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

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#ifndef INCLUDED_SLIDESHOW_PAUSEEVENTHANDLER_HXX
#define INCLUDED_SLIDESHOW_PAUSEEVENTHANDLER_HXX

#include <boost/shared_ptr.hpp>


/* Definition of PauseHandler interface */

namespace slideshow
{
    namespace internal
    {

        /** Interface for handling pause events.

        	Classes implementing this interface can be added to an
        	EventMultiplexer object, and are called from there to
        	handle pause events.
         */
        class PauseEventHandler
        {
        public:
            /** Handle the event.

            	@param bPauseShow
                When true, the show is paused. When false, the show is
                started again

            	@return true, if this handler has successfully
            	processed the pause event. When this method returns
            	false, possibly other, less prioritized handlers are
            	called, too.
             */
            virtual bool handlePause( bool bPauseShow ) = 0;
        };

        typedef ::boost::shared_ptr< PauseEventHandler > PauseEventHandlerSharedPtr;
    }
}

#endif /* INCLUDED_SLIDESHOW_PAUSEEVENTHANDLER_HXX */