axbinarywriter.hxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */
 
#ifndef INCLUDED_OOX_OLE_AXBINARYWRITER_HXX
#define INCLUDED_OOX_OLE_AXBINARYWRITER_HXX
 
#include <cstddef>
#include <utility>
 
#include <oox/helper/binaryoutputstream.hxx>
#include <oox/helper/binarystreambase.hxx>
#include <oox/helper/refvector.hxx>
#include <rtl/ustring.hxx>
#include <sal/types.h>
 
namespace oox::ole {
 
 
class AxAlignedOutputStream final : public BinaryOutputStream
{
public:
    explicit            AxAlignedOutputStream( BinaryOutputStream& rOutStrm );
 
    virtual sal_Int64   size() const override;
    virtual sal_Int64   tell() const override;
    virtual void        seek( sal_Int64 nPos ) override;
    virtual void        close() override;
 
    virtual void writeData( const StreamDataSequence& orData, size_t nAtomSize = 1 ) override;
    virtual void   writeMemory( const void* pMem, sal_Int32 nBytes, size_t nAtomSize = 1 ) override;
 
    void                align( size_t nSize );
 
    void         pad( sal_Int32 nBytes );
 
    template< typename Type >
    void         writeAligned( Type nVal ) { align( sizeof( Type ) ); writeValue( nVal ); }
 
private:
    BinaryOutputStream*  mpOutStrm;           
    sal_Int64           mnStrmPos;          
    sal_Int64           mnStrmSize;         
    sal_Int64           mnWrappedBeginPos;     
};
 
typedef ::std::pair< sal_Int32, sal_Int32 > AxPairData;
 
class AxBinaryPropertyWriter
{
public:
    explicit            AxBinaryPropertyWriter( BinaryOutputStream& rOutStrm, bool b64BitPropFlags = false );
 
    template< typename StreamType, typename DataType >
    void                writeIntProperty( DataType ornValue )
                            { startNextProperty(); maOutStrm.writeAligned< StreamType >( ornValue ); }
    void                writeBoolProperty( bool orbValue );
    void                writePairProperty( AxPairData& orPairData );
    void                writeStringProperty( OUString& orValue );
 
    void                skipProperty() { startNextProperty( true ); }
 
    void                finalizeExport();
 
private:
    bool                ensureValid();
    void                startNextProperty( bool bSkip = false );
 
private:
    struct ComplexProperty
    {
        virtual             ~ComplexProperty();
        virtual bool        writeProperty( AxAlignedOutputStream& rOutStrm ) = 0;
    };
 
    struct PairProperty final : public ComplexProperty
    {
    private:
        AxPairData&         mrPairData;
 
    public:
        explicit            PairProperty( AxPairData& rPairData ) :
                                mrPairData( rPairData ) {}
        virtual bool        writeProperty( AxAlignedOutputStream& rOutStrm ) override;
    };
 
    struct StringProperty final : public ComplexProperty
    {
    private:
        OUString&    mrValue;
        sal_uInt32          mnSize;
    public:
        explicit            StringProperty( OUString& rValue, sal_uInt32 nSize ) :
                                mrValue( rValue ), mnSize( nSize ) {}
        virtual bool        writeProperty( AxAlignedOutputStream& rOutStrm ) override;
    };
 
    struct PictureProperty final : public ComplexProperty
    {
        virtual bool        writeProperty( AxAlignedOutputStream& rOutStrm ) override;
    };
 
    typedef RefVector< ComplexProperty > ComplexPropVector;
 
private:
    AxAlignedOutputStream maOutStrm;        
    ComplexPropVector   maLargeProps;       
    ComplexPropVector   maStreamProps;      
    sal_Int16           mnBlockSize;
    sal_Int64           mnPropFlagsStart;     
    sal_Int64           mnPropFlags;        
    sal_Int64           mnNextProp;         
    bool                mbValid;            
    bool                mb64BitPropFlags;
};
 
 
} // namespace oox::ole
 
#endif
 
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