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/* ScummVM - Scumm Interpreter
* Copyright (C) 2006 The ScummVM project
*
* 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 GUI_THEME_H
#define GUI_THEME_H
#include "common/stdafx.h"
#include "common/system.h"
#include "common/rect.h"
#include "common/str.h"
#include "common/file.h"
#include "common/config-file.h"
#include "graphics/surface.h"
#include "graphics/fontman.h"
#define THEME_VERSION 20
namespace GUI {
class Eval;
// Hints to the theme engine that the widget is used in a non-standard way.
enum {
// Indicates that this is the first time the widget is drawn.
THEME_HINT_FIRST_DRAW = 1 << 0,
// Indicates that the widget will be redrawn often, e.g. list widgets.
// It may therefore be a good idea to save the background so that it
// can be redrawn quickly.
THEME_HINT_SAVE_BACKGROUND = 1 << 1,
// Indicates that this is the launcher dialog (maybe delete this in the future)
THEME_HINT_MAIN_DIALOG = 1 << 2,
// Indicates special colorfade
THEME_HINT_SPECIAL_COLOR = 1 << 3,
// Indicates no colorfade
THEME_HINT_PLAIN_COLOR = 1 << 4,
// Indictaes that a shadows should be drawn around the background
THEME_HINT_USE_SHADOW = 1 << 5,
// Indicates that no background should be restored when drawing the widget
// (note that this can be silently ignored if for example the theme does
// alpha blending and would blend over a allready drawn widget)
// TODO: currently only ThemeModern::drawButton supports this
THEME_HINT_NO_BACKGROUND_RESTORE = 1 << 6
};
class Theme {
public:
Theme();
virtual ~Theme();
enum TextAlign {
kTextAlignLeft,
kTextAlignCenter,
kTextAlignRight
};
enum WidgetBackground {
kWidgetBackgroundNo,
kWidgetBackgroundPlain,
kWidgetBackgroundBorder,
kWidgetBackgroundBorderSmall,
kWidgetBackgroundEditText,
kWidgetBackgroundSlider
};
enum State {
kStateDisabled,
kStateEnabled,
kStateHighlight
};
enum ScrollbarState {
kScrollbarStateNo,
kScrollbarStateUp,
kScrollbarStateDown,
kScrollbarStateSlider,
kScrollbarStateSinglePage
};
enum FontStyle {
kFontStyleBold = 0, // standard font
kFontStyleNormal = 1,
kFontStyleItalic = 2,
kFontStyleFixedNormal = 3,
kFontStyleFixedBold = 4,
kFontStyleFixedItalic = 5,
kFontStyleMax
};
enum ShadingStyle {
kShadingNone,
kShadingDim,
kShadingLuminance
};
virtual bool init() = 0;
virtual void deinit() = 0;
virtual void refresh() = 0;
virtual bool ownCursor() { return false; }
virtual void enable() = 0;
virtual void disable() = 0;
virtual void openDialog(bool topDialog) = 0;
virtual void closeDialog() = 0;
virtual void clearAll() = 0;
virtual void drawAll() = 0;
virtual void setDrawArea(const Common::Rect &r) { _drawArea = r; }
// resets the draw area to the screen size
virtual void resetDrawArea() = 0;
virtual const Common::ConfigFile &getConfigFile() { return _configFile; }
virtual const Graphics::Font *getFont(FontStyle font = kFontStyleBold) const = 0;
virtual int getFontHeight(FontStyle font = kFontStyleBold) const = 0;
virtual int getStringWidth(const Common::String &str, FontStyle font = kFontStyleBold) const = 0;
virtual int getCharWidth(byte c, FontStyle font = kFontStyleBold) const = 0;
virtual void drawDialogBackground(const Common::Rect &r, uint16 hints, State state = kStateEnabled) = 0;
virtual void drawText(const Common::Rect &r, const Common::String &str, State state = kStateEnabled, TextAlign align = kTextAlignCenter, bool inverted = false, int deltax = 0, bool useEllipsis = true, FontStyle font = kFontStyleBold) = 0;
// this should ONLY be used by the debugger until we get a nicer solution
virtual void drawChar(const Common::Rect &r, byte ch, const Graphics::Font *font, State state = kStateEnabled) = 0;
virtual void drawWidgetBackground(const Common::Rect &r, uint16 hints, WidgetBackground background = kWidgetBackgroundPlain, State state = kStateEnabled) = 0;
virtual void drawButton(const Common::Rect &r, const Common::String &str, State state = kStateEnabled, uint16 hints = 0) = 0;
virtual void drawSurface(const Common::Rect &r, const Graphics::Surface &surface, State state = kStateEnabled, int alpha = 256, bool themeTrans = false) = 0;
virtual void drawSlider(const Common::Rect &r, int width, State state = kStateEnabled) = 0;
virtual void drawCheckbox(const Common::Rect &r, const Common::String &str, bool checked, State state = kStateEnabled) = 0;
virtual void drawTab(const Common::Rect &r, int tabHeight, int tabWidth, const Common::Array<Common::String> &tabs, int active, uint16 hints, int titleVPad, State state = kStateEnabled) = 0;
virtual void drawScrollbar(const Common::Rect &r, int sliderY, int sliderHeight, ScrollbarState, State state = kStateEnabled) = 0;
virtual void drawPopUpWidget(const Common::Rect &r, const Common::String &sel, int deltax, State state = kStateEnabled, TextAlign align = kTextAlignLeft) = 0;
virtual void drawCaret(const Common::Rect &r, bool erase, State state = kStateEnabled) = 0;
virtual void drawLineSeparator(const Common::Rect &r, State state = kStateEnabled) = 0;
virtual void restoreBackground(Common::Rect r, bool special = false) = 0;
virtual bool addDirtyRect(Common::Rect r, bool save = false, bool special = false) = 0;
virtual int getTabSpacing() const = 0;
virtual int getTabPadding() const = 0;
Graphics::TextAlignment convertAligment(TextAlign align) const {
switch (align) {
case kTextAlignLeft:
return Graphics::kTextAlignLeft;
break;
case kTextAlignRight:
return Graphics::kTextAlignRight;
break;
default:
break;
};
return Graphics::kTextAlignCenter;
};
TextAlign convertAligment(Graphics::TextAlignment align) const {
switch (align) {
case Graphics::kTextAlignLeft:
return kTextAlignLeft;
break;
case Graphics::kTextAlignRight:
return kTextAlignRight;
break;
default:
break;
}
return kTextAlignCenter;
}
void processResSection(Common::ConfigFile &config, const Common::String &name, bool skipDefs = false, const Common::String &prefix = "");
void processSingleLine(const Common::String §ion, const Common::String &prefix, const Common::String &name, const Common::String &str);
void setSpecialAlias(const Common::String &alias, const Common::String &name);
bool isThemeLoadingRequired();
bool sectionIsSkipped(Common::ConfigFile &config, const char *name, int w, int h);
void loadTheme(Common::ConfigFile &config, bool reset = true);
Eval *_evaluator;
static bool themeConfigUseable(const Common::String &file, const Common::String &style="", Common::String *cStyle=0, Common::ConfigFile *cfg=0);
const Common::String &getStylefileName() const { return _stylefile; }
const Common::String &getThemeName() const { return _stylename; }
virtual bool supportsImages() const { return false; }
enum kThemeImages {
kImageLogo = 0
};
virtual const Graphics::Surface *getImageSurface(const kThemeImages n) const { return 0; }
protected:
bool loadConfigFile(const Common::String &file);
void getColorFromConfig(const Common::String &name, OverlayColor &col);
void getColorFromConfig(const Common::String &value, uint8 &r, uint8 &g, uint8 &b);
const Graphics::Font *loadFont(const char *filename);
Common::String genCacheFilename(const char *filename);
Common::String _stylefile, _stylename;
Common::Rect _drawArea;
Common::ConfigFile _configFile;
Common::ConfigFile _defaultConfig;
public:
bool needThemeReload() { return ((_loadedThemeX != g_system->getOverlayWidth()) ||
(_loadedThemeY != g_system->getOverlayHeight())); }
private:
static const char *_defaultConfigINI;
int _loadedThemeX, _loadedThemeY;
};
} // end of namespace GUI
#endif // GUI_THEME_H
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