sfx2/source/bastyp/mieclip.cxx

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  27
  28 // MARKER(update_precomp.py): autogen include statement, do not remove
  29 #include "precompiled_sfx2.hxx"
  30 #include <tools/stream.hxx>
  31 #include <tools/cachestr.hxx>
  32
  33 #include <sot/storage.hxx>
  34 #include <sot/formats.hxx>
  35
  36 #include <sfx2/mieclip.hxx>
  37 #include <sfx2/sfxuno.hxx>
  38
  39 MSE40HTMLClipFormatObj::~MSE40HTMLClipFormatObj()
  40 {
  41     delete pStrm;
  42 }
  43
  44 SvStream* MSE40HTMLClipFormatObj::IsValid( SvStream& rStream )
  45 {
  46     sal_Bool bRet = sal_False;
  47     if( pStrm )
  48         delete pStrm, pStrm = 0;
  49
  50     ByteString sLine, sVersion;
  51     sal_uIntPtr nStt = 0, nEnd = 0;
  52     sal_uInt16 nIndex = 0;
  53
  54     rStream.Seek(STREAM_SEEK_TO_BEGIN);
  55     rStream.ResetError();
  56
  57     if( rStream.ReadLine( sLine ) &&
  58         sLine.GetToken( 0, ':', nIndex ) == "Version" )
  59     {
  60         sVersion = sLine.Copy( nIndex );
  61         while( rStream.ReadLine( sLine ) )
  62         {
  63             nIndex = 0;
  64             ByteString sTmp( sLine.GetToken( 0, ':', nIndex ) );
  65             if( sTmp == "StartHTML" )
  66                 nStt = (sal_uIntPtr)(sLine.Erase( 0, nIndex ).ToInt32());
  67             else if( sTmp == "EndHTML" )
  68                 nEnd = (sal_uIntPtr)(sLine.Erase( 0, nIndex ).ToInt32());
  69             else if( sTmp == "SourceURL" )
  70                 sBaseURL = String(S2U(sLine.Erase( 0, nIndex )));
  71
  72             if( nEnd && nStt &&
  73                 ( sBaseURL.Len() || rStream.Tell() >= nStt ))
  74             {
  75                 bRet = sal_True;
  76                 break;
  77             }
  78         }
  79     }
  80
  81     if( bRet )
  82     {
  83         rStream.Seek( nStt );
  84
  85         pStrm = new SvCacheStream( ( nEnd - nStt < 0x10000l
  86                                         ? nEnd - nStt + 32
  87                                         : 0 ));
  88         *pStrm << rStream;
  89         pStrm->SetStreamSize( nEnd - nStt + 1L );
  90         pStrm->Seek( STREAM_SEEK_TO_BEGIN );
  91     }
  92
  93     return pStrm;
  94 }
  95