scummvm/gui/ThemeEngine.cpp
Johannes Schickel 5b03ba04d7 GRAPHICS: Allow client code to specify TTF render mode.
This allows clients to use the default FreeType2 render mode instead of light.
We really only use light as default because that's what looks best with the
font we use in our GUI right now (which is the same reason why formerly light
was always used in non-monochrome mode).
2014-06-09 01:04:47 +02:00

1829 lines
52 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "common/system.h"
#include "common/config-manager.h"
#include "common/file.h"
#include "common/fs.h"
#include "common/unzip.h"
#include "common/tokenizer.h"
#include "common/translation.h"
#include "graphics/cursorman.h"
#include "graphics/fontman.h"
#include "graphics/surface.h"
#include "graphics/VectorRenderer.h"
#include "graphics/fonts/bdf.h"
#include "graphics/fonts/ttf.h"
#include "image/bmp.h"
#include "gui/widget.h"
#include "gui/ThemeEngine.h"
#include "gui/ThemeEval.h"
#include "gui/ThemeParser.h"
namespace GUI {
const char * const ThemeEngine::kImageLogo = "logo.bmp";
const char * const ThemeEngine::kImageLogoSmall = "logo_small.bmp";
const char * const ThemeEngine::kImageSearch = "search.bmp";
const char * const ThemeEngine::kImageEraser = "eraser.bmp";
const char * const ThemeEngine::kImageDelbtn = "delbtn.bmp";
const char * const ThemeEngine::kImageList = "list.bmp";
const char * const ThemeEngine::kImageGrid = "grid.bmp";
const char * const ThemeEngine::kImageStopbtn = "stopbtn.bmp";
const char * const ThemeEngine::kImageEditbtn = "editbtn.bmp";
const char * const ThemeEngine::kImageSwitchModebtn = "switchbtn.bmp";
const char * const ThemeEngine::kImageFastReplaybtn = "fastreplay.bmp";
const char * const ThemeEngine::kImageStopSmallbtn = "stopbtn_small.bmp";
const char * const ThemeEngine::kImageEditSmallbtn = "editbtn_small.bmp";
const char * const ThemeEngine::kImageSwitchModeSmallbtn = "switchbtn_small.bmp";
const char * const ThemeEngine::kImageFastReplaySmallbtn = "fastreplay_small.bmp";
struct TextDrawData {
const Graphics::Font *_fontPtr;
};
struct TextColorData {
int r, g, b;
};
struct WidgetDrawData {
/** List of all the steps needed to draw this widget */
Common::List<Graphics::DrawStep> _steps;
TextData _textDataId;
TextColor _textColorId;
Graphics::TextAlign _textAlignH;
GUI::ThemeEngine::TextAlignVertical _textAlignV;
/** Extra space that the widget occupies when it's drawn.
E.g. when taking into account rounded corners, drop shadows, etc
Used when restoring the widget background */
uint16 _backgroundOffset;
bool _buffer;
/**
* Calculates the background threshold offset of a given DrawData item.
* After fully loading all DrawSteps of a DrawData item, this function must be
* called in order to calculate if such draw steps would be drawn outside of
* the actual widget drawing zone (e.g. shadows). If this is the case, a constant
* value will be added when restoring the background of the widget.
*/
void calcBackgroundOffset();
};
class ThemeItem {
public:
ThemeItem(ThemeEngine *engine, const Common::Rect &area) :
_engine(engine), _area(area) {}
virtual ~ThemeItem() {}
virtual void drawSelf(bool doDraw, bool doRestore) = 0;
protected:
ThemeEngine *_engine;
Common::Rect _area;
};
class ThemeItemDrawData : public ThemeItem {
public:
ThemeItemDrawData(ThemeEngine *engine, const WidgetDrawData *data, const Common::Rect &area, uint32 dynData) :
ThemeItem(engine, area), _dynamicData(dynData), _data(data) {}
void drawSelf(bool draw, bool restore);
protected:
uint32 _dynamicData;
const WidgetDrawData *_data;
};
class ThemeItemTextData : public ThemeItem {
public:
ThemeItemTextData(ThemeEngine *engine, const TextDrawData *data, const TextColorData *color, const Common::Rect &area, const Common::Rect &textDrawableArea,
const Common::String &text, Graphics::TextAlign alignH, GUI::ThemeEngine::TextAlignVertical alignV,
bool ellipsis, bool restoreBg, int deltaX) :
ThemeItem(engine, area), _data(data), _color(color), _text(text), _alignH(alignH), _alignV(alignV),
_ellipsis(ellipsis), _restoreBg(restoreBg), _deltax(deltaX), _textDrawableArea(textDrawableArea) {}
void drawSelf(bool draw, bool restore);
protected:
Common::Rect _textDrawableArea;
const TextDrawData *_data;
const TextColorData *_color;
Common::String _text;
Graphics::TextAlign _alignH;
GUI::ThemeEngine::TextAlignVertical _alignV;
bool _ellipsis;
bool _restoreBg;
int _deltax;
};
class ThemeItemBitmap : public ThemeItem {
public:
ThemeItemBitmap(ThemeEngine *engine, const Common::Rect &area, const Graphics::Surface *bitmap, bool alpha) :
ThemeItem(engine, area), _bitmap(bitmap), _alpha(alpha) {}
void drawSelf(bool draw, bool restore);
protected:
const Graphics::Surface *_bitmap;
bool _alpha;
};
/**********************************************************
* Data definitions for theme engine elements
*********************************************************/
struct DrawDataInfo {
DrawData id; ///< The actual ID of the DrawData item.
const char *name; ///< The name of the DrawData item as it appears in the Theme Description files
bool buffer; ///< Sets whether this item is buffered on the backbuffer or drawn directly to the screen.
DrawData parent; ///< Parent DrawData item, for items that overlay. E.g. kButtonIdle -> kButtonHover
};
/**
* Default values for each DrawData item.
*/
static const DrawDataInfo kDrawDataDefaults[] = {
{kDDMainDialogBackground, "mainmenu_bg", true, kDDNone},
{kDDSpecialColorBackground, "special_bg", true, kDDNone},
{kDDPlainColorBackground, "plain_bg", true, kDDNone},
{kDDTooltipBackground, "tooltip_bg", true, kDDNone},
{kDDDefaultBackground, "default_bg", true, kDDNone},
{kDDTextSelectionBackground, "text_selection", false, kDDNone},
{kDDTextSelectionFocusBackground, "text_selection_focus", false, kDDNone},
{kDDWidgetBackgroundDefault, "widget_default", true, kDDNone},
{kDDWidgetBackgroundSmall, "widget_small", true, kDDNone},
{kDDWidgetBackgroundEditText, "widget_textedit", true, kDDNone},
{kDDWidgetBackgroundSlider, "widget_slider", true, kDDNone},
{kDDButtonIdle, "button_idle", true, kDDWidgetBackgroundSlider},
{kDDButtonHover, "button_hover", false, kDDButtonIdle},
{kDDButtonDisabled, "button_disabled", true, kDDNone},
{kDDButtonPressed, "button_pressed", false, kDDButtonIdle},
{kDDSliderFull, "slider_full", false, kDDNone},
{kDDSliderHover, "slider_hover", false, kDDNone},
{kDDSliderDisabled, "slider_disabled", false, kDDNone},
{kDDCheckboxDefault, "checkbox_default", true, kDDNone},
{kDDCheckboxDisabled, "checkbox_disabled", true, kDDNone},
{kDDCheckboxSelected, "checkbox_selected", false, kDDCheckboxDefault},
{kDDRadiobuttonDefault, "radiobutton_default", true, kDDNone},
{kDDRadiobuttonDisabled, "radiobutton_disabled", true, kDDNone},
{kDDRadiobuttonSelected, "radiobutton_selected", false, kDDRadiobuttonDefault},
{kDDTabActive, "tab_active", false, kDDTabInactive},
{kDDTabInactive, "tab_inactive", true, kDDNone},
{kDDTabBackground, "tab_background", true, kDDNone},
{kDDScrollbarBase, "scrollbar_base", true, kDDNone},
{kDDScrollbarButtonIdle, "scrollbar_button_idle", true, kDDNone},
{kDDScrollbarButtonHover, "scrollbar_button_hover", false, kDDScrollbarButtonIdle},
{kDDScrollbarHandleIdle, "scrollbar_handle_idle", false, kDDNone},
{kDDScrollbarHandleHover, "scrollbar_handle_hover", false, kDDScrollbarBase},
{kDDPopUpIdle, "popup_idle", true, kDDNone},
{kDDPopUpHover, "popup_hover", false, kDDPopUpIdle},
{kDDPopUpDisabled, "popup_disabled", true, kDDNone},
{kDDCaret, "caret", false, kDDNone},
{kDDSeparator, "separator", true, kDDNone},
};
/**********************************************************
* ThemeItem functions for drawing queues.
*********************************************************/
void ThemeItemDrawData::drawSelf(bool draw, bool restore) {
Common::Rect extendedRect = _area;
extendedRect.grow(_engine->kDirtyRectangleThreshold + _data->_backgroundOffset);
if (restore)
_engine->restoreBackground(extendedRect);
if (draw) {
Common::List<Graphics::DrawStep>::const_iterator step;
for (step = _data->_steps.begin(); step != _data->_steps.end(); ++step)
_engine->renderer()->drawStep(_area, *step, _dynamicData);
}
_engine->addDirtyRect(extendedRect);
}
void ThemeItemTextData::drawSelf(bool draw, bool restore) {
if (_restoreBg || restore)
_engine->restoreBackground(_area);
if (draw) {
_engine->renderer()->setFgColor(_color->r, _color->g, _color->b);
_engine->renderer()->drawString(_data->_fontPtr, _text, _area, _alignH, _alignV, _deltax, _ellipsis, _textDrawableArea);
}
_engine->addDirtyRect(_area);
}
void ThemeItemBitmap::drawSelf(bool draw, bool restore) {
if (restore)
_engine->restoreBackground(_area);
if (draw) {
if (_alpha)
_engine->renderer()->blitAlphaBitmap(_bitmap, _area);
else
_engine->renderer()->blitSubSurface(_bitmap, _area);
}
_engine->addDirtyRect(_area);
}
/**********************************************************
* ThemeEngine class
*********************************************************/
ThemeEngine::ThemeEngine(Common::String id, GraphicsMode mode) :
_system(0), _vectorRenderer(0),
_buffering(false), _bytesPerPixel(0), _graphicsMode(kGfxDisabled),
_font(0), _initOk(false), _themeOk(false), _enabled(false), _themeFiles(),
_cursor(0) {
_system = g_system;
_parser = new ThemeParser(this);
_themeEval = new GUI::ThemeEval();
_useCursor = false;
for (int i = 0; i < kDrawDataMAX; ++i) {
_widgets[i] = 0;
}
for (int i = 0; i < kTextDataMAX; ++i) {
_texts[i] = 0;
}
for (int i = 0; i < kTextColorMAX; ++i) {
_textColors[i] = 0;
}
// We currently allow two different ways of theme selection in our config file:
// 1) Via full path
// 2) Via a basename, which will need to be translated into a full path
// This function assures we have a correct path to pass to the ThemeEngine
// constructor.
_themeFile = getThemeFile(id);
// We will use getThemeId to retrive the theme id from the given filename
// here, since the user could have passed a fixed filename as 'id'.
_themeId = getThemeId(_themeFile);
_graphicsMode = mode;
_themeArchive = 0;
_initOk = false;
// We prefer files in archive bundles over the common search paths.
_themeFiles.add("default", &SearchMan, 0, false);
}
ThemeEngine::~ThemeEngine() {
delete _vectorRenderer;
_vectorRenderer = 0;
_screen.free();
_backBuffer.free();
unloadTheme();
// Release all graphics surfaces
for (ImagesMap::iterator i = _bitmaps.begin(); i != _bitmaps.end(); ++i) {
Graphics::Surface *surf = i->_value;
if (surf) {
surf->free();
delete surf;
}
}
_bitmaps.clear();
delete _parser;
delete _themeEval;
delete[] _cursor;
}
/**********************************************************
* Rendering mode management
*********************************************************/
const ThemeEngine::Renderer ThemeEngine::_rendererModes[] = {
{ _s("Disabled GFX"), _sc("Disabled GFX", "lowres"), "none", kGfxDisabled },
{ _s("Standard Renderer"), _s("Standard"), "normal", kGfxStandard },
#ifndef DISABLE_FANCY_THEMES
{ _s("Antialiased Renderer"), _s("Antialiased"), "antialias", kGfxAntialias }
#endif
};
const uint ThemeEngine::_rendererModesSize = ARRAYSIZE(ThemeEngine::_rendererModes);
const ThemeEngine::GraphicsMode ThemeEngine::_defaultRendererMode =
#ifndef DISABLE_FANCY_THEMES
ThemeEngine::kGfxAntialias;
#else
ThemeEngine::kGfxStandard;
#endif
ThemeEngine::GraphicsMode ThemeEngine::findMode(const Common::String &cfg) {
for (uint i = 0; i < _rendererModesSize; ++i) {
if (cfg.equalsIgnoreCase(_rendererModes[i].cfg))
return _rendererModes[i].mode;
}
return kGfxDisabled;
}
const char *ThemeEngine::findModeConfigName(GraphicsMode mode) {
for (uint i = 0; i < _rendererModesSize; ++i) {
if (mode == _rendererModes[i].mode)
return _rendererModes[i].cfg;
}
return findModeConfigName(kGfxDisabled);
}
/**********************************************************
* Theme setup/initialization
*********************************************************/
bool ThemeEngine::init() {
// reset everything and reload the graphics
_initOk = false;
_overlayFormat = _system->getOverlayFormat();
setGraphicsMode(_graphicsMode);
if (_screen.getPixels() && _backBuffer.getPixels()) {
_initOk = true;
}
// TODO: Instead of hard coding the font here, it should be possible
// to specify the fonts to be used for each resolution in the theme XML.
if (_screen.w >= 400 && _screen.h >= 300) {
_font = FontMan.getFontByUsage(Graphics::FontManager::kBigGUIFont);
} else {
_font = FontMan.getFontByUsage(Graphics::FontManager::kGUIFont);
}
// Try to create a Common::Archive with the files of the theme.
if (!_themeArchive && !_themeFile.empty()) {
Common::FSNode node(_themeFile);
if (node.isDirectory()) {
_themeArchive = new Common::FSDirectory(node);
} else if (_themeFile.matchString("*.zip", true)) {
// TODO: Also use "node" directly?
