slideshow/source/inc/slidebitmap.hxx

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  30
  31 #ifndef INCLUDED_SLIDESHOW_SLIDEBITMAP_HXX
  32 #define INCLUDED_SLIDESHOW_SLIDEBITMAP_HXX
  33
  34 #include <com/sun/star/uno/Reference.hxx>
  35 #include <cppcanvas/canvas.hxx>
  36 #include <cppcanvas/bitmap.hxx>
  37
  38 #include <basegfx/point/b2dpoint.hxx>
  39 #include <basegfx/polygon/b2dpolypolygon.hxx>
  40
  41 #include <boost/shared_ptr.hpp>
  42 #include <boost/noncopyable.hpp>
  43
  44 namespace com { namespace sun { namespace star { namespace rendering
  45 {
  46     class XBitmap;
  47 } } } }
  48
  49
  50 /* Definition of SlideBitmap class */
  51
  52 namespace slideshow
  53 {
  54     namespace internal
  55     {
  56
  57         /** Little wrapper encapsulating an XBitmap
  58
  59             This is to insulate us from changes to the preferred
  60             transport format for bitmaps (using a sole XBitmap here is
  61             a hack, since it is not guaranteed to work, or to work
  62             without data loss, across different canvases). And since
  63             we don't want to revert to a VCL Bitmap here, have to wait
  64             until basegfx bitmap tooling is ready.
  65
  66             TODO(F2): Add support for Canvas-independent bitmaps
  67             here. Then, Slide::getInitialSlideBitmap and
  68             Slide::getFinalSlideBitmap must also be adapted (they no
  69             longer need a Canvas ptr, which is actually a hack now).
  70          */
  71         class SlideBitmap : private boost::noncopyable
  72         {
  73         public:
  74             SlideBitmap( const ::cppcanvas::BitmapSharedPtr& rBitmap );
  75
  76             bool                                draw( const ::cppcanvas::CanvasSharedPtr& rCanvas ) const;
  77             ::basegfx::B2ISize  getSize() const;
  78             ::basegfx::B2DPoint getOutputPos() const{return maOutputPos;}
  79             void                                move( const ::basegfx::B2DPoint& rNewPos );
  80             void                                clip( const ::basegfx::B2DPolyPolygon& rClipPoly );
  81
  82             ::com::sun::star::uno::Reference<
  83                 ::com::sun::star::rendering::XBitmap >    getXBitmap();
  84
  85         private:
  86             ::basegfx::B2DPoint                                                                         maOutputPos;
  87             ::basegfx::B2DPolyPolygon                                                           maClipPoly;
  88
  89             // TODO(Q2): Remove UNO bitmap as the transport medium
  90             ::com::sun::star::uno::Reference<
  91                 ::com::sun::star::rendering::XBitmap >          mxBitmap;
  92         };
  93
  94         typedef ::boost::shared_ptr< SlideBitmap > SlideBitmapSharedPtr;
  95     }
  96 }
  97
  98 #endif /* INCLUDED_SLIDESHOW_SLIDEBITMAP_HXX */