AOO410/main/slideshow/source/inc/animationeventhandler.hxx

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#ifndef INCLUDED_SLIDESHOW_ANIMATIONEVENTHANDLER_HXX
#define INCLUDED_SLIDESHOW_ANIMATIONEVENTHANDLER_HXX

#include <boost/shared_ptr.hpp>
#include "animationnode.hxx"


/* Definition of AnimationEventHandler interface */

namespace slideshow
{
    namespace internal
    {

        /** Interface for handling animation events.

        	Classes implementing this interface can be added to an
        	EventMultiplexer object, and are called from there to
        	handle animation state change events.
         */
        class AnimationEventHandler
        {
        public:
            virtual ~AnimationEventHandler() {}

            /** Handle the event.

            	@param rNode
                Animation node which caused this event to fire

            	@return true, if this handler has successfully
            	processed the animation event. When this method
            	returns false, possibly other, less prioritized
            	handlers are called, too.
             */
            virtual bool handleAnimationEvent( const AnimationNodeSharedPtr& rNode ) = 0;
        };

        typedef ::boost::shared_ptr< AnimationEventHandler > AnimationEventHandlerSharedPtr;

    }
}

#endif /* INCLUDED_SLIDESHOW_ANIMATIONEVENTHANDLER_HXX */