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https://github.com/libretro/scummvm.git
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148 lines
3.8 KiB
C++
148 lines
3.8 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*/
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#ifndef GUIMANAGER_H
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#define GUIMANAGER_H
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#include "common/scummsys.h"
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#include "common/singleton.h"
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#include "common/stack.h"
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#include "common/str.h"
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#include "graphics/fontman.h"
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#include "gui/widget.h"
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#include "gui/ThemeEngine.h"
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class OSystem;
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namespace GUI {
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class Dialog;
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class ThemeEval;
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#define g_gui (GUI::GuiManager::instance())
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// Height of a single text line
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#define kLineHeight (g_gui.getFontHeight() + 2)
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// Simple dialog stack class
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// Anybody nesting dialogs deeper than 4 is mad anyway
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typedef Common::FixedStack<Dialog *> DialogStack;
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/**
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* GUI manager singleton.
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*/
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class GuiManager : public Common::Singleton<GuiManager> {
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friend class Dialog;
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friend class Common::Singleton<SingletonBaseType>;
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GuiManager();
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~GuiManager();
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public:
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// Main entry for the GUI: this will start an event loop that keeps running
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// until no dialogs are active anymore.
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void runLoop();
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bool isActive() const { return ! _dialogStack.empty(); }
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bool loadNewTheme(Common::String id, ThemeEngine::GraphicsMode gfx = ThemeEngine::kGfxDisabled);
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ThemeEngine *theme() { return _theme; }
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ThemeEval *xmlEval() { return _theme->getEvaluator(); }
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const Graphics::Font &getFont(ThemeEngine::FontStyle style = ThemeEngine::kFontStyleBold) const { return *(_theme->getFont(style)); }
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int getFontHeight(ThemeEngine::FontStyle style = ThemeEngine::kFontStyleBold) const { return _theme->getFontHeight(style); }
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int getStringWidth(const Common::String &str, ThemeEngine::FontStyle style = ThemeEngine::kFontStyleBold) const { return _theme->getStringWidth(str, style); }
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int getCharWidth(byte c, ThemeEngine::FontStyle style = ThemeEngine::kFontStyleBold) const { return _theme->getCharWidth(c, style); }
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/**
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* Tell the GuiManager to check whether the screen resolution has changed.
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* If that is the case, the GuiManager will reload/refresh the active theme.
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*
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* @return true if the a screen change indeed occurred, false otherwise
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*/
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bool checkScreenChange();
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protected:
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enum RedrawStatus {
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kRedrawDisabled = 0,
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kRedrawOpenDialog,
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kRedrawCloseDialog,
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kRedrawTopDialog,
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kRedrawFull
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};
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OSystem *_system;
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ThemeEngine *_theme;
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// bool _needRedraw;
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RedrawStatus _redrawStatus;
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int _lastScreenChangeID;
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DialogStack _dialogStack;
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bool _stateIsSaved;
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bool _useStdCursor;
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// position and time of last mouse click (used to detect double clicks)
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struct {
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int16 x, y; // Position of mouse when the click occured
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uint32 time; // Time
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int count; // How often was it already pressed?
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} _lastClick;
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// mouse cursor state
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int _cursorAnimateCounter;
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int _cursorAnimateTimer;
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byte _cursor[2048];
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void initKeymap();
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void saveState();
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void restoreState();
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void openDialog(Dialog *dialog);
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void closeTopDialog();
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void redraw();
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void loop();
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void setupCursor();
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void animateCursor();
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Dialog *getTopDialog() const;
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void screenChange();
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};
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} // End of namespace GUI
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#endif
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