diff options
Diffstat (limited to 'slideshow/source/engine/transitions/iriswipe.cxx')
| -rw-r--r-- | slideshow/source/engine/transitions/iriswipe.cxx | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/slideshow/source/engine/transitions/iriswipe.cxx b/slideshow/source/engine/transitions/iriswipe.cxx new file mode 100644 index 000000000..ebceddb19 --- /dev/null +++ b/slideshow/source/engine/transitions/iriswipe.cxx @@ -0,0 +1,38 @@ +/* -*- 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/matrix/b2dhommatrix.hxx> +#include <basegfx/matrix/b2dhommatrixtools.hxx> +#include "iriswipe.hxx" + +namespace slideshow::internal +{ +::basegfx::B2DPolyPolygon IrisWipe::operator()(double t) +{ + const double d = ::basegfx::pruneScaleValue(t); + basegfx::B2DHomMatrix aTransform(basegfx::utils::createTranslateB2DHomMatrix(-0.5, -0.5)); + aTransform = basegfx::utils::createScaleTranslateB2DHomMatrix(d, d, 0.5, 0.5) * aTransform; + + ::basegfx::B2DPolyPolygon res(m_unitRect); + res.transform(aTransform); + return res; +} +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |