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#if ! defined INCLUDED_SLIDESHOW_CHECKERBOARDWIPE_HXX
#define INCLUDED_SLIDESHOW_CHECKERBOARDWIPE_HXX

#include <osl/diagnose.h>

#include "transitiontools.hxx"
#include "parametricpolypolygon.hxx"


namespace slideshow {
namespace internal {

/// Generate a check board wipe (across)
class CheckerBoardWipe : public ParametricPolyPolygon
{
public:
    CheckerBoardWipe( sal_Int32 unitsPerEdge = 10 )
        : m_unitsPerEdge(unitsPerEdge),
          m_unitRect( createUnitRect() )
        { OSL_ASSERT( (unitsPerEdge % 2) == 0 ); }
    virtual ::basegfx::B2DPolyPolygon operator () ( double x );
private:
    const sal_Int32 m_unitsPerEdge;
    const ::basegfx::B2DPolyPolygon m_unitRect;
};

}
}

#endif /* INCLUDED_SLIDESHOW_CHECKERBOARDWIPE_HXX */