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CWS-TOOLING: integrate CWS impress201

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This commit is contained in:
Vladimir Glazunov 2010-10-14 14:49:30 +02:00
commit e21cf551ed
1 changed files with 38 additions and 6 deletions
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44
svtools/source/filter.vcl/filter/filter.cxx
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@ -552,16 +552,48 @@ static BOOL ImpPeekGraphicFormat( SvStream& rStream, String& rFormatExtension, B
if( !bTest || ( rFormatExtension.CompareToAscii( "PCT", 3 ) == COMPARE_EQUAL ) )
{
bSomethingTested = TRUE;
BYTE sBuf[4];
BYTE sBuf[3];
// store number format
sal_uInt16 oldNumberFormat = rStream.GetNumberFormatInt();
sal_uInt32 nOffset; // in ms documents the pict format is used without the first 512 bytes
for ( nOffset = 10; ( nOffset <= 522 ) && ( ( nStreamPos + nOffset + 3 ) <= nStreamLen ); nOffset += 512 )
for ( nOffset = 0; ( nOffset <= 512 ) && ( ( nStreamPos + nOffset + 14 ) <= nStreamLen ); nOffset += 512 )
{
rStream.Seek( nStreamPos + nOffset );
short y1,x1,y2,x2;
bool bdBoxOk = true;
rStream.Seek( nStreamPos + nOffset);
// size of the pict in version 1 pict ( 2bytes) : ignored
rStream.SeekRel(2);
// bounding box (bytes 2 -> 9)
rStream.SetNumberFormatInt(NUMBERFORMAT_INT_BIGENDIAN);
rStream >> y1 >> x1 >> y2 >> x2;
rStream.SetNumberFormatInt(oldNumberFormat); // reset format
if (x1 > x2 || y1 > y2 || // bad bdbox
(x1 == x2 && y1 == y2) || // 1 pixel picture
x2-x1 > 2048 || y2-y1 > 2048 ) // picture anormaly big
bdBoxOk = false;
// read version op
rStream.Read( sBuf,3 );
if ( sBuf[ 0 ] == 0x00 && sBuf[ 1 ] == 0x11 && ( sBuf[ 2 ] == 0x01 || sBuf[ 2 ] == 0x02 ) )
// see http://developer.apple.com/legacy/mac/library/documentation/mac/pdf/Imaging_With_QuickDraw/Appendix_A.pdf
// normal version 2 - page A23 and A24
if ( sBuf[ 0 ] == 0x00 && sBuf[ 1 ] == 0x11 && sBuf[ 2 ] == 0x02)
{
rFormatExtension = UniString::CreateFromAscii( "PCT", 3 );
return TRUE;
rFormatExtension = UniString::CreateFromAscii( "PCT", 3 );
return TRUE;
}
// normal version 1 - page A25
else if (sBuf[ 0 ] == 0x11 && sBuf[ 1 ] == 0x01 && bdBoxOk) {
rFormatExtension = UniString::CreateFromAscii( "PCT", 3 );
return TRUE;
}
// previous code kept in order to do not break any compatibility
// probably eroneous
else if ( sBuf[ 0 ] == 0x00 && sBuf[ 1 ] == 0x11 && sBuf[ 2 ] == 0x01 && bdBoxOk)
{
rFormatExtension = UniString::CreateFromAscii( "PCT", 3 );
return TRUE;
}
}
}