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21 
22 
23 
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_slideshow.hxx"
26 
27 #include <canvas/debug.hxx>
28 #include <basegfx/matrix/b2dhommatrix.hxx>
29 #include <basegfx/numeric/ftools.hxx>
30 #include <basegfx/matrix/b2dhommatrixtools.hxx>
31 #include "clockwipe.hxx"
32 #include "pinwheelwipe.hxx"
33 
34 
35 namespace slideshow {
36 namespace internal {
37 
operator ()(double t)38 ::basegfx::B2DPolyPolygon PinWheelWipe::operator () ( double t )
39 {
40     ::basegfx::B2DPolygon poly( ClockWipe::calcCenteredClock(
41                                     t / m_blades,
42                                     2.0 /* max edge when rotating */ ) );
43     ::basegfx::B2DPolyPolygon res;
44     for ( sal_Int32 i = m_blades; i--; )
45     {
46         ::basegfx::B2DPolygon p(poly);
47         p.transform(basegfx::tools::createRotateB2DHomMatrix((i * 2.0 * M_PI) / m_blades));
48         res.append( p );
49     }
50     res.transform(basegfx::tools::createScaleTranslateB2DHomMatrix(0.5, 0.5, 0.5, 0.5));
51     return res;
52 }
53 
54 }
55 }
56