Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : 
      21             : #include <canvas/debug.hxx>
      22             : #include <basegfx/matrix/b2dhommatrix.hxx>
      23             : #include <basegfx/matrix/b2dhommatrixtools.hxx>
      24             : #include "iriswipe.hxx"
      25             : 
      26             : 
      27             : namespace slideshow {
      28             : namespace internal {
      29             : 
      30           0 : ::basegfx::B2DPolyPolygon IrisWipe::operator () ( double t )
      31             : {
      32           0 :     const double d = ::basegfx::pruneScaleValue(t);
      33           0 :     basegfx::B2DHomMatrix aTransform(basegfx::tools::createTranslateB2DHomMatrix(-0.5, -0.5));
      34           0 :     aTransform = basegfx::tools::createScaleTranslateB2DHomMatrix(d, d, 0.5, 0.5) * aTransform;
      35             : 
      36           0 :     ::basegfx::B2DPolyPolygon res( m_unitRect );
      37           0 :     res.transform( aTransform );
      38           0 :     return res;
      39             : }
      40             : 
      41             : }
      42             : }
      43             : 
      44             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */