slideshow/source/engine/transitions/spiralwipe.hxx

   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_SOURCE_ENGINE_TRANSITIONS_SPIRALWIPE_HXX
  21 #define INCLUDED_SLIDESHOW_SOURCE_ENGINE_TRANSITIONS_SPIRALWIPE_HXX
  22
  23 #include "parametricpolypolygon.hxx"
  24 #include <basegfx/numeric/ftools.hxx>
  25 #include <basegfx/point/b2dpoint.hxx>
  26
  27
  28 namespace slideshow {
  29 namespace internal {
  30
  31 /// Generates a topLeftClockWise or
  32 /// bottomLeftCounterClockWise (flipOnYAxis=true) spiral wipe:
  33 class SpiralWipe : public ParametricPolyPolygon
  34 {
  35 public:
  36     SpiralWipe( sal_Int32 nElements, bool flipOnYAxis = false );
  37     virtual ::basegfx::B2DPolyPolygon operator () ( double t ) override;
  38 protected:
  39     ::basegfx::B2DPolyPolygon calcNegSpiral( double t ) const;
  40
  41     const sal_Int32 m_elements;
  42     const sal_Int32 m_sqrtElements;
  43     const bool m_flipOnYAxis;
  44 };
  45
  46 /// Generates a twoBoxLeft or fourBoxHorizontal wipe:
  47 class BoxSnakesWipe : public SpiralWipe
  48 {
  49 public:
  50     BoxSnakesWipe( sal_Int32 nElements, bool fourBox )
  51         : SpiralWipe(nElements), m_fourBox(fourBox) {}
  52     virtual ::basegfx::B2DPolyPolygon operator () ( double t ) override;
  53 private:
  54     const bool m_fourBox;
  55 };
  56
  57 }
  58 }
  59
  60 #endif // INCLUDED_SLIDESHOW_SOURCE_ENGINE_TRANSITIONS_SPIRALWIPE_HXX
  61
  62 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */