OSGSceneFileHandler.h
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00039 #ifndef _OSGSCENEFILEHANDLER_H_
00040 #define _OSGSCENEFILEHANDLER_H_
00041 #ifdef __sgi
00042 #pragma once
00043 #endif
00044
00045 #include <string>
00046 #include <list>
00047 #include <map>
00048 #include <iostream>
00049
00050 #include "OSGSystemDef.h"
00051 #include "OSGBaseTypes.h"
00052 #include "OSGSceneFileType.h"
00053 #include "OSGPathHandler.h"
00054 #include "OSGSingletonHolder.h"
00055
00056 OSG_BEGIN_NAMESPACE
00057
00058 class GraphOpSeq;
00059
00064 class OSG_SYSTEM_DLLMAPPING SceneFileHandlerBase
00065 {
00066
00067
00068 typedef NodePtr (*FileIOReadCBF )( SceneFileType *type,
00069 std::istream &is,
00070 const Char8 *ext );
00071
00072 typedef bool (*FileIOWriteCBF)( SceneFileType *type,
00073 const NodePtr &node,
00074 std::ostream &os,
00075 const Char8 *ext,
00076 bool compress);
00077
00078 public:
00079
00080 typedef std::vector<FieldContainerPtr> FCPtrStore;
00081
00082
00086 virtual SceneFileType *getFileType(const Char8 *fileNameOrExtension);
00087
00088 virtual int getSuffixList(std::list<const Char8*> &suffixList,
00089 UInt32 flags = (
00090 SceneFileType::OSG_READ_SUPPORTED |
00091 SceneFileType::OSG_WRITE_SUPPORTED));
00092
00094
00098 typedef void (*progresscbfp) (UInt32 p);
00099 void setReadProgressCB(progresscbfp fp, bool use_thread = true);
00100 progresscbfp getReadProgressCB(void);
00101
00102 void updateReadProgress(void);
00103 void updateReadProgress(UInt32 p);
00104
00105 void setWriteProgressCB(progresscbfp fp);
00106 progresscbfp getWriteProgressCB(void);
00107
00108 void updateWriteProgress(UInt32 p);
00109
00111
00115 virtual NodePtr read ( std::istream &is,
00116 const Char8 *ext,
00117 GraphOpSeq *graphOpSeq =
00118 _defaultgraphOpSeq);
00119
00120 virtual FCPtrStore readTopNodes( std::istream &is,
00121 const Char8 *ext,
00122 GraphOpSeq *graphOpSeq =
00123 _defaultgraphOpSeq);
00124
00125 virtual NodePtr read (const Char8 *fileName,
00126 GraphOpSeq *graphOpSeq =
00127 _defaultgraphOpSeq);
00128
00129 virtual FCPtrStore readTopNodes(const Char8 *fileName,
00130 GraphOpSeq *graphOpSeq =
00131 _defaultgraphOpSeq);
00132
00134
00138 void setReadCB(FileIOReadCBF fp);
00139 FileIOReadCBF getReadCB(void );
00140
00142
00146 virtual bool write(const NodePtr &node,
00147 std::ostream &os,
00148 const Char8 *ext,
00149 bool compress = false);
00150 virtual bool write(const NodePtr &node,
00151 const Char8 *fileName,
00152 bool compress = false);
00154
00158 void setWriteCB(FileIOWriteCBF fp);
00159 FileIOWriteCBF getWriteCB(void );
00160
00162
00166 virtual PathHandler* getPathHandler(void );
00167 virtual void setPathHandler(PathHandler *pathHandler);
00168
00170
00174 virtual GraphOpSeq *getDefaultGraphOp(void );
00175 virtual void setDefaultGraphOp(GraphOpSeq *graphOpSeq);
00176
00178
00182 virtual bool setOptions(const Char8 *suffix,
00183 const Char8 *options);
00184 virtual const Char8 *getOptions(const Char8 *suffix);
00185
00187
00191 void print (void);
00192
00194
00195
00196 protected:
00197
00198 typedef std::list< SceneFileType *> FileTypeList;
00199 typedef std::map <IDString, FileTypeList *> FileTypeMap;
00200
00201 struct FindOverride
00202 {
00203 UInt32 uiRefPriority;
00204
00205 bool operator() (SceneFileType *fileTypeP);
00206 };
00207
00208
00212 FileTypeMap _suffixTypeMap;
00213
00214
00215 bool addSceneFileType(SceneFileType &fileType);
00216 bool subSceneFileType(SceneFileType &fileType);
00217
00219
00223 SceneFileHandlerBase(void);
00224
00226
00230 virtual ~SceneFileHandlerBase(void);
00231
00233
00234
00235 private:
00236
00237 friend class SceneFileType;
00238
00239 template <class SingletonT>
00240 friend class SingletonHolder;
00241
00242 std::string initPathHandler(const Char8 *fileName);
00243
00244 struct progressS
00245 {
00246 UInt64 length;
00247 std::istream *is;
00248 };
00249
00250 void initReadProgress (std::istream &is);
00251 void terminateReadProgress(void );
00252 static void readProgress (void *data );
00253
00254 progresscbfp _readProgressFP;
00255 progressS _progressData;
00256 bool _readReady;
00257 bool _useProgressThread;
00258
00259 progresscbfp _writeProgressFP;
00260
00261 PathHandler *_pathHandler;
00262 PathHandler _defaultPathHandler;
00263 static GraphOpSeq *_defaultgraphOpSeq;
00264
00265 FileIOReadCBF _readFP;
00266 FileIOWriteCBF _writeFP;
00267
00269 void operator =(const SceneFileHandlerBase &source);
00271 SceneFileHandlerBase(const SceneFileHandlerBase &source);
00272 };
00273
00274
00275 #if defined(WIN32)
00276 # if !defined(OSG_COMPILE_SCENEFILEHANDLER)
00277 OSG_SYSTEM_EXPIMP_TMPL
00278 template class OSG_SYSTEM_DLLMAPPING SingletonHolder<SceneFileHandlerBase>;
00279 # endif
00280 #endif
00281
00282 typedef SingletonHolder<SceneFileHandlerBase> SceneFileHandler;
00283
00284 typedef SceneFileHandler* SceneFileHandlerP;
00285
00286 OSG_END_NAMESPACE
00287
00288 #endif // OSGIMAGEFILEHANDLER_CLASS_DECLARATION
