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synced 2025-09-03 14:10:33 +03:00
0026229: Add the possibility in OCAF to open/save a document from/to a stream object
TDocStd_Application class extended to open/save a document of XmlOcaf and BinOcaf format from/to standard SEEKABLE stream object which should support SEEK functionality. Open and SaveAs DRAW commands got new additional argument "-stream" to turn on using of stream functionality. The main changes for BinOcaf format applied in: FSD_BinaryFile class (static method using standard stream added) BinLDrivers_DocumentRetrievalDriver and BinLDrivers_DocumentStorageDriver classes use standard stream object as an argument The main changes for XmlOcaf format applied in: LDOMParser and LDOM_XmlWriter classes use standard stream object as an argument Unused class FSD_Archive and its siblings removed from MFC samples.
This commit is contained in:
ibs
bugmaster
@@ -26,6 +26,7 @@
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#include <CDM_MessageDriver.hxx>
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#include <FSD_BinaryFile.hxx>
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#include <FSD_FileHeader.hxx>
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#include <OSD_OpenFile.hxx>
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#include <PCDM_ReadWriter.hxx>
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#include <Standard_ErrorHandler.hxx>
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#include <Standard_Type.hxx>
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@@ -78,19 +79,39 @@ void BinLDrivers_DocumentStorageDriver::Write
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SetIsError(Standard_False);
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SetStoreStatus(PCDM_SS_OK);
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myMsgDriver = theDocument -> Application() -> MessageDriver();
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myFileName = theFileName;
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std::ofstream aFileStream;
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OSD_OpenStream (aFileStream, theFileName, std::ios::out | std::ios::binary);
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if (aFileStream.is_open() && aFileStream.good())
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{
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Write (theDocument, aFileStream);
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}
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else
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{
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SetIsError (Standard_True);
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SetStoreStatus(PCDM_SS_WriteFailure);
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}
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}
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//=======================================================================
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//function : Write
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//purpose :
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//=======================================================================
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void BinLDrivers_DocumentStorageDriver::Write (const Handle(CDM_Document)& theDoc, Standard_OStream& theOStream)
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{
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myMsgDriver = theDoc->Application()->MessageDriver();
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myMapUnsupported.Clear();
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Handle(TDocStd_Document) aDoc =
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Handle(TDocStd_Document)::DownCast(theDocument);
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Handle(TDocStd_Document)::DownCast(theDoc);
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if (aDoc.IsNull()) {
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SetIsError(Standard_True);
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SetStoreStatus(PCDM_SS_Doc_IsNull);
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}
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else {
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// Open the file
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TCollection_AsciiString aFileName (theFileName);
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// First pass: collect empty labels, assign IDs to the types
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if (myDrivers.IsNull())
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myDrivers = AttributeDrivers (myMsgDriver);
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@@ -98,7 +119,8 @@ void BinLDrivers_DocumentStorageDriver::Write
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FirstPass (aData->Root());
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// 1. Write info section (including types table)
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WriteInfoSection(theDocument, aFileName);
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WriteInfoSection (aDoc, theOStream);
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myTypesMap.Clear();
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if (IsError())
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{
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@@ -106,73 +128,58 @@ void BinLDrivers_DocumentStorageDriver::Write
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return;
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}
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#if defined(_WIN32)
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ofstream anOS ((const wchar_t*) theFileName.ToExtString(), ios::in | ios::binary | ios::ate);
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#elif !defined(IRIX) // 10.10.2005
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ofstream anOS (aFileName.ToCString(), ios::in | ios::binary | ios::ate);
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#else
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ofstream anOS (aFileName.ToCString(), ios::ate);
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//ofstream anOS (aFileName.ToCString(), ios::out| ios::binary | ios::ate);
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#endif
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#ifdef OCCT_DEBUG
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const Standard_Integer aP = (Standard_Integer) anOS.tellp();
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cout << "POS = " << aP <<endl;
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#endif
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//#endif
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if (anOS) {
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// 2. Write the Table of Contents of Sections
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BinLDrivers_VectorOfDocumentSection::Iterator anIterS (mySections);
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for (; anIterS.More(); anIterS.Next())
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anIterS.ChangeValue().WriteTOC (anOS);
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BinLDrivers_VectorOfDocumentSection::Iterator anIterS (mySections);
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for (; anIterS.More(); anIterS.Next())
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anIterS.ChangeValue().WriteTOC (theOStream);
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// Shapes Section is the last one, it indicates the end of the table.
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BinLDrivers_DocumentSection aShapesSection (SHAPESECTION_POS,
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Standard_False);
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aShapesSection.WriteTOC (anOS);
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// Shapes Section is the last one, it indicates the end of the table.
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BinLDrivers_DocumentSection aShapesSection (SHAPESECTION_POS,
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Standard_False);
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aShapesSection.WriteTOC (theOStream);
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// 3. Write document contents
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// (Storage data to the stream)
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myRelocTable.Clear();
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myPAtt.Init();
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// (Storage data to the stream)
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myRelocTable.Clear();
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myPAtt.Init();
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// Write Doc structure
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WriteSubTree (aData->Root(), anOS); // Doc is written
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// Write Doc structure
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WriteSubTree (aData->Root(), theOStream); // Doc is written
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// 4. Write Shapes section
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WriteShapeSection(aShapesSection, anOS);
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WriteShapeSection (aShapesSection, theOStream);
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// Write application-defined sections
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for (anIterS.Init (mySections); anIterS.More(); anIterS.Next()) {
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BinLDrivers_DocumentSection& aSection = anIterS.ChangeValue();
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const Standard_Size aSectionOffset = (Standard_Size) anOS.tellp();
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WriteSection (aSection.Name(), theDocument, anOS);
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aSection.Write (anOS, aSectionOffset);
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}
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// End of processing: close structures and check the status
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myPAtt.Destroy(); // free buffer
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myEmptyLabels.Clear();
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myMapUnsupported.Clear();
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if (!myRelocTable.Extent()) {
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// No objects written
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#ifdef OCCT_DEBUG
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WriteMessage ("BinLDrivers_DocumentStorageDriver, no objects written");
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#endif
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SetIsError(Standard_True);
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SetStoreStatus(PCDM_SS_No_Obj);
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}
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myRelocTable.Clear();
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// Write application-defined sections
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for (anIterS.Init (mySections); anIterS.More(); anIterS.Next()) {
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BinLDrivers_DocumentSection& aSection = anIterS.ChangeValue();
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const Standard_Size aSectionOffset = (Standard_Size) theOStream.tellp();
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WriteSection (aSection.Name(), aDoc, theOStream);
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aSection.Write (theOStream, aSectionOffset);
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}
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if (!anOS) {
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// End of processing: close structures and check the status
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myPAtt.Destroy(); // free buffer
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myEmptyLabels.Clear();
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myMapUnsupported.Clear();
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if (!myRelocTable.Extent()) {
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// No objects written
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#ifdef OCCT_DEBUG
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WriteMessage ("BinLDrivers_DocumentStorageDriver, no objects written");
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#endif
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SetIsError(Standard_True);
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SetStoreStatus(PCDM_SS_No_Obj);
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}
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myRelocTable.Clear();
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if (!theOStream) {
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// A problem with the stream
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#ifdef OCCT_DEBUG
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TCollection_ExtendedString anErrorStr ("Error: ");
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WriteMessage (anErrorStr + "BinLDrivers_DocumentStorageDriver, Problem with the file stream, rdstate="
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+ (Standard_Integer )anOS.rdstate());
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+ (Standard_Integer )theOStream.rdstate());
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#endif
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SetIsError(Standard_True);
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SetStoreStatus(PCDM_SS_WriteFailure);
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@@ -361,77 +368,119 @@ void BinLDrivers_DocumentStorageDriver::FirstPass
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#define START_TYPES "START_TYPES"
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#define END_TYPES "END_TYPES"
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void BinLDrivers_DocumentStorageDriver::WriteInfoSection
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(const Handle(CDM_Document)& theDocument,
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const TCollection_AsciiString& theFileName)
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void BinLDrivers_DocumentStorageDriver::WriteInfoSection
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(const Handle(CDM_Document)& theDoc,
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Standard_OStream& theOStream)
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{
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FSD_BinaryFile aFileDriver;
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if (aFileDriver.Open( theFileName, Storage_VSWrite ) != Storage_VSOk) {
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WriteMessage (TCollection_ExtendedString("Error: Cannot open file ") +
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theFileName);
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SetIsError(Standard_True);
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return;
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}
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// Magic number
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theOStream.write (FSD_BinaryFile::MagicNumber(), strlen(FSD_BinaryFile::MagicNumber()));
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FSD_FileHeader aHeader;
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if (aFileDriver.BeginWriteInfoSection() == Storage_VSOk)
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{
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// add format
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Handle(Storage_Data) theData = new Storage_Data;
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PCDM_ReadWriter::WriteFileFormat( theData, theDocument );
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PCDM_ReadWriter::Writer()->WriteReferenceCounter(theData,theDocument);
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PCDM_ReadWriter::Writer()->WriteReferences(theData,theDocument,theFileName);
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PCDM_ReadWriter::Writer()->WriteExtensions(theData,theDocument);
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PCDM_ReadWriter::Writer()->WriteVersion(theData,theDocument);
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aHeader.testindian = -1;
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aHeader.binfo = -1;
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aHeader.einfo = -1;
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aHeader.bcomment = -1;
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aHeader.ecomment = -1;
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aHeader.btype = -1;
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aHeader.etype = -1;
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aHeader.broot = -1;
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aHeader.eroot = -1;
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aHeader.bref = -1;
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aHeader.eref = -1;
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aHeader.bdata = -1;
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aHeader.edata = -1;
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}
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// add the types table
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theData->AddToUserInfo(START_TYPES);
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Standard_Integer i;
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for (i = 1; i <= myTypesMap.Extent(); i++) {
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Handle(BinMDF_ADriver) aDriver = myDrivers->GetDriver(i);
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if (!aDriver.IsNull()) {
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const TCollection_AsciiString& aTypeName = aDriver->TypeName();
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theData->AddToUserInfo(aTypeName);
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}
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// aHeader.testindian
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{
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union {
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char ti2[4];
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Standard_Integer aResult;
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} aWrapUnion;
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aWrapUnion.ti2[0] = 1;
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aWrapUnion.ti2[1] = 2;
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aWrapUnion.ti2[2] = 3;
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aWrapUnion.ti2[3] = 4;
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aHeader.testindian = aWrapUnion.aResult;
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}
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// info section
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aHeader.binfo = (Standard_Integer)theOStream.tellp();
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// header section
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aHeader.einfo = aHeader.binfo + FSD_BinaryFile::WriteHeader (theOStream, aHeader, Standard_True);
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// add format
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Handle(Storage_Data) theData = new Storage_Data;
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PCDM_ReadWriter::WriteFileFormat (theData, theDoc);
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PCDM_ReadWriter::Writer()->WriteReferenceCounter (theData, theDoc);
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PCDM_ReadWriter::Writer()->WriteReferences (theData, theDoc, myFileName);
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PCDM_ReadWriter::Writer()->WriteExtensions (theData, theDoc);
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PCDM_ReadWriter::Writer()->WriteVersion (theData, theDoc);
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// add the types table
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theData->AddToUserInfo(START_TYPES);
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for (Standard_Integer i = 1; i <= myTypesMap.Extent(); i++)
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{
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Handle(BinMDF_ADriver) aDriver = myDrivers->GetDriver(i);
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if (!aDriver.IsNull())
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{
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const TCollection_AsciiString& aTypeName = aDriver->TypeName();
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theData->AddToUserInfo (aTypeName);
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}
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theData->AddToUserInfo(END_TYPES);
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// add document comments
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TColStd_SequenceOfExtendedString aComments;
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theDocument->Comments(aComments);
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for (i = 1; i <= aComments.Length(); i++)
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theData->AddToComments(aComments(i));
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// Info
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aFileDriver.WriteInfo
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(1, // nbObj
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BinLDrivers::StorageVersion(),
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Storage_Schema::ICreationDate(),
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TCollection_AsciiString(SchemaName(),'?'),
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1, // schemaVersion
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theData->ApplicationName(),
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theData->ApplicationVersion(),
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theData->DataType(),
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theData->UserInfo()
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);
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// we write a complete header section: info and comments
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aFileDriver.EndWriteInfoSection();
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aFileDriver.BeginWriteCommentSection();
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aFileDriver.WriteComment(theData->Comments());// <=== !!! szy - it was missed
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aFileDriver.EndWriteCommentSection();
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// here the location of info and comment sections is written
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aFileDriver.EndWriteDataSection();
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}
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else {
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WriteMessage(TCollection_ExtendedString("Error: Problem writing header "
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"into file ") + theFileName);
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SetIsError(Standard_True);
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theData->AddToUserInfo(END_TYPES);
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Standard_Integer aObjNb = 1;
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Standard_Integer aShemaVer = 1;
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aHeader.einfo += FSD_BinaryFile::WriteInfo (theOStream,
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aObjNb,
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BinLDrivers::StorageVersion(),
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Storage_Schema::ICreationDate(),
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TCollection_AsciiString(SchemaName(),'?'),
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aShemaVer,
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theData->ApplicationName(),
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theData->ApplicationVersion(),
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theData->DataType(),
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theData->UserInfo(),
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Standard_True); // only count the size of the section
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// calculate comment section
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TColStd_SequenceOfExtendedString aComments;
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theDoc->Comments(aComments);
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for (Standard_Integer i = 1; i <= aComments.Length(); i++)
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{
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theData->AddToComments (aComments(i));
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}
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#ifdef OCCT_DEBUG
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const Standard_Integer aP = (Standard_Integer) aFileDriver.Tell();
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cout << "POS = " << aP <<endl;
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#endif
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aFileDriver.Close();
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aHeader.bcomment = aHeader.einfo;
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aHeader.ecomment = aHeader.bcomment + FSD_BinaryFile::WriteComment(theOStream, theData->Comments(), Standard_True);
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aHeader.edata = aHeader.ecomment;
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// write header information
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FSD_BinaryFile::WriteHeader (theOStream, aHeader);
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// write info section
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FSD_BinaryFile::WriteInfo (theOStream,
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aObjNb,
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BinLDrivers::StorageVersion(),
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Storage_Schema::ICreationDate(),
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TCollection_AsciiString(SchemaName(),'?'),
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aShemaVer,
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theData->ApplicationName(),
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theData->ApplicationVersion(),
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theData->DataType(),
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theData->UserInfo());
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// write the comments
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FSD_BinaryFile::WriteComment(theOStream, theData->Comments());
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}
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//=======================================================================
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