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/*************************************************************************
*
* $RCSfile: svcompat.cxx,v $
*
* $Revision: 1.1.1.1 $
*
* last change: $Author: hr $ $Date: 2000-09-18 17:05:38 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (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.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
#define _SV_COMPAT_CXX
#ifndef _STREAM_HXX
#include <tools/stream.hxx>
#endif
#ifndef _SV_SVCOMPAT_HXX
#include <svcompat.hxx>
#endif
// --------------
// - ImplCompat -
// --------------
ImplCompat::ImplCompat( SvStream& rStm, USHORT nStreamMode, USHORT nVersion ) :
mpRWStm ( &rStm ),
mnStmMode ( nStreamMode ),
mnVersion ( nVersion )
{
if( !mpRWStm->GetError() )
{
if( STREAM_WRITE == mnStmMode )
{
*mpRWStm << mnVersion;
mnTotalSize = ( mnCompatPos = mpRWStm->Tell() ) + 4UL;
mpRWStm->SeekRel( 4L );
}
else
{
*mpRWStm >> mnVersion;
*mpRWStm >> mnTotalSize;
mnCompatPos = mpRWStm->Tell();
}
}
}
// ------------------------------------------------------------------------
ImplCompat::~ImplCompat()
{
if( STREAM_WRITE == mnStmMode )
{
const UINT32 nEndPos = mpRWStm->Tell();
mpRWStm->Seek( mnCompatPos );
*mpRWStm << ( nEndPos - mnTotalSize );
mpRWStm->Seek( nEndPos );
}
else
{
const UINT32 nReadSize = mpRWStm->Tell() - mnCompatPos;
if( mnTotalSize > nReadSize )
mpRWStm->SeekRel( mnTotalSize - nReadSize );
}
}
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