AOO410/main/svtools/source/inc/jpeg.hxx

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 * to you under the Apache License, Version 2.0 (the
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#ifndef _JPEG_HXX
#define _JPEG_HXX

#ifndef _GRAPH_HXX
#include <vcl/graph.hxx>
#endif
#include <svtools/fltcall.hxx>
#include <com/sun/star/uno/Sequence.h>
#include <com/sun/star/beans/PropertyValue.hpp>
#include <com/sun/star/task/XStatusIndicator.hpp>

#ifdef _JPEGPRIVATE

// --------
// - Enum -
// --------

enum ReadState
{
	JPEGREAD_OK,
	JPEGREAD_ERROR,
	JPEGREAD_NEED_MORE
};

// --------------
// - JPEGReader	-
// --------------

class JPEGReader : public GraphicReader
{
	SvStream&			rIStm;
	Bitmap				aBmp;
	Bitmap				aBmp1;
	BitmapWriteAccess*	pAcc;
	BitmapWriteAccess*	pAcc1;
	void*				pBuffer;
	long				nLastPos;
	long				nFormerPos;
	long				nLastLines;
    sal_Bool            bSetLogSize;

	Graphic				CreateIntermediateGraphic( const Bitmap& rBitmap, long nLines );
	void				FillBitmap();

public:

	void*				CreateBitmap( void* JPEGCreateBitmapParam );

public:



						JPEGReader( SvStream& rStm, void* pCallData, sal_Bool bSetLogSize );
	virtual				~JPEGReader();


	ReadState			Read( Graphic& rGraphic );
};

// --------------
// - JPEGWriter	-
// --------------

class JPEGWriter
{
	SvStream&			rOStm;
	Bitmap				aBmp;
	BitmapReadAccess*	pAcc;
	sal_uInt8*				pBuffer;
	sal_Bool				bNative;

	sal_Bool			bGreys;
	sal_Int32			nQuality;
	
	bool*               pExpWasGrey;

	com::sun::star::uno::Reference< com::sun::star::task::XStatusIndicator > xStatusIndicator;

public:

	void*				GetScanline( long nY );

						JPEGWriter( SvStream& rOStm, const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >* pFilterData, 
						            bool* pExportWasGrey = NULL );
						~JPEGWriter() {};

	sal_Bool				Write( const Graphic& rGraphic );
};

#endif // _JPEGPRIVATE

// ---------------------
// - Import/ExportJPEG -
// ---------------------

sal_Bool ImportJPEG( SvStream& rStream, Graphic& rGraphic, void* pCallerData, sal_Int32 nImportFlags );

sal_Bool ExportJPEG( SvStream& rStream,
                 const Graphic& rGraphic,
                 const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >* pFilterData,
                 bool* pExportWasGrey = NULL
                );

#endif // _JPEG_HXX