117 lines
4.3 KiB
C++
117 lines
4.3 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <basegfx/numeric/ftools.hxx>
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#include <basegfx/matrix/b2dhommatrix.hxx>
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#include <basegfx/point/b2dpoint.hxx>
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#include <basegfx/matrix/b2dhommatrixtools.hxx>
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#include "figurewipe.hxx"
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namespace slideshow::internal {
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::basegfx::B2DPolyPolygon FigureWipe::operator () ( double t )
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{
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::basegfx::B2DPolyPolygon res(m_figure);
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res.transform(basegfx::utils::createScaleTranslateB2DHomMatrix(t, t, 0.5, 0.5));
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return res;
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}
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std::shared_ptr<FigureWipe> FigureWipe::createTriangleWipe()
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{
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const double s60 = sin( basegfx::deg2rad(60.0) );
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const double s30 = sin( basegfx::deg2rad(30.0) );
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::basegfx::B2DPolygon figure;
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figure.append( ::basegfx::B2DPoint( 0.5 + s30, 0.5 ) );
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figure.append( ::basegfx::B2DPoint( 0.0, -0.5 - s60 ) );
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figure.append( ::basegfx::B2DPoint( -0.5 - s30, 0.5 ) );
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figure.setClosed(true);
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return std::make_shared<FigureWipe>(figure);
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}
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std::shared_ptr<FigureWipe> FigureWipe::createArrowHeadWipe()
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{
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const double s60 = sin( basegfx::deg2rad(60.0) );
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const double s30 = sin( basegfx::deg2rad(30.0) );
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const double off = s30;
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::basegfx::B2DPolygon figure;
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figure.append( ::basegfx::B2DPoint( 0.5 + s30 + off, 0.5 + off ) );
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figure.append( ::basegfx::B2DPoint( 0.0, -0.5 - s60 ) );
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figure.append( ::basegfx::B2DPoint( -0.5 - s30 - off, 0.5 + off ) );
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figure.append( ::basegfx::B2DPoint( 0.0, 0.5 ) );
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figure.setClosed(true);
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return std::make_shared<FigureWipe>(figure);
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}
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std::shared_ptr<FigureWipe> FigureWipe::createPentagonWipe()
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{
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const double s = sin( basegfx::deg2rad(18.0) );
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const double c = cos( basegfx::deg2rad(18.0) );
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::basegfx::B2DPolygon figure;
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figure.append( ::basegfx::B2DPoint( 0.5, 0.5 ) );
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figure.append( ::basegfx::B2DPoint( 0.5 + s, 0.5 - c ) );
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figure.append( ::basegfx::B2DPoint( 0.0, 0.5 - c - sin(basegfx::deg2rad(36.0)) ) );
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figure.append( ::basegfx::B2DPoint( -0.5 - s, 0.5 - c ) );
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figure.append( ::basegfx::B2DPoint( -0.5, 0.5 ) );
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figure.setClosed(true);
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return std::make_shared<FigureWipe>(figure);
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}
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std::shared_ptr<FigureWipe> FigureWipe::createHexagonWipe()
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{
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const double s = sin( basegfx::deg2rad(30.0) );
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const double c = cos( basegfx::deg2rad(30.0) );
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::basegfx::B2DPolygon figure;
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figure.append( ::basegfx::B2DPoint( 0.5, c ) );
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figure.append( ::basegfx::B2DPoint( 0.5 + s, 0.0 ) );
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figure.append( ::basegfx::B2DPoint( 0.5, -c ) );
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figure.append( ::basegfx::B2DPoint( -0.5, -c ) );
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figure.append( ::basegfx::B2DPoint( -0.5 - s, 0.0 ) );
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figure.append( ::basegfx::B2DPoint( -0.5, c ) );
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figure.setClosed(true);
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return std::make_shared<FigureWipe>(figure);
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}
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std::shared_ptr<FigureWipe> FigureWipe::createStarWipe( sal_Int32 nPoints )
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{
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const double v = M_PI / nPoints;
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const ::basegfx::B2DPoint p_( 0.0, -M_SQRT2 );
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::basegfx::B2DPolygon figure;
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for ( sal_Int32 pos = 0; pos < nPoints; ++pos ) {
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const double w = pos * 2.0 * M_PI / nPoints;
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::basegfx::B2DHomMatrix aTransform;
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::basegfx::B2DPoint p(p_);
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aTransform.rotate( -w );
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p *= aTransform;
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figure.append(p);
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p = p_;
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aTransform.identity();
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aTransform.scale( 0.5, 0.5 );
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aTransform.rotate( -w - v );
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p *= aTransform;
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figure.append(p);
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}
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figure.setClosed(true);
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return std::make_shared<FigureWipe>(figure);
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}
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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