slideshow/source/engine/activities/continuouskeytimeactivitybase.hxx

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  30
  31 #ifndef INCLUDED_SLIDESHOW_CONTINUOUSKEYTIMEACTIVITYBASE_HXX
  32 #define INCLUDED_SLIDESHOW_CONTINUOUSKEYTIMEACTIVITYBASE_HXX
  33
  34 #include "simplecontinuousactivitybase.hxx"
  35 #include <vector>
  36
  37
  38 namespace slideshow
  39 {
  40     namespace internal
  41     {
  42         /** Interpolated, key-times animation.
  43
  44             This class implements an interpolated key-times
  45             animation, with continuous time.
  46         */
  47         class ContinuousKeyTimeActivityBase : public SimpleContinuousActivityBase
  48         {
  49         public:
  50             ContinuousKeyTimeActivityBase( const ActivityParameters& rParms );
  51
  52             using SimpleContinuousActivityBase::perform;
  53
  54             /** Hook for derived classes
  55
  56                 This method will be called from perform(), already
  57                 equipped with the modified time (nMinNumberOfFrames, repeat,
  58                 acceleration and deceleration taken into account).
  59
  60                 @param nIndex
  61                 Current index of the key times/key values.
  62
  63                 @param nFractionalIndex
  64                 Fractional value from the [0,1] range, specifying
  65                 the position between nIndex and nIndex+1.
  66
  67                 @param nRepeatCount
  68                 Number of full repeats already performed
  69             */
  70             virtual void perform( sal_uInt32    nIndex,
  71                                   double                nFractionalIndex,
  72                                   sal_uInt32    nRepeatCount ) const = 0;
  73
  74             /// From SimpleContinuousActivityBase class
  75             virtual void simplePerform( double          nSimpleTime,
  76                                         sal_uInt32      nRepeatCount ) const;
  77
  78         private:
  79             const ::std::vector< double >       maKeyTimes;
  80
  81             /// last active index in maKeyTimes (to avoid frequent searching)
  82             mutable ::std::size_t                       mnLastIndex;
  83         };
  84     }
  85 }
  86
  87 #endif /* INCLUDED_SLIDESHOW_CONTINUOUSKEYTIMEACTIVITYBASE_HXX */