Visualization Library v1.0.3A lightweight C++ OpenGL middleware for 2D/3D graphics |
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00001 /**************************************************************************************/ 00002 /* */ 00003 /* Visualization Library */ 00004 /* http://visualizationlibrary.org */ 00005 /* */ 00006 /* Copyright (c) 2005-2010, Michele Bosi */ 00007 /* All rights reserved. */ 00008 /* */ 00009 /* Redistribution and use in source and binary forms, with or without modification, */ 00010 /* are permitted provided that the following conditions are met: */ 00011 /* */ 00012 /* - Redistributions of source code must retain the above copyright notice, this */ 00013 /* list of conditions and the following disclaimer. */ 00014 /* */ 00015 /* - Redistributions in binary form must reproduce the above copyright notice, this */ 00016 /* list of conditions and the following disclaimer in the documentation and/or */ 00017 /* other materials provided with the distribution. */ 00018 /* */ 00019 /* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND */ 00020 /* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED */ 00021 /* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE */ 00022 /* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR */ 00023 /* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES */ 00024 /* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; */ 00025 /* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON */ 00026 /* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT */ 00027 /* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS */ 00028 /* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ 00029 /* */ 00030 /**************************************************************************************/ 00031 00032 #ifndef LoadWriterManager_INCLUDE_ONCE 00033 #define LoadWriterManager_INCLUDE_ONCE 00034 00035 #include <vlCore/ResourceLoadWriter.hpp> 00036 #include <vlCore/ResourceDatabase.hpp> 00037 #include <vlCore/VirtualFile.hpp> 00038 #include <vlCore/MemoryFile.hpp> 00039 #include <vlCore/VisualizationLibrary.hpp> 00040 00041 namespace vl 00042 { 00044 class LoadCallback: public Object 00045 { 00046 public: 00047 virtual void operator()(ResourceDatabase* db) = 0; 00048 }; 00049 00051 class WriteCallback: public Object 00052 { 00053 public: 00054 virtual void operator()(ResourceDatabase* db) = 0; 00055 }; 00056 00060 class VLCORE_EXPORT LoadWriterManager: public Object 00061 { 00062 VL_INSTRUMENT_CLASS(vl::LoadWriterManager, Object) 00063 00064 public: 00065 LoadWriterManager() 00066 { 00067 VL_DEBUG_SET_OBJECT_NAME() 00068 } 00069 00070 void registerLoadWriter(ResourceLoadWriter*); 00071 00073 std::vector< ref<ResourceLoadWriter> >& loadWriters() { return mLoadWriters; } 00074 00076 const std::vector< ref<ResourceLoadWriter> >& loadWriters() const { return mLoadWriters; } 00077 00079 template<class T> 00080 T* loadWriter() 00081 { 00082 for(size_t i=0; i<loadWriters().size(); ++i) 00083 { 00084 T* load_writer = loadWriters()[i]->as<T>(); 00085 if (load_writer) 00086 return load_writer; 00087 } 00088 return NULL; 00089 } 00090 00092 bool canLoad(const String& path) const { return findLoader(path) != NULL; } 00093 00095 bool canLoad(VirtualFile* file) const { return findLoader(file->path()) != NULL; } 00096 00098 bool canWrite(const String& path) const { return findWriter(path) != NULL; } 00099 00101 bool canWrite(VirtualFile* file) const { return findWriter(file->path()) != NULL; } 00102 00104 const ResourceLoadWriter* findLoader(const String& path) const; 00105 00107 const ResourceLoadWriter* findWriter(const String& path) const; 00108 00110 const ResourceLoadWriter* findLoader(VirtualFile* file) const; 00111 00113 const ResourceLoadWriter* findWriter(VirtualFile* file) const; 00114 00116 ref<ResourceDatabase> loadResource(const String& path, bool quick=true) const; 00117 00119 ref<ResourceDatabase> loadResource(VirtualFile* file, bool quick=true) const; 00120 00122 bool writeResource(const String& path, ResourceDatabase* resource) const; 00123 00125 bool writeResource(VirtualFile* file, ResourceDatabase* resource) const; 00126 00127 const std::vector< ref<LoadCallback> >& loadCallbacks() const { return mLoadCallbacks; } 00128 00129 const std::vector< ref<WriteCallback> >& writeCallbacks() const { return mWriteCallbacks; } 00130 00131 std::vector< ref<LoadCallback> >& loadCallbacks() { return mLoadCallbacks; } 00132 00133 std::vector< ref<WriteCallback> >& writeCallbacks() { return mWriteCallbacks; } 00134 00135 protected: 00136 std::vector< ref<ResourceLoadWriter> > mLoadWriters; 00137 std::vector< ref<LoadCallback> > mLoadCallbacks; 00138 std::vector< ref<WriteCallback> > mWriteCallbacks; 00139 }; 00140 00142 VLCORE_EXPORT LoadWriterManager* defLoadWriterManager(); 00143 00145 VLCORE_EXPORT void setDefLoadWriterManager(LoadWriterManager* lwm); 00146 00148 inline void registerLoadWriter(ResourceLoadWriter* rlw) { defLoadWriterManager()->registerLoadWriter(rlw); } 00149 } 00150 00151 #endif