97 lines
2.8 KiB
C++
97 lines
2.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#include <svtools/imap.hxx>
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#include <tools/debug.hxx>
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/******************************************************************************
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|*
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|* Ctor
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|*
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\******************************************************************************/
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IMapCompat::IMapCompat( SvStream& rStm, const sal_uInt16 nStreamMode ) :
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pRWStm ( &rStm ),
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nStmMode ( nStreamMode )
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{
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DBG_ASSERT( nStreamMode == STREAM_READ || nStreamMode == STREAM_WRITE, "Wrong Mode!" );
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if ( !pRWStm->GetError() )
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{
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if ( nStmMode == STREAM_WRITE )
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{
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nCompatPos = pRWStm->Tell();
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pRWStm->SeekRel( 4 );
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nTotalSize = nCompatPos + 4;
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}
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else
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{
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sal_uInt32 nTotalSizeTmp;
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*pRWStm >> nTotalSizeTmp;
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nTotalSize = nTotalSizeTmp;
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nCompatPos = pRWStm->Tell();
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}
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}
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}
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/******************************************************************************
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|*
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|* Dtor
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|*
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\******************************************************************************/
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IMapCompat::~IMapCompat()
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{
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if ( !pRWStm->GetError() )
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{
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if ( nStmMode == STREAM_WRITE )
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{
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const sal_uLong nEndPos = pRWStm->Tell();
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pRWStm->Seek( nCompatPos );
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*pRWStm << (sal_uInt32) ( nEndPos - nTotalSize );
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pRWStm->Seek( nEndPos );
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}
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else
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{
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const sal_uLong nReadSize = pRWStm->Tell() - nCompatPos;
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if ( nTotalSize > nReadSize )
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pRWStm->SeekRel( nTotalSize - nReadSize );
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}
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}
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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