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GUI: Dynamically "load" thumbnails during scroll or resize

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av-dx 2021-06-10 22:58:02 +05:30 committed by Eugene Sandulenko
parent 823474faaf
commit f09a05cbb4
2 changed files with 64 additions and 22 deletions
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81
gui/widget.cpp
View File

@ -1046,7 +1046,10 @@ void GridItemWidget::setActiveEntry(LauncherEntry &entry) {
void GridItemWidget::update() {
if ((!_activeEntry) && (!_attachedEntries.empty())) {
_activeEntry = _attachedEntries.begin();
_activeEntry = _attachedEntries.begin();
}
if (isVisible()) {
// warning("%s, %s - Entry", _activeEntry->key.c_str(), _activeEntry->description.c_str());
Common::String gameid = _activeEntry->domain->getVal("gameid");
Common::String engineid = _activeEntry->domain->getVal("engineid");
@ -1192,46 +1195,64 @@ void GridWidget::loadPlatformIcons() {
}
}
Common::Array<Common::String> GridWidget::visibleEntries() {
Common::Array<Common::String> thumbList;
Common::String pathPrefix("./icons/");
int startingEntry = 0;
int totalVisibleEntries = 0;
for (auto iter = _allEntries.begin(); iter != _allEntries.end(); ++iter) {
Common::String gameid = iter->domain->getVal("gameid");
Common::String engineid = iter->domain->getVal("engineid");
thumbList.push_back(pathPrefix + Common::String::format("%s-%s.png", engineid.c_str(), gameid.c_str()));
bool GridWidget::calcVisibleEntries() {
warning("calcingVisible entries");
bool needsReload = false;
int nFirstVisibleItem = 0;
int nItemsOnScreen = 0;
nFirstVisibleItem = _itemsPerRow * (-_scrollPos / _gridItemHeight);
nItemsOnScreen = ((_scrollWindowHeight / _gridItemHeight) + 1) * (_itemsPerRow);
if ((nFirstVisibleItem != _firstVisibleItem) || (nItemsOnScreen != _itemsOnScreen)) {
needsReload = true;
_firstVisibleItem = nFirstVisibleItem;
_itemsOnScreen = nItemsOnScreen;
_visibleEntries.clear();
for (int ind = _firstVisibleItem; ind < _firstVisibleItem + _itemsOnScreen; ++ind) {
LauncherEntry *iter = _allEntries.begin() + ind;
_visibleEntries.push_back(*iter);
}
}
return thumbList;
// warning("Visible entries : %d to %d", _firstVisibleItem, _itemsOnScreen);
return needsReload;
}
void GridWidget::reloadThumbnails() {
Graphics::ManagedSurface *surf = nullptr;
_loadedSurfaces.clear(true);
Common::Array<Common::String> titleList = visibleEntries();
for (Common::Array<Common::String>::iterator iter = titleList.begin(); iter != titleList.end(); ++iter) {
if (_loadedSurfaces.contains(*iter)) {
for (Common::Array<LauncherEntry>::iterator iter = _visibleEntries.begin(); iter != _visibleEntries.end(); ++iter) {
Common::String gameid = iter->domain->getVal("gameid");
Common::String engineid = iter->domain->getVal("engineid");
Common::String path = Common::String("./icons/")+Common::String::format("%s-%s.png", engineid.c_str(), gameid.c_str());
if (_loadedSurfaces.contains(path)) {
warning("Thumbnail already loaded, skipping...");
}
else {
surf = loadSurfaceFromFile(*iter);
_loadedSurfaces[*iter] = surf;
surf = loadSurfaceFromFile(path);
_loadedSurfaces[path] = surf;
}
}
}
Graphics::ManagedSurface * GridWidget::filenameToSurface(Common::String &name) {
Graphics::ManagedSurface *GridWidget::filenameToSurface(Common::String &name) {
Common::String path = Common::String("./icons/")+name;
auto list = visibleEntries();
for (auto l = list.begin(); l!=list.end(); ++l) {
if (*l == path) {
for (auto l = _visibleEntries.begin(); l!=_visibleEntries.end(); ++l) {
Common::String gameid = l->domain->getVal("gameid");
Common::String engineid = l->domain->getVal("engineid");
Common::String lPath = Common::String("./icons/")+Common::String::format("%s-%s.png", engineid.c_str(), gameid.c_str());
if (lPath == path) {
return _loadedSurfaces[path];
}
}
// warning("This image is not visible");
return nullptr;
}
Graphics::ManagedSurface * GridWidget::platformToSurface(Platform platformCode) {
Graphics::ManagedSurface *GridWidget::platformToSurface(Platform platformCode) {
if ((platformCode == kPlatformUnknown) || (platformCode < 0 || platformCode >= _platformIcons.size())) {
warning("Unknown Platform");
return nullptr;
@ -1248,6 +1269,7 @@ void GridWidget::handleMouseWheel(int x, int y, int direction) {
_scrollPos = -(_innerHeight - _scrollWindowHeight);
int row = 0, col = 0;
int k = 0;
for (Common::Array<GridItemWidget *>::iterator iter = _gridItems.begin(); iter != _gridItems.end(); ++iter) {
k = row * _itemsPerRow + col;
(*iter)->setPos(50 + col * (kThumbnailWidth + 50), _scrollPos + 50 + row * (kThumbnailHeight + 80));
@ -1264,6 +1286,12 @@ void GridWidget::handleMouseWheel(int x, int y, int direction) {
}
++k;
}
if (calcVisibleEntries()) {
reloadThumbnails();
updateGrid();
}
markAsDirty();
}
@ -1285,6 +1313,10 @@ void GridWidget::reflowLayout() {
int row = 0;
int col = 0;
if (calcVisibleEntries()) {
reloadThumbnails();
}
Common::HashMap<Common::String, GridItemWidget *> entryById;
for (Common::Array<LauncherEntry>::iterator i = _allEntries.begin(); i != _allEntries.end(); ++i) {
@ -1318,6 +1350,13 @@ void GridWidget::reflowLayout() {
markAsDirty();
}
void GridWidget::updateGrid() {
for (auto i = _gridItems.begin(); i != _gridItems.end(); ++i) {
(*i)->update();
}
}
#pragma mark -
OptionsContainerWidget::OptionsContainerWidget(GuiObject *boss, const Common::String &name, const Common::String &dialogLayout,

5
gui/widget.h
View File

@ -502,9 +502,12 @@ private:
int _scrollPos;
int _itemsPerRow;
int _firstVisibleItem;
int _itemsOnScreen;
bool _titlesVisible;
public:
enum Platform {
@ -520,8 +523,8 @@ public:
Graphics::ManagedSurface * filenameToSurface(Common::String &name);
Graphics::ManagedSurface * platformToSurface(Platform platformCode);
Common::Array<Common::String> visibleEntries(void);
bool calcVisibleEntries(void);
void setEntryList(Common::Array<LauncherEntry> *list);
void destroyItems();
void loadPlatformIcons();