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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                 :            : #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: */