boxwipe.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
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 *   ownership. The ASF licenses this file to you under the Apache
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#include <basegfx/matrix/b2dhommatrix.hxx>
#include "boxwipe.hxx"
 
 
namespace slideshow::internal {
 
::basegfx::B2DPolyPolygon BoxWipe::operator () ( double t )
{
    ::basegfx::B2DHomMatrix aTransform;
    double d = ::basegfx::pruneScaleValue(t);
    if (m_topCentered) {
        aTransform.translate( -0.5, 0.0 );
        aTransform.scale( d, d );
        aTransform.translate( 0.5, 0.0 );
    } else {
        aTransform.scale( d, d );
    }
 
    ::basegfx::B2DPolyPolygon res( m_unitRect );
    res.transform( aTransform );
    return res;
}
 
}
 
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