
-     * @brief previousOffset last seek location.
-     * @todo maybe use an actual history?
-     */
-    RVA previousOffset = RVA_INVALID;
+    QVector<RVA> seekHistory;
+    int historyIndex = 0;
 
     /**
      * @brief synchronized tells with the seekable's offset is
@@ -89,12 +92,11 @@ private:
 
     /**
      * @brief internal method for changing the seek
-     * @param localOnly whether the seek should be updated globally if
-     * synchronized
      */
-    void updateSeek(RVA addr, bool localOnly);
+    void updateSeek(RVA addr);
 
 signals:
     void seekableSeekChanged(RVA addr);
     void syncChanged();
+    void historyChanged();
 };

src/common/NameListModel.cpp

@@ -0,0 +1,436 @@
+#include "NameListModel.h"
+
+#include <QStringList>
+
+namespace {
+
+QString compactName(const QString &name, const QString &previous)
+{
+    int prefix = 0;
+    const int limit = qMin(name.size(), previous.size());
+    while (prefix < limit && name.at(prefix) == previous.at(prefix)) {
+        ++prefix;
+    }
+    if (prefix > 0 && prefix < name.size() && name.at(prefix).isLowSurrogate()) {
+        --prefix;
+    }
+    return prefix > 2 && prefix < name.size() ? QStringLiteral("▶ ") + name.mid(prefix) : name;
+}
+
+QStringList nameParts(const QString &name)
+{
+    QStringList parts;
+    int start = 0;
+    int templates = 0;
+    int parentheses = 0;
+    int brackets = 0;
+    for (int i = 0; i < name.size(); ++i) {
+        const QChar c = name.at(i);
+        // Operators and their signatures belong to the leaf, including operator< and operator().
+        if (!templates && !parentheses && i == start && name.mid(i, 8) == QLatin1String("operator")
+            && (i + 8 == name.size()
+                || (!name.at(i + 8).isLetterOrNumber() && name.at(i + 8) != QLatin1Char('_')))) {
+            break;
+        }
+        if (c == QLatin1Char('<')) {
+            ++templates;
+        } else if (c == QLatin1Char('>') && templates) {
+            --templates;
+        } else if (c == QLatin1Char('(')) {
+            ++parentheses;
+        } else if (c == QLatin1Char(')') && parentheses) {
+            --parentheses;
+        } else if (c == QLatin1Char('[')) {
+            ++brackets;
+        } else if (c == QLatin1Char(']') && brackets) {
+            --brackets;
+        }
+        if (templates || parentheses || brackets) {
+            continue;
+        }
+        int separator = 0;
+        if (c == QLatin1Char(':') && i + 1 < name.size() && name.at(i + 1) == c) {
+            separator = 2;
+        } else if (c == QLatin1Char('-') && i + 1 < name.size() && name.at(i + 1) == QLatin1Char('>')) {
+            separator = 2;
+        } else if (c == QLatin1Char('.') || c == QLatin1Char('/') || c == QLatin1Char('$')) {
+            separator = 1;
+        }
+        if (separator) {
+            i += separator - 1;
+            if (i + 1 < name.size()) {
+                parts.append(name.mid(start, i + 1 - start));
+                start = i + 1;
+            }
+        }
+    }
+    parts.append(name.mid(start));
+    return parts;
+}
+
+} // namespace
+
+NameListModel::NameListModel(AddressableItemModelI *source, int nameColumn, QObject *parent)
+    : AddressableItemModel<QAbstractProxyModel>(parent)
+    , nameColumn(nameColumn)
+{
+    setSourceModel(source->asItemModel());
+}
+
+NameListModel::~NameListModel() = default;
+
+void NameListModel::setSourceModel(QAbstractItemModel *source)
+{
+    beginRebuild();
+    if (sourceModel()) {
+        disconnect(sourceModel(), nullptr, this, nullptr);
+    }
+    QAbstractProxyModel::setSourceModel(source);
+    sourceProvider = dynamic_cast<AddressableItemModelI *>(source);
+    if (source) {
+        if (auto filter = qobject_cast<AddressableFilterProxyModel *>(source)) {
+            // QSortFilterProxyModel can remove thousands of disjoint row ranges for one query.
+            // Rebuild the presentation once, after the entire filter operation has finished.
+            connect(filter, &AddressableFilterProxyModel::filterAboutToChange, this, [this] {
+                ++filterChangeDepth;
+                beginRebuild();
+            });
+            connect(filter, &AddressableFilterProxyModel::filterChanged, this, [this] {
+                --filterChangeDepth;
+                endRebuild();
+            });
+        }
+        connect(source, &QAbstractItemModel::modelAboutToBeReset, this, &NameListModel::beginRebuild);
+        connect(source, &QAbstractItemModel::modelReset, this, &NameListModel::endRebuild);
+        connect(
+            source, &QAbstractItemModel::layoutAboutToBeChanged, this, &NameListModel::beginRebuild);
+        connect(source, &QAbstractItemModel::layoutChanged, this, &NameListModel::endRebuild);
+        connect(
+            source, &QAbstractItemModel::rowsAboutToBeInserted, this, &NameListModel::beginRebuild);
+        connect(source, &QAbstractItemModel::rowsInserted, this, &NameListModel::endRebuild);
+        connect(source, &QAbstractItemModel::rowsAboutToBeRemoved, this, &NameListModel::beginRebuild);
+        connect(source, &QAbstractItemModel::rowsRemoved, this, &NameListModel::endRebuild);
+        connect(source, &QAbstractItemModel::rowsAboutToBeMoved, this, &NameListModel::beginRebuild);
+        connect(source, &QAbstractItemModel::rowsMoved, this, &NameListModel::endRebuild);
+        connect(source, &QAbstractItemModel::dataChanged, this, &NameListModel::sourceDataChanged);
+        connect(
+            source, &QAbstractItemModel::headerDataChanged, this, &NameListModel::headerDataChanged);
+        connect(source, &QObject::destroyed, this, [this] {
+            sourceProvider = nullptr;
+            beginRebuild();
+            endRebuild();
+        });
+    }
+    endRebuild();
+}
+
+NameListModel::Node *NameListModel::node(const QModelIndex &index) const
+{
+    return index.isValid() ? static_cast<Node *>(index.internalPointer()) : nullptr;
+}
+
+QModelIndex NameListModel::nodeIndex(Node *item, int column) const
+{
+    return item && item != &root ? createIndex(item->row, column, item) : QModelIndex();
+}
+
+QModelIndex NameListModel::index(int row, int column, const QModelIndex &parent) const
+{
+    if (row < 0 || column < 0 || column >= columnCount() || (parent.isValid() && parent.column())) {
+        return {};
+    }
+    const Node *item = parent.isValid() ? node(parent) : &root;
+    return row < int(item->children.size()) ? nodeIndex(item->children[row].get(), column)
+                                            : QModelIndex();
+}
+
+QModelIndex NameListModel::parent(const QModelIndex &index) const
+{
+    auto item = node(index);
+    return item ? nodeIndex(item->parent) : QModelIndex();
+}
+
+int NameListModel::rowCount(const QModelIndex &parent) const
+{
+    if (parent.isValid() && parent.column()) {
+        return 0;
+    }
+    const Node *item = parent.isValid() ? node(parent) : &root;
+    return int(item->children.size());
+}
+
+int NameListModel::columnCount(const QModelIndex &) const
+{
+    return sourceProvider ? sourceModel()->columnCount() : 0;
+}
+
+bool NameListModel::hasChildren(const QModelIndex &parent) const
+{
+    return rowCount(parent) > 0;
+}
+
+QModelIndex NameListModel::mapToSource(const QModelIndex &index) const
+{
+    auto item = node(index);
+    return sourceProvider && item && item->source.isValid()
+               ? item->source.sibling(item->source.row(), index.column())
+               : QModelIndex();
+}
+
+QModelIndex NameListModel::mapFromSource(const QModelIndex &index) const
+{
+    return index.isValid()
+               ? nodeIndex(sourceNodes.value(index.sibling(index.row(), 0)), index.column())
+               : QModelIndex();
+}
+
+QVariant NameListModel::data(const QModelIndex &index, int role) const
+{
+    auto item = node(index);
+    if (!item) {
+        return {};
+    }
+    if (!item->source.isValid()) {
+        if (role == GroupPathRole) {
+            return item->groupPath;
+        }
+        if (index.column() == nameColumn) {
+            if (role == Qt::DisplayRole) {
+                return item->label;
+            }
+            if (role == Qt::ToolTipRole) {
+                return QStringLiteral("<qt>%1</qt>").arg(item->groupPath.toHtmlEscaped());
+            }
+        }
+        return {};
+    }
+    if (index.column() == nameColumn && item->named) {
+        if (role == Qt::ToolTipRole) {
+            const auto tooltip = mapToSource(index).data(NameToolTipRole);
+            if (tooltip.isValid()) {
+                return tooltip;
+            }
+            return QStringLiteral("<qt>%1</qt>").arg(item->fullName.toHtmlEscaped());
+        }
+        if (role == Qt::DisplayRole) {
+            QString label = item->label;
+            if (compact && item->row > 0) {
+                auto previous = item->parent->children[item->row - 1].get();
+                if (previous->named) {
+                    label = compactName(label, previous->label);
+                }
+            }
+            const QString original = mapToSource(index).data().toString();
+            // Keep decorations represented as text, such as a function's pin emoji.
+            if (original.endsWith(item->fullName)) {
+                return original.left(original.size() - item->fullName.size()) + label;
+            }
+            return label;
+        }
+    }
+    return mapToSource(index).data(role);
+}
+
+Qt::ItemFlags NameListModel::flags(const QModelIndex &index) const
+{
+    if (!index.isValid()) {
+        return Qt::NoItemFlags;
+    }
+    auto source = mapToSource(index);
+    return source.isValid() ? source.flags() : Qt::ItemIsEnabled | Qt::ItemIsSelectable;
+}
+
+QVariant NameListModel::headerData(int section, Qt::Orientation orientation, int role) const
+{
+    return sourceProvider ? sourceModel()->headerData(section, orientation, role) : QVariant();
+}
+
+void NameListModel::sort(int column, Qt::SortOrder order)
+{
+    if (sourceProvider) {
+        sourceModel()->sort(column, order);
+    }
+}
+
+RVA NameListModel::address(const QModelIndex &index) const
+{
+    const auto source = mapToSource(index);
+    return sourceProvider && source.isValid() ? sourceProvider->address(source) : RVA_INVALID;
+}
+
+QString NameListModel::name(const QModelIndex &index) const
+{
+    const auto source = mapToSource(index);
+    return sourceProvider && source.isValid() ? sourceProvider->name(source) : QString();
+}
+
+void NameListModel::beginRebuild()
+{
+    if (!resetting) {
+        resetting = true;
+        beginResetModel();
+    }
+}
+
+void NameListModel::endRebuild()
+{
+    if (resetting && !filterChangeDepth) {
+        rebuild();
+        resetting = false;
+        endResetModel();
+    }
+}
+
+void NameListModel::appendSource(
+    Node *parent, const QModelIndex &source, const QString &label, bool named)
+{
+    auto item = std::make_unique<Node>();
+    item->parent = parent;
+    item->row = int(parent->children.size());
+    item->source = source;
+    item->label = label;
+    item->named = named;
+    if (named) {
+        item->fullName = sourceProvider->name(source);
+    }
+    auto ptr = item.get();
+    sourceNodes.insert(source, ptr);
+    parent->children.push_back(std::move(item));
+    // Preserve existing class/member relationships and unnamed function detail rows.
+    if (sourceModel()->hasChildren(source)) {
+        for (int row = 0; row < sourceModel()->rowCount(source); ++row) {
+            auto child = sourceModel()->index(row, 0, source);
+            QString childName = sourceProvider->name(child);
+            const bool childNamed = !childName.isEmpty() && childName != ptr->fullName;
+            if (childNamed) {
+                for (const QString &separator :
+                     {QStringLiteral("::"),
+                      QStringLiteral("."),
+                      QStringLiteral("/"),
+                      QStringLiteral("$"),
+                      QStringLiteral("->")}) {
+                    const QString prefix = ptr->fullName + separator;
+                    if (childName.startsWith(prefix)) {
+                        childName.remove(0, prefix.size());
+                        break;
+                    }
+                }
+            }
+            appendSource(ptr, child, childName, childNamed);
+        }
+    }
+}
+
+void NameListModel::rebuild()
+{
+    sourceNodes.clear();
+    groups.clear();
+    root.children.clear();
+    if (!sourceProvider) {
+        return;
+    }
+    for (int row = 0; row < sourceModel()->rowCount(); ++row) {
+        auto source = sourceModel()->index(row, 0);
+        const QString fullName = sourceProvider->name(source);
+        Node *parent = &root;
+        QString label = fullName;
+        if (hierarchy) {
+            const auto parts = nameParts(fullName);
+            QString path;
+            for (int part = 0; part + 1 < parts.size(); ++part) {
+                path += parts[part];
+                auto group = groups.value(path);
+                if (!group) {
+                    auto item = std::make_unique<Node>();
+                    item->parent = parent;
+                    item->row = int(parent->children.size());
+                    item->label = parts[part];
+                    item->groupPath = path;
+                    group = item.get();
+                    parent->children.push_back(std::move(item));
+                    groups.insert(path, group);
+                }
+                parent = group;
+            }
+            label = parts.last();
+        }
+        appendSource(parent, source, label, true);
+    }
+    collapseSingleGroups(&root);
+}
+
+void NameListModel::collapseSingleGroups(Node *parent)
+{
+    for (auto &child : parent->children) {
+        if (child->source.isValid()) {
+            continue; // Class/member relationships belong to the source model.
+        }
+        collapseSingleGroups(child.get());
+        if (child->children.size() == 1 && child->children.front()->source.isValid()) {
+            auto group = std::move(child);
+            child = std::move(group->children.front());
+            child->label.prepend(group->label);
+            child->parent = parent;
+            child->row = group->row;
+            groups.remove(group->groupPath);
+        }
+    }
+}
+
+void NameListModel::sourceDataChanged(const QModelIndex &first, const QModelIndex &last)
+{
+    if (resetting) {
+        return;
+    }
+    for (int row = first.row(); row <= last.row(); ++row) {
+        auto source = sourceModel()->index(row, 0, first.parent());
+        auto item = sourceNodes.value(source);
+        if (item && item->named && item->fullName != sourceProvider->name(source)) {
+            beginRebuild();
+            endRebuild();
+            return;
+        }
+    }
+    for (int row = first.row(); row <= last.row(); ++row) {
+        auto source = sourceModel()->index(row, 0, first.parent());
+        auto item = sourceNodes.value(source);
+        if (item) {
+            emit dataChanged(nodeIndex(item, first.column()), nodeIndex(item, last.column()));
+        }
+    }
+}
+
+void NameListModel::namesChanged(Node *parent)
+{
+    if (!parent->children.empty()) {
+        emit dataChanged(
+            nodeIndex(parent->children.front().get(), nameColumn),
+            nodeIndex(parent->children.back().get(), nameColumn),
+            {Qt::DisplayRole});
+        for (const auto &child : parent->children) {
+            namesChanged(child.get());
+        }
+    }
+}
+
+void NameListModel::setCompact(bool enabled)
+{
+    if (compact != enabled) {
+        compact = enabled;
+        namesChanged(&root);
+    }
+}
+
+void NameListModel::setHierarchy(bool enabled)
+{
+    if (hierarchy != enabled) {
+        beginRebuild();
+        hierarchy = enabled;
+        endRebuild();
+    }
+}
+
+QModelIndex NameListModel::groupIndex(const QString &path) const
+{
+    return nodeIndex(groups.value(path));
+}

src/common/NameListModel.h

@@ -0,0 +1,79 @@
+#ifndef NAMELISTMODEL_H
+#define NAMELISTMODEL_H
+
+#include "AddressableItemModel.h"
+
+#include <memory>
+#include <vector>
+#include <QAbstractProxyModel>
+#include <QHash>
+
+// Presentation only: all addresses, descriptions and edits belong to the source model.
+class IAITO_EXPORT NameListModel : public AddressableItemModel<QAbstractProxyModel>
+{
+public:
+    enum {
+        GroupPathRole = Qt::UserRole + 0x1000,
+        // A complete, HTML-escaped name tooltip supplied by models with alternate spellings.
+        NameToolTipRole
+    };
+
+    NameListModel(AddressableItemModelI *source, int nameColumn, QObject *parent = nullptr);
+    ~NameListModel() override;
+
+    void setSourceModel(QAbstractItemModel *source) override;
+    QModelIndex mapToSource(const QModelIndex &index) const override;
+    QModelIndex mapFromSource(const QModelIndex &index) const override;
+    QModelIndex index(int row, int column, const QModelIndex &parent = {}) const override;
+    QModelIndex parent(const QModelIndex &index) const override;
+    int rowCount(const QModelIndex &parent = {}) const override;
+    int columnCount(const QModelIndex &parent = {}) const override;
+    bool hasChildren(const QModelIndex &parent = {}) const override;
+    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
+    QVariant headerData(
+        int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
+    Qt::ItemFlags flags(const QModelIndex &index) const override;
+    void sort(int column, Qt::SortOrder order = Qt::AscendingOrder) override;
+    RVA address(const QModelIndex &index) const override;
+    QString name(const QModelIndex &index) const override;
+
+    void setCompact(bool enabled);
+    void setHierarchy(bool enabled);
+    bool isHierarchy() const { return hierarchy; }
+    QModelIndex groupIndex(const QString &path) const;
+
+private:
+    struct Node
+    {
+        Node *parent = nullptr;
+        int row = 0;
+        QModelIndex source;
+        QString label;
+        QString fullName;
+        bool named = false;
+        QString groupPath;
+        std::vector<std::unique_ptr<Node>> children;
+    };
+
+    AddressableItemModelI *sourceProvider = nullptr;
+    int nameColumn;
+    bool compact = false;
+    bool hierarchy = false;
+    bool resetting = false;
+    int filterChangeDepth = 0;
+    Node root;
+    QHash<QModelIndex, Node *> sourceNodes;
+    QHash<QString, Node *> groups;
+
+    Node *node(const QModelIndex &index) const;
+    QModelIndex nodeIndex(Node *node, int column = 0) const;
+    void beginRebuild();
+    void endRebuild();
+    void rebuild();
+    void collapseSingleGroups(Node *parent);
+    void appendSource(Node *parent, const QModelIndex &source, const QString &label, bool named);
+    void sourceDataChanged(const QModelIndex &first, const QModelIndex &last);
+    void namesChanged(Node *parent);
+};
+
+#endif

src/common/R2DecaiDecompiler.cpp

@@ -2,6 +2,7 @@
 #include "R2DecaiDecompiler.h"
 #include "Iaito.h"
 
+#include <QByteArray>
 #include <QJsonArray>
 #include <QJsonObject>
 
@@ -48,7 +49,20 @@ static QStringList parseDecaiEvalLines(const QString &output)
 
 QStringList R2DecaiDecompiler::listOptions()
 {
-    QString output = Core()->cmd("decai -e");
+    // r2js console.log writes to stdout instead of the command's output buffer.
+    const QByteArray script = R"((function() {
+        var log = console.log;
+        var lines = [];
+        console.log = function() { lines.push(Array.prototype.join.call(arguments, " ")); };
+        try {
+            var output = r2.cmd("decai -e");
+            if (output) { lines.push(output); }
+        } finally {
+            console.log = log;
+        }
+        r2.log(lines.join("\n"));
+    })())";
+    QString output = Core()->cmd(("js base64:" + script.toBase64()).constData());
     return parseDecaiEvalLines(output);
 }
 

src/common/ShortcutManager.cpp

@@ -106,6 +106,61 @@ const QVector<ShortcutDescriptor> &catalog()
              QT_TR_NOOP("Close tab"),
              {},
              QKeySequence::Close});
+#ifdef Q_OS_MACOS
+        // Qt maps the Command key to CTRL on macOS.
+        const auto panelModifier = Qt::CTRL;
+#else
+        const auto panelModifier = Qt::META;
+#endif
+        t.append(
+            {"global.maximizePanel",
+             ShortcutScope::Global,
+             QT_TR_NOOP("Toggle panel maximization"),
+             {QKeySequence(panelModifier | Qt::Key_Return),
+              QKeySequence(panelModifier | Qt::Key_Enter)},
+             Unknown});
+        t.append(
+            {"global.selectPanelTab1",
+             ShortcutScope::Global,
+             QT_TR_NOOP("Select panel tab 1"),
+             {QKeySequence(panelModifier | Qt::Key_1)},
+             Unknown});
+        t.append(
+            {"global.selectPanelTab2",
+             ShortcutScope::Global,
+             QT_TR_NOOP("Select panel tab 2"),
+             {QKeySequence(panelModifier | Qt::Key_2)},
+             Unknown});
+        t.append(
+            {"global.selectPanelTab3",
+             ShortcutScope::Global,
+             QT_TR_NOOP("Select panel tab 3"),
+             {QKeySequence(panelModifier | Qt::Key_3)},
+             Unknown});
+        t.append(
+            {"global.selectPanelTab4",
+             ShortcutScope::Global,
+             QT_TR_NOOP("Select panel tab 4"),
+             {QKeySequence(panelModifier | Qt::Key_4)},
+             Unknown});
+        t.append(
+            {"global.selectPanelTab5",
+             ShortcutScope::Global,
+             QT_TR_NOOP("Select panel tab 5"),
+             {QKeySequence(panelModifier | Qt::Key_5)},
+             Unknown});
+        t.append(
+            {"global.focusNextFrame",
+             ShortcutScope::Global,
+             QT_TR_NOOP("Focus next frame"),
+             {QKeySequence(panelModifier | Qt::Key_J)},
+             Unknown});
+        t.append(
+            {"global.focusPreviousFrame",
+             ShortcutScope::Global,
+             QT_TR_NOOP("Focus previous frame"),
+             {QKeySequence(panelModifier | Qt::Key_K)},
+             Unknown});
         t.append(
             {"global.back",
              ShortcutScope::Global,
@@ -254,6 +309,12 @@ const QVector<ShortcutDescriptor> &catalog()
              QT_TR_NOOP("Set to data (resize)"),
              {QKeySequence(Qt::Key_Asterisk)},
              Unknown});
+        t.append(
+            {"disasm.flag",
+             ShortcutScope::Disassembly,
+             QT_TR_NOOP("Add / edit flag"),
+             {QKeySequence(Qt::Key_F)},
+             Unknown});
         t.append(
             {"disasm.rename",
              ShortcutScope::Disassembly,
@@ -276,7 +337,7 @@ const QVector<ShortcutDescriptor> &catalog()
             {"disasm.linkType",
              ShortcutScope::Disassembly,
              QT_TR_NOOP("Link type"),
-             {QKeySequence(Qt::Key_L)},
+             {QKeySequence(Qt::SHIFT | Qt::Key_L)},
              Unknown});
         t.append(
             {"disasm.addBreakpoint",
@@ -308,12 +369,30 @@ const QVector<ShortcutDescriptor> &catalog()
              QT_TR_NOOP("Switch to graph view"),
              {QKeySequence(Qt::Key_Space)},
              Unknown});
+        t.append(
+            {"disasm.switchToDecompiler",
+             ShortcutScope::Disassembly,
+             QT_TR_NOOP("Switch to decompiler view"),
+             {QKeySequence(Qt::Key_Tab)},
+             Unknown});
         t.append(
             {"disasm.seekPrev",
              ShortcutScope::Disassembly,
              QT_TR_NOOP("Seek to previous"),
              {QKeySequence(Qt::Key_Escape)},
              Unknown});
+        t.append(
+            {"disasm.cursorLeft",
+             ShortcutScope::Disassembly,
+             QT_TR_NOOP("Move cursor left"),
+             {QKeySequence(Qt::Key_H), QKeySequence(Qt::Key_Left)},
+             Unknown});
+        t.append(
+            {"disasm.cursorRight",
+             ShortcutScope::Disassembly,
+             QT_TR_NOOP("Move cursor right"),
+             {QKeySequence(Qt::Key_L), QKeySequence(Qt::Key_Right)},
+             Unknown});
         t.append(
             {"disasm.cursorDown",
              ShortcutScope::Disassembly,
@@ -341,8 +420,8 @@ const QVector<ShortcutDescriptor> &catalog()
         t.append(
             {"disasm.jumpToOffset",
              ShortcutScope::Disassembly,
-             QT_TR_NOOP("Jump to offset under cursor"),
-             {QKeySequence(Qt::Key_Return)},
+             QT_TR_NOOP("Follow reference under cursor"),
+             {QKeySequence(Qt::Key_Return), QKeySequence(Qt::Key_Enter)},
              Unknown});
 
         t.append(
@@ -351,6 +430,30 @@ const QVector<ShortcutDescriptor> &catalog()
              QT_TR_NOOP("Copy"),
              {},
              QKeySequence::Copy});
+        t.append(
+            {"decompiler.cursorLeft",
+             ShortcutScope::Decompiler,
+             QT_TR_NOOP("Move cursor left"),
+             {QKeySequence(Qt::Key_H)},
+             Unknown});
+        t.append(
+            {"decompiler.cursorDown",
+             ShortcutScope::Decompiler,
+             QT_TR_NOOP("Move cursor down"),
+             {QKeySequence(Qt::Key_J)},
+             Unknown});
+        t.append(
+            {"decompiler.cursorUp",
+             ShortcutScope::Decompiler,
+             QT_TR_NOOP("Move cursor up"),
+             {QKeySequence(Qt::Key_K)},
+             Unknown});
+        t.append(
+            {"decompiler.cursorRight",
+             ShortcutScope::Decompiler,
+             QT_TR_NOOP("Move cursor right"),
+             {QKeySequence(Qt::Key_L)},
+             Unknown});
         t.append(
             {"decompiler.comment",
              ShortcutScope::Decompiler,
@@ -381,6 +484,24 @@ const QVector<ShortcutDescriptor> &catalog()
              QT_TR_NOOP("Edit variables"),
              {QKeySequence(Qt::Key_Y)},
              Unknown});
+        t.append(
+            {"decompiler.followReference",
+             ShortcutScope::Decompiler,
+             QT_TR_NOOP("Follow reference under cursor"),
+             {QKeySequence(Qt::Key_Return), QKeySequence(Qt::Key_Enter)},
+             Unknown});
+        t.append(
+            {"decompiler.matchBrace",
+             ShortcutScope::Decompiler,
+             QT_TR_NOOP("Jump to matching brace"),
+             {QKeySequence(Qt::Key_Percent), QKeySequence(Qt::SHIFT | Qt::Key_Percent)},
+             Unknown});
+        t.append(
+            {"decompiler.toggleFold",
+             ShortcutScope::Decompiler,
+             QT_TR_NOOP("Collapse/expand block"),
+             {QKeySequence(Qt::Key_Space)},
+             Unknown});
         t.append(
             {"decompiler.toggleBreakpoint",
              ShortcutScope::Decompiler,
@@ -399,6 +520,12 @@ const QVector<ShortcutDescriptor> &catalog()
              QT_TR_NOOP("Seek to previous"),
              {QKeySequence(Qt::Key_Escape)},
              Unknown});
+        t.append(
+            {"decompiler.switchToDisassembly",
+             ShortcutScope::Decompiler,
+             QT_TR_NOOP("Switch to disassembly view"),
+             {QKeySequence(Qt::Key_Tab)},
+             Unknown});
 
         t.append(
             {"addressable.copyAddress",
@@ -492,6 +619,12 @@ const QVector<ShortcutDescriptor> &catalog()
              {QKeySequence(Qt::SHIFT | Qt::Key_L)},
              Unknown});
         t.append({"hex.copy", ShortcutScope::Hexdump, QT_TR_NOOP("Copy"), {}, QKeySequence::Copy});
+        t.append(
+            {"hex.flag",
+             ShortcutScope::Hexdump,
+             QT_TR_NOOP("Add / edit flag"),
+             {QKeySequence(Qt::Key_F)},
+             Unknown});
         t.append(
             {"hex.copyAddress",
              ShortcutScope::Hexdump,

src/common/SourceLineReference.cpp

@@ -0,0 +1,30 @@
+#include "SourceLineReference.h"
+
+QList<SourceLineReference> SourceLineReference::parse(const QString &contents)
+{
+    QList<SourceLineReference> result;
+    for (const QString &row : contents.split(QLatin1Char('\n'))) {
+        const int firstTab = row.indexOf(QLatin1Char('\t'));
+        const int secondTab = row.indexOf(QLatin1Char('\t'), firstTab + 1);
+        if (firstTab <= 0 || secondTab < 0) {
+            continue;
+        }
+        const QString addressText = row.left(firstTab);
+        if (!addressText.startsWith(QStringLiteral("0x"))) {
+            continue;
+        }
+        bool addressOk = false;
+        bool lineOk = false;
+        const quint64 address = addressText.mid(2).toULongLong(&addressOk, 16);
+        const int line = row.mid(firstTab + 1, secondTab - firstTab - 1).toInt(&lineOk);
+        if (!addressOk || !lineOk || line < 0) {
+            continue;
+        }
+        QString code = row.mid(secondTab + 1);
+        if (code.endsWith(QLatin1Char('\r'))) {
+            code.chop(1);
+        }
+        result.append({address, line, code});
+    }
+    return result;
+}

src/common/SourceLineReference.h

@@ -0,0 +1,14 @@
+#pragma once
+
+#include <QList>
+#include <QString>
+
+struct SourceLineReference
+{
+    quint64 address;
+    int line;
+    QString code;
+
+    // fs.r2's /cl files contain address, line number and source text, separated by tabs.
+    static QList<SourceLineReference> parse(const QString &contents);
+};

src/common/SparseHexLayout.h

@@ -0,0 +1,88 @@
+#ifndef SPARSEHEXLAYOUT_H
+#define SPARSEHEXLAYOUT_H
+
+#include <algorithm>
+#include <cstdint>
+#include <cstring>
+#include <vector>
+
+namespace SparseHexLayout {
+
+// Offsets are relative to a bounded read buffer, never absolute addresses.
+struct Row
+{
+    int offset;
+    int size;
+    int fill = -1;
+    bool continues = false;
+};
+
+inline int uniformPrefix(const unsigned char *bytes, int size)
+{
+    const uint64_t pattern = bytes[0] ? UINT64_MAX : 0;
+    int i = 0;
+    while (size - i >= int(sizeof(pattern))) {
+        uint64_t word;
+        std::memcpy(&word, bytes + i, sizeof(word));
+        if (word != pattern) {
+            break;
+        }
+        i += sizeof(word);
+    }
+    while (i < size && bytes[i] == bytes[0]) {
+        ++i;
+    }
+    return i;
+}
+
+inline std::vector<Row> build(
+    const unsigned char *bytes, int size, int rowSize, int itemSize, int maxRows)
+{
+    std::vector<Row> rows;
+    if (size <= 0 || rowSize <= 0 || itemSize <= 0 || maxRows <= 0) {
+        return rows;
+    }
+    rows.reserve(std::min(maxRows, size / rowSize + 2));
+    int begin = 0;
+    int pos = 0;
+    while (pos < size && int(rows.size()) < maxRows) {
+        int step = itemSize;
+        if (bytes[pos] == 0 || bytes[pos] == 0xff) {
+            const int run = uniformPrefix(bytes + pos, size - pos);
+            if (run > rowSize * 2) {
+                if (pos > begin) {
+                    rows.push_back({begin, pos - begin});
+                    if (int(rows.size()) == maxRows) {
+                        return rows;
+                    }
+                }
+                // Keep multi-byte items intact, including at the end of a read.
+                const int folded = run - run % itemSize;
+                rows.push_back({pos, folded, bytes[pos], pos + run == size});
+                begin = pos = pos + folded;
+                continue;
+            }
+            // Consume short runs once too; rescanning every suffix is quadratic
+            // when the user selects a large number of columns.
+            step = std::max(itemSize, run - run % itemSize);
+        }
+        step = std::min(step, size - pos);
+        while (step > 0 && int(rows.size()) < maxRows) {
+            const int count = std::min(step, rowSize - (pos - begin));
+            pos += count;
+            step -= count;
+            if (pos - begin == rowSize) {
+                rows.push_back({begin, rowSize});
+                begin = pos;
+            }
+        }
+    }
+    if (pos > begin && int(rows.size()) < maxRows) {
+        rows.push_back({begin, pos - begin});
+    }
+    return rows;
+}
+
+} // namespace SparseHexLayout
+
+#endif // SPARSEHEXLAYOUT_H

src/common/TypeLayout.cpp

@@ -0,0 +1,253 @@
+#include "TypeLayout.h"
+
+#include <algorithm>
+#include <cstring>
+#include <limits>
+#include <QRegularExpression>
+
+void TypeLayout::load(const QString &text, int pointerByteSize)
+{
+    database.clear();
+    sizes.clear();
+    pointerSize = qBound(1, pointerByteSize, 8);
+    for (const QString &line : text.split(QLatin1Char('\n'))) {
+        const int separator = line.indexOf(QLatin1Char('='));
+        if (separator > 0) {
+            database.insert(line.left(separator), line.mid(separator + 1));
+        }
+    }
+}
+
+QStringList TypeLayout::names() const
+{
+    QStringList result;
+    for (auto it = database.cbegin(); it != database.cend(); ++it) {
+        if (it.value() == QLatin1String("struct") || it.value() == QLatin1String("union")
+            || it.value() == QLatin1String("typedef") || it.value() == QLatin1String("type")
+            || it.value() == QLatin1String("enum")) {
+            result.append(it.key());
+        }
+    }
+    result.sort(Qt::CaseInsensitive);
+    return result;
+}
+
+QMap<quint64, QString> TypeLayout::links() const
+{
+    QMap<quint64, QString> result;
+    for (auto it = database.cbegin(); it != database.cend(); ++it) {
+        if (it.key().startsWith(QLatin1String("link."))) {
+            bool ok = false;
+            const quint64 address = it.key().mid(5).toULongLong(&ok, 16);
+            if (ok) {
+                result.insert(address, it.value());
+            }
+        }
+    }
+    return result;
+}
+
+QString TypeLayout::resolve(QString type) const
+{
+    static const QRegularExpression qualifiers(QStringLiteral("\\b(const|volatile|restrict)\\b"));
+    static const QRegularExpression tag(QStringLiteral("^(struct|union|enum)\\s+"));
+    QStringList visited;
+    for (int i = 0; i < 32; ++i) {
+        type.remove(qualifiers);
+        type = type.simplified();
+        type.remove(tag);
+        if (visited.contains(type)) {
+            return QString();
+        }
+        visited.append(type);
+        if (database.value(type) != QLatin1String("typedef")) {
+            return type;
+        }
+        type = database.value(QStringLiteral("typedef.") + type);
+    }
+    return QString();
+}
+
+bool TypeLayout::array(const QString &type, QString *element, quint64 *count)
+{
+    static const QRegularExpression expression(QStringLiteral("^(.*?)\\[(\\d+)\\](.*)$"));
+    const auto match = expression.match(type);
+    if (!match.hasMatch()) {
+        return false;
+    }
+    bool ok = false;
+    *count = match.captured(2).toULongLong(&ok);
+    *element = (match.captured(1) + match.captured(3)).trimmed();
+    return ok;
+}
+
+QString TypeLayout::kind(const QString &type) const
+{
+    const QString resolved = resolve(type);
+    if (resolved.endsWith(QLatin1Char('*'))) {
+        return QStringLiteral("pointer");
+    }
+    QString element;
+    quint64 count;
+    if (array(resolved, &element, &count)) {
+        return QStringLiteral("array");
+    }
+    return database.value(resolved);
+}
+
+QVector<TypeLayout::Field> TypeLayout::fields(const QString &type) const
+{
+    return fields(type, {resolve(type)});
+}
+
+QVector<TypeLayout::Field> TypeLayout::fields(const QString &type, const QStringList &ancestors) const
+{
+    const QString resolved = resolve(type);
+    const QString category = kind(resolved);
+    QVector<Field> result;
+    if (category != QLatin1String("struct") && category != QLatin1String("union")) {
+        return result;
+    }
+    const QString prefix = category + QLatin1Char('.') + resolved;
+    const QStringList members = database.value(prefix).split(QLatin1Char(','), Qt::SkipEmptyParts);
+    bool allZero = true;
+    for (const QString &name : members) {
+        const QStringList details
+            = database.value(prefix + QLatin1Char('.') + name).split(QLatin1Char(','));
+        if (details.size() < 3) {
+            continue;
+        }
+        bool ok = false;
+        const quint64 offset = details.at(1).toULongLong(&ok, 0);
+        if (!ok) {
+            continue;
+        }
+        const quint64 count = details.at(2).toULongLong(&ok, 0);
+        if (!ok) {
+            continue;
+        }
+        result.append({name, details.first(), offset, qMax<quint64>(1, count)});
+        allZero &= offset == 0;
+    }
+    // Some bundled r2 definitions omit offsets entirely. Their members are packed.
+    if (allZero && category == QLatin1String("struct") && result.size() > 1) {
+        quint64 offset = 0;
+        for (Field &field : result) {
+            field.offset = offset;
+            const quint64 bytes = size(field.type, ancestors);
+            if (bytes && field.count <= (std::numeric_limits<quint64>::max() - offset) / bytes) {
+                offset += bytes * field.count;
+            }
+        }
+    }
+    return result;
+}
+
+quint64 TypeLayout::size(const QString &type) const
+{
+    const auto cached = sizes.constFind(type);
+    if (cached != sizes.cend()) {
+        return cached.value();
+    }
+    const quint64 result = size(type, {});
+    sizes.insert(type, result);
+    return result;
+}
+
+quint64 TypeLayout::size(const QString &type, QStringList ancestors) const
+{
+    const QString resolved = resolve(type);
+    if (resolved.isEmpty() || ancestors.size() >= 32 || ancestors.contains(resolved)) {
+        return 0;
+    }
+    ancestors.append(resolved);
+    const QString category = kind(resolved);
+    if (category == QLatin1String("pointer")) {
+        return pointerSize;
+    }
+    QString element;
+    quint64 count;
+    if (array(resolved, &element, &count)) {
+        const quint64 stride = size(element, ancestors);
+        return stride && count <= std::numeric_limits<quint64>::max() / stride ? stride * count : 0;
+    }
+    if (category == QLatin1String("enum")) {
+        return 4;
+    }
+    if (category == QLatin1String("struct") || category == QLatin1String("union")) {
+        quint64 end = 0;
+        for (const Field &field : fields(resolved, ancestors)) {
+            const quint64 stride = size(field.type, ancestors);
+            if (!stride
+                || field.count > (std::numeric_limits<quint64>::max() - field.offset) / stride) {
+                return 0;
+            }
+            end = qMax(end, field.offset + stride * field.count);
+        }
+        return end;
+    }
+    bool ok = false;
+    const qint64 bits = database.value(QStringLiteral("type.") + resolved + QStringLiteral(".size"))
+                            .toLongLong(&ok);
+    return ok && bits > 0 ? quint64(bits) / 8 : 0;
+}
+
+quint64 TypeLayout::unsignedValue(const QByteArray &bytes, bool bigEndian)
+{
+    quint64 result = 0;
+    for (int i = 0; i < qMin(8, int(bytes.size())); ++i) {
+        const int shift = (bigEndian ? bytes.size() - i - 1 : i) * 8;
+        if (shift < 64) {
+            result |= quint64(static_cast<unsigned char>(bytes.at(i))) << shift;
+        }
+    }
+    return result;
+}
+
+QString TypeLayout::value(const QString &type, const QByteArray &bytes, bool bigEndian) const
+{
+    const QString resolved = resolve(type);
+    const quint64 number = unsignedValue(bytes, bigEndian);
+    if (kind(resolved) == QLatin1String("pointer")) {
+        return QStringLiteral("0x%1").arg(number, 0, 16);
+    }
+    if (resolved == QLatin1String("float") && bytes.size() == 4) {
+        const quint32 raw = quint32(number);
+        float value;
+        memcpy(&value, &raw, sizeof(value));
+        return QString::number(value, 'g', 8);
+    }
+    if (resolved == QLatin1String("double") && bytes.size() == 8) {
+        double value;
+        memcpy(&value, &number, sizeof(value));
+        return QString::number(value, 'g', 16);
+    }
+    if (bytes.size() > 8) {
+        return QString::fromLatin1(bytes.toHex(' '));
+    }
+    const bool isUnsigned = resolved.startsWith(QLatin1String("uint"))
+                            || resolved.startsWith(QLatin1String("unsigned"));
+    quint64 extended = number;
+    if (!isUnsigned && !bytes.isEmpty() && bytes.size() < 8
+        && (number & (quint64(1) << (bytes.size() * 8 - 1)))) {
+        extended |= std::numeric_limits<quint64>::max() << (bytes.size() * 8);
+    }
+    qint64 signedNumber;
+    memcpy(&signedNumber, &extended, sizeof(signedNumber));
+    QString result = isUnsigned ? QString::number(number) : QString::number(signedNumber);
+    if (kind(resolved) == QLatin1String("enum")) {
+        const QString prefix = QStringLiteral("enum.") + resolved + QLatin1Char('.');
+        for (auto it = database.cbegin(); it != database.cend(); ++it) {
+            bool ok = false;
+            const qint64 candidate = it.value().toLongLong(&ok, 0);
+            if (it.key().startsWith(prefix) && ok && candidate == signedNumber) {
+                result += QStringLiteral(" (%1)").arg(it.key().mid(prefix.size()));
+                break;
+            }
+        }
+    }
+    if (resolved == QLatin1String("char") && number >= 32 && number < 127) {
+        result += QStringLiteral(" '%1'").arg(QChar(ushort(number)));
+    }
+    return result + QStringLiteral(" (0x%1)").arg(number, 0, 16);
+}

src/common/TypeLayout.h

@@ -0,0 +1,42 @@
+#ifndef TYPELAYOUT_H
+#define TYPELAYOUT_H
+
+#include <QByteArray>
+#include <QHash>
+#include <QMap>
+#include <QStringList>
+#include <QVector>
+
+// A snapshot of r2's type database. Keep stored offsets: pf formats and tsj can
+// lose padding, and JSON numbers cannot represent every 64-bit type-link address.
+class TypeLayout
+{
+public:
+    struct Field
+    {
+        QString name;
+        QString type;
+        quint64 offset = 0;
+        quint64 count = 1;
+    };
+
+    void load(const QString &database, int pointerSize);
+    QStringList names() const;
+    QMap<quint64, QString> links() const;
+    QString resolve(QString type) const;
+    QString kind(const QString &type) const;
+    QVector<Field> fields(const QString &type) const;
+    quint64 size(const QString &type) const;
+    QString value(const QString &type, const QByteArray &bytes, bool bigEndian) const;
+    static quint64 unsignedValue(const QByteArray &bytes, bool bigEndian);
+    static bool array(const QString &type, QString *element, quint64 *count);
+
+private:
+    QHash<QString, QString> database;
+    int pointerSize = 8;
+    mutable QHash<QString, quint64> sizes;
+    QVector<Field> fields(const QString &type, const QStringList &ancestors) const;
+    quint64 size(const QString &type, QStringList ancestors) const;
+};
+
+#endif // TYPELAYOUT_H

src/core/DockManager.cpp

@@ -22,6 +22,7 @@
 #include <QPoint>
 #include <QRect>
 #include <QScopedValueRollback>
+#include <QSet>
 #include <QSizeGrip>
 #include <QTabBar>
 #include <QTimer>
@@ -43,6 +44,28 @@ static const char *dockHandleResizeGripProperty = "iaitoDockHandleResizeGrip";
 static const char *dockTabCloseButtonIndexProperty = "iaitoDockTabCloseButtonIndex";
 static const char *dockTabBarConfiguredProperty = "iaitoDockTabBarConfigured";
 
+// Four opaque strips outline the active frame without changing its layout.
+// Keeping them narrow avoids translucent child compositing artifacts on macOS.
+class DockFocusBorder : public QWidget
+{
+public:
+    explicit DockFocusBorder(QWidget *parent)
+        : QWidget(parent)
+    {
+        setObjectName(QStringLiteral("activeFrameBorder"));
+        setAttribute(Qt::WA_TransparentForMouseEvents);
+        setAttribute(Qt::WA_OpaquePaintEvent);
+        setFocusPolicy(Qt::NoFocus);
+    }
+
+protected:
+    void paintEvent(QPaintEvent *) override
+    {
+        QPainter painter(this);
+        painter.fillRect(rect(), palette().highlight());
+    }
+};
+
 // Translucent highlight, in accent color, of the region a dragged panel would
 // occupy if dropped now. Transparent to mouse input so it never interferes with
 // the drag. Has two modes (see updateDropOverlay):
@@ -206,12 +229,6 @@ QString panelDisplayName(const IaitoDockWidget *dock)
     return name;
 }
 
-QString normalizedDockTabText(QString text)
-{
-    text.remove(QLatin1Char('&'));
-    return text.trimmed();
-}
-
 QPoint mouseEventGlobalPos(const QMouseEvent *event)
 {
 #if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
@@ -321,26 +338,54 @@ DockManager::DockManager(MainWindow *mainWindow)
     , backend(new QtDockBackend(mainWindow))
 {
     dockWidgets.reserve(20);
+    connect(mainWindow, &QMainWindow::tabifiedDockWidgetActivated, this, [this](QDockWidget *dock) {
+        auto *panel = qobject_cast<IaitoDockWidget *>(dock);
+        if (dockWidgets.contains(panel)) {
+            setActiveDock(panel);
+        }
+    });
 }
 
 DockManager::~DockManager()
 {
+    for (auto border : activeFrameBorders) {
+        delete border;
+    }
     delete dropOverlay;
     delete backend;
 }
 
 void DockManager::addWidget(IaitoDockWidget *widget)
 {
+    restoreMaximizedPanel();
     dockWidgets.push_back(widget);
-    connect(widget, &QDockWidget::visibilityChanged, this, [this](bool) {
+    connect(widget, &QDockWidget::visibilityChanged, this, [this, widget](bool) {
         if (!dockRelayoutInProgress) {
+            const bool hidden = widget->isHidden();
+            if (!maximizedLayoutState.isEmpty()
+                && ((widget == maximizedDock && hidden)
+                    || (widget != maximizedDock && !hidden && !widget->isFloating()))) {
+                // Closing the expanded panel or opening another panel leaves
+                // maximization while preserving the requested visibility.
+                restoreMaximizedPanel();
+                widget->setVisible(!hidden);
+                if (!hidden) {
+                    widget->raise();
+                }
+            }
             emit layoutMutated();
         }
+        requestUpdateActiveFrame();
     });
-    connect(widget, &QDockWidget::topLevelChanged, this, [this](bool) {
+    connect(widget, &QDockWidget::topLevelChanged, this, [this, widget](bool floating) {
         if (!dockRelayoutInProgress) {
+            if (!maximizedLayoutState.isEmpty()) {
+                restoreMaximizedPanel();
+                widget->setFloating(floating);
+            }
             emit layoutMutated();
         }
+        requestUpdateActiveFrame();
     });
     requestUpdateTabBars();
     emit panelAdded(widget);
@@ -349,8 +394,12 @@ void DockManager::addWidget(IaitoDockWidget *widget)
 
 void DockManager::removeWidget(IaitoDockWidget *widget)
 {
+    restoreMaximizedPanel();
     dockWidgets.removeAll(widget);
     pluginDocks.removeAll(widget);
+    if (activeDock == widget) {
+        setActiveDock(nullptr);
+    }
     requestUpdateTabBars();
     emit panelRemoved(widget);
     emit layoutMutated();
@@ -490,14 +539,78 @@ void DockManager::updateDockTabBars()
     for (auto *dockWidget : dockWidgets) {
         configureDockWidget(dockWidget);
     }
-    QSet<IaitoDockWidget *> claimed;
     for (auto *tabBar : backend->dockTabBars()) {
         if (updateEmptyDockTabBar(tabBar)) {
             continue;
         }
-        if (configureDockTabBar(tabBar)) {
-            stampTabBar(tabBar, claimed);
+        configureDockTabBar(tabBar);
+    }
+    updateActiveFrame();
+}
+
+void DockManager::setActiveDock(IaitoDockWidget *dock)
+{
+    if (activeDock == dock) {
+        return;
+    }
+    activeDock = dock;
+    requestUpdateActiveFrame();
+}
+
+void DockManager::requestUpdateActiveFrame()
+{
+    if (activeFrameUpdateScheduled) {
+        return;
+    }
+    activeFrameUpdateScheduled = true;
+    QTimer::singleShot(0, this, [this]() {
+        activeFrameUpdateScheduled = false;
+        updateActiveFrame();
+    });
+}
+
+void DockManager::updateActiveFrame()
+{
+    auto *dock = activeDock.data();
+    if (!dock || dock->visibleRegion().isEmpty()) {
+        for (auto border : activeFrameBorders) {
+            if (border) {
+                border->hide();
+            }
         }
+        return;
+    }
+
+    QWidget *owner = dock->window();
+    QRect frame(dock->mapTo(owner, QPoint()), dock->size());
+    for (auto *tabBar : backend->dockTabBars()) {
+        if (isMainDockTabBar(tabBar) && tabBar->window() == owner
+            && dockForDockTab(tabBar, tabBar->currentIndex()) == dock) {
+            frame = frame.united(QRect(tabBar->mapTo(owner, QPoint()), tabBar->size()));
+            break;
+        }
+    }
+
+    const int width = 2;
+    const QRect edges[] = {
+        QRect(frame.left(), frame.top(), frame.width(), width),
+        QRect(frame.left(), frame.bottom() - width + 1, frame.width(), width),
+        QRect(frame.left(), frame.top(), width, frame.height()),
+        QRect(frame.right() - width + 1, frame.top(), width, frame.height()),
+    };
+    while (activeFrameBorders.size() < 4) {
+        activeFrameBorders.append(nullptr);
+    }
+    for (int i = 0; i < 4; ++i) {
+        auto &border = activeFrameBorders[i];
+        if (!border) {
+            border = new DockFocusBorder(owner);
+        } else if (border->parentWidget() != owner) {
+            border->setParent(owner);
+        }
+        border->setGeometry(edges[i]);
+        border->show();
+        border->raise();
     }
 }
 
@@ -568,7 +681,7 @@ bool DockManager::configureDockTabBar(QTabBar *tabBar)
 
 bool DockManager::isMainDockTabBar(QTabBar *tabBar) const
 {
-    if (!tabBar || tabBar->count() == 0 || !tabBar->isVisible()) {
+    if (!tabBar || tabBar->count() == 0 || tabBar->visibleRegion().isEmpty()) {
         return false;
     }
 
@@ -580,30 +693,6 @@ bool DockManager::isMainDockTabBar(QTabBar *tabBar) const
     return true;
 }
 
-void DockManager::stampTabBar(QTabBar *tabBar, QSet<IaitoDockWidget *> &claimed)
-{
-    // Qt labels each tab with the dock's window title. Resolve every tab to its
-    // dock once (claiming across all bars so duplicate titles map bijectively)
-    // and record the dock pointer in tabData, so later lookups are exact instead
-    // of relying on title-string matching.
-    for (int i = 0; i < tabBar->count(); ++i) {
-        const QString want = normalizedDockTabText(tabBar->tabText(i));
-        if (want.isEmpty()) {
-            continue;
-        }
-        for (auto *dock : dockWidgets) {
-            if (claimed.contains(dock)) {
-                continue;
-            }
-            if (normalizedDockTabText(panelDisplayName(dock)) == want) {
-                tabBar->setTabData(i, QVariant::fromValue<QObject *>(dock));
-                claimed.insert(dock);
-                break;
-            }
-        }
-    }
-}
-
 void DockManager::updateDockTabCloseButtons(QTabBar *tabBar, int hoveredIndex)
 {
     if (!tabBar) {
@@ -732,6 +821,7 @@ void DockManager::showDockContextMenu(QWidget *parent, IaitoDockWidget *dock, co
 
 void DockManager::placeDockTab(IaitoDockWidget *dock, DockDropKind kind)
 {
+    restoreMaximizedPanel();
     IaitoDockWidget *targetDock = dockSplitReference(dock);
     if (!targetDock) {
         return;
@@ -761,6 +851,7 @@ void DockManager::detachDockTab(IaitoDockWidget *dock, const QPoint &globalPos)
         return;
     }
 
+    restoreMaximizedPanel();
     backend->removeDock(dock);
     dock->setParent(mainWindow);
     backend->setDockFloating(dock, true);
@@ -1332,27 +1423,236 @@ bool DockManager::closeCurrentTab()
     return false;
 }
 
+bool DockManager::selectCurrentPanelTab(int index)
+{
+    if (index < 0 || dockTabDragActive) {
+        return false;
+    }
+    // Expanded panels temporarily hide their sibling tabs. Restore the group
+    // to resolve its visual order, then expand the newly selected panel again.
+    const bool wasMaximized = !maximizedLayoutState.isEmpty();
+    restoreMaximizedPanel();
+    QPointer<IaitoDockWidget> dock = activeDock;
+    if (!dock || dock->isHidden()) {
+        dock = dockForWidget(QApplication::focusWidget());
+    }
+
+    if (wasMaximized) {
+        flushNativeDockLayout();
+    }
+    IaitoDockWidget *target = nullptr;
+    if (dock && !dock->isHidden()) {
+        for (auto *tabBar : backend->dockTabBars()) {
+            if (!isMainDockTabBar(tabBar) || index >= tabBar->count()) {
+                continue;
+            }
+            for (int i = 0; i < tabBar->count(); ++i) {
+                if (dockForDockTab(tabBar, i) == dock) {
+                    target = dockForDockTab(tabBar, index);
+                    break;
+                }
+            }
+            if (target) {
+                target->raiseMemoryWidget();
+                setActiveDock(target);
+                break;
+            }
+        }
+    }
+    if (wasMaximized) {
+        toggleCurrentPanelMaximized();
+    }
+    return target != nullptr;
+}
+
+bool DockManager::focusNextFrame(bool forward)
+{
+    if (dockTabDragActive) {
+        return false;
+    }
+    const bool wasMaximized = !maximizedLayoutState.isEmpty();
+    restoreMaximizedPanel();
+    QPointer<IaitoDockWidget> current = activeDock;
+    if (!current || current->isHidden()) {
+        current = dockForWidget(QApplication::focusWidget());
+    }
+    if (wasMaximized) {
+        flushNativeDockLayout();
+    }
+
+    struct Frame
+    {
+        IaitoDockWidget *panel;
+        QRect rect;
+    };
+    QList<Frame> frames;
+    for (auto *dock : dockWidgets) {
+        // Inactive tabs are parked offscreen by Qt. Only the selected panel
+        // represents a frame; floating windows are outside the main layout.
+        if (dock->isFloating() || dock->parentWidget() != mainWindow || !dock->isEnabled()
+            || dock->visibleRegion().isEmpty()) {
+            continue;
+        }
+        QRect rect = dock->geometry();
+        for (auto *tabBar : backend->dockTabBars()) {
+            if (isMainDockTabBar(tabBar) && dockForDockTab(tabBar, tabBar->currentIndex()) == dock) {
+                // Include the tab bar so tabbed and standalone frames in the
+                // same row sort together regardless of their content offset.
+                rect = rect.united(tabBar->geometry());
+                break;
+            }
+        }
+        frames.append({dock, rect});
+    }
+    std::stable_sort(frames.begin(), frames.end(), [](const Frame &a, const Frame &b) {
+        return a.rect.top() == b.rect.top() ? a.rect.left() < b.rect.left()
+                                            : a.rect.top() < b.rect.top();
+    });
+
+    QPointer<IaitoDockWidget> target;
+    QPointer<QWidget> focus;
+    if (!frames.isEmpty()) {
+        int index = -1;
+        for (int i = 0; i < frames.size(); ++i) {
+            if (frames.at(i).panel == current) {
+                index = i;
+                break;
+            }
+        }
+        const int next = index < 0 ? (forward ? 0 : frames.size() - 1)
+                                   : (index + (forward ? 1 : frames.size() - 1)) % frames.size();
+        target = frames.at(next).panel;
+        focus = target->focusWidget();
+        target->raiseMemoryWidget();
+        setActiveDock(target);
+    }
+    if (wasMaximized) {
+        toggleCurrentPanelMaximized();
+    }
+    if (target) {
+        target->activateWindow();
+        if (focus && focus->isEnabled() && focus->isVisibleTo(target)) {
+            focus->setFocus(Qt::ShortcutFocusReason);
+            if (maximizedDock == target) {
+                maximizedFocusWidget = focus;
+            }
+        }
+    }
+    return target != nullptr;
+}
+
+IaitoDockWidget *DockManager::dockForWidget(QWidget *widget) const
+{
+    for (; widget; widget = widget->parentWidget()) {
+        if (auto *tabBar = qobject_cast<QTabBar *>(widget)) {
+            if (isMainDockTabBar(tabBar)) {
+                return dockForDockTab(tabBar, tabBar->currentIndex());
+            }
+        }
+        if (auto *dock = qobject_cast<IaitoDockWidget *>(widget)) {
+            if (dockWidgets.contains(dock)) {
+                return dock;
+            }
+        }
+    }
+    return nullptr;
+}
+
+QByteArray DockManager::saveState() const
+{
+    // Maximization is temporary: saved layouts retain the tiled arrangement.
+    return maximizedLayoutState.isEmpty() ? backend->saveState() : maximizedLayoutState;
+}
+
+bool DockManager::toggleCurrentPanelMaximized()
+{
+    if (!maximizedLayoutState.isEmpty()) {
+        restoreMaximizedPanel();
+        return true;
+    }
+    if (dockTabDragActive) {
+        return false;
+    }
+    IaitoDockWidget *dock = activeDock;
+    if (!dock || dock->isHidden()) {
+        dock = dockForWidget(QApplication::focusWidget());
+    }
+    if (!dock || dock->isHidden()) {
+        return false;
+    }
+
+    QScopedValueRollback<bool> relayoutGuard(dockRelayoutInProgress, true);
+    maximizedLayoutState = backend->saveState();
+    maximizedDock = dock;
+    QWidget *focus = QApplication::focusWidget();
+    maximizedFocusWidget = focus && (focus == dock || dock->isAncestorOf(focus)) ? focus : nullptr;
+    maximizedDockMaximumSize = dock->maximumSize();
+    dock->setMaximumSize(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX);
+
+    const bool wasAnimated = mainWindow->isAnimated();
+    mainWindow->setAnimated(false);
+    if (dock->isFloating()) {
+        backend->setDockFloating(dock, false);
+    }
+    if (backend->areaOf(dock) == Qt::NoDockWidgetArea) {
+        backend->addDock(dock, Qt::TopDockWidgetArea);
+    }
+    for (auto *other : dockWidgets) {
+        if (other != dock && !other->isFloating()) {
+            other->hide();
+        }
+    }
+    dock->raiseMemoryWidget();
+    if (maximizedFocusWidget) {
+        maximizedFocusWidget->setFocus(Qt::ShortcutFocusReason);
+    }
+    setActiveDock(dock);
+    mainWindow->setAnimated(wasAnimated);
+    requestUpdateTabBars();
+    return true;
+}
+
+void DockManager::restoreMaximizedPanel()
+{
+    if (maximizedLayoutState.isEmpty()) {
+        return;
+    }
+    QScopedValueRollback<bool> relayoutGuard(dockRelayoutInProgress, true);
+    const QByteArray state = maximizedLayoutState;
+    const QPointer<IaitoDockWidget> dock = maximizedDock;
+    const QPointer<QWidget> focus = maximizedFocusWidget;
+    maximizedLayoutState.clear();
+    maximizedDock.clear();
+    maximizedFocusWidget.clear();
+    if (dock) {
+        dock->setMaximumSize(maximizedDockMaximumSize);
+    }
+    const bool wasAnimated = mainWindow->isAnimated();
+    mainWindow->setAnimated(false);
+    backend->restoreState(state);
+    mainWindow->setAnimated(wasAnimated);
+    if (dock && !dock->isHidden()) {
+        dock->raiseMemoryWidget();
+        if (focus) {
+            focus->setFocus(Qt::ShortcutFocusReason);
+        }
+        setActiveDock(dock);
+    }
+    requestUpdateTabBars();
+}
+
 IaitoDockWidget *DockManager::dockForDockTab(QTabBar *tabBar, int index) const
 {
     if (!tabBar || index < 0 || index >= tabBar->count()) {
         return nullptr;
     }
 
-    if (QObject *object = tabBar->tabData(index).value<QObject *>()) {
-        if (auto *dock = qobject_cast<IaitoDockWidget *>(object)) {
-            if (dockWidgets.contains(dock)) {
-                return dock;
-            }
-        }
-    }
-
-    const QString requestedText = normalizedDockTabText(tabBar->tabText(index));
-    if (requestedText.isEmpty()) {
-        return nullptr;
-    }
-
+    // QMainWindow owns tabData: Qt 5/6 store the dock's QWidget address as a
+    // quintptr and use it to preserve the active tab during layout changes and
+    // saveState(). Read it without overwriting it or guessing from tab titles.
+    const quintptr dockId = tabBar->tabData(index).value<quintptr>();
     for (auto *dock : dockWidgets) {
-        if (dock && normalizedDockTabText(panelDisplayName(dock)) == requestedText) {
+        if (reinterpret_cast<quintptr>(static_cast<QWidget *>(dock)) == dockId) {
             return dock;
         }
     }
@@ -1449,6 +1749,7 @@ void DockManager::startDockWidgetDrag(
         return;
     }
 
+    restoreMaximizedPanel();
     dockTabDragActive = true;
     dockDragOffset = offset;
     updateDropOverlay(globalPos);
@@ -1744,6 +2045,24 @@ void DockManager::clearDockDrag()
 
 bool DockManager::handleEvent(QObject *watched, QEvent *event)
 {
+    if (event->type() == QEvent::FocusIn || event->type() == QEvent::MouseButtonPress) {
+        if (auto *dock = dockForWidget(qobject_cast<QWidget *>(watched))) {
+            setActiveDock(dock);
+        }
+    }
+    if (watched == activeDock || watched == mainWindow) {
+        switch (event->type()) {
+        case QEvent::Move:
+        case QEvent::Resize:
+        case QEvent::Show:
+        case QEvent::Hide:
+        case QEvent::LayoutRequest:
+            requestUpdateActiveFrame();
+            break;
+        default:
+            break;
+        }
+    }
     if (dockTabDragActive) {
         if (event->type() == QEvent::KeyPress
             && static_cast<QKeyEvent *>(event)->key() == Qt::Key_Escape) {
@@ -1820,6 +2139,7 @@ bool DockManager::handleEvent(QObject *watched, QEvent *event)
                 clearDockDrag();
                 dockDragTabBar = tabBar;
                 dockDragWidget = dockForDockTab(tabBar, index);
+                setActiveDock(dockDragWidget);
                 dockDragStartGlobalPos = mouseEventGlobalPos(mouseEvent);
             }
             break;
@@ -1857,6 +2177,7 @@ bool DockManager::handleEvent(QObject *watched, QEvent *event)
         case QEvent::Show:
         case QEvent::Resize:
         case QEvent::LayoutRequest: {
+            requestUpdateActiveFrame();
             QPointer<QTabBar> guardedTabBar(tabBar);
             QTimer::singleShot(0, this, [this, guardedTabBar]() {
                 if (guardedTabBar) {

src/core/DockManager.h

@@ -3,13 +3,14 @@
 
 #include <functional>
 
+#include <QByteArray>
 #include <QList>
 #include <QMap>
 #include <QObject>
 #include <QPoint>
 #include <QPointer>
 #include <QRect>
-#include <QSet>
+#include <QSize>
 #include <QString>
 #include <QStringList>
 
@@ -71,6 +72,11 @@ public:
     void updateDockTabBars();
     void requestUpdateTabBars();
     bool closeCurrentTab();
+    bool selectCurrentPanelTab(int index);
+    bool focusNextFrame(bool forward);
+    bool toggleCurrentPanelMaximized();
+    void restoreMaximizedPanel();
+    QByteArray saveState() const;
 
     bool handleEvent(QObject *watched, QEvent *event);
 
@@ -82,11 +88,14 @@ signals:
     void layoutMutated();
 
 private:
+    void setActiveDock(IaitoDockWidget *dock);
+    void requestUpdateActiveFrame();
+    void updateActiveFrame();
+    IaitoDockWidget *dockForWidget(QWidget *widget) const;
     void configureDockWidget(QDockWidget *dock);
     bool updateEmptyDockTabBar(QTabBar *tabBar);
     bool configureDockTabBar(QTabBar *tabBar);
     bool isMainDockTabBar(QTabBar *tabBar) const;
-    void stampTabBar(QTabBar *tabBar, QSet<IaitoDockWidget *> &claimed);
     void updateDockTabCloseButtons(QTabBar *tabBar, int hoveredIndex = -1);
     QToolButton *dockTabCloseButton(QTabBar *tabBar);
     void closeDockTab(QTabBar *tabBar, int index);
@@ -122,6 +131,14 @@ private:
     QList<IaitoDockWidget *> pluginDocks;
     QMap<QString, std::function<IaitoDockWidget *(MainWindow *)>> widgetTypeToConstructorMap;
 
+    QPointer<IaitoDockWidget> activeDock;
+    QList<QPointer<QWidget>> activeFrameBorders;
+    bool activeFrameUpdateScheduled = false;
+    QPointer<IaitoDockWidget> maximizedDock;
+    QPointer<QWidget> maximizedFocusWidget;
+    QByteArray maximizedLayoutState;
+    QSize maximizedDockMaximumSize;
+
     QPointer<QTabBar> dockDragTabBar;
     QPointer<QWidget> dockDragHandle;
     QPointer<IaitoDockWidget> dockDragWidget;

src/core/Iaito.cpp

@@ -21,6 +21,7 @@
 #include "common/R2Shims.h"
 #include "common/R2Task.h"
 #include "common/TempConfig.h"
+#include "common/TypeLayout.h"
 #include "core/Iaito.h"
 #include "plugins/PluginManager.h"
 
@@ -1320,6 +1321,24 @@ RVA IaitoCore::getOffset()
     return ADDRESS_OF(core_);
 }
 
+QString IaitoCore::getCommandAnnotation(RVA address, RVA *size)
+{
+    CORE_LOCK();
+    if (size) {
+        *size = 0;
+    }
+    RAnalMetaItem *item = r_meta_get_at(core->anal, address, R_META_TYPE_RUN, size);
+    return item && item->str ? QString::fromUtf8(item->str) : QString();
+}
+
+void IaitoCore::setCommandAnnotation(RVA address, RVA size, const QString &command)
+{
+    CORE_LOCK();
+    // Store the command verbatim without passing it through the r2 command parser.
+    r_meta_set(core->anal, R_META_TYPE_RUN, address, size, command.toUtf8().constData());
+    emit refreshCodeViews();
+}
+
 ut64 IaitoCore::math(const QString &expr)
 {
     CORE_LOCK();
@@ -1602,7 +1621,12 @@ RVA IaitoCore::getLastFunctionInstruction(RVA addr)
     if (!fcn) {
         return RVA_INVALID;
     }
+#if R2_ABIVERSION >= 168
+    RAnalBlock **lastBBPtr = RVecAnalBlockPtr_last(&fcn->bbs);
+    RAnalBlock *lastBB = lastBBPtr ? *lastBBPtr : nullptr;
+#else
     RAnalBlock *lastBB = (RAnalBlock *) r_list_last(fcn->bbs);
+#endif
     return lastBB ? lastBB->addr + r_anal_bb_offset_inst(lastBB, lastBB->ninstr - 1) : RVA_INVALID;
 }
 
@@ -3307,6 +3331,26 @@ QList<RMutaPluginDescription> IaitoCore::getRMutaPluginDescriptions()
     return ret;
 }
 
+QList<ExceptionRegion> IaitoCore::getExceptionRegions(RVA function)
+{
+    if (exceptionJsonSupport < 0) {
+        // Older iw implementations print flag commands even for iwj. Probe help
+        // once, without calling unsupported commands or depending on a new ABI.
+        const QString help = cmd("i?");
+        const QRegularExpression jsonHelp(QStringLiteral("\\biw\\[[^\\]\\n]*j"));
+        exceptionJsonSupport = help.contains(jsonHelp) ? 1 : 0;
+    }
+    if (!exceptionJsonSupport) {
+        return {};
+    }
+    const auto regions = ExceptionRegion::parse(cmdj("iwj").array());
+    if (function == RVA_INVALID || regions.isEmpty()) {
+        return regions;
+    }
+    const auto blocks = cmdj("afbj @ " + RAddressString(function)).array();
+    return ExceptionRegion::forBlocks(regions, blocks);
+}
+
 QList<FunctionDescription> IaitoCore::getAllFunctions()
 {
     CORE_LOCK();
@@ -3328,7 +3372,11 @@ QList<FunctionDescription> IaitoCore::getAllFunctions()
         function.nlocals = r_anal_var_count(core->anal, fcn, 'b', 0)
                            + r_anal_var_count(core->anal, fcn, 'r', 0)
                            + r_anal_var_count(core->anal, fcn, 's', 0);
+#if R2_ABIVERSION >= 168
+        function.nbbs = RVecAnalBlockPtr_length(&fcn->bbs);
+#else
         function.nbbs = r_list_length(fcn->bbs);
+#endif
         function.calltype = fcn->callconv ? QString::fromUtf8(fcn->callconv) : QString();
         function.name = fcn->name ? QString::fromUtf8(fcn->name) : QString();
         function.edges = r_anal_function_count_edges(fcn, nullptr);
@@ -3442,13 +3490,22 @@ QList<SymbolDescription> IaitoCore::getAllSymbols()
     if (core && core->bin && core->bin->cur && core->bin->cur->BO) {
         RVecRBinSymbol *symbols = r_bin_get_symbols_vec(core->bin);
         if (symbols) {
+            const char *language = r_config_get(core->config, "bin.lang");
+            const bool keepLibrary = r_config_get_b(core->config, "bin.demangle.pfxlib");
             RBinSymbol *bs;
             R_VEC_FOREACH(symbols, bs)
             {
-                QString type = QString(bs->bind) + " " + QString(bs->type);
                 SymbolDescription symbol;
                 symbol.vaddr = bs->vaddr;
-                symbol.name = QString(r_bin_name_tostring(bs->name));
+                const char *rawName = r_bin_name_tostring2(bs->name, 'o');
+                symbol.name = QString::fromUtf8(rawName);
+                symbol.demangledName = QString::fromUtf8(r_bin_name_tostring2(bs->name, 'd'));
+                if (symbol.demangledName == symbol.name) {
+                    char *demangled
+                        = r_bin_demangle(core->bin->cur, language, rawName, bs->vaddr, keepLibrary);
+                    symbol.demangledName = QString::fromUtf8(demangled);
+                    free(demangled);
+                }
                 symbol.bind = QString(bs->bind);
                 symbol.type = QString(bs->type);
                 ret << symbol;
@@ -3658,6 +3715,121 @@ QList<FlagDescription> IaitoCore::getAllFlags(QString flagspace)
     return ret;
 }
 
+QList<GlobalVariableDescription> IaitoCore::getAllGlobalVariables()
+{
+    CORE_LOCK();
+    QList<GlobalVariableDescription> variables;
+    const QJsonArray globals = cmdj("avgj").array();
+    for (const auto &value : globals) {
+        const QJsonObject object = value.toObject();
+        GlobalVariableDescription variable;
+        variable.name = object[RJsonKey::name].toString();
+        const auto flag = r_flag_get(core->flags, variable.name.toUtf8().constData());
+        if (!flag) {
+            continue;
+        }
+        // Qt JSON numbers cannot preserve every address above INT64_MAX.
+        variable.address = flag->addr;
+        variable.type = object[RJsonKey::type].toString();
+        variable.size = object[RJsonKey::size].toVariant().toULongLong();
+        variables.append(variable);
+    }
+    return variables;
+}
+
+bool IaitoCore::setGlobalVariable(
+    RVA address,
+    const QString &name,
+    const QString &type,
+    const QString &previousName,
+    QString *errorMessage)
+{
+    CORE_LOCK();
+    const auto fail = [errorMessage](const QString &message) {
+        if (errorMessage) {
+            *errorMessage = message;
+        }
+        return false;
+    };
+    const QByteArray nameBytes = name.toUtf8();
+    if (address == RVA_INVALID || name.contains(QChar::Null)
+        || !r_name_check(nameBytes.constData())) {
+        return fail(
+            tr("Enter a valid address and name (letters, digits, underscores, dots or colons)."));
+    }
+
+    RFlagItem *previous = nullptr;
+    if (!previousName.isEmpty()) {
+        previous = r_flag_get(core->flags, previousName.toUtf8().constData());
+        if (!previous || previous->addr != address || !previous->space
+            || QString::fromUtf8(previous->space->name) != QStringLiteral("globals")) {
+            return fail(tr("The global variable no longer exists. Refresh the list and try again."));
+        }
+    } else {
+        for (const auto &variable : getAllGlobalVariables()) {
+            if (variable.address == address) {
+                return fail(tr("A global variable is already registered at this address."));
+            }
+        }
+    }
+    if (const auto flag = r_flag_get(core->flags, nameBytes.constData())) {
+        if (flag != previous) {
+            return fail(tr("This name is already used by another flag or variable."));
+        }
+    }
+
+    if (type.isEmpty() || type.contains(QLatin1Char('\n')) || type.contains(QLatin1Char('\r'))
+        || type.contains(QChar::Null)) {
+        return fail(tr("Choose a type for the global variable."));
+    }
+
+    const QString currentName = previous ? previousName : name;
+    cmdRawAt(QStringLiteral("'avg %1 %2").arg(type, currentName), address);
+    const auto typedFlag = r_flag_get(core->flags, currentName.toUtf8().constData());
+    const auto meta = typedFlag ? r_flag_get_meta(core->flags, typedFlag->id) : nullptr;
+    if (!typedFlag || typedFlag->addr != address || !meta || QString::fromUtf8(meta->type) != type) {
+        return fail(
+            tr("Could not apply the selected type. Check that it exists and has a valid size."));
+    }
+    if (previous && name != previousName) {
+        cmdRaw("fs+globals");
+        cmdRaw(QStringLiteral("fr %1 %2").arg(previousName, name));
+        cmdRaw("fs-");
+    }
+
+    const auto flag = r_flag_get(core->flags, nameBytes.constData());
+    if (!flag || flag->addr != address) {
+        return fail(tr("Could not update the global variable."));
+    }
+    emit flagsChanged();
+    emit refreshCodeViews();
+    return true;
+}
+
+bool IaitoCore::deleteGlobalVariable(RVA address, const QString &name)
+{
+    CORE_LOCK();
+    const QByteArray nameBytes = name.toUtf8();
+    const auto flag = r_flag_get(core->flags, nameBytes.constData());
+    if (!flag || flag->addr != address || !flag->space
+        || QString::fromUtf8(flag->space->name) != QStringLiteral("globals")) {
+        return false;
+    }
+    // avg- removes shared metadata as well as a flag, so ambiguous addresses are unsafe.
+    for (const auto &variable : getAllGlobalVariables()) {
+        if (variable.address == address && variable.name != name) {
+            return false;
+        }
+    }
+    cmdRawAt("avg-", address);
+    if (r_flag_get(core->flags, nameBytes.constData())) {
+        return false;
+    }
+    emit flagsChanged();
+    emit refreshCodeViews();
+    return true;
+}
+
 QList<SectionDescription> IaitoCore::getAllSections()
 {
     CORE_LOCK();
@@ -3818,6 +3990,10 @@ QList<BinClassDescription> IaitoCore::getAllClassesFromBin()
             BinClassMethodDescription meth;
 
             meth.name = methObject[RJsonKey::name].toString();
+            meth.mangledName = methObject[QStringLiteral("rawname")].toString();
+            if (meth.name.isEmpty()) {
+                meth.name = meth.mangledName;
+            }
             meth.addr = methObject[RJsonKey::addr].toVariant().toULongLong();
 
             cls.methods << meth;
@@ -4744,8 +4920,10 @@ void IaitoCore::addFlag(RVA offset, QString name, RVA size, QString color, QStri
 {
     CORE_LOCK();
     name = sanitizeStringForCommand(name);
-    auto fi = r_flag_set(this->core()->flags, name.toStdString().c_str(), offset, size);
+    auto fi = r_flag_set(this->core()->flags, name.toStdString().c_str(), offset, 0);
     if (fi) {
+        // r_flag_set takes a 32-bit size, while flag ranges can span 64-bit sizes.
+        fi->size = size;
         if (!color.isEmpty()) {
             r_flag_item_set_color(this->core()->flags, fi, color.toStdString().c_str());
         }
@@ -4842,6 +5020,15 @@ void IaitoCore::loadPDB(const QString &file)
     cmdRaw0(QStringLiteral("idp ") + sanitizeStringForCommand(file));
 }
 
+static QString memoryPinsProjectPath(const QString &root, const QString &name)
+{
+    QString path = QDir(root).filePath(name);
+    if (QFileInfo(path).isFile()) {
+        path += QStringLiteral(".d");
+    }
+    return QDir(path).filePath(QStringLiteral("iaito-memory-pins.json"));
+}
+
 void IaitoCore::openProject(const QString &name)
 {
     if (!isProjectNameValid(name)) {
@@ -4849,9 +5036,61 @@ void IaitoCore::openProject(const QString &name)
         return;
     }
 
+    const QString pinsPath = memoryPinsProjectPath(getConfig("dir.projects"), name);
     bool ok = cmdRaw0(QStringLiteral("'P ") + name); //  + "@e:scr.interactive=false");
     if (ok) {
         notes = QString::fromUtf8(QByteArray::fromBase64(cmdRaw("Pnj").toUtf8()));
+        // Some r2 binary project versions omit types, type links and command metadata.
+        QFile file(pinsPath);
+        if (file.open(QIODevice::ReadOnly)) {
+            const QJsonObject saved = QJsonDocument::fromJson(file.readAll()).object();
+            if (saved.value("version").toInt() == 1) {
+                {
+                    CORE_LOCK();
+                    const QJsonObject types = saved.value("types").toObject();
+                    for (auto it = types.begin(); it != types.end(); ++it) {
+                        const QByteArray key = it.key().toUtf8();
+                        if (it.value().isString()
+                            && !sdb_const_get(core->anal->sdb_types, key.constData(), 0)) {
+                            sdb_set(
+                                core->anal->sdb_types,
+                                key.constData(),
+                                it.value().toString().toUtf8().constData(),
+                                0);
+                        }
+                    }
+                }
+                TypeLayout layout;
+                layout.load(cmdRaw("tk"), getConfigi("asm.bits") / 8);
+                const auto existing = layout.links();
+                const QStringList names = layout.names();
+                CORE_LOCK();
+                for (const QJsonValue &entry : saved.value("links").toArray()) {
+                    const QJsonObject link = entry.toObject();
+                    bool valid = false;
+                    const RVA address = link.value("address").toString().toULongLong(&valid, 16);
+                    const QString type = link.value("type").toString();
+                    if (valid && names.contains(type) && !existing.contains(address)) {
+                        r_type_set_link(core->anal->sdb_types, type.toUtf8().constData(), address);
+                    }
+                }
+                for (const QJsonValue &entry : saved.value("commands").toArray()) {
+                    const QJsonObject pin = entry.toObject();
+                    bool validAddress = false;
+                    bool validSize = false;
+                    const RVA address
+                        = pin.value("address").toString().toULongLong(&validAddress, 16);
+                    const RVA size = pin.value("size").toString().toULongLong(&validSize, 16);
+                    const QString command = pin.value("command").toString();
+                    if (validAddress && validSize && size && size - 1 <= RVA_MAX - address
+                        && !command.isEmpty()
+                        && !r_meta_get_at(core->anal, address, R_META_TYPE_RUN, nullptr)) {
+                        r_meta_set(
+                            core->anal, R_META_TYPE_RUN, address, size, command.toUtf8().constData());
+                    }
+                }
+            }
+        }
     } else {
         QMessageBox::critical(
             nullptr, tr("Error"), tr("Cannot open project. See console for details"));
@@ -4870,13 +5109,58 @@ void IaitoCore::saveProject(const QString &name)
     }
 
     Core()->setConfig("scr.interactive", false);
-    const bool ok = cmdRaw0(QStringLiteral("'Ps ") + name.trimmed());
+    bool ok = cmdRaw0(QStringLiteral("'Ps ") + name.trimmed());
+    if (ok) {
+        TypeLayout layout;
+        const QString database = cmdRaw("tk");
+        layout.load(database, getConfigi("asm.bits") / 8);
+        QJsonArray entries;
+        const auto links = layout.links();
+        for (auto it = links.cbegin(); it != links.cend(); ++it) {
+            entries.append(
+                QJsonObject{{"address", QString::number(it.key(), 16)}, {"type", it.value()}});
+        }
+        QJsonObject types;
+        const QStringList names = layout.names();
+        for (const QString &line : database.split(QLatin1Char('\n'))) {
+            const int separator = line.indexOf(QLatin1Char('='));
+            const QString key = line.left(separator);
+            if (separator > 0
+                && (names.contains(key) || key.startsWith("type.") || key.startsWith("struct.")
+                    || key.startsWith("union.") || key.startsWith("enum.")
+                    || key.startsWith("typedef."))) {
+                types.insert(key, line.mid(separator + 1));
+            }
+        }
+        QJsonArray commands;
+        static const QRegularExpression commandPin(
+            QStringLiteral("^Cr\\s+\\d+\\s+(0x[0-9a-fA-F]+)\\s+#"));
+        for (const QString &line : cmdRaw("Cr*").split(QLatin1Char('\n'))) {
+            const auto match = commandPin.match(line);
+            if (match.hasMatch()) {
+                const RVA address = match.captured(1).toULongLong(nullptr, 16);
+                RVA size = 0;
+                const QString command = getCommandAnnotation(address, &size);
+                commands.append(
+                    QJsonObject{
+                        {"address", QString::number(address, 16)},
+                        {"size", QString::number(size, 16)},
+                        {"command", command}});
+            }
+        }
+        QSaveFile file(memoryPinsProjectPath(getConfig("dir.projects"), name.trimmed()));
+        const QByteArray data
+            = QJsonDocument(
+                  QJsonObject{
+                      {"version", 1}, {"links", entries}, {"types", types}, {"commands", commands}})
+                  .toJson();
+        ok = file.open(QIODevice::WriteOnly) && file.write(data) == data.size() && file.commit();
+    }
     if (!ok) {
         QMessageBox::critical(
             nullptr,
             tr("Error"),
-            tr("Cannot save project. Ensure the project name doesnt have any "
-               "special or uppercase character"));
+            tr("Cannot save the project or its memory pins. See console for details."));
     }
 #if 0
     cmdRaw(QStringLiteral("Pnj %1").arg(QString(notes.toUtf8().toBase64())));

src/core/Iaito.h

@@ -4,6 +4,7 @@
 #define MONOTHREAD 1
 
 #include "common/BasicInstructionHighlighter.h"
+#include "common/ExceptionInfo.h"
 #include "core/IaitoCommon.h"
 #include "core/IaitoDescriptions.h"
 
@@ -464,6 +465,7 @@ public:
     void suspendDebug();
 
 private:
+    int exceptionJsonSupport = -1;
     void finishStopDebug();
 
 public:
@@ -553,6 +555,8 @@ public:
     void loadPDB(const QString &file);
 
     QByteArray ioRead(RVA addr, int len);
+    QString getCommandAnnotation(RVA address, RVA *size = nullptr);
+    void setCommandAnnotation(RVA address, RVA size, const QString &command);
 
     QList<RVA> getSeekHistory();
 
@@ -580,6 +584,7 @@ public:
     QList<RDebugPluginDescription> getRDebugPluginDescriptions();
     QList<RMutaPluginDescription> getRMutaPluginDescriptions();
     QList<FunctionDescription> getAllFunctions();
+    QList<ExceptionRegion> getExceptionRegions(RVA function = RVA_INVALID);
     QList<ImportDescription> getAllImports();
     QList<ExportDescription> getAllExports();
     QList<SymbolDescription> getAllSymbols();
@@ -590,6 +595,14 @@ public:
     QList<StringDescription> getAllStrings();
     QList<FlagspaceDescription> getAllFlagspaces();
     QList<FlagDescription> getAllFlags(QString flagspace = QString());
+    QList<GlobalVariableDescription> getAllGlobalVariables();
+    bool setGlobalVariable(
+        RVA address,
+        const QString &name,
+        const QString &type,
+        const QString &previousName = QString(),
+        QString *errorMessage = nullptr);
+    bool deleteGlobalVariable(RVA address, const QString &name);
     QList<SectionDescription> getAllSections();
     QList<SegmentDescription> getAllSegments();
     QList<EntrypointDescription> getAllEntrypoint();

src/core/IaitoDescriptions.h

@@ -98,6 +98,7 @@ struct SymbolDescription
     QString bind;
     QString type;
     QString name;
+    QString demangledName;
 };
 
 struct CommentDescription
@@ -137,6 +138,14 @@ struct FlagDescription
     QString realname;
 };
 
+struct GlobalVariableDescription
+{
+    RVA address = RVA_INVALID;
+    RVA size = 0;
+    QString name;
+    QString type;
+};
+
 struct SectionDescription
 {
     RVA vaddr = 0;
@@ -264,6 +273,7 @@ struct BinClassBaseClassDescription
 struct BinClassMethodDescription
 {
     QString name;
+    QString mangledName;
     RVA addr = RVA_INVALID;
     st64 vtableOffset = -1;
 };
@@ -425,6 +435,7 @@ Q_DECLARE_METATYPE(RelocDescription)
 Q_DECLARE_METATYPE(StringDescription)
 Q_DECLARE_METATYPE(FlagspaceDescription)
 Q_DECLARE_METATYPE(FlagDescription)
+Q_DECLARE_METATYPE(GlobalVariableDescription)
 Q_DECLARE_METATYPE(XrefDescription)
 Q_DECLARE_METATYPE(EntrypointDescription)
 Q_DECLARE_METATYPE(RBinPluginDescription)

src/core/MainWindow.cpp

@@ -48,6 +48,7 @@
 #include "widgets/ConsoleWidget.h"
 #include "widgets/CustomCommandWidget.h"
 #include "widgets/Dashboard.h"
+#include "widgets/DataAnalysisWidget.h"
 #include "widgets/DebugActions.h"
 #include "widgets/DecompilerWidget.h"
 #include "widgets/DisassemblerGraphView.h"
@@ -58,9 +59,11 @@
 #include "widgets/FilesystemWidget.h"
 #include "widgets/FlagsWidget.h"
 #include "widgets/FunctionsWidget.h"
+#include "widgets/GlobalVariablesWidget.h"
 #include "widgets/GraphView.h"
 #include "widgets/GraphWidget.h"
 #include "widgets/HeadersWidget.h"
+#include "widgets/HexPatWidget.h"
 #include "widgets/HexdumpWidget.h"
 #include "widgets/ImportsWidget.h"
 #include "widgets/InterfacesWidget.h"
@@ -1072,6 +1075,34 @@ void MainWindow::initUI()
         }
     });
 
+    auto *maximizePanelAction = new QAction(tr("Maximize/restore current panel"), this);
+    maximizePanelAction->setAutoRepeat(false);
+    ShortcutMgr()->bindAction("global.maximizePanel", maximizePanelAction);
+    ui->menuWindowLayout->insertAction(ui->actionDefault, maximizePanelAction);
+    connect(maximizePanelAction, &QAction::triggered, m_dockManager, [this]() {
+        m_dockManager->toggleCurrentPanelMaximized();
+    });
+
+    for (int index = 0; index < 5; ++index) {
+        auto *shortcut = ShortcutMgr()->registerShortcut(
+            QStringLiteral("global.selectPanelTab%1").arg(index + 1), this);
+        shortcut->setAutoRepeat(false);
+        connect(shortcut, &QShortcut::activated, m_dockManager, [this, index]() {
+            m_dockManager->selectCurrentPanelTab(index);
+        });
+    }
+
+    auto *nextFrameShortcut = ShortcutMgr()->registerShortcut("global.focusNextFrame", this);
+    nextFrameShortcut->setAutoRepeat(false);
+    connect(nextFrameShortcut, &QShortcut::activated, m_dockManager, [this]() {
+        m_dockManager->focusNextFrame(true);
+    });
+    auto *previousFrameShortcut = ShortcutMgr()->registerShortcut("global.focusPreviousFrame", this);
+    previousFrameShortcut->setAutoRepeat(false);
+    connect(previousFrameShortcut, &QShortcut::activated, m_dockManager, [this]() {
+        m_dockManager->focusNextFrame(false);
+    });
+
     connect(ui->actionZoomIn, &QAction::triggered, this, &MainWindow::onZoomIn);
     connect(ui->actionZoomOut, &QAction::triggered, this, &MainWindow::onZoomOut);
     connect(ui->actionZoomReset, &QAction::triggered, this, &MainWindow::onZoomReset);
@@ -1151,6 +1182,14 @@ void MainWindow::initUI()
         addDockWidget(Qt::DockWidgetArea::TopDockWidgetArea, r2aiDock);
         m_dockManager->addPluginDock(r2aiDock);
     }
+    {
+        auto *hexPatDock = new HexPatWidget(this);
+        addWidget(hexPatDock);
+        ui->menuTools->insertAction(ui->actionStart_Web_Server, hexPatDock->toggleViewAction());
+        addDockWidget(Qt::DockWidgetArea::TopDockWidgetArea, hexPatDock);
+        m_dockManager->addPluginDock(hexPatDock);
+        connect(ui->menuTools, &QMenu::aboutToShow, hexPatDock, &HexPatWidget::updateAvailability);
+    }
 
     // Check if plugins are loaded and display tooltips accordingly
     ui->menuWindows->setToolTipsVisible(true);
@@ -1208,6 +1247,7 @@ void MainWindow::initUI()
     connectMenuStatusTips(ui->menuEdit);
     connectMenuStatusTips(ui->menuCode);
     connectMenuStatusTips(ui->menuAnalysis);
+    connectMenuStatusTips(ui->menuData);
     connectMenuStatusTips(ui->menuTools);
     connectMenuStatusTips(ui->menuPlugins);
 
@@ -1543,12 +1583,12 @@ void MainWindow::initDocks()
     QList<IaitoDockWidget *> ioDocks
         = {filesDock = new FilesWidget(this),
            binariesDock = new BinariesWidget(this),
+           filesystemDock = new FilesystemWidget(this),
            mapsDock = new MapsWidget(this)};
     QList<IaitoDockWidget *> infoDocks = {
         classesDock = new ClassesWidget(this),
         entrypointDock = new EntrypointWidget(this),
         exportsDock = new ExportsWidget(this),
-        flagsDock = new FlagsWidget(this),
         headersDock = new HeadersWidget(this),
         importsDock = new ImportsWidget(this),
         interfacesDock = new InterfacesWidget(this),
@@ -1578,8 +1618,20 @@ void MainWindow::initDocks()
         r2GraphDock = new R2GraphWidget(this),
         callGraphDock = new CallGraphWidget(this, false),
         globalCallGraphDock = new CallGraphWidget(this, true),
+    };
+    QList<IaitoDockWidget *> dataDocks = {
+        flagsDock = new FlagsWidget(this),
+#if R2_ABIVERSION >= 154
+        // avgj and C type metadata require post-6.2.4 radare2.
+        globalVariablesDock = new GlobalVariablesWidget(this),
+#endif
+        dataAnalysisDock = new DataAnalysisWidget(this),
         zoomDock = new ZoomWidget(this),
     };
+    dataAnalysisDock->toggleViewAction()->setText(tr("Analysis"));
+    connect(dataAnalysisDock, &QWidget::windowTitleChanged, this, [this]() {
+        dataAnalysisDock->toggleViewAction()->setText(tr("Analysis"));
+    });
 
     auto makeActionList = [this](QList<IaitoDockWidget *> docks) {
         QList<QAction *> result;
@@ -1599,6 +1651,7 @@ void MainWindow::initDocks()
     ui->menuCode->addSeparator();
     ui->menuCode->addActions(makeActionList(codeDocks));
     ui->menuAnalysis->addActions(makeActionList(analysisDocks));
+    ui->menuData->addActions(makeActionList(dataDocks));
     QList<IaitoDockWidget *> windowDocks2 = {
         consoleDock,
     };
@@ -1612,19 +1665,17 @@ void MainWindow::initDocks()
     ui->menuView->insertSeparator(ui->menuZoom->menuAction());
     ui->menuAddInfoWidgets->addActions(makeActionList(infoDocks));
     ui->menuAddIoWidgets->addActions(makeActionList(ioDocks));
-    QAction *actionFilesystem = new QAction("Filesystem", this);
-    connect(actionFilesystem, &QAction::triggered, this, [this]() {
-        if (!filesystemDock) {
-            filesystemDock = new FilesystemWidget(this);
-            addExtraWidget(filesystemDock);
-        }
+    QAction *actionSourceFiles = new QAction(tr("Source Files"), this);
+    connect(actionSourceFiles, &QAction::triggered, this, [this]() {
         filesystemDock->show();
+        filesystemDock->raise();
+        filesystemDock->showSourceFiles();
     });
-    ui->menuAddIoWidgets->addAction(actionFilesystem);
+    ui->menuCode->addAction(actionSourceFiles);
     ui->menuAddDebugWidgets->addActions(makeActionList(debugDocks));
 
     auto uniqueDocks = mainViewDocks + windowDocks2 + infoDocks + analysisDocks;
-    uniqueDocks += codeDocks + ioDocks + debugDocks;
+    uniqueDocks += codeDocks + ioDocks + debugDocks + dataDocks;
     uniqueDocks.append(overviewDock);
     for (auto dock : uniqueDocks) {
         if (dock) { // ignore nullptr used as separators
@@ -1678,6 +1729,7 @@ void MainWindow::applyTopLevelMenuIcons()
     setAppMenuIcon(this, ui->menuAddInfoWidgets, AppMenuIcon::Info, viewColor);
     setAppMenuIcon(this, ui->menuAddIoWidgets, AppMenuIcon::Storage, viewColor);
     setAppMenuIcon(this, ui->menuAnalysis, AppMenuIcon::Analysis, analysisColor);
+    setAppMenuIcon(this, ui->menuData, AppMenuIcon::Storage, viewColor);
     setAppMenuIcon(this, ui->menuAddAnother, AppMenuIcon::Extra, viewColor);
     setAppMenuIcon(this, ui->menuZoom, AppMenuIcon::ZoomIn, viewColor);
     setAppMenuIcon(this, ui->actionZoomIn, AppMenuIcon::ZoomIn, viewColor);
@@ -2433,6 +2485,10 @@ void MainWindow::restoreDocks()
     tabifyDockWidget(functionsDock, symbolsDock);
     tabifyDockWidget(functionsDock, importsDock);
     tabifyDockWidget(functionsDock, exportsDock);
+    if (globalVariablesDock) {
+        tabifyDockWidget(functionsDock, globalVariablesDock);
+        globalVariablesDock->hide();
+    }
 
     // main area
     tabifyDockWidget(dashboardDock, entrypointDock);
@@ -2460,6 +2516,8 @@ void MainWindow::restoreDocks()
     filesDock->hide();
     binariesDock->hide();
     tabifyDockWidget(dashboardDock, zoomDock);
+    tabifyDockWidget(dashboardDock, dataAnalysisDock);
+    dataAnalysisDock->hide();
     for (const auto &it : m_dockManager->docks()) {
         // Check whether or not current widgets is graph, hexdump or disasm
         if (isExtraMemoryWidget(it)) {
@@ -2538,7 +2596,8 @@ void MainWindow::showMemoryWidget(MemoryWidgetType type)
     for (auto &dock : m_dockManager->docks()) {
         if (auto memoryWidget = qobject_cast<MemoryDockWidget *>(dock)) {
             if (memoryWidget->getType() == type && memoryWidget->getSeekable()->isSynchronized()) {
-                memoryWidget->tryRaiseMemoryWidget();
+                // Explicit view requests should also open an empty graph.
+                memoryWidget->raiseMemoryWidget();
                 return;
             }
         }
@@ -2547,6 +2606,11 @@ void MainWindow::showMemoryWidget(MemoryWidgetType type)
     memoryDockWidget->raiseMemoryWidget();
 }
 
+void MainWindow::showDataAnalysis(RVA start, RVA end)
+{
+    dataAnalysisDock->showRange(start, end);
+}
+
 void MainWindow::gotoOffset(const QString &offset)
 {
     ut64 address;
@@ -2590,6 +2654,16 @@ QMenu *MainWindow::createShowInMenu(QWidget *parent, RVA address, AddressTypeHin
             }
             QAction *action = new QAction(memoryWidget->windowTitle(), menu);
             connect(action, &QAction::triggered, this, [memoryWidget, address]() {
+                if (auto *analysis = qobject_cast<DataAnalysisWidget *>(memoryWidget)) {
+                    if (Core()->hasAddressRangeSelection()
+                        && Core()->getAddressRangeSelectionStart() <= address
+                        && address <= Core()->getAddressRangeSelectionEnd()) {
+                        analysis->showRange(
+                            Core()->getAddressRangeSelectionStart(),
+                            Core()->getAddressRangeSelectionEnd());
+                        return;
+                    }
+                }
                 memoryWidget->getSeekable()->seek(address);
                 memoryWidget->raiseMemoryWidget();
             });
@@ -2717,12 +2791,37 @@ void MainWindow::initBackForwardMenu()
 
 void MainWindow::updateHistoryMenu(QMenu *menu, bool redo)
 {
+    QPointer<IaitoSeekable> seekable = navigationSeekable();
+    if (seekable && !seekable->isSynchronized()) {
+        menu->clear();
+        int steps = 0;
+        for (RVA address : seekable->localHistory(redo)) {
+            const QString label = steps == 0
+                                      ? tr("Current position (%1)").arg(RAddressString(address))
+                                      : RAddressString(address);
+            QAction *action = menu->addAction(label);
+            action->setEnabled(steps != 0);
+            connect(action, &QAction::triggered, menu, [seekable, steps, redo]() {
+                if (!seekable) {
+                    return;
+                }
+                for (int i = 0; i < steps; ++i) {
+                    if (redo) {
+                        seekable->seekNext();
+                    } else {
+                        seekable->seekPrev();
+                    }
+                }
+            });
+            ++steps;
+        }
+        return;
+    }
     // Not too long so that whole screen doesn't get covered,
     // not too short so that reasonable length c++ names can be seen most of the
     // time
     const int MAX_NAME_LENGTH = 64;
 
-    auto hist = Core()->cmdj("sj");
     bool history = true;
     QList<QAction *> actions;
     for (auto item : Core()->cmdj("sj").array()) {
@@ -2752,6 +2851,7 @@ void MainWindow::updateHistoryMenu(QMenu *menu, bool redo)
                 QFont font;
                 font.setBold(true);
                 action->setFont(font);
+                action->setEnabled(false);
             }
         }
     }
@@ -2760,7 +2860,7 @@ void MainWindow::updateHistoryMenu(QMenu *menu, bool redo)
     }
     menu->clear();
     menu->addActions(actions);
-    int steps = 1;
+    int steps = 0;
     for (QAction *item : menu->actions()) {
         if (redo) {
             connect(item, &QAction::triggered, item, [steps]() {
@@ -3111,7 +3211,7 @@ IaitoLayout MainWindow::getViewLayout()
 {
     IaitoLayout layout;
     layout.geometry = saveGeometry();
-    layout.state = saveState();
+    layout.state = m_dockManager->saveState();
 
     for (auto dock : m_dockManager->docks()) {
         QVariantMap properties;
@@ -3134,6 +3234,7 @@ IaitoLayout MainWindow::getViewLayout(const QString &name)
 
 void MainWindow::setViewLayout(const IaitoLayout &layout)
 {
+    m_dockManager->restoreMaximizedPanel();
     bool isDefault = layout.state.isEmpty() || layout.geometry.isEmpty();
     bool isDebug = Core()->currentlyDebugging;
     bool wasAnimated = isAnimated();
@@ -3201,6 +3302,10 @@ void MainWindow::setViewLayout(const IaitoLayout &layout)
                           // other
         }
         for (auto dock : newDocks) {
+            // Data analysis scans are opt-in, including when upgrading a saved layout.
+            if (dock == dataAnalysisDock) {
+                continue;
+            }
             dockOnMainArea(dock);
             // Show any new docks by default.
             // Showing new builtin docks helps discovering features added in
@@ -3505,12 +3610,31 @@ void MainWindow::on_actionQuit_triggered()
 
 void MainWindow::on_actionBackward_triggered()
 {
-    core->seekPrev();
+    if (auto *seekable = navigationSeekable()) {
+        seekable->seekPrev();
+    } else {
+        core->seekPrev();
+    }
 }
 
 void MainWindow::on_actionForward_triggered()
 {
-    core->seekNext();
+    if (auto *seekable = navigationSeekable()) {
+        seekable->seekNext();
+    } else {
+        core->seekNext();
+    }
+}
+
+IaitoSeekable *MainWindow::navigationSeekable(QWidget *origin) const
+{
+    for (QWidget *widget = origin ? origin : QApplication::focusWidget(); widget;
+         widget = widget->parentWidget()) {
+        if (auto *dock = qobject_cast<AddressableDockWidget *>(widget)) {
+            return dock->getSeekable();
+        }
+    }
+    return navigationDock && navigationDock->isVisible() ? navigationDock->getSeekable() : nullptr;
 }
 
 void MainWindow::on_actionDisasAdd_comment_triggered()
@@ -4109,10 +4233,10 @@ void MainWindow::mousePressEvent(QMouseEvent *event)
 {
     switch (event->button()) {
     case Qt::BackButton:
-        core->seekPrev();
+        on_actionBackward_triggered();
         break;
     case Qt::ForwardButton:
-        core->seekNext();
+        on_actionForward_triggered();
         break;
     default:
         break;
@@ -4142,6 +4266,15 @@ static bool isTextInputFocused()
 
 bool MainWindow::eventFilter(QObject *watched, QEvent *event)
 {
+    if (event->type() == QEvent::FocusIn) {
+        for (QWidget *widget = qobject_cast<QWidget *>(watched); widget;
+             widget = widget->parentWidget()) {
+            if (auto *dock = qobject_cast<AddressableDockWidget *>(widget)) {
+                navigationDock = dock;
+                break;
+            }
+        }
+    }
     if (m_dockManager && m_dockManager->handleEvent(watched, event)) {
         return true;
     }
@@ -4162,7 +4295,15 @@ bool MainWindow::eventFilter(QObject *watched, QEvent *event)
     if (event->type() == QEvent::MouseButtonPress) {
         QMouseEvent *mouseEvent = static_cast<QMouseEvent *>(event);
         if (mouseEvent->button() == Qt::ForwardButton || mouseEvent->button() == Qt::BackButton) {
-            mousePressEvent(mouseEvent);
+            if (auto *seekable = navigationSeekable(qobject_cast<QWidget *>(watched))) {
+                if (mouseEvent->button() == Qt::BackButton) {
+                    seekable->seekPrev();
+                } else {
+                    seekable->seekNext();
+                }
+            } else {
+                mousePressEvent(mouseEvent);
+            }
             return true;
         }
     }

src/core/MainWindow.h

@@ -35,6 +35,7 @@ class RelocsWidget;
 class CommentsWidget;
 class StringsWidget;
 class FlagsWidget;
+class GlobalVariablesWidget;
 class Dashboard;
 class QLineEdit;
 class QRubberBand;
@@ -66,6 +67,7 @@ class FilesWidget;
 class FilesystemWidget;
 class BinariesWidget;
 class ZoomWidget;
+class DataAnalysisWidget;
 class XrefsWidget;
 class RefsWidget;
 class CodeInfoWidget;
@@ -151,6 +153,7 @@ public:
     QString getUniqueObjectName(const QString &widgetType) const;
     void showMemoryWidget();
     void showMemoryWidget(MemoryWidgetType type);
+    void showDataAnalysis(RVA start, RVA end);
     void gotoOffset(const QString &offset);
     enum class AddressTypeHint { Function, Data, Unknown };
     QMenu *createShowInMenu(
@@ -340,6 +343,7 @@ private:
     CommentsWidget *commentsDock = nullptr;
     StringsWidget *stringsDock = nullptr;
     FlagsWidget *flagsDock = nullptr;
+    GlobalVariablesWidget *globalVariablesDock = nullptr;
     Dashboard *dashboardDock = nullptr;
     SdbWidget *sdbDock = nullptr;
     SectionsWidget *sectionsDock = nullptr;
@@ -366,6 +370,7 @@ private:
     CallGraphWidget *callGraphDock = nullptr;
     CallGraphWidget *globalCallGraphDock = nullptr;
     ZoomWidget *zoomDock = nullptr;
+    DataAnalysisWidget *dataAnalysisDock = nullptr;
     XrefsWidget *xrefsDock = nullptr;
     RefsWidget *refsDock = nullptr;
     CodeInfoWidget *codeInfoDock = nullptr;
@@ -415,6 +420,7 @@ private:
      * @param redo set to false for undo history, true for redo.
      */
     void updateHistoryMenu(QMenu *menu, bool redo = false);
+    IaitoSeekable *navigationSeekable(QWidget *origin = nullptr) const;
     void updateSaveProjectAction();
     void updateWriteUndoRedoActions();
     void rebuildRecentScriptsMenu();
@@ -445,6 +451,7 @@ private:
 
     MemoryDockWidget *lastSyncMemoryWidget = nullptr;
     MemoryDockWidget *lastMemoryWidget = nullptr;
+    QPointer<AddressableDockWidget> navigationDock;
     int functionDockWidthToRestore = 0;
 
     // True when the main window UI has been fully initialized and it's safe to

src/core/MainWindow.ui

@@ -130,9 +130,15 @@
       <string>Analysis</string>
      </property>
     </widget>
+    <widget class="QMenu" name="menuData">
+     <property name="title">
+      <string>Data</string>
+     </property>
+    </widget>
     <addaction name="actionHighlight"/>
     <addaction name="separator"/>
     <addaction name="menuAnalysis"/>
+    <addaction name="menuData"/>
     <addaction name="menuAddInfoWidgets"/>
     <addaction name="menuAddIoWidgets"/>
     <addaction name="separator"/>

src/dialogs/FlagDialog.cpp

@@ -3,13 +3,12 @@
 #include <QAction>
 #include <QColor>
 #include <QColorDialog>
-#include <QEvent>
 #include <QMenu>
 
 #include "core/Iaito.h"
 #include <QAbstractButton>
-#include <QIntValidator>
 #include <QPushButton>
+#include <QRegularExpressionValidator>
 
 // Forwarding constructor: default flag size when only offset & parent provided
 FlagDialog::FlagDialog(RVA offset, QWidget *parent)
@@ -38,15 +37,14 @@ FlagDialog::FlagDialog(RVA offset, ut64 defaultSize, QWidget *parent)
     connect(ui->colorEdit, &QLineEdit::textChanged, this, [this](const QString &color) {
         ui->colorPreview->setStyleSheet(QStringLiteral("background-color: %1;").arg(color));
     });
-    RFlagItem *flag = r_flag_get_i(Core()->core()->flags, offset);
+    RFlagItem *flag = r_flag_get_in(Core()->core()->flags, offset);
     if (flag) {
         flagName = QString(flag->name);
         flagOffset = flag->addr;
     }
 
-    auto size_validator = new QIntValidator(ui->sizeEdit);
-    size_validator->setBottom(1);
-    ui->sizeEdit->setValidator(size_validator);
+    ui->sizeEdit->setValidator(new QRegularExpressionValidator(
+        QRegularExpression(QStringLiteral("[0-9]{1,20}")), ui->sizeEdit));
     // Pre-fill size field: use defaultSize for new flags, override with existing for edits
     ui->sizeEdit->setText(QString::number(defaultSize));
     if (flag) {
@@ -61,15 +59,31 @@ FlagDialog::FlagDialog(RVA offset, ut64 defaultSize, QWidget *parent)
             }
         }
     }
-    // Enable color picker on color field
-    ui->colorEdit->installEventFilter(this);
+    connect(ui->colorButton, &QPushButton::clicked, this, [this]() {
+        QColor color
+            = QColorDialog::getColor(QColor(ui->colorEdit->text()), this, tr("Select flag color"));
+        if (color.isValid()) {
+            ui->colorEdit->setText(color.name());
+        }
+    });
     if (flag) {
+        setWindowTitle(tr("Edit Flag"));
         ui->nameEdit->setText(flag->name);
         ui->labelAction->setText(tr("Edit flag at %1").arg(RAddressString(offset)));
     } else {
         ui->labelAction->setText(tr("Add flag at %1").arg(RAddressString(offset)));
     }
 
+    auto updateAcceptButton = [this]() {
+        bool validSize = false;
+        const ut64 size = ui->sizeEdit->text().toULongLong(&validSize);
+        ui->buttonBox->button(QDialogButtonBox::Ok)
+            ->setEnabled(!ui->nameEdit->text().trimmed().isEmpty() && validSize && size > 0);
+    };
+    connect(ui->nameEdit, &QLineEdit::textChanged, this, updateAcceptButton);
+    connect(ui->sizeEdit, &QLineEdit::textChanged, this, updateAcceptButton);
+    updateAcceptButton();
+
     // Connect slots for OK/Cancel
     connect(ui->buttonBox, &QDialogButtonBox::accepted, this, &FlagDialog::buttonBoxAccepted);
     connect(ui->buttonBox, &QDialogButtonBox::rejected, this, &FlagDialog::buttonBoxRejected);
@@ -88,34 +102,27 @@ FlagDialog::~FlagDialog() {}
 
 void FlagDialog::buttonBoxAccepted()
 {
-    RVA size = ui->sizeEdit->text().toULongLong();
-    QString name = ui->nameEdit->text();
+    bool validSize = false;
+    RVA size = ui->sizeEdit->text().toULongLong(&validSize);
+    QString name = ui->nameEdit->text().trimmed();
+    if (name.isEmpty() || !validSize || size == 0) {
+        return;
+    }
     QString color = ui->colorEdit->text();
     QString comment = ui->commentEdit->text();
     if (flagOffset != RVA_INVALID) {
-        // Existing flag: remove old flag by name
         Core()->delFlag(flagName);
-        // If a name is provided, recreate/update the flag with new attributes
-        if (!name.isEmpty()) {
-            Core()->addFlag(offset, name, size, color, comment);
-        }
-    } else {
-        // New flag: only add if name is provided
-        if (!name.isEmpty()) {
-            Core()->addFlag(offset, name, size, color, comment);
-        }
     }
-    close();
-    setResult(QDialog::Accepted);
+    Core()->addFlag(offset, name, size, color, comment);
+    accept();
 }
 
 void FlagDialog::buttonBoxRejected()
 {
-    close();
-    this->setResult(QDialog::Rejected);
+    reject();
 }
 
-std::pair<QAction *, QAction *> FlagDialog::addFlagMenuActions(
+std::tuple<QAction *, QAction *, QAction *> FlagDialog::addFlagMenuActions(
     QMenu *menu,
     QWidget *dialogParent,
     RVA addr,
@@ -145,19 +152,17 @@ std::pair<QAction *, QAction *> FlagDialog::addFlagMenuActions(
         }
     });
 
-    return {addAction, editAction};
-}
-
-bool FlagDialog::eventFilter(QObject *watched, QEvent *event)
-{
-    // Open color picker when clicking on color field
-    if (watched == ui->colorEdit && event->type() == QEvent::MouseButtonPress) {
-        QColor initial = QColor(ui->colorEdit->text());
-        QColor c = QColorDialog::getColor(initial, this, tr("Select flag color"));
-        if (c.isValid()) {
-            ui->colorEdit->setText(c.name());
+    QAction *deleteAction = menu->addAction(tr("Delete flag"));
+    deleteAction->setEnabled(existing != nullptr);
+    QObject::connect(deleteAction, &QAction::triggered, dialogParent, [addr, onChanged]() {
+        RFlagItem *flag = r_flag_get_in(Core()->core()->flags, addr);
+        if (flag) {
+            Core()->delFlag(QString::fromUtf8(flag->name));
+            if (onChanged) {
+                onChanged();
+            }
         }
-        return true;
-    }
-    return QDialog::eventFilter(watched, event);
+    });
+
+    return {addAction, editAction, deleteAction};
 }

src/dialogs/FlagDialog.h

@@ -4,7 +4,7 @@
 #include "core/IaitoCommon.h"
 #include <functional>
 #include <memory>
-#include <utility>
+#include <tuple>
 #include <QDialog>
 
 class QAction;
@@ -19,18 +19,14 @@ class FlagDialog : public QDialog
     Q_OBJECT
 
 public:
-    // offset: address of flag; defaultSize: initial size to pre-fill (number of bytes)
-    // Constructor: offset is address; defaultSize optional size for new flags
+    // defaultSize pre-fills the byte count for new flags.
     explicit FlagDialog(RVA offset, QWidget *parent = nullptr);
     explicit FlagDialog(RVA offset, ut64 defaultSize, QWidget *parent = nullptr);
     ~FlagDialog();
 
-    // Append an "Add flag..." / "Edit flag..." action pair to menu, wired to open
-    // FlagDialog at addr. Whichever action is inapplicable (add when a flag already
-    // exists, edit when none does) is created disabled. onChanged is invoked when
-    // the dialog is accepted (typically a refresh callback). Returns the two
-    // actions so callers can attach icons, etc.
-    static std::pair<QAction *, QAction *> addFlagMenuActions(
+    // Append add, edit and delete actions at addr, disabling inapplicable actions.
+    // onChanged is called after accepting the dialog or deleting the flag.
+    static std::tuple<QAction *, QAction *, QAction *> addFlagMenuActions(
         QMenu *menu,
         QWidget *dialogParent,
         RVA addr,
@@ -48,9 +44,6 @@ private:
     RVA offset;
     QString flagName;
     ut64 flagOffset;
-
-protected:
-    bool eventFilter(QObject *watched, QEvent *event) override;
 };
 
 #endif // FLAGDIALOG_H

src/dialogs/FlagDialog.ui

@@ -107,6 +107,13 @@
        <item>
         <widget class="QLineEdit" name="colorEdit"/>
        </item>
+       <item>
+        <widget class="QPushButton" name="colorButton">
+         <property name="text">
+          <string>Choose color...</string>
+         </property>
+        </widget>
+       </item>
        <item>
         <widget class="QFrame" name="colorPreview">
          <property name="minimumSize">

src/dialogs/PackageManagerDialog.cpp

@@ -48,15 +48,19 @@ PackageManagerDialog::PackageManagerDialog(QWidget *parent)
     : QDialog(parent)
     , m_process(new QProcess(this))
 {
-    setWindowTitle(tr("Package Manager"));
+    setWindowTitle(tr("Radare2 Package Manager (r2pm)"));
     resize(900, 600);
     auto *layout = new QVBoxLayout(this);
     auto *filterLayout = new QHBoxLayout();
     m_filterLineEdit = new QLineEdit(this);
     m_filterLineEdit->setPlaceholderText(tr("Filter packages..."));
     m_filterLineEdit->setMinimumHeight(32);
+    m_binaryPackagesCheckBox = new QCheckBox(tr("Binary packages"), this);
+    m_binaryPackagesCheckBox->setToolTip(
+        tr("Install ready-to-use packages, including scripts, without building from source."));
     m_showAllPlatformsCheckBox = new QCheckBox(tr("Show all platforms"), this);
     filterLayout->addWidget(m_filterLineEdit);
+    filterLayout->addWidget(m_binaryPackagesCheckBox);
     filterLayout->addWidget(m_showAllPlatformsCheckBox);
     layout->addLayout(filterLayout);
 
@@ -77,11 +81,15 @@ PackageManagerDialog::PackageManagerDialog(QWidget *parent)
 
     auto *buttonLayout = new QHBoxLayout();
     m_refreshButton = new QPushButton(tr("Refresh"), this);
-    m_installButton = new QPushButton(tr("Install"), this);
     m_uninstallButton = new QPushButton(tr("Uninstall"), this);
+    m_installButton = new QPushButton(tr("Install"), this);
+    for (auto *button : {m_refreshButton, m_uninstallButton, m_installButton}) {
+        button->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
+    }
     buttonLayout->addWidget(m_refreshButton);
-    buttonLayout->addWidget(m_installButton);
+    buttonLayout->addStretch();
     buttonLayout->addWidget(m_uninstallButton);
+    buttonLayout->addWidget(m_installButton);
     layout->addLayout(buttonLayout);
 
     m_logTextEdit = new QTextEdit(this);
@@ -90,7 +98,12 @@ PackageManagerDialog::PackageManagerDialog(QWidget *parent)
     layout->addWidget(m_logTextEdit);
 
     connect(m_filterLineEdit, &QLineEdit::textChanged, this, &PackageManagerDialog::filterPackages);
-    connect(m_showAllPlatformsCheckBox, &QCheckBox::toggled, this, [this]() { refreshPackages(); });
+    connect(m_binaryPackagesCheckBox, &QCheckBox::toggled, this, [this]() {
+        filterPackages(m_filterLineEdit->text());
+    });
+    connect(m_showAllPlatformsCheckBox, &QCheckBox::toggled, this, [this]() {
+        filterPackages(m_filterLineEdit->text());
+    });
     connect(m_refreshButton, &QPushButton::clicked, this, &PackageManagerDialog::refreshPackages);
     connect(m_installButton, &QPushButton::clicked, this, &PackageManagerDialog::installPackage);
     connect(m_uninstallButton, &QPushButton::clicked, this, &PackageManagerDialog::uninstallPackage);
@@ -128,21 +141,18 @@ void PackageManagerDialog::refreshPackages()
     // Then list packages
     QProcess listProc;
     QProcessEnvironment environment = QProcessEnvironment::systemEnvironment();
-    if (m_showAllPlatformsCheckBox->isChecked()) {
-        environment.insert("R2PM_PLATFORM", "any");
-    } else {
-        environment.remove("R2PM_PLATFORM");
-    }
+    environment.remove("R2PM_PLATFORM");
     listProc.setProcessEnvironment(environment);
-    listProc.start("r2pm", QStringList() << "-sj");
+    listProc.start("r2pm", QStringList() << "-Asj");
     if (!listProc.waitForFinished(30000)) {
-        QMessageBox::warning(this, tr("Error"), processError(listProc, tr("Failed to run r2pm -sj.")));
+        QMessageBox::warning(
+            this, tr("Error"), processError(listProc, tr("Failed to run r2pm -Asj.")));
         return;
     }
     QByteArray out = listProc.readAllStandardOutput();
     QJsonDocument doc = QJsonDocument::fromJson(out);
     if (!doc.isArray()) {
-        QMessageBox::warning(this, tr("Error"), tr("Invalid JSON output from r2pm -sj"));
+        QMessageBox::warning(this, tr("Error"), tr("Invalid JSON output from r2pm -Asj"));
         return;
     }
     QJsonArray array = doc.array();
@@ -158,19 +168,11 @@ void PackageManagerDialog::refreshPackages()
         if (desc == "") {
             desc = obj["desc"].toString();
         }
-        QStringList platformTags;
-        QStringList platformNames;
+        QStringList platforms;
         for (const QJsonValue &platformValue : obj["platforms"].toArray()) {
             const QString platform = platformValue.toString();
-            if (platform == "windows") {
-                platformTags << "w";
-                platformNames << tr("Windows");
-            } else if (platform == "unix") {
-                platformTags << "u";
-                platformNames << tr("Unix");
-            } else if (platform == "qjs") {
-                platformTags << "j";
-                platformNames << tr("QuickJS");
+            if (!platform.isEmpty()) {
+                platforms << platform;
             }
         }
         int row = m_tableWidget->rowCount();
@@ -180,11 +182,13 @@ void PackageManagerDialog::refreshPackages()
         itemInstalled->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable);
         m_tableWidget->setItem(row, 0, itemInstalled);
         QTableWidgetItem *itemName = new QTableWidgetItem(name);
+        itemName->setData(Qt::UserRole, obj["binary"].toBool());
         itemName->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable);
         m_tableWidget->setItem(row, 1, itemName);
-        QTableWidgetItem *itemPlatforms = new QTableWidgetItem(platformTags.join(' '));
-        itemPlatforms->setToolTip(platformNames.join(", "));
-        itemPlatforms->setTextAlignment(Qt::AlignCenter);
+        QTableWidgetItem *itemPlatforms = new QTableWidgetItem(platforms.join(' '));
+        itemPlatforms->setData(Qt::UserRole, obj["supported"].toBool(true));
+        itemPlatforms->setToolTip(platforms.join(", "));
+        itemPlatforms->setTextAlignment(Qt::AlignLeft | Qt::AlignVCenter);
         itemPlatforms->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable);
         m_tableWidget->setItem(row, 2, itemPlatforms);
         QTableWidgetItem *itemDesc = new QTableWidgetItem(desc);
@@ -216,29 +220,41 @@ void PackageManagerDialog::filterPackages(const QString &text)
                        || m_tableWidget->item(row, 1)->text().contains(text, Qt::CaseInsensitive)
                        || m_tableWidget->item(row, 2)->text().contains(text, Qt::CaseInsensitive)
                        || m_tableWidget->item(row, 3)->text().contains(text, Qt::CaseInsensitive);
+        if (m_binaryPackagesCheckBox->isChecked()) {
+            visible = visible && m_tableWidget->item(row, 1)->data(Qt::UserRole).toBool();
+        }
+        if (!m_showAllPlatformsCheckBox->isChecked()) {
+            visible = visible && m_tableWidget->item(row, 2)->data(Qt::UserRole).toBool();
+        }
         m_tableWidget->setRowHidden(row, !visible);
     }
+    if (m_tableWidget->currentRow() >= 0
+        && m_tableWidget->isRowHidden(m_tableWidget->currentRow())) {
+        m_tableWidget->setCurrentItem(nullptr);
+        m_tableWidget->clearSelection();
+    }
 }
 
 void PackageManagerDialog::installPackage()
 {
     if (m_process->state() != QProcess::NotRunning)
         return;
-    if (m_tableWidget->currentRow() < 0) {
+    if (m_tableWidget->currentRow() < 0 || m_tableWidget->isRowHidden(m_tableWidget->currentRow())) {
         QMessageBox::information(this, tr("Install"), tr("Please select a package to install."));
         return;
     }
     QString pkg = m_tableWidget->item(m_tableWidget->currentRow(), 1)->text();
     m_logTextEdit->clear();
     m_logTextEdit->setVisible(true);
-    m_process->start("r2pm", QStringList() << "-ci" << pkg);
+    const QString flags = m_binaryPackagesCheckBox->isChecked() ? "-bi" : "-ci";
+    m_process->start("r2pm", QStringList() << flags << pkg);
 }
 
 void PackageManagerDialog::uninstallPackage()
 {
     if (m_process->state() != QProcess::NotRunning)
         return;
-    if (m_tableWidget->currentRow() < 0) {
+    if (m_tableWidget->currentRow() < 0 || m_tableWidget->isRowHidden(m_tableWidget->currentRow())) {
         QMessageBox::information(this, tr("Uninstall"), tr("Please select a package to uninstall."));
         return;
     }

src/dialogs/PackageManagerDialog.h

@@ -43,6 +43,7 @@ private slots:
 
 private:
     QLineEdit *m_filterLineEdit;
+    QCheckBox *m_binaryPackagesCheckBox;
     QCheckBox *m_showAllPlatformsCheckBox;
     QTableWidget *m_tableWidget;
     QPushButton *m_refreshButton;

src/dialogs/XrefsDialog.ui

@@ -50,7 +50,7 @@
         </widget>
        </item>
        <item>
-        <widget class="AddressableItemList&lt;&gt;" name="toTreeWidget">
+        <widget class="AddressableItemView" name="toTreeWidget">
          <property name="frameShape">
           <enum>QFrame::Box</enum>
          </property>
@@ -73,7 +73,7 @@
         </widget>
        </item>
        <item>
-        <widget class="AddressableItemList&lt;&gt;" name="fromTreeWidget">
+        <widget class="AddressableItemView" name="fromTreeWidget">
          <property name="frameShape">
           <enum>QFrame::Box</enum>
          </property>
@@ -142,7 +142,7 @@
  </widget>
  <customwidgets>
   <customwidget>
-   <class>AddressableItemList&lt;&gt;</class>
+   <class>AddressableItemView</class>
    <extends>QTreeView</extends>
    <header>widgets/AddressableItemList.h</header>
   </customwidget>

src/img/icons/name-list.svg

@@ -0,0 +1,6 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24">
+ <g fill="none" stroke="#888" stroke-width="1.8" stroke-linecap="round">
+  <path d="M9 5h11M9 12h11M9 19h11"/>
+  <path d="M4 5h.5M4 12h.5M4 19h.5" stroke-width="3"/>
+ </g>
+</svg>

src/img/icons/name-tree.svg

@@ -0,0 +1,6 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24">
+ <g fill="none" stroke="#888" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round">
+  <path d="M5 5v14m0-7h5m-5 7h5M10 5h9m-5 7h5m-5 7h5"/>
+  <rect x="3" y="3" width="4" height="4" fill="#888" stroke="none"/>
+ </g>
+</svg>

src/menus/AddressableItemContextMenu.cpp

@@ -210,6 +210,9 @@ void AddressableItemContextMenu::onActionAddComment()
 
 void AddressableItemContextMenu::aboutToShowSlot()
 {
+    if (!hasTarget) {
+        return;
+    }
     if (actionShowInMenu->menu()) {
         actionShowInMenu->menu()->deleteLater();
     }
@@ -225,6 +228,9 @@ void AddressableItemContextMenu::setHasTarget(bool hasTarget)
 {
     this->hasTarget = hasTarget;
     for (const auto &action : this->actions()) {
-        action->setEnabled(hasTarget);
+        // View options also apply to group rows and empty lists.
+        if (!action->property("addressIndependent").toBool()) {
+            action->setEnabled(hasTarget);
+        }
     }
 }

src/menus/ContextMenuIcons.h

@@ -0,0 +1,131 @@
+#ifndef CONTEXTMENUICONS_H
+#define CONTEXTMENUICONS_H
+
+#include <QAction>
+#include <QColor>
+#include <QIcon>
+#include <QPainter>
+#include <QPixmap>
+#include <QPolygonF>
+#include <QVector>
+#include <QWidget>
+
+namespace ContextMenuIcons {
+
+enum class Icon {
+    Copy,
+    Navigation,
+    XRefs,
+    Comment,
+    Rename,
+    Delete,
+    Edit,
+    View,
+    Breakpoint,
+    Debug,
+    Fold,
+    Collapse,
+    Expand,
+    Sync
+};
+
+inline void setIcon(const QWidget *widget, QAction *action, Icon icon, const QColor &color)
+{
+    const qreal ratio = widget->devicePixelRatioF();
+    const int size = 16;
+    QPixmap pixmap(size * ratio, size * ratio);
+    pixmap.setDevicePixelRatio(ratio);
+    pixmap.fill(Qt::transparent);
+
+    QPainter painter(&pixmap);
+    painter.setRenderHint(QPainter::Antialiasing);
+
+    QColor accent = color;
+    accent.setAlpha(205);
+    painter.setPen(QPen(accent, 1.8, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
+    painter.setBrush(Qt::NoBrush);
+
+    switch (icon) {
+    case Icon::Copy:
+        painter.drawRect(QRectF(5, 3.5, 7, 9));
+        painter.drawRect(QRectF(3, 5.5, 7, 7));
+        break;
+    case Icon::Navigation:
+        painter.drawLine(QPointF(4, 8), QPointF(11, 8));
+        painter.drawPolyline(
+            QPolygonF(QVector<QPointF>{QPointF(8, 5), QPointF(11, 8), QPointF(8, 11)}));
+        break;
+    case Icon::XRefs:
+        painter.drawEllipse(QPointF(5, 8), 2.0, 2.0);
+        painter.drawEllipse(QPointF(11, 5), 2.0, 2.0);
+        painter.drawEllipse(QPointF(11, 11), 2.0, 2.0);
+        painter.drawLine(QPointF(6.7, 7), QPointF(9.3, 5.8));
+        painter.drawLine(QPointF(6.7, 9), QPointF(9.3, 10.2));
+        break;
+    case Icon::Comment:
+        painter.drawRoundedRect(QRectF(3.5, 4, 9, 7), 1.5, 1.5);
+        painter.drawLine(QPointF(6, 11), QPointF(4.5, 13));
+        break;
+    case Icon::Rename:
+        painter.drawLine(QPointF(4, 12), QPointF(12, 4));
+        painter.drawLine(QPointF(10, 4), QPointF(12, 6));
+        painter.drawLine(QPointF(4, 12), QPointF(7, 11));
+        break;
+    case Icon::Delete:
+        painter.drawLine(QPointF(4, 5), QPointF(12, 5));
+        painter.drawLine(QPointF(6, 3.5), QPointF(10, 3.5));
+        painter.drawRoundedRect(QRectF(5, 6, 6, 7), 1.0, 1.0);
+        painter.drawLine(QPointF(7, 7.5), QPointF(7, 11.5));
+        painter.drawLine(QPointF(9, 7.5), QPointF(9, 11.5));
+        break;
+    case Icon::Edit:
+        painter.drawRect(QRectF(4, 4, 8, 8));
+        painter.drawLine(QPointF(6, 7), QPointF(10, 7));
+        painter.drawLine(QPointF(6, 9), QPointF(9, 9));
+        break;
+    case Icon::View:
+        painter.drawEllipse(QRectF(3, 5, 10, 6));
+        painter.drawEllipse(QPointF(8, 8), 1.8, 1.8);
+        break;
+    case Icon::Breakpoint:
+        painter.setBrush(accent);
+        painter.drawEllipse(QPointF(8, 8), 4.0, 4.0);
+        break;
+    case Icon::Debug:
+        painter.drawLine(QPointF(8, 3), QPointF(8, 13));
+        painter.drawLine(QPointF(4, 5), QPointF(12, 5));
+        painter.drawLine(QPointF(4, 11), QPointF(12, 11));
+        painter.drawRoundedRect(QRectF(5, 4, 6, 8), 1.5, 1.5);
+        break;
+    case Icon::Fold:
+        painter.drawPolyline(
+            QPolygonF(QVector<QPointF>{QPointF(4, 3), QPointF(8, 7), QPointF(12, 3)}));
+        painter.drawPolyline(
+            QPolygonF(QVector<QPointF>{QPointF(4, 13), QPointF(8, 9), QPointF(12, 13)}));
+        break;
+    case Icon::Collapse:
+    case Icon::Expand:
+        painter.drawRoundedRect(QRectF(3, 3, 10, 10), 1.5, 1.5);
+        painter.drawLine(QPointF(5.5, 8), QPointF(10.5, 8));
+        if (icon == Icon::Expand) {
+            painter.drawLine(QPointF(8, 5.5), QPointF(8, 10.5));
+        }
+        break;
+    case Icon::Sync:
+        painter.drawLine(QPointF(3, 5), QPointF(12, 5));
+        painter.drawPolyline(
+            QPolygonF(QVector<QPointF>{QPointF(10, 3), QPointF(12, 5), QPointF(10, 7)}));
+        painter.drawLine(QPointF(13, 11), QPointF(4, 11));
+        painter.drawPolyline(
+            QPolygonF(QVector<QPointF>{QPointF(6, 9), QPointF(4, 11), QPointF(6, 13)}));
+        break;
+    }
+
+    painter.end();
+    action->setIcon(QIcon(pixmap));
+    action->setIconVisibleInMenu(true);
+}
+
+} // namespace ContextMenuIcons
+
+#endif // CONTEXTMENUICONS_H

src/menus/DecompilerContextMenu.cpp

@@ -1,4 +1,5 @@
 #include "DecompilerContextMenu.h"
+#include "ContextMenuIcons.h"
 #include "MainWindow.h"
 #include "common/DeepLink.h"
 #include "common/ShortcutManager.h"
@@ -19,6 +20,7 @@ DecompilerContextMenu::DecompilerContextMenu(QWidget *parent, MainWindow *mainWi
     , curHighlightedWord(QString())
     , offset(0)
     , decompiledFunctionAddress(RVA_INVALID)
+    , firstOffsetInLine(RVA_INVALID)
     , isTogglingBreakpoints(false)
     , annotationHere(nullptr)
     , actionCopy(tr("Copy"), this)
@@ -33,7 +35,8 @@ DecompilerContextMenu::DecompilerContextMenu(QWidget *parent, MainWindow *mainWi
     , actionDeleteName(tr("Delete <name>"), this)
     , actionEditFunctionVariables(tr("Edit variable <name of variable>"), this)
     , actionXRefs(tr("Show X-Refs"), this)
-    , actionShowAddress(tr("Show address"), this)
+    , actionShowAddress(tr("Show addresses"), this)
+    , actionShowDisassembly(tr("Show disassembly"), this)
     , actionToggleBreakpoint(tr("Add/remove breakpoint"), this)
     , actionAdvancedBreakpoint(tr("Advanced breakpoint"), this)
     , breakpointsInLineMenu(new QMenu(this))
@@ -54,6 +57,7 @@ DecompilerContextMenu::DecompilerContextMenu(QWidget *parent, MainWindow *mainWi
 
     setActionXRefs();
     setActionShowAddress();
+    setActionShowDisassembly();
 
     setActionEditFunctionVariables();
 
@@ -64,6 +68,36 @@ DecompilerContextMenu::DecompilerContextMenu(QWidget *parent, MainWindow *mainWi
     // actionEditAnnotation.setVisible(true);
     // actionEditAnnotation.setEnabled(true);
 
+    using ContextMenuIcons::Icon;
+    using ContextMenuIcons::setIcon;
+    const QColor copyColor(56, 142, 60);
+    const QColor navigationColor(103, 80, 164);
+    const QColor annotationColor(67, 160, 71);
+    const QColor analysisColor(0, 137, 190);
+    const QColor viewColor(191, 128, 32);
+    const QColor debugColor(216, 88, 64);
+
+    setIcon(this, &actionCopy, Icon::Copy, copyColor);
+    setIcon(this, &actionCopyInstructionAddress, Icon::Copy, copyColor);
+    setIcon(this, &actionCopyReferenceAddress, Icon::Copy, copyColor);
+    setIcon(this, &actionCopyDeepLink, Icon::Copy, copyColor);
+    setIcon(this, &actionShowInSubmenu, Icon::Navigation, navigationColor);
+    setIcon(this, &actionAddComment, Icon::Comment, annotationColor);
+    setIcon(this, &actionDeleteComment, Icon::Delete, debugColor);
+    setIcon(this, &actionRenameThingHere, Icon::Rename, annotationColor);
+    setIcon(this, &actionDeleteName, Icon::Delete, debugColor);
+    setIcon(this, &actionEditFunctionVariables, Icon::Edit, analysisColor);
+    setIcon(this, &actionXRefs, Icon::XRefs, analysisColor);
+    setIcon(this, &actionShowAddress, Icon::View, viewColor);
+    setIcon(this, &actionShowDisassembly, Icon::View, viewColor);
+    setIcon(this, breakpointMenu->menuAction(), Icon::Breakpoint, debugColor);
+    setIcon(this, &actionToggleBreakpoint, Icon::Breakpoint, debugColor);
+    setIcon(this, &actionAdvancedBreakpoint, Icon::Edit, debugColor);
+    setIcon(this, debugMenu->menuAction(), Icon::Debug, debugColor);
+    setIcon(this, &actionContinueUntil, Icon::Navigation, debugColor);
+    setIcon(this, &actionSetPC, Icon::Debug, debugColor);
+    setIcon(this, &actionEditAnnotation, Icon::Edit, annotationColor);
+
     setShortcutContextInActions(this);
 
     connect(
@@ -100,6 +134,8 @@ void DecompilerContextMenu::setDecompiledFunctionAddress(RVA functionAddr)
 void DecompilerContextMenu::setFirstOffsetInLine(RVA firstOffset)
 {
     firstOffsetInLine = firstOffset;
+    actionAddComment.setEnabled(firstOffset != RVA_INVALID);
+    actionDeleteComment.setEnabled(firstOffset != RVA_INVALID);
 }
 
 RVA DecompilerContextMenu::getFirstOffsetInLine()
@@ -117,6 +153,8 @@ void DecompilerContextMenu::setupBreakpointsInLineMenu()
     breakpointsInLineMenu->clear();
     for (auto curOffset : this->availableBreakpoints) {
         QAction *action = breakpointsInLineMenu->addAction(RAddressString(curOffset));
+        action->setIcon(actionToggleBreakpoint.icon());
+        action->setIconVisibleInMenu(true);
         connect(action, &QAction::triggered, this, [this, curOffset] {
             BreakpointsDialog::editBreakpoint(Core()->getBreakpointAt(curOffset), this);
         });
@@ -163,14 +201,15 @@ void DecompilerContextMenu::aboutToHideSlot()
 void DecompilerContextMenu::aboutToShowSlot()
 {
     DecompilerWidget *decompilerWidget = qobject_cast<DecompilerWidget *>(parentWidget());
-    actionShowAddress.setText(
-        decompilerWidget && decompilerWidget->isAddressColumnVisible() ? tr("Hide address")
-                                                                       : tr("Show address"));
+    actionShowAddress.setChecked(decompilerWidget && decompilerWidget->isAddressColumnVisible());
+    actionShowDisassembly.setChecked(
+        decompilerWidget && decompilerWidget->isDisassemblyColumnVisible());
 
+    actionAddComment.setVisible(true);
+    actionAddComment.setEnabled(firstOffsetInLine != RVA_INVALID);
     if (this->firstOffsetInLine != RVA_MAX) {
         actionShowInSubmenu.setVisible(true);
         QString comment = Core()->cmdRawAt("CC.", this->firstOffsetInLine);
-        actionAddComment.setVisible(true);
         if (comment.isEmpty()) {
             actionDeleteComment.setVisible(false);
             actionAddComment.setText(tr("Add Comment"));
@@ -180,7 +219,7 @@ void DecompilerContextMenu::aboutToShowSlot()
         }
     } else {
         actionShowInSubmenu.setVisible(false);
-        actionAddComment.setVisible(false);
+        actionAddComment.setText(tr("Add Comment"));
         actionDeleteComment.setVisible(false);
     }
 
@@ -310,6 +349,8 @@ void DecompilerContextMenu::setActionShowInSubmenu()
 
 void DecompilerContextMenu::setActionAddComment()
 {
+    actionAddComment.setObjectName(QStringLiteral("actionAddComment"));
+    actionAddComment.setEnabled(firstOffsetInLine != RVA_INVALID);
     connect(
         &actionAddComment,
         &QAction::triggered,
@@ -321,6 +362,7 @@ void DecompilerContextMenu::setActionAddComment()
 
 void DecompilerContextMenu::setActionDeleteComment()
 {
+    actionDeleteComment.setObjectName(QStringLiteral("actionDeleteComment"));
     connect(
         &actionDeleteComment,
         &QAction::triggered,
@@ -338,15 +380,32 @@ void DecompilerContextMenu::setActionXRefs()
 
 void DecompilerContextMenu::setActionShowAddress()
 {
-    connect(&actionShowAddress, &QAction::triggered, this, [this]() {
+    actionShowAddress.setObjectName(QStringLiteral("actionShowAddresses"));
+    actionShowAddress.setCheckable(true);
+    actionShowAddress.setToolTip(tr("Show the address associated with each decompiled line."));
+    connect(&actionShowAddress, &QAction::triggered, this, [this](bool checked) {
         DecompilerWidget *decompilerWidget = qobject_cast<DecompilerWidget *>(parentWidget());
         if (decompilerWidget) {
-            decompilerWidget->setAddressColumnVisible(!decompilerWidget->isAddressColumnVisible());
+            decompilerWidget->setAddressColumnVisible(checked);
         }
     });
     addAction(&actionShowAddress);
 }
 
+void DecompilerContextMenu::setActionShowDisassembly()
+{
+    actionShowDisassembly.setObjectName(QStringLiteral("actionShowDisassembly"));
+    actionShowDisassembly.setCheckable(true);
+    actionShowDisassembly.setToolTip(tr("Show disassembly beside the decompiled code, like pdca."));
+    connect(&actionShowDisassembly, &QAction::triggered, this, [this](bool checked) {
+        DecompilerWidget *decompilerWidget = qobject_cast<DecompilerWidget *>(parentWidget());
+        if (decompilerWidget) {
+            decompilerWidget->setDisassemblyColumnVisible(checked);
+        }
+    });
+    addAction(&actionShowDisassembly);
+}
+
 void DecompilerContextMenu::setActionRenameThingHere()
 {
     ShortcutMgr()->bindAction("decompiler.rename", &actionRenameThingHere);
@@ -435,12 +494,21 @@ void DecompilerContextMenu::actionCopyInstructionAddressTriggered()
 
 void DecompilerContextMenu::actionEditAnnotationTriggered()
 {
-    QString os = Core()->cmdRaw("anos");
-    QString *s = openTextEditDialog(os, this);
-    if (s != nullptr) {
-        Core()->cmdRaw(QStringLiteral("ano=base64:%1").arg(QString(s->toLocal8Bit().toBase64())));
-        this->mainWindow->refreshAll();
+    const RVA functionAddress = decompiledFunctionAddress;
+    if (functionAddress == RVA_INVALID) {
+        return;
     }
+    TextEditDialog dialog(Core()->cmdRawAt("anos", functionAddress), this);
+    if (dialog.exec() != QDialog::Accepted) {
+        return;
+    }
+    const QString text = dialog.getEditedText();
+    const QString command
+        = text.isEmpty()
+              ? QStringLiteral("ano-")
+              : QStringLiteral("ano=base64:%1").arg(QString::fromLatin1(text.toUtf8().toBase64()));
+    Core()->cmdRawAt(command, functionAddress);
+    this->mainWindow->refreshAll();
 }
 
 void DecompilerContextMenu::actionCopyReferenceAddressTriggered()
@@ -456,11 +524,20 @@ void DecompilerContextMenu::actionCopyDeepLinkTriggered()
 
 void DecompilerContextMenu::actionAddCommentTriggered()
 {
-    CommentsDialog::addOrEditComment(this->firstOffsetInLine, this);
+    if (firstOffsetInLine == RVA_INVALID) {
+        return;
+    }
+    CommentsDialog::addOrEditComment(this->firstOffsetInLine, parentWidget());
+    if (auto *widget = qobject_cast<DecompilerWidget *>(parentWidget())) {
+        widget->setFocus(Qt::OtherFocusReason);
+    }
 }
 
 void DecompilerContextMenu::actionDeleteCommentTriggered()
 {
+    if (firstOffsetInLine == RVA_INVALID) {
+        return;
+    }
     Core()->delComment(this->firstOffsetInLine);
 }
 
@@ -676,6 +753,8 @@ void DecompilerContextMenu::updateTargetMenuActions()
                 RAddressString(annotationHere->reference.offset));
         }
         auto action = new QAction(name, this);
+        action->setIcon(actionShowInSubmenu.icon());
+        action->setIconVisibleInMenu(true);
         showTargetMenuActions.append(action);
         action->setMenu(menu);
         insertActions(copySeparator, showTargetMenuActions);

src/menus/DecompilerContextMenu.h

@@ -105,6 +105,7 @@ private:
 
     QAction actionXRefs;
     QAction actionShowAddress;
+    QAction actionShowDisassembly;
 
     QMenu *breakpointMenu;
     QAction actionToggleBreakpoint;
@@ -137,6 +138,7 @@ private:
 
     void setActionXRefs();
     void setActionShowAddress();
+    void setActionShowDisassembly();
 
     void setActionRenameThingHere();
     void setActionDeleteName();

src/menus/DisassemblyContextMenu.cpp

@@ -52,8 +52,7 @@ DisassemblyContextMenu::DisassemblyContextMenu(QWidget *parent, MainWindow *main
     , actionAnalyzeFunction(this)
     , actionEditFunction(this)
     , actionRename(this)
-    , actionAddFlag(this)
-    , actionEditFlag(this)
+    , actionFlag(this)
     , actionAddFlagAtRef(this)
     , actionEditFlagAtRef(this)
     , actionSetFunctionVarTypes(this)
@@ -170,6 +169,15 @@ void DisassemblyContextMenu::registerActionShortcuts()
     ShortcutMgr()->bindAction("disasm.undefineFunction", &actionDeleteFunction);
 }
 
+void DisassemblyContextMenu::registerFlagShortcut()
+{
+    ShortcutMgr()->bindAction("disasm.flag", &actionFlag);
+    actionFlag.setShortcutContext(Qt::WidgetWithChildrenShortcut);
+#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
+    actionFlag.setShortcutVisibleInContextMenu(true);
+#endif
+}
+
 DisassemblyContextMenu::~DisassemblyContextMenu() {}
 
 QIcon DisassemblyContextMenu::makeMenuIcon(MenuIcon icon, const QColor &color) const
@@ -644,25 +652,25 @@ void DisassemblyContextMenu::addFlagActions()
     flagMenu = addMenu(tr("Flag"));
     setMenuIcon(flagMenu, MenuIcon::Tag, flagColor);
 
-    initAction(&actionAddFlag, tr("Add flag here"), nullptr);
-    setActionIcon(&actionAddFlag, MenuIcon::Tag, flagColor);
-    connect(&actionAddFlag, &QAction::triggered, this, [this]() {
-        FlagDialog dlg(offset, 1, this->mainWindow);
+    initAction(&actionFlag, tr("Add / edit flag here"));
+    setActionIcon(&actionFlag, MenuIcon::Tag, flagColor);
+    connect(&actionFlag, &QAction::triggered, this, [this]() {
+        emit flagAboutToChange();
+        const bool hasSelection = selectionStart != RVA_INVALID && selectionByteCount > 0;
+        FlagDialog
+            dlg(hasSelection ? selectionStart : offset,
+                hasSelection ? static_cast<ut64>(selectionByteCount) : 1,
+                mainWindow);
         if (dlg.exec() == QDialog::Accepted && this->mainWindow) {
             this->mainWindow->refreshAll();
         }
     });
-    flagMenu->addAction(&actionAddFlag);
+    flagMenu->addAction(&actionFlag);
 
-    initAction(&actionEditFlag, tr("Edit flag here"), nullptr);
-    setActionIcon(&actionEditFlag, MenuIcon::Tag, flagColor);
-    connect(&actionEditFlag, &QAction::triggered, this, [this]() {
-        FlagDialog dlg(offset, 1, this->mainWindow);
-        if (dlg.exec() == QDialog::Accepted && this->mainWindow) {
-            this->mainWindow->refreshAll();
-        }
-    });
-    flagMenu->addAction(&actionEditFlag);
+    initAction(&actionDeleteFlag, tr("Delete flag"), SLOT(on_actionDeleteFlag_triggered()));
+    setActionIcon(&actionDeleteFlag, MenuIcon::Tag, QColor(117, 117, 117));
+    flagMenu->addAction(&actionDeleteFlag);
+    flagMenu->addSeparator();
 
     initAction(&actionAddFlagAtRef, tr("Add flag at reference"), nullptr);
     setActionIcon(&actionAddFlagAtRef, MenuIcon::Tag, flagColor);
@@ -694,11 +702,12 @@ void DisassemblyContextMenu::addFlagActions()
 void DisassemblyContextMenu::refreshFlagActions()
 {
     RFlag *rf = Core()->core()->flags;
-    RFlagItem *here = rf ? r_flag_get_in(rf, offset) : nullptr;
-    actionAddFlag.setText(tr("Add flag at %1").arg(RAddressString(offset)));
-    actionAddFlag.setEnabled(here == nullptr);
-    actionEditFlag.setText(tr("Edit flag at %1").arg(RAddressString(offset)));
-    actionEditFlag.setEnabled(here != nullptr);
+    const RVA address = selectionStart != RVA_INVALID ? selectionStart : offset;
+    RFlagItem *here = rf ? r_flag_get_in(rf, address) : nullptr;
+    actionFlag.setText(
+        (here ? tr("Edit flag at %1") : tr("Add flag at %1")).arg(RAddressString(address)));
+    actionDeleteFlag.setText(tr("Delete flag at %1").arg(RAddressString(address)));
+    actionDeleteFlag.setEnabled(here != nullptr);
 
     ut64 ref = curHighlightedWord.isEmpty() ? 0 : Core()->num(curHighlightedWord);
     hasFlagRefAddr = (ref != 0 && ref != offset);
@@ -733,9 +742,6 @@ void DisassemblyContextMenu::addEditMenu()
     setActionIcon(&actionDeleteComment, MenuIcon::Comment, QColor(67, 160, 71));
     editMenu->addAction(&actionDeleteComment);
 
-    initAction(&actionDeleteFlag, tr("Delete flag"), SLOT(on_actionDeleteFlag_triggered()));
-    setActionIcon(&actionDeleteFlag, MenuIcon::Tag, QColor(117, 117, 117));
-    editMenu->addAction(&actionDeleteFlag);
     editMenu->addSeparator();
 
     initAction(&actionEditInstruction, tr("Instruction"), SLOT(on_actionEditInstruction_triggered()));
@@ -878,7 +884,6 @@ void DisassemblyContextMenu::buildRenameMenu(ThingUsedHere *tuh)
         return;
     }
 
-    actionDeleteFlag.setVisible(false);
     // TODO: use switch
     if (tuh->type == ThingUsedHere::Type::Address) {
         // Adding a flag at a referenced address is handled by the dedicated
@@ -902,7 +907,6 @@ void DisassemblyContextMenu::buildRenameMenu(ThingUsedHere *tuh)
         doRenameInfo.name = tuh->name;
         doRenameInfo.addr = tuh->offset;
         actionRename.setText(tr("Rename flag \"%1\" (used here)").arg(doRenameInfo.name));
-        actionDeleteFlag.setVisible(true);
     } else {
         qWarning() << "Unexpected renaming type";
         doRenameAction = RENAME_DO_NOTHING;
@@ -1403,12 +1407,21 @@ void DisassemblyContextMenu::on_actionAnalyzeFunction_triggered()
 
 void DisassemblyContextMenu::on_actionEditAnnotation_triggered()
 {
-    QString os = Core()->cmdRaw("anos");
-    QString *s = openTextEditDialog(os, this);
-    if (s != nullptr) {
-        Core()->cmdRaw(QStringLiteral("ano=base64:%1").arg(QString(s->toLocal8Bit().toBase64())));
-        this->mainWindow->refreshAll();
+    const RVA functionAddress = Core()->getFunctionStart(offset);
+    if (functionAddress == RVA_INVALID) {
+        return;
     }
+    TextEditDialog dialog(Core()->cmdRawAt("anos", functionAddress), this);
+    if (dialog.exec() != QDialog::Accepted) {
+        return;
+    }
+    const QString text = dialog.getEditedText();
+    const QString command
+        = text.isEmpty()
+              ? QStringLiteral("ano-")
+              : QStringLiteral("ano=base64:%1").arg(QString::fromLatin1(text.toUtf8().toBase64()));
+    Core()->cmdRawAt(command, functionAddress);
+    this->mainWindow->refreshAll();
 }
 
 void DisassemblyContextMenu::on_actionRename_triggered()
@@ -1625,7 +1638,12 @@ void DisassemblyContextMenu::on_actionDeleteComment_triggered()
 
 void DisassemblyContextMenu::on_actionDeleteFlag_triggered()
 {
-    Core()->delFlag(offset);
+    emit flagAboutToChange();
+    const RVA address = selectionStart != RVA_INVALID ? selectionStart : offset;
+    RFlagItem *flag = r_flag_get_in(Core()->core()->flags, address);
+    if (flag) {
+        Core()->delFlag(QString::fromUtf8(flag->name));
+    }
 }
 
 void DisassemblyContextMenu::on_actionDeleteFunction_triggered()

src/menus/DisassemblyContextMenu.h

@@ -19,7 +19,11 @@ public:
     DisassemblyContextMenu(QWidget *parent, MainWindow *mainWindow);
     ~DisassemblyContextMenu();
 
+    // The graph view shares this menu and uses F for branch navigation.
+    void registerFlagShortcut();
+
 signals:
+    void flagAboutToChange();
     void copy();
     /**
      * @brief Signal emitted to copy raw bytes of selected instructions
@@ -177,8 +181,7 @@ private:
     QAction actionAnalyzeFunction;
     QAction actionEditFunction;
     QAction actionRename;
-    QAction actionAddFlag;
-    QAction actionEditFlag;
+    QAction actionFlag;
     QAction actionAddFlagAtRef;
     QAction actionEditFlagAtRef;
     RVA flagRefAddr = 0;

src/org.radare.iaito.appdata.xml

@@ -42,6 +42,35 @@
     <name>radare</name>
   </developer>
   <releases>
+    <release version="6.2.6" date="2026-11-06">
+      <description>
+	      <p>Fix disasm lines glitch</p>
+	      <p>Colorize basic blocks in minigraph</p>
+	      <p>Toggle decompiler with tab and graph with space</p>
+	      <p>Decai decompiler options</p>
+	      <p>Global variable edition and navigation</p>
+	      <p>Filesystem browser</p>
+	      <p>Several bug fixes and optimizations</p>
+	      <p>Zoom panels with meta+enter</p>
+	      <p>Switch tabs with cmd+number</p>
+	      <p>Cycle dock frames with cmd+JK</p>
+	      <p>Hover indicators in disasm and decompile</p>
+	      <p>Per-view seek history fixes</p>
+	      <p>Folding braced blocks in decompiler</p>
+      </description>
+    </release>
+    <release version="6.2.4" date="2026-10-05">
+      <description>
+	      <p>Collapse sparse gaps in the hexdump</p>
+	      <p>TryCatch analysis via disasm and graph</p>
+	      <p>View symbols, class, imports as tree</p>
+	      <p>Compact large symbol names grouped by prefix</p>
+	      <p>Optimize listings filtering</p>
+	      <p>New advanced data analysis widget</p>
+	      <p>Hand cursor over clickable items in disasm</p>
+	      <p>Enable the bounded scrollbar by default</p>
+      </description>
+    </release>
     <release version="6.2.2" date="2026-09-06">
       <description>
 	      <p>Scrollbars in disasm and hexdump</p>

src/resources.qrc

@@ -100,6 +100,8 @@
         <file>img/icons/delete.svg</file>
         <file>img/icons/previous.svg</file>
         <file>img/icons/list.svg</file>
+        <file>img/icons/name-tree.svg</file>
+        <file>img/icons/name-list.svg</file>
         <file>img/icons/fork.svg</file>
         <file>img/icons/plugins.svg</file>
         <file>img/icons/light/plugins.svg</file>

src/themes/engine/Light.theme

@@ -25,8 +25,8 @@ spacing=6
 sliderGroove=4
 
 [palette]
-accent=#039be5
-accentText=#ffffff
+accent=#c6dff2
+accentText=#00162e
 background=#fafcfe
 border=#bdbdbd
 mutedText=#7d7d7d

src/widgets/AddressScrollBar.cpp

@@ -161,7 +161,8 @@ void AddressScrollBar::applyMode()
 void AddressScrollBar::applyRange()
 {
     const RVA span = rangeEnd - rangeStart;
-    unit = span > MaxSliderSpan ? (span + MaxSliderSpan - 1) / MaxSliderSpan : 1;
+    // Round up without overflowing when the range spans the full address space.
+    unit = span > MaxSliderSpan ? (span - 1) / MaxSliderSpan + 1 : 1;
     syncing = true;
     setRange(0, int(span / unit));
     setPageStep(qMax<int>(1, int(pageBytes / unit)));

src/widgets/AddressableDockWidget.cpp

@@ -4,7 +4,11 @@
 #include <QAction>
 #include <QContextMenuEvent>
 #include <QEvent>
+#include <QLabel>
 #include <QMenu>
+#include <QStyle>
+#include <QToolBar>
+#include <QVBoxLayout>
 
 AddressableDockWidget::AddressableDockWidget(MainWindow *parent)
     : IaitoDockWidget(parent)
@@ -19,9 +23,99 @@ AddressableDockWidget::AddressableDockWidget(MainWindow *parent)
     dockMenu = new QMenu(this);
     dockMenu->addAction(&syncAction);
 
+    connect(seekable, &IaitoSeekable::syncChanged, this, [this]() {
+        if (!seekable->isSynchronized()) {
+            setupSeekHistoryBar();
+        }
+        updateSeekHistoryBar();
+    });
+    connect(
+        seekable,
+        &IaitoSeekable::historyChanged,
+        this,
+        &AddressableDockWidget::updateSeekHistoryBar);
+    connect(
+        seekable,
+        &IaitoSeekable::seekableSeekChanged,
+        this,
+        &AddressableDockWidget::updateSeekHistoryBar);
+    connect(this, &QDockWidget::visibilityChanged, this, [this](bool visible) {
+        if (visible) {
+            setupSeekHistoryBar();
+        }
+    });
+
     setContextMenuPolicy(Qt::ContextMenuPolicy::DefaultContextMenu);
 }
 
+void AddressableDockWidget::setupSeekHistoryBar(bool alwaysVisible)
+{
+    historyBarAlwaysVisible |= alwaysVisible;
+    if (seekHistoryBar || !widget()) {
+        updateSeekHistoryBar();
+        return;
+    }
+    QWidget *contents = widget();
+    seekHistoryBar = new QToolBar(contents);
+    seekHistoryBar->setObjectName(QStringLiteral("seekHistoryBar"));
+    seekHistoryBar->setIconSize(QSize(16, 16));
+    seekHistoryBar->setMovable(false);
+    seekHistoryBar->setFloatable(false);
+    seekHistoryBar->setFocusPolicy(Qt::NoFocus);
+    seekBackAction
+        = seekHistoryBar->addAction(style()->standardIcon(QStyle::SP_ArrowBack), tr("Back"));
+    seekBackAction->setObjectName(QStringLiteral("seekBackAction"));
+    seekForwardAction
+        = seekHistoryBar->addAction(style()->standardIcon(QStyle::SP_ArrowForward), tr("Forward"));
+    seekForwardAction->setObjectName(QStringLiteral("seekForwardAction"));
+    connect(seekBackAction, &QAction::triggered, seekable, &IaitoSeekable::seekPrev);
+    connect(seekForwardAction, &QAction::triggered, seekable, &IaitoSeekable::seekNext);
+    for (QAction *action : {seekBackAction, seekForwardAction}) {
+        seekHistoryBar->widgetForAction(action)->setFocusPolicy(Qt::NoFocus);
+    }
+    seekAddressLabel = new QLabel(seekHistoryBar);
+    seekAddressLabel->setMargin(3);
+    seekHistoryBar->addWidget(seekAddressLabel);
+
+    if (auto *layout = qobject_cast<QVBoxLayout *>(contents->layout())) {
+        layout->insertWidget(0, seekHistoryBar);
+    } else {
+        // Graph-only docks have no content layout in which to insert the bar.
+        auto *container = new QWidget(this);
+        auto *containerLayout = new QVBoxLayout(container);
+        containerLayout->setContentsMargins(0, 0, 0, 0);
+        containerLayout->setSpacing(0);
+        containerLayout->addWidget(seekHistoryBar);
+        containerLayout->addWidget(contents);
+        setWidget(container);
+        contents->show();
+    }
+    updateSeekHistoryBar();
+}
+
+void AddressableDockWidget::setSeekHistoryBarEnabled(bool enabled)
+{
+    historyBarEnabled = enabled;
+    updateSeekHistoryBar();
+}
+
+void AddressableDockWidget::updateSeekHistoryBar()
+{
+    if (!seekHistoryBar) {
+        return;
+    }
+    const bool synced = seekable->isSynchronized();
+    seekHistoryBar->setVisible(historyBarEnabled && (historyBarAlwaysVisible || !synced));
+    seekBackAction->setEnabled(seekable->canSeekPrev());
+    seekForwardAction->setEnabled(seekable->canSeekNext());
+    seekBackAction->setToolTip(synced ? tr("Back in shared seek history") : tr("Back in this view"));
+    seekForwardAction->setToolTip(
+        synced ? tr("Forward in shared seek history") : tr("Forward in this view"));
+    seekAddressLabel->setText(RAddressString(seekable->getOffset()));
+    seekAddressLabel->setToolTip(
+        synced ? tr("Shared offset") : tr("Independent offset for this view"));
+}
+
 QVariantMap AddressableDockWidget::serializeViewProprties()
 {
     auto result = IaitoDockWidget::serializeViewProprties();

src/widgets/AddressableDockWidget.h

@@ -7,6 +7,8 @@
 #include <QAction>
 
 class IaitoSeekable;
+class QLabel;
+class QToolBar;
 
 class AddressableDockWidget : public IaitoDockWidget
 {
@@ -28,8 +30,21 @@ protected:
     QAction syncAction;
     QMenu *dockMenu = nullptr;
 
+    void setupSeekHistoryBar(bool alwaysVisible = false);
+    void setSeekHistoryBarEnabled(bool enabled);
+
     virtual QString getWindowTitle() const = 0;
     void contextMenuEvent(QContextMenuEvent *event) override;
+
+private:
+    QToolBar *seekHistoryBar = nullptr;
+    QLabel *seekAddressLabel = nullptr;
+    QAction *seekBackAction = nullptr;
+    QAction *seekForwardAction = nullptr;
+    bool historyBarAlwaysVisible = false;
+    bool historyBarEnabled = true;
+
+    void updateSeekHistoryBar();
 };
 
 #endif // ADDRESSABLE_DOCK_WIDGET_H

src/widgets/AddressableItemList.h

@@ -5,6 +5,7 @@
 #include <QAbstractItemModel>
 #include <QAbstractItemView>
 #include <QMenu>
+#include <QSet>
 #include <QSortFilterProxyModel>
 
 #include "IaitoDockWidget.h"
@@ -45,16 +46,42 @@ public:
     void setAddressModel(AddressableItemModelI *model)
     {
         this->addressableModel = model;
+        setModel(model ? model->asItemModel() : nullptr);
+    }
 
-        BaseListWidget::setModel(this->addressableModel->asItemModel());
+    void setModel(QAbstractItemModel *model) override
+    {
+        BaseListWidget::setModel(model);
+        if (this->selectionModel()) {
+            this->connect(
+                this->selectionModel(),
+                &QItemSelectionModel::currentChanged,
+                this,
+                &AddressableItemList<BaseListWidget>::onSelectedItemChanged);
+        }
+    }
 
-        this->connect(
-            this->selectionModel(),
-            &QItemSelectionModel::currentChanged,
-            this,
-            &AddressableItemList<BaseListWidget>::onSelectedItemChanged);
-        auto cast_model = dynamic_cast<QAbstractItemModel *>(model);
-        IaitoTreeView::setModel(cast_model);
+    RVA itemAddress(const QModelIndex &index) const
+    {
+        auto provider = addressProvider();
+        auto source = mapToProviderIndex(provider, index);
+        return source.isValid() ? provider->address(source) : RVA_INVALID;
+    }
+
+    QList<RVA> selectedAddresses() const
+    {
+        QList<RVA> result;
+        QSet<RVA> seen;
+        if (auto selection = this->selectionModel()) {
+            for (const auto &index : selection->selectedIndexes()) {
+                const RVA address = itemAddress(index);
+                if (address != RVA_INVALID && !seen.contains(address)) {
+                    seen.insert(address);
+                    result.append(address);
+                }
+            }
+        }
+        return result;
     }
 
     void setMainWindow(MainWindow *mainWindow)
@@ -76,21 +103,17 @@ public:
 protected:
     virtual void showItemContextMenu(const QPoint &pt)
     {
-        auto provider = addressProvider();
-        if (!provider) {
+        if (!itemContextMenu) {
             return;
         }
-        auto index = this->currentIndex();
-        if (index.isValid() && itemContextMenu) {
-            QModelIndex pIndex = mapToProviderIndex(provider, index);
-            if (!pIndex.isValid()) {
-                return;
-            }
-            auto offset = provider->address(pIndex);
-            auto name = provider->name(pIndex);
-            itemContextMenu->setTarget(offset, name);
-            itemContextMenu->exec(this->mapToGlobal(pt));
+        const auto index = this->indexAt(pt);
+        if (this->selectionModel()->isSelected(index)) {
+            this->selectionModel()->setCurrentIndex(index, QItemSelectionModel::NoUpdate);
+        } else {
+            this->setCurrentIndex(index);
         }
+        updateMenuFromItem(index);
+        itemContextMenu->exec(this->viewport()->mapToGlobal(pt));
     }
 
     virtual void onItemActivated(const QModelIndex &index)
@@ -107,18 +130,21 @@ protected:
             return;
         }
         auto offset = provider->address(pIndex);
-        Core()->seekAndShow(offset);
+        if (offset != RVA_INVALID) {
+            Core()->seekAndShow(offset);
+        }
     }
     virtual void onSelectedItemChanged(const QModelIndex &index) { updateMenuFromItem(index); }
     void updateMenuFromItem(const QModelIndex &index)
     {
         auto provider = addressProvider();
-        if (!provider) {
+        if (!provider || !itemContextMenu) {
             return;
         }
         if (index.isValid()) {
             QModelIndex pIndex = mapToProviderIndex(provider, index);
-            if (!pIndex.isValid()) {
+            if (!pIndex.isValid() || provider->address(pIndex) == RVA_INVALID) {
+                itemContextMenu->clearTarget();
                 return;
             }
             auto offset = provider->address(pIndex);
@@ -132,42 +158,21 @@ protected:
     // Handle 'j' and 'k' keys to navigate and seek without pressing Enter
     void keyPressEvent(QKeyEvent *event) override
     {
-        if (event->modifiers() == Qt::NoModifier) {
+        if (event->modifiers() == Qt::NoModifier
+            && (event->key() == Qt::Key_J || event->key() == Qt::Key_K)) {
             auto selModel = this->selectionModel();
-            const QModelIndex curr = selModel->currentIndex();
-            if (curr.isValid()) {
-                if (event->key() == Qt::Key_J) {
-                    // Move down
-                    const QModelIndex parent = curr.parent();
-                    const int total = this->model()->rowCount(parent);
-                    const int newRow = qMin(curr.row() + 1, total - 1);
-                    if (newRow != curr.row()) {
-                        const QModelIndex newIndex
-                            = this->model()->index(newRow, curr.column(), parent);
-                        selModel->setCurrentIndex(
-                            newIndex,
-                            QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows);
-                        this->scrollTo(newIndex);
-                        onItemActivated(newIndex);
-                        this->setFocus();
-                    }
-                    return;
-                } else if (event->key() == Qt::Key_K) {
-                    // Move up
-                    if (curr.row() > 0) {
-                        const QModelIndex parent = curr.parent();
-                        const int newRow = curr.row() - 1;
-                        const QModelIndex newIndex
-                            = this->model()->index(newRow, curr.column(), parent);
-                        selModel->setCurrentIndex(
-                            newIndex,
-                            QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows);
-                        this->scrollTo(newIndex);
-                        onItemActivated(newIndex);
-                        this->setFocus();
-                    }
-                    return;
+            auto tree = qobject_cast<QTreeView *>(this);
+            if (selModel && tree && this->currentIndex().isValid()) {
+                const auto next = event->key() == Qt::Key_J
+                                      ? tree->indexBelow(this->currentIndex())
+                                      : tree->indexAbove(this->currentIndex());
+                if (next.isValid()) {
+                    selModel->setCurrentIndex(
+                        next, QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows);
+                    this->scrollTo(next);
+                    onItemActivated(next);
                 }
+                return;
             }
         }
         BaseListWidget::keyPressEvent(event);
@@ -228,4 +233,6 @@ private:
     }
 };
 
