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b311480e | 1 | // Created on: 2002-10-29 |
2 | // Created by: Michael SAZONOV | |
973c2be1 | 3 | // Copyright (c) 2002-2014 OPEN CASCADE SAS |
b311480e | 4 | // |
973c2be1 | 5 | // This file is part of Open CASCADE Technology software library. |
b311480e | 6 | // |
d5f74e42 | 7 | // This library is free software; you can redistribute it and/or modify it under |
8 | // the terms of the GNU Lesser General Public License version 2.1 as published | |
973c2be1 | 9 | // by the Free Software Foundation, with special exception defined in the file |
10 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT | |
11 | // distribution for complete text of the license and disclaimer of any warranty. | |
b311480e | 12 | // |
973c2be1 | 13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. | |
7fd59977 | 15 | |
42cf5bc1 | 16 | |
7fd59977 | 17 | #include <BinLDrivers.hxx> |
42cf5bc1 | 18 | #include <BinLDrivers_DocumentSection.hxx> |
19 | #include <BinLDrivers_DocumentStorageDriver.hxx> | |
7fd59977 | 20 | #include <BinLDrivers_Marker.hxx> |
21 | #include <BinMDF_ADriver.hxx> | |
42cf5bc1 | 22 | #include <BinMDF_ADriverTable.hxx> |
7fd59977 | 23 | #include <BinObjMgt_Persistent.hxx> |
24 | #include <CDM_Application.hxx> | |
42cf5bc1 | 25 | #include <CDM_Document.hxx> |
26 | #include <CDM_MessageDriver.hxx> | |
7fd59977 | 27 | #include <FSD_BinaryFile.hxx> |
28 | #include <FSD_FileHeader.hxx> | |
4ff92abe | 29 | #include <OSD_OpenFile.hxx> |
7fd59977 | 30 | #include <PCDM_ReadWriter.hxx> |
31 | #include <Standard_ErrorHandler.hxx> | |
42cf5bc1 | 32 | #include <Standard_Type.hxx> |
7fd59977 | 33 | #include <Storage_Schema.hxx> |
42cf5bc1 | 34 | #include <TCollection_AsciiString.hxx> |
35 | #include <TCollection_ExtendedString.hxx> | |
7fd59977 | 36 | #include <TColStd_Array1OfInteger.hxx> |
37 | #include <TColStd_ListIteratorOfListOfInteger.hxx> | |
38 | #include <TColStd_ListOfInteger.hxx> | |
7fd59977 | 39 | #include <TDF_AttributeIterator.hxx> |
40 | #include <TDF_ChildIterator.hxx> | |
41 | #include <TDF_Data.hxx> | |
42cf5bc1 | 42 | #include <TDF_Label.hxx> |
7fd59977 | 43 | #include <TDF_Tool.hxx> |
44 | #include <TDocStd_Document.hxx> | |
45 | ||
92efcf78 | 46 | IMPLEMENT_STANDARD_RTTIEXT(BinLDrivers_DocumentStorageDriver,PCDM_StorageDriver) |
47 | ||
7fd59977 | 48 | #define SHAPESECTION_POS (Standard_CString)"SHAPE_SECTION_POS:" |
49 | ||
50 | //======================================================================= | |
51 | //function : BinLDrivers_DocumentStorageDriver | |
52 | //purpose : Constructor | |
53 | //======================================================================= | |
54 | ||
55 | BinLDrivers_DocumentStorageDriver::BinLDrivers_DocumentStorageDriver () | |
56 | { | |
57 | } | |
58 | ||
7fd59977 | 59 | //======================================================================= |
60 | //function : Write | |
61 | //purpose : | |
62 | //======================================================================= | |
63 | ||
64 | void BinLDrivers_DocumentStorageDriver::Write | |
65 | (const Handle(CDM_Document)& theDocument, | |
66 | const TCollection_ExtendedString& theFileName) | |
67 | { | |
15e8b082 M |
68 | SetIsError(Standard_False); |
69 | SetStoreStatus(PCDM_SS_OK); | |
70 | ||
4ff92abe | 71 | myFileName = theFileName; |
72 | ||
73 | std::ofstream aFileStream; | |
74 | OSD_OpenStream (aFileStream, theFileName, std::ios::out | std::ios::binary); | |
75 | ||
76 | if (aFileStream.is_open() && aFileStream.good()) | |
77 | { | |
78 | Write (theDocument, aFileStream); | |
79 | } | |
80 | else | |
81 | { | |
82 | SetIsError (Standard_True); | |
83 | SetStoreStatus(PCDM_SS_WriteFailure); | |
84 | } | |
85 | } | |
86 | ||
87 | //======================================================================= | |
88 | //function : Write | |
89 | //purpose : | |
90 | //======================================================================= | |
91 | ||
92 | void BinLDrivers_DocumentStorageDriver::Write (const Handle(CDM_Document)& theDoc, Standard_OStream& theOStream) | |
93 | { | |
94 | myMsgDriver = theDoc->Application()->MessageDriver(); | |
7fd59977 | 95 | myMapUnsupported.Clear(); |
96 | ||
7fd59977 | 97 | Handle(TDocStd_Document) aDoc = |
4ff92abe | 98 | Handle(TDocStd_Document)::DownCast(theDoc); |
7fd59977 | 99 | if (aDoc.IsNull()) { |
15e8b082 M |
100 | SetIsError(Standard_True); |
101 | SetStoreStatus(PCDM_SS_Doc_IsNull); | |
7fd59977 | 102 | } |
103 | else { | |
7fd59977 | 104 | // First pass: collect empty labels, assign IDs to the types |
105 | if (myDrivers.IsNull()) | |
106 | myDrivers = AttributeDrivers (myMsgDriver); | |
107 | Handle(TDF_Data) aData = aDoc->GetData(); | |
108 | FirstPass (aData->Root()); | |
030ba648 | 109 | if(aDoc->EmptyLabelsSavingMode()) |
110 | myEmptyLabels.Clear(); // | |
7fd59977 | 111 | |
112 | // 1. Write info section (including types table) | |
4ff92abe | 113 | WriteInfoSection (aDoc, theOStream); |
114 | ||
7fd59977 | 115 | myTypesMap.Clear(); |
15e8b082 M |
116 | if (IsError()) |
117 | { | |
118 | SetStoreStatus(PCDM_SS_Info_Section_Error); | |
119 | return; | |
120 | } | |
7fd59977 | 121 | |
7fd59977 | 122 | |
7fd59977 | 123 | |
124 | // 2. Write the Table of Contents of Sections | |
4ff92abe | 125 | BinLDrivers_VectorOfDocumentSection::Iterator anIterS (mySections); |
126 | for (; anIterS.More(); anIterS.Next()) | |
127 | anIterS.ChangeValue().WriteTOC (theOStream); | |
7fd59977 | 128 | |
4ff92abe | 129 | // Shapes Section is the last one, it indicates the end of the table. |
130 | BinLDrivers_DocumentSection aShapesSection (SHAPESECTION_POS, | |
131 | Standard_False); | |
132 | aShapesSection.WriteTOC (theOStream); | |
7fd59977 | 133 | |
134 | // 3. Write document contents | |
4ff92abe | 135 | // (Storage data to the stream) |
136 | myRelocTable.Clear(); | |
137 | myPAtt.Init(); | |
7fd59977 | 138 | |
4ff92abe | 139 | // Write Doc structure |
140 | WriteSubTree (aData->Root(), theOStream); // Doc is written | |
7fd59977 | 141 | |
142 | // 4. Write Shapes section | |
4ff92abe | 143 | WriteShapeSection (aShapesSection, theOStream); |
144 | ||
145 | // Write application-defined sections | |
146 | for (anIterS.Init (mySections); anIterS.More(); anIterS.Next()) { | |
147 | BinLDrivers_DocumentSection& aSection = anIterS.ChangeValue(); | |
148 | const Standard_Size aSectionOffset = (Standard_Size) theOStream.tellp(); | |
149 | WriteSection (aSection.Name(), aDoc, theOStream); | |
150 | aSection.Write (theOStream, aSectionOffset); | |
151 | } | |
152 | ||
153 | // End of processing: close structures and check the status | |
154 | myPAtt.Destroy(); // free buffer | |
155 | myEmptyLabels.Clear(); | |
156 | myMapUnsupported.Clear(); | |
157 | ||
158 | if (!myRelocTable.Extent()) { | |
159 | // No objects written | |
0797d9d3 | 160 | #ifdef OCCT_DEBUG |
4ff92abe | 161 | WriteMessage ("BinLDrivers_DocumentStorageDriver, no objects written"); |
7fd59977 | 162 | #endif |
4ff92abe | 163 | SetIsError(Standard_True); |
164 | SetStoreStatus(PCDM_SS_No_Obj); | |
7fd59977 | 165 | } |
4ff92abe | 166 | myRelocTable.Clear(); |
7fd59977 | 167 | |
4ff92abe | 168 | if (!theOStream) { |
7fd59977 | 169 | // A problem with the stream |
0797d9d3 | 170 | #ifdef OCCT_DEBUG |
171 | TCollection_ExtendedString anErrorStr ("Error: "); | |
172 | WriteMessage (anErrorStr + "BinLDrivers_DocumentStorageDriver, Problem with the file stream, rdstate=" | |
4ff92abe | 173 | + (Standard_Integer )theOStream.rdstate()); |
7fd59977 | 174 | #endif |
15e8b082 | 175 | SetIsError(Standard_True); |
566f8441 | 176 | SetStoreStatus(PCDM_SS_WriteFailure); |
7fd59977 | 177 | } |
178 | ||
179 | } | |
180 | } | |
181 | ||
182 | //======================================================================= | |
183 | //function : UnsupportedAttrMsg | |
9293178b | 184 | //purpose : |
7fd59977 | 185 | //======================================================================= |
186 | ||
187 | void BinLDrivers_DocumentStorageDriver::UnsupportedAttrMsg | |
188 | (const Handle(Standard_Type)& theType) | |
189 | { | |
0797d9d3 | 190 | #ifdef OCCT_DEBUG |
7fd59977 | 191 | static TCollection_ExtendedString aMsg |
192 | ("BinDrivers_DocumentStorageDriver: warning: attribute driver for type "); | |
193 | #endif | |
194 | if (!myMapUnsupported.Contains(theType)) { | |
195 | myMapUnsupported.Add(theType); | |
0797d9d3 | 196 | #ifdef OCCT_DEBUG |
7fd59977 | 197 | WriteMessage (aMsg + theType->Name() + " not found"); |
198 | #endif | |
199 | } | |
200 | } | |
201 | ||
202 | //======================================================================= | |
203 | //function : WriteSubTree | |
204 | //purpose : | |
205 | //======================================================================= | |
206 | ||
207 | void BinLDrivers_DocumentStorageDriver::WriteSubTree | |
208 | (const TDF_Label& theLabel, | |
209 | Standard_OStream& theOS) | |
210 | { | |
211 | // Skip empty labels | |
212 | if (!myEmptyLabels.IsEmpty() && myEmptyLabels.First() == theLabel) { | |
213 | myEmptyLabels.RemoveFirst(); | |
214 | return; | |
215 | } | |
216 | ||
217 | // Write label header: tag | |
218 | Standard_Integer aTag = theLabel.Tag(); | |
219 | #if DO_INVERSE | |
220 | aTag = InverseInt (aTag); | |
221 | #endif | |
222 | theOS.write ((char*)&aTag, sizeof(Standard_Integer)); | |
223 | ||
224 | // Write attributes | |
225 | TDF_AttributeIterator itAtt (theLabel); | |
226 | for ( ; itAtt.More() && theOS; itAtt.Next()) { | |
227 | const Handle(TDF_Attribute)& tAtt = itAtt.Value(); | |
228 | const Handle(Standard_Type)& aType = tAtt->DynamicType(); | |
229 | // Get type ID and driver | |
230 | Handle(BinMDF_ADriver) aDriver; | |
231 | const Standard_Integer aTypeId = myDrivers->GetDriver (aType,aDriver); | |
232 | if (aTypeId > 0) { | |
233 | // Add source to relocation table | |
234 | const Standard_Integer anId = myRelocTable.Add (tAtt); | |
235 | ||
236 | // Create and fill data item | |
237 | myPAtt.SetTypeId (aTypeId); | |
238 | myPAtt.SetId (anId); | |
239 | aDriver->Paste (tAtt, myPAtt, myRelocTable); | |
240 | ||
241 | // Write data to the stream -->!!! | |
242 | theOS << myPAtt; | |
243 | } | |
0797d9d3 | 244 | #ifdef OCCT_DEBUG |
7fd59977 | 245 | else |
246 | UnsupportedAttrMsg (aType); | |
247 | #endif | |
248 | } | |
249 | if (!theOS) { | |
250 | // Problem with the stream | |
251 | return; | |
252 | } | |
253 | ||
254 | // Write the end attributes list marker | |
255 | BinLDrivers_Marker anEndAttr = BinLDrivers_ENDATTRLIST; | |
256 | #if DO_INVERSE | |
257 | anEndAttr = (BinLDrivers_Marker) InverseInt (anEndAttr); | |
258 | #endif | |
259 | theOS.write ((char*)&anEndAttr, sizeof(anEndAttr)); | |
260 | ||
261 | // Process sub-labels | |
262 | TDF_ChildIterator itChld (theLabel); | |
263 | for ( ; itChld.More(); itChld.Next()) | |
264 | { | |
265 | const TDF_Label& aChildLab = itChld.Value(); | |
266 | WriteSubTree (aChildLab, theOS); | |
267 | } | |
268 | ||
269 | // Write the end label marker | |
270 | BinLDrivers_Marker anEndLabel = BinLDrivers_ENDLABEL; | |
271 | #if DO_INVERSE | |
272 | anEndLabel = (BinLDrivers_Marker) InverseInt (anEndLabel); | |
273 | #endif | |
274 | theOS.write ((char*)&anEndLabel, sizeof(anEndLabel)); | |
275 | ||
276 | } | |
277 | ||
7fd59977 | 278 | //======================================================================= |
279 | //function : AttributeDrivers | |
280 | //purpose : | |
281 | //======================================================================= | |
282 | ||
283 | Handle(BinMDF_ADriverTable) BinLDrivers_DocumentStorageDriver::AttributeDrivers | |
284 | (const Handle(CDM_MessageDriver)& theMessageDriver) | |
285 | { | |
286 | return BinLDrivers::AttributeDrivers (theMessageDriver); | |
287 | } | |
288 | ||
289 | //======================================================================= | |
290 | //function : FirstPassSubTree | |
291 | //purpose : | |
292 | //======================================================================= | |
293 | ||
294 | Standard_Boolean BinLDrivers_DocumentStorageDriver::FirstPassSubTree | |
295 | (const TDF_Label& L, | |
296 | TDF_LabelList& ListOfEmptyL) | |
297 | { | |
298 | // are there writable attributes on L ? | |
299 | Standard_Boolean hasAttr = Standard_False; | |
300 | TDF_AttributeIterator itAtt (L); | |
301 | for ( ; itAtt.More(); itAtt.Next()) { | |
302 | const Handle(Standard_Type)& aType = itAtt.Value()->DynamicType(); | |
303 | Handle(BinMDF_ADriver) aDriver; | |
304 | // do not rely on a value returned by GetDriver here, because | |
305 | // the IDs have not yet been assigned to the types | |
306 | myDrivers->GetDriver (aType, aDriver); | |
307 | if (!aDriver.IsNull()) { | |
308 | hasAttr = Standard_True; | |
309 | myTypesMap.Add (aType); | |
310 | } | |
0797d9d3 | 311 | #ifdef OCCT_DEBUG |
7fd59977 | 312 | else |
313 | UnsupportedAttrMsg (aType); | |
314 | #endif | |
315 | } | |
316 | ||
317 | // are there writable attributes on sub-labels ? | |
318 | Standard_Boolean hasChildAttr = Standard_False; | |
319 | TDF_LabelList emptyChildrenList; | |
320 | TDF_ChildIterator itChld (L); | |
321 | for ( ; itChld.More(); itChld.Next()) | |
322 | { | |
323 | if (FirstPassSubTree (itChld.Value(), emptyChildrenList)) | |
324 | emptyChildrenList.Append( itChld.Value() ); | |
325 | else | |
326 | hasChildAttr = Standard_True; | |
327 | } | |
328 | ||
329 | Standard_Boolean isEmpty = !(hasAttr || hasChildAttr); | |
330 | ||
331 | if (!isEmpty) | |
332 | ListOfEmptyL.Append( emptyChildrenList ); | |
333 | ||
334 | return isEmpty; | |
335 | } | |
336 | ||
337 | //======================================================================= | |
338 | //function : FirstPass | |
339 | //purpose : | |
340 | //======================================================================= | |
341 | ||
342 | void BinLDrivers_DocumentStorageDriver::FirstPass | |
343 | (const TDF_Label& theRoot) | |
344 | { | |
345 | myTypesMap.Clear(); | |
346 | myEmptyLabels.Clear(); | |
347 | ||
348 | if (FirstPassSubTree( theRoot, myEmptyLabels)) | |
349 | myEmptyLabels.Append( theRoot ); | |
350 | ||
351 | myDrivers->AssignIds (myTypesMap); | |
352 | } | |
353 | ||
354 | //======================================================================= | |
355 | //function : WriteInfoSection | |
356 | //purpose : Write info secton using FSD_BinaryFile driver | |
357 | //======================================================================= | |
358 | ||
359 | #define START_TYPES "START_TYPES" | |
360 | #define END_TYPES "END_TYPES" | |
361 | ||
4ff92abe | 362 | void BinLDrivers_DocumentStorageDriver::WriteInfoSection |
363 | (const Handle(CDM_Document)& theDoc, | |
364 | Standard_OStream& theOStream) | |
7fd59977 | 365 | { |
4ff92abe | 366 | // Magic number |
367 | theOStream.write (FSD_BinaryFile::MagicNumber(), strlen(FSD_BinaryFile::MagicNumber())); | |
368 | ||
369 | FSD_FileHeader aHeader; | |
370 | ||
371 | { | |
372 | aHeader.testindian = -1; | |
373 | aHeader.binfo = -1; | |
374 | aHeader.einfo = -1; | |
375 | aHeader.bcomment = -1; | |
376 | aHeader.ecomment = -1; | |
377 | aHeader.btype = -1; | |
378 | aHeader.etype = -1; | |
379 | aHeader.broot = -1; | |
380 | aHeader.eroot = -1; | |
381 | aHeader.bref = -1; | |
382 | aHeader.eref = -1; | |
383 | aHeader.bdata = -1; | |
384 | aHeader.edata = -1; | |
385 | } | |
386 | ||
387 | // aHeader.testindian | |
388 | { | |
389 | union { | |
390 | char ti2[4]; | |
391 | Standard_Integer aResult; | |
392 | } aWrapUnion; | |
393 | ||
394 | aWrapUnion.ti2[0] = 1; | |
395 | aWrapUnion.ti2[1] = 2; | |
396 | aWrapUnion.ti2[2] = 3; | |
397 | aWrapUnion.ti2[3] = 4; | |
398 | ||
399 | aHeader.testindian = aWrapUnion.aResult; | |
7fd59977 | 400 | } |
401 | ||
4ff92abe | 402 | // info section |
403 | aHeader.binfo = (Standard_Integer)theOStream.tellp(); | |
404 | ||
405 | // header section | |
406 | aHeader.einfo = aHeader.binfo + FSD_BinaryFile::WriteHeader (theOStream, aHeader, Standard_True); | |
407 | ||
408 | // add format | |
409 | Handle(Storage_Data) theData = new Storage_Data; | |
410 | PCDM_ReadWriter::WriteFileFormat (theData, theDoc); | |
411 | PCDM_ReadWriter::Writer()->WriteReferenceCounter (theData, theDoc); | |
412 | PCDM_ReadWriter::Writer()->WriteReferences (theData, theDoc, myFileName); | |
413 | PCDM_ReadWriter::Writer()->WriteExtensions (theData, theDoc); | |
414 | PCDM_ReadWriter::Writer()->WriteVersion (theData, theDoc); | |
415 | ||
416 | // add the types table | |
417 | theData->AddToUserInfo(START_TYPES); | |
418 | for (Standard_Integer i = 1; i <= myTypesMap.Extent(); i++) | |
7fd59977 | 419 | { |
4ff92abe | 420 | Handle(BinMDF_ADriver) aDriver = myDrivers->GetDriver(i); |
421 | if (!aDriver.IsNull()) | |
422 | { | |
423 | const TCollection_AsciiString& aTypeName = aDriver->TypeName(); | |
424 | theData->AddToUserInfo (aTypeName); | |
7fd59977 | 425 | } |
7fd59977 | 426 | } |
4ff92abe | 427 | theData->AddToUserInfo(END_TYPES); |
428 | ||
429 | Standard_Integer aObjNb = 1; | |
430 | Standard_Integer aShemaVer = 1; | |
431 | ||
432 | aHeader.einfo += FSD_BinaryFile::WriteInfo (theOStream, | |
433 | aObjNb, | |
434 | BinLDrivers::StorageVersion(), | |
435 | Storage_Schema::ICreationDate(), | |
6fe96f84 | 436 | "", // schema name |
4ff92abe | 437 | aShemaVer, |
438 | theData->ApplicationName(), | |
439 | theData->ApplicationVersion(), | |
440 | theData->DataType(), | |
441 | theData->UserInfo(), | |
442 | Standard_True); // only count the size of the section | |
443 | ||
444 | // calculate comment section | |
445 | TColStd_SequenceOfExtendedString aComments; | |
446 | theDoc->Comments(aComments); | |
447 | for (Standard_Integer i = 1; i <= aComments.Length(); i++) | |
448 | { | |
449 | theData->AddToComments (aComments(i)); | |
7fd59977 | 450 | } |
4ff92abe | 451 | |
452 | aHeader.bcomment = aHeader.einfo; | |
453 | aHeader.ecomment = aHeader.bcomment + FSD_BinaryFile::WriteComment(theOStream, theData->Comments(), Standard_True); | |
454 | ||
455 | aHeader.edata = aHeader.ecomment; | |
456 | ||
457 | // write header information | |
458 | FSD_BinaryFile::WriteHeader (theOStream, aHeader); | |
459 | ||
460 | // write info section | |
461 | FSD_BinaryFile::WriteInfo (theOStream, | |
462 | aObjNb, | |
463 | BinLDrivers::StorageVersion(), | |
464 | Storage_Schema::ICreationDate(), | |
6fe96f84 | 465 | "", // schema name |
4ff92abe | 466 | aShemaVer, |
467 | theData->ApplicationName(), | |
468 | theData->ApplicationVersion(), | |
469 | theData->DataType(), | |
470 | theData->UserInfo()); | |
471 | ||
472 | // write the comments | |
473 | FSD_BinaryFile::WriteComment(theOStream, theData->Comments()); | |
474 | ||
7fd59977 | 475 | } |
476 | ||
477 | //======================================================================= | |
478 | //function : WriteMessage | |
479 | //purpose : write theMessage to the MessageDriver of the | |
480 | // Application | |
481 | //======================================================================= | |
482 | ||
483 | void BinLDrivers_DocumentStorageDriver::WriteMessage | |
484 | (const TCollection_ExtendedString& theMsg) | |
485 | { | |
486 | if (!myMsgDriver.IsNull()) | |
487 | myMsgDriver->Write (theMsg.ToExtString()); | |
488 | } | |
489 | ||
490 | //======================================================================= | |
491 | //function : AddSection | |
9293178b | 492 | //purpose : |
7fd59977 | 493 | //======================================================================= |
494 | ||
495 | void BinLDrivers_DocumentStorageDriver::AddSection | |
496 | (const TCollection_AsciiString& theName, | |
497 | const Standard_Boolean isPostRead) | |
498 | { | |
499 | mySections.Append (BinLDrivers_DocumentSection (theName, isPostRead)); | |
500 | } | |
501 | ||
502 | //======================================================================= | |
503 | //function : WriteSection | |
9293178b | 504 | //purpose : |
7fd59977 | 505 | //======================================================================= |
506 | ||
507 | void BinLDrivers_DocumentStorageDriver::WriteSection | |
508 | (const TCollection_AsciiString& /*theName*/, | |
857ffd5e | 509 | const Handle(CDM_Document)& /*theDocument*/, |
7fd59977 | 510 | Standard_OStream& /*theOS*/) |
511 | { | |
512 | // empty; should be redefined in subclasses | |
513 | } | |
514 | ||
515 | //======================================================================= | |
516 | //function : WriteShapeSection | |
517 | //purpose : defines WriteShapeSection | |
518 | //======================================================================= | |
519 | void BinLDrivers_DocumentStorageDriver::WriteShapeSection | |
520 | (BinLDrivers_DocumentSection& theSection, | |
521 | Standard_OStream& theOS) | |
522 | { | |
523 | const Standard_Size aShapesSectionOffset = (Standard_Size) theOS.tellp(); | |
524 | theSection.Write (theOS, aShapesSectionOffset); | |
525 | } |