AOO410/main/slideshow/source/engine/activities/continuousactivitybase.hxx

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#ifndef INCLUDED_SLIDESHOW_CONTINUOUSACTIVITYBASE_HXX
#define INCLUDED_SLIDESHOW_CONTINUOUSACTIVITYBASE_HXX

#include "simplecontinuousactivitybase.hxx"

namespace slideshow
{
    namespace internal
    {
        /** Simple, continuous animation.

        	This class implements a simple, continuous
            animation. Only addition to ActivityBase class is an
            explicit animation duration and a minimal number of
            frames to display.
        */
        class ContinuousActivityBase : public SimpleContinuousActivityBase
        {
        public:
            ContinuousActivityBase( const ActivityParameters& rParms );

            using SimpleContinuousActivityBase::perform;

            /** Hook for derived classes

	            This method will be called from perform(), already
                equipped with the modified time (nMinNumberOfFrames, repeat,
                acceleration and deceleration taken into account).
                
                @param nModifiedTime
                Already accelerated/decelerated and repeated time, always
                in the [0,1] range.
                
                @param nRepeatCount
                Number of full repeats already performed
            */
            virtual void perform( double nModifiedTime, sal_uInt32 nRepeatCount ) const = 0;

            /// From SimpleContinuousActivityBase class
            virtual void simplePerform( double 		nSimpleTime, 
                                        sal_uInt32	nRepeatCount ) const;
        };
    }
}

#endif /* INCLUDED_SLIDESHOW_CONTINUOUSACTIVITYBASE_HXX */