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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.
*
*/
#ifndef BACKENDS_GRAPHICS_SDL_SDLGRAPHICS_H
#define BACKENDS_GRAPHICS_SDL_SDLGRAPHICS_H
#include "backends/graphics/windowed.h"
#include "backends/platform/sdl/sdl-window.h"
#include "common/events.h"
#include "common/rect.h"
class SdlEventSource;
#if !defined(_WIN32_WCE) && !defined(__SYMBIAN32__)
#define USE_OSD 1
#endif
/**
* Base class for a SDL based graphics manager.
*/
class SdlGraphicsManager : virtual public WindowedGraphicsManager, public Common::EventObserver {
public:
SdlGraphicsManager(SdlEventSource *source, SdlWindow *window);
virtual ~SdlGraphicsManager() {}
/**
* Makes this graphics manager active. That means it should be ready to
* process inputs now. However, even without being active it should be
* able to query the supported modes and other bits.
*/
virtual void activateManager();
/**
* Makes this graphics manager inactive. This should allow another
* graphics manager to become active again.
*/
virtual void deactivateManager();
/**
* Notify the graphics manager that the graphics needs to be redrawn, since
* the application window was modified.
*
* This is basically called when SDL_VIDEOEXPOSE was received.
*/
virtual void notifyVideoExpose() = 0;
/**
* Notify the graphics manager about a resize event.
*
* It is noteworthy that the requested width/height should actually be set
* up as is and not changed by the graphics manager, since otherwise it may
* lead to odd behavior for certain window managers.
*
* It is only required to overwrite this method in case you want a
* resizable window. The default implementation just does nothing.
*
* @param width Requested window width.
* @param height Requested window height.
*/
virtual void notifyResize(const int width, const int height) {}
/**
* Notifies the graphics manager about a mouse position change.
*
* The passed point *must* be converted from window coordinates to virtual
* coordinates in order for the event to be processed correctly by the game
* engine. Just use `convertWindowToVirtual` for this unless you need to do
* something special.
*
* @param mouse The mouse position in window coordinates, which must be
* converted synchronously to virtual coordinates.
* @returns true if the mouse was in a valid position for the game and
* should cause the event to be sent to the game.
*/
virtual bool notifyMousePosition(Common::Point &mouse);
virtual bool showMouse(const bool visible) override;
virtual bool saveScreenshot(const Common::String &filename) const { return false; }
void saveScreenshot();
// Override from Common::EventObserver
virtual bool notifyEvent(const Common::Event &event) override;
/**
* A (subset) of the graphic manager's state. This is used when switching
* between different SDL graphic managers at runtime.
*/
struct State {
int screenWidth, screenHeight;
bool aspectRatio;
bool fullscreen;
bool cursorPalette;
#ifdef USE_RGB_COLOR
Graphics::PixelFormat pixelFormat;
#endif
};
/**
* Gets the current state of the graphics manager.
*/
State getState() const;
/**
* Sets up a basic state of the graphics manager.
*/
bool setState(const State &state);
/**
* @returns the SDL window.
*/
SdlWindow *getWindow() const { return _window; }
virtual void initSizeHint(const Graphics::ModeList &modes) override;
protected:
virtual int getGraphicsModeScale(int mode) const = 0;
bool defaultGraphicsModeConfig() const;
int getGraphicsModeIdByName(const Common::String &name) const;
/**
* Gets the dimensions of the window directly from SDL instead of from the
* values stored by the graphics manager.
*/
void getWindowSizeFromSdl(int *width, int *height) const {
#if SDL_VERSION_ATLEAST(2, 0, 0)
assert(_window);
SDL_GetWindowSize(_window->getSDLWindow(), width, height);
#else
assert(_hwScreen);
if (width) {
*width = _hwScreen->w;
}
if (height) {
*height = _hwScreen->h;
}
#endif
}
virtual void setSystemMousePosition(const int x, const int y) override;
virtual void handleResizeImpl(const int width, const int height) override;
#if SDL_VERSION_ATLEAST(2, 0, 0)
public:
void unlockWindowSize() {
_allowWindowSizeReset = true;
_hintedWidth = 0;
_hintedHeight = 0;
}
protected:
Uint32 _lastFlags;
bool _allowWindowSizeReset;
int _hintedWidth, _hintedHeight;
bool createOrUpdateWindow(const int width, const int height, const Uint32 flags);
#endif
SDL_Surface *_hwScreen;
SdlEventSource *_eventSource;
SdlWindow *_window;
private:
void toggleFullScreen();
};
#endif
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