xref: /aoo42x/main/slideshow/source/engine/transitions/barwipepolypolygon.cxx (revision cdf0e10c)

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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_slideshow.hxx"

#include <canvas/debug.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include "barwipepolypolygon.hxx"


namespace slideshow {
namespace internal {

::basegfx::B2DPolyPolygon BarWipePolyPolygon::operator () ( double t )
{
    ::basegfx::B2DPolyPolygon res;
    ::basegfx::B2DHomMatrix aTransform;
    aTransform.scale( ::basegfx::pruneScaleValue( t / m_nBars ), 1.0 );
    for ( sal_Int32 i = m_nBars; i--; )
    {
        ::basegfx::B2DHomMatrix transform( aTransform );
        transform.translate( static_cast<double>(i) / m_nBars, 0.0 );
        ::basegfx::B2DPolygon poly( m_unitRect );
        poly.transform( transform );
        res.append( poly );
    }
    return res;
}

}
}