1 /************************************************************************* 2 * 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * Copyright 2000, 2010 Oracle and/or its affiliates. 6 * 7 * OpenOffice.org - a multi-platform office productivity suite 8 * 9 * This file is part of OpenOffice.org. 10 * 11 * OpenOffice.org is free software: you can redistribute it and/or modify 12 * it under the terms of the GNU Lesser General Public License version 3 13 * only, as published by the Free Software Foundation. 14 * 15 * OpenOffice.org is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU Lesser General Public License version 3 for more details 19 * (a copy is included in the LICENSE file that accompanied this code). 20 * 21 * You should have received a copy of the GNU Lesser General Public License 22 * version 3 along with OpenOffice.org. If not, see 23 * <http://www.openoffice.org/license.html> 24 * for a copy of the LGPLv3 License. 25 * 26 ************************************************************************/ 27 28 // MARKER(update_precomp.py): autogen include statement, do not remove 29 #include "precompiled_svtools.hxx" 30 31 32 #include <svtools/imap.hxx> 33 34 #include <tools/debug.hxx> 35 36 37 /****************************************************************************** 38 |* 39 |* Ctor 40 |* 41 \******************************************************************************/ 42 43 IMapCompat::IMapCompat( SvStream& rStm, const sal_uInt16 nStreamMode ) : 44 pRWStm ( &rStm ), 45 nStmMode ( nStreamMode ) 46 { 47 DBG_ASSERT( nStreamMode == STREAM_READ || nStreamMode == STREAM_WRITE, "Wrong Mode!" ); 48 49 if ( !pRWStm->GetError() ) 50 { 51 if ( nStmMode == STREAM_WRITE ) 52 { 53 nCompatPos = pRWStm->Tell(); 54 pRWStm->SeekRel( 4 ); 55 nTotalSize = nCompatPos + 4; 56 } 57 else 58 { 59 sal_uInt32 nTotalSizeTmp; 60 *pRWStm >> nTotalSizeTmp; 61 nTotalSize = nTotalSizeTmp; 62 nCompatPos = pRWStm->Tell(); 63 } 64 } 65 } 66 67 68 /****************************************************************************** 69 |* 70 |* Dtor 71 |* 72 \******************************************************************************/ 73 74 IMapCompat::~IMapCompat() 75 { 76 if ( !pRWStm->GetError() ) 77 { 78 if ( nStmMode == STREAM_WRITE ) 79 { 80 const sal_uLong nEndPos = pRWStm->Tell(); 81 82 pRWStm->Seek( nCompatPos ); 83 *pRWStm << (sal_uInt32) ( nEndPos - nTotalSize ); 84 pRWStm->Seek( nEndPos ); 85 } 86 else 87 { 88 const sal_uLong nReadSize = pRWStm->Tell() - nCompatPos; 89 90 if ( nTotalSize > nReadSize ) 91 pRWStm->SeekRel( nTotalSize - nReadSize ); 92 } 93 } 94 } 95 96 97 98