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/* -*- 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/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include "oox/helper/binaryoutputstream.hxx"
#include <com/sun/star/io/XOutputStream.hpp>
#include <com/sun/star/io/XSeekable.hpp>
#include <osl/diagnose.h>
#include <string.h>
namespace oox {
using namespace ::com::sun::star::io;
using namespace ::com::sun::star::uno;
namespace {
const sal_Int32 OUTPUTSTREAM_BUFFERSIZE = 0x8000;
} // namespace
BinaryXOutputStream::BinaryXOutputStream( const Reference< XOutputStream >& rxOutStrm, bool bAutoClose ) :
BinaryStreamBase( Reference< XSeekable >( rxOutStrm, UNO_QUERY ).is() ),
BinaryXSeekableStream( Reference< XSeekable >( rxOutStrm, UNO_QUERY ) ),
maBuffer( OUTPUTSTREAM_BUFFERSIZE ),
mxOutStrm( rxOutStrm ),
mbAutoClose( bAutoClose && rxOutStrm.is() )
{
mbEof = !mxOutStrm.is();
}
BinaryXOutputStream::~BinaryXOutputStream()
{
close();
}
void BinaryXOutputStream::close()
{
OSL_ENSURE( !mbAutoClose || mxOutStrm.is(), "BinaryXOutputStream::close - invalid call" );
if( mxOutStrm.is() ) try
{
mxOutStrm->flush();
if ( mbAutoClose )
mxOutStrm->closeOutput();
}
catch( Exception& )
{
OSL_FAIL( "BinaryXOutputStream::close - closing output stream failed" );
}
mxOutStrm.clear();
mbAutoClose = false;
BinaryXSeekableStream::close();
}
void BinaryXOutputStream::writeData( const StreamDataSequence& rData, size_t /*nAtomSize*/ )
{
if( mxOutStrm.is() ) try
{
mxOutStrm->writeBytes( rData );
}
catch( Exception& )
{
OSL_FAIL( "BinaryXOutputStream::writeData - stream read error" );
}
}
void BinaryXOutputStream::writeMemory( const void* pMem, sal_Int32 nBytes, size_t nAtomSize )
{
if( mxOutStrm.is() && (nBytes > 0) )
{
sal_Int32 nBufferSize = getLimitedValue< sal_Int32, sal_Int32 >( nBytes, 0, (OUTPUTSTREAM_BUFFERSIZE / nAtomSize) * nAtomSize );
const sal_uInt8* pnMem = reinterpret_cast< const sal_uInt8* >( pMem );
while( nBytes > 0 )
{
sal_Int32 nWriteSize = getLimitedValue< sal_Int32, sal_Int32 >( nBytes, 0, nBufferSize );
maBuffer.realloc( nWriteSize );
memcpy( maBuffer.getArray(), pnMem, static_cast< size_t >( nWriteSize ) );
writeData( maBuffer, nAtomSize );
pnMem += nWriteSize;
nBytes -= nWriteSize;
}
}
}
void
BinaryOutputStream::writeCharArrayUC( const OUString& rString, rtl_TextEncoding eTextEnc, bool bAllowNulChars )
{
OString sBuf( OUStringToOString( rString, eTextEnc ) );
if( !bAllowNulChars )
sBuf = sBuf.replace( '\0', '?' );
writeMemory( static_cast< const void* >( sBuf.getStr() ), sBuf.getLength() );
}
void
BinaryOutputStream::writeUnicodeArray( const OUString& rString, bool bAllowNulChars )
{
OUString sBuf( rString );
if( !bAllowNulChars )
sBuf = sBuf.replace( '\0', '?' );
#ifdef OSL_BIGENDIAN
// need a non-const buffer for swapping byte order
sal_Unicode notConst[sBuf.getLength()];
memcpy( notConst, sBuf.getStr(), sizeof(sal_Unicode)*sBuf.getLength() );
writeArray( notConst, sBuf.getLength() );
#else
writeArray( sBuf.getStr(), sBuf.getLength() );
#endif
}
void
BinaryOutputStream::writeCompressedUnicodeArray( const OUString& rString, bool bCompressed, bool bAllowNulChars )
{
if ( bCompressed )
// ISO-8859-1 maps all byte values 0xHH to the same Unicode code point U+00HH
writeCharArrayUC( rString, RTL_TEXTENCODING_ISO_8859_1, bAllowNulChars );
else
writeUnicodeArray( rString, bAllowNulChars );
}
SequenceOutputStream::SequenceOutputStream( StreamDataSequence& rData ) :
BinaryStreamBase( true ),
SequenceSeekableStream( rData )
{
}
void SequenceOutputStream::writeData( const StreamDataSequence& rData, size_t nAtomSize )
{
if( mpData && rData.hasElements() )
writeMemory( rData.getConstArray(), rData.getLength(), nAtomSize );
}
void SequenceOutputStream::writeMemory( const void* pMem, sal_Int32 nBytes, size_t /*nAtomSize*/ )
{
if( mpData && (nBytes > 0) )
{
if( mpData->getLength() - mnPos < nBytes )
const_cast< StreamDataSequence* >( mpData )->realloc( mnPos + nBytes );
memcpy( const_cast< StreamDataSequence* >( mpData )->getArray() + mnPos, pMem, static_cast< size_t >( nBytes ) );
mnPos += nBytes;
}
}
} // namespace oox
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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