diff options
Diffstat (limited to 'gui/theme.h')
-rw-r--r-- | gui/theme.h | 361 |
1 files changed, 361 insertions, 0 deletions
diff --git a/gui/theme.h b/gui/theme.h new file mode 100644 index 0000000000..b6730199ef --- /dev/null +++ b/gui/theme.h @@ -0,0 +1,361 @@ +/* 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. + * + * $Header $ + */ + +#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/config-file.h" + +#include "graphics/surface.h" +#include "graphics/fontman.h" + +namespace GUI { + +// 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 +}; + +class Theme { +public: + Theme() : _drawArea(), _configFile() {} + virtual ~Theme() {} + + enum kTextAlign { + kTextAlignLeft, + kTextAlignCenter, + kTextAlignRight + }; + + enum kWidgetBackground { + kWidgetBackgroundNo, + kWidgetBackgroundPlain, + kWidgetBackgroundBorder, + kWidgetBackgroundBorderSmall + }; + + enum kState { + kStateDisabled, + kStateEnabled, + kStateHighlight + }; + + enum kScrollbarState { + kScrollbarStateNo, + kScrollbarStateUp, + kScrollbarStateDown, + kScrollbarStateSlider, + kScrollbarStateSinglePage + }; + + virtual bool init() = 0; + virtual void deinit() = 0; + + virtual void refresh() = 0; + + virtual void enable() = 0; + virtual void disable() = 0; + + virtual void openDialog() = 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() const = 0; + virtual int getFontHeight() const = 0; + virtual int getStringWidth(const Common::String &str) const = 0; + virtual int getCharWidth(byte c) const = 0; + + virtual void drawDialogBackground(const Common::Rect &r, kState state = kStateEnabled, bool mainDialog = false) = 0; + virtual void drawText(const Common::Rect &r, const Common::String &str, kState state = kStateEnabled, kTextAlign align = kTextAlignCenter, bool inverted = false, int deltax = 0, bool useEllipsis = true) = 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, kState state = kStateEnabled) = 0; + + virtual void drawWidgetBackground(const Common::Rect &r, uint16 hints, kWidgetBackground background = kWidgetBackgroundPlain, kState state = kStateEnabled) = 0; + virtual void drawButton(const Common::Rect &r, const Common::String &str, kState state = kStateEnabled) = 0; + virtual void drawSurface(const Common::Rect &r, const Graphics::Surface &surface, kState state = kStateEnabled) = 0; + virtual void drawSlider(const Common::Rect &r, int width, kState state = kStateEnabled) = 0; + virtual void drawCheckbox(const Common::Rect &r, const Common::String &str, bool checked, kState state = kStateEnabled) = 0; + virtual void drawTab(const Common::Rect &r, const Common::String &str, bool active, kState state = kStateEnabled) = 0; + virtual void drawScrollbar(const Common::Rect &r, int sliderY, int sliderHeight, kScrollbarState, kState state = kStateEnabled) = 0; + virtual void drawCaret(const Common::Rect &r, bool erase, kState state = kStateEnabled) = 0; + virtual void drawLineSeparator(const Common::Rect &r, kState state = kStateEnabled) = 0; + + Graphics::TextAlignment convertAligment(kTextAlign align) const { + switch (align) { + case kTextAlignLeft: + return Graphics::kTextAlignLeft; + break; + + case kTextAlignRight: + return Graphics::kTextAlignRight; + break; + + default: + break; + }; + return Graphics::kTextAlignCenter; + }; + + kTextAlign convertAligment(Graphics::TextAlignment align) const { + switch (align) { + case Graphics::kTextAlignLeft: + return kTextAlignLeft; + break; + + case Graphics::kTextAlignRight: + return kTextAlignRight; + break; + + default: + break; + } + return kTextAlignCenter; + } + +protected: + Common::Rect _drawArea; + Common::ConfigFile _configFile; +}; + +#define OLDGUI_TRANSPARENCY + +class ThemeClassic : public Theme { +public: + ThemeClassic(OSystem *system); + virtual ~ThemeClassic(); + + bool init(); + void deinit(); + + void refresh(); + + void enable(); + void disable(); + + void openDialog(); + void closeDialog(); + + void clearAll(); + void drawAll(); + + void resetDrawArea(); + + const Graphics::Font *getFont() const { return _font; } + int getFontHeight() const { if (_initOk) return _font->getFontHeight(); return 0; } + int getStringWidth(const Common::String &str) const { if (_initOk) return _font->getStringWidth(str); return 0; } + int getCharWidth(byte c) const { if (_initOk) return _font->getCharWidth(c); return 0; } + + void drawDialogBackground(const Common::Rect &r, kState state, bool mainDialog); + void drawText(const Common::Rect &r, const Common::String &str, kState state, kTextAlign align, bool inverted, int deltax, bool useEllipsis); + void drawChar(const Common::Rect &r, byte ch, const Graphics::Font *font, kState state); + + void drawWidgetBackground(const Common::Rect &r, uint16 hints, kWidgetBackground background, kState state); + void drawButton(const Common::Rect &r, const Common::String &str, kState state); + void drawSurface(const Common::Rect &r, const Graphics::Surface &surface, kState state); + void drawSlider(const Common::Rect &r, int width, kState state); + void drawCheckbox(const Common::Rect &r, const Common::String &str, bool checked, kState state); + void drawTab(const Common::Rect &r, const Common::String &str, bool active, kState state); + void drawScrollbar(const Common::Rect &r, int sliderY, int sliderHeight, kScrollbarState, kState state); + void drawCaret(const Common::Rect &r, bool erase, kState state); + void drawLineSeparator(const Common::Rect &r, kState state); +private: + void restoreBackground(Common::Rect r); + bool addDirtyRect(Common::Rect r); + + void box(int x, int y, int width, int height, OverlayColor colorA, OverlayColor colorB); + void box(int x, int y, int width, int height); + + OverlayColor getColor(kState state); + + OSystem *_system; + Graphics::Surface _screen; + +#ifdef OLDGUI_TRANSPARENCY + struct DialogState { + Graphics::Surface screen; + } *_dialog; + + void blendScreenToDialog(); +#endif + + bool _initOk; + + const Graphics::Font *_font; + OverlayColor _color, _shadowcolor; + OverlayColor _bgcolor; + OverlayColor _textcolor; + OverlayColor _textcolorhi; +}; + +class ThemeNew : public Theme { +public: + ThemeNew(OSystem *system, Common::String stylefile); + virtual ~ThemeNew(); + + bool init(); + void deinit(); + + void refresh(); + + void enable(); + void disable(); + + void openDialog(); + void closeDialog(); + + void clearAll(); + void drawAll(); + + void resetDrawArea(); + + const Graphics::Font *getFont() const { return _font; } + int getFontHeight() const { if (_font) return _font->getFontHeight(); return 0; } + int getStringWidth(const Common::String &str) const { if (_font) return _font->getStringWidth(str); return 0; } + int getCharWidth(byte c) const { if (_font) return _font->getCharWidth(c); return 0; } + + void drawDialogBackground(const Common::Rect &r, kState state, bool mainDialog); + void drawText(const Common::Rect &r, const Common::String &str, kState state, kTextAlign align, bool inverted, int deltax, bool useEllipsis); + void drawChar(const Common::Rect &r, byte ch, const Graphics::Font *font, kState state); + + void drawWidgetBackground(const Common::Rect &r, uint16 hints, kWidgetBackground background, kState state); + void drawButton(const Common::Rect &r, const Common::String &str, kState state); + void drawSurface(const Common::Rect &r, const Graphics::Surface &surface, kState state); + void drawSlider(const Common::Rect &r, int width, kState state); + void drawCheckbox(const Common::Rect &r, const Common::String &str, bool checked, kState state); + void drawTab(const Common::Rect &r, const Common::String &str, bool active, kState state); + void drawScrollbar(const Common::Rect &r, int sliderY, int sliderHeight, kScrollbarState, kState state); + void drawCaret(const Common::Rect &r, bool erase, kState state); + void drawLineSeparator(const Common::Rect &r, kState state); +private: + bool addDirtyRect(Common::Rect r, bool backup = false); + + void colorFade(const Common::Rect &r, OverlayColor start, OverlayColor end); + void drawRect(const Common::Rect &r, const Graphics::Surface *corner, + const Graphics::Surface *top, const Graphics::Surface *left, const Graphics::Surface *fill, int alpha); + void drawRectMasked(const Common::Rect &r, const Graphics::Surface *corner, const Graphics::Surface *top, + const Graphics::Surface *left, const Graphics::Surface *fill, int alpha, + OverlayColor start, OverlayColor end, uint factor = 1); + void drawSurface(const Common::Rect &r, const Graphics::Surface *surf, bool upDown, bool leftRight, int alpha); + void drawSurfaceMasked(const Common::Rect &r, const Graphics::Surface *surf, bool upDown, bool leftRight, int alpha, + OverlayColor start, OverlayColor end, uint factor = 1); + + OSystem *_system; + Graphics::Surface _screen; + + bool _initOk; + bool _forceRedraw; + + void restoreBackground(Common::Rect r); + OverlayColor getColor(kState state); + + struct DialogState { + Graphics::Surface screen; + } *_dialog; + + const Graphics::Font *_font; + + enum kImageHandles { + kDialogBkgdCorner = 0, + kDialogBkgdTop = 1, + kDialogBkgdLeft = 2, + kDialogBkgd = 3, + kWidgetBkgdCorner = 4, + kWidgetBkgdTop = 5, + kWidgetBkgdLeft = 6, + kWidgetBkgd = 7, + kCheckboxEmpty = 8, + kCheckboxChecked = 9, + kWidgetArrow = 10, + kImageHandlesMax + }; + + const Common::String *_imageHandles; + const Graphics::Surface **_images; + + enum kColorHandles { + kMainDialogStart = 0, + kMainDialogEnd = 1, + + kDialogStart = 2, + kDialogEnd = 3, + + kColorStateDisabled = 4, + kColorStateHighlight = 5, + kColorStateEnabled = 6, + kColorTransparency = 7, + + kTextInvertedBackground = 8, + kTextInvertedColor = 9, + + kWidgetBackgroundStart = 10, + kWidgetBackgroundEnd = 11, + kWidgetBackgroundSmallStart = 12, + kWidgetBackgroundSmallEnd = 13, + + kButtonBackgroundStart = 14, + kButtonBackgroundEnd = 15, + kButtonTextEnabled = 16, + kButtonTextDisabled = 17, + kButtonTextHighlight = 18, + + kSliderBackgroundStart = 19, + kSliderBackgroundEnd = 20, + kSliderStart = 21, + kSliderEnd = 22, + + kTabBackgroundStart = 23, + kTabBackgroundEnd = 24, + + kScrollbarBackgroundStart = 25, + kScrollbarBackgroundEnd = 26, + kScrollbarButtonStart = 27, + kScrollbarButtonEnd = 28, + kScrollbarSliderStart = 29, + kScrollbarSliderEnd = 30, + + kCaretColor = 31, + + kColorHandlesMax + }; + + OverlayColor _colors[kColorHandlesMax]; +}; +} // end of namespace GUI + +#endif // GUI_THEME_H |