#include <BinMDF_ADriver.hxx>
#include <BinMDF_ADriverTable.hxx>
#include <BinObjMgt_Persistent.hxx>
+#include <BinObjMgt_Position.hxx>
#include <CDM_Application.hxx>
#include <CDM_Document.hxx>
#include <Message_Messenger.hxx>
IMPLEMENT_STANDARD_RTTIEXT(BinLDrivers_DocumentStorageDriver,PCDM_StorageDriver)
#define SHAPESECTION_POS (Standard_CString)"SHAPE_SECTION_POS:"
+#define ENDSECTION_POS (Standard_CString)":"
//=======================================================================
//function : BinLDrivers_DocumentStorageDriver
//purpose : Constructor
//=======================================================================
-BinLDrivers_DocumentStorageDriver::BinLDrivers_DocumentStorageDriver ()
+BinLDrivers_DocumentStorageDriver::BinLDrivers_DocumentStorageDriver()
{
}
{
myMsgDriver = theDoc->Application()->MessageDriver();
myMapUnsupported.Clear();
+ mySizesToWrite.Clear();
- Handle(TDocStd_Document) aDoc =
- Handle(TDocStd_Document)::DownCast(theDoc);
+ Handle(TDocStd_Document) aDoc = Handle(TDocStd_Document)::DownCast (theDoc);
if (aDoc.IsNull()) {
SetIsError(Standard_True);
SetStoreStatus(PCDM_SS_Doc_IsNull);
for (; anIterS.More(); anIterS.Next())
anIterS.ChangeValue().WriteTOC (theOStream, aDocVer);
- // Shapes Section is the last one, it indicates the end of the table.
- BinLDrivers_DocumentSection aShapesSection (SHAPESECTION_POS,
- Standard_False);
- aShapesSection.WriteTOC (theOStream, aDocVer);
+ EnableQuickPartWriting (myMsgDriver, IsQuickPart (aDocVer));
+ BinLDrivers_DocumentSection* aShapesSection = 0;
+ Standard_Boolean aQuickPart = IsQuickPart (aDocVer);
+ if (!aQuickPart)
+ {
+ // Shapes Section is the last one, it indicates the end of the table.
+ aShapesSection = new BinLDrivers_DocumentSection (SHAPESECTION_POS, Standard_False);
+ aShapesSection->WriteTOC (theOStream, aDocVer);
+ }
+ else
+ {
+ // End Section is the last one, it indicates the end of the table.
+ BinLDrivers_DocumentSection anEndSection (ENDSECTION_POS, Standard_False);
+ anEndSection.WriteTOC (theOStream, aDocVer);
+ }
// 3. Write document contents
// (Storage data to the stream)
myRelocTable.Clear();
myPAtt.Init();
+ if (aQuickPart)
+ myPAtt.SetOStream (theOStream); // for writing shapes data into the stream directly
Message_ProgressScope aPS(theRange, "Writing document", 3);
// Write Doc structure
- WriteSubTree (aData->Root(), theOStream, aPS.Next()); // Doc is written
+ WriteSubTree (aData->Root(), theOStream, aQuickPart, aPS.Next()); // Doc is written
if (!aPS.More())
{
SetIsError(Standard_True);
}
// 4. Write Shapes section
- WriteShapeSection (aShapesSection, theOStream, aDocVer, aPS.Next());
+ if (!aQuickPart)
+ {
+ WriteShapeSection (*aShapesSection, theOStream, aDocVer, aPS.Next());
+ delete aShapesSection;
+ }
+ else
+ Clear();
+
if (!aPS.More())
{
- SetIsError(Standard_True);
- SetStoreStatus(PCDM_SS_UserBreak);
- return;
+ SetIsError (Standard_True);
+ SetStoreStatus (PCDM_SS_UserBreak);
+ return;
}
// Write application-defined sections
aSection.Write (theOStream, aSectionOffset, aDocVer);
}
+// 5. Write sizes along the file where it is needed for quick part mode
+ if (aQuickPart)
+ WriteSizes (theOStream);
+
// End of processing: close structures and check the status
myPAtt.Destroy(); // free buffer
myEmptyLabels.Clear();
{
#ifdef OCCT_DEBUG
TCollection_ExtendedString aMsg
- ("BinDrivers_DocumentStorageDriver: warning: attribute driver for type ");
+ ("BinLDrivers_DocumentStorageDriver: warning: attribute driver for type ");
#endif
if (!myMapUnsupported.Contains(theType)) {
myMapUnsupported.Add(theType);
void BinLDrivers_DocumentStorageDriver::WriteSubTree
(const TDF_Label& theLabel,
Standard_OStream& theOS,
+ const Standard_Boolean& theQuickPart,
const Message_ProgressRange& theRange)
{
// Skip empty labels
#endif
theOS.write ((char*)&aTag, sizeof(Standard_Integer));
+ Handle(BinObjMgt_Position) aPosition;
+ if (theQuickPart)
+ {
+ aPosition = mySizesToWrite.Append (new BinObjMgt_Position (theOS));
+ aPosition->WriteSize (theOS, Standard_True);
+ }
+
// Write attributes
TDF_AttributeIterator itAtt (theLabel);
for ( ; itAtt.More() && theOS && aPS.More(); itAtt.Next()) {
const Handle(Standard_Type)& aType = tAtt->DynamicType();
// Get type ID and driver
Handle(BinMDF_ADriver) aDriver;
- const Standard_Integer aTypeId = myDrivers->GetDriver (aType,aDriver);
+ const Standard_Integer aTypeId = myDrivers->GetDriver (aType, aDriver);
if (aTypeId > 0) {
// Add source to relocation table
const Standard_Integer anId = myRelocTable.Add (tAtt);
myPAtt.SetTypeId (aTypeId);
myPAtt.SetId (anId);
aDriver->Paste (tAtt, myPAtt, myRelocTable);
+ if (!myPAtt.StreamStart().IsNull())
+ {
+ Handle(BinObjMgt_Position) anAttrPosition = myPAtt.StreamStart();
+ anAttrPosition->StoreSize (theOS);
+ mySizesToWrite.Append (anAttrPosition);
+ }
// Write data to the stream -->!!!
theOS << myPAtt;
SetStoreStatus(PCDM_SS_UserBreak);
return;
}
- WriteSubTree (aChildLab, theOS, aPS.Next());
+ WriteSubTree (aChildLab, theOS, theQuickPart, aPS.Next());
}
-
// Write the end label marker
BinLDrivers_Marker anEndLabel = BinLDrivers_ENDLABEL;
#ifdef DO_INVERSE
- anEndLabel = (BinLDrivers_Marker) InverseInt (anEndLabel);
+ anEndLabel = (BinLDrivers_Marker)InverseInt (anEndLabel);
#endif
- theOS.write ((char*)&anEndLabel, sizeof(anEndLabel));
-
+ theOS.write ((char*)&anEndLabel, sizeof (anEndLabel));
+ if (theQuickPart)
+ aPosition->StoreSize (theOS);
}
//=======================================================================
const Standard_Size aShapesSectionOffset = (Standard_Size) theOS.tellp();
theSection.Write (theOS, aShapesSectionOffset, theDocVer);
}
+
+//=======================================================================
+//function : IsQuickPart
+//purpose : Return true if document should be stored in quick mode for partial reading
+//=======================================================================
+Standard_Boolean BinLDrivers_DocumentStorageDriver::IsQuickPart (const Standard_Integer theVersion) const
+{
+ return theVersion >= TDocStd_FormatVersion_VERSION_12;
+}
+
+//=======================================================================
+//function : Clear
+//purpose :
+//=======================================================================
+void BinLDrivers_DocumentStorageDriver::Clear()
+{
+ // empty; should be redefined in subclasses
+}
+
+
+//=======================================================================
+//function : WriteSizes
+//purpose :
+//=======================================================================
+void BinLDrivers_DocumentStorageDriver::WriteSizes (Standard_OStream& theOS)
+{
+ NCollection_List<Handle(BinObjMgt_Position)>::Iterator anIter (mySizesToWrite);
+ for (; anIter.More() && theOS; anIter.Next())
+ anIter.Value()->WriteSize (theOS);
+ mySizesToWrite.Clear();
+}
projects / occt.git / blobdiff