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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* 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
* with this work for additional information regarding copyright
* 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/numeric/ftools.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/point/b2dpoint.hxx>
#include <basegfx/matrix/b2dhommatrixtools.hxx>
#include "figurewipe.hxx"
namespace slideshow::internal {
::basegfx::B2DPolyPolygon FigureWipe::operator () ( double t )
{
::basegfx::B2DPolyPolygon res(m_figure);
res.transform(basegfx::utils::createScaleTranslateB2DHomMatrix(t, t, 0.5, 0.5));
return res;
}
std::shared_ptr<FigureWipe> FigureWipe::createTriangleWipe()
{
const double s60 = sin( basegfx::deg2rad(60.0) );
const double s30 = sin( basegfx::deg2rad(30.0) );
::basegfx::B2DPolygon figure;
figure.append( ::basegfx::B2DPoint( 0.5 + s30, 0.5 ) );
figure.append( ::basegfx::B2DPoint( 0.0, -0.5 - s60 ) );
figure.append( ::basegfx::B2DPoint( -0.5 - s30, 0.5 ) );
figure.setClosed(true);
return std::make_shared<FigureWipe>(figure);
}
std::shared_ptr<FigureWipe> FigureWipe::createArrowHeadWipe()
{
const double s60 = sin( basegfx::deg2rad(60.0) );
const double s30 = sin( basegfx::deg2rad(30.0) );
const double off = s30;
::basegfx::B2DPolygon figure;
figure.append( ::basegfx::B2DPoint( 0.5 + s30 + off, 0.5 + off ) );
figure.append( ::basegfx::B2DPoint( 0.0, -0.5 - s60 ) );
figure.append( ::basegfx::B2DPoint( -0.5 - s30 - off, 0.5 + off ) );
figure.append( ::basegfx::B2DPoint( 0.0, 0.5 ) );
figure.setClosed(true);
return std::make_shared<FigureWipe>(figure);
}
std::shared_ptr<FigureWipe> FigureWipe::createPentagonWipe()
{
const double s = sin( basegfx::deg2rad(18.0) );
const double c = cos( basegfx::deg2rad(18.0) );
::basegfx::B2DPolygon figure;
figure.append( ::basegfx::B2DPoint( 0.5, 0.5 ) );
figure.append( ::basegfx::B2DPoint( 0.5 + s, 0.5 - c ) );
figure.append( ::basegfx::B2DPoint( 0.0, 0.5 - c - sin(basegfx::deg2rad(36.0)) ) );
figure.append( ::basegfx::B2DPoint( -0.5 - s, 0.5 - c ) );
figure.append( ::basegfx::B2DPoint( -0.5, 0.5 ) );
figure.setClosed(true);
return std::make_shared<FigureWipe>(figure);
}
std::shared_ptr<FigureWipe> FigureWipe::createHexagonWipe()
{
const double s = sin( basegfx::deg2rad(30.0) );
const double c = cos( basegfx::deg2rad(30.0) );
::basegfx::B2DPolygon figure;
figure.append( ::basegfx::B2DPoint( 0.5, c ) );
figure.append( ::basegfx::B2DPoint( 0.5 + s, 0.0 ) );
figure.append( ::basegfx::B2DPoint( 0.5, -c ) );
figure.append( ::basegfx::B2DPoint( -0.5, -c ) );
figure.append( ::basegfx::B2DPoint( -0.5 - s, 0.0 ) );
figure.append( ::basegfx::B2DPoint( -0.5, c ) );
figure.setClosed(true);
return std::make_shared<FigureWipe>(figure);
}
std::shared_ptr<FigureWipe> FigureWipe::createStarWipe( sal_Int32 nPoints )
{
const double v = M_PI / nPoints;
const ::basegfx::B2DPoint p_( 0.0, -M_SQRT2 );
::basegfx::B2DPolygon figure;
for ( sal_Int32 pos = 0; pos < nPoints; ++pos ) {
const double w = pos * 2.0 * M_PI / nPoints;
::basegfx::B2DHomMatrix aTransform;
::basegfx::B2DPoint p(p_);
aTransform.rotate( -w );
p *= aTransform;
figure.append(p);
p = p_;
aTransform.identity();
aTransform.scale( 0.5, 0.5 );
aTransform.rotate( -w - v );
p *= aTransform;
figure.append(p);
}
figure.setClosed(true);
return std::make_shared<FigureWipe>(figure);
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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