00001 /* 00002 ----------------------------------------------------------------------------- 00003 This source file is part of OGRE 00004 (Object-oriented Graphics Rendering Engine) 00005 For the latest info, see http://www.ogre3d.org/ 00006 00007 Copyright (c) 2000-2005 The OGRE Team 00008 Also see acknowledgements in Readme.html 00009 00010 This program is free software; you can redistribute it and/or modify it under 00011 the terms of the GNU Lesser General Public License as published by the Free Software 00012 Foundation; either version 2 of the License, or (at your option) any later 00013 version. 00014 00015 This program is distributed in the hope that it will be useful, but WITHOUT 00016 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 00017 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. 00018 00019 You should have received a copy of the GNU Lesser General Public License along with 00020 this program; if not, write to the Free Software Foundation, Inc., 59 Temple 00021 Place - Suite 330, Boston, MA 02111-1307, USA, or go to 00022 http://www.gnu.org/copyleft/lesser.txt. 00023 ----------------------------------------------------------------------------- 00024 */ 00025 #ifndef __RenderTargetListener_H__ 00026 #define __RenderTargetListener_H__ 00027 00028 00029 #include "OgrePrerequisites.h" 00030 00031 namespace Ogre { 00032 00035 struct RenderTargetEvent 00036 { 00038 RenderTarget* source; 00039 }; 00040 00043 struct RenderTargetViewportEvent 00044 { 00046 Viewport* source; 00047 }; 00048 00068 class _OgreExport RenderTargetListener 00069 { 00070 /* 00071 Note that this could have been an abstract class, but I made 00072 the explicit choice not to do this, because I wanted to give 00073 people the option of only implementing the methods they wanted, 00074 rather than having to create 'do nothing' implementations for 00075 those they weren't interested in. As such this class follows 00076 the 'Adapter' classes in Java rather than pure interfaces. 00077 */ 00078 public: 00079 virtual ~RenderTargetListener() {} 00091 virtual void preRenderTargetUpdate(const RenderTargetEvent& evt) { } 00100 virtual void postRenderTargetUpdate(const RenderTargetEvent& evt) { } 00101 00102 /* Called just before a Viewport on a RenderTarget is to be updated. 00103 @remarks 00104 This method is called before each viewport on the RenderTarget is 00105 rendered to. You can use this to perform per-viewport settings changes, 00106 such as showing / hiding particular overlays. 00107 */ 00108 virtual void preViewportUpdate(const RenderTargetViewportEvent& evt) { } 00109 00110 /* Called just after a Viewport on a RenderTarget is to be updated. 00111 @remarks 00112 This method is called after each viewport on the RenderTarget is 00113 rendered to. 00114 */ 00115 virtual void postViewportUpdate(const RenderTargetViewportEvent& evt) { } 00116 00120 virtual void viewportAdded(const RenderTargetViewportEvent& evt) {} 00124 virtual void viewportRemoved(const RenderTargetViewportEvent& evt) {} 00125 }; 00126 } 00127 00128 #endif
Copyright © 2000-2005 by The OGRE Team
This work is licensed under a Creative Commons Attribution-ShareAlike 2.5 License.
Last modified Sun Mar 12 14:37:48 2006