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CEGUIOpenGLRenderTarget.h

00001 /***********************************************************************
00002     filename:   CEGUIOpenGLRenderTarget.h
00003     created:    Wed Jan 14 2009
00004     author:     Paul D Turner
00005 *************************************************************************/
00006 /***************************************************************************
00007  *   Copyright (C) 2004 - 2009 Paul D Turner & The CEGUI Development Team
00008  *
00009  *   Permission is hereby granted, free of charge, to any person obtaining
00010  *   a copy of this software and associated documentation files (the
00011  *   "Software"), to deal in the Software without restriction, including
00012  *   without limitation the rights to use, copy, modify, merge, publish,
00013  *   distribute, sublicense, and/or sell copies of the Software, and to
00014  *   permit persons to whom the Software is furnished to do so, subject to
00015  *   the following conditions:
00016  *
00017  *   The above copyright notice and this permission notice shall be
00018  *   included in all copies or substantial portions of the Software.
00019  *
00020  *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
00021  *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00022  *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
00023  *   IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
00024  *   OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
00025  *   ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
00026  *   OTHER DEALINGS IN THE SOFTWARE.
00027  ***************************************************************************/
00028 #ifndef _CEGUIOpenGLRenderTarget_h_
00029 #define _CEGUIOpenGLRenderTarget_h_
00030 
00031 #include "CEGUIOpenGLRenderer.h"
00032 #include "../../CEGUIRenderTarget.h"
00033 #include "../../CEGUIRect.h"
00034 
00035 // Start of CEGUI namespace section
00036 namespace CEGUI
00037 {
00042 class OPENGL_GUIRENDERER_API OpenGLRenderTarget : public virtual RenderTarget
00043 {
00044 public:
00046     OpenGLRenderTarget(OpenGLRenderer& owner);
00047 
00048     // implement parts of RenderTarget interface
00049     void draw(const GeometryBuffer& buffer);
00050     void draw(const RenderQueue& queue);
00051     void setArea(const Rect& area);
00052     const Rect& getArea() const;
00053     void activate();
00054     void deactivate();
00055     void unprojectPoint(const GeometryBuffer& buff,
00056                         const Vector2& p_in, Vector2& p_out) const;
00057 
00058 protected:
00060     virtual void updateMatrix() const;
00061 
00063     OpenGLRenderer& d_owner;
00065     Rect d_area;
00067     static const double d_yfov_tan;
00069     mutable double d_matrix[16];
00071     mutable bool d_matrixValid;
00073     mutable double d_viewDistance;
00074 };
00075 
00076 } // End of  CEGUI namespace section
00077 
00078 #endif  // end of guard _CEGUIOpenGLRenderTarget_h_

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