6e46e9dfaf
Sadly this also requires us to extend GraphicsManager for this SDL specific feature. However, since that's only used in the SDL backend and Tizen it should be fine for now...
89 lines
2.8 KiB
C++
89 lines
2.8 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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* 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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* 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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*/
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#ifndef BACKENDS_GRAPHICS_SDL_SDLGRAPHICS_H
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#define BACKENDS_GRAPHICS_SDL_SDLGRAPHICS_H
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#include "common/rect.h"
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class SdlEventSource;
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/**
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* Base class for a SDL based graphics manager.
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*
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* It features a few extra a few extra features required by SdlEventSource.
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* FIXME/HACK:
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* Note it does not inherit from GraphicsManager to avoid a diamond inheritance
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* in the current OpenGLSdlGraphicsManager.
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*/
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class SdlGraphicsManager {
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public:
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SdlGraphicsManager(SdlEventSource *source);
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virtual ~SdlGraphicsManager();
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/**
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* Notify the graphics manager that the graphics needs to be redrawn, since
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* the application window was modified.
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*
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* This is basically called when SDL_VIDEOEXPOSE was received.
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*/
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virtual void notifyVideoExpose() = 0;
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/**
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* Notify the graphics manager about an resize event.
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*
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* It is noteworthy that the requested width/height should actually be set
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* up as is and not changed by the graphics manager, since else it might
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* lead to odd behavior for certain window managers.
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*
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* It is only required to overwrite this method in case you want a
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* resizable window. The default implementation just does nothing.
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*
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* @param width Requested window width.
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* @param height Requested window height.
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*/
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virtual void notifyResize(const uint width, const uint height) {}
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/**
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* Transforms real screen coordinates into the current active screen
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* coordinates (may be either game screen or overlay).
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*
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* @param point Mouse coordinates to transform.
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*/
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virtual void transformMouseCoordinates(Common::Point &point) = 0;
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/**
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* Notifies the graphics manager about a position change according to the
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* real screen coordinates.
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*
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* @param mouse Mouse position.
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*/
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virtual void notifyMousePos(Common::Point mouse) = 0;
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protected:
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void initEventSource();
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void deinitEventSource();
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SdlEventSource *_eventSource;
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};
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#endif
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