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/* 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.
*
* $URL$
* $Id$
*
*/
#ifndef INTERFACE_MANAGER_H
#define INTERFACE_MANAGER_H
#include "common/scummsys.h"
#include "graphics/surface.h"
#include "common/system.h"
#include "graphics/surface.h"
#include "graphics/fontman.h"
#include "gui/dialog.h"
#include "gui/ThemeParser.h"
#include "graphics/VectorRenderer.h"
namespace GUI {
struct WidgetDrawData;
struct WidgetDrawData {
Common::List<Graphics::DrawStep> _steps;
Graphics::TextStep _textStep;
bool _hasText;
bool _cached;
Graphics::Surface *_surfaceCache;
uint32 _cachedW, _cachedH;
~WidgetDrawData() {
_steps.clear();
if (_surfaceCache) {
_surfaceCache->free();
delete _surfaceCache;
}
}
};
class ThemeRenderer : public Theme {
typedef Common::String String;
typedef GUI::Dialog Dialog;
friend class GUI::Dialog;
friend class GUI::GuiObject;
/** Strings representing each value in the DrawData enum */
static const char *kDrawDataStrings[];
/** Constant value to expand dirty rectangles, to make sure they are fully copied */
static const int kDirtyRectangleThreshold = 2;
public:
enum GraphicsMode {
kGfxDisabled = 0,
kGfxStandard16bit,
kGfxAntialias16bit
};
enum DrawData {
kDDMainDialogBackground,
kDDSpecialColorBackground,
kDDPlainColorBackground,
kDDDefaultBackground,
kDDWidgetBackgroundDefault,
kDDWidgetBackgroundSmall,
kDDWidgetBackgroundEditText,
kDDWidgetBackgroundSlider,
kDDButtonIdle,
kDDButtonHover,
kDDButtonDisabled,
kDDSliderFull,
kDDSliderEmpty,
kDDCheckboxEnabled,
kDDCheckboxDisabled,
kDDTab,
kDDScrollbarBase,
kDDScrollbarHandle,
kDDPopUp,
kDDCaret,
kDDSeparator,
kDrawDataMAX
};
ThemeRenderer(Common::String themeName, GraphicsMode mode);
~ThemeRenderer() {
freeRenderer();
freeScreen();
unloadTheme();
delete _parser;
}
// virtual methods from Theme
bool init();
void deinit();
void clearAll();
void refresh() {}
void enable();
void disable();
void openDialog() {}
void closeAllDialogs() {}
void updateScreen(); //{}
void resetDrawArea() {}
void openDialog(bool top) {}
/** Font management */
const Graphics::Font *getFont(FontStyle font) const { return _font; }
int getFontHeight(FontStyle font = kFontStyleBold) const { if (_initOk) return _font->getFontHeight(); return 0; }
int getStringWidth(const Common::String &str, FontStyle font) const { if (_initOk) return _font->getStringWidth(str); return 0; }
int getCharWidth(byte c, FontStyle font) const { if (_initOk) return _font->getCharWidth(c); return 0; }
/** Widget drawing */
void drawWidgetBackground(const Common::Rect &r, uint16 hints, WidgetBackground background = kWidgetBackgroundPlain, WidgetStateInfo state = kStateEnabled);
void drawButton(const Common::Rect &r, const Common::String &str, WidgetStateInfo state = kStateEnabled, uint16 hints = 0);
void drawSurface(const Common::Rect &r, const Graphics::Surface &surface, WidgetStateInfo state = kStateEnabled, int alpha = 256, bool themeTrans = false);
void drawSlider(const Common::Rect &r, int width, WidgetStateInfo state = kStateEnabled);
void drawCheckbox(const Common::Rect &r, const Common::String &str, bool checked, WidgetStateInfo state = kStateEnabled);
void drawTab(const Common::Rect &r, int tabHeight, int tabWidth, const Common::Array<Common::String> &tabs, int active, uint16 hints, int titleVPad, WidgetStateInfo state = kStateEnabled);
void drawScrollbar(const Common::Rect &r, int sliderY, int sliderHeight, ScrollbarState, WidgetStateInfo state = kStateEnabled);
void drawPopUpWidget(const Common::Rect &r, const Common::String &sel, int deltax, WidgetStateInfo state = kStateEnabled, TextAlign align = kTextAlignLeft);
void drawCaret(const Common::Rect &r, bool erase, WidgetStateInfo state = kStateEnabled);
void drawLineSeparator(const Common::Rect &r, WidgetStateInfo state = kStateEnabled);
void drawDialogBackground(const Common::Rect &r, uint16 hints, WidgetStateInfo state);
void drawText(const Common::Rect &r, const Common::String &str, WidgetStateInfo state, TextAlign align, bool inverted, int deltax, bool useEllipsis, FontStyle font) {}
void drawChar(const Common::Rect &r, byte ch, const Graphics::Font *font, WidgetStateInfo state) {}
bool addDirtyRect(Common::Rect r, bool backup = false, bool special = false) {
r.grow(kDirtyRectangleThreshold);
_dirtyScreen.push_back(r);
return true;
}
// custom stuff - tanoku
DrawData getDrawDataId(Common::String &name) {
for (int i = 0; i < kDrawDataMAX; ++i)
if (name.compareToIgnoreCase(kDrawDataStrings[i]) == 0)
return (DrawData)i;
return (DrawData)-1;
}
void addDrawStep(Common::String &drawDataId, Graphics::DrawStep step);
bool addDrawData(DrawData data_id, bool cached);
bool addTextStep(Common::String &drawDataId, Graphics::TextStep step);
ThemeParser *parser() {
return _parser;
}
bool ready() {
return _initOk && _themeOk;
}
bool loadTheme(Common::String themeName);
void setGraphicsMode(GraphicsMode mode);
protected:
template<typename PixelType> void screenInit();
bool loadThemeXML(Common::String themeName);
bool loadDefaultXML();
void unloadTheme() {
if (!_themeOk)
return;
for (int i = 0; i < kDrawDataMAX; ++i) {
delete _widgets[i];
_widgets[i] = 0;
}
_themeOk = false;
}
void screenChange() {}
void renderDirtyScreen();
void freeRenderer() {
delete _vectorRenderer;
_vectorRenderer = 0;
}
void freeScreen() {
if (_screen != 0) {
_screen->free();
delete _screen;
_screen = 0;
}
}
bool needRedraw() {
return true;
}
void redrawDialogStack();
bool hasWidgetText(DrawData type) {
return (_widgets[type] != 0 && _widgets[type]->_hasText);
}
bool isWidgetCached(DrawData type, const Common::Rect &r);
void drawCached(DrawData type, const Common::Rect &r);
inline void drawDD(DrawData type, const Common::Rect &r);
inline void drawDDText(DrawData type, const Common::Rect &r, const Common::String &text);
inline void debugWidgetPosition(const char *name, const Common::Rect &r);
// TODO
void restoreBackground(Common::Rect r, bool special = false) {}
int getTabSpacing() const {
return 0;
}
int getTabPadding() const {
return 3;
}
OSystem *_system;
Graphics::VectorRenderer *_vectorRenderer;
GUI::ThemeParser *_parser;
Graphics::Surface *_screen;
int _bytesPerPixel;
GraphicsMode _graphicsMode;
Common::String _fontName;
const Graphics::Font *_font;
WidgetDrawData *_widgets[kDrawDataMAX];
Common::Array<Common::Rect> _dirtyScreen;
bool _initOk;
bool _themeOk;
bool _caching;
bool _enabled;
Common::String _themeName;
};
} // end of namespace GUI.
#endif
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