slideshow/source/engine/transitions/checkerboardwipe.hxx

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  30
  31 #if ! defined INCLUDED_SLIDESHOW_CHECKERBOARDWIPE_HXX
  32 #define INCLUDED_SLIDESHOW_CHECKERBOARDWIPE_HXX
  33
  34 #include <osl/diagnose.h>
  35
  36 #include "transitiontools.hxx"
  37 #include "parametricpolypolygon.hxx"
  38
  39
  40 namespace slideshow {
  41 namespace internal {
  42
  43 /// Generate a check board wipe (across)
  44 class CheckerBoardWipe : public ParametricPolyPolygon
  45 {
  46 public:
  47     CheckerBoardWipe( sal_Int32 unitsPerEdge = 10 )
  48         : m_unitsPerEdge(unitsPerEdge),
  49           m_unitRect( createUnitRect() )
  50         { OSL_ASSERT( (unitsPerEdge % 2) == 0 ); }
  51     virtual ::basegfx::B2DPolyPolygon operator () ( double x );
  52 private:
  53     const sal_Int32 m_unitsPerEdge;
  54     const ::basegfx::B2DPolyPolygon m_unitRect;
  55 };
  56
  57 }
  58 }
  59
  60 #endif /* INCLUDED_SLIDESHOW_CHECKERBOARDWIPE_HXX */