slideshow/source/engine/activities/continuouskeytimeactivitybase.hxx

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  19
  20 #ifndef INCLUDED_SLIDESHOW_SOURCE_ENGINE_ACTIVITIES_CONTINUOUSKEYTIMEACTIVITYBASE_HXX
  21 #define INCLUDED_SLIDESHOW_SOURCE_ENGINE_ACTIVITIES_CONTINUOUSKEYTIMEACTIVITYBASE_HXX
  22
  23 #include "simplecontinuousactivitybase.hxx"
  24
  25 #include <basegfx/utils/keystoplerp.hxx>
  26
  27
  28 namespace slideshow::internal
  29     {
  30         /** Interpolated, key-times animation.
  31
  32             This class implements an interpolated key-times
  33             animation, with continuous time.
  34         */
  35         class ContinuousKeyTimeActivityBase : public SimpleContinuousActivityBase
  36         {
  37         public:
  38             explicit ContinuousKeyTimeActivityBase( const ActivityParameters& rParms );
  39
  40             using SimpleContinuousActivityBase::perform;
  41
  42             /** Hook for derived classes
  43
  44                 This method will be called from perform(), already
  45                 equipped with the modified time (nMinNumberOfFrames, repeat,
  46                 acceleration and deceleration taken into account).
  47
  48                 @param nIndex
  49                 Current index of the key times/key values.
  50
  51                 @param nFractionalIndex
  52                 Fractional value from the [0,1] range, specifying
  53                 the position between nIndex and nIndex+1.
  54
  55                 @param nRepeatCount
  56                 Number of full repeats already performed
  57             */
  58             virtual void perform( sal_uInt32    nIndex,
  59                                   double        nFractionalIndex,
  60                                   sal_uInt32    nRepeatCount ) const = 0;
  61
  62             /// From SimpleContinuousActivityBase class
  63             virtual void simplePerform( double      nSimpleTime,
  64                                         sal_uInt32  nRepeatCount ) const override;
  65
  66         private:
  67             const ::basegfx::utils::KeyStopLerp maLerper;
  68         };
  69
  70 }
  71
  72 #endif // INCLUDED_SLIDESHOW_SOURCE_ENGINE_ACTIVITIES_CONTINUOUSKEYTIMEACTIVITYBASE_HXX
  73
  74 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */