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 ResourceDatabase_INCLUDE_ONCE 00033 #define ResourceDatabase_INCLUDE_ONCE 00034 00035 #include <vlCore/Object.hpp> 00036 #include <vlCore/String.hpp> 00037 #include <vector> 00038 #include <algorithm> 00039 00040 namespace vl 00041 { 00042 class VirtualFile; 00043 00048 class VLCORE_EXPORT ResourceDatabase: public Object 00049 { 00050 VL_INSTRUMENT_CLASS(vl::ResourceDatabase, Object) 00051 00052 public: 00053 ResourceDatabase() 00054 { 00055 VL_DEBUG_SET_OBJECT_NAME() 00056 } 00057 00058 const std::vector< ref<Object> >& resources() const { return mResources; } 00059 00060 std::vector< ref<Object> >& resources() { return mResources; } 00061 00063 template<class T> 00064 T* next(int& cur_pos) const 00065 { 00066 for(unsigned i=cur_pos; i<mResources.size(); ++i) 00067 { 00068 ref<T> r = cast<T>(mResources[i].get()); 00069 if (r) 00070 { 00071 cur_pos = i+1; 00072 return r.get(); 00073 } 00074 } 00075 return NULL; 00076 } 00077 00079 template<class T> 00080 void get( std::vector< ref<T> >& resources, bool clear_vector=true ) 00081 { 00082 if (clear_vector) 00083 resources.clear(); 00084 00085 for( unsigned i=0; i<mResources.size(); ++i ) 00086 { 00087 ref<T> r = cast<T>(mResources[i].get()); 00088 if (r) 00089 resources.push_back(r); 00090 } 00091 } 00092 00094 template<class T> 00095 void extract( std::vector< ref<T> >& resources, bool clear_vector=true ) 00096 { 00097 if (clear_vector) 00098 resources.clear(); 00099 00100 size_t start = resources.size(); 00101 00102 for( unsigned i=mResources.size(); i--; ) 00103 { 00104 ref<T> r = cast<T>(mResources[i].get()); 00105 if (r) 00106 { 00107 resources.push_back(r); 00108 mResources.erase(mResources.begin()+i); 00109 } 00110 } 00111 00112 std::reverse(resources.begin()+start, resources.end()); 00113 } 00114 00116 template<class T> 00117 size_t count() const 00118 { 00119 size_t count=0; 00120 for(unsigned i=0; i<mResources.size(); ++i) 00121 { 00122 const T* r = cast_const<T>(mResources[i].get()); 00123 if (r) 00124 ++count; 00125 } 00126 return count; 00127 } 00128 00130 template<class T> 00131 const T* get(int j) const 00132 { 00133 int count=0; 00134 for(unsigned i=0; i<mResources.size(); ++i) 00135 { 00136 const T* r = cast_const<T>(mResources[i].get()); 00137 if (r) 00138 { 00139 if (count == j) 00140 return r; 00141 else 00142 ++count; 00143 } 00144 } 00145 return NULL; 00146 } 00147 00149 template<class T> 00150 T* get(int j) 00151 { 00152 int count=0; 00153 for(unsigned i=0; i<mResources.size(); ++i) 00154 { 00155 T* r = cast<T>(mResources[i].get()); 00156 if (r) 00157 { 00158 if (count == j) 00159 return r; 00160 else 00161 ++count; 00162 } 00163 } 00164 return NULL; 00165 } 00166 00167 protected: 00168 std::vector< ref<Object> > mResources; 00169 }; 00170 00172 VLCORE_EXPORT bool canLoad(const String& path); 00173 00175 VLCORE_EXPORT bool canWrite(const String& path); 00176 00178 VLCORE_EXPORT bool canLoad(VirtualFile* file); 00179 00181 VLCORE_EXPORT bool canWrite(VirtualFile* file); 00182 00184 VLCORE_EXPORT ref<ResourceDatabase> loadResource(const String& path, bool quick=true); 00185 00187 VLCORE_EXPORT ref<ResourceDatabase> loadResource(VirtualFile* file, bool quick=true); 00188 00190 VLCORE_EXPORT bool writeResource(const String& path, ResourceDatabase* resource); 00191 00193 VLCORE_EXPORT bool writeResource(VirtualFile* file, ResourceDatabase* resource); 00194 } 00195 00196 #endif