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include/engine/ui/ui_event_handler.h

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+/* -----------------------------------------------------------------------------
+	GSFramework
+	Copyright 2001-2013 Emmanuel Julien. All Rights Reserved.
+----------------------------------------------------------------------------- */
+
+
+#ifndef	__NUIEVENTHANDLER__
+#define	__NUIEVENTHANDLER__
+
+
+		#include "script/script_vm.h"
+		#include "script/script_object.h"
+		#include "memory/nauto_ptr.h"
+
+
+namespace GS {
+	namespace S2D {
+
+enum EventCode
+{
+	Event_None		=	0,
+
+	Event_CursorDown,
+	Event_CursorHit,
+	Event_CursorUp,
+
+	Event_CursorEnter,
+	Event_CursorLeave,
+	Event_CursorMove,
+};
+
+/// 2D event handler.
+class	EventHandler
+{
+		friend class EventTable;
+
+protected:
+
+		EventCode		code;			
+		AutoPtr <Script::Object> handler, context;
+
+public:
+
+		EventCode		GetCode() const { return code; }
+		Script::Object *GetHandler() { return handler; }
+		Script::Object *GetContext() { return context; }
+
+		EventHandler(EventCode c = Event_None) : code(c) {}
+};
+
+/*!
+	@short	UI event table.
+	@author	Emmanuel Julien (ejulien@nworks.fr)
+*/
+class	EventTable
+{
+		bool			enabled;
+		AutoList <EventHandler *> handler_list;
+
+public:
+
+		void			Reset() { handler_list.Clear(); }
+
+		/// Returns true if the table has any handler set.
+		bool			HasHandler() const { return handler_list.GetCount() > 0; }
+
+		EventHandler	*GetHandler(EventCode) const;
+		EventHandler	*SetHandler(EventCode, Script::Object *handler, Script::Object *context = 0);
+		void			DeleteHandler(EventCode);
+
+		bool			HasHandler(EventCode code) const { return asbool(GetHandler(code)); }
+		bool			HasHandlerContext(EventCode) const;
+
+		void			Enable(bool v) { enabled = v; }
+		bool			IsEnabled() const { return enabled; }
+
+		EventTable() : enabled(true) {}
+};
+
+	} // S2D
+} // GS
+
+
+#endif	// __NUIEVENTHANDLER__