Branch data     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/point/b2dpoint.hxx>
      24                 :            : #include <basegfx/numeric/ftools.hxx>
      25                 :            : #include <basegfx/matrix/b2dhommatrixtools.hxx>
      26                 :            : #include "transitiontools.hxx"
      27                 :            : #include "zigzagwipe.hxx"
      28                 :            : 
      29                 :            : 
      30                 :            : namespace slideshow {
      31                 :            : namespace internal {
      32                 :            : 
      33                 :          0 : ZigZagWipe::ZigZagWipe( sal_Int32 nZigs ) : m_zigEdge( 1.0 / nZigs )
      34                 :            : {
      35                 :          0 :     const double d = m_zigEdge;
      36                 :          0 :     const double d2 = (d / 2.0);
      37                 :          0 :     m_stdZigZag.append( ::basegfx::B2DPoint( -1.0 - d, -d ) );
      38                 :          0 :     m_stdZigZag.append( ::basegfx::B2DPoint( -1.0 - d, 1.0 + d ) );
      39                 :          0 :     m_stdZigZag.append( ::basegfx::B2DPoint( -d, 1.0 + d ) );
      40                 :          0 :     for ( sal_Int32 pos = (nZigs + 2); pos--; ) {
      41                 :          0 :         m_stdZigZag.append( ::basegfx::B2DPoint( 0.0, ((pos - 1) * d) + d2 ) );
      42                 :          0 :         m_stdZigZag.append( ::basegfx::B2DPoint( -d, (pos - 1) * d ) );
      43                 :            :     }
      44                 :          0 :     m_stdZigZag.setClosed(true);
      45                 :          0 : }
      46                 :            : 
      47                 :          0 : ::basegfx::B2DPolyPolygon ZigZagWipe::operator () ( double t )
      48                 :            : {
      49                 :          0 :     ::basegfx::B2DPolyPolygon res(m_stdZigZag);
      50                 :          0 :     res.transform(basegfx::tools::createTranslateB2DHomMatrix((1.0 + m_zigEdge) * t, 0.0));
      51                 :          0 :     return res;
      52                 :            : }
      53                 :            : 
      54                 :          0 : ::basegfx::B2DPolyPolygon BarnZigZagWipe::operator () ( double t )
      55                 :            : {
      56                 :          0 :     ::basegfx::B2DPolyPolygon res( createUnitRect() );
      57                 :          0 :     ::basegfx::B2DPolygon poly( m_stdZigZag );
      58                 :          0 :     poly.flip();
      59                 :            :     basegfx::B2DHomMatrix aTransform(basegfx::tools::createTranslateB2DHomMatrix(
      60                 :          0 :         (1.0 + m_zigEdge) * (1.0 - t) / 2.0, 0.0));
      61                 :          0 :     poly.transform( aTransform );
      62                 :          0 :     res.append( poly );
      63                 :          0 :     aTransform.scale( -1.0, 1.0 );
      64                 :          0 :     aTransform.translate( 1.0, m_zigEdge / 2.0 );
      65                 :          0 :     poly = m_stdZigZag;
      66                 :          0 :     poly.transform( aTransform );
      67                 :          0 :     res.append( poly );
      68                 :          0 :     return res;
      69                 :            : }
      70                 :            : 
      71                 :            : }
      72                 :            : }
      73                 :            : 
      74                 :            : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */