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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 :
21 : #include "rtl/string.h"
22 : #include "rtl/string.h"
23 : #include "stgole.hxx"
24 : #include "sot/storinfo.hxx" // Read/WriteClipboardFormat()
25 :
26 : #ifdef _MSC_VER
27 : #pragma warning(disable: 4342)
28 : #endif
29 : ///////////////////////// class StgInternalStream ////////////////////////
30 :
31 60 : StgInternalStream::StgInternalStream
32 60 : ( BaseStorage& rStg, const String& rName, sal_Bool bWr )
33 : {
34 60 : bIsWritable = sal_True;
35 : sal_uInt16 nMode = bWr
36 : ? STREAM_WRITE | STREAM_SHARE_DENYALL
37 60 : : STREAM_READ | STREAM_SHARE_DENYWRITE | STREAM_NOCREATE;
38 60 : pStrm = rStg.OpenStream( rName, nMode );
39 :
40 : // set the error code right here in the stream
41 60 : SetError( rStg.GetError() );
42 60 : SetBufferSize( 1024 );
43 60 : }
44 :
45 120 : StgInternalStream::~StgInternalStream()
46 : {
47 60 : delete pStrm;
48 60 : }
49 :
50 40 : sal_uLong StgInternalStream::GetData( void* pData, sal_uLong nSize )
51 : {
52 40 : if( pStrm )
53 : {
54 40 : nSize = pStrm->Read( pData, nSize );
55 40 : SetError( pStrm->GetError() );
56 40 : return nSize;
57 : }
58 : else
59 0 : return 0;
60 : }
61 :
62 20 : sal_uLong StgInternalStream::PutData( const void* pData, sal_uLong nSize )
63 : {
64 20 : if( pStrm )
65 : {
66 20 : nSize = pStrm->Write( pData, nSize );
67 20 : SetError( pStrm->GetError() );
68 20 : return nSize;
69 : }
70 : else
71 0 : return 0;
72 : }
73 :
74 100 : sal_uLong StgInternalStream::SeekPos( sal_uLong nPos )
75 : {
76 100 : return pStrm ? pStrm->Seek( nPos ) : 0;
77 : }
78 :
79 20 : void StgInternalStream::FlushData()
80 : {
81 20 : if( pStrm )
82 : {
83 20 : pStrm->Flush();
84 20 : SetError( pStrm->GetError() );
85 : }
86 20 : }
87 :
88 20 : void StgInternalStream::Commit()
89 : {
90 20 : Flush();
91 20 : pStrm->Commit();
92 20 : }
93 :
94 : ///////////////////////// class StgCompObjStream /////////////////////////
95 :
96 50 : StgCompObjStream::StgCompObjStream( BaseStorage& rStg, sal_Bool bWr )
97 50 : : StgInternalStream( rStg, rtl::OUString("\1CompObj"), bWr )
98 : {
99 50 : memset( &aClsId, 0, sizeof( ClsId ) );
100 50 : nCbFormat = 0;
101 50 : }
102 :
103 40 : sal_Bool StgCompObjStream::Load()
104 : {
105 40 : memset( &aClsId, 0, sizeof( ClsId ) );
106 40 : nCbFormat = 0;
107 40 : aUserName.Erase();
108 40 : if( GetError() != SVSTREAM_OK )
109 0 : return sal_False;
110 40 : Seek( 8L ); // skip the first part
111 40 : sal_Int32 nMarker = 0;
112 40 : *this >> nMarker;
113 40 : if( nMarker == -1L )
114 : {
115 40 : *this >> aClsId;
116 40 : sal_Int32 nLen1 = 0;
117 40 : *this >> nLen1;
118 40 : if ( nLen1 > 0 )
119 : {
120 : // higher bits are ignored
121 40 : sal_uLong nStrLen = ::std::min( nLen1, (sal_Int32)0xFFFE );
122 :
123 40 : sal_Char* p = new sal_Char[ nStrLen+1 ];
124 40 : p[nStrLen] = 0;
125 40 : if( Read( p, nStrLen ) == nStrLen )
126 : {
127 : //The encoding here is "ANSI", which is pretty useless seeing as
128 : //the actual codepage used doesn't seem to be specified/stored
129 : //anywhere :-(. Might as well pick 1252 and be consistent on
130 : //all platforms and envs
131 : //http://www.openoffice.org/nonav/issues/showattachment.cgi/68668/Orginal%20Document.doc
132 : //for a good edge-case example
133 40 : aUserName = nStrLen ? String( p, RTL_TEXTENCODING_MS_1252 ) : String();
134 40 : nCbFormat = ReadClipboardFormat( *this );
135 : }
136 : else
137 0 : SetError( SVSTREAM_GENERALERROR );
138 40 : delete [] p;
139 : }
140 : }
141 40 : return sal_Bool( GetError() == SVSTREAM_OK );
142 : }
143 :
144 10 : sal_Bool StgCompObjStream::Store()
145 : {
146 10 : if( GetError() != SVSTREAM_OK )
147 0 : return sal_False;
148 10 : Seek( 0L );
149 10 : rtl::OString aAsciiUserName(rtl::OUStringToOString(aUserName, RTL_TEXTENCODING_MS_1252));
150 10 : *this << (sal_Int16) 1 // Version?
151 10 : << (sal_Int16) -2 // 0xFFFE = Byte Order Indicator
152 10 : << (sal_Int32) 0x0A03 // Windows 3.10
153 10 : << (sal_Int32) -1L
154 20 : << aClsId // Class ID
155 20 : << (sal_Int32) (aAsciiUserName.getLength() + 1)
156 20 : << (const char *)aAsciiUserName.getStr()
157 10 : << (sal_uInt8) 0; // string terminator
158 10 : WriteClipboardFormat( *this, nCbFormat );
159 10 : *this << (sal_Int32) 0; // terminator
160 10 : Commit();
161 10 : return sal_Bool( GetError() == SVSTREAM_OK );
162 : }
163 :
164 : /////////////////////////// class StgOleStream ///////////////////////////
165 :
166 10 : StgOleStream::StgOleStream( BaseStorage& rStg, sal_Bool bWr )
167 10 : : StgInternalStream( rStg, rtl::OUString("\1Ole"), bWr )
168 : {
169 10 : nFlags = 0;
170 10 : }
171 :
172 0 : sal_Bool StgOleStream::Load()
173 : {
174 0 : nFlags = 0;
175 0 : if( GetError() != SVSTREAM_OK )
176 0 : return sal_False;
177 0 : sal_Int32 version = 0;
178 0 : Seek( 0L );
179 0 : *this >> version >> nFlags;
180 0 : return sal_Bool( GetError() == SVSTREAM_OK );
181 : }
182 :
183 10 : sal_Bool StgOleStream::Store()
184 : {
185 10 : if( GetError() != SVSTREAM_OK )
186 0 : return sal_False;
187 10 : Seek( 0L );
188 10 : *this << (sal_Int32) 0x02000001 // OLE version, format
189 20 : << (sal_Int32) nFlags // Object flags
190 10 : << (sal_Int32) 0 // Update Options
191 10 : << (sal_Int32) 0 // reserved
192 10 : << (sal_Int32) 0; // Moniker 1
193 10 : Commit();
194 10 : return sal_Bool( GetError() == SVSTREAM_OK );
195 : }
196 :
197 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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