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       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                 :            : #ifndef INCLUDED_SLIDESHOW_SNAKEWIPE_HXX
      21                 :            : #define INCLUDED_SLIDESHOW_SNAKEWIPE_HXX
      22                 :            : 
      23                 :            : #include "parametricpolypolygon.hxx"
      24                 :            : 
      25                 :            : #include <basegfx/numeric/ftools.hxx>
      26                 :            : #include <basegfx/point/b2dpoint.hxx>
      27                 :            : 
      28                 :            : 
      29                 :            : namespace slideshow {
      30                 :            : namespace internal {
      31                 :            : 
      32                 :            : /// Generates a snake wipe:
      33                 :          0 : class SnakeWipe : public ParametricPolyPolygon
      34                 :            : {
      35                 :            : public:
      36                 :            :     SnakeWipe( sal_Int32 nElements, bool diagonal, bool flipOnYAxis );
      37                 :            :     virtual ::basegfx::B2DPolyPolygon operator () ( double t );
      38                 :            : 
      39                 :            : protected:
      40                 :            :     // topLeftHorizontal:
      41                 :            :     ::basegfx::B2DPolyPolygon calcSnake( double t ) const;
      42                 :            :     // topLeftDiagonal:
      43                 :            :     ::basegfx::B2DPolyPolygon calcHalfDiagonalSnake( double t, bool in ) const;
      44                 :            : 
      45                 :            :     const sal_Int32 m_sqrtElements;
      46                 :            :     const double m_elementEdge;
      47                 :            :     const bool m_diagonal;
      48                 :            :     const bool m_flipOnYAxis;
      49                 :            : };
      50                 :            : 
      51                 :            : /// Generates a parallel snakes wipe:
      52                 :          0 : class ParallelSnakesWipe : public SnakeWipe
      53                 :            : {
      54                 :            : public:
      55                 :          0 :     ParallelSnakesWipe( sal_Int32 nElements,
      56                 :            :                         bool diagonal, bool flipOnYAxis, bool opposite )
      57                 :            :         : SnakeWipe( nElements, diagonal, flipOnYAxis ),
      58                 :          0 :           m_opposite( opposite )
      59                 :          0 :         {}
      60                 :            :     virtual ::basegfx::B2DPolyPolygon operator () ( double t );
      61                 :            : private:
      62                 :            :     const bool m_opposite;
      63                 :            : };
      64                 :            : 
      65                 :            : }
      66                 :            : }
      67                 :            : 
      68                 :            : #endif /* INCLUDED_SLIDESHOW_SNAKEWIPE_HXX */
      69                 :            : 
      70                 :            : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */