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_SLIDESHOW_DISCRETEACTIVITYBASE_HXX
      21             : #define INCLUDED_SLIDESHOW_DISCRETEACTIVITYBASE_HXX
      22             : 
      23             : #include "activitybase.hxx"
      24             : #include "wakeupevent.hxx"
      25             : 
      26             : #include <vector>
      27             : 
      28             : 
      29             : namespace slideshow
      30             : {
      31             :     namespace internal
      32             :     {
      33             :         /** Specialization of ActivityBase for discrete time activities.
      34             : 
      35             :             A discrete time activity is one where time proceeds in
      36             :             discrete steps, i.e. at given time instants.
      37             :         */
      38           0 :         class DiscreteActivityBase : public ActivityBase
      39             :         {
      40             :         public:
      41             :             DiscreteActivityBase( const ActivityParameters& rParms );
      42             : 
      43             :             /** Hook for derived classes.
      44             : 
      45             :                 This method is called for each discrete time
      46             :                 instant, with nFrame denoting the frame number
      47             :                 (starting with 0)
      48             : 
      49             :                 @param nFrame
      50             :                 Current frame number.
      51             : 
      52             :                 @param nRepeatCount
      53             :                 Number of full repeats already performed
      54             :             */
      55             :             virtual void perform( sal_uInt32 nFrame, sal_uInt32 nRepeatCount ) const = 0;
      56             :             virtual void dispose();
      57             :             virtual bool perform();
      58             : 
      59             :         protected:
      60             :             virtual void startAnimation();
      61             : 
      62             :             sal_uInt32 calcFrameIndex( sal_uInt32       nCurrCalls,
      63             :                                        ::std::size_t    nVectorSize ) const;
      64             : 
      65             :             sal_uInt32 calcRepeatCount( sal_uInt32      nCurrCalls,
      66             :                                         ::std::size_t   nVectorSize ) const;
      67             : 
      68           0 :             ::std::size_t getNumberOfKeyTimes() const { return maDiscreteTimes.size(); }
      69             : 
      70             :         private:
      71             :             WakeupEventSharedPtr            mpWakeupEvent;
      72             :             const ::std::vector< double >   maDiscreteTimes;
      73             :             const double                    mnSimpleDuration;
      74             :             sal_uInt32                      mnCurrPerformCalls;
      75             :         };
      76             :     }
      77             : }
      78             : 
      79             : #endif /* INCLUDED_SLIDESHOW_DISCRETEACTIVITYBASE_HXX */
      80             : 
      81             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */