diff options
Diffstat (limited to 'svtools/source/filter.vcl/wmf/wmfwr.cxx')
| -rw-r--r-- | svtools/source/filter.vcl/wmf/wmfwr.cxx | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/svtools/source/filter.vcl/wmf/wmfwr.cxx b/svtools/source/filter.vcl/wmf/wmfwr.cxx index 30d4ff06c0d2..c4f53046c29a 100644 --- a/svtools/source/filter.vcl/wmf/wmfwr.cxx +++ b/svtools/source/filter.vcl/wmf/wmfwr.cxx @@ -34,6 +34,7 @@ #include <vcl/salbtype.hxx> #include "wmfwr.hxx" #include <unotools/fontcvt.hxx> +#include "emfwr.hxx" #include <rtl/crc.h> #include <rtl/tencinfo.h> #include <tools/tenccvt.hxx> @@ -1875,6 +1876,7 @@ BOOL WMFWriter::WriteWMF( const GDIMetaFile& rMTF, SvStream& rTargetStream, { WMFWriterAttrStackMember * pAt; + bEmbedEMF = TRUE; bStatus=TRUE; pConvert = 0; pVirDev = new VirtualDevice; @@ -1938,6 +1940,8 @@ BOOL WMFWriter::WriteWMF( const GDIMetaFile& rMTF, SvStream& rTargetStream, CountActionsAndBitmaps(rMTF); WriteHeader(rMTF,bPlaceable); + if( bEmbedEMF ) + WriteEmbeddedEMF( rMTF ); WMFRecord_SetWindowOrg(Point(0,0)); WMFRecord_SetWindowExt(rMTF.GetPrefSize()); WMFRecord_SetBkMode( TRUE ); @@ -2016,3 +2020,80 @@ USHORT WMFWriter::CalcSaveTargetMapMode(MapMode& rMapMode, return nDivisor; } + +// ------------------------------------------------------------------------ + +void WMFWriter::WriteEmbeddedEMF( const GDIMetaFile& rMTF ) +{ + EMFWriter aEMFWriter; + SvMemoryStream aStream; + + if( aEMFWriter.WriteEMF( rMTF, aStream ) ) + { + sal_Size nTotalSize = aStream.Tell(); + if( nTotalSize > SAL_MAX_UINT32 ) + return; + aStream.Seek( 0 ); + sal_uInt32 nRemainingSize = static_cast< sal_uInt32 >( nTotalSize ); + sal_uInt32 nRecCounts = ( (nTotalSize - 1) / 0x2000 ) + 1; + sal_uInt16 nCheckSum = 0, nWord; + + sal_uInt32 nPos = 0; + + while( nPos + 1 < nTotalSize ) + { + aStream >> nWord; + nCheckSum ^= nWord; + nPos += 2; + } + + nCheckSum = static_cast< sal_uInt16 >( nCheckSum * -1 ); + + aStream.Seek( 0 ); + while( nRemainingSize > 0 ) + { + sal_uInt32 nCurSize; + if( nRemainingSize > 0x2000 ) + { + nCurSize = 0x2000; + nRemainingSize -= 0x2000; + } + else + { + nCurSize = nRemainingSize; + nRemainingSize = 0; + } + WriteEMFRecord( aStream, + nCurSize, + nRemainingSize, + nTotalSize, + nRecCounts, + nCheckSum ); + nCheckSum = 0; + } + } +} + +// ------------------------------------------------------------------------ + +void WMFWriter::WriteEMFRecord( SvMemoryStream& rStream, sal_uInt32 nCurSize, sal_uInt32 nRemainingSize, + sal_uInt32 nTotalSize, sal_uInt32 nRecCounts, sal_uInt16 nCheckSum ) +{ + // according to http://msdn.microsoft.com/en-us/library/dd366152%28PROT.13%29.aspx + WriteRecordHeader( 0, W_META_ESCAPE ); + *pWMF << (sal_uInt16)W_MFCOMMENT // same as META_ESCAPE_ENHANCED_METAFILE + << (sal_uInt16)( nCurSize + 34 ) // we will always have a 34 byte escape header: + << (sal_uInt32) 0x43464D57 // WMFC + << (sal_uInt32) 0x00000001 // Comment type + << (sal_uInt32) 0x00010000 // version + << nCheckSum // check sum + << (sal_uInt32) 0 // flags = 0 + << nRecCounts // total number of records + << nCurSize // size of this record's data + << nRemainingSize // remaining size of data in following records, missing in MSDN documentation + << nTotalSize; // total size of EMF stream + + pWMF->Write( static_cast< const sal_Char* >( rStream.GetData() ) + rStream.Tell(), nCurSize ); + rStream.SeekRel( nCurSize ); + UpdateRecordHeader(); +} |