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IOManager.hh
1 /*===========================================================================*\
2 * *
3 * OpenMesh *
4 * Copyright (C) 2001-2012 by Computer Graphics Group, RWTH Aachen *
5 * www.openmesh.org *
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8 * This file is part of OpenMesh. *
9 * *
10 * OpenMesh is free software: you can redistribute it and/or modify *
11 * it under the terms of the GNU Lesser General Public License as *
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17 * or inline functions from this file, or you compile this file and *
18 * link it with other files to produce an executable, this file does *
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20 * GNU Lesser General Public License. This exception does not however *
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27 * GNU Lesser General Public License for more details. *
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33 \*===========================================================================*/
34
35 /*===========================================================================*\
36 * *
37 * $Revision: 748 $ *
38 * $Date: 2012-10-15 15:52:32 +0200 (Mo, 15 Okt 2012) $ *
39 * *
40 \*===========================================================================*/
41
42 //=============================================================================
43 //
44 // Implements the OpenMesh IOManager singleton
45 //
46 //=============================================================================
47
48 #ifndef __IOMANAGER_HH__
49 #define __IOMANAGER_HH__
50
51
52 //=== INCLUDES ================================================================
53
54
55 // STL
56 #include <iostream>
57 #include <sstream>
58 #include <string>
59 #include <set>
60
61 // OpenMesh
62 #include <OpenMesh/Core/System/config.h>
63 #include <OpenMesh/Core/IO/Options.hh>
64 #include <OpenMesh/Core/IO/reader/BaseReader.hh>
65 #include <OpenMesh/Core/IO/writer/BaseWriter.hh>
66 #include <OpenMesh/Core/IO/importer/BaseImporter.hh>
67 #include <OpenMesh/Core/IO/exporter/BaseExporter.hh>
68 #include <OpenMesh/Core/Utils/SingletonT.hh>
69
70
71 //== NAMESPACES ===============================================================
72
73
74 namespace OpenMesh {
75 namespace IO {
76
77
78 //=== IMPLEMENTATION ==========================================================
79
80
100 class OPENMESHDLLEXPORT _IOManager_
101 {
102 private:
103
104 _IOManager_() {}
105 friend OPENMESHDLLEXPORT _IOManager_& IOManager();
106
107
108 public:
109
110
117 bool read(const std::string& _filename,
118 BaseImporter& _bi,
119 Options& _opt);
120
127 bool read(std::istream& _filename,
128 const std::string& _ext,
129 BaseImporter& _bi,
130 Options& _opt);
131
132
139 bool write(const std::string& _filename,
140 BaseExporter& _be,
141 Options _opt=Options::Default,
142 std::streamsize _precision = 6);
143
150 bool write(std::ostream& _filename,
151 const std::string& _ext,
152 BaseExporter& _be,
153 Options _opt=Options::Default,
154 std::streamsize _precision = 6);
155
156
158 bool can_read( const std::string& _format ) const;
159
161 bool can_write( const std::string& _format ) const;
162
163
164 size_t binary_size(const std::string& _format,
165 BaseExporter& _be,
166 Options _opt = Options::Default)
167 {
168 const BaseWriter *bw = find_writer(_format);
169 return bw ? bw->binary_size(_be,_opt) : 0;
170 }
171
172
173
174 public: //-- QT convenience function ------------------------------------------
175
176
181 const std::string& qt_read_filters() const { return read_filters_; }
182
183
188 const std::string& qt_write_filters() const { return write_filters_; }
189
190
191
192 private:
193
194 // collect all readable file extensions
195 void update_read_filters();
196
197
198 // collect all writeable file extensions
199 void update_write_filters();
200
201
202
203 public: //-- SYSTEM PART------------------------------------------------------
204
205
209 bool register_module(BaseReader* _bl)
210 {
211 reader_modules_.insert(_bl);
212 update_read_filters();
213 return true;
214 }
215
216
217
221 bool register_module(BaseWriter* _bw)
222 {
223 writer_modules_.insert(_bw);
224 update_write_filters();
225 return true;
226 }
227
228
229 private:
230
231 const BaseWriter *find_writer(const std::string& _format);
232
233 // stores registered reader modules
234 std::set<BaseReader*> reader_modules_;
235
236 // stores registered writer modules
237 std::set<BaseWriter*> writer_modules_;
238
239 // input filters (e.g. for Qt file dialog)
240 std::string read_filters_;
241
242 // output filters (e.g. for Qt file dialog)
243 std::string write_filters_;
244 };
245
246
247 //=============================================================================
248
249
250 extern _IOManager_* __IOManager_instance;
251
252 OPENMESHDLLEXPORT _IOManager_& IOManager();
253
254
255
256 //=============================================================================
257 } // namespace IO
258 } // namespace OpenMesh
259 //=============================================================================
260 #endif
261 //=============================================================================