sfx2/source/bastyp/mieclip.cxx

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  28
  29 #include <tools/stream.hxx>
  30 #include <tools/cachestr.hxx>
  31
  32 #include <sot/storage.hxx>
  33 #include <sot/formats.hxx>
  34
  35 #include <sfx2/mieclip.hxx>
  36 #include <sfx2/sfxuno.hxx>
  37
  38 MSE40HTMLClipFormatObj::~MSE40HTMLClipFormatObj()
  39 {
  40     delete pStrm;
  41 }
  42
  43 SvStream* MSE40HTMLClipFormatObj::IsValid( SvStream& rStream )
  44 {
  45     bool bRet = false;
  46     if( pStrm )
  47         delete pStrm, pStrm = 0;
  48
  49     rtl::OString sLine, sVersion;
  50     sal_Int32 nStt = -1, nEnd = -1, nFragStart = -1, nFragEnd = -1;
  51     sal_Int32 nIndex = 0;
  52
  53     rStream.Seek(STREAM_SEEK_TO_BEGIN);
  54     rStream.ResetError();
  55
  56     if( rStream.ReadLine( sLine ) &&
  57         sLine.getToken( 0, ':', nIndex ) == "Version" )
  58     {
  59         sVersion = sLine.copy( nIndex );
  60         while( rStream.ReadLine( sLine ) )
  61         {
  62             nIndex = 0;
  63             rtl::OString sTmp(sLine.getToken(0, ':', nIndex));
  64             if (sTmp.equalsL(RTL_CONSTASCII_STRINGPARAM("StartHTML")))
  65                 nStt = sLine.copy(nIndex).toInt32();
  66             else if (sTmp.equalsL(RTL_CONSTASCII_STRINGPARAM("EndHTML")))
  67                 nEnd = sLine.copy(nIndex).toInt32();
  68             else if (sTmp.equalsL(RTL_CONSTASCII_STRINGPARAM("StartFragment")))
  69                 nFragStart = sLine.copy(nIndex).toInt32();
  70             else if (sTmp.equalsL(RTL_CONSTASCII_STRINGPARAM("EndFragment")))
  71                 nFragEnd = sLine.copy(nIndex).toInt32();
  72             else if (sTmp.equalsL(RTL_CONSTASCII_STRINGPARAM("SourceURL")))
  73                 sBaseURL = S2U(sLine.copy(nIndex));
  74
  75             if (nEnd >= 0 && nStt >= 0 &&
  76                 (sBaseURL.Len() || rStream.Tell() >= static_cast<sal_Size>(nStt)))
  77             {
  78                 bRet = true;
  79                 break;
  80             }
  81         }
  82     }
  83
  84     if( bRet )
  85     {
  86         rStream.Seek( nStt );
  87
  88         pStrm = new SvCacheStream( ( nEnd - nStt < 0x10000l
  89                                         ? nEnd - nStt + 32
  90                                         : 0 ));
  91         *pStrm << rStream;
  92         pStrm->SetStreamSize( nEnd - nStt + 1L );
  93         pStrm->Seek( STREAM_SEEK_TO_BEGIN );
  94         return pStrm;
  95     }
  96
  97     if (nFragStart > 0 && nFragEnd > 0 && nFragEnd > nFragStart)
  98     {
  99         sal_uIntPtr nSize = static_cast<sal_uIntPtr>(nFragEnd - nFragStart + 1);
 100         if (nSize < 0x10000L)
 101         {
 102             rStream.Seek(nFragStart);
 103             pStrm = new SvCacheStream(nSize);
 104             *pStrm << rStream;
 105             pStrm->SetStreamSize(nSize);
 106             pStrm->Seek(STREAM_SEEK_TO_BEGIN);
 107             return pStrm;
 108         }
 109     }
 110
 111     return NULL;
 112 }
 113
 114 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */