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Diffstat (limited to 'oox/inc/oox/xls/excelhandlers.hxx')
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diff --git a/oox/inc/oox/xls/excelhandlers.hxx b/oox/inc/oox/xls/excelhandlers.hxx new file mode 100644 index 000000000000..864f5f9a9e44 --- /dev/null +++ b/oox/inc/oox/xls/excelhandlers.hxx @@ -0,0 +1,307 @@ +/************************************************************************* + * + * 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. + * + ************************************************************************/ + +#ifndef OOX_XLS_EXCELHANDLERS_HXX +#define OOX_XLS_EXCELHANDLERS_HXX + +#include "oox/core/fragmenthandler2.hxx" +#include "oox/xls/worksheethelper.hxx" + +namespace oox { +namespace xls { + +// ============================================================================ +// ============================================================================ + +/** Context handler derived from the WorkbookHelper helper class. + + Used to import contexts in global workbook fragments. + */ +class WorkbookContextBase : public ::oox::core::ContextHandler2, public WorkbookHelper +{ +public: + template< typename ParentType > + explicit WorkbookContextBase( ParentType& rParent ); +}; + +// ---------------------------------------------------------------------------- + +template< typename ParentType > +WorkbookContextBase::WorkbookContextBase( ParentType& rParent ) : + ::oox::core::ContextHandler2( rParent ), + WorkbookHelper( rParent ) +{ +} + +// ============================================================================ + +/** Context handler derived from the WorksheetHelper helper class. + + Used to import contexts in sheet fragments. + */ +class WorksheetContextBase : public ::oox::core::ContextHandler2, public WorksheetHelperRoot +{ +public: + template< typename ParentType > + explicit WorksheetContextBase( + ParentType& rParent, + const ISegmentProgressBarRef& rxProgressBar, + WorksheetType eSheetType, + sal_Int16 nSheet ); + + template< typename ParentType > + explicit WorksheetContextBase( ParentType& rParent ); +}; + +// ---------------------------------------------------------------------------- + +template< typename ParentType > +WorksheetContextBase::WorksheetContextBase( ParentType& rParent, + const ISegmentProgressBarRef& rxProgressBar, WorksheetType eSheetType, sal_Int16 nSheet ) : + ::oox::core::ContextHandler2( rParent ), + WorksheetHelperRoot( rParent, rxProgressBar, eSheetType, nSheet ) +{ +} + +template< typename ParentType > +WorksheetContextBase::WorksheetContextBase( ParentType& rParent ) : + ::oox::core::ContextHandler2( rParent ), + WorksheetHelperRoot( rParent ) +{ +} + +// ============================================================================ + +/** Fragment handler derived from the WorkbookHelper helper class. + + Used to import global workbook fragments. + */ +class WorkbookFragmentBase : public ::oox::core::FragmentHandler2, public WorkbookHelper +{ +public: + explicit WorkbookFragmentBase( + const WorkbookHelper& rHelper, + const ::rtl::OUString& rFragmentPath ); +}; + +// ============================================================================ + +/** Fragment handler derived from the WorksheetHelper helper class. + + Used to import sheet fragments. + */ +class WorksheetFragmentBase : public ::oox::core::FragmentHandler2, public WorksheetHelperRoot +{ +public: + explicit WorksheetFragmentBase( + const WorkbookHelper& rHelper, + const ::rtl::OUString& rFragmentPath, + const ISegmentProgressBarRef& rxProgressBar, + WorksheetType eSheetType, + sal_Int16 nSheet ); + + explicit WorksheetFragmentBase( + const WorksheetHelper& rHelper, + const ::rtl::OUString& rFragmentPath ); +}; + +// ============================================================================ +// ============================================================================ + +/** Base class for all BIFF context handlers. + + Derived handlers have to implement the importRecord() function that has to + import the record the passed BIFF input stream currently points to. + */ +class BiffContextHandler +{ +public: + virtual ~BiffContextHandler(); + + /** Derived classes have to implement importing the current record. */ + virtual void importRecord( BiffInputStream& rStrm ) = 0; +}; + +// ---------------------------------------------------------------------------- + +/** Context handler derived from the WorkbookHelper helper class. + + Used to import contexts in global workbook fragments. + */ +class BiffWorkbookContextBase : public BiffContextHandler, public WorkbookHelper +{ +protected: + explicit BiffWorkbookContextBase( const WorkbookHelper& rHelper ); +}; + +// ---------------------------------------------------------------------------- + +/** Context handler derived from the WorksheetHelper helper class. + + Used to import contexts in sheet fragments. + */ +class BiffWorksheetContextBase : public BiffContextHandler, public WorksheetHelperRoot +{ +protected: + explicit BiffWorksheetContextBase( + const WorkbookHelper& rHelper, + const ISegmentProgressBarRef& rxProgressBar, + WorksheetType eSheetType, + sal_Int16 nSheet ); + + explicit BiffWorksheetContextBase( const WorksheetHelper& rHelper ); +}; + +// ============================================================================ + +/** An enumeration for all types of fragments in a BIFF workbook stream. */ +enum BiffFragmentType +{ + BIFF_FRAGMENT_GLOBALS, /// Workbook globals fragment. + BIFF_FRAGMENT_WORKSHEET, /// Worksheet fragment. + BIFF_FRAGMENT_CHARTSHEET, /// Chart sheet fragment. + BIFF_FRAGMENT_MACROSHEET, /// Macro sheet fragment. + BIFF_FRAGMENT_MODULESHEET, /// BIFF5 VB module fragment. + BIFF_FRAGMENT_EMPTYSHEET, /// Sheet fragment of unsupported type. + BIFF_FRAGMENT_WORKSPACE, /// BIFF4 workspace/workbook globals. + BIFF_FRAGMENT_UNKNOWN /// Unknown fragment/error. +}; + +// ---------------------------------------------------------------------------- + +class BiffFragmentHandler +{ +public: + /** Opens the stream with the passed full name. */ + explicit BiffFragmentHandler( + const ::oox::core::FilterBase& rFilter, + const ::rtl::OUString& rStrmName ); + + virtual ~BiffFragmentHandler(); + + /** Imports the fragment, returns true, if EOF record has been reached. */ + virtual bool importFragment() = 0; + +protected: + /** Returns the BIFF input stream of this fragment. */ + inline BiffInputStream& getInputStream() { return *mxBiffStrm; } + + /** Starts a new fragment in a workbbok stream and returns the fragment type. + + The passed stream must point before a BOF record. The function will + try to start the next record and read the contents of the BOF record, + if extant. + + @return Fragment type according to the imported BOF record. + */ + BiffFragmentType startFragment( BiffType eBiff ); + + /** Starts a new fragment at a specific position in the workbbok stream and + returns the fragment type. + + The passed record handle must specify the stream position of the BOF + record of the fragment substream. The function will try to start the + next record and read the contents of the BOF record, if extant. + + @return Fragment type according to the imported BOF record. + */ + BiffFragmentType startFragment( BiffType eBiff, sal_Int64 nRecHandle ); + + /** Skips the current fragment up to its trailing EOF record. + + Skips all records until next EOF record. When this function returns, + stream points to the EOF record, and the next call of startNextRecord() + at the stream will start the record following the EOF record. + + Embedded fragments enclosed in BOF/EOF records (e.g. embedded chart + objects) are skipped correctly. + + @return True = stream points to the EOF record of the current fragment. + */ + bool skipFragment(); + +private: + typedef ::boost::shared_ptr< BinaryXInputStream > XInputStreamRef; + typedef ::boost::shared_ptr< BiffInputStream > BiffInputStreamRef; + + XInputStreamRef mxXInStrm; + BiffInputStreamRef mxBiffStrm; +}; + +// ---------------------------------------------------------------------------- + +/** Fragment handler derived from the WorkbookHelper helper class. + + Used to import global workbook fragments. + */ +class BiffWorkbookFragmentBase : public BiffFragmentHandler, public WorkbookHelper +{ +protected: + explicit BiffWorkbookFragmentBase( + const WorkbookHelper& rHelper, + const ::rtl::OUString& rStrmName, + bool bCloneDecoder = false ); +}; + +// ---------------------------------------------------------------------------- + +/** Fragment handler derived from the WorksheetHelper helper class. + + Used to import sheet fragments. + */ +class BiffWorksheetFragmentBase : public BiffFragmentHandler, public WorksheetHelperRoot +{ +protected: + explicit BiffWorksheetFragmentBase( + const BiffWorkbookFragmentBase& rParent, + const ISegmentProgressBarRef& rxProgressBar, + WorksheetType eSheetType, + sal_Int16 nSheet ); +}; + +// ---------------------------------------------------------------------------- + +/** Special fragment handler for worksheets that have to be skipped. + */ +class BiffSkipWorksheetFragment : public BiffWorksheetFragmentBase +{ +public: + explicit BiffSkipWorksheetFragment( + const BiffWorkbookFragmentBase& rParent, + const ISegmentProgressBarRef& rxProgressBar, + sal_Int16 nSheet ); + + virtual bool importFragment(); +}; + +// ============================================================================ +// ============================================================================ + +} // namespace xls +} // namespace oox + +#endif |