veewipe.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
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 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * 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
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */
 
 
#include <basegfx/point/b2dpoint.hxx>
#include "veewipe.hxx"
 
 
namespace slideshow::internal {
 
::basegfx::B2DPolyPolygon VeeWipe::operator () ( double t )
{
    ::basegfx::B2DPolygon poly;
    poly.append( ::basegfx::B2DPoint( 0.0, -1.0 ) );
    const double d = ::basegfx::pruneScaleValue( 2.0 * t );
    poly.append( ::basegfx::B2DPoint( 0.0, d - 1.0 ) );
    poly.append( ::basegfx::B2DPoint( 0.5, d ) );
    poly.append( ::basegfx::B2DPoint( 1.0, d - 1.0 ) );
    poly.append( ::basegfx::B2DPoint( 1.0, -1.0 ) );
    poly.setClosed(true);
    return ::basegfx::B2DPolyPolygon( poly );
}
 
}
 
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