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21 
22 
23 
24 #if ! defined INCLUDED_SLIDESHOW_BARNDOORWIPE_HXX
25 #define INCLUDED_SLIDESHOW_BARNDOORWIPE_HXX
26 
27 #include <basegfx/polygon/b2dpolygon.hxx>
28 
29 #include "parametricpolypolygon.hxx"
30 #include "transitiontools.hxx"
31 
32 
33 namespace slideshow {
34 namespace internal {
35 
36 /// Generate a barn door wipe or double barn door wipe:
37 class BarnDoorWipe : public ParametricPolyPolygon
38 {
39 public:
BarnDoorWipe(bool doubled=false)40     BarnDoorWipe( bool doubled = false )
41         : m_unitRect( createUnitRect() ), m_doubled(doubled) {}
42     virtual ::basegfx::B2DPolyPolygon operator()( double x );
43 private:
44     const ::basegfx::B2DPolygon m_unitRect;
45     const bool m_doubled;
46 };
47 
48 }
49 }
50 
51 #endif /* INCLUDED_SLIDESHOW_BARNDOORWIPE_HXX */
52