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 :
27 224 : bool ConvertWMFToGDIMetaFile( SvStream & rStreamWMF, GDIMetaFile & rGDIMetaFile, FilterConfigItem* pConfigItem, WMF_EXTERNALHEADER *pExtHeader )
28 : {
29 : sal_uInt32 nMetaType;
30 224 : sal_uInt32 nOrgPos = rStreamWMF.Tell();
31 224 : SvStreamEndian nOrigNumberFormat = rStreamWMF.GetEndian();
32 224 : rStreamWMF.SetEndian( SvStreamEndian::LITTLE );
33 224 : rStreamWMF.Seek( 0x28 );
34 224 : rStreamWMF.ReadUInt32( nMetaType );
35 224 : rStreamWMF.Seek( nOrgPos );
36 224 : if ( nMetaType == 0x464d4520 )
37 : {
38 120 : if ( !EnhWMFReader( rStreamWMF, rGDIMetaFile, pConfigItem ).ReadEnhWMF() )
39 4 : rStreamWMF.SetError( SVSTREAM_FILEFORMAT_ERROR );
40 : }
41 : else
42 : {
43 104 : 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 :
52 224 : rStreamWMF.SetEndian( nOrigNumberFormat );
53 224 : return !rStreamWMF.GetError();
54 : }
55 :
56 4 : bool ReadWindowMetafile( SvStream& rStream, GDIMetaFile& rMTF, FilterConfigItem* pFilterConfigItem )
57 : {
58 4 : sal_uInt32 nMetaType(0);
59 4 : sal_uInt32 nOrgPos = rStream.Tell();
60 :
61 4 : SvStreamEndian nOrigNumberFormat = rStream.GetEndian();
62 4 : rStream.SetEndian( SvStreamEndian::LITTLE );
63 : //exception-safe reset nOrigNumberFormat at end of scope
64 : const ::comphelper::ScopeGuard aScopeGuard(
65 : boost::bind(&SvStream::SetEndian, ::boost::ref(rStream),
66 4 : nOrigNumberFormat));
67 :
68 4 : rStream.Seek( 0x28 );
69 4 : rStream.ReadUInt32( nMetaType );
70 4 : rStream.Seek( nOrgPos );
71 :
72 4 : if (!rStream.good())
73 0 : return false;
74 :
75 4 : if ( nMetaType == 0x464d4520 )
76 : {
77 3 : if ( !EnhWMFReader( rStream, rMTF, NULL ).ReadEnhWMF() )
78 0 : rStream.SetError( SVSTREAM_FILEFORMAT_ERROR );
79 : }
80 : else
81 : {
82 1 : WMFReader( rStream, rMTF, pFilterConfigItem ).ReadWMF();
83 : }
84 :
85 4 : return rStream.good();
86 : }
87 :
88 41 : bool ConvertGDIMetaFileToWMF( const GDIMetaFile & rMTF, SvStream & rTargetStream,
89 : FilterConfigItem* pConfigItem, bool bPlaceable)
90 : {
91 41 : WMFWriter aWMFWriter;
92 82 : GDIMetaFile aGdiMetaFile(rMTF);
93 :
94 41 : 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 31 : clipMetafileContentAgainstOwnRegions(aGdiMetaFile);
100 : }
101 :
102 82 : return aWMFWriter.WriteWMF( aGdiMetaFile, rTargetStream, pConfigItem, bPlaceable );
103 : }
104 :
105 38 : bool ConvertGDIMetaFileToEMF(const GDIMetaFile & rMTF, SvStream & rTargetStream)
106 : {
107 38 : EMFWriter aEMFWriter(rTargetStream);
108 76 : GDIMetaFile aGdiMetaFile(rMTF);
109 :
110 38 : if(usesClipActions(aGdiMetaFile))
111 : {
112 : // #i121267# It is necessary to prepare the metafile since the export does *not* support
113 : // clip regions. This tooling method clips the geometry content of the metafile internally
114 : // against it's own clip regions, so that the export is safe to ignore clip regions
115 7 : clipMetafileContentAgainstOwnRegions(aGdiMetaFile);
116 : }
117 :
118 76 : return aEMFWriter.WriteEMF(aGdiMetaFile);
119 : }
120 :
121 0 : bool WriteWindowMetafileBits( SvStream& rStream, const GDIMetaFile& rMTF )
122 : {
123 0 : return WMFWriter().WriteWMF( rMTF, rStream, NULL, false );
124 801 : }
125 :
126 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|