+using AddressableItemView = AddressableItemList<>;
+
 #endif // ADDRESSABLE_ITEM_LIST_H

src/widgets/BreakpointWidget.ui

@@ -28,7 +28,7 @@
      <number>0</number>
     </property>
     <item>
-     <widget class="AddressableItemList&lt;&gt;" name="breakpointTreeView">
+     <widget class="AddressableItemView" name="breakpointTreeView">
       <property name="styleSheet">
        <string notr="true">IaitoTreeView::item
 {
@@ -80,7 +80,7 @@
  </widget>
  <customwidgets>
   <customwidget>
-   <class>AddressableItemList&lt;&gt;</class>
+   <class>AddressableItemView</class>
    <extends>QTreeView</extends>
    <header>widgets/AddressableItemList.h</header>
    <container>1</container>

src/widgets/ClassesWidget.cpp

@@ -1,5 +1,8 @@
 #include "ClassesWidget.h"
+#include "NameListView.h"
+#include "QuickFilterView.h"
 #include "common/Helpers.h"
+#include "common/NameListModel.h"
 #include "common/SvgIconEngine.h"
 #include "core/MainWindow.h"
 #include "dialogs/EditMethodDialog.h"
@@ -9,6 +12,29 @@
 #include <QList>
 #include <QMenu>
 #include <QMouseEvent>
+#include <QShortcut>
+
+RVA ClassesModel::address(const QModelIndex &index) const
+{
+    const auto offset = index.data(OffsetRole);
+    return offset.isValid() ? offset.value<RVA>() : RVA_INVALID;
+}
+
+QString ClassesModel::name(const QModelIndex &index) const
+{
+    const QString member = index.sibling(index.row(), NAME).data().toString();
+    if (!index.parent().isValid() || index.data(TypeRole).value<RowType>() == RowType::Base
+        || index.data(TypeRole).value<RowType>() == RowType::VTable) {
+        return member;
+    }
+    const QString owner = index.parent().data(NameRole).toString();
+    const QString separator = owner.endsWith(';')    ? QStringLiteral("->")
+                              : owner.contains("::") ? QStringLiteral("::")
+                              : owner.contains('/')  ? QStringLiteral("/")
+                              : owner.contains('.')  ? QStringLiteral(".")
+                                                     : QStringLiteral("::");
+    return member.startsWith(owner + separator) ? member : owner + separator + member;
+}
 
 QVariant ClassesModel::headerData(int section, Qt::Orientation, int role) const
 {
@@ -44,6 +70,9 @@ void BinClassesModel::setClasses(const QList<BinClassDescription> &classes)
 
 QModelIndex BinClassesModel::index(int row, int column, const QModelIndex &parent) const
 {
+    if (!hasIndex(row, column, parent)) {
+        return {};
+    }
     if (!parent.isValid()) {
         return createIndex(row, column,
                            (quintptr) 0); // root function nodes have id = 0
@@ -70,6 +99,9 @@ QModelIndex BinClassesModel::parent(const QModelIndex &index) const
 
 int BinClassesModel::rowCount(const QModelIndex &parent) const
 {
+    if (parent.isValid() && parent.column() != 0) {
+        return 0;
+    }
     if (!parent.isValid()) { // root
         return classes.count();
     }
@@ -89,6 +121,9 @@ int BinClassesModel::columnCount(const QModelIndex &) const
 
 QVariant BinClassesModel::data(const QModelIndex &index, int role) const
 {
+    if (!index.isValid()) {
+        return {};
+    }
     const BinClassDescription *cls;
     const BinClassMethodDescription *meth = nullptr;
     const BinClassFieldDescription *field = nullptr;
@@ -136,6 +171,15 @@ QVariant BinClassesModel::data(const QModelIndex &index, int role) const
             return QVariant::fromValue(meth->addr);
         case NameRole:
             return meth->name;
+        case MangledNameRole:
+            return meth->mangledName;
+        case NameListModel::NameToolTipRole:
+        case Qt::ToolTipRole:
+            if (!meth->mangledName.isEmpty() && meth->mangledName != meth->name) {
+                return tr("<qt><b>Name:</b> %1<br><b>Mangled:</b> %2</qt>")
+                    .arg(name(index).toHtmlEscaped(), meth->mangledName.toHtmlEscaped());
+            }
+            return QStringLiteral("<qt>%1</qt>").arg(name(index).toHtmlEscaped());
         case TypeRole:
             return QVariant::fromValue(RowType::Method);
         default:
@@ -354,6 +398,9 @@ const QVector<AnalClassesModel::Attribute> &AnalClassesModel::getAttrs(const QSt
 
 QModelIndex AnalClassesModel::index(int row, int column, const QModelIndex &parent) const
 {
+    if (!hasIndex(row, column, parent)) {
+        return {};
+    }
     if (!parent.isValid()) {
         return createIndex(row, column,
                            (quintptr) 0); // root function nodes have id = 0
@@ -380,6 +427,9 @@ QModelIndex AnalClassesModel::parent(const QModelIndex &index) const
 
 int AnalClassesModel::rowCount(const QModelIndex &parent) const
 {
+    if (parent.isValid() && parent.column() != 0) {
+        return 0;
+    }
     if (!parent.isValid()) { // root
         return classes.count();
     }
@@ -393,7 +443,8 @@ int AnalClassesModel::rowCount(const QModelIndex &parent) const
 
 bool AnalClassesModel::hasChildren(const QModelIndex &parent) const
 {
-    return !parent.isValid() || !parent.parent().isValid();
+    return !parent.isValid() ? !classes.isEmpty()
+                             : parent.column() == 0 && parent.internalId() == 0;
 }
 
 int AnalClassesModel::columnCount(const QModelIndex &) const
@@ -403,6 +454,9 @@ int AnalClassesModel::columnCount(const QModelIndex &) const
 
 QVariant AnalClassesModel::data(const QModelIndex &index, int role) const
 {
+    if (!index.isValid()) {
+        return {};
+    }
     if (index.internalId() == 0) { // class row
         if (index.row() >= classes.count()) {
             return QVariant();
@@ -533,13 +587,29 @@ QVariant AnalClassesModel::data(const QModelIndex &index, int role) const
 }
 
 ClassesSortFilterProxyModel::ClassesSortFilterProxyModel(QObject *parent)
-    : QSortFilterProxyModel(parent)
-{}
+    : AddressableFilterProxyModel(nullptr, parent)
+{
+    setFilterCaseSensitivity(Qt::CaseInsensitive);
+}
 
 bool ClassesSortFilterProxyModel::filterAcceptsRow(int row, const QModelIndex &parent) const
 {
     QModelIndex index = sourceModel()->index(row, 0, parent);
-    return index.data(ClassesModel::NameRole).toString().contains(FILTER_REGEX);
+    const auto matches = [this](const QModelIndex &item) {
+        return item.data(ClassesModel::NameRole).toString().contains(FILTER_REGEX)
+               || item.data(ClassesModel::MangledNameRole).toString().contains(FILTER_REGEX);
+    };
+    if (filterAcceptsType(row, parent)
+        && (matches(index) || (parent.isValid() && matches(parent)))) {
+        return true;
+    }
+    // Keep the owning class when a member matches, but hide unrelated members.
+    for (int child = 0; child < sourceModel()->rowCount(index); ++child) {
+        if (filterAcceptsRow(child, index)) {
+            return true;
+        }
+    }
+    return false;
 }
 
 bool ClassesSortFilterProxyModel::lessThan(const QModelIndex &left, const QModelIndex &right) const
@@ -577,11 +647,6 @@ bool ClassesSortFilterProxyModel::lessThan(const QModelIndex &left, const QModel
     }
 }
 
-bool ClassesSortFilterProxyModel::hasChildren(const QModelIndex &parent) const
-{
-    return !parent.isValid() || !parent.parent().isValid();
-}
-
 ClassesWidget::ClassesWidget(MainWindow *main)
     : IaitoDockWidget(main)
     , ui(new Ui::ClassesWidget)
@@ -592,9 +657,32 @@ ClassesWidget::ClassesWidget(MainWindow *main)
 
     proxy_model = new ClassesSortFilterProxyModel(this);
     ui->classesTreeView->setModel(proxy_model);
+    nameMenu = new QMenu(this);
+    names = new NameListView(
+        ui->classesTreeView, nameMenu, proxy_model, ClassesModel::NAME, objectName());
+    auto filter = new QuickFilterView(this);
+    filter->setTypeFilter(proxy_model, ClassesModel::TYPE);
+    ui->verticalLayout->insertWidget(1, filter);
+    filter->addActionButton(names->toggleAction());
+    connect(
+        filter,
+        &QuickFilterView::filterTextChanged,
+        proxy_model,
+        &AddressableFilterProxyModel::setFilterWildcard);
+    connect(
+        filter,
+        &QuickFilterView::filterClosed,
+        ui->classesTreeView,
+        static_cast<void (QWidget::*)()>(&QWidget::setFocus));
+    auto find = new QShortcut(QKeySequence::Find, this);
+    find->setContext(Qt::WidgetWithChildrenShortcut);
+    connect(find, &QShortcut::activated, filter, &QuickFilterView::showFilter);
+    auto clear = new QShortcut(QKeySequence(Qt::Key_Escape), this);
+    clear->setContext(Qt::WidgetWithChildrenShortcut);
+    connect(clear, &QShortcut::activated, filter, &QuickFilterView::clearFilter);
     ui->classesTreeView->sortByColumn(ClassesModel::TYPE, Qt::AscendingOrder);
 
-    ui->classSourceCombo->setCurrentIndex(1);
+    ui->classSourceCombo->setCurrentIndex(0);
 
     connect<void (QComboBox::*)(int)>(
         ui->classSourceCombo, &QComboBox::currentIndexChanged, this, &ClassesWidget::refreshClasses);
@@ -603,11 +691,21 @@ ClassesWidget::ClassesWidget(MainWindow *main)
         &QTreeView::customContextMenuRequested,
         this,
         &ClassesWidget::showContextMenu);
+    connect(Core(), &IaitoCore::refreshAll, this, &ClassesWidget::refreshClasses);
+    connect(Core(), &IaitoCore::codeRebased, this, &ClassesWidget::refreshClasses);
 
     refreshClasses();
 }
 
-ClassesWidget::~ClassesWidget() {}
+ClassesWidget::~ClassesWidget()
+{
+    ui->classesTreeView->setModel(nullptr);
+}
+
+QModelIndex ClassesWidget::currentSourceIndex() const
+{
+    return names->presentationModel()->mapToSource(ui->classesTreeView->currentIndex());
+}
 
 ClassesWidget::Source ClassesWidget::getSource()
 {
@@ -625,7 +723,7 @@ void ClassesWidget::refreshClasses()
     case Source::BIN:
         if (!bin_model) {
             bin_model = new BinClassesModel(this);
-            proxy_model->setSourceModel(bin_model);
+            proxy_model->setClassesModel(bin_model);
             delete anal_model;
             anal_model = nullptr;
         }
@@ -634,7 +732,7 @@ void ClassesWidget::refreshClasses()
     case Source::ANAL:
         if (!anal_model) {
             anal_model = new AnalClassesModel(this);
-            proxy_model->setSourceModel(anal_model);
+            proxy_model->setClassesModel(anal_model);
             delete bin_model;
             bin_model = nullptr;
         }
@@ -651,59 +749,54 @@ void ClassesWidget::on_classesTreeView_doubleClicked(const QModelIndex &index)
     if (!index.isValid())
         return;
 
+    const auto type = index.data(ClassesModel::TypeRole);
+    if (!type.isValid() || type.value<ClassesModel::RowType>() == ClassesModel::RowType::Class) {
+        return;
+    }
+
     QVariant offsetData = index.data(ClassesModel::OffsetRole);
     if (!offsetData.isValid()) {
         return;
     }
     RVA offset = offsetData.value<RVA>();
-    Core()->seekAndShow(offset);
+    if (offset != RVA_INVALID) {
+        Core()->seekAndShow(offset);
+    }
 }
 
 void ClassesWidget::showContextMenu(const QPoint &pt)
 {
-    if (!anal_model) {
-        // no context menu for bin classes
-        return;
-    }
-
-    QModelIndex index = ui->classesTreeView->selectionModel()->currentIndex();
-    if (!index.isValid()) {
-        return;
-    }
-    auto type = static_cast<ClassesModel::RowType>(index.data(ClassesModel::TypeRole).toInt());
-
+    ui->classesTreeView->setCurrentIndex(ui->classesTreeView->indexAt(pt));
+    const QModelIndex index = currentSourceIndex();
+    const auto type = index.data(ClassesModel::TypeRole).value<ClassesModel::RowType>();
     QMenu menu(ui->classesTreeView);
 
-    menu.addAction(ui->newClassAction);
-
-    if (type == ClassesModel::RowType::Class) {
-        menu.addAction(ui->renameClassAction);
-        menu.addAction(ui->deleteClassAction);
-    }
-
-    menu.addSeparator();
-
-    menu.addAction(ui->addMethodAction);
-
-    if (type == ClassesModel::RowType::Method) {
-        menu.addAction(ui->editMethodAction);
-
-        QString className = index.parent().data(ClassesModel::NameRole).toString();
-        QString methodName = index.data(ClassesModel::NameRole).toString();
-        AnalMethodDescription desc;
-        if (Core()->getAnalMethod(className, methodName, &desc)) {
-            if (desc.vtableOffset >= 0) {
-                menu.addAction(ui->seekToVTableAction);
+    if (anal_model) {
+        menu.addAction(ui->newClassAction);
+        if (index.isValid()) {
+            if (type == ClassesModel::RowType::Class) {
+                menu.addAction(ui->renameClassAction);
+                menu.addAction(ui->deleteClassAction);
+            }
+            menu.addAction(ui->addMethodAction);
+            if (type == ClassesModel::RowType::Method) {
+                menu.addAction(ui->editMethodAction);
+                const QString className = index.parent().data(ClassesModel::NameRole).toString();
+                const QString methodName = index.data(ClassesModel::NameRole).toString();
+                AnalMethodDescription desc;
+                if (Core()->getAnalMethod(className, methodName, &desc) && desc.vtableOffset >= 0) {
+                    menu.addAction(ui->seekToVTableAction);
+                }
             }
         }
     }
-
-    menu.exec(ui->classesTreeView->mapToGlobal(pt));
+    menu.addActions(nameMenu->actions());
+    menu.exec(ui->classesTreeView->viewport()->mapToGlobal(pt));
 }
 
 void ClassesWidget::on_seekToVTableAction_triggered()
 {
-    QModelIndex index = ui->classesTreeView->selectionModel()->currentIndex();
+    QModelIndex index = currentSourceIndex();
     QString className = index.parent().data(ClassesModel::NameRole).toString();
 
     QList<AnalVTableDescription> vtables = Core()->getAnalClassVTables(className);
@@ -726,7 +819,7 @@ void ClassesWidget::on_seekToVTableAction_triggered()
 
 void ClassesWidget::on_addMethodAction_triggered()
 {
-    QModelIndex index = ui->classesTreeView->selectionModel()->currentIndex();
+    QModelIndex index = currentSourceIndex();
     if (!index.isValid()) {
         return;
     }
@@ -744,7 +837,7 @@ void ClassesWidget::on_addMethodAction_triggered()
 
 void ClassesWidget::on_editMethodAction_triggered()
 {
-    QModelIndex index = ui->classesTreeView->selectionModel()->currentIndex();
+    QModelIndex index = currentSourceIndex();
     if (!index.isValid()
         || index.data(ClassesModel::TypeRole).toInt()
                != static_cast<int>(ClassesModel::RowType::Method)) {
@@ -767,7 +860,7 @@ void ClassesWidget::on_newClassAction_triggered()
 
 void ClassesWidget::on_deleteClassAction_triggered()
 {
-    QModelIndex index = ui->classesTreeView->selectionModel()->currentIndex();
+    QModelIndex index = currentSourceIndex();
     if (!index.isValid()
         || index.data(ClassesModel::TypeRole).toInt()
                != static_cast<int>(ClassesModel::RowType::Class)) {
@@ -786,7 +879,7 @@ void ClassesWidget::on_deleteClassAction_triggered()
 
 void ClassesWidget::on_renameClassAction_triggered()
 {
-    QModelIndex index = ui->classesTreeView->selectionModel()->currentIndex();
+    QModelIndex index = currentSourceIndex();
     if (!index.isValid()
         || index.data(ClassesModel::TypeRole).toInt()
                != static_cast<int>(ClassesModel::RowType::Class)) {

src/widgets/ClassesWidget.h

@@ -4,6 +4,7 @@
 #include <memory>
 
 #include "IaitoDockWidget.h"
+#include "common/AddressableItemModel.h"
 #include "core/Iaito.h"
 
 #include <QAbstractListModel>
@@ -13,6 +14,8 @@ namespace Ui {
 class ClassesWidget;
 }
 
+class NameListView;
+class QMenu;
 class QTreeWidget;
 class QTreeWidgetItem;
 class MainWindow;
@@ -21,7 +24,7 @@ class ClassesWidget;
 /**
  * @brief Common abstract base class for Bin and Anal classes models
  */
-class ClassesModel : public QAbstractItemModel
+class ClassesModel : public AddressableItemModel<>
 {
 public:
     enum Columns { NAME = 0, TYPE, OFFSET, VTABLE, COUNT };
@@ -60,13 +63,16 @@ public:
      * by vtable offset
      */
     static const int VTableRole = Qt::UserRole + 3;
+    static const int MangledNameRole = Qt::UserRole + 4;
 
     explicit ClassesModel(QObject *parent = nullptr)
-        : QAbstractItemModel(parent)
+        : AddressableItemModel<>(parent)
     {}
 
     QVariant headerData(
         int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
+    RVA address(const QModelIndex &index) const override;
+    QString name(const QModelIndex &index) const override;
 };
 
 Q_DECLARE_METATYPE(ClassesModel::RowType)
@@ -158,17 +164,20 @@ public slots:
     void classAttrsChanged(const QString &cls);
 };
 
-class ClassesSortFilterProxyModel : public QSortFilterProxyModel
+class ClassesSortFilterProxyModel : public AddressableFilterProxyModel
 {
     Q_OBJECT
 
 public:
     explicit ClassesSortFilterProxyModel(QObject *parent = nullptr);
+    void setClassesModel(ClassesModel *model)
+    {
+        AddressableFilterProxyModel::setSourceModel(static_cast<AddressableItemModelI *>(model));
+    }
 
 protected:
     bool filterAcceptsRow(int row, const QModelIndex &parent) const override;
     bool lessThan(const QModelIndex &left, const QModelIndex &right) const override;
-    bool hasChildren(const QModelIndex &parent = QModelIndex()) const override;
 };
 
 class ClassesWidget : public IaitoDockWidget
@@ -203,6 +212,9 @@ private:
     BinClassesModel *bin_model = nullptr;
     AnalClassesModel *anal_model = nullptr;
     ClassesSortFilterProxyModel *proxy_model;
+    NameListView *names;
+    QMenu *nameMenu;
+    QModelIndex currentSourceIndex() const;
 };
 
 #endif // CLASSESWIDGET_H

src/widgets/CodeInfoWidget.cpp

@@ -244,6 +244,24 @@ void CodeInfoWidget::buildUi()
         functionTree->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
         functionTree->setHorizontalScrollBarPolicy(Qt::ScrollBarAsNeeded);
         layout->addWidget(functionTree);
+
+        exceptionStatus = new QLabel(functionSection);
+        exceptionStatus->setWordWrap(true);
+        layout->addWidget(exceptionStatus);
+        exceptionTree = new QTreeWidget(functionSection);
+        exceptionTree->setHeaderLabels({tr("Exception"), tr("Address / value")});
+        exceptionTree->setRootIsDecorated(true);
+        exceptionTree->setAlternatingRowColors(true);
+        exceptionTree->header()->setSectionResizeMode(0, QHeaderView::ResizeToContents);
+        exceptionTree->setToolTip(tr("Activate an address to navigate. Range ends are exclusive."));
+        exceptionTree->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+        connect(exceptionTree, &QTreeWidget::itemActivated, this, [](QTreeWidgetItem *item, int) {
+            const auto address = item->data(0, Qt::UserRole);
+            if (address.isValid()) {
+                Core()->seek(address.toULongLong());
+            }
+        });
+        layout->addWidget(exceptionTree);
     }
     rootLayout->addWidget(functionSection);
 
@@ -400,6 +418,7 @@ void CodeInfoWidget::refresh()
 
     const RVA off = Core()->getOffset();
     const QString addrStr = RAddressString(off);
+    refreshExceptions(off);
 
     // Opcode (aoj)
     QJsonDocument opDoc = Core()->cmdj("aoj");
@@ -492,6 +511,62 @@ void CodeInfoWidget::refresh()
     }
 }
 
+void CodeInfoWidget::refreshExceptions(RVA address)
+{
+    exceptionTree->clear();
+    const RVA function = Core()->getFunctionStart(address);
+    auto regions = Core()->getExceptionRegions(function);
+    if (function == RVA_INVALID) {
+        for (auto it = regions.begin(); it != regions.end();) {
+            if (!it->touches(address, 1)) {
+                it = regions.erase(it);
+            } else {
+                ++it;
+            }
+        }
+    }
+    exceptionStatus->setText(
+        regions.isEmpty()
+            ? tr("No exception metadata reported for this function.")
+            : tr("Exception handlers (%1) · activate an address to navigate").arg(regions.size()));
+    exceptionTree->setVisible(!regions.isEmpty());
+    exceptionStatus->setVisible(!regions.isEmpty());
+    for (const auto &region : regions) {
+        auto *entry = new QTreeWidgetItem(
+            exceptionTree,
+            {QStringLiteral("#%1 · %2").arg(region.index).arg(region.label()),
+             region.contains(address) ? tr("Protects current instruction") : QString()});
+        entry->setToolTip(
+            0,
+            region.description().toHtmlEscaped().replace(QLatin1Char('\n'), QStringLiteral("<br>")));
+        QPixmap swatch(12, 12);
+        swatch.fill(region.color());
+        entry->setIcon(0, QIcon(swatch));
+        const auto addAddress = [entry](const QString &name, quint64 value) {
+            auto *item = new QTreeWidgetItem(entry, {name, RAddressString(value)});
+            item->setData(0, Qt::UserRole, QVariant::fromValue(value));
+        };
+        addAddress(tr("Try start"), region.from);
+        addAddress(tr("Try end (exclusive)"), region.to);
+        addAddress(tr("Handler"), region.handler);
+        if (region.filter && region.filter != ExceptionRegion::Invalid) {
+            if (region.filter > 1) {
+                addAddress(tr("Filter"), region.filter);
+            } else {
+                new QTreeWidgetItem(entry, {tr("Filter constant"), QString::number(region.filter)});
+            }
+        }
+        if (region.typeFilter) {
+            new QTreeWidgetItem(entry, {tr("Type filter"), QString::number(region.typeFilter)});
+        }
+        if (region.source != ExceptionRegion::Invalid) {
+            addAddress(tr("Metadata source"), region.source);
+        }
+        entry->setExpanded(true);
+    }
+    fitTreeToContent(exceptionTree);
+}
+
 void CodeInfoWidget::onPatchInstruction()
 {
     if (mainWindow) {

src/widgets/CodeInfoWidget.h

@@ -57,6 +57,7 @@ private:
     void buildUi();
     void populateTree(QTreeWidget *tree, const QJsonValue &value);
     void addJsonNode(QTreeWidgetItem *parent, const QString &key, const QJsonValue &value);
+    void refreshExceptions(RVA address);
 
     CodeInfoSection *opcodeSection;
     CodeInfoSection *blockSection;
@@ -73,6 +74,8 @@ private:
     QTreeWidget *opcodeTree;
     QTreeWidget *blockTree;
     QTreeWidget *functionTree;
+    QTreeWidget *exceptionTree;
+    QLabel *exceptionStatus;
 
     QPushButton *btnPatchInstr;
     QPushButton *btnPatchBytes;

src/widgets/ColorPicker.cpp

@@ -399,7 +399,7 @@ void ColorShowWidget::setColor(const QColor &c)
 void ColorShowWidget::paintEvent(QPaintEvent *event)
 {
     QPainter p(this);
-    const int miniRectWidth = rect().width() / 2;
+    const int miniRectWidth = qMax(2, rect().width() / 2);
     for (int y = rect().topLeft().ry(); y < rect().bottomRight().ry(); y++) {
         for (int x = rect().topLeft().rx(); x < rect().bottomRight().rx(); x++) {
             p.setPen(
@@ -438,7 +438,7 @@ void AlphaChannelBar::paintEvent(QPaintEvent *event)
 
     barRect.setWidth(barRect.width() - triangleSize);
 
-    const int miniRectWidth = barRect.width() / 2;
+    const int miniRectWidth = qMax(2, barRect.width() / 2);
     for (int y = barRect.topLeft().ry(); y < barRect.bottomRight().ry(); y++) {
         for (int x = barRect.topLeft().rx(); x < barRect.bottomRight().rx(); x++) {
             p.setPen(

src/widgets/ComboQuickFilterView.cpp

@@ -1,46 +1,38 @@
 #include "ComboQuickFilterView.h"
-#include "ui_ComboQuickFilterView.h"
+
+#include <QHBoxLayout>
+#include <QLabel>
 
 ComboQuickFilterView::ComboQuickFilterView(QWidget *parent)
-    : QWidget(parent)
-    , ui(new Ui::ComboQuickFilterView)
+    : QuickFilterView(parent)
+    , label(new QLabel(this))
+    , combo(new QComboBox(this))
 {
-    ui->setupUi(this);
-
-    connect(ui->lineEdit, &QLineEdit::textChanged, this, [this](const QString &text) {
-        emit filterTextChanged(text);
-    });
-}
-
-ComboQuickFilterView::~ComboQuickFilterView()
-{
-    delete ui;
+    label->setObjectName(QStringLiteral("label"));
+    combo->setObjectName(QStringLiteral("comboBox"));
+    auto row = qobject_cast<QHBoxLayout *>(layout());
+    row->addWidget(label);
+    row->addWidget(combo);
 }
 
 void ComboQuickFilterView::setLabelText(const QString &text)
 {
-    ui->label->setText(text);
+    label->setText(text);
 }
 
 QComboBox *ComboQuickFilterView::comboBox()
 {
-    return ui->comboBox;
-}
-
-void ComboQuickFilterView::showFilter()
-{
-    show();
-    ui->lineEdit->setFocus();
+    return combo;
 }
 
 void ComboQuickFilterView::clearFilter()
 {
-    ui->lineEdit->setText("");
+    QuickFilterView::clearFilter();
+    combo->setCurrentIndex(0);
 }
 
 void ComboQuickFilterView::closeFilter()
 {
-    ui->lineEdit->setText("");
-    hide();
-    emit filterClosed();
+    combo->setCurrentIndex(0);
+    QuickFilterView::closeFilter();
 }

src/widgets/ComboQuickFilterView.h

@@ -1,37 +1,28 @@
 #ifndef COMBOQUICKFILTERVIEW_H
 #define COMBOQUICKFILTERVIEW_H
 
-#include "core/IaitoCommon.h"
+#include "QuickFilterView.h"
 
 #include <QComboBox>
-#include <QWidget>
+class QLabel;
 
-namespace Ui {
-class ComboQuickFilterView;
-}
-
-class IAITO_EXPORT ComboQuickFilterView : public QWidget
+class IAITO_EXPORT ComboQuickFilterView : public QuickFilterView
 {
     Q_OBJECT
 
 public:
     explicit ComboQuickFilterView(QWidget *parent = nullptr);
-    ~ComboQuickFilterView();
 
     void setLabelText(const QString &text);
     QComboBox *comboBox();
 
 public slots:
-    void showFilter();
-    void closeFilter();
     void clearFilter();
-
-signals:
-    void filterTextChanged(const QString &text);
-    void filterClosed();
+    void closeFilter();
 
 private:
-    Ui::ComboQuickFilterView *ui;
+    QLabel *label;
+    QComboBox *combo;
 };
 
 #endif // COMBOQUICKFILTERVIEW_H

src/widgets/ComboQuickFilterView.ui

@@ -1,50 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<ui version="4.0">
- <class>ComboQuickFilterView</class>
- <widget class="QWidget" name="ComboQuickFilterView">
-  <property name="geometry">
-   <rect>
-    <x>0</x>
-    <y>0</y>
-    <width>378</width>
-    <height>20</height>
-   </rect>
-  </property>
-  <property name="windowTitle">
-   <string>Form</string>
-  </property>
-  <layout class="QHBoxLayout" name="horizontalLayout">
-   <property name="leftMargin">
-    <number>0</number>
-   </property>
-   <property name="topMargin">
-    <number>0</number>
-   </property>
-   <property name="rightMargin">
-    <number>0</number>
-   </property>
-   <property name="bottomMargin">
-    <number>0</number>
-   </property>
-   <item>
-    <widget class="QLineEdit" name="lineEdit">
-     <property name="placeholderText">
-      <string>Quick Filter</string>
-     </property>
-    </widget>
-   </item>
-   <item>
-    <widget class="QLabel" name="label">
-     <property name="text">
-      <string>TextLabel</string>
-     </property>
-    </widget>
-   </item>
-   <item>
-    <widget class="QComboBox" name="comboBox"/>
-   </item>
-  </layout>
- </widget>
- <resources/>
- <connections/>
-</ui>

src/widgets/ConsoleWidget.cpp

@@ -44,6 +44,7 @@ static const char *refreshAllCommandPrefixes[] = {
     "C",
     "aa",
     "af",
+    "avg",
     "w",
 };
 
@@ -150,7 +151,8 @@ ConsoleWidget::ConsoleWidget(MainWindow *main)
     historyDownShortcut->setContext(Qt::WidgetShortcut);
 
     QShortcut *completionShortcut
-        = ShortcutMgr()->registerShortcut("console.complete", ui->r2InputLineEdit);
+        = ShortcutMgr()
+              ->registerShortcut("console.complete", ui->r2InputLineEdit, Qt::WidgetShortcut);
     connect(completionShortcut, &QShortcut::activated, this, &ConsoleWidget::triggerCompletion);
 
     connect(ui->r2InputLineEdit, &QLineEdit::editingFinished, this, &ConsoleWidget::disableCompletion);

src/widgets/DataAnalysisView.cpp

@@ -0,0 +1,679 @@
+#include "DataAnalysisView.h"
+
+#include <QApplication>
+#include <QContextMenuEvent>
+#include <QGestureEvent>
+#include <QKeyEvent>
+#include <QLinearGradient>
+#include <QMouseEvent>
+#include <QNativeGestureEvent>
+#include <QPainter>
+#include <QPainterPath>
+#include <QPinchGesture>
+#include <QToolTip>
+#include <QWheelEvent>
+
+#include <algorithm>
+#include <cmath>
+
+using namespace DataAnalysis;
+
+DataAnalysisView::DataAnalysisView(bool overview, QWidget *parent)
+    : QWidget(parent)
+    , overview(overview)
+{
+    setMouseTracking(true);
+    setFocusPolicy(Qt::StrongFocus);
+#ifndef Q_OS_MACOS
+    // On macOS, handle native trackpad events directly to retain their position.
+    grabGesture(Qt::PinchGesture);
+#endif
+    setMinimumSize(220, overview ? 70 : 180);
+    setAccessibleName(overview ? tr("Data overview") : tr("Data analysis graph"));
+    setAccessibleDescription(
+        overview
+            ? tr("Drag the window or use the wheel to pan; drag its edges to resize; pinch to zoom."
+                 " Double-click to fit.")
+            : tr("Click to seek; drag to select bytes; wheel to pan; pinch to zoom."
+                 " Right-click for comments, flags and range actions."));
+    tooltipTimer.setSingleShot(true);
+    tooltipTimer.setInterval(650);
+    connect(&tooltipTimer, &QTimer::timeout, this, &DataAnalysisView::showTooltip);
+}
+
+QString DataAnalysisView::metricName(int metric)
+{
+    static const char *names[]
+        = {QT_TR_NOOP("Entropy"),
+           QT_TR_NOOP("Printable ASCII"),
+           QT_TR_NOOP("0x00 bytes"),
+           QT_TR_NOOP("0xFF bytes"),
+           QT_TR_NOOP("Unique bytes"),
+           QT_TR_NOOP("Mean byte"),
+           QT_TR_NOOP("ASCII letters"),
+           QT_TR_NOOP("ASCII digits"),
+           QT_TR_NOOP("ASCII whitespace"),
+           QT_TR_NOOP("ASCII control"),
+           QT_TR_NOOP("High bytes")};
+    return metric >= 0 && metric < Count ? tr(names[metric]) : QString();
+}
+
+QString DataAnalysisView::metricValue(int metric, double value)
+{
+    if (metric == Entropy) {
+        return tr("%1 bits/byte").arg(value * 8, 0, 'f', 3);
+    }
+    if (metric == Unique) {
+        return tr("%1 / 256").arg(qRound(value * 256));
+    }
+    if (metric == Mean) {
+        return QString::number(value * 255, 'f', 2);
+    }
+    return tr("%1%").arg(value * 100, 0, 'f', 2);
+}
+
+QString DataAnalysisView::metricDescription(int metric)
+{
+    static const char *descriptions[]
+        = {QT_TR_NOOP(
+               "Shannon entropy: 0–8 bits per byte. Higher values indicate a more varied byte "
+               "distribution. Overlaid values are divided by 8."),
+           QT_TR_NOOP("Percentage of printable ASCII bytes (0x20–0x7e)."),
+           QT_TR_NOOP("Percentage of zero bytes (0x00), often padding or uninitialized data."),
+           QT_TR_NOOP("Percentage of 0xff bytes, often padding or erased storage."),
+           QT_TR_NOOP("Number of distinct byte values observed, out of 256 possible values."),
+           QT_TR_NOOP("Average byte value (0–255). Overlaid values are divided by 255."),
+           QT_TR_NOOP("Percentage of ASCII letters (A–Z and a–z)."),
+           QT_TR_NOOP("Percentage of ASCII decimal digits (0–9)."),
+           QT_TR_NOOP(
+               "Percentage of ASCII whitespace (space, tab, newline, vertical tab, form feed and "
+               "carriage return)."),
+           QT_TR_NOOP("Percentage of ASCII control bytes (0x00–0x1f and 0x7f)."),
+           QT_TR_NOOP("Percentage of bytes with the high bit set (0x80–0xff).")};
+    return metric >= 0 && metric < Count ? tr(descriptions[metric]) : QString();
+}
+
+QString DataAnalysisView::markerName(MarkerType type)
+{
+    static const char *names[]
+        = {QT_TR_NOOP("Section"),
+           QT_TR_NOOP("Segment"),
+           QT_TR_NOOP("Map"),
+           QT_TR_NOOP("Flag"),
+           QT_TR_NOOP("Comment")};
+    return tr(names[type]);
+}
+
+Range DataAnalysisView::axisRange() const
+{
+    return overview ? domain : visibleRange;
+}
+
+QRectF DataAnalysisView::plotRect() const
+{
+    return QRectF(
+        46, overview ? 5 : 30, qMax(1, width() - 60), qMax(1, height() - (overview ? 26 : 59)));
+}
+
+qreal DataAnalysisView::xForAddress(RVA address) const
+{
+    const Range range = axisRange();
+    if (!range.valid()) {
+        return plotRect().left();
+    }
+    const long double distance = address >= range.start ? (long double) (address - range.start)
+                                                        : -(long double) (range.start - address);
+    return plotRect().left() + distance / range.size() * plotRect().width();
+}
+
+RVA DataAnalysisView::addressAt(qreal x) const
+{
+    const Range range = axisRange();
+    if (!range.valid()) {
+        return RVA_INVALID;
+    }
+    const long double fraction = (x - plotRect().left()) / plotRect().width();
+    if (fraction <= 0) {
+        return range.start;
+    }
+    if (fraction >= 1) {
+        return range.end - 1;
+    }
+    return range.start + qMin<RVA>(RVA(fraction * range.size()), range.size() - 1);
+}
+
+void DataAnalysisView::paintEvent(QPaintEvent *)
+{
+    QPainter p(this);
+    p.setRenderHint(QPainter::Antialiasing);
+    p.fillRect(rect(), palette().color(QPalette::Base));
+    const QRectF plot = plotRect();
+    const Range range = axisRange();
+    const QColor text = palette().color(QPalette::Text);
+    QColor grid = text;
+    grid.setAlpha(35);
+    p.setPen(grid);
+    p.drawRect(plot);
+    if (!range.valid()) {
+        p.setPen(text);
+        p.drawText(plot, Qt::AlignCenter, tr("Open a file to analyze its data"));
+        return;
+    }
+
+    const bool split = !overview && separateTracks;
+    const int tracks = split ? qMax(1, int(metrics.size())) : 1;
+    for (int track = 0; track < tracks; ++track) {
+        const qreal top = plot.top() + track * plot.height() / tracks;
+        const qreal bottom = plot.top() + (track + 1) * plot.height() / tracks;
+        const qreal graphTop = top + (split ? 19 : 0);
+        const qreal graphBottom = bottom - (split ? 5 : 0);
+        const qreal graphHeight = qMax(1.0, graphBottom - graphTop);
+        if (!overview) {
+            for (int tick = 0; tick <= 4; ++tick) {
+                const qreal y = graphBottom - graphHeight * tick / 4;
+                p.setPen(grid);
+                p.drawLine(QPointF(plot.left(), y), QPointF(plot.right(), y));
+                if (tracks == 1 || tick == 0 || tick == 4) {
+                    int maximum = 100;
+                    if ((separateTracks || metrics.size() == 1) && !metrics.isEmpty()) {
+                        const int metric = metrics[track];
+                        maximum = metric == Entropy  ? 8
+                                  : metric == Mean   ? 255
+                                  : metric == Unique ? 256
+                                                     : 100;
+                    }
+                    p.setPen(text);
+                    QString label = QString::number(maximum * tick / 4.0, 'g', 3);
+                    if (maximum == 100 && tick == 4) {
+                        label += '%';
+                    }
+                    p.drawText(
+                        QRectF(0, y - 8, plot.left() - 7, 16),
+                        Qt::AlignRight | Qt::AlignVCenter,
+                        label);
+                }
+            }
+            if (split && !metrics.isEmpty()) {
+                p.setPen(colors[metrics[track]]);
+                p.drawText(
+                    QRectF(plot.left() + 5, top, plot.width() - 10, 18),
+                    Qt::AlignLeft | Qt::AlignVCenter,
+                    metricName(metrics[track]));
+            }
+        }
+        p.save();
+        p.setClipRect(QRectF(plot.left(), graphTop, plot.width(), graphHeight));
+        const QVector<int> drawn = overview                      ? QVector<int>{Entropy}
+                                   : split && !metrics.isEmpty() ? QVector<int>{metrics[track]}
+                                                                 : metrics;
+        for (int series = 0; series < drawn.size(); ++series) {
+            const int metric = drawn[series];
+            const QColor color = colors[metric];
+            QPainterPath path;
+            qreal firstX = 0, lastX = 0;
+            auto flush = [&]() {
+                if (path.isEmpty()) {
+                    return;
+                }
+                if (overview || style == Areas) {
+                    QPainterPath area = path;
+                    area.lineTo(lastX, graphBottom);
+                    area.lineTo(firstX, graphBottom);
+                    area.closeSubpath();
+                    QLinearGradient gradient(0, graphTop, 0, graphBottom);
+                    QColor fill = color;
+                    fill.setAlpha(overview ? 110 : 85);
+                    gradient.setColorAt(0, fill);
+                    fill.setAlpha(12);
+                    gradient.setColorAt(1, fill);
+                    p.fillPath(area, gradient);
+                }
+                p.setPen(QPen(color, overview ? 1 : 1.5));
+                p.drawPath(path);
+                path = QPainterPath();
+            };
+            for (const auto &sample : samples) {
+                if (!sample.bytes) {
+                    flush();
+                    continue;
+                }
+                const qreal left = xForAddress(sample.range.start);
+                const qreal right = xForAddress(sample.range.end);
+                const qreal y = graphBottom - qBound(0.0, sample.values[metric], 1.0) * graphHeight;
+                if (!overview && style == Bars) {
+                    const qreal barWidth = (right - left) / qMax(1, int(drawn.size()));
+                    QColor fill = color;
+                    fill.setAlpha(190);
+                    p.fillRect(
+                        QRectF(left + series * barWidth, y, qMax(0.6, barWidth), graphBottom - y),
+                        fill);
+                } else {
+                    if (path.isEmpty()) {
+                        firstX = left;
+                        path.moveTo(left, y);
+                    }
+                    path.lineTo((left + right) / 2, y);
+                    lastX = right;
+                    // Retain single-bucket signals and reach both ends of the range.
+                    path.lineTo(right, y);
+                }
+            }
+            flush();
+        }
+        p.restore();
+    }
+
+    // Markers are coalesced by pixel and category to keep dense flag sets cheap to paint.
+    std::array<int, MarkerCount> lastPixel;
+    lastPixel.fill(-1000);
+    qreal labelEnd = plot.left();
+    for (const auto &marker : markers) {
+        if (!markerEnabled[marker.type]) {
+            continue;
+        }
+        const QColor color = colors[(marker.type + 4) % Count];
+        for (RVA address : {marker.range.start, marker.range.end}) {
+            if (address == marker.range.end && marker.type >= Flag) {
+                continue;
+            }
+            if (address < range.start || address > range.end) {
+                continue;
+            }
+            const qreal x = xForAddress(address);
+            const int pixel = qRound(x);
+            if (std::abs(pixel - lastPixel[marker.type]) < 2) {
+                continue;
+            }
+            lastPixel[marker.type] = pixel;
+            QColor line = color;
+            line.setAlpha(95);
+            p.setPen(QPen(line, 1, marker.type >= Flag ? Qt::DotLine : Qt::DashLine));
+            p.drawLine(QPointF(x, plot.top()), QPointF(x, plot.bottom()));
+            p.setPen(color);
+            p.drawLine(QPointF(x, plot.top()), QPointF(x, plot.top() + 5));
+        }
+        if (!overview && marker.type <= Map && intersect(marker.range, range).valid()) {
+            const qreal left = qMax(plot.left(), xForAddress(marker.range.start));
+            const qreal right = qMin(plot.right(), xForAddress(marker.range.end));
+            if (left >= labelEnd && right - left > 38) {
+                p.setPen(color);
+                const QString label
+                    = fontMetrics().elidedText(marker.name, Qt::ElideRight, int(right - left - 6));
+                p.drawText(QRectF(left + 3, 4, right - left - 6, 20), Qt::AlignLeft, label);
+                labelEnd = left + fontMetrics().horizontalAdvance(label) + 10;
+            }
+        }
+    }
+
+    auto highlight = [&](Range selected, bool window) {
+        selected = intersect(selected, range);
+        if (!selected.valid()) {
+            return;
+        }
+        const qreal left = xForAddress(selected.start), right = xForAddress(selected.end);
+        QColor fill = palette().color(QPalette::Highlight);
+        fill.setAlpha(window ? 35 : 55);
+        p.fillRect(QRectF(left, plot.top(), qMax(1.0, right - left), plot.height()), fill);
+        p.setPen(QPen(palette().color(QPalette::Highlight), window ? 2 : 1));
+        p.drawRect(QRectF(left, plot.top(), qMax(1.0, right - left), plot.height()));
+        if (window) {
+            p.fillRect(QRectF(left - 2, plot.center().y() - 7, 4, 14), text);
+            p.fillRect(QRectF(right - 2, plot.center().y() - 7, 4, 14), text);
+        }
+    };
+    if (overview) {
+        const QColor shade(0, 0, 0, 65);
+        const qreal left = xForAddress(visibleRange.start), right = xForAddress(visibleRange.end);
+        p.fillRect(
+            QRectF(plot.left(), plot.top(), qMax(0.0, left - plot.left()), plot.height()), shade);
+        p.fillRect(QRectF(right, plot.top(), qMax(0.0, plot.right() - right), plot.height()), shade);
+        highlight(visibleRange, true);
+    }
+    highlight(drag == Select && dragSelection.valid() ? dragSelection : selection, false);
+    if (range.contains(seekAddress)) {
+        const qreal x = xForAddress(seekAddress);
+        p.setPen(QPen(palette().color(QPalette::Highlight), 2));
+        p.drawLine(QPointF(x, plot.top()), QPointF(x, plot.bottom()));
+        p.setBrush(palette().color(QPalette::Highlight));
+        p.drawPolygon(QPolygonF(
+            QVector<QPointF>{
+                QPointF(x - 4, plot.top()), QPointF(x + 4, plot.top()), QPointF(x, plot.top() + 6)}));
+    }
+    if (!overview && hoverX >= plot.left() && hoverX <= plot.right()) {
+        p.setPen(QPen(text, 1, Qt::DotLine));
+        p.drawLine(QPointF(hoverX, plot.top()), QPointF(hoverX, plot.bottom()));
+    }
+    p.setPen(text);
+    const int addressWidth = fontMetrics().horizontalAdvance(RAddressString(range.end - 1));
+    const int labels = qBound(1, int(plot.width() / (addressWidth + 24)), 4);
+    for (int i = 0; i <= labels; ++i) {
+        const qreal x = plot.left() + plot.width() * i / labels;
+        const QString label = fontMetrics().elidedText(
+            RAddressString(addressAt(x)), Qt::ElideMiddle, int(plot.width() / (labels + 1)));
+        const qreal width = fontMetrics().horizontalAdvance(label) + 2;
+        const qreal left
+            = qBound(plot.left(), x - width / 2, qMax(plot.left(), plot.right() - width));
+        p.drawText(QRectF(left, plot.bottom() + 4, width, 20), Qt::AlignLeft, label);
+    }
+    const bool hasData = std::any_of(samples.cbegin(), samples.cend(), [](const Sample &sample) {
+        return sample.bytes > 0;
+    });
+    if (!overview && !hasData) {
+        p.drawText(plot, Qt::AlignCenter, loading ? tr("Analyzing…") : tr("No readable data"));
+    }
+}
+
+bool DataAnalysisView::event(QEvent *event)
+{
+    if (event->type() == QEvent::Gesture) {
+        auto *gestures = static_cast<QGestureEvent *>(event);
+        if (auto *pinch = static_cast<QPinchGesture *>(gestures->gesture(Qt::PinchGesture))) {
+            if (pinch->state() != Qt::GestureFinished && pinch->state() != Qt::GestureCanceled
+                && (pinch->changeFlags() & QPinchGesture::ScaleFactorChanged)) {
+                const QPoint position = mapFromGlobal(pinch->centerPoint().toPoint());
+                pinchZoom(pinch->scaleFactor(), position.x());
+            }
+            gestures->accept(pinch);
+            return true;
+        }
+    } else if (event->type() == QEvent::NativeGesture) {
+        auto *gesture = static_cast<QNativeGestureEvent *>(event);
+        if (gesture->gestureType() == Qt::ZoomNativeGesture) {
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+            const qreal x = gesture->position().x();
+#else
+            const qreal x = gesture->localPos().x();
+#endif
+            pinchZoom(1.0 + gesture->value(), x);
+            event->accept();
+            return true;
+        }
+    }
+    return QWidget::event(event);
+}
+
+void DataAnalysisView::pinchZoom(qreal scaleFactor, qreal x)
+{
+    cancelTooltip();
+    drag = None;
+    dragSelection = {};
+    if (std::isfinite(scaleFactor) && scaleFactor > 0 && scaleFactor != 1) {
+        // Magnifying the graph narrows the address range around the gesture.
+        zoom(1.0 / scaleFactor, addressAt(x));
+    }
+    update();
+}
+
+void DataAnalysisView::zoom(double factor, RVA anchor)
+{
+    if (!domain.valid() || !visibleRange.valid() || !std::isfinite(factor) || factor <= 0) {
+        return;
+    }
+    long double scaled = (long double) visibleRange.size() * factor;
+    if (factor > 1) {
+        // Small pinch steps must still let the user zoom out from a one-byte range.
+        scaled = std::ceil(scaled);
+    }
+    const RVA size = scaled >= domain.size() ? domain.size() : qMax<RVA>(1, RVA(scaled));
+    anchor = qBound(visibleRange.start, anchor, visibleRange.end - 1);
+    const long double ratio = (long double) (anchor - visibleRange.start) / visibleRange.size();
+    const RVA before = qMin<RVA>(size - 1, RVA(ratio * size));
+    const RVA start = anchor - qMin(anchor - domain.start, before);
+    const RVA clamped = qMin(start, domain.end - size);
+    emit rangeRequested(clamped, clamped + size);
+}
+
+void DataAnalysisView::pan(int direction)
+{
+    if (!visibleRange.valid() || !domain.valid()) {
+        return;
+    }
+    const RVA step = qMax<RVA>(1, visibleRange.size() / 4);
+    const RVA start = direction < 0
+                          ? visibleRange.start - qMin(step, visibleRange.start - domain.start)
+                          : visibleRange.start + qMin(step, domain.end - visibleRange.end);
+    emit rangeRequested(start, start + visibleRange.size());
+}
+
+void DataAnalysisView::mousePressEvent(QMouseEvent *event)
+{
+    cancelTooltip();
+    if (event->button() != Qt::LeftButton || !axisRange().valid()
+        || !plotRect().contains(event->pos())) {
+        return;
+    }
+    setFocus();
+    pressPosition = event->pos();
+    pressAddress = addressAt(event->pos().x());
+    pressRange = visibleRange;
+    dragSelection = {};
+    if (overview) {
+        if (std::abs(event->pos().x() - xForAddress(visibleRange.start)) < 7) {
+            drag = LeftEdge;
+        } else if (std::abs(event->pos().x() - xForAddress(visibleRange.end)) < 7) {
+            drag = RightEdge;
+        } else {
+            drag = Move;
+            if (!visibleRange.contains(pressAddress)) {
+                pressRange = centered(domain, pressAddress, visibleRange.size());
+                emit rangeRequested(pressRange.start, pressRange.end);
+            }
+        }
+    } else {
+        drag = Select;
+    }
+    event->accept();
+}
+
+void DataAnalysisView::updateDrag(QPoint position)
+{
+    const RVA address = addressAt(position.x());
+    if (drag == Select) {
+        dragSelection = {qMin(address, pressAddress), qMax(address, pressAddress) + 1};
+        update();
+    } else if (drag == LeftEdge) {
+        emit rangeRequested(qMin(address, pressRange.end - 1), pressRange.end);
+    } else if (drag == RightEdge) {
+        emit rangeRequested(pressRange.start, qMax(address + 1, pressRange.start + 1));
+    } else if (drag == Move) {
+        const RVA start = address >= pressAddress
+                              ? pressRange.start
+                                    + qMin(address - pressAddress, domain.end - pressRange.end)
+                              : pressRange.start
+                                    - qMin(pressAddress - address, pressRange.start - domain.start);
+        emit rangeRequested(start, start + pressRange.size());
+    }
+}
+
+void DataAnalysisView::mouseMoveEvent(QMouseEvent *event)
+{
+    const bool moved = hoverPosition != event->pos();
+    hoverPosition = event->pos();
+    hoverX = event->pos().x();
+    if (drag != None) {
+        updateDrag(event->pos());
+    } else if (plotRect().contains(event->pos())) {
+        if (moved) {
+            cancelTooltip();
+            tooltipTimer.start();
+        }
+        const bool edge = overview
+                          && (std::abs(hoverX - xForAddress(visibleRange.start)) < 7
+                              || std::abs(hoverX - xForAddress(visibleRange.end)) < 7);
+        setCursor(edge ? Qt::SizeHorCursor : overview ? Qt::OpenHandCursor : Qt::CrossCursor);
+    } else {
+        cancelTooltip();
+    }
+    update();
+}
+
+void DataAnalysisView::mouseReleaseEvent(QMouseEvent *event)
+{
+    if (event->button() != Qt::LeftButton || drag == None) {
+        return;
+    }
+    updateDrag(event->pos());
+    if (drag == Select) {
+        if ((event->pos() - pressPosition).manhattanLength() < QApplication::startDragDistance()) {
+            emit selectionRequested(0, 0);
+            emit seekRequested(nearestMarker(event->pos().x()));
+        } else {
+            emit selectionRequested(dragSelection.start, dragSelection.end);
+        }
+    }
+    drag = None;
+    dragSelection = {};
+    update();
+}
+
+void DataAnalysisView::mouseDoubleClickEvent(QMouseEvent *event)
+{
+    cancelTooltip();
+    if (event->button() == Qt::LeftButton && axisRange().valid()) {
+        drag = None;
+        if (overview) {
+            emit rangeRequested(domain.start, domain.end);
+        } else {
+            zoom(0.5, addressAt(event->pos().x()));
+        }
+    }
+}
+
+void DataAnalysisView::wheelEvent(QWheelEvent *event)
+{
+    cancelTooltip();
+    const QPoint delta = event->angleDelta();
+    const int movement = delta.y() ? delta.y() : delta.x();
+    if (!movement) {
+        event->ignore();
+        return;
+    }
+    pan(movement > 0 ? -1 : 1);
+    event->accept();
+}
+
+void DataAnalysisView::keyPressEvent(QKeyEvent *event)
+{
+    cancelTooltip();
+    const RVA center = visibleRange.start + visibleRange.size() / 2;
+    switch (event->key()) {
+    case Qt::Key_Plus:
+    case Qt::Key_Equal:
+        zoom(0.5, center);
+        break;
+    case Qt::Key_Minus:
+        zoom(2, center);
+        break;
+    case Qt::Key_Left:
+        pan(-1);
+        break;
+    case Qt::Key_Right:
+        pan(1);
+        break;
+    case Qt::Key_Home:
+        emit rangeRequested(domain.start, domain.end);
+        break;
+    case Qt::Key_Escape:
+        drag = None;
+        emit selectionRequested(0, 0);
+        update();
+        break;
+    default:
+        QWidget::keyPressEvent(event);
+        return;
+    }
+    event->accept();
+}
+
+void DataAnalysisView::leaveEvent(QEvent *)
+{
+    cancelTooltip();
+    hoverX = -1;
+    unsetCursor();
+    QToolTip::hideText();
+    update();
+}
+
+void DataAnalysisView::cancelTooltip()
+{
+    tooltipTimer.stop();
+    QToolTip::hideText();
+}
+
+void DataAnalysisView::hideEvent(QHideEvent *event)
+{
+    cancelTooltip();
+    QWidget::hideEvent(event);
+}
+
+RVA DataAnalysisView::nearestMarker(qreal x) const
+{
+    qreal distance = 5;
+    RVA result = addressAt(x);
+    for (const auto &marker : markers) {
+        if (markerEnabled[marker.type] && axisRange().contains(marker.range.start)) {
+            const qreal candidate = std::abs(x - xForAddress(marker.range.start));
+            if (candidate < distance) {
+                distance = candidate;
+                result = marker.range.start;
+            }
+        }
+    }
+    return result;
+}
+
+void DataAnalysisView::showTooltip()
+{
+    if (!isVisible() || drag != None || !plotRect().contains(hoverPosition)) {
+        return;
+    }
+    const RVA address = addressAt(hoverPosition.x());
+    if (address == RVA_INVALID) {
+        return;
+    }
+    QString tip = RAddressString(address);
+    for (const auto &sample : samples) {
+        if (!sample.range.contains(address)) {
+            continue;
+        }
+        tip += tr("\nBucket: %1 – %2 (%3 bytes)\nRead %4 of %5 mapped bytes")
+                   .arg(RAddressString(sample.range.start), RAddressString(sample.range.end - 1))
+                   .arg(sample.range.size())
+                   .arg(sample.bytes)
+                   .arg(sample.covered);
+        if (sample.bytes) {
+            for (int metric : metrics) {
+                tip += QString("\n%1: %2")
+                           .arg(metricName(metric), metricValue(metric, sample.values[metric]));
+            }
+        } else {
+            tip += tr("\nNo readable data");
+        }
+        break;
+    }
+    int found = 0;
+    for (const auto &marker : markers) {
+        if (markerEnabled[marker.type]
+            && (marker.range.contains(address)
+                || std::abs(xForAddress(marker.range.start) - hoverPosition.x()) < 5)) {
+            tip += QString("\n%1: %2 @ %3")
+                       .arg(
+                           markerName(marker.type),
+                           marker.name.left(160),
+                           RAddressString(marker.range.start));
+            if (++found == 12) {
+                break;
+            }
+        }
+    }
+    QToolTip::showText(mapToGlobal(hoverPosition), tip.toHtmlEscaped().replace('\n', "<br>"), this);
+}
+
+void DataAnalysisView::contextMenuEvent(QContextMenuEvent *event)
+{
+    cancelTooltip();
+    if (axisRange().valid()) {
+        emit contextRequested(nearestMarker(event->pos().x()), event->globalPos());
+        event->accept();
+    }
+}

src/widgets/DataAnalysisView.h

@@ -0,0 +1,88 @@
+#ifndef DATAANALYSISVIEW_H
+#define DATAANALYSISVIEW_H
+
+#include "common/DataAnalysis.h"
+
+#include <QColor>
+#include <QTimer>
+#include <QWidget>
+
+class DataAnalysisView : public QWidget
+{
+    Q_OBJECT
+
+public:
+    enum MarkerType { Section, Segment, Map, Flag, Comment, MarkerCount };
+    enum Style { Lines, Areas, Bars };
+    struct Marker
+    {
+        DataAnalysis::Range range;
+        QString name;
+        MarkerType type;
+    };
+
+    explicit DataAnalysisView(bool overview, QWidget *parent = nullptr);
+    static QString metricName(int metric);
+    static QString metricDescription(int metric);
+    static QString metricValue(int metric, double value);
+    static QString markerName(MarkerType type);
+
+    DataAnalysis::Range domain;
+    DataAnalysis::Range visibleRange;
+    DataAnalysis::Range selection;
+    QVector<DataAnalysis::Sample> samples;
+    QVector<Marker> markers;
+    QVector<int> metrics = {DataAnalysis::Entropy, DataAnalysis::Printable, DataAnalysis::Zero};
+    std::array<QColor, DataAnalysis::Count> colors;
+    std::array<bool, MarkerCount> markerEnabled = {true, false, false, true, true};
+    RVA seekAddress = RVA_INVALID;
+    Style style = Areas;
+    bool separateTracks = false;
+    bool loading = false;
+
+    QRectF plotRect() const;
+    RVA addressAt(qreal x) const;
+    qreal xForAddress(RVA address) const;
+    void zoom(double factor, RVA anchor);
+    void pan(int direction);
+
+signals:
+    void seekRequested(RVA address);
+    void selectionRequested(RVA start, RVA end); // Half-open.
+    void rangeRequested(RVA start, RVA end);     // Half-open.
+    void contextRequested(RVA address, QPoint globalPosition);
+
+protected:
+    bool event(QEvent *) override;
+    void paintEvent(QPaintEvent *) override;
+    void mousePressEvent(QMouseEvent *) override;
+    void mouseMoveEvent(QMouseEvent *) override;
+    void mouseReleaseEvent(QMouseEvent *) override;
+    void mouseDoubleClickEvent(QMouseEvent *) override;
+    void wheelEvent(QWheelEvent *) override;
+    void keyPressEvent(QKeyEvent *) override;
+    void leaveEvent(QEvent *) override;
+    void hideEvent(QHideEvent *) override;
+    void contextMenuEvent(QContextMenuEvent *) override;
+
+private:
+    bool overview;
+    enum Drag { None, Select, Move, LeftEdge, RightEdge };
+    Drag drag = None;
+    QPoint pressPosition;
+    RVA pressAddress = 0;
+    DataAnalysis::Range pressRange;
+    DataAnalysis::Range dragSelection;
+    int hoverX = -1;
+    QTimer tooltipTimer;
+    QPoint hoverPosition;
+
+    DataAnalysis::Range axisRange() const;
+    RVA nearestMarker(qreal x) const;
+    void pinchZoom(qreal scaleFactor, qreal x);
+    void updateDrag(QPoint position);
+    void showTooltip();
+    void cancelTooltip();
+};
+
+#endif

src/widgets/DataAnalysisWidget.cpp

@@ -0,0 +1,966 @@
+#include "DataAnalysisWidget.h"
+#include "common/IaitoSeekable.h"
+#include "core/MainWindow.h"
+#include "dialogs/CommentsDialog.h"
+#include "dialogs/FlagDialog.h"
+#include "ui_DataAnalysisWidget.h"
+
+#include <QActionGroup>
+#include <QApplication>
+#include <QCheckBox>
+#include <QClipboard>
+#include <QColorDialog>
+#include <QDialogButtonBox>
+#include <QElapsedTimer>
+#include <QFileDialog>
+#include <QFormLayout>
+#include <QJsonArray>
+#include <QJsonObject>
+#include <QLineEdit>
+#include <QListWidget>
+#include <QMenu>
+#include <QMessageBox>
+#include <QPushButton>
+#include <QSaveFile>
+#include <QScrollArea>
+#include <QSet>
+#include <QTextStream>
+#include <QToolButton>
+
+#include <algorithm>
+
+using namespace DataAnalysis;
+
+namespace {
+RVA number(const QJsonObject &object, const char *key)
+{
+    return object[QLatin1String(key)].toVariant().toULongLong();
+}
+
+QByteArray readData(RVA address, int length)
+{
+    auto core = Core()->core();
+    QByteArray bytes(length, '\0');
+    int count = 0;
+    while (count < length) {
+        // nread distinguishes short/failed reads from actual 0xff bytes. A read
+        // can end at a submap boundary even when the following map is readable.
+        const int n = r_io_nread_at(
+            core->io,
+            address + count,
+            reinterpret_cast<ut8 *>(bytes.data()) + count,
+            length - count);
+        if (n <= 0) {
+            break;
+        }
+        count += n;
+    }
+    bytes.resize(count);
+    return bytes;
+}
+} // namespace
+
+DataAnalysisWidget::DataAnalysisWidget(MainWindow *main)
+    : AddressableDockWidget(main)
+    , ui(new Ui::DataAnalysisWidget)
+{
+    setObjectName("DataAnalysisWidget");
+    updateWindowTitle();
+    auto *contents = new QWidget(this);
+    ui->setupUi(contents);
+    ui->legend->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
+    setWidget(contents);
+    plot = new DataAnalysisView(false, contents);
+    plot->setObjectName("analysisPlot");
+    overview = new DataAnalysisView(true, contents);
+    overview->setObjectName("analysisOverview");
+    overview->setFixedHeight(80);
+    auto *scroll = new QScrollArea(contents);
+    scroll->setWidgetResizable(true);
+    scroll->setFrameShape(QFrame::NoFrame);
+    scroll->setWidget(plot);
+    ui->plotLayout->addWidget(scroll, 1);
+    ui->plotLayout->addWidget(overview);
+    ui->verticalLayout->setStretch(3, 1);
+    setupActions();
+    updateColors();
+
+    refreshDeferrer = createRefreshDeferrer([this]() { reloadTimer.start(); });
+    reloadTimer.setSingleShot(true);
+    reloadTimer.setInterval(100);
+    rangeTimer.setSingleShot(true);
+    rangeTimer.setInterval(80);
+    sampleTimer.setInterval(0);
+    connect(&reloadTimer, &QTimer::timeout, this, &DataAnalysisWidget::reload);
+    connect(&rangeTimer, &QTimer::timeout, this, [this]() {
+        if (!samplingOverview) {
+            beginSampling(false);
+        }
+    });
+    connect(&sampleTimer, &QTimer::timeout, this, &DataAnalysisWidget::sampleBatch);
+    connect(plot, &DataAnalysisView::seekRequested, seekable, &IaitoSeekable::seek);
+    connect(plot, &DataAnalysisView::selectionRequested, this, [this](RVA start, RVA end) {
+        selectRange({start, end}, true);
+    });
+    for (auto *view : {plot, overview}) {
+        connect(view, &DataAnalysisView::rangeRequested, this, [this](RVA start, RVA end) {
+            setRange({start, end});
+        });
+        connect(view, &DataAnalysisView::contextRequested, this, &DataAnalysisWidget::showContextMenu);
+    }
+    connect(seekable, &IaitoSeekable::seekableSeekChanged, this, &DataAnalysisWidget::onSeekChanged);
+    connect(Core(), &IaitoCore::addressRangeSelectionChanged, this, [this](RVA start, RVA end) {
+        if (!publishingSelection && seekable->isSynchronized()
+            && Config()->getAddressRangeSelectionSyncEnabled()) {
+            selectRange(
+                start != RVA_INVALID && end != RVA_INVALID && end >= start ? Range{start, end + 1}
+                                                                           : Range{},
+                false);
+        }
+    });
+    connect(Core(), &IaitoCore::refreshAll, this, &DataAnalysisWidget::scheduleReload);
+    connect(Core(), &IaitoCore::codeRebased, this, &DataAnalysisWidget::scheduleReload);
+    connect(Core(), &IaitoCore::ioModeChanged, this, &DataAnalysisWidget::scheduleReload);
+    connect(Core(), &IaitoCore::ioCacheChanged, this, &DataAnalysisWidget::scheduleReload);
+    connect(Core(), &IaitoCore::flagsChanged, this, &DataAnalysisWidget::scheduleReload);
+    connect(Core(), &IaitoCore::commentsChanged, this, &DataAnalysisWidget::scheduleReload);
+    connect(Core(), &IaitoCore::refreshCodeViews, this, &DataAnalysisWidget::scheduleReload);
+    connect(Core(), &IaitoCore::instructionChanged, this, &DataAnalysisWidget::scheduleReload);
+    connect(Core(), &IaitoCore::debugTaskStateChanged, this, &DataAnalysisWidget::scheduleReload);
+    connect(Config(), &Configuration::colorsUpdated, this, &DataAnalysisWidget::updateColors);
+    connect(this, &QDockWidget::visibilityChanged, this, [this](bool visible) {
+        if (!visible) {
+            metadataDirty |= sampleTimer.isActive() || rangeTimer.isActive();
+            sampleTimer.stop();
+            rangeTimer.stop();
+            reloadTimer.stop();
+        } else if (metadataDirty) {
+            scheduleReload();
+        }
+    });
+    scheduleReload();
+}
+
+DataAnalysisWidget::~DataAnalysisWidget() = default;
+
+QWidget *DataAnalysisWidget::widgetToFocusOnRaise()
+{
+    return plot;
+}
+
+void DataAnalysisWidget::setupActions()
+{
+    auto menuButton = [this](const QString &label, QMenu *menu) {
+        auto *button = new QToolButton(ui->toolbar);
+        button->setText(label);
+        button->setPopupMode(QToolButton::InstantPopup);
+        button->setMenu(menu);
+        ui->toolbar->addWidget(button);
+    };
+    auto *ranges = new QMenu(this);
+    ranges->addAction(tr("All data"), this, [this]() { setRange(plot->domain); });
+    ranges->addAction(tr("Current section"), this, [this]() {
+        fitMarker(DataAnalysisView::Section);
+    });
+    ranges->addAction(tr("Current segment"), this, [this]() {
+        fitMarker(DataAnalysisView::Segment);
+    });
+    ranges->addAction(tr("Current map"), this, [this]() { fitMarker(DataAnalysisView::Map); });
+    ranges->addAction(tr("Current block"), this, [this]() {
+        const int size = Core()->core()->blocksize;
+        setRange(sizedRange(seekable->getOffset(), qMax(1, size)));
+    });
+    selectionAction
+        = ranges->addAction(tr("Fit selection"), this, &DataAnalysisWidget::fitSelection);
+    selectionAction->setEnabled(false);
+    ranges->addSeparator();
+    ranges->addAction(tr("Edit range…"), this, &DataAnalysisWidget::editRange);
+    menuButton(tr("Range"), ranges);
+    auto *algorithms = new QMenu(this);
+    for (int i = 0; i < Count; ++i) {
+        auto *action = algorithms->addAction(DataAnalysisView::metricName(i));
+        action->setCheckable(true);
+        action->setChecked(plot->metrics.contains(i));
+        metricActions[i] = action;
+        action->setToolTip(DataAnalysisView::metricDescription(i));
+        auto *entry = ui->legend->addAction(DataAnalysisView::metricName(i));
+        entry->setToolTip(
+            DataAnalysisView::metricDescription(i) + tr("\nClick to configure this algorithm."));
+        legendActions[i] = entry;
+        connect(entry, &QAction::triggered, this, [this, i]() { configureMetric(i); });
+        connect(action, &QAction::toggled, this, &DataAnalysisWidget::updateMetrics);
+    }
+    menuButton(tr("Algorithms"), algorithms);
+    ui->toolbar
+        ->addAction(
+            tr("+"),
+            this,
+            [this]() { plot->zoom(0.5, plot->visibleRange.start + plot->visibleRange.size() / 2); })
+        ->setToolTip(tr("Zoom in (+)"));
+    ui->toolbar
+        ->addAction(
+            tr("−"),
+            this,
+            [this]() { plot->zoom(2, plot->visibleRange.start + plot->visibleRange.size() / 2); })
+        ->setToolTip(tr("Zoom out (-)"));
+    ui->toolbar->addAction(tr("Fit"), this, [this]() { setRange(plot->domain); })
+        ->setToolTip(tr("Fit all data (Home)"));
+    followAction = ui->toolbar->addAction(tr("Follow"));
+    followAction->setCheckable(true);
+    followAction->setChecked(true);
+    followAction->setToolTip(tr("Pan to keep the current disassembly or hexdump address visible"));
+    connect(followAction, &QAction::toggled, this, [this](bool checked) {
+        if (checked) {
+            onSeekChanged(seekable->getOffset());
+        }
+    });
+
+    optionsMenu = new QMenu(this);
+    tracksAction = optionsMenu->addAction(tr("Separate algorithm tracks"));
+    tracksAction->setCheckable(true);
+    connect(tracksAction, &QAction::toggled, this, [this](bool checked) {
+        plot->separateTracks = checked;
+        plot->setMinimumHeight(checked ? qMax(180, int(plot->metrics.size()) * 90) : 180);
+        plot->update();
+    });
+    auto *styles = optionsMenu->addMenu(tr("Drawing style"));
+    auto *styleGroup = new QActionGroup(styles);
+    const QStringList styleNames = {tr("Lines"), tr("Filled lines"), tr("Vertical bars")};
+    for (int i = 0; i < styleNames.size(); ++i) {
+        auto *action = styles->addAction(styleNames[i]);
+        styleGroup->addAction(action);
+        action->setCheckable(true);
+        action->setData(i);
+        action->setChecked(i == plot->style);
+        connect(action, &QAction::triggered, this, [this, i]() {
+            plot->style = static_cast<DataAnalysisView::Style>(i);
+            plot->update();
+        });
+    }
+    styles->setObjectName("analysisStyles");
+    auto *colors = optionsMenu->addMenu(tr("Colors"));
+    auto *colorGroup = new QActionGroup(colors);
+    const QStringList modes
+        = {tr("Greyscale"), tr("Rainbow"), tr("Theme single color"), tr("Theme palette")};
+    for (int i = 0; i < modes.size(); ++i) {
+        auto *action = colors->addAction(modes[i]);
+        colorGroup->addAction(action);
+        action->setCheckable(true);
+        action->setData(i);
+        action->setChecked(i == colorMode);
+        connect(action, &QAction::triggered, this, [this, i]() {
+            colorMode = i;
+            updateColors();
+        });
+    }
+    colors->setObjectName("analysisColors");
+    colors->addSeparator();
+    auto *custom = colors->addMenu(tr("Customize algorithm colors"));
+    for (int i = 0; i < Count; ++i) {
+        custom->addAction(DataAnalysisView::metricName(i), this, [this, i]() {
+            const QColor color
+                = QColorDialog::getColor(plot->colors[i], this, DataAnalysisView::metricName(i));
+            if (color.isValid()) {
+                customColors[i] = color;
+                updateColors();
+            }
+        });
+    }
+    custom->addSeparator();
+    custom->addAction(tr("Reset custom colors"), this, [this]() {
+        customColors.fill(QColor());
+        updateColors();
+    });
+    auto *markers = optionsMenu->addMenu(tr("Markers"));
+    markers->setObjectName("analysisMarkers");
+    for (int i = 0; i < DataAnalysisView::MarkerCount; ++i) {
+        auto *action = markers->addAction(
+            DataAnalysisView::markerName(static_cast<DataAnalysisView::MarkerType>(i)));
+        action->setCheckable(true);
+        action->setData(i);
+        action->setChecked(plot->markerEnabled[i]);
+        connect(action, &QAction::toggled, this, [this, i](bool checked) {
+            plot->markerEnabled[i] = overview->markerEnabled[i] = checked;
+            plot->update();
+            overview->update();
+        });
+    }
+    auto *samples = optionsMenu->addMenu(tr("Resolution (buckets)"));
+    samples->setObjectName("analysisResolution");
+    auto *sampleGroup = new QActionGroup(samples);
+    for (int n : {32, 64, 128, 256, 512, 1024, 2048, 4096}) {
+        auto *action = samples->addAction(QString::number(n));
+        sampleGroup->addAction(action);
+        action->setCheckable(true);
+        action->setData(n);
+        action->setChecked(n == resolution);
+        connect(action, &QAction::triggered, this, [this, n]() {
+            resolution = n;
+            beginSampling(samplingOverview);
+        });
+    }
+    optionsMenu->addSeparator();
+    optionsMenu->addAction(&syncAction);
+    optionsMenu->addAction(tr("Find marker…"), this, &DataAnalysisWidget::findMarker);
+    optionsMenu->addAction(tr("Refresh"), this, &DataAnalysisWidget::scheduleReload);
+    exportAction = optionsMenu->addAction(
+        tr("Export visible samples as CSV…"), this, &DataAnalysisWidget::exportCsv);
+    exportAction->setEnabled(false);
+    menuButton(tr("Options"), optionsMenu);
+    ui->legend->setToolTip(
+        tr("Click a legend entry to configure its color and visibility."
+           " Overlaid values use a 0–100% scale; entropy is divided by 8."
+           " Separate tracks use native units."));
+    updateMetrics();
+}
+
+void DataAnalysisWidget::updateMetrics()
+{
+    plot->metrics.clear();
+    for (int i = 0; i < Count; ++i) {
+        legendActions[i]->setVisible(metricActions[i]->isChecked());
+        if (metricActions[i]->isChecked()) {
+            plot->metrics.append(i);
+        }
+    }
+    overview->metrics = plot->metrics;
+    plot->setMinimumHeight(plot->separateTracks ? qMax(180, int(plot->metrics.size()) * 90) : 180);
+    plot->update();
+}
+
+void DataAnalysisWidget::updateColors()
+{
+    const char *keys[]
+        = {"gui.navbar.code",
+           "gui.navbar.str",
+           "gui.navbar.data",
+           "num",
+           "flag",
+           "comment",
+           "flow",
+           "func_var",
+           "reg",
+           "invalid",
+           "other"};
+    QColor base = Config()->getColor("gui.navbar.code");
+    if (!base.isValid()) {
+        base = QColor(120, 150, 230);
+    }
+    QSet<QRgb> used;
+    for (int i = 0; i < Count; ++i) {
+        QColor color;
+        switch (colorMode) {
+        case 0:
+            color = QColor::fromHsv(0, 0, 85 + i * 16);
+            break;
+        case 1:
+            color = QColor::fromHsv((270 + i * 137) % 360, 165, 220);
+            break;
+        case 2:
+            color = QColor::fromHsv(qMax(0, base.hue()), 70 + i * 16, 235 - i * 9);
+            break;
+        default:
+            color = Config()->getColor(keys[i]);
+            if (!color.isValid() || used.contains(color.rgb())
+                || color == palette().color(QPalette::Base)) {
+                color = QColor::fromHsv((270 + i * 137) % 360, 155, 210);
+            }
+            break;
+        }
+        if (customColors[i].isValid()) {
+            color = customColors[i];
+        }
+        used.insert(color.rgb());
+        plot->colors[i] = overview->colors[i] = color;
+        QPixmap swatch(12, 12);
+        swatch.fill(color);
+        metricActions[i]->setIcon(QIcon(swatch));
+        legendActions[i]->setIcon(QIcon(swatch));
+    }
+    plot->update();
+    overview->update();
+}
+
+void DataAnalysisWidget::configureMetric(int metric)
+{
+    QDialog dialog(this);
+    dialog.setObjectName("analysisMetricSettings");
+    dialog.setWindowTitle(tr("%1 settings").arg(DataAnalysisView::metricName(metric)));
+    QFormLayout layout(&dialog);
+    QLabel description(DataAnalysisView::metricDescription(metric));
+    description.setWordWrap(true);
+    description.setMaximumWidth(420);
+    QCheckBox visible(tr("Show this algorithm"));
+    visible.setObjectName("metricVisible");
+    visible.setChecked(metricActions[metric]->isChecked());
+    QColor chosen = customColors[metric];
+    QPushButton colorButton(tr("Change color…"));
+    colorButton.setIcon(legendActions[metric]->icon());
+    QPushButton resetButton(tr("Use palette color"));
+    QDialogButtonBox buttons(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
+    layout.addRow(&description);
+    layout.addRow(tr("Color:"), &colorButton);
+    layout.addRow(&resetButton);
+    layout.addRow(&visible);
+    layout.addRow(&buttons);
+    connect(&colorButton, &QPushButton::clicked, &dialog, [&]() {
+        const QColor color = QColorDialog::getColor(
+            chosen.isValid() ? chosen : plot->colors[metric],
+            &dialog,
+            DataAnalysisView::metricName(metric));
+        if (color.isValid()) {
+            chosen = color;
+            QPixmap swatch(12, 12);
+            swatch.fill(color);
+            colorButton.setIcon(QIcon(swatch));
+            colorButton.setText(color.name());
+        }
+    });
+    connect(&resetButton, &QPushButton::clicked, &dialog, [&]() {
+        chosen = QColor();
+        colorButton.setIcon(QIcon());
+        colorButton.setText(tr("Palette default"));
+    });
+    connect(&buttons, &QDialogButtonBox::accepted, &dialog, &QDialog::accept);
+    connect(&buttons, &QDialogButtonBox::rejected, &dialog, &QDialog::reject);
+    if (dialog.exec() == QDialog::Accepted) {
+        customColors[metric] = chosen;
+        metricActions[metric]->setChecked(visible.isChecked());
+        updateColors();
+    }
+}
+
+void DataAnalysisWidget::scheduleReload()
+{
+    metadataDirty = true;
+    if (refreshDeferrer->attemptRefresh(nullptr)) {
+        sampleTimer.stop();
+        reloadTimer.start();
+    }
+}
+
+void DataAnalysisWidget::loadMetadata()
+{
+    using View = DataAnalysisView;
+    virtualAddresses = Core()->getConfigb("io.va");
+    readable.clear();
+    plot->markers.clear();
+    auto addMarker = [this](Range range, const QString &name, View::MarkerType type) {
+        if (range.valid()) {
+            plot->markers.append({range, name, type});
+        }
+    };
+    for (const auto &value : Core()->cmdj("omj").array()) {
+        const QJsonObject map = value.toObject();
+        const RVA start = number(map, "from"), last = number(map, "to");
+        const Range range = last >= start ? Range{start, last == RVA_MAX ? RVA_MAX : last + 1}
+                                          : Range{};
+        if (virtualAddresses) {
+            addMarker(range, map["name"].toString(), View::Map);
+            if (range.valid() && map["perm"].toString().contains('r')) {
+                readable.append(range);
+            }
+        }
+    }
+    if (!virtualAddresses) {
+        auto core = Core()->core();
+        const RVA size = r_io_size(core->io);
+        if (size != RVA_MAX && size) {
+            readable.append({0, size});
+        }
+    }
+    readable = mergeRanges(readable);
+    const Range domain = readable.isEmpty() ? Range{}
+                                            : Range{readable.first().start, readable.last().end};
+    const bool changed = domain != plot->domain;
+    plot->domain = overview->domain = domain;
+    if (changed || !plot->visibleRange.valid()) {
+        plot->visibleRange = overview->visibleRange = domain;
+    }
+    for (const auto &entry :
+         {qMakePair(QString("iSj"), View::Section), qMakePair(QString("iSSj"), View::Segment)}) {
+        const QJsonDocument document = Core()->cmdj(entry.first);
+        const QJsonArray objects
+            = document.isArray()
+                  ? document.array()
+                  : document.object()[entry.second == View::Section ? "sections" : "segments"]
+                        .toArray();
+        for (const auto &value : objects) {
+            const QJsonObject object = value.toObject();
+            const RVA start = number(object, virtualAddresses ? "vaddr" : "paddr");
+            const RVA size = number(object, virtualAddresses ? "vsize" : "size");
+            addMarker(sizedRange(start, size), object["name"].toString(), entry.second);
+        }
+    }
+    // @F temporarily selects all flag spaces without changing the user's space.
+    for (const auto &value : Core()->cmdj("fj @F:*").array()) {
+        const QJsonObject flag = value.toObject();
+        const RVA address = number(flag, flag.contains("offset") ? "offset" : "addr");
+        addMarker(
+            sizedRange(address, qMax<RVA>(1, number(flag, "size"))),
+            flag["name"].toString(),
+            View::Flag);
+    }
+    for (const auto &comment : Core()->getAllComments("CCu")) {
+        addMarker(sizedRange(comment.offset, 1), comment.name, View::Comment);
+    }
+    std::stable_sort(
+        plot->markers.begin(),
+        plot->markers.end(),
+        [](const View::Marker &a, const View::Marker &b) { return a.range.start < b.range.start; });
+    overview->markers = plot->markers;
+    metadataDirty = false;
+}
+
+void DataAnalysisWidget::reload()
+{
+    if (!refreshDeferrer->attemptRefresh(nullptr) || Core()->isDebugTaskInProgress()) {
+        return;
+    }
+    sampleTimer.stop();
+    rangeTimer.stop();
+    loadMetadata();
+    plot->seekAddress = overview->seekAddress = seekable->getOffset();
+    if (requestedRange.valid()) {
+        const Range requested = intersect(requestedRange, plot->domain);
+        if (requested.valid()) {
+            plot->visibleRange = overview->visibleRange = requested;
+        }
+        requestedRange = {};
+    }
+    if (seekable->isSynchronized() && Config()->getAddressRangeSelectionSyncEnabled()
+        && Core()->hasAddressRangeSelection()) {
+        selectRange(
+            {Core()->getAddressRangeSelectionStart(), Core()->getAddressRangeSelectionEnd() + 1},
+            false);
+    }
+    plot->samples.clear();
+    overview->samples.clear();
+    beginSampling(true);
+}
+
+void DataAnalysisWidget::beginSampling(bool mini)
+{
+    rangeTimer.stop();
+    sampleTimer.stop();
+    if (!isVisibleToUser()) {
+        metadataDirty = true;
+        refreshDeferrer->attemptRefresh(nullptr);
+        return;
+    }
+    samplingOverview = mini;
+    pendingRange = mini ? plot->domain : plot->visibleRange;
+    pending.clear();
+    nextBucket = 0;
+    plot->loading = pendingRange.valid();
+    exportAction->setEnabled(false);
+    if (pendingRange.valid()) {
+        const int count = int(qMin<RVA>(mini ? 256 : resolution, pendingRange.size()));
+        pending.resize(count);
+        sampleTimer.start();
+    }
+    updateLabels();
+    plot->update();
+    overview->update();
+}
+
+void DataAnalysisWidget::sampleBatch()
+{
+    if (!isVisibleToUser() || Core()->isDebugTaskInProgress()) {
+        sampleTimer.stop();
+        metadataDirty = true;
+        refreshDeferrer->attemptRefresh(nullptr);
+        return;
+    }
+    QElapsedTimer timer;
+    timer.start();
+    // Yield to navigation and painting every few milliseconds. A range change
+    // cancels the old job; no stale worker result can overwrite the new range.
+    do {
+        pending[nextBucket]
+            = sample(bucket(pendingRange, nextBucket, pending.size()), readable, readData);
+        ++nextBucket;
+    } while (nextBucket < pending.size() && timer.elapsed() < 6);
+    if (nextBucket < pending.size()) {
+        ui->statusLabel->setText(tr("Analyzing %1… %2%")
+                                     .arg(samplingOverview ? tr("overview") : tr("visible range"))
+                                     .arg(nextBucket * 100 / pending.size()));
+        return;
+    }
+    sampleTimer.stop();
+    if (samplingOverview) {
+        overview->samples = pending;
+        overview->update();
+        beginSampling(false);
+    } else {
+        plot->samples = pending;
+        plot->loading = false;
+        exportAction->setEnabled(!plot->samples.isEmpty());
+        updateLabels();
+        plot->update();
+    }
+}
+
+void DataAnalysisWidget::setRange(Range range)
+{
+    range = intersect(range, plot->domain);
+    if (!range.valid() || range == plot->visibleRange) {
+        return;
+    }
+    plot->visibleRange = overview->visibleRange = range;
+    plot->samples.clear();
+    plot->loading = true;
+    exportAction->setEnabled(false);
+    if (!samplingOverview) {
+        sampleTimer.stop();
+    }
+    rangeTimer.start();
+    updateLabels();
+    plot->update();
+    overview->update();
+}
+
+void DataAnalysisWidget::showRange(RVA start, RVA end)
+{
+    if (start == RVA_INVALID || end == RVA_INVALID || end < start) {
+        return;
+    }
+    requestedRange = {start, end + 1};
+    raiseMemoryWidget();
+    seekable->seek(start);
+    if (metadataDirty) {
+        scheduleReload();
+    } else {
+        setRange(requestedRange);
+        requestedRange = {};
+    }
+}
+
+void DataAnalysisWidget::onSeekChanged(RVA address)
+{
+    plot->seekAddress = overview->seekAddress = address;
+    if (followAction->isChecked() && plot->domain.contains(address)
+        && !plot->visibleRange.contains(address)) {
+        setRange(centered(plot->domain, address, plot->visibleRange.size()));
+    }
+    updateLabels();
+    plot->update();
+    overview->update();
+}
+
+void DataAnalysisWidget::selectRange(Range range, bool publish)
+{
+    plot->selection = overview->selection = range;
+    selectionAction->setEnabled(range.valid());
+    if (publish && seekable->isSynchronized() && Config()->getAddressRangeSelectionSyncEnabled()) {
+        publishingSelection = true;
+        if (range.valid()) {
+            Core()->setAddressRangeSelection(range.start, range.end - 1);
+        } else {
+            Core()->clearAddressRangeSelection();
+        }
+        publishingSelection = false;
+    }
+    updateLabels();
+    plot->update();
+    overview->update();
+}
+
+void DataAnalysisWidget::updateLabels()
+{
+    const Range range = plot->visibleRange;
+    if (!range.valid()) {
+        ui->rangeLabel->setText(tr("No readable data in the current address space"));
+        ui->statusLabel->setText(tr("Open a file or refresh after mapping data."));
+        return;
+    }
+    QString text = tr("%1: %2 – %3 · %4 bytes · Cursor %5")
+                       .arg(
+                           virtualAddresses ? tr("Addresses") : tr("File offsets"),
+                           RAddressString(range.start),
+                           RAddressString(range.end - 1))
+                       .arg(range.size())
+                       .arg(RAddressString(seekable->getOffset()));
+    if (plot->selection.valid()) {
+        text += tr("\nSelection: %1 – %2 · %3 bytes")
+                    .arg(
+                        RAddressString(plot->selection.start),
+                        RAddressString(plot->selection.end - 1))
+                    .arg(plot->selection.size());
+    }
+    ui->rangeLabel->setText(text);
+    if (plot->loading) {
+        ui->statusLabel->setText(tr("Analyzing…"));
+    } else {
+        RVA bytes = 0, covered = 0;
+        for (const auto &sample : plot->samples) {
+            bytes += sample.bytes;
+            covered += sample.covered;
+        }
+        if (!bytes) {
+            ui->statusLabel->setText(tr("No readable bytes in the visible range."));
+            return;
+        }
+        ui->statusLabel->setText(
+            tr("%1 buckets · %2 / %3 mapped bytes read (%4) · Overview: entropy")
+                .arg(plot->samples.size())
+                .arg(bytes)
+                .arg(covered)
+                .arg(bytes == covered ? tr("complete") : tr("sampled or unreadable")));
+        ui->statusLabel->setToolTip(
+            tr("Each bucket reads up to 4096 bytes from centered windows in readable spans."
+               " Zoom in for complete coverage. Unmapped bytes are excluded."
+               " Shannon entropy: 0–8 bits/byte. Overlays use normalized percentages."));
+    }
+}
+
+void DataAnalysisWidget::fitSelection()
+{
+    if (plot->selection.valid()) {
+        setRange(plot->selection);
+    }
+}
+
+void DataAnalysisWidget::fitMarker(DataAnalysisView::MarkerType type)
+{
+    Range best;
+    for (const auto &marker : plot->markers) {
+        if (marker.type == type && marker.range.contains(seekable->getOffset())
+            && (!best.valid() || marker.range.size() < best.size())) {
+            best = marker.range;
+        }
+    }
+    if (best.valid()) {
+        setRange(best);
+    } else {
+        ui->statusLabel->setText(
+            tr("No %1 contains the current address.").arg(DataAnalysisView::markerName(type)));
+    }
+}
+
+void DataAnalysisWidget::editRange()
+{
+    QDialog dialog(this);
+    dialog.setWindowTitle(tr("Data analysis range"));
+    QFormLayout layout(&dialog);
+    QLineEdit start(RAddressString(plot->visibleRange.start));
+    QLineEdit end(RAddressString(plot->visibleRange.valid() ? plot->visibleRange.end - 1 : 0));
+    QLabel hint(tr("Enter addresses or radare2 expressions. Both endpoints are inclusive."));
+    hint.setWordWrap(true);
+    QLabel error;
+    error.setWordWrap(true);
+    QDialogButtonBox buttons(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
+    layout.addRow(&hint);
+    layout.addRow(tr("Start:"), &start);
+    layout.addRow(tr("End (inclusive):"), &end);
+    layout.addRow(&error);
+    layout.addRow(&buttons);
+    connect(&buttons, &QDialogButtonBox::rejected, &dialog, &QDialog::reject);
+    connect(&buttons, &QDialogButtonBox::accepted, &dialog, [&]() {
+        RVA first, last;
+        if (!Core()->tryMath(start.text(), first) || !Core()->tryMath(end.text(), last)
+            || first == RVA_INVALID || last == RVA_INVALID || first > last) {
+            error.setText(tr("Enter a valid start and an end greater than or equal to it."));
+            return;
+        }
+        const Range requested{first, last + 1};
+        if (intersect(requested, plot->domain) != requested) {
+            error.setText(
+                tr("The range must be within %1 – %2.")
+                    .arg(RAddressString(plot->domain.start), RAddressString(plot->domain.end - 1)));
+            return;
+        }
+        setRange(requested);
+        dialog.accept();
+    });
+    dialog.exec();
+}
+
+void DataAnalysisWidget::findMarker()
+{
+    QDialog dialog(this);
+    dialog.setWindowTitle(tr("Find section, map, flag or comment"));
+    dialog.resize(620, 400);
+    QVBoxLayout layout(&dialog);
+    QLineEdit filter;
+    filter.setPlaceholderText(tr("Filter by name, comment, type or hexadecimal address…"));
+    QListWidget list;
+    QLabel hint(
+        tr("Activate a result to seek. Section, segment and map results also fit the range."
+           " Showing up to 500 matches."));
+    hint.setWordWrap(true);
+    QDialogButtonBox buttons(QDialogButtonBox::Close);
+    layout.addWidget(&filter);
+    layout.addWidget(&list);
+    layout.addWidget(&hint);
+    layout.addWidget(&buttons);
+    // Keep result indices stable while the modal loop receives metadata updates.
+    const auto markers = plot->markers;
+    auto fill = [&]() {
+        list.clear();
+        for (int i = 0; i < markers.size(); ++i) {
+            const auto &marker = markers[i];
+            const QString label = QString("%1 · %2 · %3")
+                                      .arg(
+                                          RAddressString(marker.range.start),
+                                          DataAnalysisView::markerName(marker.type),
+                                          marker.name);
+            if (label.contains(filter.text(), Qt::CaseInsensitive)) {
+                auto *item = new QListWidgetItem(label, &list);
+                item->setData(Qt::UserRole, i);
+                if (list.count() >= 500) {
+                    break;
+                }
+            }
+        }
+    };
+    connect(&filter, &QLineEdit::textChanged, &dialog, fill);
+    connect(&list, &QListWidget::itemActivated, &dialog, [&](QListWidgetItem *item) {
+        const int index = item->data(Qt::UserRole).toInt();
+        if (index < 0 || index >= markers.size()) {
+            return;
+        }
+        const auto marker = markers[index];
+        seekable->seek(marker.range.start);
+        if (marker.type <= DataAnalysisView::Map) {
+            setRange(marker.range);
+        } else if (!plot->visibleRange.contains(marker.range.start)) {
+            setRange(centered(plot->domain, marker.range.start, plot->visibleRange.size()));
+        }
+        dialog.accept();
+    });
+    connect(&buttons, &QDialogButtonBox::rejected, &dialog, &QDialog::reject);
+    fill();
+    dialog.exec();
+}
+
+void DataAnalysisWidget::showContextMenu(RVA address, QPoint position)
+{
+    QMenu menu(this);
+    menu.addAction(RAddressString(address))->setEnabled(false);
+    menu.addAction(tr("Seek here"), this, [this, address]() { seekable->seek(address); });
+    if (mainWindow) {
+        auto *showIn = mainWindow->createShowInMenu(&menu, address);
+        showIn->setTitle(tr("Show in"));
+        menu.addMenu(showIn);
+    }
+    menu.addAction(tr("Copy address"), this, [address]() {
+        QApplication::clipboard()->setText(RAddressString(address));
+    });
+    menu.addAction(tr("Add or edit comment…"), this, [this, address]() {
+        CommentsDialog::addOrEditComment(address, this);
+    });
+    const Range selection = plot->selection;
+    const RVA flagSize = selection.contains(address) ? selection.end - address : 1;
+    menu.addAction(tr("Add or edit flag…"), this, [this, address, flagSize]() {
+        FlagDialog dialog(address, flagSize, this);
+        dialog.exec();
+    });
+    menu.addSeparator();
+    menu.addAction(selectionAction);
+    menu.addAction(tr("Clear selection"), this, [this]() { selectRange({}, true); });
+    menu.addAction(tr("Edit range…"), this, &DataAnalysisWidget::editRange);
+    menu.addAction(tr("Find marker…"), this, &DataAnalysisWidget::findMarker);
+    menu.addAction(tr("Fit all data"), this, [this]() { setRange(plot->domain); });
+    menu.addSeparator();
+    menu.addAction(&syncAction);
+    menu.exec(position);
+}
+
+void DataAnalysisWidget::exportCsv()
+{
+    const auto samples = plot->samples;
+    const auto metrics = plot->metrics;
+    const QString path = QFileDialog::getSaveFileName(
+        this, tr("Export data analysis"), QString(), tr("CSV files (*.csv)"));
+    if (path.isEmpty()) {
+        return;
+    }
+    QSaveFile file(path);
+    if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
+        QMessageBox::warning(this, tr("Export failed"), file.errorString());
+        return;
+    }
+    QTextStream out(&file);
+    out << "start,end_exclusive,bytes_read,mapped_bytes";
+    for (int metric : metrics) {
+        QString name = DataAnalysisView::metricName(metric);
+        name.replace('"', "\"\"");
+        out << ",\"" << name << " (normalized 0-1)\"";
+    }
+    out << '\n';
+    for (const auto &sample : samples) {
+        out << RAddressString(sample.range.start) << ',' << RAddressString(sample.range.end) << ','
+            << sample.bytes << ',' << sample.covered;
+        for (int metric : metrics) {
+            out << ',';
+            if (sample.bytes) {
+                out << QString::number(sample.values[metric], 'g', 12);
+            }
+        }
+        out << '\n';
+    }
+    out.flush();
+    if (!file.commit()) {
+        QMessageBox::warning(this, tr("Export failed"), file.errorString());
+    }
+}
+
+QVariantMap DataAnalysisWidget::serializeViewProprties()
+{
+    auto properties = AddressableDockWidget::serializeViewProprties();
+    QVariantList metrics, colors, markers;
+    for (int i = 0; i < Count; ++i) {
+        if (metricActions[i]->isChecked()) {
+            metrics.append(i);
+        }
+        colors.append(customColors[i].isValid() ? customColors[i].name() : QString());
+    }
+    for (bool enabled : plot->markerEnabled) {
+        markers.append(enabled);
+    }
+    properties["metrics"] = metrics;
+    properties["colors"] = colors;
+    properties["markers"] = markers;
+    properties["style"] = int(plot->style);
+    properties["colorMode"] = colorMode;
+    properties["resolution"] = resolution;
+    properties["tracks"] = tracksAction->isChecked();
+    properties["follow"] = followAction->isChecked();
+    return properties;
+}
+
+void DataAnalysisWidget::deserializeViewProperties(const QVariantMap &properties)
+{
+    AddressableDockWidget::deserializeViewProperties(properties);
+    const QVariantList metrics
+        = properties.value("metrics", QVariantList{Entropy, Printable, Zero}).toList();
+    const QVariantList colors = properties.value("colors").toList();
+    for (int i = 0; i < Count; ++i) {
+        metricActions[i]->setChecked(metrics.contains(i));
+        customColors[i] = i < colors.size() ? QColor(colors[i].toString()) : QColor();
+    }
+    auto restoreMenu = [this](const char *name, int selected) {
+        for (auto *action : optionsMenu->findChild<QMenu *>(name)->actions()) {
+            if (action->isCheckable() && action->data().toInt() == selected) {
+                action->trigger();
+            }
+        }
+    };
+    restoreMenu("analysisStyles", qBound(0, properties.value("style", 1).toInt(), 2));
+    restoreMenu("analysisColors", qBound(0, properties.value("colorMode", 3).toInt(), 3));
+    int count = properties.value("resolution", 1024).toInt();
+    if (!QList<int>{32, 64, 128, 256, 512, 1024, 2048, 4096}.contains(count)) {
+        count = 1024;
+    }
+    restoreMenu("analysisResolution", count);
+    const QVariantList markers
+        = properties.value("markers", QVariantList{true, false, false, true, true}).toList();
+    for (auto *action : optionsMenu->findChild<QMenu *>("analysisMarkers")->actions()) {
+        const int index = action->data().toInt();
+        action->setChecked(index < markers.size() && markers[index].toBool());
+    }
+    tracksAction->setChecked(properties.value("tracks", false).toBool());
+    followAction->setChecked(properties.value("follow", true).toBool());
+    updateColors();
+}

src/widgets/DataAnalysisWidget.h

@@ -0,0 +1,81 @@
+#ifndef DATAANALYSISWIDGET_H
+#define DATAANALYSISWIDGET_H
+
+#include "AddressableDockWidget.h"
+#include "DataAnalysisView.h"
+
+#include <memory>
+#include <QTimer>
+
+namespace Ui {
+class DataAnalysisWidget;
+}
+class QMenu;
+
+class DataAnalysisWidget : public AddressableDockWidget
+{
+    Q_OBJECT
+
+public:
+    explicit DataAnalysisWidget(MainWindow *main);
+    ~DataAnalysisWidget() override;
+    QVariantMap serializeViewProprties() override;
+    void deserializeViewProperties(const QVariantMap &properties) override;
+
+    // Reusable entry point for other widgets. Both endpoints are inclusive.
+    void showRange(RVA start, RVA end);
+
+protected:
+    QString getWindowTitle() const override { return tr("Data Analysis"); }
+    QWidget *widgetToFocusOnRaise() override;
+
+private:
+    std::unique_ptr<Ui::DataAnalysisWidget> ui;
+    DataAnalysisView *plot;
+    DataAnalysisView *overview;
+    RefreshDeferrer *refreshDeferrer;
+    QTimer reloadTimer;
+    QTimer sampleTimer;
+    QTimer rangeTimer;
+    QVector<DataAnalysis::Range> readable;
+    QVector<DataAnalysis::Sample> pending;
+    DataAnalysis::Range pendingRange;
+    DataAnalysis::Range requestedRange;
+    int nextBucket = 0;
+    int resolution = 1024;
+    int colorMode = 3;
+    bool samplingOverview = false;
+    bool virtualAddresses = true;
+    bool metadataDirty = true;
+    bool publishingSelection = false;
+    QAction *followAction;
+    QAction *tracksAction;
+    QAction *selectionAction;
+    QAction *exportAction;
+    QMenu *optionsMenu;
+    std::array<QAction *, DataAnalysis::Count> metricActions;
+    std::array<QAction *, DataAnalysis::Count> legendActions;
+    std::array<QColor, DataAnalysis::Count> customColors;
+
+    void setupActions();
+    void scheduleReload();
+    void reload();
+    void loadMetadata();
+    void beginSampling(bool mini);
+    void sampleBatch();
+    void setRange(DataAnalysis::Range range);
+    void updateLabels();
+    void updateColors();
+    void updateMetrics();
+    void configureMetric(int metric);
+    void onSeekChanged(RVA address);
+    void selectRange(DataAnalysis::Range range, bool publish);
+    void fitSelection();
+    void editRange();
+    void fitMarker(DataAnalysisView::MarkerType type);
+    void findMarker();
+    void showContextMenu(RVA address, QPoint position);
+    void exportCsv();
+};
+
+#endif

src/widgets/DataAnalysisWidget.ui

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>DataAnalysisWidget</class>
+ <widget class="QWidget" name="DataAnalysisWidget">
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <property name="spacing"><number>4</number></property>
+   <property name="leftMargin"><number>4</number></property>
+   <property name="topMargin"><number>4</number></property>
+   <property name="rightMargin"><number>4</number></property>
+   <property name="bottomMargin"><number>4</number></property>
+   <item><widget class="QToolBar" name="toolbar"><property name="movable"><bool>false</bool></property></widget></item>
+   <item><widget class="QLabel" name="rangeLabel">
+    <property name="text"><string>Open a file to analyze its data</string></property>
+    <property name="wordWrap"><bool>true</bool></property>
+    <property name="textInteractionFlags"><set>Qt::TextSelectableByMouse</set></property>
+   </widget></item>
+   <item><widget class="QToolBar" name="legend"><property name="movable"><bool>false</bool></property></widget></item>
+   <item><layout class="QVBoxLayout" name="plotLayout"/></item>
+   <item><widget class="QLabel" name="statusLabel">
+    <property name="wordWrap"><bool>true</bool></property>
+    <property name="text"><string>Click to seek · Drag to select · Wheel or pinch to zoom · Shift+wheel to pan</string></property>
+    <property name="textInteractionFlags"><set>Qt::TextSelectableByMouse</set></property>
+   </widget></item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

src/widgets/DecompilerTextEdit.cpp

@@ -0,0 +1,408 @@
+#include "DecompilerTextEdit.h"
+
+#include <algorithm>
+#include <QAbstractTextDocumentLayout>
+#include <QMouseEvent>
+#include <QPainter>
+#include <QScopedValueRollback>
+#include <QSet>
+#include <QSignalBlocker>
+#include <QStyle>
+#include <QStyleOption>
+#include <QTextBlock>
+
+DecompilerTextEdit::DecompilerTextEdit(QWidget *parent)
+    : QPlainTextEdit(parent)
+    , foldArea(new QWidget(this))
+{
+    setLineWrapMode(QPlainTextEdit::NoWrap);
+    foldArea->setObjectName(QStringLiteral("decompilerFoldArea"));
+    foldArea->setAccessibleName(tr("Code folding"));
+    foldArea->setToolTip(tr("Click an arrow to collapse or expand a { ... } block"));
+    foldArea->setMouseTracking(true);
+    foldArea->installEventFilter(this);
+    connect(this, &QPlainTextEdit::updateRequest, this, [this](const QRect &rect, int dy) {
+        if (foldArea->height() != viewport()->height()) {
+            updateFoldAreaGeometry();
+        }
+        if (dy) {
+            foldArea->scroll(0, dy);
+        } else {
+            foldArea->update(0, rect.y(), foldArea->width(), rect.height());
+        }
+    });
+    connect(this, &QPlainTextEdit::cursorPositionChanged, this, &DecompilerTextEdit::revealCursor);
+    updateFoldAreaGeometry();
+}
+
+void DecompilerTextEdit::setDecompiledCode(
+    const QString &text, const QString &source, bool preserveFolds)
+{
+    QScopedValueRollback<bool> guard(updatingCode, true);
+    QString normalizedSource = source;
+    normalizedSource.replace(QStringLiteral("\r\n"), QStringLiteral("\n"));
+    normalizedSource.replace(QLatin1Char('\r'), QLatin1Char('\n'));
+    preserveFolds = preserveFolds && normalizedSource == foldingSource;
+    const QTextCursor previous = textCursor();
+    const int previousLine = previous.blockNumber();
+    const QString sourceLine = foldingSource.section(QLatin1Char('\n'), previousLine, previousLine);
+    const int sourceColumn
+        = qMax(0, previous.positionInBlock() - (previous.block().text().size() - sourceLine.size()));
+    QSet<QPair<int, int>> collapsed;
+    if (preserveFolds) {
+        for (const FoldRegion &region : regions) {
+            if (region.collapsed) {
+                collapsed.insert({region.first, region.last});
+            }
+        }
+    }
+    regions.clear();
+    setPlainText(text);
+    foldingSource = normalizedSource;
+    findFoldRegions(normalizedSource);
+    for (FoldRegion &region : regions) {
+        region.collapsed = collapsed.contains({region.first, region.last});
+    }
+    if (preserveFolds) {
+        const QTextBlock block = document()->findBlockByNumber(previousLine);
+        if (block.isValid()) {
+            const int prefix = block.text().size() - sourceLine.size();
+            QTextCursor cursor(block);
+            cursor.setPosition(
+                block.position() + qBound(0, prefix + sourceColumn, block.length() - 1));
+            setTextCursor(cursor);
+        }
+    }
+    applyFolding();
+}
+
+void DecompilerTextEdit::findFoldRegions(const QString &source)
+{
+    enum State { Code, LineComment, BlockComment, Quoted, RawString } state = Code;
+    QVector<QPair<int, int>> openings;
+    matchingBraces.clear();
+    // Translate source positions past optional address and disassembly columns.
+    QVector<int> lineOffsets;
+    QTextBlock block = document()->begin();
+    int sourcePosition = 0;
+    for (const QString &text : source.split(QLatin1Char('\n'))) {
+        lineOffsets.append(block.position() + block.text().size() - text.size() - sourcePosition);
+        sourcePosition += text.size() + 1;
+        block = block.next();
+    }
+    QChar quote;
+    QString rawEnd;
+    int line = 0;
+    for (int i = 0; i < source.size(); ++i) {
+        const QChar c = source.at(i);
+        const QChar next = i + 1 < source.size() ? source.at(i + 1) : QChar();
+        if (c == QLatin1Char('\n')) {
+            ++line;
+        }
+        if (state == LineComment) {
+            if (c == QLatin1Char('\n') && (i == 0 || source.at(i - 1) != QLatin1Char('\\'))) {
+                state = Code;
+            }
+        } else if (state == BlockComment) {
+            if (c == QLatin1Char('*') && next == QLatin1Char('/')) {
+                state = Code;
+                ++i;
+            }
+        } else if (state == Quoted) {
+            if (c == QLatin1Char('\\') && !next.isNull()) {
+                if (next == QLatin1Char('\n')) {
+                    ++line;
+                }
+                ++i;
+            } else if (c == quote) {
+                state = Code;
+            }
+        } else if (state == RawString) {
+            if (source.mid(i, rawEnd.size()) == rawEnd) {
+                i += rawEnd.size() - 1;
+                state = Code;
+            }
+        } else if (c == QLatin1Char('/') && next == QLatin1Char('/')) {
+            state = LineComment;
+            ++i;
+        } else if (c == QLatin1Char('/') && next == QLatin1Char('*')) {
+            state = BlockComment;
+            ++i;
+        } else if (c == QLatin1Char('R') && next == QLatin1Char('"')) {
+            const int length = source.mid(i + 2, 17).indexOf(QLatin1Char('('));
+            const QString delimiter = source.mid(i + 2, qMax(0, length));
+            if (length >= 0 && std::none_of(delimiter.cbegin(), delimiter.cend(), [](QChar c) {
+                    return c.isSpace() || c == QLatin1Char('\\') || c == QLatin1Char(')');
+                })) {
+                rawEnd = QLatin1Char(')') + delimiter + QLatin1Char('"');
+                i += length + 2;
+                state = RawString;
+            }
+        } else if (c == QLatin1Char('"') || c == QLatin1Char('\'')) {
+            quote = c;
+            state = Quoted;
+        } else if (c == QLatin1Char('{')) {
+            openings.append({line, i + lineOffsets.at(line)});
+        } else if (c == QLatin1Char('}') && !openings.isEmpty()) {
+            const auto opening = openings.takeLast();
+            const int closing = i + lineOffsets.at(line);
+            matchingBraces.insert(opening.second, closing);
+            matchingBraces.insert(closing, opening.second);
+            if (line > opening.first + 1) {
+                regions.append({opening.first, line});
+            }
+        }
+    }
+    std::sort(regions.begin(), regions.end(), [](const FoldRegion &a, const FoldRegion &b) {
+        return a.first != b.first ? a.first < b.first : a.last > b.last;
+    });
+}
+
+int DecompilerTextEdit::foldForLine(int line) const
+{
+    auto it = std::lower_bound(
+        regions.cbegin(), regions.cend(), line, [](const FoldRegion &region, int line) {
+            return region.first < line;
+        });
+    return it != regions.cend() && it->first == line ? int(it - regions.cbegin()) : -1;
+}
+
+bool DecompilerTextEdit::isFolded(int line) const
+{
+    const int index = foldForLine(line);
+    return index >= 0 && regions.at(index).collapsed;
+}
+
+bool DecompilerTextEdit::isFoldable(int line) const
+{
+    return foldForLine(line) >= 0;
+}
+
+void DecompilerTextEdit::toggleFold(int line)
+{
+    const int index = foldForLine(line);
+    if (index >= 0) {
+        const bool collapsed = !regions.at(index).collapsed;
+        // One gutter arrow controls all braces opened on the same line.
+        for (int i = index; i < regions.size() && regions.at(i).first == line; ++i) {
+            regions[i].collapsed = collapsed;
+        }
+        applyFolding();
+    }
+}
+
+void DecompilerTextEdit::toggleFoldAtCursor()
+{
+    const int line = textCursor().blockNumber();
+    int index = foldForLine(line);
+    if (index < 0) {
+        for (int i = 0; i < regions.size(); ++i) {
+            if (regions.at(i).first < line && regions.at(i).last >= line) {
+                index = i;
+            }
+        }
+    }
+    if (index >= 0) {
+        toggleFold(regions.at(index).first);
+    }
+}
+
+void DecompilerTextEdit::jumpToMatchingBrace()
+{
+    const QTextCursor cursor = textCursor();
+    const auto match = matchingBraces.lowerBound(cursor.position());
+    if (match == matchingBraces.cend()
+        || match.key() >= cursor.block().position() + cursor.block().length() - 1) {
+        return;
+    }
+    QTextCursor target(document());
+    target.setPosition(match.value());
+    setTextCursor(target);
+    ensureCursorVisible();
+}
+
+void DecompilerTextEdit::collapseAll()
+{
+    for (FoldRegion &region : regions) {
+        region.collapsed = true;
+    }
+    applyFolding();
+}
+
+void DecompilerTextEdit::expandAll()
+{
+    for (FoldRegion &region : regions) {
+        region.collapsed = false;
+    }
+    applyFolding();
+}
+
+void DecompilerTextEdit::applyFolding()
+{
+    QVector<int> depth(blockCount() + 1, 0);
+    for (const FoldRegion &region : regions) {
+        if (region.collapsed && region.last < blockCount()) {
+            ++depth[region.first + 1];
+            --depth[region.last];
+        }
+    }
+    int hidden = 0;
+    for (QTextBlock block = document()->begin(); block.isValid(); block = block.next()) {
+        hidden += depth.at(block.blockNumber());
+        block.setVisible(hidden == 0);
+        block.setLineCount(hidden ? 0 : 1);
+    }
+    QTextBlock cursorBlock = textCursor().block();
+    if (!cursorBlock.isVisible()) {
+        while (cursorBlock.isValid() && !cursorBlock.isVisible()) {
+            cursorBlock = cursorBlock.previous();
+        }
+        QSignalBlocker blocker(this);
+        setTextCursor(QTextCursor(cursorBlock));
+    }
+    document()->markContentsDirty(0, document()->characterCount());
+    auto *layout = document()->documentLayout();
+    emit layout->documentSizeChanged(layout->documentSize());
+    viewport()->update();
+    foldArea->update();
+    emit foldingChanged();
+}
+
+void DecompilerTextEdit::revealCursor()
+{
+    if (updatingCode) {
+        return;
+    }
+    const int line = textCursor().blockNumber();
+    QSet<int> openings;
+    for (const FoldRegion &region : regions) {
+        if (region.collapsed && region.first < line && region.last > line) {
+            openings.insert(region.first);
+        }
+    }
+    if (!openings.isEmpty()) {
+        for (FoldRegion &region : regions) {
+            if (openings.contains(region.first)) {
+                region.collapsed = false;
+            }
+        }
+        applyFolding();
+    }
+}
+
+void DecompilerTextEdit::updateFoldAreaGeometry()
+{
+    const int width = qMax(16, fontMetrics().height());
+    if (viewportMargins().left() != width) {
+        setViewportMargins(width, 0, 0, 0);
+    }
+    const QRect rect = viewport()->geometry();
+    foldArea->setGeometry(contentsRect().left(), rect.top(), width, rect.height());
+}
+
+void DecompilerTextEdit::resizeEvent(QResizeEvent *event)
+{
+    QPlainTextEdit::resizeEvent(event);
+    updateFoldAreaGeometry();
+}
+
+void DecompilerTextEdit::changeEvent(QEvent *event)
+{
+    QPlainTextEdit::changeEvent(event);
+    if (event->type() == QEvent::FontChange) {
+        updateFoldAreaGeometry();
+    }
+    foldArea->update();
+}
+
+int DecompilerTextEdit::foldAt(const QPoint &point) const
+{
+    const QPoint viewportPoint = foldArea->mapTo(this, point) - viewport()->pos();
+    const QTextCursor cursor = cursorForPosition(QPoint(0, viewportPoint.y()));
+    const QRect rect = cursorRect(cursor);
+    if (!cursor.block().isVisible() || viewportPoint.y() < rect.top()
+        || viewportPoint.y() > rect.bottom()) {
+        return -1;
+    }
+    return foldForLine(cursor.blockNumber());
+}
+
+bool DecompilerTextEdit::eventFilter(QObject *object, QEvent *event)
+{
+    if (object == foldArea) {
+        if (event->type() == QEvent::Paint) {
+            paintFoldArea();
+            return true;
+        }
+        if (event->type() == QEvent::MouseMove) {
+            auto *mouse = static_cast<QMouseEvent *>(event);
+            foldArea->setCursor(
+                foldAt(mouse->pos()) >= 0 ? Qt::PointingHandCursor : Qt::ArrowCursor);
+            return true;
+        }
+        if (event->type() == QEvent::MouseButtonPress) {
+            auto *mouse = static_cast<QMouseEvent *>(event);
+            const int index = foldAt(mouse->pos());
+            if (mouse->button() == Qt::LeftButton && index >= 0) {
+                toggleFold(regions.at(index).first);
+            }
+            return true;
+        }
+        if (event->type() == QEvent::MouseButtonRelease
+            || event->type() == QEvent::MouseButtonDblClick) {
+            return true;
+        }
+    }
+    return QPlainTextEdit::eventFilter(object, event);
+}
+
+void DecompilerTextEdit::paintFoldArea()
+{
+    QPainter painter(foldArea);
+    painter.fillRect(foldArea->rect(), palette().alternateBase());
+    for (QTextBlock block = firstVisibleBlock(); block.isValid(); block = block.next()) {
+        if (!block.isVisible()) {
+            continue;
+        }
+        const QRectF rect = blockBoundingGeometry(block).translated(contentOffset());
+        if (rect.top() >= viewport()->height()) {
+            break;
+        }
+        const int index = foldForLine(block.blockNumber());
+        if (index < 0) {
+            continue;
+        }
+        QStyleOption option;
+        option.initFrom(foldArea);
+        option.rect = QRect(
+            0, qRound(rect.top()), foldArea->width(), qRound(blockBoundingRect(block).height()));
+        option.state |= QStyle::State_Children;
+        if (!regions.at(index).collapsed) {
+            option.state |= QStyle::State_Open;
+        }
+        style()->drawPrimitive(QStyle::PE_IndicatorBranch, &option, &painter, foldArea);
+    }
+}
+
+void DecompilerTextEdit::paintEvent(QPaintEvent *event)
+{
+    QPlainTextEdit::paintEvent(event);
+    QPainter painter(viewport());
+    painter.setPen(palette().color(QPalette::Mid));
+    for (const FoldRegion &region : regions) {
+        if (!region.collapsed) {
+            continue;
+        }
+        const QTextBlock block = document()->findBlockByNumber(region.first);
+        if (!block.isVisible()) {
+            continue;
+        }
+        QTextCursor cursor(block);
+        cursor.movePosition(QTextCursor::EndOfBlock);
+        const QRect rect = cursorRect(cursor);
+        if (rect.intersects(viewport()->rect())) {
+            painter
+                .drawText(rect.topLeft() + QPoint(3, fontMetrics().ascent()), QStringLiteral(" ..."));
+        }
+    }
+}

src/widgets/DecompilerTextEdit.h

@@ -0,0 +1,58 @@
+#ifndef DECOMPILERTEXTEDIT_H
+#define DECOMPILERTEXTEDIT_H
+
+#include <QMap>
+#include <QPlainTextEdit>
+#include <QVector>
+
+class DecompilerTextEdit : public QPlainTextEdit
+{
+    Q_OBJECT
+
+public:
+    explicit DecompilerTextEdit(QWidget *parent = nullptr);
+
+    void setDecompiledCode(const QString &text, const QString &source, bool preserveFolds);
+    bool isFolded(int line) const;
+    bool isFoldable(int line) const;
+
+public slots:
+    void toggleFold(int line);
+    void toggleFoldAtCursor();
+    void jumpToMatchingBrace();
+    void collapseAll();
+    void expandAll();
+
+signals:
+    void foldingChanged();
+
+protected:
+    bool eventFilter(QObject *object, QEvent *event) override;
+    void resizeEvent(QResizeEvent *event) override;
+    void changeEvent(QEvent *event) override;
+    void paintEvent(QPaintEvent *event) override;
+
+private:
+    struct FoldRegion
+    {
+        int first;
+        int last;
+        bool collapsed = false;
+    };
+
+    QWidget *foldArea;
+    QVector<FoldRegion> regions;
+    QMap<int, int> matchingBraces;
+    QString foldingSource;
+    bool updatingCode = false;
+
+    int foldForLine(int line) const;
+    int foldAt(const QPoint &point) const;
+    void findFoldRegions(const QString &source);
+    void applyFolding();
+    void revealCursor();
+    void updateFoldAreaGeometry();
+    void paintFoldArea();
+};
+
+#endif // DECOMPILERTEXTEDIT_H

src/widgets/DecompilerWidget.cpp

@@ -1,5 +1,7 @@
 #include "DecompilerWidget.h"
+#include "DecompilerTextEdit.h"
 #include "common/ShortcutManager.h"
+#include "menus/ContextMenuIcons.h"
 #include "menus/DecompilerContextMenu.h"
 #include "ui_DecompilerWidget.h"
 
@@ -18,7 +20,9 @@
 #include <QPushButton>
 
 #include "dialogs/ShortcutKeysDialog.h"
+#include <algorithm>
 #include <QAbstractSlider>
+#include <QApplication>
 #include <QClipboard>
 #include <QDesktopServices>
 #include <QDir>
@@ -31,11 +35,13 @@
 #include <QLineEdit>
 #include <QObject>
 #include <QPlainTextEdit>
+#include <QRegularExpression>
 #include <QScrollBar>
 #include <QSet>
 #include <QTextBlock>
 #include <QTextBlockUserData>
 #include <QTextEdit>
+#include <QTextLayout>
 #include <QUrl>
 #include <QWheelEvent>
 
@@ -55,7 +61,12 @@ DecompilerWidget::DecompilerWidget(MainWindow *main)
     , code(r_codemeta_new(""), &r_codemeta_free)
 {
     ui->setupUi(this);
+    // Keep a keyboard cursor in the read-only decompilation listing.
+    ui->textEdit->setTextInteractionFlags(Qt::TextSelectableByMouse | Qt::TextSelectableByKeyboard);
+    setFocusProxy(ui->textEdit);
+    setupSeekHistoryBar(true);
     showAddressColumn = Config()->getDecompilerShowAddresses();
+    showDisassemblyColumn = Config()->getDecompilerShowDisassembly();
     setObjectName(main ? main->getUniqueObjectName(getWidgetType()) : getWidgetType());
     updateWindowTitle();
 
@@ -63,8 +74,19 @@ DecompilerWidget::DecompilerWidget(MainWindow *main)
     // Event filter to intercept key, mouse double click, and right click in the textbox
     ui->textEdit->viewport()->installEventFilter(this);
     ui->textEdit->installEventFilter(this);
-    // Needed so hovering a deep link shows a pointing-hand cursor without a press
+    ui->textEdit->setCursor(Qt::ArrowCursor);
+    ui->textEdit->viewport()->setCursor(Qt::ArrowCursor);
+    ui->textEdit->setMouseTracking(true);
     ui->textEdit->viewport()->setMouseTracking(true);
+    for (QScrollBar *scrollBar :
+         {ui->textEdit->horizontalScrollBar(), ui->textEdit->verticalScrollBar()}) {
+        connect(
+            scrollBar,
+            &QScrollBar::valueChanged,
+            this,
+            &DecompilerWidget::refreshDecompilerHover,
+            Qt::QueuedConnection);
+    }
 
     setupFonts();
     colorsUpdatedSlot();
@@ -117,8 +139,55 @@ DecompilerWidget::DecompilerWidget(MainWindow *main)
 
     connect(Core(), &IaitoCore::breakpointsChanged, this, &DecompilerWidget::updateBreakpoints);
     mCtxMenu->addSeparator();
+    using ContextMenuIcons::Icon;
+    using ContextMenuIcons::setIcon;
+    auto bindEditorAction = [this](const char *id, QAction *action) {
+        ShortcutMgr()->bindAction(id, action);
+        action->setShortcutContext(Qt::WidgetWithChildrenShortcut);
+        action->setAutoRepeat(false);
+#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
+        action->setShortcutVisibleInContextMenu(true);
+#endif
+        ui->textEdit->addAction(action);
+    };
+    auto *followAction = new QAction(tr("Follow reference"), this);
+    bindEditorAction("decompiler.followReference", followAction);
+    setIcon(this, followAction, Icon::Navigation, QColor(103, 80, 164));
+    connect(followAction, &QAction::triggered, this, &DecompilerWidget::seekToReference);
+    mCtxMenu->insertAction(mCtxMenu->actions().first(), followAction);
+
+    const QColor foldingColor(191, 128, 32);
+    QMenu *foldingMenu = mCtxMenu->addMenu(tr("Code folding"));
+    setIcon(this, foldingMenu->menuAction(), Icon::Fold, foldingColor);
+    QAction *toggleFoldAction = foldingMenu->addAction(
+        tr("Collapse/expand block"), ui->textEdit, &DecompilerTextEdit::toggleFoldAtCursor);
+    setIcon(this, toggleFoldAction, Icon::Fold, foldingColor);
+    bindEditorAction("decompiler.toggleFold", toggleFoldAction);
+    auto *matchBraceAction = foldingMenu->addAction(
+        tr("Jump to matching brace"), ui->textEdit, &DecompilerTextEdit::jumpToMatchingBrace);
+    bindEditorAction("decompiler.matchBrace", matchBraceAction);
+    setIcon(this, matchBraceAction, Icon::Navigation, QColor(103, 80, 164));
+    setIcon(
+        this,
+        foldingMenu
+            ->addAction(tr("Collapse all blocks"), ui->textEdit, &DecompilerTextEdit::collapseAll),
+        Icon::Collapse,
+        foldingColor);
+    setIcon(
+        this,
+        foldingMenu->addAction(tr("Expand all blocks"), ui->textEdit, &DecompilerTextEdit::expandAll),
+        Icon::Expand,
+        foldingColor);
+    connect(ui->textEdit, &DecompilerTextEdit::foldingChanged, this, [this]() {
+        updateCursorContext();
+        updateSelection();
+        refreshDecompilerHover();
+    });
     mCtxMenu->addAction(&syncAction);
-    addActions(mCtxMenu->actions());
+    setIcon(this, &syncAction, Icon::Sync, QColor(103, 80, 164));
+    auto menuActions = mCtxMenu->actions();
+    menuActions.removeOne(followAction);
+    addActions(menuActions);
 
     ui->progressLabel->setVisible(false);
     ui->decompileButton->setVisible(false);
@@ -160,6 +229,10 @@ DecompilerWidget::DecompilerWidget(MainWindow *main)
     connect(Core(), &IaitoCore::commentsChanged, this, &DecompilerWidget::refreshIfChanged);
     connect(Core(), &IaitoCore::instructionChanged, this, &DecompilerWidget::refreshIfChanged);
     connect(Core(), &IaitoCore::refreshCodeViews, this, &DecompilerWidget::doRefresh);
+    connect(Core(), &IaitoCore::refreshAll, this, &DecompilerWidget::invalidateTokenTargets);
+    connect(Core(), &IaitoCore::flagsChanged, this, &DecompilerWidget::invalidateTokenTargets);
+    connect(Core(), &IaitoCore::functionsChanged, this, &DecompilerWidget::invalidateTokenTargets);
+    connect(Core(), &IaitoCore::functionRenamed, this, &DecompilerWidget::invalidateTokenTargets);
 
     // Esc to seek backward
     QAction *seekPrevAction = new QAction(this);
@@ -167,10 +240,23 @@ DecompilerWidget::DecompilerWidget(MainWindow *main)
     seekPrevAction->setShortcutContext(Qt::WidgetWithChildrenShortcut);
     addAction(seekPrevAction);
     connect(seekPrevAction, &QAction::triggered, seekable, &IaitoSeekable::seekPrev);
+
+    QAction *switchAction = new QAction(this);
+    ShortcutMgr()->bindAction("decompiler.switchToDisassembly", switchAction);
+    switchAction->setShortcutContext(Qt::WidgetWithChildrenShortcut);
+    addAction(switchAction);
+    connect(switchAction, &QAction::triggered, this, [this] {
+        mainWindow->showMemoryWidget(MemoryWidgetType::Disassembly);
+    });
 }
 
 DecompilerWidget::~DecompilerWidget() = default;
 
+QWidget *DecompilerWidget::widgetToFocusOnRaise()
+{
+    return ui->textEdit;
+}
+
 QString DecompilerWidget::getWidgetType()
 {
     return "DecompilerWidget";
@@ -183,10 +269,186 @@ Decompiler *DecompilerWidget::getCurrentDecompiler()
 
 QString DecompilerWidget::deepLinkAt(const QPoint &pos)
 {
-    const QTextCursor cursor = ui->textEdit->cursorForPosition(pos);
+    const QTextCursor cursor = cursorOnCharacter(pos);
     return DeepLink::linkAt(cursor.block().text(), cursor.positionInBlock());
 }
 
+QTextCursor DecompilerWidget::cursorOnCharacter(const QPoint &pos) const
+{
+    if (!ui->textEdit->viewport()->rect().contains(pos)) {
+        return {};
+    }
+    QTextCursor cursor = ui->textEdit->cursorForPosition(pos);
+    const QTextBlock block = cursor.block();
+    const QTextLine line = block.layout()->lineForTextPosition(cursor.positionInBlock());
+    if (!line.isValid()) {
+        return {};
+    }
+    const QRect caret = ui->textEdit->cursorRect(cursor);
+    const qreal x = pos.x() - caret.left() + line.cursorToX(cursor.positionInBlock());
+    const QRectF bounds = line.naturalTextRect();
+    if (x < bounds.left() || x >= bounds.right() || pos.y() < caret.top()
+        || pos.y() >= caret.top() + caret.height()) {
+        return {};
+    }
+    const int column = line.xToCursor(x, QTextLine::CursorOnCharacter);
+    const QString text = block.text();
+    if (column >= text.size() || text.at(column).isSpace()) {
+        return {};
+    }
+    cursor.setPosition(block.position() + column);
+    return cursor;
+}
+
+static QString decompilerSymbolName(QString name)
+{
+    // Plain-text decompilers strip r2 prefixes and turn punctuation into underscores.
+    static const QRegularExpression prefix(R"(^(?:(?:sym|imp|reloc)[._])+)");
+    static const QRegularExpression punctuation(R"([^\p{L}\p{N}_])");
+    name = name.section(QLatin1Char('('), 0, 0).trimmed();
+    name.remove(prefix);
+    name.replace(punctuation, QStringLiteral("_"));
+    while (name.startsWith(QLatin1Char('_'))) {
+        name.remove(0, 1);
+    }
+    return name;
+}
+
+void DecompilerWidget::invalidateTokenTargets()
+{
+    symbolTargets.clear();
+    outgoingXRefsCache.clear();
+    symbolTargetsReady = false;
+    refreshDecompilerHover();
+}
+
+void DecompilerWidget::cacheSymbolTarget(const QString &name, RVA address)
+{
+    const QString key = decompilerSymbolName(name);
+    if (key.isEmpty()) {
+        return;
+    }
+    auto it = symbolTargets.find(key);
+    if (it == symbolTargets.end()) {
+        symbolTargets.insert(key, address);
+    } else if (it.value() != address) {
+        // A shortened name must not silently navigate to the wrong overload/import.
+        it.value() = RVA_INVALID;
+    }
+}
+
+RVA DecompilerWidget::symbolTarget(const QString &name, RVA offset)
+{
+    if (!symbolTargetsReady) {
+        auto core = Core()->core();
+        r_flag_foreach(
+            core->flags,
+            [](RFlagItem *flag, void *user) {
+                auto *widget = static_cast<DecompilerWidget *>(user);
+                widget->cacheSymbolTarget(QString::fromUtf8(flag->name), flag->addr);
+                widget->cacheSymbolTarget(QString::fromUtf8(flag->realname), flag->addr);
+                return true;
+            },
+            this);
+        RListIter *iter;
+        RAnalFunction *function;
+        IaitoRListForeach(core->anal->fcns, iter, RAnalFunction, function)
+        {
+            cacheSymbolTarget(QString::fromUtf8(function->name), function->addr);
+        }
+        symbolTargetsReady = true;
+    }
+    const QString key = decompilerSymbolName(name);
+    const RVA target = symbolTargets.value(key, RVA_INVALID);
+    if (target != RVA_INVALID || offset == RVA_INVALID) {
+        return target;
+    }
+    auto refs = outgoingXRefsCache.constFind(offset);
+    if (refs == outgoingXRefsCache.cend()) {
+        refs = outgoingXRefsCache.insert(offset, Core()->getXRefs(offset, false, false));
+    }
+    RVA referenceTarget = RVA_INVALID;
+    for (const XrefDescription &ref : refs.value()) {
+        if (decompilerSymbolName(ref.to_str) == key) {
+            if (referenceTarget != RVA_INVALID && referenceTarget != ref.to) {
+                return RVA_INVALID;
+            }
+            referenceTarget = ref.to;
+        }
+    }
+    return referenceTarget;
+}
+
+RVA DecompilerWidget::tokenTarget(QTextCursor &cursor)
+{
+    if (cursor.isNull()) {
+        return RVA_INVALID;
+    }
+    const size_t pos = static_cast<size_t>(cursor.position());
+    RVA offset = RVA_INVALID;
+    size_t offsetStart = 0;
+#if R2_ABIVERSION >= 40
+    RCodeMetaItem *annotation;
+    R_VEC_FOREACH(&code->annotations, annotation)
+    {
+#else
+    void *iter;
+    r_vector_foreach(&code->annotations, iter)
+    {
+        RCodeMetaItem *annotation = reinterpret_cast<RCodeMetaItem *>(iter);
+#endif
+        if (annotation->start > pos || annotation->end <= pos) {
+            continue;
+        }
+        if (annotation->type == R_CODEMETA_TYPE_OFFSET && annotation->start >= offsetStart) {
+            offsetStart = annotation->start;
+            offset = annotation->offset.offset;
+        }
+        if (r_codemeta_item_is_reference(annotation)) {
+            cursor.setPosition(static_cast<int>(annotation->start));
+            cursor.setPosition(static_cast<int>(annotation->end), QTextCursor::KeepAnchor);
+            return annotation->reference.offset;
+        }
+        if (r_codemeta_item_is_variable(annotation)) {
+            return RVA_INVALID;
+        }
+    }
+
+    // Decompilers without reference annotations still expose addresses and symbols.
+    static const QRegularExpression tokens(
+        R"(\b(?:0[xX][0-9a-fA-F]+|[\p{L}_$][\p{L}\p{N}_.$]*(?:::[\p{L}_$~][\p{L}\p{N}_.$]*)*)\b)",
+        QRegularExpression::UseUnicodePropertiesOption);
+    auto matches = tokens.globalMatch(cursor.block().text());
+    while (matches.hasNext()) {
+        const QRegularExpressionMatch match = matches.next();
+        if (cursor.positionInBlock() < match.capturedStart()
+            || cursor.positionInBlock() >= match.capturedEnd()) {
+            continue;
+        }
+        const QString token = match.captured();
+        const int start = cursor.block().position() + match.capturedStart();
+        cursor.setPosition(start);
+        cursor.setPosition(start + match.capturedLength(), QTextCursor::KeepAnchor);
+        if (token.startsWith(QLatin1String("0x"), Qt::CaseInsensitive)) {
+            bool ok = false;
+            const RVA address = token.toULongLong(&ok, 16);
+            return ok ? address : RVA_INVALID;
+        }
+        {
+            RCoreLocked core = Core()->core();
+            const QByteArray name = token.toUtf8();
+            if (RFlagItem *flag = r_flag_get(core->flags, name.constData())) {
+                return flag->addr;
+            }
+            if (RAnalFunction *function = r_anal_get_function_byname(core->anal, name.constData())) {
+                return function->addr;
+            }
+        }
+        return symbolTarget(token, offset);
+    }
+    return RVA_INVALID;
+}
+
 ut64 DecompilerWidget::offsetForPosition(size_t pos)
 {
     ut64 closestPos = UT64_MAX;
@@ -241,6 +503,14 @@ size_t DecompilerWidget::positionForOffset(ut64 offset)
         closestPos = annotation->start;
         closestOffset = annotation->offset.offset;
     }
+    if (closestPos != UT64_MAX) {
+        // Some decompilers start offset annotations on the preceding newline.
+        QTextCursor cursor(ui->textEdit->document());
+        cursor.setPosition(static_cast<int>(closestPos));
+        if (cursor.atBlockEnd() && cursor.block().next().isValid()) {
+            closestPos++;
+        }
+    }
     return closestPos;
 }
 
@@ -290,8 +560,8 @@ void DecompilerWidget::gatherBreakpointInfo(RCodeMeta &codeDecompiled, size_t st
         if (annotation->type != R_CODEMETA_TYPE_OFFSET) {
             continue;
         }
-        if ((startPos <= annotation->start && annotation->start < endPos)
-            || (startPos < annotation->end && annotation->end < endPos)) {
+        if (annotation->start < endPos && annotation->end > startPos
+            && annotation->offset.offset != RVA_INVALID) {
             firstOffset = (annotation->offset.offset < firstOffset) ? annotation->offset.offset
                                                                     : firstOffset;
         }
@@ -311,7 +581,9 @@ void DecompilerWidget::gatherBreakpointInfo(RCodeMeta &codeDecompiled, size_t st
 
 void DecompilerWidget::refreshIfChanged(RVA addr)
 {
-    if (addressInRange(addr)) {
+    if (addressInRange(addr)
+        || (decompiledFunctionAddr != RVA_INVALID
+            && Core()->getFunctionStart(addr) == decompiledFunctionAddr)) {
         doRefresh();
     }
 }
@@ -430,7 +702,7 @@ void DecompilerWidget::refreshDecompiler()
 QTextCursor DecompilerWidget::getCursorForAddress(RVA addr)
 {
     size_t pos = positionForOffset(addr);
-    if (pos == UT64_MAX || pos == 0) {
+    if (pos == UT64_MAX) {
         return QTextCursor();
     }
     QTextCursor cursor = ui->textEdit->textCursor();
@@ -441,10 +713,20 @@ QTextCursor DecompilerWidget::getCursorForAddress(RVA addr)
 void DecompilerWidget::decompilationFinished(RCodeMeta *codeDecompiled)
 {
     bool isDisplayReset = false;
+    int cursorLineOffset = 0;
+    int cursorColumn = 0;
+    bool restoreCursor = false;
     if (previousFunctionAddr == decompiledFunctionAddr) {
         scrollerHorizontal = ui->textEdit->horizontalScrollBar()->sliderPosition();
         scrollerVertical = ui->textEdit->verticalScrollBar()->sliderPosition();
         isDisplayReset = true;
+        const QTextCursor cursor = ui->textEdit->textCursor();
+        const QTextCursor addressCursor = getCursorForAddress(seekable->getOffset());
+        if (!addressCursor.isNull()) {
+            cursorLineOffset = cursor.blockNumber() - addressCursor.blockNumber();
+            cursorColumn = cursor.positionInBlock();
+            restoreCursor = true;
+        }
     }
 
     ui->progressLabel->setVisible(false);
@@ -465,7 +747,24 @@ void DecompilerWidget::decompilationFinished(RCodeMeta *codeDecompiled)
         highestOffsetInCode = 0;
         return;
     }
-    updateCursorPosition();
+    if (restoreCursor) {
+        const QTextCursor addressCursor = getCursorForAddress(seekable->getOffset());
+        const QTextBlock block = ui->textEdit->document()->findBlockByNumber(
+            addressCursor.blockNumber() + cursorLineOffset);
+        if (!addressCursor.isNull() && block.isValid()) {
+            connectCursorPositionChanged(false);
+            QTextCursor cursor(block);
+            cursor.setPosition(block.position() + qMin(cursorColumn, block.length() - 1));
+            ui->textEdit->setTextCursor(cursor);
+            updateCursorContext();
+            updateSelection();
+            connectCursorPositionChanged(true);
+        } else {
+            updateCursorPosition();
+        }
+    } else {
+        updateCursorPosition();
+    }
     highlightPC();
     highlightBreakpoints();
     lowestOffsetInCode = RVA_MAX;
@@ -913,26 +1212,31 @@ void DecompilerWidget::connectCursorPositionChanged(bool connectPositionChange)
 
 void DecompilerWidget::cursorPositionChanged()
 {
+    const RVA offset = updateCursorContext();
     // Do not perform seeks along with the cursor while selecting multiple lines
     if (!ui->textEdit->textCursor().selectedText().isEmpty()) {
         return;
     }
 
-    size_t pos = ui->textEdit->textCursor().position();
-    setAnnotationsAtCursor(pos);
-    setInfoForBreakpoints();
-
-    RVA offset = offsetForPosition(pos);
     if (offset != RVA_INVALID && offset != seekable->getOffset()) {
         seekFromCursor = true;
         seekable->seek(offset);
-        mCtxMenu->setOffset(offset);
         seekFromCursor = false;
     }
     updateSourceControls();
     updateSelection();
 }
 
+RVA DecompilerWidget::updateCursorContext()
+{
+    const size_t pos = ui->textEdit->textCursor().position();
+    setAnnotationsAtCursor(pos);
+    setInfoForBreakpoints();
+    const RVA offset = offsetForPosition(pos);
+    mCtxMenu->setOffset(offset);
+    return offset;
+}
+
 void DecompilerWidget::seekChanged()
 {
     if (seekFromCursor) {
@@ -958,6 +1262,7 @@ void DecompilerWidget::updateCursorPosition()
     QTextCursor cursor = ui->textEdit->textCursor();
     cursor.setPosition(pos);
     ui->textEdit->setTextCursor(cursor);
+    updateCursorContext();
     updateSelection();
     connectCursorPositionChanged(true);
 }
@@ -985,7 +1290,7 @@ void DecompilerWidget::updateSelection()
     QString scrHighlight = Core()->getConfig("scr.highlight");
     extraSelections.append(createHighlightSelections(ui->textEdit, scrHighlight));
 
-    ui->textEdit->setExtraSelections(extraSelections);
+    setDecompilerSelections(extraSelections);
     // Highlight PC after updating the selected line
     highlightPC();
 }
@@ -998,6 +1303,7 @@ QString DecompilerWidget::getWindowTitle() const
 void DecompilerWidget::fontsUpdatedSlot()
 {
     setupFonts();
+    refreshDecompilerHover();
 }
 
 void DecompilerWidget::colorsUpdatedSlot()
@@ -1009,20 +1315,99 @@ void DecompilerWidget::colorsUpdatedSlot()
     if (syntaxHighlighter) {
         QMetaObject::invokeMethod(syntaxHighlighter, "rehighlight", Qt::QueuedConnection);
     }
+    setDecompilerSelections(ui->textEdit->extraSelections());
 }
 
 void DecompilerWidget::showDecompilerContextMenu(const QPoint &pt)
 {
-    mCtxMenu->exec(ui->textEdit->mapToGlobal(pt));
+    updateCursorContext();
+    mCtxMenu->exec(ui->textEdit->viewport()->mapToGlobal(pt));
 }
 
 void DecompilerWidget::seekToReference()
 {
+    QTextCursor cursor = ui->textEdit->textCursor();
+    const QString link = DeepLink::linkAt(cursor.block().text(), cursor.positionInBlock());
+    if (!link.isEmpty()) {
+        DeepLink::handle(mainWindow, link);
+        return;
+    }
+    const RVA target = tokenTarget(cursor);
+    if (target != RVA_INVALID) {
+        seekable->seek(target);
+        return;
+    }
     size_t pos = ui->textEdit->textCursor().position();
     RVA offset = offsetForPosition(pos);
     seekable->seekToReference(offset);
 }
 
+void DecompilerWidget::setDecompilerSelections(QList<QTextEdit::ExtraSelection> selections)
+{
+    constexpr int hoverProperty = QTextFormat::UserProperty;
+    selections.erase(
+        std::remove_if(
+            selections.begin(),
+            selections.end(),
+            [](const QTextEdit::ExtraSelection &s) { return s.format.boolProperty(hoverProperty); }),
+        selections.end());
+    if (hoveredToken.hasSelection()) {
+        QTextEdit::ExtraSelection hover;
+        hover.cursor = hoveredToken;
+        hover.format.setBackground(ConfigColor("wordHighlight"));
+        hover.format.setProperty(hoverProperty, true);
+        selections.append(hover);
+    }
+    ui->textEdit->setExtraSelections(selections);
+}
+
+void DecompilerWidget::setHoveredToken(const QTextCursor &cursor)
+{
+    if (hoveredToken == cursor) {
+        return;
+    }
+    hoveredToken = cursor;
+    setDecompilerSelections(ui->textEdit->extraSelections());
+}
+
+void DecompilerWidget::updateDecompilerHover(const QPoint &pos, Qt::MouseButtons buttons)
+{
+    QTextCursor hover;
+    Qt::CursorShape shape = Qt::ArrowCursor;
+    if (buttons & Qt::LeftButton) {
+        shape = Qt::IBeamCursor;
+    } else {
+        QTextCursor cursor = cursorOnCharacter(pos);
+        const QString text = cursor.block().text();
+        const QString link = DeepLink::linkAt(text, cursor.positionInBlock());
+        if (!link.isEmpty()) {
+            const int start = cursor.block().position()
+                              + text.lastIndexOf(link, cursor.positionInBlock());
+            cursor.setPosition(start);
+            cursor.setPosition(start + link.size(), QTextCursor::KeepAnchor);
+            hover = cursor;
+        } else if (tokenTarget(cursor) != RVA_INVALID) {
+            hover = cursor;
+        }
+        if (hover.hasSelection()) {
+            shape = Qt::PointingHandCursor;
+        }
+    }
+    ui->textEdit->viewport()->setCursor(shape);
+    setHoveredToken(hover);
+}
+
+void DecompilerWidget::refreshDecompilerHover()
+{
+    if (ui->textEdit->viewport()->underMouse()) {
+        updateDecompilerHover(
+            ui->textEdit->viewport()->mapFromGlobal(QCursor::pos()), QApplication::mouseButtons());
+    } else {
+        ui->textEdit->viewport()->setCursor(Qt::ArrowCursor);
+        setHoveredToken({});
+    }
+}
+
 bool DecompilerWidget::eventFilter(QObject *obj, QEvent *event)
 {
     if (event->type() == QEvent::Wheel && (obj == ui->textEdit || obj == ui->textEdit->viewport())) {
@@ -1042,6 +1427,23 @@ bool DecompilerWidget::eventFilter(QObject *obj, QEvent *event)
     if (event->type() == QEvent::KeyPress
         && (obj == ui->textEdit || obj == ui->textEdit->viewport())) {
         QKeyEvent *keyEvent = static_cast<QKeyEvent *>(event);
+        static const struct
+        {
+            const char *shortcut;
+            QTextCursor::MoveOperation movement;
+        } movements[] = {
+            {"decompiler.cursorLeft", QTextCursor::Left},
+            {"decompiler.cursorDown", QTextCursor::Down},
+            {"decompiler.cursorUp", QTextCursor::Up},
+            {"decompiler.cursorRight", QTextCursor::Right},
+        };
+        for (const auto &movement : movements) {
+            if (ShortcutMgr()->matches(movement.shortcut, keyEvent)) {
+                ui->textEdit->moveCursor(movement.movement);
+                keyEvent->accept();
+                return true;
+            }
+        }
         if (keyEvent->modifiers() == Qt::NoModifier && keyEvent->key() == Qt::Key_M) {
             // Prepare context and compute offset for current decompiler line
             size_t pos = ui->textEdit->textCursor().position();
@@ -1068,6 +1470,10 @@ bool DecompilerWidget::eventFilter(QObject *obj, QEvent *event)
     if (event->type() == QEvent::MouseButtonDblClick
         && (obj == ui->textEdit || obj == ui->textEdit->viewport())) {
         QMouseEvent *mouseEvent = static_cast<QMouseEvent *>(event);
+        pressedTokenTarget = RVA_INVALID;
+        if (mouseEvent->button() != Qt::LeftButton || followedTokenOnClick) {
+            return true;
+        }
         ui->textEdit->setTextCursor(ui->textEdit->cursorForPosition(mouseEvent->pos()));
         seekToReference();
         return true;
@@ -1075,29 +1481,57 @@ bool DecompilerWidget::eventFilter(QObject *obj, QEvent *event)
     if (event->type() == QEvent::MouseButtonPress
         && (obj == ui->textEdit || obj == ui->textEdit->viewport())) {
         QMouseEvent *mouseEvent = static_cast<QMouseEvent *>(event);
+        pressedTokenTarget = RVA_INVALID;
+        followedTokenOnClick = false;
+        if (mouseEvent->button() == Qt::LeftButton && mouseEvent->modifiers() == Qt::NoModifier) {
+            tokenPressPosition = mouseEvent->pos();
+            QTextCursor cursor = cursorOnCharacter(tokenPressPosition);
+            pressedTokenTarget = tokenTarget(cursor);
+        }
+        updateDecompilerHover(mouseEvent->pos(), mouseEvent->buttons());
         if (mouseEvent->button() == Qt::RightButton && !ui->textEdit->textCursor().hasSelection()) {
             ui->textEdit->setTextCursor(ui->textEdit->cursorForPosition(mouseEvent->pos()));
-            size_t pos = ui->textEdit->textCursor().position();
-            this->currentOffset = offsetForPosition(pos);
+            updateCursorContext();
             return true;
         }
     }
     if (event->type() == QEvent::MouseButtonRelease
         && (obj == ui->textEdit || obj == ui->textEdit->viewport())) {
         QMouseEvent *mouseEvent = static_cast<QMouseEvent *>(event);
+        const RVA target = pressedTokenTarget;
+        pressedTokenTarget = RVA_INVALID;
+        updateDecompilerHover(mouseEvent->pos(), mouseEvent->buttons());
         if (mouseEvent->button() == Qt::LeftButton && !ui->textEdit->textCursor().hasSelection()) {
             const QString link = deepLinkAt(mouseEvent->pos());
             if (!link.isEmpty()) {
                 DeepLink::handle(mainWindow, link);
                 return true;
             }
+            QTextCursor cursor = cursorOnCharacter(mouseEvent->pos());
+            if (target != RVA_INVALID
+                && (mouseEvent->pos() - tokenPressPosition).manhattanLength()
+                       < QApplication::startDragDistance()
+                && target == tokenTarget(cursor)) {
+                followedTokenOnClick = true;
+                seekable->seek(target);
+                refreshDecompilerHover();
+                return true;
+            }
         }
     }
     if (event->type() == QEvent::MouseMove
         && (obj == ui->textEdit || obj == ui->textEdit->viewport())) {
         QMouseEvent *mouseEvent = static_cast<QMouseEvent *>(event);
-        const bool overLink = !deepLinkAt(mouseEvent->pos()).isEmpty();
-        ui->textEdit->viewport()->setCursor(overLink ? Qt::PointingHandCursor : Qt::IBeamCursor);
+        if ((mouseEvent->buttons() & Qt::LeftButton)
+            && (mouseEvent->pos() - tokenPressPosition).manhattanLength()
+                   >= QApplication::startDragDistance()) {
+            pressedTokenTarget = RVA_INVALID;
+        }
+        updateDecompilerHover(mouseEvent->pos(), mouseEvent->buttons());
+    }
+    if (event->type() == QEvent::Leave && obj == ui->textEdit->viewport()) {
+        ui->textEdit->viewport()->setCursor(Qt::ArrowCursor);
+        setHoveredToken({});
     }
     return MemoryDockWidget::eventFilter(obj, event);
 }
@@ -1139,7 +1573,7 @@ bool DecompilerWidget::colorLine(QTextEdit::ExtraSelection extraSelection)
 {
     QList<QTextEdit::ExtraSelection> extraSelections = ui->textEdit->extraSelections();
     extraSelections.append(extraSelection);
-    ui->textEdit->setExtraSelections(extraSelections);
+    setDecompilerSelections(extraSelections);
     return true;
 }
 
@@ -1270,7 +1704,7 @@ static RCodeMeta *copyCodeMeta(RCodeMeta *source)
     return copy;
 }
 
-struct DecompilerAddressLine
+struct DecompilerColumnLine
 {
     size_t start = 0;
     size_t end = 0;
@@ -1279,11 +1713,12 @@ struct DecompilerAddressLine
     size_t shiftBefore = 0;
     size_t shiftInLine = 0;
     RVA address = RVA_INVALID;
+    QString disassembly = {};
 };
 
-static QVector<DecompilerAddressLine> collectAddressLines(const QString &text)
+static QVector<DecompilerColumnLine> collectAddressLines(const QString &text)
 {
-    QVector<DecompilerAddressLine> lines;
+    QVector<DecompilerColumnLine> lines;
     int start = 0;
     while (start < text.size()) {
         int newline = text.indexOf(QLatin1Char('\n'), start);
@@ -1296,7 +1731,7 @@ static QVector<DecompilerAddressLine> collectAddressLines(const QString &text)
     return lines;
 }
 
-static bool assignLineAddresses(QVector<DecompilerAddressLine> &lines, RCodeMeta *code)
+static bool assignLineAddresses(QVector<DecompilerColumnLine> &lines, RCodeMeta *code)
 {
     bool hasAddress = false;
 #if R2_ABIVERSION >= 40
@@ -1312,8 +1747,8 @@ static bool assignLineAddresses(QVector<DecompilerAddressLine> &lines, RCodeMeta
         if (annotation->type != R_CODEMETA_TYPE_OFFSET || annotation->offset.offset == RVA_INVALID) {
             continue;
         }
-        for (DecompilerAddressLine &line : lines) {
-            if (annotation->start >= line.nextStart || annotation->end <= line.start) {
+        for (DecompilerColumnLine &line : lines) {
+            if (annotation->start >= line.end || annotation->end <= line.start) {
                 continue;
             }
             if (annotation->start < line.offsetAnnotationStart) {
@@ -1321,15 +1756,14 @@ static bool assignLineAddresses(QVector<DecompilerAddressLine> &lines, RCodeMeta
                 line.offsetAnnotationStart = annotation->start;
                 hasAddress = true;
             }
-            break;
         }
     }
     return hasAddress;
 }
 
-static size_t shiftForStartPosition(const QVector<DecompilerAddressLine> &lines, size_t pos)
+static size_t shiftForStartPosition(const QVector<DecompilerColumnLine> &lines, size_t pos)
 {
-    for (const DecompilerAddressLine &line : lines) {
+    for (const DecompilerColumnLine &line : lines) {
         if (pos < line.nextStart) {
             return line.shiftInLine;
         }
@@ -1337,9 +1771,9 @@ static size_t shiftForStartPosition(const QVector<DecompilerAddressLine> &lines,
     return lines.isEmpty() ? 0 : lines.last().shiftInLine;
 }
 
-static size_t shiftForEndPosition(const QVector<DecompilerAddressLine> &lines, size_t pos)
+static size_t shiftForEndPosition(const QVector<DecompilerColumnLine> &lines, size_t pos)
 {
-    for (const DecompilerAddressLine &line : lines) {
+    for (const DecompilerColumnLine &line : lines) {
         if (pos == line.start) {
             return line.shiftBefore;
         }
@@ -1350,33 +1784,62 @@ static size_t shiftForEndPosition(const QVector<DecompilerAddressLine> &lines, s
     return lines.isEmpty() ? 0 : lines.last().shiftInLine;
 }
 
-static RCodeMeta *copyCodeMetaWithAddressColumn(RCodeMeta *source)
+static RCodeMeta *copyCodeMetaWithColumns(
+    RCodeMeta *source,
+    bool showAddresses,
+    bool showDisassembly,
+    QHash<RVA, QString> &disassemblyCache)
 {
     RCodeMeta *display = copyCodeMeta(source);
     QString text(display->code);
-    QVector<DecompilerAddressLine> lines = collectAddressLines(text);
+    QVector<DecompilerColumnLine> lines = collectAddressLines(text);
     if (!assignLineAddresses(lines, display)) {
         return display;
     }
 
     int addressWidth = RAddressString(0).size();
-    for (const DecompilerAddressLine &line : lines) {
+    int disassemblyWidth = 0;
+    for (DecompilerColumnLine &line : lines) {
         if (line.address != RVA_INVALID) {
             addressWidth
                 = std::max(addressWidth, static_cast<int>(RAddressString(line.address).size()));
+            if (showDisassembly) {
+                auto instruction = disassemblyCache.constFind(line.address);
+                if (instruction == disassemblyCache.constEnd()) {
+                    const QString assembly
+                        = Core()
+                              ->cmdRawAt(
+                                  "pi 1 @e:scr.color=0,scr.html=false,asm.pseudo=false,"
+                                  "asm.esil=false,asm.addr=false",
+                                  line.address)
+                              .simplified();
+                    instruction = disassemblyCache.insert(line.address, assembly);
+                }
+                line.disassembly = instruction.value();
+                disassemblyWidth
+                    = std::max(disassemblyWidth, static_cast<int>(line.disassembly.size()));
+            }
         }
     }
 
     QString rendered;
-    const int prefixWidth = addressWidth + 2;
+    const int prefixWidth = (showAddresses ? addressWidth + 2 : 0)
+                            + (showDisassembly ? disassemblyWidth + 3 : 0);
     rendered.reserve(text.size() + lines.size() * prefixWidth);
     size_t inserted = 0;
-    for (DecompilerAddressLine &line : lines) {
-        QString prefix
-            = line.address == RVA_INVALID
-                  ? QString(addressWidth, QLatin1Char(' '))
-                  : RAddressString(line.address).rightJustified(addressWidth, QLatin1Char(' '));
-        prefix.append(QStringLiteral("  "));
+    for (DecompilerColumnLine &line : lines) {
+        QString prefix;
+        if (showAddresses) {
+            prefix
+                = line.address == RVA_INVALID
+                      ? QString(addressWidth, QLatin1Char(' '))
+                      : RAddressString(line.address).rightJustified(addressWidth, QLatin1Char(' '));
+            prefix.append(QStringLiteral("  "));
+        }
+        if (showDisassembly) {
+            prefix.append(line.disassembly.leftJustified(disassemblyWidth, QLatin1Char(' ')));
+            prefix.append(QStringLiteral(" | "));
+        }
         line.shiftBefore = inserted;
         line.shiftInLine = inserted + static_cast<size_t>(prefix.size());
         inserted += static_cast<size_t>(prefix.size());
@@ -1400,8 +1863,10 @@ static RCodeMeta *copyCodeMetaWithAddressColumn(RCodeMeta *source)
         RCodeMetaItem *annotation = reinterpret_cast<RCodeMetaItem *>(iter);
 #endif
         if (annotation->type == R_CODEMETA_TYPE_OFFSET) {
-            for (const DecompilerAddressLine &line : lines) {
-                if (annotation->start >= line.nextStart || annotation->end <= line.start) {
+            for (const DecompilerColumnLine &line : lines) {
+                // pdc ranges can start on the preceding newline. Only extend
+                // the range to the prefix of a line with annotated text.
+                if (annotation->start >= line.end || annotation->end <= line.start) {
                     continue;
                 }
                 annotation->start = line.start + line.shiftBefore;
@@ -1422,19 +1887,28 @@ static RCodeMeta *copyCodeMetaWithAddressColumn(RCodeMeta *source)
 
 void DecompilerWidget::setCode(RCodeMeta *newCode)
 {
+    symbolTargets.clear();
+    outgoingXRefsCache.clear();
+    symbolTargetsReady = false;
     sourceCode.reset(newCode);
-    updateDisplayedCode();
+    disassemblyCache.clear();
+    updateDisplayedCode(previousFunctionAddr == decompiledFunctionAddr);
 }
 
-void DecompilerWidget::updateDisplayedCode()
+void DecompilerWidget::updateDisplayedCode(bool preserveFolds)
 {
+    hoveredToken = {};
+    pressedTokenTarget = RVA_INVALID;
     connectCursorPositionChanged(false);
+    mCtxMenu->setAnnotationHere(nullptr);
     if (syntaxHighlighter) {
         syntaxHighlighter->setDocument(nullptr);
     }
     this->code.reset(
-        showAddressColumn ? copyCodeMetaWithAddressColumn(sourceCode.get())
-                          : copyCodeMeta(sourceCode.get()));
+        showAddressColumn || showDisassemblyColumn
+            ? copyCodeMetaWithColumns(
+                  sourceCode.get(), showAddressColumn, showDisassemblyColumn, disassemblyCache)
+            : copyCodeMeta(sourceCode.get()));
     QString text = remapAnnotationOffsetsToQString(*this->code);
     setHighlighter(hasCodeMetaSyntaxHighlights(this->code.get()));
 
@@ -1443,7 +1917,8 @@ void DecompilerWidget::updateDisplayedCode()
     // issues), temporarily detach the highlighter, update the document, then
     // reattach and schedule a queued rehighlight. This minimizes the risk of
     // crashes in the regex engine during synchronous document updates.
-    this->ui->textEdit->setPlainText(text);
+    ui->textEdit->setDecompiledCode(text, QString::fromUtf8(sourceCode->code), preserveFolds);
+    updateCursorContext();
     connectCursorPositionChanged(true);
 
     if (syntaxHighlighter) {
@@ -1452,6 +1927,7 @@ void DecompilerWidget::updateDisplayedCode()
         // event has been processed to avoid re-entrancy.
         QMetaObject::invokeMethod(syntaxHighlighter, "rehighlight", Qt::QueuedConnection);
     }
+    refreshDecompilerHover();
 }
 
 void DecompilerWidget::setAddressColumnVisible(bool visible)
@@ -1461,11 +1937,26 @@ void DecompilerWidget::setAddressColumnVisible(bool visible)
     }
     showAddressColumn = visible;
     Config()->setDecompilerShowAddresses(visible);
+    refreshDisplayColumns();
+}
 
+void DecompilerWidget::setDisassemblyColumnVisible(bool visible)
+{
+    if (showDisassemblyColumn == visible) {
+        return;
+    }
+    showDisassemblyColumn = visible;
+    Config()->setDecompilerShowDisassembly(visible);
+    refreshDisplayColumns();
+}
+
+void DecompilerWidget::refreshDisplayColumns()
+{
     int horizontalPosition = ui->textEdit->horizontalScrollBar()->sliderPosition();
     int verticalPosition = ui->textEdit->verticalScrollBar()->sliderPosition();
     updateDisplayedCode();
-    updateCursorPosition();
+    setAnnotationsAtCursor(ui->textEdit->textCursor().position());
+    setInfoForBreakpoints();
     highlightPC();
     highlightBreakpoints();
     ui->textEdit->horizontalScrollBar()->setSliderPosition(horizontalPosition);

src/widgets/DecompilerWidget.h

@@ -2,6 +2,7 @@
 #define DECOMPILERWIDGET_H
 
 #include <memory>
+#include <QHash>
 #include <QPointer>
 #include <QSyntaxHighlighter>
 #include <QTextEdit>
@@ -37,6 +38,8 @@ public slots:
     void highlightPC();
     void setAddressColumnVisible(bool visible);
     bool isAddressColumnVisible() const { return showAddressColumn; }
+    void setDisassemblyColumnVisible(bool visible);
+    bool isDisassemblyColumnVisible() const { return showDisassemblyColumn; }
 private slots:
     /**
      * @brief Copy to clipboard what's needed depending on the state of text
@@ -90,6 +93,15 @@ private:
     QPointer<QSyntaxHighlighter> syntaxHighlighter;
     bool decompilerSelectionEnabled;
     bool showAddressColumn = false;
+    bool showDisassemblyColumn = false;
+    QHash<RVA, QString> disassemblyCache;
+    QHash<QString, RVA> symbolTargets;
+    QHash<RVA, QList<XrefDescription>> outgoingXRefsCache;
+    bool symbolTargetsReady = false;
+    QTextCursor hoveredToken;
+    QPoint tokenPressPosition;
+    RVA pressedTokenTarget = RVA_INVALID;
+    bool followedTokenOnClick = false;
 
     ut64 currentOffset = UT64_MAX;
     /**
@@ -114,12 +126,12 @@ private:
      * Specifies the lowest offset of instructions among all the instructions in
      * the decompiled function.
      */
-    RVA lowestOffsetInCode;
+    RVA lowestOffsetInCode = RVA_MAX;
     /**
      * Specifies the highest offset of instructions among all the instructions
      * in the decompiled function.
      */
-    RVA highestOffsetInCode;
+    RVA highestOffsetInCode = 0;
 
     /**
      * @brief Gets the current decompiler selected by the user.
@@ -129,6 +141,7 @@ private:
     Decompiler *getCurrentDecompiler();
 
     void refreshOptionsCombo();
+    void refreshDisplayColumns();
 
     /**
      * @brief Calls the function doRefresh() if the address specified is a part
@@ -164,6 +177,15 @@ private:
      *     - Program Counter(PC) while debugging
      */
     void updateSelection();
+    void setDecompilerSelections(QList<QTextEdit::ExtraSelection> selections);
+    void setHoveredToken(const QTextCursor &cursor);
+    void updateDecompilerHover(const QPoint &pos, Qt::MouseButtons buttons);
+    void refreshDecompilerHover();
+    QTextCursor cursorOnCharacter(const QPoint &pos) const;
+    RVA tokenTarget(QTextCursor &cursor);
+    void invalidateTokenTargets();
+    void cacheSymbolTarget(const QString &name, RVA address);
+    RVA symbolTarget(const QString &name, RVA offset);
     /**
      * @brief Connect/Disconnect SIGNAL-SLOT connection that deals with changes
      * in cursor position.
@@ -175,6 +197,7 @@ private:
      * @param connectPositionChange
      */
     void connectCursorPositionChanged(bool connectPositionChange);
+    RVA updateCursorContext();
     /**
      * @brief Find the current global offset in sync and update cursor
      * to the position specified by this offset (found using positionForOffset()
@@ -183,6 +206,7 @@ private:
     void updateCursorPosition();
 
     QString getWindowTitle() const override;
+    QWidget *widgetToFocusOnRaise() override;
 
     /**
      * @brief Event filter that intercept the following events:
@@ -290,7 +314,7 @@ private:
     bool addressInRange(RVA addr);
 
     void setCode(RCodeMeta *code);
-    void updateDisplayedCode();
+    void updateDisplayedCode(bool preserveFolds = true);
 
     void setHighlighter(bool codeMetaHighlighter);
     bool isSourceDecompilerSelected() const;

src/widgets/DecompilerWidget.ui

@@ -31,7 +31,7 @@
      <number>0</number>
     </property>
     <item>
-     <widget class="QPlainTextEdit" name="textEdit">
+     <widget class="DecompilerTextEdit" name="textEdit">
       <property name="lineWrapMode">
        <enum>QPlainTextEdit::NoWrap</enum>
       </property>
@@ -150,6 +150,13 @@
    </layout>
   </widget>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>DecompilerTextEdit</class>
+   <extends>QPlainTextEdit</extends>
+   <header>widgets/DecompilerTextEdit.h</header>
+  </customwidget>
+ </customwidgets>
  <resources/>
  <connections/>
 </ui>

src/widgets/DisassemblerGraphView.cpp

@@ -11,6 +11,7 @@
 #include "common/TempConfig.h"
 #include "core/Iaito.h"
 #include "core/MainWindow.h"
+#include "widgets/ExceptionBar.h"
 
 #include <QAction>
 #include <QActionGroup>
@@ -117,6 +118,11 @@ DisassemblerGraphView::DisassemblerGraphView(
 {
     highlight_token = nullptr;
     auto *layout = new QVBoxLayout(this);
+    exceptionBar = new ExceptionBar(this);
+    layout->addWidget(exceptionBar);
+    connect(exceptionBar, &ExceptionBar::seekRequested, this, [this](quint64 address) {
+        this->seekable->seek(address);
+    });
     // Signals that require a refresh all
     connect(Core(), &IaitoCore::refreshAll, this, &DisassemblerGraphView::refreshView);
     connect(Core(), &IaitoCore::commentsChanged, this, &DisassemblerGraphView::refreshView);
@@ -153,6 +159,13 @@ DisassemblerGraphView::DisassemblerGraphView(
     contextMenu->addAction(&actionExportGraph);
     contextMenu->addMenu(layoutMenu);
     addBasicBlockContentMenu();
+    showExceptionsAction = contextMenu->addAction(tr("Show exception regions"));
+    showExceptionsAction->setCheckable(true);
+    showExceptionsAction->setChecked(true);
+    showExceptionsAction->setToolTip(tr(
+        "Colored bubbles mark protected blocks. Dashed arrows show possible exception transfers."));
+    connect(showExceptionsAction, &QAction::toggled, this, &DisassemblerGraphView::refreshView);
+    exceptionMenu = blockMenu->addMenu(tr("Exception handlers"));
     if (mainWindow) {
         if (QAction *overviewAction = mainWindow->getOverviewAction()) {
             contextMenu->addAction(overviewAction);
@@ -338,6 +351,12 @@ void DisassemblerGraphView::loadCurrentGraph()
     disassembly_blocks.clear();
     blocks.clear();
     outgoingXRefsCache.clear();
+    exceptionEdges.clear();
+    exceptionShapes.clear();
+    exceptionRegions = fcn ? Core()->getExceptionRegions(currentFcnAddr) : QList<ExceptionRegion>();
+    exceptionBar->setRegions(exceptionRegions, seekable->getOffset());
+    setViewportMargins(0, exceptionRegions.isEmpty() ? 0 : exceptionBar->sizeHint().height(), 0, 0);
+    showExceptionsAction->setVisible(!exceptionRegions.isEmpty());
 
     if (highlight_token) {
         delete highlight_token;
@@ -426,6 +445,9 @@ void DisassemblerGraphView::loadCurrentGraph()
 
         addBlock(gb);
     }
+    if (showExceptionsAction->isChecked()) {
+        addExceptionBlocks();
+    }
     cleanupEdges(blocks);
 
     if (!func["blocks"].toArray().isEmpty()) {
@@ -433,6 +455,146 @@ void DisassemblerGraphView::loadCurrentGraph()
     }
 }
 
+void DisassemblerGraphView::addExceptionBlocks()
+{
+    for (const auto &region : exceptionRegions) {
+        if (!blockForAddress(region.handler)) {
+            // The handler may be in another function or not analyzed yet. Show
+            // a navigation node without creating or changing analysis blocks.
+            DisassemblyBlock db;
+            db.entry = region.handler;
+            db.size = 1;
+            db.externalHandler = true;
+            appendBlockContentLine(db, tr("Handler outside this function"), region.handler, 1);
+            appendBlockContentLine(db, tr("Double-click to open"), region.handler, 1);
+            disassembly_blocks[db.entry] = db;
+            GraphBlock block;
+            block.entry = db.entry;
+            addBlock(block);
+        }
+    }
+    for (auto &item : disassembly_blocks) {
+        auto &db = item.second;
+        QStringList tags;
+        for (const auto &region : exceptionRegions) {
+            if (!db.externalHandler && region.protects(db.entry, db.size)) {
+                tags << tr("TRY #%1").arg(region.index);
+                const auto *handler = blockForAddress(region.handler);
+                auto &edges = blocks.at(db.entry).edges;
+                if (handler && handler->entry != db.entry
+                    && std::none_of(edges.begin(), edges.end(), [handler](const GraphEdge &edge) {
+                           return edge.target == handler->entry;
+                       })) {
+                    edges.emplace_back(handler->entry);
+                    exceptionEdges[{db.entry, handler->entry}] = region.color();
+                }
+            }
+            if (region.handler >= db.entry && region.handler - db.entry < db.size) {
+                tags << tr("HANDLER #%1").arg(region.index);
+            }
+        }
+        if (!tags.isEmpty()) {
+            db.header_text = Text(
+                QStringLiteral("[%1]  %2")
+                    .arg(RAddressString(db.entry), tags.join(QStringLiteral(" · "))),
+                ConfigColor(ADDR),
+                Qt::transparent);
+        }
+        prepareGraphNode(blocks.at(db.entry));
+    }
+}
+
+void DisassemblerGraphView::graphLayoutChanged()
+{
+    exceptionShapes.clear();
+    if (exceptionRegions.isEmpty() || !showExceptionsAction->isChecked()) {
+        return;
+    }
+    // Keep the bubbles inside image export and scrollable graph bounds.
+    for (auto &item : blocks) {
+        item.second.x += 12;
+        item.second.y += 12;
+        for (auto &edge : item.second.edges) {
+            edge.polyline.translate(12, 12);
+        }
+    }
+    width += 24;
+    height += 24;
+    QSet<QPair<quint64, quint64>> seen;
+    for (const auto &region : exceptionRegions) {
+        const auto range = qMakePair(region.from, region.to);
+        if (seen.contains(range)) {
+            continue;
+        }
+        seen.insert(range);
+        QRectF bounds;
+        for (const auto &item : blocks) {
+            const auto &block = item.second;
+            const auto &db = disassembly_blocks.at(block.entry);
+            if (db.externalHandler || !region.protects(db.entry, db.size)) {
+                continue;
+            }
+            bounds = bounds.united(QRectF(block.x, block.y, block.width, block.height));
+        }
+        if (bounds.isEmpty()) {
+            continue;
+        }
+        // One envelope covers every protected block, including disconnected
+        // blocks and the space between them. Membership comes from the entire
+        // half-open metadata range, not just its boundary instructions.
+        QPainterPath shape;
+        shape.addRoundedRect(bounds.adjusted(-8, -8, 8, 8), 12, 12);
+        for (const auto &item : blocks) {
+            const auto &block = item.second;
+            const auto &db = disassembly_blocks.at(block.entry);
+            if (db.externalHandler || !region.protects(db.entry, db.size)) {
+                QPainterPath excluded;
+                excluded.addRect(
+                    QRectF(block.x - 2, block.y - 2, block.width + 4, block.height + 4));
+                shape = shape.subtracted(excluded);
+            }
+        }
+        exceptionShapes.append({region, shape});
+    }
+    // Keep inner regions readable over their enclosing regions.
+    std::stable_sort(
+        exceptionShapes.begin(),
+        exceptionShapes.end(),
+        [](const ExceptionShape &a, const ExceptionShape &b) {
+            const QRectF ar = a.path.boundingRect();
+            const QRectF br = b.path.boundingRect();
+            return ar.width() * ar.height() > br.width() * br.height();
+        });
+}
+
+void DisassemblerGraphView::drawBackground(QPainter &p, bool interactive)
+{
+    p.setRenderHint(QPainter::Antialiasing);
+    for (const auto &shape : exceptionShapes) {
+        const bool active = interactive && shape.region.contains(seekable->getOffset());
+        QColor fill = shape.region.color();
+        fill.setAlpha(active ? 48 : 22);
+        p.setBrush(fill);
+        QPen outline(shape.region.color(), active ? 2 : 1);
+        outline.setStyle(Qt::DashLine);
+        p.setPen(outline);
+        p.drawPath(shape.path);
+    }
+}
+
+QString DisassemblerGraphView::exceptionTooltip(RVA address, RVA size) const
+{
+    QStringList details;
+    for (const auto &region : exceptionRegions) {
+        if (region.touches(address, size)) {
+            details << region.description();
+        }
+    }
+    return details.join(QStringLiteral("\n\n"))
+        .toHtmlEscaped()
+        .replace(QLatin1Char('\n'), QStringLiteral("<br>"));
+}
+
 DisassemblerGraphView::EdgeConfigurationMapping DisassemblerGraphView::getEdgeConfigurations()
 {
     EdgeConfigurationMapping result;
@@ -478,8 +640,7 @@ DisassemblerGraphView::MinimapBars DisassemblerGraphView::getMinimapBars()
                 }
             }
         };
-        const bool hasTitleBar = Config()->getGraphBlockEntryOffset()
-                                 && !db.header_text.lines.empty();
+        const bool hasTitleBar = !db.header_text.lines.empty();
         if (hasTitleBar) {
             y += int(db.header_text.lines.size()) * charHeight;
         } else {
@@ -682,7 +843,7 @@ void DisassemblerGraphView::drawBlock(QPainter &p, GraphView::GraphBlock &block,
         free(s);
     }
 
-    const bool hasTitleBar = Config()->getGraphBlockEntryOffset() && !db.header_text.lines.empty();
+    const bool hasTitleBar = !db.header_text.lines.empty();
 
     // Draw basic block body with the default background.
     p.drawRect(blockRect);
@@ -733,7 +894,7 @@ void DisassemblerGraphView::drawBlock(QPainter &p, GraphView::GraphBlock &block,
         const int luma = (titleBg.red() * 299 + titleBg.green() * 587 + titleBg.blue() * 114)
                          / 1000;
         const QColor titleTextColor = (luma > 128) ? QColor(Qt::black) : QColor(Qt::white);
-        const QString titleText = "[" + RAddressString(db.entry) + "]";
+        const QString titleText = db.header_text.ToQString();
         QFont titleFont = Config()->getFont();
         titleFont.setBold(true);
         p.setPen(titleTextColor);
@@ -907,7 +1068,11 @@ GraphView::EdgeConfiguration DisassemblerGraphView::edgeConfiguration(
 {
     EdgeConfiguration ec;
     DisassemblyBlock &db = disassembly_blocks[from.entry];
-    if (to->entry == db.true_path) {
+    const auto exception = exceptionEdges.find({from.entry, to->entry});
+    if (exception != exceptionEdges.end()) {
+        ec.color = exception->second;
+        ec.lineStyle = Qt::DashLine;
+    } else if (to->entry == db.true_path) {
         ec.color = brtrueColor;
     } else if (to->entry == db.false_path) {
         ec.color = brfalseColor;
@@ -1144,6 +1309,7 @@ void DisassemblerGraphView::applyAddressRangeSelection(RVA start, RVA end)
 
 void DisassemblerGraphView::onSeekChanged(RVA addr)
 {
+    exceptionBar->setAddress(addr);
     blockMenu->setOffset(addr);
     DisassemblyBlock *db = blockForAddress(addr);
     bool switchFunction = false;
@@ -1172,8 +1338,13 @@ void DisassemblerGraphView::takeTrue()
 
     if (db->true_path != RVA_INVALID) {
         seekable->seek(db->true_path);
-    } else if (!blocks[db->entry].edges.empty()) {
-        seekable->seek(blocks[db->entry].edges[0].target);
+    } else {
+        for (const auto &edge : blocks[db->entry].edges) {
+            if (!exceptionEdges.count({db->entry, edge.target})) {
+                seekable->seek(edge.target);
+                break;
+            }
+        }
     }
 }
 
@@ -1186,8 +1357,13 @@ void DisassemblerGraphView::takeFalse()
 
     if (db->false_path != RVA_INVALID) {
         seekable->seek(db->false_path);
-    } else if (!blocks[db->entry].edges.empty()) {
-        seekable->seek(blocks[db->entry].edges[0].target);
+    } else {
+        for (const auto &edge : blocks[db->entry].edges) {
+            if (!exceptionEdges.count({db->entry, edge.target})) {
+                seekable->seek(edge.target);
+                break;
+            }
+        }
     }
 }
 
@@ -1538,6 +1714,7 @@ void DisassemblerGraphView::blockContextMenuRequested(
                                ? offset
                                : static_cast<RVA>(block.entry);
     blockMenu->setOffset(menuOffset);
+    exceptionBar->populateMenu(exceptionMenu, block.entry, disassembly_blocks.at(block.entry).size);
     actionUnhighlight.setVisible(Core()->getBBHighlighter()->getBasicBlock(block.entry));
     actionUnhighlightInstruction.setVisible(
         instrForAddress(menuOffset) && Core()->getBIHighlighter()->getBasicInstruction(menuOffset));
@@ -1574,6 +1751,11 @@ void DisassemblerGraphView::blockDoubleClicked(
     GraphView::GraphBlock &block, QMouseEvent *event, QPoint pos)
 {
     Q_UNUSED(event);
+    if (disassembly_blocks.at(block.entry).externalHandler) {
+        seekable->seek(block.entry);
+        refreshView();
+        return;
+    }
     seekable->seekToReference(getAddrForMouseEvent(block, &pos));
 }
 
@@ -1581,8 +1763,15 @@ void DisassemblerGraphView::blockHelpEvent(
     GraphView::GraphBlock &block, QHelpEvent *event, QPoint pos)
 {
     Instr *instr = getInstrForMouseEvent(block, &pos);
+    const auto &db = disassembly_blocks.at(block.entry);
+    const QString exceptions = exceptionTooltip(
+        instr ? instr->addr : db.entry, instr ? qMax<ut64>(instr->size, 1) : db.size);
     if (!instr || instr->fullText.lines.empty()) {
         if (!instr) {
+            if (!exceptions.isEmpty()) {
+                QToolTip::showText(event->globalPos(), exceptions, viewport());
+                return;
+            }
             QToolTip::hideText();
             event->ignore();
             return;
@@ -1604,6 +1793,10 @@ void DisassemblerGraphView::blockHelpEvent(
         }
     }
 
+    if (!exceptions.isEmpty()) {
+        QToolTip::showText(event->globalPos(), exceptions, viewport());
+        return;
+    }
     if (instr->fullText.lines.empty()) {
         QToolTip::hideText();
         event->ignore();
@@ -1616,6 +1809,26 @@ void DisassemblerGraphView::blockHelpEvent(
 bool DisassemblerGraphView::helpEvent(QHelpEvent *event)
 {
     if (!GraphView::helpEvent(event)) {
+        const QPoint position = viewToLogicalCoordinates(event->pos());
+        QStringList details;
+        for (const auto &shape : exceptionShapes) {
+            if (shape.path.contains(position)) {
+                for (const auto &region : exceptionRegions) {
+                    if (region.from == shape.region.from && region.to == shape.region.to) {
+                        details << region.description();
+                    }
+                }
+            }
+        }
+        if (!details.isEmpty()) {
+            QToolTip::showText(
+                event->globalPos(),
+                details.join(QStringLiteral("\n\n"))
+                    .toHtmlEscaped()
+                    .replace(QLatin1Char('\n'), QStringLiteral("<br>")),
+                viewport());
+            return true;
+        }
         QToolTip::hideText();
         event->ignore();
     }

src/widgets/DisassemblerGraphView.h

@@ -6,6 +6,7 @@
 #include <QHash>
 #include <QLabel>
 #include <QPainter>
+#include <QPainterPath>
 #include <QShortcut>
 #include <QStringList>
 #include <QWidget>
@@ -18,6 +19,7 @@
 class QTextEdit;
 class FallbackSyntaxHighlighter;
 class QJsonArray;
+class ExceptionBar;
 
 class DisassemblerGraphView : public IaitoGraphView
 {
@@ -90,6 +92,7 @@ class DisassemblerGraphView : public IaitoGraphView
         ut64 false_path = 0;
         bool terminal = false;
         bool indirectcall = false;
+        bool externalHandler = false;
     };
 
     enum class BasicBlockContent {
@@ -159,6 +162,8 @@ public slots:
     void applyAddressRangeSelection(RVA start, RVA end);
 
 protected:
+    void drawBackground(QPainter &p, bool interactive) override;
+    void graphLayoutChanged() override;
     void paintEvent(QPaintEvent *event) override;
     void blockContextMenuRequested(
         GraphView::GraphBlock &block, QContextMenuEvent *event, QPoint pos) override;
@@ -188,6 +193,19 @@ private:
     QMenu *contextMenu;
     BasicBlockContent basicBlockContent = BasicBlockContent::Disassembly;
     QHash<RVA, QList<XrefDescription>> outgoingXRefsCache;
+    QList<ExceptionRegion> exceptionRegions;
+    struct ExceptionShape
+    {
+        ExceptionRegion region;
+        QPainterPath path;
+    };
+    QList<ExceptionShape> exceptionShapes;
+    std::map<std::pair<ut64, ut64>, QColor> exceptionEdges;
+    ExceptionBar *exceptionBar;
+    QMenu *exceptionMenu;
+    QAction *showExceptionsAction;
+    void addExceptionBlocks();
+    QString exceptionTooltip(RVA address, RVA size) const;
 
     void connectSeekChanged(bool disconnect);
 

src/widgets/DisassemblyWidget.cpp

@@ -10,8 +10,10 @@
 #include "common/TempConfig.h"
 #include "core/MainWindow.h"
 #include "dialogs/ShortcutKeysDialog.h"
+#include "menus/ContextMenuIcons.h"
 #include "menus/DisassemblyContextMenu.h"
 
+#include "widgets/ExceptionBar.h"
 #include <algorithm>
 #include <cmath>
 #include <limits>
@@ -29,6 +31,7 @@
 #include <QSplitter>
 #include <QTextBlock>
 #include <QTextBlockUserData>
+#include <QTextLayout>
 #include <QToolTip>
 #include <QVBoxLayout>
 #include <QWheelEvent>
@@ -67,22 +70,29 @@ static int getMaxVisibleDisassemblyLines(QPlainTextEdit *textEdit)
     return qMax(1, int(std::ceil(availableHeight / lineHeight)));
 }
 
-static QString tokenAtCursor(QTextCursor cursor)
+static QTextCursor tokenRangeAtCursor(QTextCursor cursor)
 {
     const int clickedCharPos = cursor.positionInBlock();
-    cursor.select(QTextCursor::BlockUnderCursor);
-    const QString line = cursor.selectedText().replace("\xc2\xa0", " ");
+    const QString line = cursor.block().text().replace("\xc2\xa0", " ");
 
     static const QRegularExpression tokenRegExp(R"(\b(?<!\.)([^\s]+)\b(?!\.))");
     QRegularExpressionMatchIterator i = tokenRegExp.globalMatch(line);
     while (i.hasNext()) {
         QRegularExpressionMatch match = i.next();
         if (match.capturedStart() <= clickedCharPos && match.capturedEnd() > clickedCharPos) {
-            return match.captured();
+            const int start = cursor.block().position() + match.capturedStart();
+            cursor.setPosition(start);
+            cursor.setPosition(start + match.capturedLength(), QTextCursor::KeepAnchor);
+            return cursor;
         }
     }
 
-    return QString();
+    return {};
+}
+
+static QString tokenAtCursor(const QTextCursor &cursor)
+{
+    return tokenRangeAtCursor(cursor).selectedText();
 }
 
 static QString wordAtCursor(QTextCursor cursor)
@@ -176,7 +186,17 @@ DisassemblyWidget::DisassemblyWidget(MainWindow *main)
     auto *container = new QWidget;
     container->setMinimumHeight(0);
     container->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Ignored);
-    auto *containerLayout = new QHBoxLayout(container);
+    auto *outerLayout = new QVBoxLayout(container);
+    outerLayout->setContentsMargins(0, 0, 0, 0);
+    outerLayout->setSpacing(0);
+    exceptionBar = new ExceptionBar(container);
+    outerLayout->addWidget(exceptionBar);
+    connect(exceptionBar, &ExceptionBar::seekRequested, this, [this](quint64 address) {
+        seekable->seek(address);
+    });
+    exceptionMenu = mCtxMenu->addMenu(tr("Exception handlers"));
+    auto *containerLayout = new QHBoxLayout;
+    outerLayout->addLayout(containerLayout, 1);
     containerLayout->setContentsMargins(0, 0, 0, 0);
     containerLayout->setSpacing(0);
     containerLayout->addWidget(splitter);
@@ -221,6 +241,11 @@ DisassemblyWidget::DisassemblyWidget(MainWindow *main)
     // Event filter to intercept double clicks in the textbox
     // and showing tooltips when hovering above those offsets
     mDisasTextEdit->viewport()->installEventFilter(this);
+    connect(
+        mDisasTextEdit->horizontalScrollBar(),
+        &QScrollBar::valueChanged,
+        this,
+        &DisassemblyWidget::refreshDisassemblyHover);
 
     // Set Disas context menu
     mDisasTextEdit->setContextMenuPolicy(Qt::CustomContextMenu);
@@ -283,6 +308,25 @@ DisassemblyWidget::DisassemblyWidget(MainWindow *main)
         this,
         &DisassemblyWidget::on_refreshContents);
 
+    connect(
+        mCtxMenu,
+        &DisassemblyContextMenu::flagAboutToChange,
+        this,
+        &DisassemblyWidget::updateContextMenuState);
+    mCtxMenu->registerFlagShortcut();
+    auto *followAction = new QAction(tr("Follow reference"), this);
+    ShortcutMgr()->bindAction("disasm.jumpToOffset", followAction);
+    followAction->setShortcutContext(Qt::WidgetWithChildrenShortcut);
+    followAction->setAutoRepeat(false);
+#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
+    followAction->setShortcutVisibleInContextMenu(true);
+#endif
+    ContextMenuIcons::setIcon(
+        this, followAction, ContextMenuIcons::Icon::Navigation, QColor(103, 80, 164));
+    connect(followAction, &QAction::triggered, this, [this]() {
+        jumpToOffsetUnderCursor(mDisasTextEdit->textCursor());
+    });
+    mCtxMenu->insertAction(mCtxMenu->actions().first(), followAction);
     addActions(mCtxMenu->actions());
 
 #define ADD_ACTION(id, ctx, slot) \
@@ -298,8 +342,18 @@ DisassemblyWidget::DisassemblyWidget(MainWindow *main)
         mainWindow->showMemoryWidget(MemoryWidgetType::Graph);
     })
 
+    ADD_ACTION("disasm.switchToDecompiler", Qt::WidgetWithChildrenShortcut, [this] {
+        mainWindow->showMemoryWidget(MemoryWidgetType::Decompiler);
+    })
+
     ADD_ACTION("disasm.seekPrev", Qt::WidgetWithChildrenShortcut, &DisassemblyWidget::seekPrev)
 
+    ADD_ACTION("disasm.cursorLeft", Qt::WidgetWithChildrenShortcut, [this]() {
+        mDisasTextEdit->moveCursor(QTextCursor::Left);
+    })
+    ADD_ACTION("disasm.cursorRight", Qt::WidgetWithChildrenShortcut, [this]() {
+        mDisasTextEdit->moveCursor(QTextCursor::Right);
+    })
     ADD_ACTION("disasm.cursorDown", Qt::WidgetWithChildrenShortcut, [this]() {
         moveCursorRelative(false, false);
     })
@@ -317,13 +371,15 @@ DisassemblyWidget::DisassemblyWidget(MainWindow *main)
 
 void DisassemblyWidget::setPreviewMode(bool previewMode)
 {
+    setSeekHistoryBarEnabled(!previewMode);
     mDisasTextEdit->setContextMenuPolicy(previewMode ? Qt::NoContextMenu : Qt::CustomContextMenu);
     mCtxMenu->setEnabled(!previewMode);
     for (auto action : mCtxMenu->actions()) {
         action->setEnabled(!previewMode);
     }
     for (auto action : actions()) {
-        if (action->shortcut() == Qt::Key_Space || action->shortcut() == Qt::Key_Escape) {
+        if (action->shortcut() == Qt::Key_Space || action->shortcut() == Qt::Key_Tab
+            || action->shortcut() == Qt::Key_Escape) {
             action->setEnabled(!previewMode);
         }
     }
@@ -498,6 +554,7 @@ void DisassemblyWidget::refreshDisasm(RVA offset)
         return;
     }
 
+    setHoveredToken({});
     topOffset = Core()->alignInstructionAddress(topOffset);
 
     if (maxLines <= 0) {
@@ -511,6 +568,9 @@ void DisassemblyWidget::refreshDisasm(RVA offset)
     breakpoints = Core()->getBreakpointsAddresses();
 
     // Retrieve disassembly lines
+    if (!cached) {
+        exceptionRegions = Core()->getExceptionRegions();
+    }
     outgoingXRefsCache.clear();
     const QList<DisassemblyLine> oldLines = lines;
     if (cached) {
@@ -566,6 +626,7 @@ void DisassemblyWidget::refreshDisasm(RVA offset)
         }
     }
 
+    updateExceptionBar(!cached);
     if (!cached || !updateDocumentIncrementally(oldLines, newVisible)) {
         rebuildDocument(newVisible);
     }
@@ -573,6 +634,24 @@ void DisassemblyWidget::refreshDisasm(RVA offset)
     addressScrollBar->setViewport(maxLines, bottomOffset > topOffset ? bottomOffset - topOffset : 1);
     addressScrollBar->setAddress(topOffset);
     addressScrollBar->setSeekAddress(seekable->getOffset());
+    refreshDisassemblyHover();
+}
+
+void DisassemblyWidget::updateExceptionBar(bool force)
+{
+    const RVA address = seekable->getOffset();
+    const RVA function = Core()->getFunctionStart(address);
+    if (force || exceptionFunction != function) {
+        exceptionFunction = function;
+        QList<ExceptionRegion> regions;
+        if (function != RVA_INVALID && !exceptionRegions.isEmpty()) {
+            const auto blocks = Core()->cmdj("afbj @ " + RAddressString(function)).array();
+            regions = ExceptionRegion::forBlocks(exceptionRegions, blocks);
+        }
+        exceptionBar->setRegions(regions, address);
+    } else {
+        exceptionBar->setAddress(address);
+    }
 }
 
 void DisassemblyWidget::decorateBlock(
@@ -580,6 +659,14 @@ void DisassemblyWidget::decorateBlock(
 {
     QTextCursor cursor(block);
     QTextBlockFormat f;
+    for (const auto &region : exceptionRegions) {
+        if (region.contains(line.offset) || region.handler == line.offset) {
+            QColor color = region.color();
+            color.setAlpha(region.handler == line.offset ? 65 : 26);
+            f.setBackground(color);
+            break;
+        }
+    }
     if (Core()->isBreakpoint(breakpoints, line.offset)) {
         f.setBackground(ConfigColor("gui.breakpoint_background"));
     } else {
@@ -644,7 +731,7 @@ bool DisassemblyWidget::documentMatchesLines(const QList<DisassemblyLine> &ref,
     return true;
 }
 
-// Scrolls by editing only the rows that changed and blitting the rest of the view
+// Scrolls by editing only the rows that changed, retaining the other text layouts.
 bool DisassemblyWidget::updateDocumentIncrementally(
     const QList<DisassemblyLine> &oldLines, int newVisible)
 {
@@ -682,19 +769,15 @@ bool DisassemblyWidget::updateDocumentIncrementally(
         return false;
     }
 
-    QAbstractTextDocumentLayout *layout = doc->documentLayout();
-    const bool layoutSignalsBlocked = layout->blockSignals(true);
     connectCursorPositionChanged(true);
     mDisasTextEdit->setLockScroll(true);
+    mDisasTextEdit->setUpdatesEnabled(false);
 
     QTextCursor cursor(doc);
     const QTextBlockFormat regular = cursor.blockFormat();
     BasicBlockColor bbColor;
-    qreal delta = 0;
     cursor.beginEditBlock();
     if (shift > 0) {
-        delta = mDisasTextEdit->blockTop(doc->findBlockByNumber(shift))
-                - mDisasTextEdit->blockTop(doc->firstBlock());
         cursor.movePosition(QTextCursor::Start);
         cursor.movePosition(QTextCursor::NextBlock, QTextCursor::KeepAnchor, shift);
         cursor.removeSelectedText();
@@ -735,29 +818,18 @@ bool DisassemblyWidget::updateDocumentIncrementally(
         doc->findBlockByNumber(i).clearLayout();
     }
     doc->lastBlock().clearLayout();
-    if (shift < 0) {
-        delta = -(
-            mDisasTextEdit->blockTop(doc->findBlockByNumber(-shift))
-            - mDisasTextEdit->blockTop(doc->firstBlock()));
-    }
-    layout->blockSignals(layoutSignalsBlocked);
     mDisasTextEdit->setLockScroll(false);
     connectCursorPositionChanged(false);
 
+    // Editing the document also invalidates layouts, selections and dirty regions.
+    // Repaint from the updated document instead of moving stale viewport pixels.
+    mDisasTextEdit->setUpdatesEnabled(true);
+
     visibleLines = newVisible;
     if (!documentMatchesLines(lines, newVisible)) {
         return false; // the full rebuild repairs whatever went wrong
     }
 
-    // Blit everything below the document margin so only the new rows get painted
-    QWidget *viewport = mDisasTextEdit->viewport();
-    const int margin = qMax(0, qCeil(mDisasTextEdit->textOffset()));
-    if (qAbs(delta - qRound(delta)) > 0.01) {
-        viewport->update();
-    } else {
-        viewport->scroll(
-            0, -qRound(delta), QRect(0, margin, viewport->width(), viewport->height() - margin));
-    }
     updateCursorPosition();
     if (readCurrentDisassemblyOffset() == seekable->getOffset()) {
         // The cursor did not move, extend the highlights to the new rows
@@ -987,28 +1059,13 @@ void DisassemblyWidget::clearBasicBlockColorCache()
 
 void DisassemblyWidget::highlightCurrentLine()
 {
+    updateExceptionBar();
     QList<QTextEdit::ExtraSelection> extraSelections;
     QColor highlightColor = ConfigColor("lineHighlight");
 
     // Highlight the current word
     QTextCursor cursor = mDisasTextEdit->textCursor();
-    auto clickedCharPos = cursor.positionInBlock();
-    // Select the line (BlockUnderCursor matches a line with current
-    // implementation)
-    cursor.select(QTextCursor::BlockUnderCursor);
-    // Remove any non-breakable space from the current line
-    QString searchString = cursor.selectedText().replace("\xc2\xa0", " ");
-    // Cut the line in "tokens" that can be highlighted
-    static const QRegularExpression tokenRegExp(R"(\b(?<!\.)([^\s]+)\b(?!\.))");
-    QRegularExpressionMatchIterator i = tokenRegExp.globalMatch(searchString);
-    while (i.hasNext()) {
-        QRegularExpressionMatch match = i.next();
-        // Current token is under our cursor, select this one
-        if (match.capturedStart() <= clickedCharPos && match.capturedEnd() > clickedCharPos) {
-            curHighlightedWord = match.captured();
-            break;
-        }
-    }
+    curHighlightedWord = tokenAtCursor(cursor);
 
     // Highlight the current line
     QTextEdit::ExtraSelection highlightSelection;
@@ -1039,7 +1096,7 @@ void DisassemblyWidget::highlightCurrentLine()
     QString scrHighlight = Core()->getConfig("scr.highlight");
     extraSelections.append(createHighlightSelections(mDisasTextEdit, scrHighlight));
 
-    mDisasTextEdit->setExtraSelections(extraSelections);
+    setDisassemblySelections(extraSelections);
 }
 
 void DisassemblyWidget::highlightPCLine()
@@ -1076,7 +1133,7 @@ void DisassemblyWidget::highlightPCLine()
     QList<QTextEdit::ExtraSelection> currentSelections = mDisasTextEdit->extraSelections();
     currentSelections.append(pcSelections);
 
-    mDisasTextEdit->setExtraSelections(currentSelections);
+    setDisassemblySelections(currentSelections);
 }
 
 void DisassemblyWidget::showDisasContextMenu(const QPoint &pt)
@@ -1087,12 +1144,6 @@ void DisassemblyWidget::showDisasContextMenu(const QPoint &pt)
     }
     updateContextMenuState();
 
-    RVA selectionStart = RVA_INVALID;
-    int selectionSize = 0;
-    if (getSelectedInstructionRange(&selectionStart, &selectionSize)) {
-        mCtxMenu->setSelectionRange(selectionStart, selectionSize);
-    }
-
     mCtxMenu->exec(mDisasTextEdit->mapToGlobal(pt));
 }
 
@@ -1259,8 +1310,7 @@ void DisassemblyWidget::updateCursorPosition()
         if (parked.position() != 0 || parked.hasSelection()) {
             mDisasTextEdit->moveCursor(QTextCursor::Start);
         }
-        mDisasTextEdit->setExtraSelections(
-            createSameWordsSelections(mDisasTextEdit, curHighlightedWord));
+        setDisassemblySelections(createSameWordsSelections(mDisasTextEdit, curHighlightedWord));
     } else {
         RVA currentCursorOffset = readCurrentDisassemblyOffset();
         QTextCursor originalCursor = mDisasTextEdit->textCursor();
@@ -1285,7 +1335,7 @@ void DisassemblyWidget::updateCursorPosition()
                 break;
             } else if (lineOffset != RVA_INVALID && lineOffset > offset) {
                 mDisasTextEdit->moveCursor(QTextCursor::Start);
-                mDisasTextEdit->setExtraSelections({});
+                setDisassemblySelections({});
                 break;
             }
 
@@ -1354,11 +1404,19 @@ void DisassemblyWidget::cursorPositionChanged()
 
 void DisassemblyWidget::updateContextMenuState()
 {
+    const RVA offset = readCurrentDisassemblyOffset();
+    if (offset != RVA_INVALID) {
+        mCtxMenu->setOffset(offset);
+    }
+    exceptionBar->populateMenu(exceptionMenu, offset);
     QTextCursor cursor = mDisasTextEdit->textCursor();
     bool hasSelection = cursor.hasSelection();
 
     mCtxMenu->setCanCopy(hasSelection);
-    mCtxMenu->setSelectionRange(RVA_INVALID, 0);
+    RVA selectionStart = RVA_INVALID;
+    int selectionSize = 0;
+    getSelectedInstructionRange(&selectionStart, &selectionSize);
+    mCtxMenu->setSelectionRange(selectionStart, selectionSize);
 
     if (hasSelection) {
         // A word is selected so use it
@@ -1449,8 +1507,18 @@ void DisassemblyWidget::copyBytes()
 
 void DisassemblyWidget::jumpToOffsetUnderCursor(const QTextCursor &cursor)
 {
-    RVA offset = readDisassemblyOffset(cursor);
-    seekable->seekToReference(offset);
+    const QString link = DeepLink::linkAt(cursor.block().text(), cursor.positionInBlock());
+    if (!link.isEmpty()) {
+        DeepLink::handle(mainWindow, link);
+        return;
+    }
+    const RVA target = tokenTarget(cursor);
+    const RVA offset = readDisassemblyOffset(cursor);
+    if (target != RVA_INVALID && target != offset) {
+        seekable->seek(target);
+    } else {
+        seekable->seekToReference(offset);
+    }
 }
 
 QList<XrefDescription> DisassemblyWidget::getOutgoingXRefs(RVA offset)
@@ -1490,36 +1558,109 @@ RVA DisassemblyWidget::xrefTargetForToken(RVA offset, const QString &token)
     return RVA_INVALID;
 }
 
-bool DisassemblyWidget::isActionableTokenAt(const QPoint &pos)
+RVA DisassemblyWidget::tokenTarget(const QTextCursor &cursor)
 {
-    QTextCursor cursor = mDisasTextEdit->cursorForPosition(pos);
     const RVA offset = readDisassemblyOffset(cursor);
     if (offset == RVA_INVALID) {
-        return false;
+        return RVA_INVALID;
     }
 
     const QString token = tokenAtCursor(cursor);
     if (token.trimmed().isEmpty()) {
-        return false;
+        return RVA_INVALID;
     }
 
-    return xrefTargetForToken(offset, token) != RVA_INVALID;
+    if (token.startsWith(QLatin1String("0x"), Qt::CaseInsensitive)) {
+        bool isAddress = false;
+        const RVA address = token.toULongLong(&isAddress, 16);
+        if (isAddress) {
+            return address;
+        }
+    }
+
+    {
+        RCoreLocked core = Core()->core();
+        const QByteArray name = token.toUtf8();
+        if (RFlagItem *flag = r_flag_get(core->flags, name.constData())) {
+            return flag->addr;
+        }
+        if (RAnalFunction *function = r_anal_get_function_byname(core->anal, name.constData())) {
+            return function->addr;
+        }
+    }
+
+    return xrefTargetForToken(offset, token);
 }
 
 QString DisassemblyWidget::deepLinkAt(const QPoint &pos)
 {
-    const QTextCursor cursor = mDisasTextEdit->cursorForPosition(pos);
+    const QTextCursor cursor = mDisasTextEdit->cursorOnCharacter(pos);
     return DeepLink::linkAt(cursor.block().text(), cursor.positionInBlock());
 }
 
-void DisassemblyWidget::updateDisassemblyCursor(const QPoint &pos, Qt::MouseButtons buttons)
+void DisassemblyWidget::setDisassemblySelections(QList<QTextEdit::ExtraSelection> selections)
 {
+    constexpr int hoverProperty = QTextFormat::UserProperty;
+    selections.erase(
+        std::remove_if(
+            selections.begin(),
+            selections.end(),
+            [](const QTextEdit::ExtraSelection &s) { return s.format.boolProperty(hoverProperty); }),
+        selections.end());
+    if (hoveredToken.hasSelection()) {
+        QTextEdit::ExtraSelection hover;
+        hover.cursor = hoveredToken;
+        hover.format.setBackground(ConfigColor("wordHighlight"));
+        hover.format.setProperty(hoverProperty, true);
+        selections.append(hover);
+    }
+    mDisasTextEdit->setExtraSelections(selections);
+}
+
+void DisassemblyWidget::setHoveredToken(const QTextCursor &cursor)
+{
+    if (hoveredToken == cursor) {
+        return;
+    }
+    hoveredToken = cursor;
+    setDisassemblySelections(mDisasTextEdit->extraSelections());
+}
+
+void DisassemblyWidget::updateDisassemblyHover(const QPoint &pos, Qt::MouseButtons buttons)
+{
+    QTextCursor hover;
+    Qt::CursorShape shape = Qt::ArrowCursor;
     if (buttons & Qt::LeftButton) {
-        mDisasTextEdit->viewport()->setCursor(Qt::IBeamCursor);
-    } else if (isActionableTokenAt(pos) || !deepLinkAt(pos).isEmpty()) {
-        mDisasTextEdit->viewport()->setCursor(Qt::PointingHandCursor);
+        shape = Qt::IBeamCursor;
+    } else {
+        QTextCursor cursor = mDisasTextEdit->cursorOnCharacter(pos);
+        const QString text = cursor.block().text();
+        const QString link = DeepLink::linkAt(text, cursor.positionInBlock());
+        if (!link.isEmpty()) {
+            const int start = cursor.block().position()
+                              + text.lastIndexOf(link, cursor.positionInBlock());
+            cursor.setPosition(start);
+            cursor.setPosition(start + link.size(), QTextCursor::KeepAnchor);
+            hover = cursor;
+        } else if (tokenTarget(cursor) != RVA_INVALID) {
+            hover = tokenRangeAtCursor(cursor);
+        }
+        if (hover.hasSelection()) {
+            shape = Qt::PointingHandCursor;
+        }
+    }
+    mDisasTextEdit->viewport()->setCursor(shape);
+    setHoveredToken(hover);
+}
+
+void DisassemblyWidget::refreshDisassemblyHover()
+{
+    if (mDisasTextEdit->viewport()->underMouse()) {
+        updateDisassemblyHover(
+            mDisasTextEdit->viewport()->mapFromGlobal(QCursor::pos()), QApplication::mouseButtons());
     } else {
         mDisasTextEdit->viewport()->setCursor(Qt::ArrowCursor);
+        setHoveredToken({});
     }
 }
 
@@ -1527,40 +1668,68 @@ bool DisassemblyWidget::eventFilter(QObject *obj, QEvent *event)
 {
     if (event->type() == QEvent::Resize && obj == mDisasTextEdit->viewport()) {
         QMetaObject::invokeMethod(this, [this]() { updateMaxLines(); }, Qt::QueuedConnection);
+    } else if (event->type() == QEvent::MouseButtonPress && obj == mDisasTextEdit->viewport()) {
+        QMouseEvent *mouseEvent = static_cast<QMouseEvent *>(event);
+        pressedTokenTarget = RVA_INVALID;
+        followedTokenOnClick = false;
+        if (mouseEvent->button() == Qt::LeftButton && mouseEvent->modifiers() == Qt::NoModifier) {
+            tokenPressPosition = mouseEvent->pos();
+            pressedTokenTarget = tokenTarget(mDisasTextEdit->cursorOnCharacter(tokenPressPosition));
+        }
+        updateDisassemblyHover(mouseEvent->pos(), mouseEvent->buttons());
     } else if (event->type() == QEvent::MouseMove && obj == mDisasTextEdit->viewport()) {
         QMouseEvent *mouseEvent = static_cast<QMouseEvent *>(event);
-        updateDisassemblyCursor(mouseEvent->pos(), mouseEvent->buttons());
+        if ((mouseEvent->buttons() & Qt::LeftButton)
+            && (mouseEvent->pos() - tokenPressPosition).manhattanLength()
+                   >= QApplication::startDragDistance()) {
+            pressedTokenTarget = RVA_INVALID;
+        }
+        updateDisassemblyHover(mouseEvent->pos(), mouseEvent->buttons());
     } else if (event->type() == QEvent::MouseButtonRelease && obj == mDisasTextEdit->viewport()) {
         QMouseEvent *mouseEvent = static_cast<QMouseEvent *>(event);
+        const RVA target = pressedTokenTarget;
+        pressedTokenTarget = RVA_INVALID;
         if (mouseEvent->button() == Qt::LeftButton && !mDisasTextEdit->textCursor().hasSelection()) {
             const QString link = deepLinkAt(mouseEvent->pos());
             if (!link.isEmpty()) {
                 DeepLink::handle(mainWindow, link);
                 return true;
             }
+            if (target != RVA_INVALID
+                && (mouseEvent->pos() - tokenPressPosition).manhattanLength()
+                       < QApplication::startDragDistance()
+                && target == tokenTarget(mDisasTextEdit->cursorOnCharacter(mouseEvent->pos()))) {
+                followedTokenOnClick = true;
+                seekable->seek(target);
+                updateDisassemblyHover(mouseEvent->pos(), mouseEvent->buttons());
+                return true;
+            }
         }
-        updateDisassemblyCursor(mouseEvent->pos(), mouseEvent->buttons());
+        updateDisassemblyHover(mouseEvent->pos(), mouseEvent->buttons());
     } else if (event->type() == QEvent::Leave && obj == mDisasTextEdit->viewport()) {
         mDisasTextEdit->viewport()->setCursor(Qt::ArrowCursor);
+        setHoveredToken({});
     } else if (
         event->type() == QEvent::MouseButtonDblClick
         && (obj == mDisasTextEdit || obj == mDisasTextEdit->viewport())) {
         QMouseEvent *mouseEvent = static_cast<QMouseEvent *>(event);
+        pressedTokenTarget = RVA_INVALID;
+        if (mouseEvent->button() != Qt::LeftButton || followedTokenOnClick) {
+            return true;
+        }
 
-        const QTextCursor &cursor = mDisasTextEdit->cursorForPosition(
-#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
-            mouseEvent->position().toPoint()
-#else
-            QPoint(mouseEvent->x(), mouseEvent->y())
-#endif
-        );
+        const QTextCursor cursor = mDisasTextEdit->cursorOnCharacter(mouseEvent->pos());
         jumpToOffsetUnderCursor(cursor);
 
         return true;
     } else if (event->type() == QEvent::ToolTip && obj == mDisasTextEdit->viewport()) {
         QHelpEvent *helpEvent = static_cast<QHelpEvent *>(event);
 
-        QTextCursor cursorForWord = mDisasTextEdit->cursorForPosition(helpEvent->pos());
+        QTextCursor cursorForWord = mDisasTextEdit->cursorOnCharacter(helpEvent->pos());
+        if (cursorForWord.isNull()) {
+            QToolTip::hideText();
+            return true;
+        }
         const QString registerTooltip = PreviewTooltip::buildRegisterPreview(
             wordAtCursor(cursorForWord));
         if (!registerTooltip.isEmpty()) {
@@ -1568,9 +1737,8 @@ bool DisassemblyWidget::eventFilter(QObject *obj, QEvent *event)
             return true;
         }
 
-        const QString token = tokenAtCursor(cursorForWord);
         RVA offsetFrom = readDisassemblyOffset(cursorForWord);
-        RVA offsetTo = xrefTargetForToken(offsetFrom, token);
+        RVA offsetTo = tokenTarget(cursorForWord);
 
         // Only if the offset we point *to* is different from the one the
         // cursor is currently on *and* the former is a valid offset, we are
@@ -1582,6 +1750,22 @@ bool DisassemblyWidget::eventFilter(QObject *obj, QEvent *event)
             }
         }
 
+        if (offsetTo == RVA_INVALID || offsetTo == offsetFrom) {
+            QStringList details;
+            for (const auto &region : exceptionRegions) {
+                if (region.contains(offsetFrom) || region.handler == offsetFrom) {
+                    details << region.description();
+                }
+            }
+            if (!details.isEmpty()) {
+                QToolTip::showText(
+                    helpEvent->globalPos(),
+                    details.join(QStringLiteral("\n\n"))
+                        .toHtmlEscaped()
+                        .replace(QLatin1Char('\n'), QStringLiteral("<br>")),
+                    this);
+            }
+        }
         return true;
     }
 
@@ -1603,11 +1787,6 @@ void DisassemblyWidget::keyPressEvent(QKeyEvent *event)
         }
         return;
     }
-    if (ShortcutMgr()->matches("disasm.jumpToOffset", event)) {
-        const QTextCursor cursor = mDisasTextEdit->textCursor();
-        jumpToOffsetUnderCursor(cursor);
-    }
-
     MemoryDockWidget::keyPressEvent(event);
 }
 
@@ -1654,6 +1833,7 @@ void DisassemblyWidget::colorsUpdatedSlot()
 {
     PreviewTooltip::applyStyleSheet(this);
     setupColors();
+    setDisassemblySelections(mDisasTextEdit->extraSelections());
     // Skip the expensive refreshDisasm() (which re-runs disassembleLines)
     // when only the interface palette changed; the cached line HTML still
     // carries valid radare2 colors, so a repaint is enough.
@@ -1682,9 +1862,36 @@ void DisassemblyWidget::setupColors()
             .arg(ConfigColor("btext").name()));
 }
 
-qreal DisassemblyTextEdit::blockTop(const QTextBlock &block) const
+// Mouse hits must land on text, rather than snap to a nearby caret position.
+QTextCursor DisassemblyTextEdit::cursorOnCharacter(const QPoint &pos) const
 {
-    return blockBoundingGeometry(block).top();
+    if (!viewport()->rect().contains(pos)) {
+        return {};
+    }
+    const QTextBlock block = cursorForPosition(pos).block();
+    if (!block.isValid()) {
+        return {};
+    }
+    const QPointF localPos = QPointF(pos)
+                             - blockBoundingGeometry(block).translated(contentOffset()).topLeft();
+    const QTextLayout *layout = block.layout();
+    for (int i = 0; i < layout->lineCount(); ++i) {
+        const QTextLine line = layout->lineAt(i);
+        const QRectF rect = line.naturalTextRect();
+        if (localPos.x() < rect.left() || localPos.x() >= rect.right() || localPos.y() < rect.top()
+            || localPos.y() >= rect.bottom()) {
+            continue;
+        }
+        const int column = line.xToCursor(localPos.x(), QTextLine::CursorOnCharacter);
+        const QString text = block.text();
+        if (column >= text.size() || text.at(column).isSpace()) {
+            return {};
+        }
+        QTextCursor cursor(block);
+        cursor.setPosition(block.position() + column);
+        return cursor;
+    }
+    return {};
 }
 
 // Viewport rectangles of every block, in document order
@@ -1698,11 +1905,6 @@ QList<QRectF> DisassemblyTextEdit::blockRects() const
     return rects;
 }
 
-qreal DisassemblyTextEdit::textOffset() const
-{
-    return (blockBoundingGeometry(document()->begin()).topLeft() + contentOffset()).y();
-}
-
 bool DisassemblyTextEdit::viewportEvent(QEvent *event)
 {
     switch (event->type()) {
@@ -1735,6 +1937,9 @@ void DisassemblyTextEdit::scrollContentsBy(int dx, int dy)
 {
     if (!lockScroll) {
         QPlainTextEdit::scrollContentsBy(dx, dy);
+        // Qt scrolls existing pixels, including the function lines fixed to the viewport.
+        // Repaint the whole viewport to erase their shifted copies.
+        viewport()->update();
     }
 }
 
@@ -1755,7 +1960,7 @@ void DisassemblyTextEdit::mousePressEvent(QMouseEvent *event)
 
 void DisassemblyTextEdit::paintEvent(QPaintEvent *event)
 {
-    // The viewport is opaque so scrolling can blit it, paint its background
+    // The viewport is opaque, so every damaged area needs its background painted.
     QPainter(viewport()).fillRect(event->rect(), backgroundColor);
     QPlainTextEdit::paintEvent(event);
 
@@ -1794,7 +1999,7 @@ void DisassemblyTextEdit::paintEvent(QPaintEvent *event)
         return;
     }
 
-    // Endpoints only depend on visible rows so blitted lines match a fresh paint
+    // Derive endpoints from the visible rows.
     const auto &functionRanges = disas->getFunctionRanges();
     for (auto range = functionRanges.cbegin(); range != functionRanges.cend(); ++range) {
         auto firstLine = rowSpan.lowerBound(range.key());
@@ -1813,7 +2018,7 @@ void DisassemblyTextEdit::paintEvent(QPaintEvent *event)
 
 void DisassemblyWidget::seekPrev()
 {
-    Core()->seekPrev();
+    seekable->seekPrev();
 }
 
 /*********************

src/widgets/DisassemblyWidget.h

@@ -22,6 +22,7 @@ class DisassemblyContextMenu;
 class DisassemblyLeftPanel;
 class QWheelEvent;
 class AddressScrollBar;
+class ExceptionBar;
 
 class DisassemblyWidget : public MemoryDockWidget
 {
@@ -93,6 +94,7 @@ private:
     qreal wheelRemainder;
 
     QString curHighlightedWord;
+    QTextCursor hoveredToken;
 
     struct BasicBlockColor
     {
@@ -103,6 +105,11 @@ private:
 
     QList<BasicBlockColor> basicBlockColorCache;
     QHash<RVA, QList<XrefDescription>> outgoingXRefsCache;
+    QList<ExceptionRegion> exceptionRegions;
+    RVA exceptionFunction = RVA_INVALID;
+    ExceptionBar *exceptionBar;
+    QMenu *exceptionMenu;
+    void updateExceptionBar(bool force = false);
 
     /**
      * offset of lines below the first line of the current seek
@@ -110,6 +117,9 @@ private:
     int cursorLineOffset;
     int cursorCharOffset;
     bool seekFromCursor;
+    QPoint tokenPressPosition;
+    RVA pressedTokenTarget = RVA_INVALID;
+    bool followedTokenOnClick = false;
     bool applyingAddressRangeSelection = false;
     bool publishingAddressRangeSelection = false;
 
@@ -148,8 +158,11 @@ private:
     void jumpToOffsetUnderCursor(const QTextCursor &);
     QList<XrefDescription> getOutgoingXRefs(RVA offset);
     RVA xrefTargetForToken(RVA offset, const QString &token);
-    bool isActionableTokenAt(const QPoint &pos);
-    void updateDisassemblyCursor(const QPoint &pos, Qt::MouseButtons buttons);
+    RVA tokenTarget(const QTextCursor &cursor);
+    void setDisassemblySelections(QList<QTextEdit::ExtraSelection> selections);
+    void setHoveredToken(const QTextCursor &cursor);
+    void updateDisassemblyHover(const QPoint &pos, Qt::MouseButtons buttons);
+    void refreshDisassemblyHover();
     QString deepLinkAt(const QPoint &pos);
 };
 
@@ -167,8 +180,7 @@ public:
     void setLockScroll(bool lock) { this->lockScroll = lock; }
     void setBackgroundColor(const QColor &color) { backgroundColor = color; }
 
-    qreal textOffset() const;
-    qreal blockTop(const QTextBlock &block) const;
+    QTextCursor cursorOnCharacter(const QPoint &pos) const;
     QList<QRectF> blockRects() const;
 
 public:

src/widgets/ExceptionBar.cpp

@@ -0,0 +1,78 @@
+#include "ExceptionBar.h"
+
+#include <QHBoxLayout>
+#include <QMenu>
+#include <QToolButton>
+
+ExceptionBar::ExceptionBar(QWidget *parent)
+    : QWidget(parent)
+{
+    setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
+    auto *layout = new QHBoxLayout(this);
+    layout->setContentsMargins(0, 0, 0, 0);
+    navigator = new QToolButton(this);
+    navigator->setAutoRaise(true);
+    navigator->setPopupMode(QToolButton::InstantPopup);
+    navigator->setMenu(new QMenu(navigator));
+    navigator->setToolTip(tr("Navigate protected ranges and exception handlers (read-only)"));
+    layout->addWidget(navigator);
+    layout->addStretch();
+    hide();
+}
+
+void ExceptionBar::addRegion(QMenu *menu, const ExceptionRegion &region)
+{
+    auto *entry = menu->addMenu(QStringLiteral("#%1 · %2").arg(region.index).arg(region.label()));
+    entry->setToolTipsVisible(true);
+    entry->menuAction()->setToolTip(region.description());
+    const auto add = [this, entry](const QString &title, quint64 address) {
+        auto *action = entry->addAction(QStringLiteral("%1 · 0x%2").arg(title).arg(address, 0, 16));
+        connect(action, &QAction::triggered, this, [this, address]() {
+            emit seekRequested(address);
+        });
+    };
+    add(tr("Go to handler"), region.handler);
+    add(tr("Go to try start"), region.from);
+    add(tr("Go to try end (exclusive)"), region.to);
+    // In PE metadata filter values 0 and 1 are constants, not code addresses.
+    if (region.filter > 1 && region.filter != ExceptionRegion::Invalid) {
+        add(tr("Go to filter"), region.filter);
+    }
+}
+
+void ExceptionBar::setRegions(const QList<ExceptionRegion> &value, quint64 address)
+{
+    regions = value;
+    navigator->menu()->clear();
+    for (const auto &region : regions) {
+        addRegion(navigator->menu(), region);
+    }
+    navigator->setText(tr("Exceptions (%1)").arg(regions.size()));
+    setVisible(!regions.isEmpty());
+    setAddress(address);
+}
+
+void ExceptionBar::setAddress(quint64 address)
+{
+    QStringList details;
+    details << tr("Navigate this function's protected ranges and exception handlers (read-only)");
+    for (const auto &region : regions) {
+        if (region.contains(address) || region.handler == address) {
+            details << region.description();
+        }
+    }
+    navigator->setToolTip(details.join(QStringLiteral("\n\n"))
+                              .toHtmlEscaped()
+                              .replace(QLatin1Char('\n'), QStringLiteral("<br>")));
+}
+
+void ExceptionBar::populateMenu(QMenu *menu, quint64 address, quint64 size)
+{
+    menu->clear();
+    for (const auto &region : regions) {
+        if (region.touches(address, size)) {
+            addRegion(menu, region);
+        }
+    }
+    menu->menuAction()->setVisible(!menu->isEmpty());
+}

src/widgets/ExceptionBar.h

@@ -0,0 +1,29 @@
+#ifndef EXCEPTIONBAR_H
+#define EXCEPTIONBAR_H
+
+#include "common/ExceptionInfo.h"
+#include <QWidget>
+
+class QToolButton;
+class QMenu;
+
+// Shared, read-only exception navigator for code views.
+class ExceptionBar : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit ExceptionBar(QWidget *parent = nullptr);
+    void setRegions(const QList<ExceptionRegion> &regions, quint64 address);
+    void setAddress(quint64 address);
+    void populateMenu(QMenu *menu, quint64 address, quint64 size = 1);
+
+signals:
+    void seekRequested(quint64 address);
+
+private:
+    QList<ExceptionRegion> regions;
+    QToolButton *navigator;
+    void addRegion(QMenu *menu, const ExceptionRegion &region);
+};
+
+#endif

src/widgets/ExportsWidget.cpp

@@ -95,6 +95,9 @@ ExportsProxyModel::ExportsProxyModel(ExportsModel *source_model, QObject *parent
 
 bool ExportsProxyModel::filterAcceptsRow(int row, const QModelIndex &parent) const
 {
+    if (!filterAcceptsType(row, parent)) {
+        return false;
+    }
     QModelIndex index = sourceModel()->index(row, 0, parent);
     auto exp = index.data(ExportsModel::ExportDescriptionRole).value<ExportDescription>();
     return exp.name.contains(FILTER_REGEX);
@@ -138,7 +141,7 @@ ExportsWidget::ExportsWidget(MainWindow *main)
 
     exportsModel = new ExportsModel(&exports, this);
     exportsProxyModel = new ExportsProxyModel(exportsModel, this);
-    setModels(exportsProxyModel);
+    setModels(exportsProxyModel, ExportsModel::NameColumn, ExportsModel::TypeColumn);
     ui->treeView->sortByColumn(ExportsModel::OffsetColumn, Qt::AscendingOrder);
 
     QShortcut *toggle_shortcut = ShortcutMgr()->registerShortcut("widget.toggleExports", main);

src/widgets/FilesystemWidget.cpp

@@ -1,12 +1,19 @@
 #include "FilesystemWidget.h"
 #include "common/Helpers.h"
+#include "common/SourceLineReference.h"
 #include "core/Iaito.h"
 #include "core/MainWindow.h"
+#include <algorithm>
 #include <QApplication>
 #include <QContextMenuEvent>
+#include <QFontDatabase>
+#include <QGridLayout>
 #include <QInputDialog>
 #include <QLabel>
 #include <QMessageBox>
+#include <QSet>
+#include <QSignalBlocker>
+#include <QStyle>
 
 FilesystemTreeModel::FilesystemTreeModel(QObject *parent)
     : QStandardItemModel(parent)
@@ -22,65 +29,90 @@ void FilesystemTreeModel::setRootPath(const QString &path)
 
 void FilesystemTreeModel::refresh()
 {
-    clear();
-    setHorizontalHeaderLabels(QStringList() << tr("Name") << tr("Size") << tr("Type"));
+    removeRows(0, rowCount());
     if (!rootPath.isEmpty()) {
         populateDirectory(invisibleRootItem(), rootPath);
     }
 }
 
-QJsonDocument FilesystemTreeModel::parseMdCommand(const QString &path)
+QList<FileInfo> FilesystemTreeModel::readDirectory(const QString &path)
 {
-    QString sanitizedPath = IaitoCore::sanitizeStringForCommand(path);
-    QString output = Core()->cmdRaw(QString("mdj %1").arg(sanitizedPath));
-    QJsonParseError error;
-    QJsonDocument doc = QJsonDocument::fromJson(output.toUtf8(), &error);
-    if (error.error != QJsonParseError::NoError) {
-        qWarning() << "Failed to parse mdj output:" << error.errorString();
-        return QJsonDocument();
+    // Use the API so source paths, including spaces and command metacharacters, stay intact.
+    QList<FileInfo> entries;
+    RCoreLocked core = Core()->core();
+    RListIter *iter;
+    if (path == QStringLiteral("/")) {
+        RFSRoot *root;
+        IaitoRListForeach(core->fs->roots, iter, RFSRoot, root)
+        {
+            const QString mountPath = QString::fromUtf8(root->path);
+            if (mountPath != QStringLiteral("/")) {
+                entries.append({mountPath, QStringLiteral("directory"), 0});
+            }
+        }
     }
-    return doc;
+    const QByteArray pathBytes = path.toUtf8();
+    RList *files = r_fs_dir(core->fs, pathBytes.constData());
+    RFSFile *file;
+    IaitoRListForeach(files, iter, RFSFile, file)
+    {
+        const QString name = QString::fromUtf8(file->name);
+        if (name.isEmpty() || name == QStringLiteral(".") || name == QStringLiteral("..")) {
+            continue;
+        }
+        entries.append(
+            {name,
+             file->type == 'd' || file->type == 'm' ? QStringLiteral("directory")
+                                                    : QStringLiteral("file"),
+             file->size});
+    }
+    r_list_free(files);
+    std::sort(entries.begin(), entries.end(), [](const FileInfo &a, const FileInfo &b) {
+        if (a.type != b.type) {
+            return a.type == QStringLiteral("directory");
+        }
+        return QString::localeAwareCompare(a.name, b.name) < 0;
+    });
+    return entries;
 }
 
 void FilesystemTreeModel::populateDirectory(QStandardItem *parentItem, const QString &path)
 {
-    QJsonDocument doc = parseMdCommand(path);
-    if (!doc.isArray()) {
-        return;
-    }
-
-    QJsonArray array = doc.array();
-    for (const QJsonValue &value : array) {
-        if (!value.isObject())
-            continue;
-        QJsonObject obj = value.toObject();
-
-        QString name = obj["name"].toString();
-        QString type = obj["type"].toString();
-        quint64 size = obj["size"].toVariant().toULongLong();
+    for (const auto &entry : readDirectory(path)) {
+        const QString &name = entry.name;
+        const QString &type = entry.type;
 
         QList<QStandardItem *> items;
         QStandardItem *nameItem = new QStandardItem(name);
-        nameItem->setData(path + "/" + name, Qt::UserRole); // Store full path
+        const QString fullPath = name.startsWith(QLatin1Char('/'))
+                                     ? name
+                                     : QDir::cleanPath(path + QLatin1Char('/') + name);
+        nameItem->setData(fullPath, PathRole);
+        nameItem->setToolTip(fullPath);
         items << nameItem;
-        items << new QStandardItem(QString::number(size));
+        items << new QStandardItem(QString::number(entry.size));
         items << new QStandardItem(type);
 
         if (type == "directory") {
             nameItem->setIcon(qApp->style()->standardIcon(QStyle::SP_DirIcon));
+            nameItem->setData(false, LoadedRole);
             // Add a dummy child to make it expandable
-            nameItem->appendRow(new QStandardItem("Loading..."));
+            auto *placeholder = new QStandardItem(tr("Loading..."));
+            placeholder->setEnabled(false);
+            nameItem->appendRow(placeholder);
         } else {
             nameItem->setIcon(qApp->style()->standardIcon(QStyle::SP_FileIcon));
         }
 
+        for (auto *item : items) {
+            item->setEditable(false);
+        }
         parentItem->appendRow(items);
     }
 }
 
 FilesystemWidget::FilesystemWidget(MainWindow *main)
     : IaitoDockWidget(main)
-    , mainWindow(main)
 {
     setWindowTitle(tr("Filesystem"));
     setObjectName("FilesystemWidget");
@@ -90,7 +122,12 @@ FilesystemWidget::FilesystemWidget(MainWindow *main)
     setupFilesystemTree();
     setupActions();
 
-    refreshMountpoints();
+    refreshDeferrer = createRefreshDeferrer([this]() { refresh(); });
+    connect(Core(), &IaitoCore::refreshAll, this, &FilesystemWidget::refresh);
+    connect(Core(), &IaitoCore::functionsChanged, this, &FilesystemWidget::refresh);
+    connect(Core(), &IaitoCore::functionRenamed, this, &FilesystemWidget::refresh);
+    connect(Core(), &IaitoCore::codeRebased, this, &FilesystemWidget::refresh);
+    refresh();
 }
 
 FilesystemWidget::~FilesystemWidget() {}
@@ -107,9 +144,10 @@ void FilesystemWidget::setupUI()
     QVBoxLayout *mountLayout = new QVBoxLayout(mountpointsGroup);
 
     mountpointsList = new QListWidget(this);
+    mountpointsList->setMaximumHeight(80);
     mountLayout->addWidget(mountpointsList);
 
-    QHBoxLayout *mountControlsLayout = new QHBoxLayout();
+    auto *mountControlsLayout = new QGridLayout();
     fsTypeCombo = new QComboBox(this);
     mountPathEdit = new QLineEdit(this);
     mountPathEdit->setPlaceholderText(tr("Mount path (e.g., /mnt)"));
@@ -120,12 +158,12 @@ void FilesystemWidget::setupUI()
     mountButton = new QPushButton(tr("Mount"), this);
     umountButton = new QPushButton(tr("Umount"), this);
 
-    mountControlsLayout->addWidget(fsTypeCombo);
-    mountControlsLayout->addWidget(mountPathEdit);
-    mountControlsLayout->addWidget(offsetEdit);
-    mountControlsLayout->addWidget(optionsEdit);
-    mountControlsLayout->addWidget(mountButton);
-    mountControlsLayout->addWidget(umountButton);
+    mountControlsLayout->addWidget(fsTypeCombo, 0, 0);
+    mountControlsLayout->addWidget(mountPathEdit, 0, 1);
+    mountControlsLayout->addWidget(mountButton, 0, 2);
+    mountControlsLayout->addWidget(offsetEdit, 1, 0);
+    mountControlsLayout->addWidget(optionsEdit, 1, 1);
+    mountControlsLayout->addWidget(umountButton, 1, 2);
 
     mountLayout->addLayout(mountControlsLayout);
 
@@ -135,11 +173,44 @@ void FilesystemWidget::setupUI()
     filesystemGroup = new QGroupBox(tr("Filesystem Browser"), this);
     QVBoxLayout *fsLayout = new QVBoxLayout(filesystemGroup);
 
+    auto *navigation = new QHBoxLayout();
+    auto *upButton = new QPushButton(tr("Up"), this);
+    auto *sourcesButton = new QPushButton(tr("Source Files"), this);
+    auto *refreshButton = new QPushButton(tr("Refresh"), this);
+    browserPathEdit = new QLineEdit(QStringLiteral("/"), this);
+    browserPathEdit->setObjectName(QStringLiteral("filesystemPath"));
+    navigation->addWidget(upButton);
+    navigation->addWidget(browserPathEdit, 1);
+    navigation->addWidget(sourcesButton);
+    navigation->addWidget(refreshButton);
+    fsLayout->addLayout(navigation);
+    connect(upButton, &QPushButton::clicked, this, [this]() {
+        setBrowserPath(QDir::cleanPath(treeModel->getRootPath() + QStringLiteral("/..")));
+    });
+    connect(browserPathEdit, &QLineEdit::returnPressed, this, [this]() {
+        setBrowserPath(browserPathEdit->text());
+    });
+    connect(sourcesButton, &QPushButton::clicked, this, &FilesystemWidget::showSourceFiles);
+    connect(refreshButton, &QPushButton::clicked, this, &FilesystemWidget::refresh);
+
     filesystemTree = new QTreeView(this);
+    filesystemTree->setObjectName(QStringLiteral("filesystemTree"));
     treeModel = new FilesystemTreeModel(this);
     filesystemTree->setModel(treeModel);
     filesystemTree->setContextMenuPolicy(Qt::CustomContextMenu);
+    filesystemTree->setSelectionBehavior(QAbstractItemView::SelectRows);
+    filesystemTree->setEditTriggers(QAbstractItemView::NoEditTriggers);
+    filesystemTree->setUniformRowHeights(true);
+    filesystemTree->header()->setSectionResizeMode(0, QHeaderView::Stretch);
+    filesystemTree->header()->setSectionResizeMode(1, QHeaderView::ResizeToContents);
+    filesystemTree->header()->setSectionResizeMode(2, QHeaderView::ResizeToContents);
+    filesystemTree->header()->setStretchLastSection(false);
     connect(filesystemTree, &QTreeView::expanded, this, &FilesystemWidget::onTreeExpanded);
+    connect(
+        filesystemTree->selectionModel(),
+        &QItemSelectionModel::currentChanged,
+        this,
+        &FilesystemWidget::onTreeSelectionChanged);
     fsLayout->addWidget(filesystemTree);
 
     QHBoxLayout *fsControlsLayout = new QHBoxLayout();
@@ -153,6 +224,49 @@ void FilesystemWidget::setupUI()
 
     splitter->addWidget(filesystemGroup);
 
+    previewGroup = new QGroupBox(tr("File Preview"), this);
+    auto *previewLayout = new QVBoxLayout(previewGroup);
+    previewStatus = new QLabel(tr("Select a file to preview it."), previewGroup);
+    previewStatus->setTextFormat(Qt::PlainText);
+    previewStatus->setWordWrap(true);
+    previewLayout->addWidget(previewStatus);
+    previewTabs = new QTabWidget(previewGroup);
+    sourceFunctions = new QTreeWidget(previewTabs);
+    sourceFunctions->setObjectName(QStringLiteral("sourceFunctions"));
+    sourceFunctions->setHeaderLabels({tr("Function"), tr("Address")});
+    sourceLines = new QTreeWidget(previewTabs);
+    sourceLines->setObjectName(QStringLiteral("sourceLines"));
+    sourceLines->setHeaderLabels({tr("Address"), tr("Line"), tr("Source")});
+    sourceLines->setFont(QFontDatabase::systemFont(QFontDatabase::FixedFont));
+    auto navigate = [](QTreeWidgetItem *item, int) {
+        const QVariant address = item->data(0, Qt::UserRole);
+        if (address.isValid()) {
+            Core()->seekAndShow(address.toULongLong());
+        }
+    };
+    for (auto *tree : {sourceFunctions, sourceLines}) {
+        tree->setRootIsDecorated(false);
+        tree->setSelectionBehavior(QAbstractItemView::SelectRows);
+        tree->setUniformRowHeights(true);
+        connect(tree, &QTreeWidget::itemClicked, this, navigate);
+        connect(tree, &QTreeWidget::itemActivated, this, navigate);
+    }
+    sourceLines->header()->setSectionResizeMode(0, QHeaderView::ResizeToContents);
+    sourceLines->header()->setSectionResizeMode(1, QHeaderView::ResizeToContents);
+    fileContents = new QPlainTextEdit(previewTabs);
+    fileContents->setObjectName(QStringLiteral("filesystemContents"));
+    fileContents->setReadOnly(true);
+    fileContents->setFont(QFontDatabase::systemFont(QFontDatabase::FixedFont));
+    fileContents->setLineWrapMode(QPlainTextEdit::NoWrap);
+    previewTabs->addTab(sourceFunctions, tr("Functions"));
+    previewTabs->addTab(sourceLines, tr("Source Lines"));
+    previewTabs->addTab(fileContents, tr("Contents"));
+    previewLayout->addWidget(previewTabs);
+    splitter->addWidget(previewGroup);
+    splitter->setStretchFactor(1, 2);
+    splitter->setStretchFactor(2, 1);
+    splitter->setSizes({170, 400, 230});
+
     mainLayout->addWidget(splitter);
     setWidget(container);
 
@@ -173,7 +287,9 @@ void FilesystemWidget::setupUI()
 
 void FilesystemWidget::setupMountpointsList()
 {
-    // Will be populated in refreshMountpoints
+    connect(mountpointsList, &QListWidget::itemClicked, this, [this](QListWidgetItem *item) {
+        setBrowserPath(item->data(Qt::UserRole).toString());
+    });
 }
 
 void FilesystemWidget::setupFilesystemTree()
@@ -189,6 +305,7 @@ void FilesystemWidget::setupActions()
 
     connect(viewAction, &QAction::triggered, this, [this]() {
         QModelIndex index = filesystemTree->currentIndex();
+        index = index.sibling(index.row(), 0);
         if (index.isValid()) {
             QString path = index.data(Qt::UserRole).toString();
             if (path.isEmpty()) {
@@ -200,6 +317,7 @@ void FilesystemWidget::setupActions()
 
     connect(deleteAction, &QAction::triggered, this, [this]() {
         QModelIndex index = filesystemTree->currentIndex();
+        index = index.sibling(index.row(), 0);
         if (index.isValid()) {
             QString path = index.data(Qt::UserRole).toString();
             if (path.isEmpty()) {
@@ -211,6 +329,7 @@ void FilesystemWidget::setupActions()
 
     connect(mallocAction, &QAction::triggered, this, [this]() {
         QModelIndex index = filesystemTree->currentIndex();
+        index = index.sibling(index.row(), 0);
         if (index.isValid()) {
             QString path = index.data(Qt::UserRole).toString();
             if (path.isEmpty()) {
@@ -267,19 +386,16 @@ QList<PluginInfo> FilesystemWidget::parsePlugins(const QJsonDocument &doc)
 
 void FilesystemWidget::refreshMountpoints()
 {
-    QString output = Core()->cmdRaw("mj");
-    QJsonParseError error;
-    QJsonDocument doc = QJsonDocument::fromJson(output.toUtf8(), &error);
-    if (error.error != QJsonParseError::NoError) {
-        qWarning() << "Failed to parse mj output:" << error.errorString();
+    const QJsonDocument doc = Core()->cmdj("mj");
+    if (!doc.isObject()) {
         return;
     }
 
     mountpointsList->clear();
     fsTypeCombo->clear();
 
-    const QList<MountpointInfo> mountpoints = parseMountpoints(doc);
-    for (const MountpointInfo &mountpoint : mountpoints) {
+    currentMountpoints = parseMountpoints(doc);
+    for (const MountpointInfo &mountpoint : currentMountpoints) {
         QString details
             = QString("%1 @ 0x%2").arg(mountpoint.plugin, QString::number(mountpoint.offset, 16));
         if (!mountpoint.options.isEmpty()) {
@@ -300,6 +416,142 @@ void FilesystemWidget::refreshMountpoints()
     }
 }
 
+void FilesystemWidget::refresh()
+{
+    if (!refreshDeferrer->attemptRefresh(nullptr)) {
+        return;
+    }
+    const QString selectedPath = previewPath;
+    QSet<QString> expandedPaths;
+    auto visit = [this](auto &&self, const QModelIndex &parent, const auto &action) -> void {
+        for (int row = 0; row < treeModel->rowCount(parent); ++row) {
+            const QModelIndex index = treeModel->index(row, 0, parent);
+            action(index);
+            self(self, index, action);
+        }
+    };
+    visit(visit, QModelIndex(), [this, &expandedPaths](const QModelIndex &index) {
+        if (filesystemTree->isExpanded(index)) {
+            expandedPaths.insert(index.data(FilesystemTreeModel::PathRole).toString());
+        }
+    });
+    const QSignalBlocker selectionBlocker(filesystemTree->selectionModel());
+    refreshMountpoints();
+    treeModel->refresh();
+    bool selectedFileExists = false;
+    visit(
+        visit,
+        QModelIndex(),
+        [this, &expandedPaths, &selectedPath, &selectedFileExists](const QModelIndex &index) {
+            const QString path = index.data(FilesystemTreeModel::PathRole).toString();
+            if (expandedPaths.contains(path)) {
+                filesystemTree->expand(index);
+            }
+            if (!selectedPath.isEmpty() && path == selectedPath) {
+                filesystemTree->setCurrentIndex(index);
+                selectedFileExists = true;
+            }
+        });
+    if (selectedFileExists) {
+        viewFileContents(selectedPath);
+    } else {
+        clearPreview();
+    }
+}
+
+void FilesystemWidget::setBrowserPath(const QString &path)
+{
+    QString absolutePath = path;
+    if (!absolutePath.startsWith(QLatin1Char('/'))) {
+        absolutePath.prepend(QLatin1Char('/'));
+    }
+    absolutePath = QDir::cleanPath(absolutePath);
+    browserPathEdit->setText(absolutePath);
+    clearPreview();
+    treeModel->setRootPath(absolutePath);
+    const bool sourceDirectory = isSourceFile(absolutePath + QLatin1Char('/'));
+    createDirButton->setEnabled(!sourceDirectory);
+    createFileButton->setEnabled(!sourceDirectory);
+}
+
+bool FilesystemWidget::isSourceFile(const QString &path) const
+{
+    for (const auto &mount : currentMountpoints) {
+        const QString prefix = mount.path == QStringLiteral("/")
+                                   ? QStringLiteral("/cl/")
+                                   : mount.path + QStringLiteral("/cl/");
+        if (mount.plugin == QStringLiteral("r2") && path.startsWith(prefix)) {
+            return true;
+        }
+    }
+    return false;
+}
+
+void FilesystemWidget::showSourceFiles()
+{
+    refreshMountpoints();
+    QString mountPath;
+    QSet<QString> usedPaths;
+    for (const auto &mount : currentMountpoints) {
+        usedPaths.insert(mount.path);
+        if (mount.plugin == QStringLiteral("r2") && mountPath.isEmpty()) {
+            mountPath = mount.path;
+        }
+    }
+    if (mountPath.isEmpty()) {
+        mountPath = QStringLiteral("/r2");
+        for (int suffix = 1; usedPaths.contains(mountPath); ++suffix) {
+            mountPath = QStringLiteral("/r2_%1").arg(suffix);
+        }
+        const QByteArray pathBytes = mountPath.toUtf8();
+        RCoreLocked core = Core()->core();
+        if (!r_fs_mount(core->fs, "r2", pathBytes.constData(), 0)) {
+            previewStatus->setText(tr("Failed to mount the r2 filesystem."));
+            return;
+        }
+    }
+    refreshMountpoints();
+    setBrowserPath(mountPath);
+    bool hasSourceDirectory = false;
+    for (int row = 0; row < treeModel->rowCount(); ++row) {
+        hasSourceDirectory |= treeModel->index(row, 0).data().toString() == QStringLiteral("cl");
+    }
+    if (!hasSourceDirectory) {
+        previewStatus->setText(tr("This r2 filesystem does not provide a /cl source directory."));
+        return;
+    }
+    const QString sourcePath = QDir::cleanPath(mountPath + QStringLiteral("/cl"));
+    setBrowserPath(sourcePath);
+    if (treeModel->rowCount() == 0) {
+        previewStatus->setText(
+            tr("No source references are available. The binary needs source "
+               "line information and an r2 filesystem with /cl support."));
+    }
+}
+
+void FilesystemWidget::clearPreview()
+{
+    previewPath.clear();
+    sourceFunctions->clear();
+    sourceLines->clear();
+    fileContents->clear();
+    previewStatus->setText(tr("Select a file to preview it."));
+    previewTabs->setTabEnabled(0, false);
+    previewTabs->setTabEnabled(1, false);
+    previewTabs->setCurrentWidget(fileContents);
+}
+
+void FilesystemWidget::onTreeSelectionChanged(const QModelIndex &index)
+{
+    const QModelIndex nameIndex = index.sibling(index.row(), 0);
+    if (nameIndex.isValid()
+        && nameIndex.sibling(nameIndex.row(), 2).data().toString() == QStringLiteral("file")) {
+        viewFileContents(nameIndex.data(FilesystemTreeModel::PathRole).toString());
+    } else {
+        clearPreview();
+    }
+}
+
 void FilesystemWidget::onMountButtonClicked()
 {
     QString fsType = fsTypeCombo->currentText();
@@ -351,7 +603,7 @@ void FilesystemWidget::onMountButtonClicked()
     }
 
     refreshMountpoints();
-    treeModel->refresh();
+    setBrowserPath(path);
 }
 
 void FilesystemWidget::onUmountButtonClicked()
@@ -383,12 +635,13 @@ void FilesystemWidget::onUmountButtonClicked()
     }
 
     refreshMountpoints();
-    treeModel->refresh();
+    setBrowserPath(QStringLiteral("/"));
 }
 
 void FilesystemWidget::onCreateDirButtonClicked()
 {
     QModelIndex current = filesystemTree->currentIndex();
+    current = current.sibling(current.row(), 0);
     QString currentPath = "/";
     if (current.isValid()) {
         QString path = current.data(Qt::UserRole).toString();
@@ -416,6 +669,7 @@ void FilesystemWidget::onCreateDirButtonClicked()
 void FilesystemWidget::onCreateFileButtonClicked()
 {
     QModelIndex current = filesystemTree->currentIndex();
+    current = current.sibling(current.row(), 0);
     QString currentPath = "/";
     if (current.isValid()) {
         QString path = current.data(Qt::UserRole).toString();
@@ -447,11 +701,10 @@ void FilesystemWidget::onTreeItemDoubleClicked(const QModelIndex &index)
 
     QString type = index.sibling(index.row(), 2).data(Qt::DisplayRole).toString();
 
-    if (type == "file") {
-        QString path = index.data(Qt::UserRole).toString();
-        if (path.isEmpty()) {
-            path = index.data(Qt::DisplayRole).toString();
-        }
+    const QString path = index.sibling(index.row(), 0).data(Qt::UserRole).toString();
+    if (type == "directory") {
+        setBrowserPath(path);
+    } else if (type == "file") {
         viewFileContents(path);
     }
 }
@@ -466,7 +719,8 @@ void FilesystemWidget::onTreeExpanded(const QModelIndex &index)
         return;
 
     // Check if it has a dummy child
-    if (item->rowCount() == 1 && item->child(0)->text() == "Loading...") {
+    if (!item->data(FilesystemTreeModel::LoadedRole).toBool()) {
+        item->setData(true, FilesystemTreeModel::LoadedRole);
         // Remove dummy and load real children
         item->removeRow(0);
         QString path = item->data(Qt::UserRole).toString();
@@ -483,23 +737,94 @@ void FilesystemWidget::onTreeContextMenu(const QPoint &pos)
         return;
 
     QString type = index.sibling(index.row(), 2).data(Qt::DisplayRole).toString();
+    filesystemTree->setCurrentIndex(index.sibling(index.row(), 0));
 
     QMenu menu(this);
     if (type == "file") {
         menu.addAction(viewAction);
-        menu.addAction(deleteAction);
-        menu.addAction(mallocAction);
+        const QString path = index.sibling(index.row(), 0).data(Qt::UserRole).toString();
+        if (!isSourceFile(path)) {
+            menu.addAction(deleteAction);
+            menu.addAction(mallocAction);
+        }
     }
     menu.exec(filesystemTree->viewport()->mapToGlobal(pos));
 }
 
 void FilesystemWidget::viewFileContents(const QString &path)
 {
-    QString sanitizedPath = IaitoCore::sanitizeStringForCommand(path);
-    QString cmd = QString("mc %1").arg(sanitizedPath);
-    QString output = Core()->cmdRaw(cmd.toUtf8().constData());
-    if (!output.isEmpty()) {
-        QMessageBox::information(this, tr("File Contents"), output);
+    QWidget *previousTab = previewPath == path ? previewTabs->currentWidget() : nullptr;
+    clearPreview();
+    if (path.isEmpty()) {
+        return;
+    }
+    const bool sourceFile = isSourceFile(path);
+    const QByteArray pathBytes = path.toUtf8();
+    QByteArray contents;
+    bool truncated = false;
+    {
+        RCoreLocked core = Core()->core();
+        RFSFile *file = r_fs_open(core->fs, pathBytes.constData(), false);
+        if (!file) {
+            previewStatus->setText(tr("Cannot open %1").arg(path));
+            return;
+        }
+        // Virtual r2 files are already populated by open. Other plugins need a read.
+        const int previewLimit = 1024 * 1024;
+        const int length = int(qMin<quint64>(file->size, previewLimit));
+        int bytesRead = length;
+        if (!file->data && length > 0) {
+            bytesRead = r_fs_read(core->fs, file, 0, length);
+        }
+        if (file->data && bytesRead >= 0) {
+            const int available = int(qMin<quint64>(file->size, bytesRead));
+            contents = QByteArray(reinterpret_cast<const char *>(file->data), available);
+            truncated = file->size > quint64(available);
+        }
+        r_fs_close(core->fs, file);
+        r_fs_file_free(file);
+        if (bytesRead < 0) {
+            previewStatus->setText(tr("Cannot read %1").arg(path));
+            return;
+        }
+    }
+    previewPath = path;
+    const QString text = QString::fromUtf8(contents);
+    fileContents->setPlainText(text);
+    previewStatus->setText(truncated ? tr("%1 (preview truncated to 1 MiB)").arg(path) : path);
+    if (!sourceFile) {
+        return;
+    }
+
+    QSet<RVA> functions;
+    const auto references = SourceLineReference::parse(text);
+    {
+        RCoreLocked core = Core()->core();
+        for (const auto &reference : references) {
+            auto *line = new QTreeWidgetItem(
+                sourceLines,
+                {RAddressString(reference.address),
+                 QString::number(reference.line),
+                 reference.code});
+            line->setData(0, Qt::UserRole, QVariant::fromValue(reference.address));
+            RAnalFunction *function = r_anal_get_fcn_in(core->anal, reference.address, 0);
+            if (function && !functions.contains(function->addr)) {
+                functions.insert(function->addr);
+                auto *item = new QTreeWidgetItem(
+                    sourceFunctions,
+                    {QString::fromUtf8(function->name), RAddressString(function->addr)});
+                item->setData(0, Qt::UserRole, QVariant::fromValue(RVA(function->addr)));
+            }
+        }
+    }
+    previewTabs->setTabEnabled(0, true);
+    previewTabs->setTabEnabled(1, true);
+    previewTabs->setCurrentWidget(
+        previousTab ? previousTab : (functions.isEmpty() ? sourceLines : sourceFunctions));
+    sourceFunctions->resizeColumnToContents(0);
+    if (functions.isEmpty() && !references.isEmpty()) {
+        previewStatus->setText(
+            tr("%1 — no analyzed functions; click a source address to view code.").arg(path));
     }
 }
 

src/widgets/FilesystemWidget.h

@@ -14,10 +14,12 @@
 #include <QLineEdit>
 #include <QListWidget>
 #include <QMenu>
+#include <QPlainTextEdit>
 #include <QPushButton>
 #include <QSplitter>
 #include <QStandardItem>
 #include <QStandardItemModel>
+#include <QTabWidget>
 #include <QTreeView>
 #include <QTreeWidget>
 #include <QVBoxLayout>
@@ -42,7 +44,6 @@ struct FileInfo
     QString name;
     QString type; // 'f' for file, 'd' for directory
     quint64 size;
-    QString timestamp; // if available
 };
 
 class FilesystemTreeModel : public QStandardItemModel
@@ -55,10 +56,13 @@ public:
     void setRootPath(const QString &path);
     void refresh();
     void populateDirectory(QStandardItem *parentItem, const QString &path);
+    QString getRootPath() const { return rootPath; }
+
+    enum Roles { PathRole = Qt::UserRole, LoadedRole };
 
 private:
     QString rootPath;
-    QJsonDocument parseMdCommand(const QString &path);
+    QList<FileInfo> readDirectory(const QString &path);
 };
 
 class FilesystemWidget : public IaitoDockWidget
@@ -69,6 +73,9 @@ public:
     explicit FilesystemWidget(MainWindow *main);
     ~FilesystemWidget();
 
+public slots:
+    void showSourceFiles();
+
 private slots:
     void refreshMountpoints();
     void onMountButtonClicked();
@@ -78,6 +85,8 @@ private slots:
     void onTreeItemDoubleClicked(const QModelIndex &index);
     void onTreeContextMenu(const QPoint &pos);
     void onTreeExpanded(const QModelIndex &index);
+    void refresh();
+    void onTreeSelectionChanged(const QModelIndex &index);
 
 private:
     void setupUI();
@@ -91,8 +100,9 @@ private:
     void viewFileContents(const QString &path);
     void deleteFile(const QString &path);
     void loadIntoMalloc(const QString &path);
-
-    MainWindow *mainWindow;
+    void setBrowserPath(const QString &path);
+    bool isSourceFile(const QString &path) const;
+    void clearPreview();
 
     // Mountpoints section
     QGroupBox *mountpointsGroup;
@@ -110,6 +120,17 @@ private:
     FilesystemTreeModel *treeModel;
     QPushButton *createDirButton;
     QPushButton *createFileButton;
+    QLineEdit *browserPathEdit;
+
+    QGroupBox *previewGroup;
+    QLabel *previewStatus;
+    QTabWidget *previewTabs;
+    QTreeWidget *sourceFunctions;
+    QTreeWidget *sourceLines;
+    QPlainTextEdit *fileContents;
+    QString previewPath;
+    QList<MountpointInfo> currentMountpoints;
+    RefreshDeferrer *refreshDeferrer;
 
     // Context menu actions
     QAction *viewAction;

src/widgets/FlagsWidget.cpp

@@ -1,4 +1,5 @@
 #include "FlagsWidget.h"
+#include "NameListView.h"
 #include "common/Helpers.h"
 #include "common/ShortcutManager.h"
 #include "core/MainWindow.h"
@@ -161,33 +162,39 @@ FlagsWidget::FlagsWidget(MainWindow *main)
     flags_model = new FlagsModel(&flags, this);
     flags_proxy_model = new FlagsSortFilterProxyModel(flags_model, this);
     connect(
-        ui->filterLineEdit,
-        &QLineEdit::textChanged,
+        ui->quickFilterView,
+        &QuickFilterView::filterTextChanged,
         flags_proxy_model,
-        &QSortFilterProxyModel::setFilterWildcard);
+        &AddressableFilterProxyModel::setFilterWildcard);
     ui->flagsTreeView->setMainWindow(mainWindow);
     ui->flagsTreeView->setModel(static_cast<QAbstractItemModel *>(flags_proxy_model));
+    auto names = new NameListView(
+        ui->flagsTreeView,
+        ui->flagsTreeView->getItemContextMenu(),
+        flags_proxy_model,
+        FlagsModel::NAME,
+        objectName());
+    ui->quickFilterView->addActionButton(names->toggleAction());
     ui->flagsTreeView->sortByColumn(FlagsModel::OFFSET, Qt::AscendingOrder);
+    connect(ui->flagsTreeView, &QTreeView::clicked, this, &FlagsWidget::selectFlagRange);
+    connect(ui->flagsTreeView, &QTreeView::activated, this, &FlagsWidget::selectFlagRange);
 
     // Ctrl-F to move the focus to the Filter search box
     QShortcut *searchShortcut = ShortcutMgr()->registerShortcut("list.showFilter", this);
-    connect(searchShortcut, &QShortcut::activated, ui->filterLineEdit, [this]() {
-        ui->filterLineEdit->setFocus();
-    });
+    connect(searchShortcut, &QShortcut::activated, ui->quickFilterView, &QuickFilterView::showFilter);
     searchShortcut->setContext(Qt::WidgetWithChildrenShortcut);
 
     // Esc to clear the filter entry
     QShortcut *clearShortcut = ShortcutMgr()->registerShortcut("list.clearFilter", this);
-    connect(clearShortcut, &QShortcut::activated, [this] {
-        if (ui->filterLineEdit->text().isEmpty()) {
-            ui->flagsTreeView->setFocus();
-        } else {
-            ui->filterLineEdit->setText("");
-        }
-    });
+    connect(clearShortcut, &QShortcut::activated, [this] { ui->quickFilterView->clearFilter(); });
+    connect(
+        ui->quickFilterView,
+        &QuickFilterView::filterClosed,
+        ui->flagsTreeView,
+        static_cast<void (QWidget::*)()>(&QWidget::setFocus));
     clearShortcut->setContext(Qt::WidgetWithChildrenShortcut);
 
-    connect(ui->filterLineEdit, &QLineEdit::textChanged, this, [this] {
+    connect(ui->quickFilterView, &QuickFilterView::filterTextChanged, this, [this] {
         tree->showItemsNumber(flags_proxy_model->rowCount());
     });
 
@@ -204,6 +211,21 @@ FlagsWidget::FlagsWidget(MainWindow *main)
     menu->addSeparator();
     menu->addAction(ui->actionRename);
     menu->addAction(ui->actionDelete);
+    connect(menu, &QMenu::aboutToShow, this, [this] {
+        const bool hasFlag = ui->flagsTreeView->itemAddress(ui->flagsTreeView->currentIndex())
+                             != RVA_INVALID;
+        ui->actionRename->setEnabled(hasFlag);
+        ui->actionDelete->setEnabled(hasFlag);
+    });
+    connect(
+        ui->flagsTreeView->selectionModel(),
+        &QItemSelectionModel::currentChanged,
+        this,
+        [this](const QModelIndex &index) {
+            const bool hasFlag = ui->flagsTreeView->itemAddress(index) != RVA_INVALID;
+            ui->actionRename->setEnabled(hasFlag);
+            ui->actionDelete->setEnabled(hasFlag);
+        });
     addAction(ui->actionRename);
     addAction(ui->actionDelete);
 }
@@ -214,6 +236,20 @@ FlagsWidget::~FlagsWidget()
     delete flags_model;
 }
 
+void FlagsWidget::selectFlagRange(const QModelIndex &index)
+{
+    const QVariant description = index.data(FlagsModel::FlagDescriptionRole);
+    if (!description.isValid()) {
+        return;
+    }
+
+    const auto flag = description.value<FlagDescription>();
+    Core()->clearAddressRangeSelection();
+    if (flag.size > 0 && flag.size < 1024 && flag.size <= RVA_MAX - flag.offset) {
+        Core()->setAddressRangeSelection(flag.offset, flag.offset + flag.size - 1);
+    }
+}
+
 void FlagsWidget::on_flagspaceCombo_currentTextChanged(const QString &arg1)
 {
     Q_UNUSED(arg1);
@@ -224,7 +260,7 @@ void FlagsWidget::on_flagspaceCombo_currentTextChanged(const QString &arg1)
 void FlagsWidget::on_actionRename_triggered()
 {
     const QModelIndex index = ui->flagsTreeView->selectionModel()->currentIndex();
-    if (!index.isValid()) {
+    if (!index.isValid() || !index.data(FlagsModel::FlagDescriptionRole).isValid()) {
         return;
     }
     FlagDescription flag = index.data(FlagsModel::FlagDescriptionRole).value<FlagDescription>();
@@ -245,7 +281,7 @@ void FlagsWidget::on_actionRename_triggered()
 void FlagsWidget::on_actionDelete_triggered()
 {
     const QModelIndex index = ui->flagsTreeView->selectionModel()->currentIndex();
-    if (!index.isValid()) {
+    if (!index.isValid() || !index.data(FlagsModel::FlagDescriptionRole).isValid()) {
         return;
     }
     FlagDescription flag = index.data(FlagsModel::FlagDescriptionRole).value<FlagDescription>();

src/widgets/FlagsWidget.h

@@ -70,6 +70,7 @@ public:
     ~FlagsWidget();
 
 private slots:
+    void selectFlagRange(const QModelIndex &index);
     void on_flagspaceCombo_currentTextChanged(const QString &arg1);
 
     void on_actionRename_triggered();

src/widgets/FlagsWidget.ui

@@ -31,7 +31,7 @@
      <number>0</number>
     </property>
     <item>
-     <widget class="AddressableItemList&lt;&gt;" name="flagsTreeView">
+     <widget class="AddressableItemView" name="flagsTreeView">
       <property name="styleSheet">
        <string notr="true">IaitoTreeView::item
 {
@@ -71,14 +71,7 @@
        <number>0</number>
       </property>
       <item>
-       <widget class="QLineEdit" name="filterLineEdit">
-        <property name="text">
-         <string/>
-        </property>
-        <property name="placeholderText">
-         <string>Quick Filter</string>
-        </property>
-       </widget>
+       <widget class="QuickFilterView" name="quickFilterView" native="true"/>
       </item>
       <item>
        <widget class="QLabel" name="flagspaceLabel">
@@ -119,7 +112,13 @@
  </widget>
  <customwidgets>
   <customwidget>
-   <class>AddressableItemList&lt;&gt;</class>
+   <class>QuickFilterView</class>
+   <extends>QWidget</extends>
+   <header>widgets/QuickFilterView.h</header>
+   <container>1</container>
+  </customwidget>
+  <customwidget>
+   <class>AddressableItemView</class>
    <extends>QTreeView</extends>
    <header>widgets/AddressableItemList.h</header>
    <container>1</container>

src/widgets/FunctionsWidget.cpp

@@ -530,7 +530,7 @@ FunctionsWidget::FunctionsWidget(MainWindow *main)
     functionModel = new FunctionModel(
         &functions, &importAddresses, &mainAdress, false, default_font, highlight_font, this);
     functionProxyModel = new FunctionSortFilterProxyModel(functionModel, this);
-    setModels(functionProxyModel);
+    setModels(functionProxyModel, FunctionModel::NameColumn);
     ui->treeView->sortByColumn(FunctionModel::NameColumn, Qt::AscendingOrder);
 
     connect(Config(), &Configuration::fontsUpdated, this, [this]() {
@@ -593,6 +593,21 @@ FunctionsWidget::FunctionsWidget(MainWindow *main)
     itemConextMenu->setActionIcon(
         actionSetPinMenu, AddressableItemContextMenu::MenuIcon::Pin, QColor(103, 80, 164));
     itemConextMenu->setWholeFunction(true);
+    connect(itemConextMenu, &QMenu::aboutToShow, this, [this] {
+        const bool hasFunction = ui->treeView->itemAddress(ui->treeView->currentIndex())
+                                 != RVA_INVALID;
+        actionRename.setEnabled(hasFunction);
+        actionUndefine.setEnabled(hasFunction);
+        actionSetColorMenu->setEnabled(hasFunction);
+        actionSetPinMenu->setEnabled(hasFunction);
+    });
+    connect(
+        ui->treeView->selectionModel(),
+        &QItemSelectionModel::currentChanged,
+        this,
+        [this](const QModelIndex &index) {
+            actionRename.setEnabled(ui->treeView->itemAddress(index) != RVA_INVALID);
+        });
 
     addActions(itemConextMenu->actions());
 
@@ -685,7 +700,7 @@ void FunctionsWidget::onActionFunctionsRenameTriggered()
 {
     // Get selected item in functions tree view
     const QModelIndex index = ui->treeView->selectionModel()->currentIndex();
-    if (!index.isValid()) {
+    if (!index.isValid() || !index.data(FunctionModel::FunctionDescriptionRole).isValid()) {
         return;
     }
     FunctionDescription function
@@ -712,12 +727,7 @@ void FunctionsWidget::onActionFunctionsRenameTriggered()
 
 void FunctionsWidget::onActionFunctionsUndefineTriggered()
 {
-    const auto selection = ui->treeView->selectionModel()->selection().indexes();
-    std::vector<RVA> offsets;
-    offsets.reserve(selection.size());
-    for (const auto &index : selection) {
-        offsets.push_back(functionProxyModel->address(index));
-    }
+    const auto offsets = ui->treeView->selectedAddresses();
     for (RVA offset : offsets) {
         Core()->delFunction(offset);
     }
@@ -725,15 +735,7 @@ void FunctionsWidget::onActionFunctionsUndefineTriggered()
 
 void FunctionsWidget::onActionFunctionColorPicked(const QString &r2Color)
 {
-    const auto selection = ui->treeView->selectionModel()->selection().indexes();
-    std::vector<RVA> offsets;
-    offsets.reserve(selection.size());
-    for (const auto &index : selection) {
-        RVA off = functionProxyModel->address(index);
-        if (std::find(offsets.begin(), offsets.end(), off) == offsets.end()) {
-            offsets.push_back(off);
-        }
-    }
+    const auto offsets = ui->treeView->selectedAddresses();
     bool affectsView = false;
     RVA seek = Core()->getOffset();
     for (RVA offset : offsets) {
@@ -755,15 +757,7 @@ void FunctionsWidget::onActionFunctionColorPicked(const QString &r2Color)
 
 void FunctionsWidget::onActionFunctionPinPicked(const QString &emoji)
 {
-    const auto selection = ui->treeView->selectionModel()->selection().indexes();
-    std::vector<RVA> offsets;
-    offsets.reserve(selection.size());
-    for (const auto &index : selection) {
-        RVA off = functionProxyModel->address(index);
-        if (std::find(offsets.begin(), offsets.end(), off) == offsets.end()) {
-            offsets.push_back(off);
-        }
-    }
+    const auto offsets = ui->treeView->selectedAddresses();
     bool affectsView = false;
     RVA seek = Core()->getOffset();
     for (RVA offset : offsets) {

src/widgets/GlobalVariablesWidget.cpp

@@ -0,0 +1,273 @@
+#include "GlobalVariablesWidget.h"
+
+#include "common/Helpers.h"
+#include "ui_GlobalVariablesWidget.h"
+#include "ui_ListDockWidget.h"
+
+#include <QComboBox>
+#include <QDialog>
+#include <QDialogButtonBox>
+#include <QFormLayout>
+#include <QJsonArray>
+#include <QJsonObject>
+#include <QLabel>
+#include <QLineEdit>
+#include <QMessageBox>
+
+GlobalVariablesModel::GlobalVariablesModel(QObject *parent)
+    : AddressableItemModel<QAbstractListModel>(parent)
+{}
+
+int GlobalVariablesModel::rowCount(const QModelIndex &parent) const
+{
+    return parent.isValid() ? 0 : variables.size();
+}
+
+int GlobalVariablesModel::columnCount(const QModelIndex &) const
+{
+    return ColumnCount;
+}
+
+QVariant GlobalVariablesModel::data(const QModelIndex &index, int role) const
+{
+    if (!index.isValid() || index.row() < 0 || index.row() >= variables.size()) {
+        return {};
+    }
+    const auto &variable = variables.at(index.row());
+    if (role == DescriptionRole) {
+        return QVariant::fromValue(variable);
+    }
+    if (role != Qt::DisplayRole && role != Qt::EditRole) {
+        return {};
+    }
+    switch (index.column()) {
+    case AddressColumn:
+        return role == Qt::EditRole ? QVariant::fromValue(variable.address)
+                                    : QVariant(RAddressString(variable.address));
+    case NameColumn:
+        return variable.name;
+    case TypeColumn:
+        return variable.type;
+    case SizeColumn:
+        return role == Qt::EditRole ? QVariant::fromValue(variable.size)
+                                    : QVariant(RSizeString(variable.size));
+    case CommentColumn:
+        return Core()->getCommentAt(variable.address);
+    default:
+        return {};
+    }
+}
+
+QVariant GlobalVariablesModel::headerData(int section, Qt::Orientation orientation, int role) const
+{
+    if (orientation != Qt::Horizontal || role != Qt::DisplayRole) {
+        return {};
+    }
+    switch (section) {
+    case AddressColumn:
+        return tr("Address");
+    case NameColumn:
+        return tr("Name");
+    case TypeColumn:
+        return tr("Type");
+    case SizeColumn:
+        return tr("Size");
+    case CommentColumn:
+        return tr("Comment");
+    default:
+        return {};
+    }
+}
+
+RVA GlobalVariablesModel::address(const QModelIndex &index) const
+{
+    return index.isValid() && index.row() >= 0 && index.row() < variables.size()
+               ? variables.at(index.row()).address
+               : RVA_INVALID;
+}
+
+QString GlobalVariablesModel::name(const QModelIndex &index) const
+{
+    return index.isValid() && index.row() >= 0 && index.row() < variables.size()
+               ? variables.at(index.row()).name
+               : QString();
+}
+
+void GlobalVariablesModel::setVariables(QList<GlobalVariableDescription> variables)
+{
+    beginResetModel();
+    this->variables = std::move(variables);
+    endResetModel();
+}
+
+GlobalVariablesWidget::GlobalVariablesWidget(MainWindow *main)
+    : ListDockWidget(main)
+    , controls(new Ui::GlobalVariablesWidget)
+    , model(new GlobalVariablesModel(this))
+    , proxy(new AddressableFilterProxyModel(model, this))
+{
+    setObjectName(QStringLiteral("GlobalVariablesWidget"));
+    setWindowTitle(tr("Global Variables"));
+    proxy->setFilterCaseSensitivity(Qt::CaseInsensitive);
+    proxy->setFilterKeyColumn(-1);
+    proxy->setSortRole(Qt::EditRole);
+    setModels(proxy, GlobalVariablesModel::NameColumn, GlobalVariablesModel::TypeColumn);
+    ui->treeView->sortByColumn(GlobalVariablesModel::AddressColumn, Qt::AscendingOrder);
+
+    auto toolbar = new QWidget(this);
+    controls->setupUi(toolbar);
+    ui->verticalLayout->insertWidget(0, toolbar);
+    auto menu = ui->treeView->getItemContextMenu();
+    menu->addSeparator();
+    auto addAction = menu->addAction(tr("Register…"));
+    addAction->setToolTip(tr("Register a global variable"));
+    addAction->setObjectName(QStringLiteral("actionAddGlobalVariable"));
+    addAction->setProperty("addressIndependent", true);
+    editAction = menu->addAction(tr("Edit…"));
+    editAction->setToolTip(tr("Edit the global variable name and type"));
+    editAction->setObjectName(QStringLiteral("actionEditGlobalVariable"));
+    deleteAction = menu->addAction(tr("Delete"));
+    deleteAction->setToolTip(tr("Delete the global variable"));
+    deleteAction->setObjectName(QStringLiteral("actionDeleteGlobalVariable"));
+    auto refreshAction = menu->addAction(tr("Refresh"));
+    refreshAction->setObjectName(QStringLiteral("actionRefreshGlobalVariables"));
+    refreshAction->setProperty("addressIndependent", true);
+    controls->addButton->setDefaultAction(addAction);
+    controls->editButton->setDefaultAction(editAction);
+    controls->deleteButton->setDefaultAction(deleteAction);
+    controls->refreshButton->setDefaultAction(refreshAction);
+    editAction->setEnabled(false);
+    deleteAction->setEnabled(false);
+
+    connect(addAction, &QAction::triggered, this, [this]() { editVariable(true); });
+    connect(editAction, &QAction::triggered, this, [this]() { editVariable(false); });
+    connect(deleteAction, &QAction::triggered, this, &GlobalVariablesWidget::deleteVariable);
+    connect(refreshAction, &QAction::triggered, this, &GlobalVariablesWidget::refreshVariables);
+    const auto updateActions = [this]() {
+        const bool valid = currentVariable().address != RVA_INVALID;
+        editAction->setEnabled(valid);
+        deleteAction->setEnabled(valid);
+    };
+    connect(ui->treeView->selectionModel(), &QItemSelectionModel::currentChanged, this, updateActions);
+    connect(model, &QAbstractItemModel::modelReset, this, updateActions);
+
+    refreshDeferrer = createRefreshDeferrer([this]() { refreshVariables(); });
+    connect(Core(), &IaitoCore::flagsChanged, this, &GlobalVariablesWidget::refreshVariables);
+    connect(Core(), &IaitoCore::refreshAll, this, &GlobalVariablesWidget::refreshVariables);
+    connect(Core(), &IaitoCore::codeRebased, this, &GlobalVariablesWidget::refreshVariables);
+    connect(Core(), &IaitoCore::commentsChanged, this, [this]() {
+        qhelpers::emitColumnChanged(model, GlobalVariablesModel::CommentColumn);
+    });
+    connect(
+        this, &IaitoDockWidget::becameVisibleToUser, this, &GlobalVariablesWidget::refreshVariables);
+    refreshVariables();
+}
+
+GlobalVariablesWidget::~GlobalVariablesWidget()
+{
+    ui->treeView->setModel(static_cast<QAbstractItemModel *>(nullptr));
+}
+
+void GlobalVariablesWidget::refreshVariables()
+{
+    if (!refreshDeferrer->attemptRefresh(nullptr)) {
+        return;
+    }
+    model->setVariables(Core()->getAllGlobalVariables());
+    for (int column = 0; column < GlobalVariablesModel::ColumnCount; ++column) {
+        ui->treeView->resizeColumnToContents(column);
+    }
+}
+
+GlobalVariableDescription GlobalVariablesWidget::currentVariable() const
+{
+    return ui->treeView->currentIndex()
+        .data(GlobalVariablesModel::DescriptionRole)
+        .value<GlobalVariableDescription>();
+}
+
+void GlobalVariablesWidget::editVariable(bool create)
+{
+    const auto variable = currentVariable();
+    if (!create && variable.address == RVA_INVALID) {
+        return;
+    }
+    QDialog dialog(this);
+    dialog.setObjectName(QStringLiteral("globalVariableDialog"));
+    dialog.setWindowTitle(create ? tr("Register Global Variable") : tr("Edit Global Variable"));
+    auto layout = new QFormLayout(&dialog);
+    auto address
+        = new QLineEdit(RAddressString(create ? Core()->getOffset() : variable.address), &dialog);
+    address->setObjectName(QStringLiteral("globalVariableAddress"));
+    address->setReadOnly(!create);
+    address->setToolTip(tr("An address or radare2 expression, such as sym.counter or $$ + 8."));
+    auto name = new QLineEdit(create ? QString() : variable.name, &dialog);
+    name->setObjectName(QStringLiteral("globalVariableName"));
+    auto type = new QComboBox(&dialog);
+    type->setObjectName(QStringLiteral("globalVariableType"));
+    type->setEditable(true);
+    QStringList types;
+    for (const auto &description : Core()->getAllTypes()) {
+        types.append(description.type);
+    }
+    // Primitive types in current r2 are returned in the types member of tj.
+    const auto primitiveTypes = Core()->cmdj("tj").object()[QStringLiteral("types")].toArray();
+    for (const auto &value : primitiveTypes) {
+        const QString typeName = value.toObject()[QStringLiteral("type")].toString();
+        types.append(typeName);
+    }
+    types.removeDuplicates();
+    types.sort();
+    for (const auto &typeName : types) {
+        type->addItem(typeName, typeName);
+    }
+    type->setCurrentText(create ? QStringLiteral("int") : variable.type);
+    auto error = new QLabel(&dialog);
+    error->setObjectName(QStringLiteral("globalVariableError"));
+    error->setWordWrap(true);
+    error->hide();
+    auto buttons = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel, &dialog);
+    layout->addRow(tr("Address:"), address);
+    layout->addRow(tr("Name:"), name);
+    layout->addRow(tr("Type:"), type);
+    layout->addRow(error);
+    layout->addRow(buttons);
+    connect(buttons, &QDialogButtonBox::rejected, &dialog, &QDialog::reject);
+    connect(buttons, &QDialogButtonBox::accepted, &dialog, [&]() {
+        RVA at;
+        QString message;
+        if (!Core()->tryMath(address->text(), at) || at == RVA_INVALID) {
+            message = tr("Enter a valid address or radare2 expression.");
+        } else {
+            if (Core()->setGlobalVariable(
+                    at,
+                    name->text().trimmed(),
+                    type->currentText().trimmed(),
+                    create ? QString() : variable.name,
+                    &message)) {
+                dialog.accept();
+                return;
+            }
+        }
+        error->setText(message);
+        error->show();
+    });
+    name->setFocus();
+    name->selectAll();
+    dialog.exec();
+}
+
+void GlobalVariablesWidget::deleteVariable()
+{
+    const auto variable = currentVariable();
+    if (variable.address == RVA_INVALID) {
+        return;
+    }
+    if (!Core()->deleteGlobalVariable(variable.address, variable.name)) {
+        QMessageBox::warning(
+            this,
+            tr("Delete Global Variable"),
+            tr("Could not delete the global variable. Refresh the list and check that no other "
+               "global variable shares its address."));
+    }
+}

src/widgets/GlobalVariablesWidget.h

@@ -0,0 +1,56 @@
+#ifndef GLOBALVARIABLESWIDGET_H
+#define GLOBALVARIABLESWIDGET_H
+
+#include "ListDockWidget.h"
+
+#include <QAbstractListModel>
+
+namespace Ui {
+class GlobalVariablesWidget;
+}
+
+class GlobalVariablesModel : public AddressableItemModel<QAbstractListModel>
+{
+    Q_OBJECT
+
+public:
+    enum Column { AddressColumn, NameColumn, TypeColumn, SizeColumn, CommentColumn, ColumnCount };
+    enum Role { DescriptionRole = Qt::UserRole };
+
+    explicit GlobalVariablesModel(QObject *parent = nullptr);
+    int rowCount(const QModelIndex &parent = {}) const override;
+    int columnCount(const QModelIndex &parent = {}) const override;
+    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
+    QVariant headerData(
+        int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
+    RVA address(const QModelIndex &index) const override;
+    QString name(const QModelIndex &index) const override;
+    void setVariables(QList<GlobalVariableDescription> variables);
+
+private:
+    QList<GlobalVariableDescription> variables;
+};
+
+class GlobalVariablesWidget : public ListDockWidget
+{
+    Q_OBJECT
+
+public:
+    explicit GlobalVariablesWidget(MainWindow *main);
+    ~GlobalVariablesWidget() override;
+
+private:
+    std::unique_ptr<Ui::GlobalVariablesWidget> controls;
+    GlobalVariablesModel *model;
+    AddressableFilterProxyModel *proxy;
+    RefreshDeferrer *refreshDeferrer;
+    QAction *editAction;
+    QAction *deleteAction;
+
+    void refreshVariables();
+    void editVariable(bool create);
+    void deleteVariable();
+    GlobalVariableDescription currentVariable() const;
+};
+
+#endif // GLOBALVARIABLESWIDGET_H

src/widgets/GlobalVariablesWidget.ui

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>GlobalVariablesWidget</class>
+ <widget class="QWidget" name="GlobalVariablesWidget">
+  <layout class="QHBoxLayout" name="horizontalLayout">
+   <property name="leftMargin"><number>4</number></property>
+   <property name="topMargin"><number>4</number></property>
+   <property name="rightMargin"><number>4</number></property>
+   <property name="bottomMargin"><number>4</number></property>
+   <item><widget class="QToolButton" name="addButton"/></item>
+   <item><widget class="QToolButton" name="editButton"/></item>
+   <item><widget class="QToolButton" name="deleteButton"/></item>
+   <item>
+    <spacer name="horizontalSpacer">
+     <property name="orientation"><enum>Qt::Horizontal</enum></property>
+     <property name="sizeHint" stdset="0"><size><width>0</width><height>0</height></size></property>
+    </spacer>
+   </item>
+   <item><widget class="QToolButton" name="refreshButton"/></item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

src/widgets/GraphView.cpp

@@ -144,6 +144,7 @@ void GraphView::contextMenuEvent(QContextMenuEvent *event)
 void GraphView::computeGraphPlacement()
 {
     graphLayoutSystem->CalculateLayout(blocks, entry, width, height);
+    graphLayoutChanged();
     setCacheDirty();
     clampViewOffset();
     viewport()->update();
@@ -371,6 +372,10 @@ void GraphView::paint(QPainter &p, QPoint offset, QRect viewport, qreal scale, b
     p.setWindow(window);
     QRectF windowF(window.x(), window.y(), window.width(), window.height());
 
+    p.save();
+    drawBackground(p, interactive);
+    p.restore();
+
     for (auto &blockIt : blocks) {
         GraphBlock &block = blockIt.second;