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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                 :            : 
      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 "clockwipe.hxx"
      27                 :            : 
      28                 :            : 
      29                 :            : namespace slideshow {
      30                 :            : namespace internal {
      31                 :            : 
      32                 :          0 : ::basegfx::B2DPolygon ClockWipe::calcCenteredClock( double t, double e )
      33                 :            : {
      34                 :          0 :     ::basegfx::B2DPolygon poly;
      35                 :          0 :     ::basegfx::B2DHomMatrix aTransform;
      36                 :          0 :     aTransform.rotate( t * 2.0 * M_PI );
      37                 :          0 :     const double MAX_EDGE = 2.0;
      38                 :          0 :     ::basegfx::B2DPoint p( 0.0, -MAX_EDGE );
      39                 :          0 :     p *= aTransform;
      40                 :          0 :     poly.append( p );
      41                 :          0 :     if (t >= 0.875)
      42                 :          0 :         poly.append( ::basegfx::B2DPoint( -e, -e ) );
      43                 :          0 :     if (t >= 0.625)
      44                 :          0 :         poly.append( ::basegfx::B2DPoint( -e, e ) );
      45                 :          0 :     if (t >= 0.375)
      46                 :          0 :         poly.append( ::basegfx::B2DPoint( e, e ) );
      47                 :          0 :     if (t >= 0.125)
      48                 :          0 :         poly.append( ::basegfx::B2DPoint( e, -e ) );
      49                 :          0 :     poly.append( ::basegfx::B2DPoint( 0.0, -e ) );
      50                 :          0 :     poly.append( ::basegfx::B2DPoint( 0.0, 0.0 ) );
      51                 :          0 :     poly.setClosed(true);
      52                 :          0 :     return poly;
      53                 :            : }
      54                 :            : 
      55                 :          0 : ::basegfx::B2DPolyPolygon ClockWipe::operator () ( double t )
      56                 :            : {
      57                 :          0 :     const basegfx::B2DHomMatrix aTransform(basegfx::tools::createScaleTranslateB2DHomMatrix(0.5, 0.5, 0.5, 0.5));
      58                 :          0 :     ::basegfx::B2DPolygon poly( calcCenteredClock(t) );
      59                 :          0 :     poly.transform( aTransform );
      60                 :          0 :     return ::basegfx::B2DPolyPolygon(poly);
      61                 :            : }
      62                 :            : 
      63                 :            : }
      64                 :            : }
      65                 :            : 
      66                 :            : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */