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/polygon/b2dpolypolygon.hxx>
      24             : #include <basegfx/numeric/ftools.hxx>
      25             : #include <basegfx/matrix/b2dhommatrixtools.hxx>
      26             : #include "fourboxwipe.hxx"
      27             : 
      28             : 
      29             : namespace slideshow {
      30             : namespace internal {
      31             : 
      32           0 : ::basegfx::B2DPolyPolygon FourBoxWipe::operator () ( double t )
      33             : {
      34           0 :     ::basegfx::B2DHomMatrix aTransform;
      35           0 :     const double d = ::basegfx::pruneScaleValue( t / 2.0 );
      36           0 :     if (m_cornersOut)
      37             :     {
      38           0 :         aTransform = basegfx::tools::createTranslateB2DHomMatrix(-0.5, -0.5);
      39             :         aTransform = basegfx::tools::createScaleTranslateB2DHomMatrix(d, d, -0.25, -0.25)
      40           0 :             * aTransform;
      41             :     }
      42             :     else
      43             :     {
      44           0 :         aTransform = basegfx::tools::createScaleTranslateB2DHomMatrix(d, d, -0.5, -0.5);
      45             :     }
      46             : 
      47             :     // top left:
      48           0 :     ::basegfx::B2DPolygon square( m_unitRect );
      49           0 :     square.transform( aTransform );
      50           0 :     ::basegfx::B2DPolyPolygon res( square );
      51             :     // bottom left, flip on x-axis:
      52           0 :     aTransform.scale( -1.0, 1.0 );
      53           0 :     ::basegfx::B2DPolygon square2( m_unitRect );
      54           0 :     square2.transform( aTransform );
      55           0 :     square2.flip(); // flip direction
      56           0 :     res.append( square2 );
      57             :     // bottom right, flip on y-axis:
      58           0 :     aTransform.scale( 1.0, -1.0 );
      59           0 :     ::basegfx::B2DPolygon square3( m_unitRect );
      60           0 :     square3.transform( aTransform );
      61           0 :     res.append( square3 );
      62             :     // top right, flip on x-axis:
      63           0 :     aTransform.scale( -1.0, 1.0 );
      64           0 :     ::basegfx::B2DPolygon square4( m_unitRect );
      65           0 :     square4.transform( aTransform );
      66           0 :     square4.flip(); // flip direction
      67           0 :     res.append( square4 );
      68             : 
      69           0 :     aTransform = basegfx::tools::createTranslateB2DHomMatrix(0.5, 0.5);
      70           0 :     res.transform( aTransform );
      71           0 :     return res;
      72             : }
      73             : 
      74             : }
      75             : }
      76             : 
      77             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */