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 #include <basegfx/numeric/ftools.hxx>
  25 #include <basegfx/point/b2dpoint.hxx>
  26
  27
  28 namespace slideshow {
  29 namespace internal {
  30
  31 /// Generates a topLeftClockWise or
  32 /// bottomLeftCounterClockWise (flipOnYAxis=true) spiral wipe:
  33 class SpiralWipe : public ParametricPolyPolygon
  34 {
  35 public:
  36     SpiralWipe( sal_Int32 nElements, bool flipOnYAxis = false );
  37     virtual ::basegfx::B2DPolyPolygon operator () ( double t ) SAL_OVERRIDE;
  38 protected:
  39     ::basegfx::B2DPolyPolygon calcNegSpiral( double t ) const;
  40
  41     const sal_Int32 m_elements;
  42     const sal_Int32 m_sqrtElements;
  43     const bool m_flipOnYAxis;
  44 };
  45
  46 /// Generates a twoBoxLeft or fourBoxHorizontal wipe:
  47 class BoxSnakesWipe : public SpiralWipe
  48 {
  49 public:
  50     BoxSnakesWipe( sal_Int32 nElements, bool fourBox = false )
  51         : SpiralWipe(nElements), m_fourBox(fourBox) {}
  52     virtual ::basegfx::B2DPolyPolygon operator () ( double t ) SAL_OVERRIDE;
  53 private:
  54     const bool m_fourBox;
  55 };
  56
  57 }
  58 }
  59
  60 #endif // INCLUDED_SLIDESHOW_SOURCE_ENGINE_TRANSITIONS_SPIRALWIPE_HXX
  61
  62 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */