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Diffstat (limited to 'oox/source/xls/excelhandlers.cxx')
| -rw-r--r-- | oox/source/xls/excelhandlers.cxx | 261 |
1 files changed, 261 insertions, 0 deletions
diff --git a/oox/source/xls/excelhandlers.cxx b/oox/source/xls/excelhandlers.cxx new file mode 100644 index 000000000000..caa37f5e7ef2 --- /dev/null +++ b/oox/source/xls/excelhandlers.cxx @@ -0,0 +1,261 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/************************************************************************* + * + * 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. + * + ************************************************************************/ + +#include "oox/xls/excelhandlers.hxx" +#include "oox/core/filterbase.hxx" +#include "oox/xls/biffinputstream.hxx" + +using ::rtl::OUString; +using ::oox::core::FilterBase; +using ::oox::core::FragmentHandler2; + +namespace oox { +namespace xls { + +// ============================================================================ +// ============================================================================ + +OoxWorkbookFragmentBase::OoxWorkbookFragmentBase( + const WorkbookHelper& rHelper, const OUString& rFragmentPath ) : + FragmentHandler2( rHelper.getOoxFilter(), rFragmentPath ), + WorkbookHelper( rHelper ) +{ +} + +// ============================================================================ + +OoxWorksheetFragmentBase::OoxWorksheetFragmentBase( const WorkbookHelper& rHelper, + const OUString& rFragmentPath, ISegmentProgressBarRef xProgressBar, WorksheetType eSheetType, sal_Int16 nSheet ) : + FragmentHandler2( rHelper.getOoxFilter(), rFragmentPath ), + WorksheetHelperRoot( rHelper, xProgressBar, eSheetType, nSheet ) +{ +} + +OoxWorksheetFragmentBase::OoxWorksheetFragmentBase( + const WorksheetHelper& rHelper, const OUString& rFragmentPath ) : + FragmentHandler2( rHelper.getOoxFilter(), rFragmentPath ), + WorksheetHelperRoot( rHelper ) +{ +} + +// ============================================================================ +// ============================================================================ + +namespace { + +const sal_uInt16 BIFF_BOF_GLOBALS = 0x0005; /// BIFF5-BIFF8 workbook globals. +const sal_uInt16 BIFF_BOF_MODULE = 0x0006; /// BIFF5-BIFF8 Visual Basic module. +const sal_uInt16 BIFF_BOF_SHEET = 0x0010; /// BIFF2-BIFF8 worksheet/dialog sheet. +const sal_uInt16 BIFF_BOF_CHART = 0x0020; /// BIFF2-BIFF8 chart sheet. +const sal_uInt16 BIFF_BOF_MACRO = 0x0040; /// BIFF4-BIFF8 macro sheet. +const sal_uInt16 BIFF_BOF_WORKSPACE = 0x0100; /// BIFF3-BIFF8 workspace. + +} // namespace + +// ============================================================================ + +BiffHandlerBase::~BiffHandlerBase() +{ +} + +bool BiffHandlerBase::skipRecordBlock( sal_uInt16 nEndRecId ) +{ + sal_uInt16 nStartRecId = mrStrm.getRecId(); + while( mrStrm.startNextRecord() && (mrStrm.getRecId() != nEndRecId) ) + if( mrStrm.getRecId() == nStartRecId ) + skipRecordBlock( nEndRecId ); + return !mrStrm.isEof() && (mrStrm.getRecId() == nEndRecId); +} + +bool BiffHandlerBase::isBofRecord() const +{ + return + (mrStrm.getRecId() == BIFF2_ID_BOF) || + (mrStrm.getRecId() == BIFF3_ID_BOF) || + (mrStrm.getRecId() == BIFF4_ID_BOF) || + (mrStrm.getRecId() == BIFF5_ID_BOF); +} + +// ============================================================================ + +BiffContextHandler::BiffContextHandler( const BiffHandlerBase& rParent ) : + BiffHandlerBase( rParent ) +{ +} + +// ============================================================================ + +namespace prv { + +BiffFragmentStreamOwner::BiffFragmentStreamOwner( const FilterBase& rFilter, const OUString& rStrmName ) +{ + // do not automatically close the root stream (indicated by empty stream name) + mxXInStrm.reset( new BinaryXInputStream( rFilter.openInputStream( rStrmName ), rStrmName.getLength() > 0 ) ); + mxBiffStrm.reset( new BiffInputStream( *mxXInStrm ) ); +} + +BiffFragmentStreamOwner::~BiffFragmentStreamOwner() +{ +} + +} // namespace prv + +// ---------------------------------------------------------------------------- + +BiffFragmentHandler::BiffFragmentHandler( const FilterBase& rFilter, const OUString& rStrmName ) : + prv::BiffFragmentStreamOwner( rFilter, rStrmName ), + BiffHandlerBase( *mxBiffStrm ) +{ +} + +BiffFragmentHandler::BiffFragmentHandler( const BiffFragmentHandler& rHandler ) : + prv::BiffFragmentStreamOwner( rHandler ), + BiffHandlerBase( rHandler ) +{ +} + +BiffFragmentType BiffFragmentHandler::startFragment( BiffType eBiff ) +{ + return mrStrm.startNextRecord() ? implStartFragment( eBiff ) : BIFF_FRAGMENT_UNKNOWN; +} + +BiffFragmentType BiffFragmentHandler::startFragment( BiffType eBiff, sal_Int64 nRecHandle ) +{ + return mrStrm.startRecordByHandle( nRecHandle ) ? implStartFragment( eBiff ) : BIFF_FRAGMENT_UNKNOWN; +} + +bool BiffFragmentHandler::skipFragment() +{ + while( mrStrm.startNextRecord() && (mrStrm.getRecId() != BIFF_ID_EOF) ) + if( isBofRecord() ) + skipFragment(); + return !mrStrm.isEof() && (mrStrm.getRecId() == BIFF_ID_EOF); +} + +BiffFragmentType BiffFragmentHandler::implStartFragment( BiffType eBiff ) +{ + BiffFragmentType eFragment = BIFF_FRAGMENT_UNKNOWN; + /* #i23425# Don't rely on BOF record ID to read BOF contents, but on + the detected BIFF version. */ + if( isBofRecord() ) + { + // BOF is always written unencrypted + mrStrm.enableDecoder( false ); + mrStrm.skip( 2 ); + sal_uInt16 nType = mrStrm.readuInt16(); + + // decide which fragment types are valid for current BIFF version + switch( eBiff ) + { + case BIFF2: switch( nType ) + { + case BIFF_BOF_CHART: eFragment = BIFF_FRAGMENT_EMPTYSHEET; break; + case BIFF_BOF_MACRO: eFragment = BIFF_FRAGMENT_MACROSHEET; break; + // #i51490# Excel interprets invalid types as worksheet + default: eFragment = BIFF_FRAGMENT_WORKSHEET; + } + break; + + case BIFF3: switch( nType ) + { + case BIFF_BOF_CHART: eFragment = BIFF_FRAGMENT_EMPTYSHEET; break; + case BIFF_BOF_MACRO: eFragment = BIFF_FRAGMENT_MACROSHEET; break; + case BIFF_BOF_WORKSPACE:eFragment = BIFF_FRAGMENT_UNKNOWN; break; + // #i51490# Excel interprets invalid types as worksheet + default: eFragment = BIFF_FRAGMENT_WORKSHEET; + }; + break; + + case BIFF4: switch( nType ) + { + case BIFF_BOF_CHART: eFragment = BIFF_FRAGMENT_EMPTYSHEET; break; + case BIFF_BOF_MACRO: eFragment = BIFF_FRAGMENT_MACROSHEET; break; + case BIFF_BOF_WORKSPACE:eFragment = BIFF_FRAGMENT_WORKSPACE; break; + // #i51490# Excel interprets invalid types as worksheet + default: eFragment = BIFF_FRAGMENT_WORKSHEET; + }; + break; + + case BIFF5: + case BIFF8: switch( nType ) + { + case BIFF_BOF_GLOBALS: eFragment = BIFF_FRAGMENT_GLOBALS; break; + case BIFF_BOF_CHART: eFragment = BIFF_FRAGMENT_CHARTSHEET; break; + case BIFF_BOF_MACRO: eFragment = BIFF_FRAGMENT_MACROSHEET; break; + case BIFF_BOF_MODULE: eFragment = BIFF_FRAGMENT_MODULESHEET; break; + case BIFF_BOF_WORKSPACE:eFragment = BIFF_FRAGMENT_UNKNOWN; break; + // #i51490# Excel interprets invalid types as worksheet + default: eFragment = BIFF_FRAGMENT_WORKSHEET; + }; + break; + + case BIFF_UNKNOWN: break; + } + } + return eFragment; +} + +// ============================================================================ + +BiffWorkbookFragmentBase::BiffWorkbookFragmentBase( const WorkbookHelper& rHelper, const OUString& rStrmName, bool bCloneDecoder ) : + BiffFragmentHandler( rHelper.getBaseFilter(), rStrmName ), + WorkbookHelper( rHelper ) +{ + if( bCloneDecoder ) + getCodecHelper().cloneDecoder( mrStrm ); +} + +// ============================================================================ + +BiffWorksheetFragmentBase::BiffWorksheetFragmentBase( const BiffWorkbookFragmentBase& rParent, + ISegmentProgressBarRef xProgressBar, WorksheetType eSheetType, sal_Int16 nSheet ) : + BiffFragmentHandler( rParent ), + WorksheetHelperRoot( rParent, xProgressBar, eSheetType, nSheet ) +{ +} + +// ============================================================================ + +BiffSkipWorksheetFragment::BiffSkipWorksheetFragment( + const BiffWorkbookFragmentBase& rParent, ISegmentProgressBarRef xProgressBar, sal_Int16 nSheet ) : + BiffWorksheetFragmentBase( rParent, xProgressBar, SHEETTYPE_EMPTYSHEET, nSheet ) +{ +} + +bool BiffSkipWorksheetFragment::importFragment() +{ + return skipFragment(); +} + +// ============================================================================ +// ============================================================================ + +} // namespace xls +} // namespace oox + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |