slideshow/source/inc/slidebitmap.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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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 { namespace sun { namespace star { namespace rendering
  33 {
  34     class XBitmap;
  35 } } } }
  36
  37
  38 /* Definition of SlideBitmap class */
  39
  40 namespace slideshow
  41 {
  42     namespace internal
  43     {
  44
  45         /** Little wrapper encapsulating an XBitmap
  46
  47             This is to insulate us from changes to the preferred
  48             transport format for bitmaps (using a sole XBitmap here is
  49             a hack, since it is not guaranteed to work, or to work
  50             without data loss, across different canvases). And since
  51             we don't want to revert to a VCL Bitmap here, have to wait
  52             until basegfx bitmap tooling is ready.
  53
  54             TODO(F2): Add support for Canvas-independent bitmaps
  55             here. Then, Slide::getInitialSlideBitmap and
  56             Slide::getFinalSlideBitmap must also be adapted (they no
  57             longer need a Canvas ptr, which is actually a hack now).
  58          */
  59         class SlideBitmap
  60         {
  61         public:
  62             explicit SlideBitmap( const ::cppcanvas::BitmapSharedPtr& rBitmap );
  63             SlideBitmap(const SlideBitmap&) = delete;
  64             SlideBitmap& operator=(const SlideBitmap&) = delete;
  65
  66             bool                draw( const ::cppcanvas::CanvasSharedPtr& rCanvas ) const;
  67             ::basegfx::B2ISize  getSize() const;
  68             void                move( const ::basegfx::B2DPoint& rNewPos );
  69             void                clip( const ::basegfx::B2DPolyPolygon& rClipPoly );
  70
  71             const css::uno::Reference< css::rendering::XBitmap >&  getXBitmap();
  72
  73         private:
  74             ::basegfx::B2DPoint                                     maOutputPos;
  75             ::basegfx::B2DPolyPolygon                               maClipPoly;
  76
  77             // TODO(Q2): Remove UNO bitmap as the transport medium
  78             css::uno::Reference< css::rendering::XBitmap >          mxBitmap;
  79         };
  80
  81         typedef ::std::shared_ptr< SlideBitmap > SlideBitmapSharedPtr;
  82     }
  83 }
  84
  85 #endif // INCLUDED_SLIDESHOW_SOURCE_INC_SLIDEBITMAP_HXX
  86
  87 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */