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Diffstat (limited to 'oox/source/xls/excelhandlers.cxx')
-rw-r--r-- | oox/source/xls/excelhandlers.cxx | 239 |
1 files changed, 239 insertions, 0 deletions
diff --git a/oox/source/xls/excelhandlers.cxx b/oox/source/xls/excelhandlers.cxx new file mode 100644 index 000000000000..1ffad94d52f1 --- /dev/null +++ b/oox/source/xls/excelhandlers.cxx @@ -0,0 +1,239 @@ +/************************************************************************* + * + * 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" + +namespace oox { +namespace xls { + +// ============================================================================ + +using ::oox::core::FilterBase; +using ::oox::core::FragmentHandler2; +using ::rtl::OUString; + +// ============================================================================ +// ============================================================================ + +WorkbookFragmentBase::WorkbookFragmentBase( + const WorkbookHelper& rHelper, const OUString& rFragmentPath ) : + FragmentHandler2( rHelper.getOoxFilter(), rFragmentPath ), + WorkbookHelper( rHelper ) +{ +} + +// ============================================================================ + +WorksheetFragmentBase::WorksheetFragmentBase( const WorkbookHelper& rHelper, + const OUString& rFragmentPath, const ISegmentProgressBarRef& rxProgressBar, WorksheetType eSheetType, sal_Int16 nSheet ) : + FragmentHandler2( rHelper.getOoxFilter(), rFragmentPath ), + WorksheetHelperRoot( rHelper, rxProgressBar, eSheetType, nSheet ) +{ +} + +WorksheetFragmentBase::WorksheetFragmentBase( + const WorksheetHelper& rHelper, const OUString& rFragmentPath ) : + FragmentHandler2( rHelper.getOoxFilter(), rFragmentPath ), + WorksheetHelperRoot( rHelper ) +{ +} + +// ============================================================================ +// ============================================================================ + +BiffContextHandler::~BiffContextHandler() +{ +} + +// ---------------------------------------------------------------------------- + +BiffWorkbookContextBase::BiffWorkbookContextBase( const WorkbookHelper& rHelper ) : + WorkbookHelper( rHelper ) +{ +} + +// ---------------------------------------------------------------------------- + +BiffWorksheetContextBase::BiffWorksheetContextBase( const WorkbookHelper& rHelper, + const ISegmentProgressBarRef& rxProgressBar, WorksheetType eSheetType, sal_Int16 nSheet ) : + WorksheetHelperRoot( rHelper, rxProgressBar, eSheetType, nSheet ) +{ +} + +BiffWorksheetContextBase::BiffWorksheetContextBase( const WorksheetHelper& rHelper ) : + 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. + +BiffFragmentType lclStartFragment( BiffInputStream& rStrm, 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( BiffHelper::isBofRecord( rStrm ) ) + { + // BOF is always written unencrypted + rStrm.enableDecoder( false ); + rStrm.skip( 2 ); + sal_uInt16 nType = rStrm.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; +} + +} // namespace + +// ---------------------------------------------------------------------------- + +BiffFragmentHandler::BiffFragmentHandler( const FilterBase& rFilter, const OUString& rStrmName ) +{ + // do not automatically close the root stream (indicated by empty stream name) + bool bRootStrm = rStrmName.getLength() == 0; + mxXInStrm.reset( new BinaryXInputStream( rFilter.openInputStream( rStrmName ), !bRootStrm ) ); + mxBiffStrm.reset( new BiffInputStream( *mxXInStrm ) ); +} + +BiffFragmentHandler::~BiffFragmentHandler() +{ +} + +BiffFragmentType BiffFragmentHandler::startFragment( BiffType eBiff ) +{ + return mxBiffStrm->startNextRecord() ? lclStartFragment( *mxBiffStrm, eBiff ) : BIFF_FRAGMENT_UNKNOWN; +} + +BiffFragmentType BiffFragmentHandler::startFragment( BiffType eBiff, sal_Int64 nRecHandle ) +{ + return mxBiffStrm->startRecordByHandle( nRecHandle ) ? lclStartFragment( *mxBiffStrm, eBiff ) : BIFF_FRAGMENT_UNKNOWN; +} + +bool BiffFragmentHandler::skipFragment() +{ + while( mxBiffStrm->startNextRecord() && (mxBiffStrm->getRecId() != BIFF_ID_EOF) ) + if( BiffHelper::isBofRecord( *mxBiffStrm ) ) + skipFragment(); + return !mxBiffStrm->isEof() && (mxBiffStrm->getRecId() == BIFF_ID_EOF); +} + +// ---------------------------------------------------------------------------- + +BiffWorkbookFragmentBase::BiffWorkbookFragmentBase( const WorkbookHelper& rHelper, const OUString& rStrmName, bool bCloneDecoder ) : + BiffFragmentHandler( rHelper.getBaseFilter(), rStrmName ), + WorkbookHelper( rHelper ) +{ + if( bCloneDecoder ) + getCodecHelper().cloneDecoder( getInputStream() ); +} + +// ---------------------------------------------------------------------------- + +BiffWorksheetFragmentBase::BiffWorksheetFragmentBase( const BiffWorkbookFragmentBase& rParent, + const ISegmentProgressBarRef& rxProgressBar, WorksheetType eSheetType, sal_Int16 nSheet ) : + BiffFragmentHandler( rParent ), + WorksheetHelperRoot( rParent, rxProgressBar, eSheetType, nSheet ) +{ +} + +// ---------------------------------------------------------------------------- + +BiffSkipWorksheetFragment::BiffSkipWorksheetFragment( const BiffWorkbookFragmentBase& rParent, + const ISegmentProgressBarRef& rxProgressBar, sal_Int16 nSheet ) : + BiffWorksheetFragmentBase( rParent, rxProgressBar, SHEETTYPE_EMPTYSHEET, nSheet ) +{ +} + +bool BiffSkipWorksheetFragment::importFragment() +{ + return skipFragment(); +} + +// ============================================================================ +// ============================================================================ + +} // namespace xls +} // namespace oox |