1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include <oox/ole/axbinarywriter.hxx>
#include <oox/ole/olehelper.hxx>
namespace oox {
namespace ole {
namespace {
const sal_uInt32 AX_STRING_COMPRESSED = 0x80000000;
} // namespace
AxAlignedOutputStream::AxAlignedOutputStream( BinaryOutputStream& rOutStrm ) :
BinaryStreamBase( false ),
mpOutStrm( &rOutStrm ),
mnStrmPos( 0 ),
mnStrmSize( rOutStrm.getRemaining() ),
mnWrappedBeginPos( rOutStrm.tell() )
{
mbEof = mbEof || rOutStrm.isEof();
}
sal_Int64 AxAlignedOutputStream::size() const
{
return mpOutStrm ? mnStrmSize : -1;
}
sal_Int64 AxAlignedOutputStream::tell() const
{
return mpOutStrm ? mnStrmPos : -1;
}
void AxAlignedOutputStream::seek( sal_Int64 nPos )
{
mbEof = (nPos < 0);
if( !mbEof )
{
mpOutStrm->seek( static_cast< sal_Int32 >( mnWrappedBeginPos + nPos ) );
mnStrmPos = mpOutStrm->tell() - mnWrappedBeginPos;
}
}
void AxAlignedOutputStream::close()
{
mpOutStrm = nullptr;
mbEof = true;
}
void AxAlignedOutputStream::writeData( const StreamDataSequence& orData, size_t nAtomSize )
{
mpOutStrm->writeData( orData, nAtomSize );
mnStrmPos = mpOutStrm->tell() - mnWrappedBeginPos;
}
void AxAlignedOutputStream::writeMemory( const void* opMem, sal_Int32 nBytes, size_t nAtomSize )
{
mpOutStrm->writeMemory( opMem, nBytes, nAtomSize );
mnStrmPos = mpOutStrm->tell() - mnWrappedBeginPos;
}
void AxAlignedOutputStream::pad( sal_Int32 nBytes )
{
//PRESUMABLY we need to pad with 0's here as appropriate
css::uno::Sequence< sal_Int8 > aData( nBytes );
// ok we could be padding with rubbish here, but really that shouldn't matter
// set to 0(s), easier to not get fooled by 0's when looking at
// binary content......
memset( static_cast<void*>( aData.getArray() ), 0, nBytes );
mpOutStrm->writeData( aData );
mnStrmPos = mpOutStrm->tell() - mnWrappedBeginPos;
}
void AxAlignedOutputStream::align( size_t nSize )
{
pad( static_cast< sal_Int32 >( (nSize - (mnStrmPos % nSize)) % nSize ) );
}
namespace {
void lclWriteString( AxAlignedOutputStream& rOutStrm, OUString const & rValue, sal_uInt32 nSize )
{
bool bCompressed = getFlag( nSize, AX_STRING_COMPRESSED );
rOutStrm.writeCompressedUnicodeArray( rValue, bCompressed );
}
} // namespace
AxBinaryPropertyWriter::ComplexProperty::~ComplexProperty()
{
}
bool AxBinaryPropertyWriter::PairProperty::writeProperty( AxAlignedOutputStream& rOutStrm )
{
rOutStrm.WriteInt32(mrPairData.first).WriteInt32(mrPairData.second);
return true;
}
bool AxBinaryPropertyWriter::StringProperty::writeProperty( AxAlignedOutputStream& rOutStrm )
{
lclWriteString( rOutStrm, mrValue, mnSize );
return true;
}
AxBinaryPropertyWriter::AxBinaryPropertyWriter( BinaryOutputStream& rOutStrm, bool b64BitPropFlags ) :
maOutStrm( rOutStrm ),
mnPropFlags( 0x0 ),
mbValid( true ),
mb64BitPropFlags( b64BitPropFlags )
{
sal_uInt16 nId( 0x0200 );
maOutStrm.WriteUInt16(nId);
mnBlockSize = 0; // will be filled in the finalize method
maOutStrm.WriteUInt16(nId);
mnPropFlagsStart = maOutStrm.tell();
if( mb64BitPropFlags )
maOutStrm.WriteInt64( mnPropFlags );
else
maOutStrm.WriteUInt32( mnPropFlags );
mnNextProp = 1;
}
void AxBinaryPropertyWriter::writeBoolProperty( bool orbValue )
{
// orbValue == bReverse false then we want to set the bit, e.g. don't skip
startNextProperty( !orbValue );
}
void AxBinaryPropertyWriter::writePairProperty( AxPairData& orPairData )
{
startNextProperty();
maLargeProps.push_back( ComplexPropVector::value_type( new PairProperty( orPairData ) ) );
}
void AxBinaryPropertyWriter::writeStringProperty( OUString& orValue )
{
sal_uInt32 nSize = orValue.getLength();
setFlag( nSize, AX_STRING_COMPRESSED );
maOutStrm.writeAligned< sal_uInt32 >( nSize );
maLargeProps.push_back( ComplexPropVector::value_type( new StringProperty( orValue, nSize ) ) );
startNextProperty();
}
void AxBinaryPropertyWriter::finalizeExport()
{
// write large properties
maOutStrm.align( 4 );
for (auto const& largeProp : maLargeProps)
{
if (!ensureValid())
break;
largeProp->writeProperty( maOutStrm );
maOutStrm.align( 4 );
}
mnBlockSize = maOutStrm.tell() - mnPropFlagsStart;
// write stream properties (no stream alignment between properties!)
for (auto const& streamProp : maStreamProps)
{
if (!ensureValid())
break;
streamProp->writeProperty( maOutStrm );
}
sal_Int64 nPos = maOutStrm.tell();
maOutStrm.seek( mnPropFlagsStart - sizeof( mnBlockSize ) );
maOutStrm.WriteInt16( mnBlockSize );
if( mb64BitPropFlags )
maOutStrm.WriteInt64( mnPropFlags );
else
maOutStrm.WriteUInt32( mnPropFlags );
maOutStrm.seek( nPos );
}
bool AxBinaryPropertyWriter::ensureValid()
{
mbValid = mbValid && !maOutStrm.isEof();
return mbValid;
}
void AxBinaryPropertyWriter::startNextProperty( bool bSkip )
{
// if we are skipping then we clear the flag
setFlag( mnPropFlags, mnNextProp, !bSkip );
mnNextProp <<= 1;
}
} // namespace exp
} // namespace ole
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|