summaryrefslogtreecommitdiffstats
path: root/oox/source/helper/binaryoutputstream.cxx
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--oox/source/helper/binaryoutputstream.cxx184
1 files changed, 184 insertions, 0 deletions
diff --git a/oox/source/helper/binaryoutputstream.cxx b/oox/source/helper/binaryoutputstream.cxx
new file mode 100644
index 000000000..50ce7f11c
--- /dev/null
+++ b/oox/source/helper/binaryoutputstream.cxx
@@ -0,0 +1,184 @@
+/* -*- 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)) )
+ return;
+
+ sal_Int32 nBufferSize = getLimitedValue< sal_Int32, sal_Int32 >( nBytes, 0, (OUTPUTSTREAM_BUFFERSIZE / nAtomSize) * nAtomSize );
+ const sal_uInt8* pnMem = static_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( std::u16string_view rString, rtl_TextEncoding eTextEnc )
+{
+ OString sBuf( OUStringToOString( rString, eTextEnc ) );
+ sBuf = sBuf.replace( '\0', '?' );
+ writeMemory( static_cast< const void* >( sBuf.getStr() ), sBuf.getLength() );
+}
+
+void
+BinaryOutputStream::writeUnicodeArray( const OUString& rString )
+{
+ OUString sBuf = rString.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 )
+{
+ 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 );
+ else
+ writeUnicodeArray( rString );
+}
+
+SequenceOutputStream::SequenceOutputStream( StreamDataSequence & rData ) :
+ BinaryStreamBase( true ),
+ mpData( &rData ),
+ mnPos( 0 )
+{
+}
+
+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 )
+ mpData->realloc( mnPos + nBytes );
+ memcpy( mpData->getArray() + mnPos, pMem, static_cast< size_t >( nBytes ) );
+ mnPos += nBytes;
+ }
+}
+
+sal_Int64 SequenceOutputStream::size() const
+{
+ return mpData ? mpData->getLength() : -1;
+}
+
+sal_Int64 SequenceOutputStream::tell() const
+{
+ return mpData ? mnPos : -1;
+}
+
+void SequenceOutputStream::seek( sal_Int64 nPos )
+{
+ if( mpData )
+ {
+ mnPos = getLimitedValue< sal_Int32, sal_Int64 >( nPos, 0, mpData->getLength() );
+ mbEof = mnPos != nPos;
+ }
+}
+
+void SequenceOutputStream::close()
+{
+ mpData = nullptr;
+ mbEof = true;
+}
+
+
+} // namespace oox
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */