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IOManager.hh
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42/*===========================================================================*\
43 * *
44 * $Revision$ *
45 * $Date$ *
46 * *
47\*===========================================================================*/
48
49//=============================================================================
50//
51// Implements the OpenMesh IOManager singleton
52//
53//=============================================================================
54
55#ifndef __IOMANAGER_HH__
56#define __IOMANAGER_HH__
57
58
59//=== INCLUDES ================================================================
60
61
62// STL
63#include <iosfwd>
64#include <sstream>
65#include <string>
66#include <set>
67
68// OpenMesh
69#include <OpenMesh/Core/System/config.h>
70#include <OpenMesh/Core/IO/Options.hh>
71#include <OpenMesh/Core/IO/reader/BaseReader.hh>
72#include <OpenMesh/Core/IO/writer/BaseWriter.hh>
73#include <OpenMesh/Core/IO/importer/BaseImporter.hh>
74#include <OpenMesh/Core/IO/exporter/BaseExporter.hh>
75#include <OpenMesh/Core/Utils/SingletonT.hh>
76
77
78//== NAMESPACES ===============================================================
79
80
81namespace OpenMesh {
82namespace IO {
83
84
85//=== IMPLEMENTATION ==========================================================
86
87
107class OPENMESHDLLEXPORT _IOManager_
108{
109private:
110
112 _IOManager_() {}
113
115 ~_IOManager_() {};
116
120 friend OPENMESHDLLEXPORT _IOManager_& IOManager();
121
122public:
123
130 bool read(const std::string& _filename,
131 BaseImporter& _bi,
132 Options& _opt);
133
140 bool read(std::istream& _filename,
141 const std::string& _ext,
142 BaseImporter& _bi,
143 Options& _opt);
144
145
152 bool write(const std::string& _filename,
153 BaseExporter& _be,
154 Options _opt=Options::Default,
155 std::streamsize _precision = 6);
156
163 bool write(std::ostream& _filename,
164 const std::string& _ext,
165 BaseExporter& _be,
166 Options _opt=Options::Default,
167 std::streamsize _precision = 6);
168
169
171 bool can_read( const std::string& _format ) const;
172
174 bool can_write( const std::string& _format ) const;
175
176
177 size_t binary_size(const std::string& _format,
178 BaseExporter& _be,
179 Options _opt = Options::Default)
180 {
181 const BaseWriter *bw = find_writer(_format);
182 return bw ? bw->binary_size(_be,_opt) : 0;
183 }
184
185
186
187public: //-- QT convenience function ------------------------------------------
188
189
194 const std::string& qt_read_filters() const { return read_filters_; }
195
196
201 const std::string& qt_write_filters() const { return write_filters_; }
202
203
204
205private:
206
207 // collect all readable file extensions
208 void update_read_filters();
209
210
211 // collect all writeable file extensions
212 void update_write_filters();
213
214
215
216public: //-- SYSTEM PART------------------------------------------------------
217
218
223 {
224 reader_modules_.insert(_bl);
225 update_read_filters();
226 return true;
227 }
228
229
230
235 {
236 writer_modules_.insert(_bw);
237 update_write_filters();
238 return true;
239 }
240
241
242private:
243
244 const BaseWriter *find_writer(const std::string& _format);
245
246 // stores registered reader modules
247 std::set<BaseReader*> reader_modules_;
248
249 // stores registered writer modules
250 std::set<BaseWriter*> writer_modules_;
251
252 // input filters (e.g. for Qt file dialog)
253 std::string read_filters_;
254
255 // output filters (e.g. for Qt file dialog)
256 std::string write_filters_;
257};
258
259
260//=============================================================================
261
262
263//_IOManager_* __IOManager_instance; Causes memory leak, as destructor is never called
264
265OPENMESHDLLEXPORT _IOManager_& IOManager();
266
267//=============================================================================
268} // namespace IO
269} // namespace OpenMesh
270//=============================================================================
271#endif
272//=============================================================================
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition MeshItems.hh:64
size_t binary_size(const Mesh &_mesh, const std::string &_ext, Options _opt=Options::Default)
Get binary size of data.
Definition MeshIO.hh:260
Base class for exporter modules.
Definition BaseExporter.hh:90
Base class for importer modules.
Definition BaseImporter.hh:89
This is the real IOManager class that is later encapsulated by SingletonT to enforce its uniqueness.
Definition IOManager.hh:108
const std::string & qt_read_filters() const
Returns all readable file extension + descriptions in one string.
Definition IOManager.hh:194
bool register_module(BaseWriter *_bw)
Registers a new writer module.
Definition IOManager.hh:234
const std::string & qt_write_filters() const
Returns all writeable file extension + descriptions in one string.
Definition IOManager.hh:201
bool register_module(BaseReader *_bl)
Registers a new reader module.
Definition IOManager.hh:222
Set options for reader/writer modules.
Definition Options.hh:96
Base class for reader modules.
Definition BaseReader.hh:95
Base class for all writer modules.
Definition BaseWriter.hh:89
virtual size_t binary_size(BaseExporter &, Options) const
Returns expected size of file if binary format is supported else 0.
Definition BaseWriter.hh:133

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