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27 
28 #ifndef INCLUDED_SLIDESHOW_COMBTRANSITION_HXX
29 #define INCLUDED_SLIDESHOW_COMBTRANSITION_HXX
30 
31 #include <basegfx/polygon/b2dpolypolygon.hxx>
32 #include "slidechangebase.hxx"
33 
34 namespace slideshow {
35 namespace internal {
36 
37 /** Comb transition class.
38 
39     This class provides a SlideChangeAnimation, showing a
40     comb-like effect (stripes of alternating push effects).
41 */
42 class CombTransition : public SlideChangeBase
43 {
44 public:
45     /** Create the comb transition effect.
46 
47         @param nNumStripes
48         Number of comb-like stripes to show in this effect
49     */
50     CombTransition( ::boost::optional<SlideSharedPtr> const & leavingSlide,
51                     const SlideSharedPtr&                     pEnteringSlide,
52                     const SoundPlayerSharedPtr&               pSoundPlayer,
53                     const UnoViewContainer&                   rViewContainer,
54                     ScreenUpdater&                            rScreenUpdater,
55                     EventMultiplexer&                         rEventMultiplexer,
56                     const ::basegfx::B2DVector&               rPushDirection,
57                     sal_Int32                                 nNumStripes );
58 
59     // NumberAnimation
60     virtual bool operator()( double x );
61 
62 private:
63     const ::basegfx::B2DVector maPushDirectionUnit;
64     sal_Int32                  mnNumStripes;
65 
66     void renderComb( double t, const ViewEntry& rViewEntry ) const;
67 };
68 
69 } // namespace internal
70 } // namespace presentation
71 
72 #endif /* INCLUDED_SLIDESHOW_COMBTRANSITION_HXX */
73