slideshow/source/inc/slidebitmap.hxx

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  19
  20 #ifndef INCLUDED_SLIDESHOW_SOURCE_INC_SLIDEBITMAP_HXX
  21 #define INCLUDED_SLIDESHOW_SOURCE_INC_SLIDEBITMAP_HXX
  22
  23 #include <com/sun/star/uno/Reference.hxx>
  24 #include <cppcanvas/canvas.hxx>
  25 #include <cppcanvas/bitmap.hxx>
  26
  27 #include <basegfx/point/b2dpoint.hxx>
  28 #include <basegfx/polygon/b2dpolypolygon.hxx>
  29
  30 #include <memory>
  31
  32 namespace com::sun::star::rendering { class XBitmap; }
  33
  34
  35 /* Definition of SlideBitmap class */
  36
  37 namespace slideshow::internal
  38     {
  39
  40         /** Little wrapper encapsulating an XBitmap
  41
  42             This is to insulate us from changes to the preferred
  43             transport format for bitmaps (using a sole XBitmap here is
  44             a hack, since it is not guaranteed to work, or to work
  45             without data loss, across different canvases). And since
  46             we don't want to revert to a VCL Bitmap here, have to wait
  47             until basegfx bitmap tooling is ready.
  48
  49             TODO(F2): Add support for Canvas-independent bitmaps
  50             here. Then, Slide::getInitialSlideBitmap and
  51             Slide::getFinalSlideBitmap must also be adapted (they no
  52             longer need a Canvas ptr, which is actually a hack now).
  53          */
  54         class SlideBitmap
  55         {
  56         public:
  57             explicit SlideBitmap( const ::cppcanvas::BitmapSharedPtr& rBitmap );
  58             SlideBitmap(const SlideBitmap&) = delete;
  59             SlideBitmap& operator=(const SlideBitmap&) = delete;
  60
  61             bool                draw( const ::cppcanvas::CanvasSharedPtr& rCanvas ) const;
  62             ::basegfx::B2ISize  getSize() const;
  63             void                move( const ::basegfx::B2DPoint& rNewPos );
  64             void                clip( const ::basegfx::B2DPolyPolygon& rClipPoly );
  65
  66             const css::uno::Reference< css::rendering::XBitmap >&  getXBitmap() const;
  67
  68         private:
  69             ::basegfx::B2DPoint                                     maOutputPos;
  70             ::basegfx::B2DPolyPolygon                               maClipPoly;
  71
  72             // TODO(Q2): Remove UNO bitmap as the transport medium
  73             css::uno::Reference< css::rendering::XBitmap >          mxBitmap;
  74         };
  75
  76         typedef ::std::shared_ptr< SlideBitmap > SlideBitmapSharedPtr;
  77
  78 }
  79
  80 #endif // INCLUDED_SLIDESHOW_SOURCE_INC_SLIDEBITMAP_HXX
  81
  82 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */