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             : #ifndef INCLUDED_SD_SOURCE_UI_SLIDESORTER_INC_CONTROLLER_SLSANIMATIONFUNCTION_HXX
      21             : #define INCLUDED_SD_SOURCE_UI_SLIDESORTER_INC_CONTROLLER_SLSANIMATIONFUNCTION_HXX
      22             : 
      23             : #include "model/SlsSharedPageDescriptor.hxx"
      24             : #include <basegfx/point/b2dpoint.hxx>
      25             : #include <boost/noncopyable.hpp>
      26             : #include <boost/function.hpp>
      27             : #include <vector>
      28             : 
      29             : namespace sd { namespace slidesorter { namespace view {
      30             : class SlideSorterView;
      31             : } } }
      32             : 
      33             : namespace sd { namespace slidesorter { namespace controller {
      34             : 
      35             : class AnimationBezierFunction
      36             : {
      37             : public:
      38             :     /** Create a cubic bezier curve whose start and end points are given
      39             :         implicitly as P0=(0,0) and P3=(1,1).  The second control point is
      40             :         implicitly given as P2=(1-nY1,1-nX1).
      41             :     */
      42             :     AnimationBezierFunction (
      43             :         const double nX1,
      44             :         const double nY1);
      45             : 
      46             :     ::basegfx::B2DPoint operator() (const double nT);
      47             : 
      48             : private:
      49             :     const double mnX1;
      50             :     const double mnY1;
      51             :     const double mnX2;
      52             :     const double mnY2;
      53             : 
      54             :     static double EvaluateComponent (
      55             :         const double nT,
      56             :         const double nV1,
      57             :         const double nV2);
      58             : };
      59             : 
      60             : /** Turn a parametric function into one whose y-Values depend on its
      61             :     x-Values.  Note a lot of interpolation takes place.  The resulting
      62             :     accuracy should be good enough for the purpose of acceleration
      63             :     function for animations.
      64             : */
      65          13 : class AnimationParametricFunction
      66             : {
      67             : public:
      68             :     typedef ::boost::function<basegfx::B2DPoint(double)> ParametricFunction;
      69             :     AnimationParametricFunction (const ParametricFunction& rFunction);
      70             : 
      71             :     double operator() (const double nX);
      72             : 
      73             : private:
      74             :     /** y-Values of the parametric function given to the constructor
      75             :         evaluated (and interpolated) for evenly spaced x-Values.
      76             :     */
      77             :     ::std::vector<double> maY;
      78             : };
      79             : 
      80             : } } } // end of namespace ::sd::slidesorter::controller
      81             : 
      82             : #endif
      83             : 
      84             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */