diff options
Diffstat (limited to 'sd/source/core/sdiocmpt.cxx')
-rw-r--r-- | sd/source/core/sdiocmpt.cxx | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/sd/source/core/sdiocmpt.cxx b/sd/source/core/sdiocmpt.cxx new file mode 100644 index 000000000000..5231aaf261ba --- /dev/null +++ b/sd/source/core/sdiocmpt.cxx @@ -0,0 +1,136 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org 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 version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_sd.hxx" + + +#include <tools/debug.hxx> + +#include "sdiocmpt.hxx" + +////////////////////////////////////////////////////////////////////////////// + +old_SdrDownCompat::old_SdrDownCompat(SvStream& rNewStream, UINT16 nNewMode) +: rStream(rNewStream), + nSubRecSiz(0), + nSubRecPos(0), + nMode(nNewMode), + bOpen(FALSE) +{ + OpenSubRecord(); +} + +old_SdrDownCompat::~old_SdrDownCompat() +{ + if(bOpen) + CloseSubRecord(); +} + +void old_SdrDownCompat::Read() +{ + rStream >> nSubRecSiz; +} + +void old_SdrDownCompat::Write() +{ + rStream << nSubRecSiz; +} + +void old_SdrDownCompat::OpenSubRecord() +{ + if(rStream.GetError()) + return; + + nSubRecPos = rStream.Tell(); + + if(nMode == STREAM_READ) + { + Read(); + } + else if(nMode == STREAM_WRITE) + { + Write(); + } + + bOpen = TRUE; +} + +void old_SdrDownCompat::CloseSubRecord() +{ + if(rStream.GetError()) + return; + + UINT32 nAktPos(rStream.Tell()); + + if(nMode == STREAM_READ) + { + UINT32 nReadAnz(nAktPos - nSubRecPos); + if(nReadAnz != nSubRecSiz) + { + rStream.Seek(nSubRecPos + nSubRecSiz); + } + } + else if(nMode == STREAM_WRITE) + { + nSubRecSiz = nAktPos - nSubRecPos; + rStream.Seek(nSubRecPos); + Write(); + rStream.Seek(nAktPos); + } + + bOpen = FALSE; +} + +/************************************************************************* +|* +|* Konstruktor, schreibt bzw. liest Versionsnummer +|* +\************************************************************************/ + +SdIOCompat::SdIOCompat(SvStream& rNewStream, USHORT nNewMode, UINT16 nVer) +: old_SdrDownCompat(rNewStream, nNewMode), nVersion(nVer) +{ + if (nNewMode == STREAM_WRITE) + { + DBG_ASSERT(nVer != SDIOCOMPAT_VERSIONDONTKNOW, + "kann unbekannte Version nicht schreiben"); + rNewStream << nVersion; + } + else if (nNewMode == STREAM_READ) + { + DBG_ASSERT(nVer == SDIOCOMPAT_VERSIONDONTKNOW, + "Lesen mit Angabe der Version ist Quatsch!"); + rNewStream >> nVersion; + } +} + +SdIOCompat::~SdIOCompat() +{ +} + +// eof |