office-gobmx/slideshow/source/inc/eventhandler.hxx
2010-10-28 15:50:10 +01:00

70 lines
2.2 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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#ifndef INCLUDED_SLIDESHOW_EVENTHANDLER_HXX
#define INCLUDED_SLIDESHOW_EVENTHANDLER_HXX
#include <boost/shared_ptr.hpp>
/* Definition of EventHandler interface */
namespace slideshow
{
namespace internal
{
/** Interface for event handling objects.
Classes implementing this interface can be added to an
EventMultiplexer object, and are called from there to
handle events.
*/
class EventHandler
{
public:
virtual ~EventHandler() {}
/** Handle the event.
@return true, if this handler has successfully
processed the event. When this method returns false,
possibly other, less prioritized handlers are called,
too.
*/
virtual bool handleEvent() = 0;
};
typedef ::boost::shared_ptr< EventHandler > EventHandlerSharedPtr;
}
}
#endif /* INCLUDED_SLIDESHOW_EVENTHANDLER_HXX */
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