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# OgreTerrainPageSource.h

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    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 © 2000-2004 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
    00026 #ifndef __TerrainPageSource_H__
    00027 #define __TerrainPageSource_H__
    00028
    00029 #include "OgreTerrainPrerequisites.h"
    00030 #include "OgreSingleton.h"
    00031
    00032 namespace Ogre {
    00033
    00034     typedef std::pair<String, String> TerrainPageSourceOption;
    00035     typedef std::vector<TerrainPageSourceOption> TerrainPageSourceOptionList;
    00036
    00040     class _OgreTerrainExport TerrainPageSourceListener
    00041     {
    00042     public:
    00049         virtual void pageConstructed(size_t pagex, size_t pagez, Real* heightData) = 0;
    00050     };
    00051
    00055     class _OgreTerrainExport TerrainPageSourceListenerManager :
    00056         public Singleton<TerrainPageSourceListenerManager>
    00057     {
    00058     protected:
    00059         typedef std::vector<TerrainPageSourceListener*> PageSourceListenerList;
    00060         PageSourceListenerList mPageSourceListeners;
    00061     public:
    00062         TerrainPageSourceListenerManager() {}
    00063         ~TerrainPageSourceListenerManager() {}
    00064
    00071         void addListener(TerrainPageSourceListener* pl);
    00075         void removeListener(TerrainPageSourceListener* pl);
    00076
    00078         void firePageConstructed(size_t pagex, size_t pagez, Real* heightData);
    00079
    00082         static TerrainPageSourceListenerManager& getSingleton(void);
    00085         static TerrainPageSourceListenerManager* getSingletonPtr(void);
    00086
    00087     };
    00088
    00089
    00131     class _OgreTerrainExport TerrainPageSource
    00132     {
    00133     protected:
    00135         TerrainSceneManager* mSceneManager;
    00137         bool mAsyncLoading;
    00139         unsigned short mPageSize;
    00141         unsigned short mTileSize;
    00142
    00144         static void firePageConstructed(size_t pagex, size_t pagez, Real* heightData);
    00145
    00153         virtual TerrainPage* buildPage(Real* heightData, Material* pMaterial);
    00154
    00155
    00156     public:
    00157         TerrainPageSource();
    00158         virtual ~TerrainPageSource() { shutdown(); }
    00159
    00180         virtual void initialise(TerrainSceneManager* tsm,
    00181             ushort tileSize, ushort pageSize, bool asyncLoading,
    00182             TerrainPageSourceOptionList& optionList)
    00183         {
    00184             mSceneManager = tsm;
    00185             mTileSize = tileSize;
    00186             mPageSize = pageSize;
    00187             mAsyncLoading = asyncLoading;
    00188         }
    00196         virtual void shutdown(void) {}
    00197
    00219         virtual void requestPage(ushort x, ushort z) = 0;
    00235         virtual void expirePage(ushort x, ushort z) = 0;
    00236
    00243         static void addListener(TerrainPageSourceListener* pl);
    00247         static void removeListener(TerrainPageSourceListener* pl);
    00248
    00249     };
    00250
    00251 }
    00252
    00253 #endif

Copyright © 2002-2003 by The OGRE Team
Last modified Sun Nov 28 19:48:48 2004