slideshow/source/engine/transitions/spiralwipe.hxx

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  19
  20 #ifndef INCLUDED_SLIDESHOW_SOURCE_ENGINE_TRANSITIONS_SPIRALWIPE_HXX
  21 #define INCLUDED_SLIDESHOW_SOURCE_ENGINE_TRANSITIONS_SPIRALWIPE_HXX
  22
  23 #include "parametricpolypolygon.hxx"
  24
  25
  26 namespace slideshow::internal {
  27
  28 /// Generates a topLeftClockWise or
  29 /// bottomLeftCounterClockWise (flipOnYAxis=true) spiral wipe:
  30 class SpiralWipe : public ParametricPolyPolygon
  31 {
  32 public:
  33     SpiralWipe( sal_Int32 nElements, bool flipOnYAxis = false );
  34     virtual ::basegfx::B2DPolyPolygon operator () ( double t ) override;
  35 protected:
  36     ::basegfx::B2DPolyPolygon calcNegSpiral( double t ) const;
  37
  38     const sal_Int32 m_elements;
  39     const sal_Int32 m_sqrtElements;
  40     const bool m_flipOnYAxis;
  41 };
  42
  43 /// Generates a twoBoxLeft or fourBoxHorizontal wipe:
  44 class BoxSnakesWipe : public SpiralWipe
  45 {
  46 public:
  47     BoxSnakesWipe( sal_Int32 nElements, bool fourBox )
  48         : SpiralWipe(nElements), m_fourBox(fourBox) {}
  49     virtual ::basegfx::B2DPolyPolygon operator () ( double t ) override;
  50 private:
  51     const bool m_fourBox;
  52 };
  53
  54
  55 }
  56
  57 #endif // INCLUDED_SLIDESHOW_SOURCE_ENGINE_TRANSITIONS_SPIRALWIPE_HXX
  58
  59 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */