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 "winmtf.hxx"
      21             : #include "emfwr.hxx"
      22             : #include "wmfwr.hxx"
      23             : #include <vcl/wmf.hxx>
      24             : #include <vcl/gdimetafiletools.hxx>
      25             : #include <comphelper/scopeguard.hxx>
      26             : 
      27           0 : bool ConvertWMFToGDIMetaFile( SvStream & rStreamWMF, GDIMetaFile & rGDIMetaFile, FilterConfigItem* pConfigItem, WMF_EXTERNALHEADER *pExtHeader )
      28             : {
      29             :     sal_uInt32 nMetaType;
      30           0 :     sal_uInt32 nOrgPos = rStreamWMF.Tell();
      31           0 :     sal_uInt16 nOrigNumberFormat = rStreamWMF.GetNumberFormatInt();
      32           0 :     rStreamWMF.SetNumberFormatInt( NUMBERFORMAT_INT_LITTLEENDIAN );
      33           0 :     rStreamWMF.Seek( 0x28 );
      34           0 :     rStreamWMF.ReadUInt32( nMetaType );
      35           0 :     rStreamWMF.Seek( nOrgPos );
      36           0 :     if ( nMetaType == 0x464d4520 )
      37             :     {
      38           0 :         if ( !EnhWMFReader( rStreamWMF, rGDIMetaFile, pConfigItem ).ReadEnhWMF() )
      39           0 :             rStreamWMF.SetError( SVSTREAM_FILEFORMAT_ERROR );
      40             :     }
      41             :     else
      42             :     {
      43           0 :         WMFReader( rStreamWMF, rGDIMetaFile, pConfigItem, pExtHeader ).ReadWMF( );
      44             :     }
      45             : 
      46             : #ifdef DBG_UTIL
      47             :     // #i123216# allow a look at CheckSum and ByteSize for debugging
      48             :     SAL_INFO("vcl.emf", "\t\t\tchecksum: 0x" << std::hex << rGDIMetaFile.GetChecksum() << std::dec);
      49             :     SAL_INFO("vcl.emf", "\t\t\tsize: " << rGDIMetaFile.GetSizeBytes());
      50             : #endif
      51             : 
      52           0 :     rStreamWMF.SetNumberFormatInt( nOrigNumberFormat );
      53           0 :     return !rStreamWMF.GetError();
      54             : }
      55             : 
      56           0 : bool ReadWindowMetafile( SvStream& rStream, GDIMetaFile& rMTF, FilterConfigItem* pFilterConfigItem )
      57             : {
      58           0 :     sal_uInt32 nMetaType(0);
      59           0 :     sal_uInt32 nOrgPos = rStream.Tell();
      60             : 
      61           0 :     sal_uInt16 nOrigNumberFormat = rStream.GetNumberFormatInt();
      62           0 :     rStream.SetNumberFormatInt( NUMBERFORMAT_INT_LITTLEENDIAN );
      63             :     //exception-safe reset nOrigNumberFormat at end of scope
      64             :     const ::comphelper::ScopeGuard aScopeGuard(
      65             :         boost::bind(&SvStream::SetNumberFormatInt, ::boost::ref(rStream),
      66           0 :           nOrigNumberFormat));
      67             : 
      68           0 :     rStream.Seek( 0x28 );
      69           0 :     rStream.ReadUInt32( nMetaType );
      70           0 :     rStream.Seek( nOrgPos );
      71             : 
      72           0 :     if (!rStream.good())
      73           0 :         return false;
      74             : 
      75           0 :     if ( nMetaType == 0x464d4520 )
      76             :     {
      77           0 :         if ( !EnhWMFReader( rStream, rMTF, NULL ).ReadEnhWMF() )
      78           0 :             rStream.SetError( SVSTREAM_FILEFORMAT_ERROR );
      79             :     }
      80             :     else
      81             :     {
      82           0 :         WMFReader( rStream, rMTF, pFilterConfigItem ).ReadWMF();
      83             :     }
      84             : 
      85           0 :     return rStream.good();
      86             : }
      87             : 
      88           0 : bool ConvertGDIMetaFileToWMF( const GDIMetaFile & rMTF, SvStream & rTargetStream,
      89             :                               FilterConfigItem* pConfigItem, bool bPlaceable)
      90             : {
      91           0 :     WMFWriter aWMFWriter;
      92           0 :     GDIMetaFile aGdiMetaFile(rMTF);
      93             : 
      94           0 :     if(usesClipActions(aGdiMetaFile))
      95             :     {
      96             :         // #i121267# It is necessary to prepare the metafile since the export does *not* support
      97             :         // clip regions. This tooling method clips the geometry content of the metafile internally
      98             :         // against it's own clip regions, so that the export is safe to ignore clip regions
      99           0 :         clipMetafileContentAgainstOwnRegions(aGdiMetaFile);
     100             :     }
     101             : 
     102           0 :     return aWMFWriter.WriteWMF( aGdiMetaFile, rTargetStream, pConfigItem, bPlaceable );
     103             : }
     104             : 
     105           0 : bool ConvertGDIMetaFileToEMF( const GDIMetaFile & rMTF, SvStream & rTargetStream,
     106             :                               FilterConfigItem* pConfigItem )
     107             : {
     108           0 :     EMFWriter aEMFWriter(rTargetStream);
     109           0 :     GDIMetaFile aGdiMetaFile(rMTF);
     110             : 
     111           0 :     if(usesClipActions(aGdiMetaFile))
     112             :     {
     113             :         // #i121267# It is necessary to prepare the metafile since the export does *not* support
     114             :         // clip regions. This tooling method clips the geometry content of the metafile internally
     115             :         // against it's own clip regions, so that the export is safe to ignore clip regions
     116           0 :         clipMetafileContentAgainstOwnRegions(aGdiMetaFile);
     117             :     }
     118             : 
     119           0 :     return aEMFWriter.WriteEMF( aGdiMetaFile, pConfigItem );
     120             : }
     121             : 
     122           0 : bool WriteWindowMetafileBits( SvStream& rStream, const GDIMetaFile& rMTF )
     123             : {
     124           0 :     return WMFWriter().WriteWMF( rMTF, rStream, NULL, false );
     125           3 : }
     126             : 
     127             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */