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RendererModules/Ogre/RenderTarget.h
1 /***********************************************************************
2  created: Tue Feb 17 2009
3  author: Paul D Turner
4 *************************************************************************/
5 /***************************************************************************
6  * Copyright (C) 2004 - 2011 Paul D Turner & The CEGUI Development Team
7  *
8  * Permission is hereby granted, free of charge, to any person obtaining
9  * a copy of this software and associated documentation files (the
10  * "Software"), to deal in the Software without restriction, including
11  * without limitation the rights to use, copy, modify, merge, publish,
12  * distribute, sublicense, and/or sell copies of the Software, and to
13  * permit persons to whom the Software is furnished to do so, subject to
14  * the following conditions:
15  *
16  * The above copyright notice and this permission notice shall be
17  * included in all copies or substantial portions of the Software.
18  *
19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
20  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
22  * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
23  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
24  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
25  * OTHER DEALINGS IN THE SOFTWARE.
26  ***************************************************************************/
27 #ifndef _CEGUIOgreRenderTarget_h_
28 #define _CEGUIOgreRenderTarget_h_
29 
30 #include "../../RenderTarget.h"
31 #include "CEGUI/RendererModules/Ogre/Renderer.h"
32 #include "../../Rect.h"
33 #include <OgreMatrix4.h>
34 
35 // Start of CEGUI namespace section
36 namespace CEGUI
37 {
39 template <typename T = RenderTarget>
40 class OGRE_GUIRENDERER_API OgreRenderTarget : public T
41 {
42 public:
44  OgreRenderTarget(OgreRenderer& owner, Ogre::RenderSystem& rs);
45 
47  virtual ~OgreRenderTarget();
48 
62  void setOgreViewportDimensions(const Rectf& area);
63 
64  // implement parts of CEGUI::RenderTarget interface
65  void draw(const GeometryBuffer& buffer);
66  void draw(const RenderQueue& queue);
67  void setArea(const Rectf& area);
68  const Rectf& getArea() const;
69  void activate();
70  void deactivate();
71  void unprojectPoint(const GeometryBuffer& buff,
72  const Vector2f& p_in, Vector2f& p_out) const;
73 
74 protected:
76  void updateMatrix() const;
78  void updateViewport();
80  void updateOgreViewportDimensions(const Ogre::RenderTarget* const rt);
81 
83  OgreRenderer& d_owner;
85  Ogre::RenderSystem& d_renderSystem;
87  Rectf d_area;
89  Ogre::RenderTarget* d_renderTarget;
91  Ogre::Viewport* d_viewport;
93  mutable Ogre::Matrix4 d_matrix;
95  mutable bool d_matrixValid;
97  mutable float d_viewDistance;
99  bool d_viewportValid;
101  Rectf d_ogreViewportDimensions;
102 };
103 
104 } // End of CEGUI namespace section
105 
106 #endif // end of guard _CEGUIOgreRenderTarget_h_