svtools/inc/jpeg.hxx

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  30
  31 #ifndef _JPEG_HXX
  32 #define _JPEG_HXX
  33
  34 #ifndef _GRAPH_HXX
  35 #include <vcl/graph.hxx>
  36 #endif
  37 #include <svtools/fltcall.hxx>
  38 #include <com/sun/star/uno/Sequence.h>
  39 #include <com/sun/star/beans/PropertyValue.hpp>
  40 #include <com/sun/star/task/XStatusIndicator.hpp>
  41
  42 #ifdef _JPEGPRIVATE
  43
  44 // --------
  45 // - Enum -
  46 // --------
  47
  48 enum ReadState
  49 {
  50     JPEGREAD_OK,
  51     JPEGREAD_ERROR,
  52     JPEGREAD_NEED_MORE
  53 };
  54
  55 // --------------
  56 // - JPEGReader -
  57 // --------------
  58
  59 class JPEGReader : public GraphicReader
  60 {
  61     SvStream&                   rIStm;
  62     Bitmap                              aBmp;
  63     Bitmap                              aBmp1;
  64     BitmapWriteAccess*  pAcc;
  65     BitmapWriteAccess*  pAcc1;
  66     void*                               pBuffer;
  67     long                                nLastPos;
  68     long                                nFormerPos;
  69     long                                nLastLines;
  70     sal_Bool            bSetLogSize;
  71
  72     Graphic                             CreateIntermediateGraphic( const Bitmap& rBitmap, long nLines );
  73     void                                FillBitmap();
  74
  75 public:
  76
  77     void*                               CreateBitmap( void* JPEGCreateBitmapParam );
  78
  79 public:
  80
  81
  82
  83                         JPEGReader( SvStream& rStm, void* pCallData, sal_Bool bSetLogSize );
  84     virtual                             ~JPEGReader();
  85
  86
  87     ReadState                   Read( Graphic& rGraphic );
  88 };
  89
  90 // --------------
  91 // - JPEGWriter -
  92 // --------------
  93
  94 class JPEGWriter
  95 {
  96     SvStream&                   rOStm;
  97     Bitmap                              aBmp;
  98     BitmapReadAccess*   pAcc;
  99     BYTE*                               pBuffer;
 100     BOOL                                bNative;
 101
 102     sal_Bool                    bGreys;
 103     sal_Int32                   nQuality;
 104
 105     com::sun::star::uno::Reference< com::sun::star::task::XStatusIndicator > xStatusIndicator;
 106
 107 public:
 108
 109     void*                               GetScanline( long nY );
 110
 111                         JPEGWriter( SvStream& rOStm, const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >* pFilterData );
 112                         ~JPEGWriter() {};
 113
 114     BOOL                                Write( const Graphic& rGraphic );
 115 };
 116
 117 #endif // _JPEGPRIVATE
 118
 119 // ---------------------
 120 // - Import/ExportJPEG -
 121 // ---------------------
 122
 123 BOOL ImportJPEG( SvStream& rStream, Graphic& rGraphic, void* pCallerData, sal_Int32 nImportFlags );
 124
 125 BOOL ExportJPEG( SvStream& rStream, const Graphic& rGraphic, const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >* pFilterData );
 126
 127 #endif // _JPEG_HXX