Crazy Eddie's GUI System  0.8.4
RenderTarget.h
00001 /***********************************************************************
00002     created:    Wed, 8th Feb 2012
00003     author:     Lukas E Meindl (based on code by Paul D Turner)
00004 *************************************************************************/
00005 /***************************************************************************
00006  *   Copyright (C) 2004 - 2012 Paul D Turner & The CEGUI Development Team
00007  *
00008  *   Permission is hereby granted, free of charge, to any person obtaining
00009  *   a copy of this software and associated documentation files (the
00010  *   "Software"), to deal in the Software without restriction, including
00011  *   without limitation the rights to use, copy, modify, merge, publish,
00012  *   distribute, sublicense, and/or sell copies of the Software, and to
00013  *   permit persons to whom the Software is furnished to do so, subject to
00014  *   the following conditions:
00015  *
00016  *   The above copyright notice and this permission notice shall be
00017  *   included in all copies or substantial portions of the Software.
00018  *
00019  *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
00020  *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00021  *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
00022  *   IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
00023  *   OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
00024  *   ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
00025  *   OTHER DEALINGS IN THE SOFTWARE.
00026  ***************************************************************************/
00027 #ifndef _CEGUIOpenGLRenderTarget_h_
00028 #define _CEGUIOpenGLRenderTarget_h_
00029 
00030 #include "CEGUI/RendererModules/OpenGL/RendererBase.h"
00031 #include "../../RenderTarget.h"
00032 #include "../../Rect.h"
00033 
00034 #if defined(_MSC_VER)
00035 #   pragma warning(push)
00036 #   pragma warning(disable : 4251)
00037 #endif
00038 
00039 namespace CEGUI
00040 {
00045 template <typename T = RenderTarget>
00046 class OPENGL_GUIRENDERER_API OpenGLRenderTarget : public T
00047 {
00048 public:
00050     OpenGLRenderTarget(OpenGLRendererBase& owner);
00051     virtual ~OpenGLRenderTarget();
00052 
00053     // implement parts of RenderTarget interface
00054     void draw(const GeometryBuffer& buffer);
00055     void draw(const RenderQueue& queue);
00056     void setArea(const Rectf& area);
00057     const Rectf& getArea() const;
00058     void activate();
00059     void deactivate();
00060     void unprojectPoint(const GeometryBuffer& buff,
00061                         const Vector2f& p_in, Vector2f& p_out) const;
00062 
00063 protected:
00065     virtual void updateMatrix() const;
00066 
00068     OpenGLRendererBase& d_owner;
00070     Rectf d_area;
00072     static const double d_yfov_tan;
00074     mutable mat4Pimpl* d_matrix;
00076     mutable bool d_matrixValid;
00078     mutable double d_viewDistance;
00079 };
00080 
00081 }
00082 
00083 #if defined(_MSC_VER)
00084 #   pragma warning(pop)
00085 #endif
00086 
00087 #endif
00088 
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