// Look for the zip file via SearchMan
Common::ArchiveMemberPtr member = SearchMan.getMember(_themeFile);
if (member) {
_themeArchive = Common::makeZipArchive(member->createReadStream());
if (!_themeArchive) {
warning("Failed to open Zip archive '%s'.", member->getDisplayName().c_str());
}
} else {
_themeArchive = Common::makeZipArchive(node);
if (!_themeArchive) {
warning("Failed to open Zip archive '%s'.", node.getPath().c_str());
}
}
}
if (_themeArchive)
_themeFiles.add("theme_archive", _themeArchive, 1, true);
}
// Load the theme
// We pass the theme file here by default, so the user will
// have a descriptive error message. The only exception will
// be the builtin theme which has no filename.
loadTheme(_themeFile.empty() ? _themeId : _themeFile);
return ready();
}
void ThemeEngine::clearAll() {
if (_initOk) {
_system->clearOverlay();
_system->grabOverlay(_screen.getPixels(), _screen.pitch);
}
}
void ThemeEngine::refresh() {
// Flush all bitmaps if the overlay pixel format changed.
if (_overlayFormat != _system->getOverlayFormat()) {
for (ImagesMap::iterator i = _bitmaps.begin(); i != _bitmaps.end(); ++i) {
Graphics::Surface *surf = i->_value;
if (surf) {
surf->free();
delete surf;
}
}
_bitmaps.clear();
}
init();
if (_enabled) {
_system->showOverlay();
if (_useCursor) {
CursorMan.replaceCursorPalette(_cursorPal, 0, _cursorPalSize);
CursorMan.replaceCursor(_cursor, _cursorWidth, _cursorHeight, _cursorHotspotX, _cursorHotspotY, 255, true);
}
}
}
void ThemeEngine::enable() {
if (_enabled)
return;
showCursor();
_system->showOverlay();
clearAll();
_enabled = true;
}
void ThemeEngine::disable() {
if (!_enabled)
return;
_system->hideOverlay();
hideCursor();
_enabled = false;
}
void ThemeEngine::setGraphicsMode(GraphicsMode mode) {
switch (mode) {
case kGfxStandard:
#ifndef DISABLE_FANCY_THEMES
case kGfxAntialias:
#endif
if (g_system->getOverlayFormat().bytesPerPixel == 4) {
_bytesPerPixel = sizeof(uint32);
break;
} else if (g_system->getOverlayFormat().bytesPerPixel == 2) {
_bytesPerPixel = sizeof(uint16);
break;
}
default:
error("Invalid graphics mode");
}
uint32 width = _system->getOverlayWidth();
uint32 height = _system->getOverlayHeight();
_backBuffer.free();
_backBuffer.create(width, height, _overlayFormat);
_screen.free();
_screen.create(width, height, _overlayFormat);
delete _vectorRenderer;
_vectorRenderer = Graphics::createRenderer(mode);
_vectorRenderer->setSurface(&_screen);
// Since we reinitialized our screen surfaces we know nothing has been
// drawn so far. Sometimes we still end up with dirty screen bits in the
// list. Clearing it avoids invalid overlay writes when the backend
// resizes the overlay.
_dirtyScreen.clear();
}
void WidgetDrawData::calcBackgroundOffset() {
uint maxShadow = 0;
for (Common::List<Graphics::DrawStep>::const_iterator step = _steps.begin();
step != _steps.end(); ++step) {
if ((step->autoWidth || step->autoHeight) && step->shadow > maxShadow)
maxShadow = step->shadow;
if (step->drawingCall == &Graphics::VectorRenderer::drawCallback_BEVELSQ && step->bevel > maxShadow)
maxShadow = step->bevel;
}
_backgroundOffset = maxShadow;
}
void ThemeEngine::restoreBackground(Common::Rect r) {
r.clip(_screen.w, _screen.h);
_vectorRenderer->blitSurface(&_backBuffer, r);
}
/**********************************************************
* Theme elements management
*********************************************************/
void ThemeEngine::addDrawStep(const Common::String &drawDataId, const Graphics::DrawStep &step) {
DrawData id = parseDrawDataId(drawDataId);
assert(_widgets[id] != 0);
_widgets[id]->_steps.push_back(step);
}
bool ThemeEngine::addTextData(const Common::String &drawDataId, TextData textId, TextColor colorId, Graphics::TextAlign alignH, TextAlignVertical alignV) {
DrawData id = parseDrawDataId(drawDataId);
if (id == -1 || textId == -1 || colorId == kTextColorMAX || !_widgets[id])
return false;
_widgets[id]->_textDataId = textId;
_widgets[id]->_textColorId = colorId;
_widgets[id]->_textAlignH = alignH;
_widgets[id]->_textAlignV = alignV;
return true;
}
bool ThemeEngine::addFont(TextData textId, const Common::String &file, const Common::String &scalableFile, const int pointsize) {
if (textId == -1)
return false;
if (_texts[textId] != 0)
delete _texts[textId];
_texts[textId] = new TextDrawData;
if (file == "default") {
_texts[textId]->_fontPtr = _font;
} else {
Common::String localized = FontMan.genLocalizedFontFilename(file);
const Common::String charset
#ifdef USE_TRANSLATION
(TransMan.getCurrentCharset())
#endif
;
// Try localized fonts
_texts[textId]->_fontPtr = loadFont(localized, scalableFile, charset, pointsize, textId == kTextDataDefault);
if (!_texts[textId]->_fontPtr) {
// Try standard fonts
_texts[textId]->_fontPtr = loadFont(file, scalableFile, Common::String(), pointsize, textId == kTextDataDefault);
if (!_texts[textId]->_fontPtr)
error("Couldn't load font '%s'/'%s'", file.c_str(), scalableFile.c_str());
#ifdef USE_TRANSLATION
TransMan.setLanguage("C");
#endif
warning("Failed to load localized font '%s'. Using non-localized font and default GUI language instead", localized.c_str());
}
}
return true;
}
bool ThemeEngine::addTextColor(TextColor colorId, int r, int g, int b) {
if (colorId >= kTextColorMAX)
return false;
if (_textColors[colorId] != 0)
delete _textColors[colorId];
_textColors[colorId] = new TextColorData;
_textColors[colorId]->r = r;
_textColors[colorId]->g = g;
_textColors[colorId]->b = b;
return true;
}
bool ThemeEngine::addBitmap(const Common::String &filename) {
// Nothing has to be done if the bitmap already has been loaded.
Graphics::Surface *surf = _bitmaps[filename];
if (surf)
return true;
// If not, try to load the bitmap via the BitmapDecoder class.
Image::BitmapDecoder bitmapDecoder;
const Graphics::Surface *srcSurface = 0;
Common::ArchiveMemberList members;
_themeFiles.listMatchingMembers(members, filename);
for (Common::ArchiveMemberList::const_iterator i = members.begin(), end = members.end(); i != end; ++i) {
Common::SeekableReadStream *stream = (*i)->createReadStream();
if (stream) {
bitmapDecoder.loadStream(*stream);
srcSurface = bitmapDecoder.getSurface();
delete stream;
if (srcSurface)
break;
}
}
if (srcSurface && srcSurface->format.bytesPerPixel != 1)
surf = srcSurface->convertTo(_overlayFormat);
// Store the surface into our hashmap (attention, may store NULL entries!)
_bitmaps[filename] = surf;
return surf != 0;
}
bool ThemeEngine::addDrawData(const Common::String &data, bool cached) {
DrawData id = parseDrawDataId(data);
if (id == -1)
return false;
if (_widgets[id] != 0)
delete _widgets[id];
_widgets[id] = new WidgetDrawData;
_widgets[id]->_buffer = kDrawDataDefaults[id].buffer;
_widgets[id]->_textDataId = kTextDataNone;
return true;
}
/**********************************************************
* Theme XML loading
*********************************************************/
void ThemeEngine::loadTheme(const Common::String &themeId) {
unloadTheme();
debug(6, "Loading theme %s", themeId.c_str());
if (themeId == "builtin") {
_themeOk = loadDefaultXML();
} else {
// Load the archive containing image and XML data
_themeOk = loadThemeXML(themeId);
}
if (!_themeOk) {
warning("Failed to load theme '%s'", themeId.c_str());
return;
}
for (int i = 0; i < kDrawDataMAX; ++i) {
if (_widgets[i] == 0) {
warning("Missing data asset: '%s'", kDrawDataDefaults[i].name);
} else {
_widgets[i]->calcBackgroundOffset();
}
}
}
void ThemeEngine::unloadTheme() {
if (!_themeOk)
return;
for (int i = 0; i < kDrawDataMAX; ++i) {
delete _widgets[i];
_widgets[i] = 0;
}
for (int i = 0; i < kTextDataMAX; ++i) {
delete _texts[i];
_texts[i] = 0;
}
for (int i = 0; i < kTextColorMAX; ++i) {
delete _textColors[i];
_textColors[i] = 0;
}
_themeEval->reset();
_themeOk = false;
}
bool ThemeEngine::loadDefaultXML() {
// The default XML theme is included on runtime from a pregenerated
// file inside the themes directory.
// Use the Python script "makedeftheme.py" to convert a normal XML theme
// into the "default.inc" file, which is ready to be included in the code.
#ifndef DISABLE_GUI_BUILTIN_THEME
const char *defaultXML =
#include "themes/default.inc"
;
if (!_parser->loadBuffer((const byte *)defaultXML, strlen(defaultXML)))
return false;
_themeName = "ScummVM Classic Theme (Builtin Version)";
_themeId = "builtin";
_themeFile.clear();
bool result = _parser->parse();
_parser->close();
return result;
#else
warning("The built-in theme is not enabled in the current build. Please load an external theme");
return false;
#endif
}
bool ThemeEngine::loadThemeXML(const Common::String &themeId) {
assert(_parser);
assert(_themeArchive);
_themeName.clear();
//
// Now that we have a Common::Archive, verify that it contains a valid THEMERC File
//
Common::File themercFile;
themercFile.open("THEMERC", *_themeArchive);
if (!themercFile.isOpen()) {
warning("Theme '%s' contains no 'THEMERC' file.", themeId.c_str());
return false;
}
Common::String stxHeader = themercFile.readLine();
if (!themeConfigParseHeader(stxHeader, _themeName) || _themeName.empty()) {
warning("Corrupted 'THEMERC' file in theme '%s'", themeId.c_str());
return false;
}
Common::ArchiveMemberList members;
if (0 == _themeArchive->listMatchingMembers(members, "*.stx")) {
warning("Found no STX files for theme '%s'.", themeId.c_str());
return false;
}
//
// Loop over all STX files, load and parse them
//
for (Common::ArchiveMemberList::iterator i = members.begin(); i != members.end(); ++i) {
assert((*i)->getName().hasSuffix(".stx"));
if (_parser->loadStream((*i)->createReadStream()) == false) {
warning("Failed to load STX file '%s'", (*i)->getDisplayName().c_str());
_parser->close();
return false;
}
if (_parser->parse() == false) {
warning("Failed to parse STX file '%s'", (*i)->getDisplayName().c_str());
_parser->close();
return false;
}
_parser->close();
}
assert(!_themeName.empty());
return true;
}
/**********************************************************
* Drawing Queue management
*********************************************************/
void ThemeEngine::queueDD(DrawData type, const Common::Rect &r, uint32 dynamic, bool restore) {
if (_widgets[type] == 0)
return;
Common::Rect area = r;
area.clip(_screen.w, _screen.h);
ThemeItemDrawData *q = new ThemeItemDrawData(this, _widgets[type], area, dynamic);
if (_buffering) {
if (_widgets[type]->_buffer) {
_bufferQueue.push_back(q);
} else {
if (kDrawDataDefaults[type].parent != kDDNone && kDrawDataDefaults[type].parent != type)
queueDD(kDrawDataDefaults[type].parent, r);
_screenQueue.push_back(q);
}
} else {
q->drawSelf(!_widgets[type]->_buffer, restore || _widgets[type]->_buffer);
delete q;
}
}
void ThemeEngine::queueDDText(TextData type, TextColor color, const Common::Rect &r, const Common::String &text, bool restoreBg,
bool ellipsis, Graphics::TextAlign alignH, TextAlignVertical alignV, int deltax, const Common::Rect &drawableTextArea) {
if (_texts[type] == 0)
return;
Common::Rect area = r;
area.clip(_screen.w, _screen.h);
ThemeItemTextData *q = new ThemeItemTextData(this, _texts[type], _textColors[color], area, drawableTextArea, text, alignH, alignV, ellipsis, restoreBg, deltax);
if (_buffering) {
_screenQueue.push_back(q);
} else {
q->drawSelf(true, false);
delete q;
}
}
void ThemeEngine::queueBitmap(const Graphics::Surface *bitmap, const Common::Rect &r, bool alpha) {
Common::Rect area = r;
area.clip(_screen.w, _screen.h);
ThemeItemBitmap *q = new ThemeItemBitmap(this, area, bitmap, alpha);
if (_buffering) {
_screenQueue.push_back(q);
} else {
q->drawSelf(true, false);
delete q;
}
}
/**********************************************************
* Widget drawing functions
*********************************************************/
void ThemeEngine::drawButton(const Common::Rect &r, const Common::String &str, WidgetStateInfo state, uint16 hints) {
if (!ready())
return;
DrawData dd = kDDButtonIdle;
if (state == kStateEnabled)
dd = kDDButtonIdle;
else if (state == kStateHighlight)
dd = kDDButtonHover;
else if (state == kStateDisabled)
dd = kDDButtonDisabled;
else if (state == kStatePressed)
dd = kDDButtonPressed;
queueDD(dd, r, 0, hints & WIDGET_CLEARBG);
queueDDText(getTextData(dd), getTextColor(dd), r, str, false, true, _widgets[dd]->_textAlignH, _widgets[dd]->_textAlignV);
