slideshow/source/engine/transitions/iriswipe.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_slideshow.hxx"
  33
  34 #include <canvas/debug.hxx>
  35 #include <basegfx/matrix/b2dhommatrix.hxx>
  36 #include "iriswipe.hxx"
  37
  38
  39 namespace slideshow {
  40 namespace internal {
  41
  42 ::basegfx::B2DPolyPolygon IrisWipe::operator () ( double t )
  43 {
  44     ::basegfx::B2DHomMatrix aTransform;
  45     aTransform.translate( -0.5, -0.5 );
  46     const double d = ::basegfx::pruneScaleValue(t);
  47     aTransform.scale( d, d );
  48     aTransform.translate( 0.5, 0.5 );
  49     ::basegfx::B2DPolyPolygon res( m_unitRect );
  50     res.transform( aTransform );
  51     return res;
  52 }
  53
  54 }
  55 }