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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 : #include "oox/helper/binaryoutputstream.hxx"
21 :
22 : #include <com/sun/star/io/XOutputStream.hpp>
23 : #include <com/sun/star/io/XSeekable.hpp>
24 : #include <osl/diagnose.h>
25 : #include <string.h>
26 :
27 : namespace oox {
28 :
29 : // ============================================================================
30 :
31 : using namespace ::com::sun::star::io;
32 : using namespace ::com::sun::star::uno;
33 :
34 : namespace {
35 :
36 : const sal_Int32 OUTPUTSTREAM_BUFFERSIZE = 0x8000;
37 :
38 : } // namespace
39 :
40 : // ============================================================================
41 :
42 152 : BinaryXOutputStream::BinaryXOutputStream( const Reference< XOutputStream >& rxOutStrm, bool bAutoClose ) :
43 304 : BinaryStreamBase( Reference< XSeekable >( rxOutStrm, UNO_QUERY ).is() ),
44 : BinaryXSeekableStream( Reference< XSeekable >( rxOutStrm, UNO_QUERY ) ),
45 : maBuffer( OUTPUTSTREAM_BUFFERSIZE ),
46 : mxOutStrm( rxOutStrm ),
47 304 : mbAutoClose( bAutoClose && rxOutStrm.is() )
48 : {
49 152 : mbEof = !mxOutStrm.is();
50 152 : }
51 :
52 456 : BinaryXOutputStream::~BinaryXOutputStream()
53 : {
54 152 : close();
55 304 : }
56 :
57 152 : void BinaryXOutputStream::close()
58 : {
59 : OSL_ENSURE( !mbAutoClose || mxOutStrm.is(), "BinaryXOutputStream::close - invalid call" );
60 152 : if( mxOutStrm.is() ) try
61 : {
62 152 : mxOutStrm->flush();
63 152 : mxOutStrm->closeOutput();
64 : }
65 0 : catch( Exception& )
66 : {
67 : OSL_FAIL( "BinaryXOutputStream::close - closing output stream failed" );
68 : }
69 152 : mxOutStrm.clear();
70 152 : mbAutoClose = false;
71 152 : BinaryXSeekableStream::close();
72 152 : }
73 :
74 210 : void BinaryXOutputStream::writeData( const StreamDataSequence& rData, size_t /*nAtomSize*/ )
75 : {
76 210 : if( mxOutStrm.is() ) try
77 : {
78 210 : mxOutStrm->writeBytes( rData );
79 : }
80 0 : catch( Exception& )
81 : {
82 : OSL_FAIL( "BinaryXOutputStream::writeData - stream read error" );
83 : }
84 210 : }
85 :
86 37 : void BinaryXOutputStream::writeMemory( const void* pMem, sal_Int32 nBytes, size_t nAtomSize )
87 : {
88 37 : if( mxOutStrm.is() && (nBytes > 0) )
89 : {
90 35 : sal_Int32 nBufferSize = getLimitedValue< sal_Int32, sal_Int32 >( nBytes, 0, (OUTPUTSTREAM_BUFFERSIZE / nAtomSize) * nAtomSize );
91 35 : const sal_uInt8* pnMem = reinterpret_cast< const sal_uInt8* >( pMem );
92 105 : while( nBytes > 0 )
93 : {
94 35 : sal_Int32 nWriteSize = getLimitedValue< sal_Int32, sal_Int32 >( nBytes, 0, nBufferSize );
95 35 : maBuffer.realloc( nWriteSize );
96 35 : memcpy( maBuffer.getArray(), pnMem, static_cast< size_t >( nWriteSize ) );
97 35 : writeData( maBuffer, nAtomSize );
98 35 : pnMem += nWriteSize;
99 35 : nBytes -= nWriteSize;
100 : }
101 : }
102 37 : }
103 :
104 : void
105 4 : BinaryOutputStream::writeCharArrayUC( const OUString& rString, rtl_TextEncoding eTextEnc, bool bAllowNulChars )
106 : {
107 4 : OString sBuf( OUStringToOString( rString, eTextEnc ) );
108 4 : if( !bAllowNulChars )
109 4 : sBuf = sBuf.replace( '\0', '?' );
110 4 : writeMemory( static_cast< const void* >( sBuf.getStr() ), sBuf.getLength() );
111 4 : }
112 :
113 : void
114 1 : BinaryOutputStream::writeUnicodeArray( const ::rtl::OUString& rString, bool bAllowNulChars )
115 : {
116 1 : OUString sBuf( rString );
117 1 : if( !bAllowNulChars )
118 1 : sBuf = sBuf.replace( '\0', '?' );
119 : #ifdef OSL_BIGENDIAN
120 : // need a non-const buffer for swapping byte order
121 : sal_Unicode notConst[sBuf.getLength()];
122 : memcpy( notConst, sBuf.getStr(), sizeof(sal_Unicode)*sBuf.getLength() );
123 : writeArray( notConst, sBuf.getLength() );
124 : #else
125 1 : writeArray( sBuf.getStr(), sBuf.getLength() );
126 : #endif
127 1 : }
128 :
129 : void
130 4 : BinaryOutputStream::writeCompressedUnicodeArray( const rtl::OUString& rString, bool bCompressed, bool bAllowNulChars )
131 : {
132 4 : if ( bCompressed )
133 : // ISO-8859-1 maps all byte values 0xHH to the same Unicode code point U+00HH
134 4 : writeCharArrayUC( rString, RTL_TEXTENCODING_ISO_8859_1, bAllowNulChars );
135 : else
136 0 : writeUnicodeArray( rString, bAllowNulChars );
137 4 : }
138 :
139 : // ============================================================================
140 :
141 0 : SequenceOutputStream::SequenceOutputStream( StreamDataSequence& rData ) :
142 : BinaryStreamBase( true ),
143 0 : SequenceSeekableStream( rData )
144 : {
145 0 : }
146 :
147 0 : void SequenceOutputStream::writeData( const StreamDataSequence& rData, size_t nAtomSize )
148 : {
149 0 : if( mpData && rData.hasElements() )
150 0 : writeMemory( rData.getConstArray(), rData.getLength(), nAtomSize );
151 0 : }
152 :
153 0 : void SequenceOutputStream::writeMemory( const void* pMem, sal_Int32 nBytes, size_t /*nAtomSize*/ )
154 : {
155 0 : if( mpData && (nBytes > 0) )
156 : {
157 0 : if( mpData->getLength() - mnPos < nBytes )
158 0 : const_cast< StreamDataSequence* >( mpData )->realloc( mnPos + nBytes );
159 0 : memcpy( const_cast< StreamDataSequence* >( mpData )->getArray() + mnPos, pMem, static_cast< size_t >( nBytes ) );
160 0 : mnPos += nBytes;
161 : }
162 0 : }
163 :
164 : // ============================================================================
165 :
166 : } // namespace oox
167 :
168 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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