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27*cdf0e10cSrcweir 
28*cdf0e10cSrcweir // MARKER(update_precomp.py): autogen include statement, do not remove
29*cdf0e10cSrcweir #include "precompiled_slideshow.hxx"
30*cdf0e10cSrcweir 
31*cdf0e10cSrcweir #include <canvas/debug.hxx>
32*cdf0e10cSrcweir #include <basegfx/matrix/b2dhommatrix.hxx>
33*cdf0e10cSrcweir #include <basegfx/point/b2dpoint.hxx>
34*cdf0e10cSrcweir #include <basegfx/numeric/ftools.hxx>
35*cdf0e10cSrcweir #include <basegfx/matrix/b2dhommatrixtools.hxx>
36*cdf0e10cSrcweir #include "clockwipe.hxx"
37*cdf0e10cSrcweir 
38*cdf0e10cSrcweir 
39*cdf0e10cSrcweir namespace slideshow {
40*cdf0e10cSrcweir namespace internal {
41*cdf0e10cSrcweir 
42*cdf0e10cSrcweir ::basegfx::B2DPolygon ClockWipe::calcCenteredClock( double t, double e )
43*cdf0e10cSrcweir {
44*cdf0e10cSrcweir     ::basegfx::B2DPolygon poly;
45*cdf0e10cSrcweir     ::basegfx::B2DHomMatrix aTransform;
46*cdf0e10cSrcweir     aTransform.rotate( t * 2.0 * M_PI );
47*cdf0e10cSrcweir     const double MAX_EDGE = 2.0;
48*cdf0e10cSrcweir     ::basegfx::B2DPoint p( 0.0, -MAX_EDGE );
49*cdf0e10cSrcweir     p *= aTransform;
50*cdf0e10cSrcweir     poly.append( p );
51*cdf0e10cSrcweir     if (t >= 0.875)
52*cdf0e10cSrcweir         poly.append( ::basegfx::B2DPoint( -e, -e ) );
53*cdf0e10cSrcweir     if (t >= 0.625)
54*cdf0e10cSrcweir         poly.append( ::basegfx::B2DPoint( -e, e ) );
55*cdf0e10cSrcweir     if (t >= 0.375)
56*cdf0e10cSrcweir         poly.append( ::basegfx::B2DPoint( e, e ) );
57*cdf0e10cSrcweir     if (t >= 0.125)
58*cdf0e10cSrcweir         poly.append( ::basegfx::B2DPoint( e, -e ) );
59*cdf0e10cSrcweir     poly.append( ::basegfx::B2DPoint( 0.0, -e ) );
60*cdf0e10cSrcweir     poly.append( ::basegfx::B2DPoint( 0.0, 0.0 ) );
61*cdf0e10cSrcweir     poly.setClosed(true);
62*cdf0e10cSrcweir     return poly;
63*cdf0e10cSrcweir }
64*cdf0e10cSrcweir 
65*cdf0e10cSrcweir ::basegfx::B2DPolyPolygon ClockWipe::operator () ( double t )
66*cdf0e10cSrcweir {
67*cdf0e10cSrcweir     const basegfx::B2DHomMatrix aTransform(basegfx::tools::createScaleTranslateB2DHomMatrix(0.5, 0.5, 0.5, 0.5));
68*cdf0e10cSrcweir     ::basegfx::B2DPolygon poly( calcCenteredClock(t) );
69*cdf0e10cSrcweir     poly.transform( aTransform );
70*cdf0e10cSrcweir     return ::basegfx::B2DPolyPolygon(poly);
71*cdf0e10cSrcweir }
72*cdf0e10cSrcweir 
73*cdf0e10cSrcweir }
74*cdf0e10cSrcweir }
75