OpenMesh
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00001 /*===========================================================================*\ 00002 * * 00003 * OpenMesh * 00004 * Copyright (C) 2001-2011 by Computer Graphics Group, RWTH Aachen * 00005 * www.openmesh.org * 00006 * * 00007 *---------------------------------------------------------------------------* 00008 * This file is part of OpenMesh. * 00009 * * 00010 * OpenMesh is free software: you can redistribute it and/or modify * 00011 * it under the terms of the GNU Lesser General Public License as * 00012 * published by the Free Software Foundation, either version 3 of * 00013 * the License, or (at your option) any later version with the * 00014 * following exceptions: * 00015 * * 00016 * If other files instantiate templates or use macros * 00017 * or inline functions from this file, or you compile this file and * 00018 * link it with other files to produce an executable, this file does * 00019 * not by itself cause the resulting executable to be covered by the * 00020 * GNU Lesser General Public License. This exception does not however * 00021 * invalidate any other reasons why the executable file might be * 00022 * covered by the GNU Lesser General Public License. * 00023 * * 00024 * OpenMesh is distributed in the hope that it will be useful, * 00025 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00026 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * 00027 * GNU Lesser General Public License for more details. * 00028 * * 00029 * You should have received a copy of the GNU LesserGeneral Public * 00030 * License along with OpenMesh. If not, * 00031 * see <http://www.gnu.org/licenses/>. * 00032 * * 00033 \*===========================================================================*/ 00034 00035 /*===========================================================================*\ 00036 * * 00037 * $Revision: 362 $ * 00038 * $Date: 2011-01-26 10:21:12 +0100 (Mi, 26 Jan 2011) $ * 00039 * * 00040 \*===========================================================================*/ 00041 00042 //============================================================================= 00043 // 00044 // Implements the OpenMesh IOManager singleton 00045 // 00046 //============================================================================= 00047 00048 #ifndef __IOMANAGER_HH__ 00049 #define __IOMANAGER_HH__ 00050 00051 00052 //=== INCLUDES ================================================================ 00053 00054 00055 // STL 00056 #include <iostream> 00057 #include <sstream> 00058 #include <string> 00059 #include <set> 00060 00061 // OpenMesh 00062 #include <OpenMesh/Core/System/config.h> 00063 #include <OpenMesh/Core/IO/Options.hh> 00064 #include <OpenMesh/Core/IO/reader/BaseReader.hh> 00065 #include <OpenMesh/Core/IO/writer/BaseWriter.hh> 00066 #include <OpenMesh/Core/IO/importer/BaseImporter.hh> 00067 #include <OpenMesh/Core/IO/exporter/BaseExporter.hh> 00068 #include <OpenMesh/Core/Utils/SingletonT.hh> 00069 00070 00071 //== NAMESPACES =============================================================== 00072 00073 00074 namespace OpenMesh { 00075 namespace IO { 00076 00077 00078 //=== IMPLEMENTATION ========================================================== 00079 00080 00100 class _IOManager_ 00101 { 00102 private: 00103 00104 _IOManager_() {} 00105 friend _IOManager_& IOManager(); 00106 00107 00108 public: 00109 00110 00117 bool read(const std::string& _filename, 00118 BaseImporter& _bi, 00119 Options& _opt); 00120 00127 bool read(std::istream& _filename, 00128 const std::string& _ext, 00129 BaseImporter& _bi, 00130 Options& _opt); 00131 00132 00139 bool write(const std::string& _filename, 00140 BaseExporter& _be, 00141 Options _opt=Options::Default); 00142 00149 bool write(std::ostream& _filename, 00150 const std::string& _ext, 00151 BaseExporter& _be, 00152 Options _opt=Options::Default); 00153 00154 00156 bool can_read( const std::string& _format ) const; 00157 00159 bool can_write( const std::string& _format ) const; 00160 00161 00162 size_t binary_size(const std::string& _format, 00163 BaseExporter& _be, 00164 Options _opt = Options::Default) 00165 { 00166 const BaseWriter *bw = find_writer(_format); 00167 return bw ? bw->binary_size(_be,_opt) : 0; 00168 } 00169 00170 00171 00172 public: //-- QT convenience function ------------------------------------------ 00173 00174 00179 const std::string& qt_read_filters() const { return read_filters_; } 00180 00181 00186 const std::string& qt_write_filters() const { return write_filters_; } 00187 00188 00189 00190 private: 00191 00192 // collect all readable file extensions 00193 void update_read_filters(); 00194 00195 00196 // collect all writeable file extensions 00197 void update_write_filters(); 00198 00199 00200 00201 public: //-- SYSTEM PART------------------------------------------------------ 00202 00203 00207 bool register_module(BaseReader* _bl) 00208 { 00209 reader_modules_.insert(_bl); 00210 update_read_filters(); 00211 return true; 00212 } 00213 00214 00215 00219 bool register_module(BaseWriter* _bw) 00220 { 00221 writer_modules_.insert(_bw); 00222 update_write_filters(); 00223 return true; 00224 } 00225 00226 00227 private: 00228 00229 const BaseWriter *find_writer(const std::string& _format); 00230 00231 // stores registered reader modules 00232 std::set<BaseReader*> reader_modules_; 00233 00234 // stores registered writer modules 00235 std::set<BaseWriter*> writer_modules_; 00236 00237 // input filters (e.g. for Qt file dialog) 00238 std::string read_filters_; 00239 00240 // output filters (e.g. for Qt file dialog) 00241 std::string write_filters_; 00242 }; 00243 00244 00245 //============================================================================= 00246 00247 00248 extern _IOManager_* __IOManager_instance; 00249 00250 _IOManager_& IOManager(); 00251 00252 00253 00254 //============================================================================= 00255 } // namespace IO 00256 } // namespace OpenMesh 00257 //============================================================================= 00258 #endif 00259 //=============================================================================