Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #include <tools/stream.hxx>
      21             : #include <tools/cachestr.hxx>
      22             : 
      23             : #include <sot/storage.hxx>
      24             : #include <sot/formats.hxx>
      25             : 
      26             : #include <sfx2/mieclip.hxx>
      27             : #include <sfx2/sfxuno.hxx>
      28             : 
      29           0 : MSE40HTMLClipFormatObj::~MSE40HTMLClipFormatObj()
      30             : {
      31           0 :     delete pStrm;
      32           0 : }
      33             : 
      34           0 : SvStream* MSE40HTMLClipFormatObj::IsValid( SvStream& rStream )
      35             : {
      36           0 :     bool bRet = false;
      37           0 :     if( pStrm )
      38           0 :         delete pStrm, pStrm = 0;
      39             : 
      40           0 :     OString sLine, sVersion;
      41           0 :     sal_Int32 nStt = -1, nEnd = -1, nFragStart = -1, nFragEnd = -1;
      42           0 :     sal_Int32 nIndex = 0;
      43             : 
      44           0 :     rStream.Seek(STREAM_SEEK_TO_BEGIN);
      45           0 :     rStream.ResetError();
      46             : 
      47           0 :     if( rStream.ReadLine( sLine ) &&
      48           0 :         sLine.getToken( 0, ':', nIndex ) == "Version" )
      49             :     {
      50           0 :         sVersion = sLine.copy( nIndex );
      51           0 :         while( rStream.ReadLine( sLine ) )
      52             :         {
      53           0 :             nIndex = 0;
      54           0 :             OString sTmp(sLine.getToken(0, ':', nIndex));
      55           0 :             if (sTmp.equalsL(RTL_CONSTASCII_STRINGPARAM("StartHTML")))
      56           0 :                 nStt = sLine.copy(nIndex).toInt32();
      57           0 :             else if (sTmp.equalsL(RTL_CONSTASCII_STRINGPARAM("EndHTML")))
      58           0 :                 nEnd = sLine.copy(nIndex).toInt32();
      59           0 :             else if (sTmp.equalsL(RTL_CONSTASCII_STRINGPARAM("StartFragment")))
      60           0 :                 nFragStart = sLine.copy(nIndex).toInt32();
      61           0 :             else if (sTmp.equalsL(RTL_CONSTASCII_STRINGPARAM("EndFragment")))
      62           0 :                 nFragEnd = sLine.copy(nIndex).toInt32();
      63           0 :             else if (sTmp.equalsL(RTL_CONSTASCII_STRINGPARAM("SourceURL")))
      64           0 :                 sBaseURL = S2U(sLine.copy(nIndex));
      65             : 
      66           0 :             if (nEnd >= 0 && nStt >= 0 &&
      67           0 :                 (sBaseURL.Len() || rStream.Tell() >= static_cast<sal_Size>(nStt)))
      68             :             {
      69           0 :                 bRet = true;
      70           0 :                 break;
      71             :             }
      72           0 :         }
      73             :     }
      74             : 
      75           0 :     if( bRet )
      76             :     {
      77           0 :         rStream.Seek( nStt );
      78             : 
      79           0 :         pStrm = new SvCacheStream( ( nEnd - nStt < 0x10000l
      80           0 :                                         ? nEnd - nStt + 32
      81           0 :                                         : 0 ));
      82           0 :         *pStrm << rStream;
      83           0 :         pStrm->SetStreamSize( nEnd - nStt + 1L );
      84           0 :         pStrm->Seek( STREAM_SEEK_TO_BEGIN );
      85           0 :         return pStrm;
      86             :     }
      87             : 
      88           0 :     if (nFragStart > 0 && nFragEnd > 0 && nFragEnd > nFragStart)
      89             :     {
      90           0 :         sal_uIntPtr nSize = static_cast<sal_uIntPtr>(nFragEnd - nFragStart + 1);
      91           0 :         if (nSize < 0x10000L)
      92             :         {
      93           0 :             rStream.Seek(nFragStart);
      94           0 :             pStrm = new SvCacheStream(nSize);
      95           0 :             *pStrm << rStream;
      96           0 :             pStrm->SetStreamSize(nSize);
      97           0 :             pStrm->Seek(STREAM_SEEK_TO_BEGIN);
      98           0 :             return pStrm;
      99             :         }
     100             :     }
     101             : 
     102           0 :     return NULL;
     103             : }
     104             : 
     105             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */