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/numeric/ftools.hxx>
      24             : #include <basegfx/matrix/b2dhommatrixtools.hxx>
      25             : #include "clockwipe.hxx"
      26             : #include "pinwheelwipe.hxx"
      27             : 
      28             : 
      29             : namespace slideshow {
      30             : namespace internal {
      31             : 
      32           0 : ::basegfx::B2DPolyPolygon PinWheelWipe::operator () ( double t )
      33             : {
      34             :     ::basegfx::B2DPolygon poly( ClockWipe::calcCenteredClock(
      35             :                                     t / m_blades,
      36           0 :                                     2.0 /* max edge when rotating */ ) );
      37           0 :     ::basegfx::B2DPolyPolygon res;
      38           0 :     for ( sal_Int32 i = m_blades; i--; )
      39             :     {
      40           0 :         ::basegfx::B2DPolygon p(poly);
      41           0 :         p.transform(basegfx::tools::createRotateB2DHomMatrix((i * 2.0 * M_PI) / m_blades));
      42           0 :         res.append( p );
      43           0 :     }
      44           0 :     res.transform(basegfx::tools::createScaleTranslateB2DHomMatrix(0.5, 0.5, 0.5, 0.5));
      45           0 :     return res;
      46             : }
      47             : 
      48             : }
      49             : }
      50             : 
      51             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */