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Diffstat (limited to 'oox/source/xls/bifffragmenthandler.cxx')
| -rw-r--r-- | oox/source/xls/bifffragmenthandler.cxx | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/oox/source/xls/bifffragmenthandler.cxx b/oox/source/xls/bifffragmenthandler.cxx new file mode 100644 index 000000000000..061e213b1092 --- /dev/null +++ b/oox/source/xls/bifffragmenthandler.cxx @@ -0,0 +1,169 @@ +/************************************************************************* + * + * OpenOffice.org - a multi-platform office productivity suite + * + * $RCSfile: bifffragmenthandler.cxx,v $ + * + * $Revision: 1.2 $ + * + * last change: $Author: rt $ $Date: 2008-01-17 08:06:08 $ + * + * The Contents of this file are made available subject to + * the terms of GNU Lesser General Public License Version 2.1. + * + * + * GNU Lesser General Public License Version 2.1 + * ============================================= + * Copyright 2005 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 + * + ************************************************************************/ + +#include "oox/xls/bifffragmenthandler.hxx" +#include "oox/xls/biffhelper.hxx" +#include "oox/xls/biffinputstream.hxx" + +namespace oox { +namespace xls { + +// ============================================================================ + +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 + +// ============================================================================ + +BiffFragmentHandler::~BiffFragmentHandler() +{ +} + +bool BiffFragmentHandler::importFragment( BiffInputStream& rStrm ) +{ + // default implementation: skip the entire fragment + return skipFragment( rStrm ); +} + +bool BiffFragmentHandler::isBofRecord( sal_uInt16 nRecId ) +{ + return (nRecId == BIFF2_ID_BOF) || (nRecId == BIFF3_ID_BOF) || (nRecId == BIFF4_ID_BOF) || (nRecId == BIFF5_ID_BOF); +} + +BiffFragmentType BiffFragmentHandler::startFragment( BiffInputStream& rStrm, BiffType eBiff ) +{ + BiffFragmentType eFragment = BIFF_FRAGMENT_UNKNOWN; + if( rStrm.startNextRecord() ) + { + /* #i23425# Don't rely on BOF record ID to read BOF contents, but on + the detected BIFF version. */ + if( isBofRecord( rStrm.getRecId() ) ) + { + // BOF is always written unencrypted + rStrm.enableDecoder( false ); + sal_uInt16 nType = rStrm.skip( 2 ).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_MACRO; 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_MACRO; 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_MACRO; 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_CHART; break; + case BIFF_BOF_MACRO: eFragment = BIFF_FRAGMENT_MACRO; 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; +} + +bool BiffFragmentHandler::skipFragment( BiffInputStream& rStrm ) +{ + while( rStrm.startNextRecord() && (rStrm.getRecId() != BIFF_ID_EOF) ) + if( isBofRecord( rStrm.getRecId() ) ) + skipFragment( rStrm ); + return rStrm.isValid() && (rStrm.getRecId() == BIFF_ID_EOF); +} + +// ============================================================================ + +BiffWorkbookFragmentBase::BiffWorkbookFragmentBase( const WorkbookHelper& rHelper ) : + WorkbookHelper( rHelper ) +{ +} + +// ============================================================================ + +BiffWorksheetFragmentBase::BiffWorksheetFragmentBase( const WorkbookHelper& rHelper, + ISegmentProgressBarRef xProgressBar, WorksheetType eSheetType, sal_Int32 nSheet ) : + WorksheetHelperRoot( rHelper, xProgressBar, eSheetType, nSheet ) +{ +} + +BiffWorksheetFragmentBase::BiffWorksheetFragmentBase( const WorksheetHelper& rHelper ) : + WorksheetHelperRoot( rHelper ) +{ +} + +// ============================================================================ + +} // namespace xls +} // namespace oox + |