xref: /trunk/main/slideshow/source/engine/transitions/checkerboardwipe.hxx (revision b3b486c6f12b7baba6a5d71c7012f6454f487e5a)
1 /**************************************************************
2  *
3  * Licensed to the Apache Software Foundation (ASF) under one
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5  * distributed with this work for additional information
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11  *   http://www.apache.org/licenses/LICENSE-2.0
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20  *************************************************************/
21 
22 #if ! defined INCLUDED_SLIDESHOW_CHECKERBOARDWIPE_HXX
23 #define INCLUDED_SLIDESHOW_CHECKERBOARDWIPE_HXX
24 
25 #include <osl/diagnose.h>
26 
27 #include "transitiontools.hxx"
28 #include "parametricpolypolygon.hxx"
29 
30 namespace slideshow {
31 namespace internal {
32 
33 // Generate a check board wipe (across)
34 class CheckerBoardWipe : public ParametricPolyPolygon
35 {
36 public:
37     CheckerBoardWipe( sal_Int32 unitsPerEdge = 10 )
38         : m_unitsPerEdge(unitsPerEdge),
39           m_unitRect( createUnitRect() )
40         { OSL_ASSERT( (unitsPerEdge % 2) == 0 ); }
41     virtual ::basegfx::B2DPolyPolygon operator () ( double x );
42 private:
43     const sal_Int32 m_unitsPerEdge;
44     const ::basegfx::B2DPolyPolygon m_unitRect;
45 };
46 
47 }
48 }
49 
50 #endif /* INCLUDED_SLIDESHOW_CHECKERBOARDWIPE_HXX */
51 
52 /* vim: set noet sw=4 ts=4: */
53