}
void ThemeEngine::drawLineSeparator(const Common::Rect &r, WidgetStateInfo state) {
if (!ready())
return;
queueDD(kDDSeparator, r);
}
void ThemeEngine::drawCheckbox(const Common::Rect &r, const Common::String &str, bool checked, WidgetStateInfo state) {
if (!ready())
return;
Common::Rect r2 = r;
DrawData dd = kDDCheckboxDefault;
if (checked)
dd = kDDCheckboxSelected;
if (state == kStateDisabled)
dd = kDDCheckboxDisabled;
const int checkBoxSize = MIN((int)r.height(), getFontHeight());
r2.bottom = r2.top + checkBoxSize;
r2.right = r2.left + checkBoxSize;
queueDD(dd, r2);
r2.left = r2.right + checkBoxSize;
r2.right = r.right;
queueDDText(getTextData(dd), getTextColor(dd), r2, str, true, false, _widgets[kDDCheckboxDefault]->_textAlignH, _widgets[dd]->_textAlignV);
}
void ThemeEngine::drawRadiobutton(const Common::Rect &r, const Common::String &str, bool checked, WidgetStateInfo state) {
if (!ready())
return;
Common::Rect r2 = r;
DrawData dd = kDDRadiobuttonDefault;
if (checked)
dd = kDDRadiobuttonSelected;
if (state == kStateDisabled)
dd = kDDRadiobuttonDisabled;
const int checkBoxSize = MIN((int)r.height(), getFontHeight());
r2.bottom = r2.top + checkBoxSize;
r2.right = r2.left + checkBoxSize;
queueDD(dd, r2);
r2.left = r2.right + checkBoxSize;
r2.right = r.right;
queueDDText(getTextData(dd), getTextColor(dd), r2, str, true, false, _widgets[kDDRadiobuttonDefault]->_textAlignH, _widgets[dd]->_textAlignV);
}
void ThemeEngine::drawSlider(const Common::Rect &r, int width, WidgetStateInfo state) {
if (!ready())
return;
DrawData dd = kDDSliderFull;
if (state == kStateHighlight)
dd = kDDSliderHover;
else if (state == kStateDisabled)
dd = kDDSliderDisabled;
Common::Rect r2 = r;
r2.setWidth(MIN((int16)width, r.width()));
// r2.top++; r2.bottom--; r2.left++; r2.right--;
drawWidgetBackground(r, 0, kWidgetBackgroundSlider, kStateEnabled);
queueDD(dd, r2);
}
void ThemeEngine::drawScrollbar(const Common::Rect &r, int sliderY, int sliderHeight, ScrollbarState scrollState, WidgetStateInfo state) {
if (!ready())
return;
queueDD(kDDScrollbarBase, r);
Common::Rect r2 = r;
const int buttonExtra = (r.width() * 120) / 100;
r2.bottom = r2.top + buttonExtra;
queueDD(scrollState == kScrollbarStateUp ? kDDScrollbarButtonHover : kDDScrollbarButtonIdle, r2, Graphics::VectorRenderer::kTriangleUp);
r2.translate(0, r.height() - r2.height());
queueDD(scrollState == kScrollbarStateDown ? kDDScrollbarButtonHover : kDDScrollbarButtonIdle, r2, Graphics::VectorRenderer::kTriangleDown);
r2 = r;
r2.left += 1;
r2.right -= 1;
r2.top += sliderY;
r2.bottom = r2.top + sliderHeight;
r2.top += r.width() / 5;
r2.bottom -= r.width() / 5;
queueDD(scrollState == kScrollbarStateSlider ? kDDScrollbarHandleHover : kDDScrollbarHandleIdle, r2);
}
void ThemeEngine::drawDialogBackground(const Common::Rect &r, DialogBackground bgtype, WidgetStateInfo state) {
if (!ready())
return;
switch (bgtype) {
case kDialogBackgroundMain:
queueDD(kDDMainDialogBackground, r);
break;
case kDialogBackgroundSpecial:
queueDD(kDDSpecialColorBackground, r);
break;
case kDialogBackgroundPlain:
queueDD(kDDPlainColorBackground, r);
break;
case kDialogBackgroundTooltip:
queueDD(kDDTooltipBackground, r);
break;
case kDialogBackgroundDefault:
queueDD(kDDDefaultBackground, r);
break;
}
}
void ThemeEngine::drawCaret(const Common::Rect &r, bool erase, WidgetStateInfo state) {
if (!ready())
return;
if (erase) {
restoreBackground(r);
addDirtyRect(r);
} else
queueDD(kDDCaret, r);
}
void ThemeEngine::drawPopUpWidget(const Common::Rect &r, const Common::String &sel, int deltax, WidgetStateInfo state, Graphics::TextAlign align) {
if (!ready())
return;
DrawData dd = kDDPopUpIdle;
if (state == kStateEnabled)
dd = kDDPopUpIdle;
else if (state == kStateHighlight)
dd = kDDPopUpHover;
else if (state == kStateDisabled)
dd = kDDPopUpDisabled;
queueDD(dd, r);
if (!sel.empty()) {
Common::Rect text(r.left + 3, r.top + 1, r.right - 10, r.bottom);
queueDDText(getTextData(dd), getTextColor(dd), text, sel, true, false, _widgets[dd]->_textAlignH, _widgets[dd]->_textAlignV, deltax);
}
}
void ThemeEngine::drawSurface(const Common::Rect &r, const Graphics::Surface &surface, WidgetStateInfo state, int alpha, bool themeTrans) {
if (!ready())
return;
queueBitmap(&surface, r, themeTrans);
}
void ThemeEngine::drawWidgetBackground(const Common::Rect &r, uint16 hints, WidgetBackground background, WidgetStateInfo state) {
if (!ready())
return;
switch (background) {
case kWidgetBackgroundBorderSmall:
queueDD(kDDWidgetBackgroundSmall, r);
break;
case kWidgetBackgroundEditText:
queueDD(kDDWidgetBackgroundEditText, r);
break;
case kWidgetBackgroundSlider:
queueDD(kDDWidgetBackgroundSlider, r);
break;
default:
queueDD(kDDWidgetBackgroundDefault, r);
break;
}
}
void ThemeEngine::drawTab(const Common::Rect &r, int tabHeight, int tabWidth, const Common::Array<Common::String> &tabs, int active, uint16 hints, int titleVPad, WidgetStateInfo state) {
if (!ready())
return;
queueDD(kDDTabBackground, Common::Rect(r.left, r.top, r.right, r.top + tabHeight));
for (int i = 0; i < (int)tabs.size(); ++i) {
if (i == active)
continue;
if (r.left + i * tabWidth > r.right || r.left + (i + 1) * tabWidth > r.right)
continue;
Common::Rect tabRect(r.left + i * tabWidth, r.top, r.left + (i + 1) * tabWidth, r.top + tabHeight);
queueDD(kDDTabInactive, tabRect);
queueDDText(getTextData(kDDTabInactive), getTextColor(kDDTabInactive), tabRect, tabs[i], false, false, _widgets[kDDTabInactive]->_textAlignH, _widgets[kDDTabInactive]->_textAlignV);
}
if (active >= 0 &&
(r.left + active * tabWidth < r.right) && (r.left + (active + 1) * tabWidth < r.right)) {
Common::Rect tabRect(r.left + active * tabWidth, r.top, r.left + (active + 1) * tabWidth, r.top + tabHeight);
const uint16 tabLeft = active * tabWidth;
const uint16 tabRight = MAX(r.right - tabRect.right, 0);
queueDD(kDDTabActive, tabRect, (tabLeft << 16) | (tabRight & 0xFFFF));
queueDDText(getTextData(kDDTabActive), getTextColor(kDDTabActive), tabRect, tabs[active], false, false, _widgets[kDDTabActive]->_textAlignH, _widgets[kDDTabActive]->_textAlignV);
}
}
void ThemeEngine::drawText(const Common::Rect &r, const Common::String &str, WidgetStateInfo state, Graphics::TextAlign align, TextInversionState inverted, int deltax, bool useEllipsis, FontStyle font, FontColor color, bool restore, const Common::Rect &drawableTextArea) {
if (!ready())
return;
TextColor colorId = kTextColorMAX;
switch (color) {
case kFontColorNormal:
if (inverted) {
colorId = kTextColorNormalInverted;
} else {
switch (state) {
case kStateDisabled:
colorId = kTextColorNormalDisabled;
break;
case kStateHighlight:
colorId = kTextColorNormalHover;
break;
case kStateEnabled:
case kStatePressed:
colorId = kTextColorNormal;
break;
}
}
break;
case kFontColorAlternate:
if (inverted) {
colorId = kTextColorAlternativeInverted;
} else {
switch (state) {
case kStateDisabled:
colorId = kTextColorAlternativeDisabled;
break;
case kStateHighlight:
colorId = kTextColorAlternativeHover;
break;
case kStateEnabled:
case kStatePressed:
colorId = kTextColorAlternative;
break;
}
}
break;
default:
return;
}
TextData textId = fontStyleToData(font);
switch (inverted) {
case kTextInversion:
queueDD(kDDTextSelectionBackground, r);
restore = false;
break;
case kTextInversionFocus:
queueDD(kDDTextSelectionFocusBackground, r);
restore = false;
break;
default:
break;
}
queueDDText(textId, colorId, r, str, restore, useEllipsis, align, kTextAlignVCenter, deltax, drawableTextArea);
}
void ThemeEngine::drawChar(const Common::Rect &r, byte ch, const Graphics::Font *font, WidgetStateInfo state, FontColor color) {
if (!ready())
return;
Common::Rect charArea = r;
charArea.clip(_screen.w, _screen.h);
uint32 rgbColor = _overlayFormat.RGBToColor(_textColors[color]->r, _textColors[color]->g, _textColors[color]->b);
restoreBackground(charArea);
font->drawChar(&_screen, ch, charArea.left, charArea.top, rgbColor);
addDirtyRect(charArea);
}
void ThemeEngine::debugWidgetPosition(const char *name, const Common::Rect &r) {
_font->drawString(&_screen, name, r.left, r.top, r.width(), 0xFFFF, Graphics::kTextAlignRight, 0, true);
_screen.hLine(r.left, r.top, r.right, 0xFFFF);
_screen.hLine(r.left, r.bottom, r.right, 0xFFFF);
_screen.vLine(r.left, r.top, r.bottom, 0xFFFF);
_screen.vLine(r.right, r.top, r.bottom, 0xFFFF);
}
/**********************************************************
* Screen/overlay management
*********************************************************/
void ThemeEngine::updateScreen(bool render) {
if (!_bufferQueue.empty()) {
_vectorRenderer->setSurface(&_backBuffer);
for (Common::List<ThemeItem *>::iterator q = _bufferQueue.begin(); q != _bufferQueue.end(); ++q) {
(*q)->drawSelf(true, false);
delete *q;
}
_vectorRenderer->setSurface(&_screen);
memcpy(_screen.getPixels(), _backBuffer.getPixels(), _screen.pitch * _screen.h);
_bufferQueue.clear();
}
if (!_screenQueue.empty()) {
_vectorRenderer->disableShadows();
for (Common::List<ThemeItem *>::iterator q = _screenQueue.begin(); q != _screenQueue.end(); ++q) {
(*q)->drawSelf(true, false);
delete *q;
}
_vectorRenderer->enableShadows();
_screenQueue.clear();
}
if (render)
renderDirtyScreen();
}
void ThemeEngine::addDirtyRect(Common::Rect r) {
// Clip the rect to screen coords
r.clip(_screen.w, _screen.h);
// If it is empty after clipping, we are done
if (r.isEmpty())
return;
// Check if the new rectangle is contained within another in the list
Common::List<Common::Rect>::iterator it;
for (it = _dirtyScreen.begin(); it != _dirtyScreen.end();) {
// If we find a rectangle which fully contains the new one,
// we can abort the search.
if (it->contains(r))
return;
// Conversely, if we find rectangles which are contained in
// the new one, we can remove them
if (r.contains(*it))
it = _dirtyScreen.erase(it);
else
++it;
}
// If we got here, we can safely add r to the list of dirty rects.
_dirtyScreen.push_back(r);
}
void ThemeEngine::renderDirtyScreen() {
if (_dirtyScreen.empty())
return;
Common::List<Common::Rect>::iterator i;
for (i = _dirtyScreen.begin(); i != _dirtyScreen.end(); ++i) {
_vectorRenderer->copyFrame(_system, *i);
}
_dirtyScreen.clear();
}
void ThemeEngine::openDialog(bool doBuffer, ShadingStyle style) {
if (doBuffer)
_buffering = true;
if (style != kShadingNone) {
_vectorRenderer->applyScreenShading(style);
addDirtyRect(Common::Rect(0, 0, _screen.w, _screen.h));
}
memcpy(_backBuffer.getPixels(), _screen.getPixels(), _screen.pitch * _screen.h);
_vectorRenderer->setSurface(&_screen);
}
bool ThemeEngine::createCursor(const Common::String &filename, int hotspotX, int hotspotY) {
if (!_system->hasFeature(OSystem::kFeatureCursorPalette))
return true;
// Try to locate the specified file among all loaded bitmaps
const Graphics::Surface *cursor = _bitmaps[filename];
if (!cursor)
return false;
#ifdef USE_RGB_COLOR
_cursorFormat.bytesPerPixel = 1;
_cursorFormat.rLoss = _cursorFormat.gLoss = _cursorFormat.bLoss = _cursorFormat.aLoss = 8;
_cursorFormat.rShift = _cursorFormat.gShift = _cursorFormat.bShift = _cursorFormat.aShift = 0;
#endif
// Set up the cursor parameters
_cursorHotspotX = hotspotX;
_cursorHotspotY = hotspotY;
_cursorWidth = cursor->w;
_cursorHeight = cursor->h;
// Allocate a new buffer for the cursor
delete[] _cursor;
_cursor = new byte[_cursorWidth * _cursorHeight];
assert(_cursor);
memset(_cursor, 0xFF, sizeof(byte) * _cursorWidth * _cursorHeight);
// the transparent color is 0xFF00FF
const uint32 colTransparent = _overlayFormat.RGBToColor(0xFF, 0, 0xFF);
// Now, scan the bitmap. We have to convert it from 16 bit color mode
// to 8 bit mode, and have to create a suitable palette on the fly.
uint colorsFound = 0;
Common::HashMap<int, int> colorToIndex;
const byte *src = (const byte *)cursor->getPixels();
for (uint y = 0; y < _cursorHeight; ++y) {
for (uint x = 0; x < _cursorWidth; ++x) {
uint32 color = colTransparent;
byte r, g, b;
if (cursor->format.bytesPerPixel == 2) {
color = READ_UINT16(src);
} else if (cursor->format.bytesPerPixel == 4) {
color = READ_UINT32(src);
}
src += cursor->format.bytesPerPixel;
// Skip transparency
if (color == colTransparent)
continue;
cursor->format.colorToRGB(color, r, g, b);
const int col = (r << 16) | (g << 8) | b;
// If there is no entry yet for this color in the palette: Add one
if (!colorToIndex.contains(col)) {
if (colorsFound >= MAX_CURS_COLORS) {
warning("Cursor contains too many colors (%d, but only %d are allowed)", colorsFound, MAX_CURS_COLORS);
return false;
}
const int index = colorsFound++;
colorToIndex[col] = index;
_cursorPal[index * 3 + 0] = r;
_cursorPal[index * 3 + 1] = g;
_cursorPal[index * 3 + 2] = b;
}
// Copy pixel from the 16 bit source surface to the 8bit target surface
const int index = colorToIndex[col];
_cursor[y * _cursorWidth + x] = index;
}
}
_useCursor = true;
_cursorPalSize = colorsFound;
return true;
}
/**********************************************************
* Legacy GUI::Theme support functions
*********************************************************/
const Graphics::Font *ThemeEngine::getFont(FontStyle font) const {
return _texts[fontStyleToData(font)]->_fontPtr;
}
int ThemeEngine::getFontHeight(FontStyle font) const {
return ready() ? _texts[fontStyleToData(font)]->_fontPtr->getFontHeight() : 0;
}
int ThemeEngine::getStringWidth(const Common::String &str, FontStyle font) const {
return ready() ? _texts[fontStyleToData(font)]->_fontPtr->getStringWidth(str) : 0;
}
int ThemeEngine::getCharWidth(byte c, FontStyle font) const {
return ready() ? _texts[fontStyleToData(font)]->_fontPtr->getCharWidth(c) : 0;
}
int ThemeEngine::getKerningOffset(byte left, byte right, FontStyle font) const {
return ready() ? _texts[fontStyleToData(font)]->_fontPtr->getKerningOffset(left, right) : 0;
}
TextData ThemeEngine::getTextData(DrawData ddId) const {
return _widgets[ddId] ? (TextData)_widgets[ddId]->_textDataId : kTextDataNone;
}
TextColor ThemeEngine::getTextColor(DrawData ddId) const {
return _widgets[ddId] ? _widgets[ddId]->_textColorId : kTextColorMAX;
}
DrawData ThemeEngine::parseDrawDataId(const Common::String &name) const {
for (int i = 0; i < kDrawDataMAX; ++i)
if (name.compareToIgnoreCase(kDrawDataDefaults[i].name) == 0)
return kDrawDataDefaults[i].id;
return kDDNone;
}
/**********************************************************
* External data loading
*********************************************************/
const Graphics::Font *ThemeEngine::loadScalableFont(const Common::String &filename, const Common::String &charset, const int pointsize, Common::String &name) {
#ifdef USE_FREETYPE2
name = Common::String::format("%s-%s@%d", filename.c_str(), charset.c_str(), pointsize);
// Try already loaded fonts.
const Graphics::Font *font = FontMan.getFontByName(name);
if (font)
return font;
Common::ArchiveMemberList members;
_themeFiles.listMatchingMembers(members, filename);
for (Common::ArchiveMemberList::const_iterator i = members.begin(), end = members.end(); i != end; ++i) {
Common::SeekableReadStream *stream = (*i)->createReadStream();
if (stream) {
font = Graphics::loadTTFFont(*stream, pointsize, 0, Graphics::kTTFRenderModeLight,
#ifdef USE_TRANSLATION
TransMan.getCharsetMapping()
#else
0
#endif
);
delete stream;
if (font)
return font;
}
}
#endif
return 0;
}
const Graphics::Font *ThemeEngine::loadFont(const Common::String &filename, Common::String &name) {
name = filename;
// Try already loaded fonts.
const Graphics::Font *font = FontMan.getFontByName(name);
if (font)
return font;
Common::ArchiveMemberList members;
const Common::String cacheFilename(genCacheFilename(filename));
_themeFiles.listMatchingMembers(members, cacheFilename);
_themeFiles.listMatchingMembers(members, filename);
for (Common::ArchiveMemberList::const_iterator i = members.begin(), end = members.end(); i != end; ++i) {
Common::SeekableReadStream *stream = (*i)->createReadStream();
if (stream) {
if ((*i)->getName().equalsIgnoreCase(cacheFilename)) {
font = Graphics::BdfFont::loadFromCache(*stream);
} else {
font = Graphics::BdfFont::loadFont(*stream);
if (font && !cacheFilename.empty()) {
if (!Graphics::BdfFont::cacheFontData(*(const Graphics::BdfFont *)font, cacheFilename))
warning("Couldn't create cache file for font '%s'", filename.c_str());
}
}
delete stream;
if (font)
return font;
}
}
return 0;
}
const Graphics::Font *ThemeEngine::loadFont(const Common::String &filename, const Common::String &scalableFilename, const Common::String &charset, const int pointsize, const bool makeLocalizedFont) {
Common::String fontName;
const Graphics::Font *font = 0;
// Prefer scalable fonts over non-scalable fonts
font = loadScalableFont(scalableFilename, charset, pointsize, fontName);
if (!font)
font = loadFont(filename, fontName);
// If the font is successfully loaded store it in the font manager.
if (font) {
FontMan.assignFontToName(fontName, font);
// If this font should be the new default localized font, we set it up
// for that.
if (makeLocalizedFont)
FontMan.setLocalizedFont(fontName);
}
return font;
}
Common::String ThemeEngine::genCacheFilename(const Common::String &filename) const {
Common::String cacheName(filename);
for (int i = cacheName.size() - 1; i >= 0; --i) {
if (cacheName[i] == '.') {
while ((uint)i < cacheName.size() - 1) {
cacheName.deleteLastChar();
}
cacheName += "fcc";
return cacheName;
}
}
return Common::String();
}
/**********************************************************
* Static Theme XML functions
*********************************************************/
bool ThemeEngine::themeConfigParseHeader(Common::String header, Common::String &themeName) {
// Check that header is not corrupted
if ((byte)header[0] > 127) {
warning("Corrupted theme header found");
return false;
}
header.trim();
if (header.empty())
return false;
if (header[0] != '[' || header.lastChar() != ']')
return false;
header.deleteChar(0);
header.deleteLastChar();
Common::StringTokenizer tok(header, ":");
if (tok.nextToken() != SCUMMVM_THEME_VERSION_STR)
return false;
themeName = tok.nextToken();
Common::String author = tok.nextToken();
return tok.empty();
}
bool ThemeEngine::themeConfigUsable(const Common::ArchiveMember &member, Common::String &themeName) {
Common::File stream;
bool foundHeader = false;
if (member.getName().matchString("*.zip", true)) {
Common::Archive *zipArchive = Common::makeZipArchive(member.createReadStream());
if (zipArchive && zipArchive->hasFile("THEMERC")) {
stream.open("THEMERC", *zipArchive);
}
delete zipArchive;
}
if (stream.isOpen()) {
Common::String stxHeader = stream.readLine();
foundHeader = themeConfigParseHeader(stxHeader, themeName);
}
return foundHeader;
}
bool ThemeEngine::themeConfigUsable(const Common::FSNode &node, Common::String &themeName) {
Common::File stream;
bool foundHeader = false;
if (node.getName().matchString("*.zip", true) && !node.isDirectory()) {
Common::Archive *zipArchive = Common::makeZipArchive(node);
if (zipArchive && zipArchive->hasFile("THEMERC")) {
// Open THEMERC from the ZIP file.
stream.open("THEMERC", *zipArchive);
}
// Delete the ZIP archive again. Note: This only works because
// stream.open() only uses ZipArchive::createReadStreamForMember,
// and that in turn happens to read all the data for a given
// archive member into a memory block. So there will be no dangling
// reference to zipArchive anywhere. This could change if we
// ever modify ZipArchive::createReadStreamForMember.
delete zipArchive;
} else if (node.isDirectory()) {
Common::FSNode headerfile = node.getChild("THEMERC");
if (!headerfile.exists() || !headerfile.isReadable() || headerfile.isDirectory())
return false;
stream.open(headerfile);
}
if (stream.isOpen()) {
Common::String stxHeader = stream.readLine();
foundHeader = themeConfigParseHeader(stxHeader, themeName);
}
return foundHeader;
}
namespace {
struct TDComparator {
const Common::String _id;
TDComparator(const Common::String &id) : _id(id) {}
bool operator()(const ThemeEngine::ThemeDescriptor &r) {
return _id == r.id;
}
};
} // end of anonymous namespace
void ThemeEngine::listUsableThemes(Common::List<ThemeDescriptor> &list) {
#ifndef DISABLE_GUI_BUILTIN_THEME
ThemeDescriptor th;
th.name = "ScummVM Classic Theme (Builtin Version)";
th.id = "builtin";
th.filename.clear();
list.push_back(th);
#endif
if (ConfMan.hasKey("themepath"))
listUsableThemes(Common::FSNode(ConfMan.get("themepath")), list);
listUsableThemes(SearchMan, list);
// Now we need to strip all duplicates
// TODO: It might not be the best idea to strip duplicates. The user might
// have different versions of a specific theme in his paths, thus this code
// might show him the wrong version. The problem is we have no ways of checking
// a theme version currently. Also since we want to avoid saving the full path
// in the config file we can not do any better currently.
Common::List<ThemeDescriptor> output;
for (Common::List<ThemeDescriptor>::const_iterator i = list.begin(); i != list.end(); ++i) {
if (Common::find_if(output.begin(), output.end(), TDComparator(i->id)) == output.end())
output.push_back(*i);
}
list = output;
output.clear();
}
void ThemeEngine::listUsableThemes(Common::Archive &archive, Common::List<ThemeDescriptor> &list) {
ThemeDescriptor td;
Common::ArchiveMemberList fileList;
archive.listMatchingMembers(fileList, "*.zip");
for (Common::ArchiveMemberList::iterator i = fileList.begin();
i != fileList.end(); ++i) {
td.name.clear();
if (themeConfigUsable(**i, td.name)) {
td.filename = (*i)->getName();
td.id = (*i)->getDisplayName();
// If the name of the node object also contains
// the ".zip" suffix, we will strip it.
if (td.id.matchString("*.zip", true)) {
for (int j = 0; j < 4; ++j)
td.id.deleteLastChar();
}
list.push_back(td);
}
}
fileList.clear();
}
void ThemeEngine::listUsableThemes(const Common::FSNode &node, Common::List<ThemeDescriptor> &list, int depth) {
if (!node.exists() || !node.isReadable() || !node.isDirectory())
return;
ThemeDescriptor td;
// Check whether we point to a valid theme directory.
if (themeConfigUsable(node, td.name)) {
td.filename = node.getPath();
td.id = node.getName();
list.push_back(td);
// A theme directory should never contain any other themes
// thus we just return to the caller here.
return;
}
Common::FSList fileList;
// Check all files. We need this to find all themes inside ZIP archives.
if (!node.getChildren(fileList, Common::FSNode::kListFilesOnly))
return;
for (Common::FSList::iterator i = fileList.begin(); i != fileList.end(); ++i) {
// We will only process zip files for now
if (!i->getPath().matchString("*.zip", true))
continue;
td.name.clear();
if (themeConfigUsable(*i, td.name)) {
td.filename = i->getPath();
td.id = i->getName();
// If the name of the node object also contains
// the ".zip" suffix, we will strip it.
if (td.id.matchString("*.zip", true)) {
for (int j = 0; j < 4; ++j)
td.id.deleteLastChar();
}
list.push_back(td);
}
}
fileList.clear();
// Check if we exceeded the given recursion depth
if (depth - 1 == -1)
return;
// As next step we will search all subdirectories
if (!node.getChildren(fileList, Common::FSNode::kListDirectoriesOnly))
return;
for (Common::FSList::iterator i = fileList.begin(); i != fileList.end(); ++i)
listUsableThemes(*i, list, depth == -1 ? - 1 : depth - 1);
}
Common::String ThemeEngine::getThemeFile(const Common::String &id) {
// FIXME: Actually "default" rather sounds like it should use
// our default theme which would mean "scummmodern" instead
// of the builtin one.
if (id.equalsIgnoreCase("default"))
return Common::String();
// For our builtin theme we don't have to do anything for now too
if (id.equalsIgnoreCase("builtin"))
return Common::String();
Common::FSNode node(id);
// If the given id is a full path we'll just use it
if (node.exists() && (node.isDirectory() || node.getName().matchString("*.zip", true)))
return id;
// FIXME:
// A very ugly hack to map a id to a filename, this will generate
// a complete theme list, thus it is slower than it could be.
// But it is the easiest solution for now.
Common::List<ThemeDescriptor> list;
listUsableThemes(list);
for (Common::List<ThemeDescriptor>::const_iterator i = list.begin(); i != list.end(); ++i) {
if (id.equalsIgnoreCase(i->id))
return i->filename;
}
warning("Could not find theme '%s' falling back to builtin", id.c_str());
// If no matching id has been found we will
// just fall back to the builtin theme
return Common::String();
}
Common::String ThemeEngine::getThemeId(const Common::String &filename) {
// If no filename has been given we will initialize the builtin theme
if (filename.empty())
return "builtin";
Common::FSNode node(filename);
if (!node.exists())
return "builtin";
if (node.getName().matchString("*.zip", true)) {
Common::String id = node.getName();
for (int i = 0; i < 4; ++i)
id.deleteLastChar();
return id;
} else {
return node.getName();
}
}
void ThemeEngine::showCursor() {
if (_useCursor) {
CursorMan.pushCursorPalette(_cursorPal, 0, _cursorPalSize);
CursorMan.pushCursor(_cursor, _cursorWidth, _cursorHeight, _cursorHotspotX, _cursorHotspotY, 255, true);
CursorMan.showMouse(true);
}
}
void ThemeEngine::hideCursor() {
if (_useCursor) {
CursorMan.popCursorPalette();
CursorMan.popCursor();
}
}
} // End of namespace GUI.