slideshow/source/engine/transitions/snakewipe.hxx

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  19
  20 #ifndef INCLUDED_SLIDESHOW_SOURCE_ENGINE_TRANSITIONS_SNAKEWIPE_HXX
  21 #define INCLUDED_SLIDESHOW_SOURCE_ENGINE_TRANSITIONS_SNAKEWIPE_HXX
  22
  23 #include "parametricpolypolygon.hxx"
  24
  25 #include <basegfx/numeric/ftools.hxx>
  26 #include <basegfx/point/b2dpoint.hxx>
  27
  28
  29 namespace slideshow {
  30 namespace internal {
  31
  32 /// Generates a snake wipe:
  33 class SnakeWipe : public ParametricPolyPolygon
  34 {
  35 public:
  36     SnakeWipe( sal_Int32 nElements, bool diagonal, bool flipOnYAxis );
  37     virtual ::basegfx::B2DPolyPolygon operator () ( double t ) override;
  38
  39 protected:
  40     // topLeftHorizontal:
  41     ::basegfx::B2DPolyPolygon calcSnake( double t ) const;
  42     // topLeftDiagonal:
  43     ::basegfx::B2DPolyPolygon calcHalfDiagonalSnake( double t, bool in ) const;
  44
  45     const sal_Int32 m_sqrtElements;
  46     const double m_elementEdge;
  47     const bool m_diagonal;
  48     const bool m_flipOnYAxis;
  49 };
  50
  51 /// Generates a parallel snakes wipe:
  52 class ParallelSnakesWipe : public SnakeWipe
  53 {
  54 public:
  55     ParallelSnakesWipe( sal_Int32 nElements,
  56                         bool diagonal, bool flipOnYAxis, bool opposite )
  57         : SnakeWipe( nElements, diagonal, flipOnYAxis ),
  58           m_opposite( opposite )
  59         {}
  60     virtual ::basegfx::B2DPolyPolygon operator () ( double t ) override;
  61 private:
  62     const bool m_opposite;
  63 };
  64
  65 }
  66 }
  67
  68 #endif // INCLUDED_SLIDESHOW_SOURCE_ENGINE_TRANSITIONS_SNAKEWIPE_HXX
  69
  70 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */