gui manager hacks

include/GUIManager/GUIManager.h

@@ -158,6 +158,8 @@ public:
 
 	void DeleteWidgetOnUpdate(const std::string& name);
 	void DeleteWidgetGroupOnUpdate(const std::string& groupName);
+	void DeleteWidgetLaterOnUpdate(const std::string& name);
+	void DeleteWidgetGroupLaterOnUpdate(const std::string& groupName);
 
 	void Update(cardinal dt);
 	void Draw();

include/Utils/ThreadUtils.h

@@ -37,6 +37,7 @@ namespace SE
 	void TryUpdateMainThreadId();
 
 	void PerformInMainThreadAsync(boost::function<void()> f);
+	void PerformInMainThreadAsyncLater(boost::function<void()> f);
 
 	template<typename RETURNTYPE>
 	RETURNTYPE PerformInMainThread(boost::function<RETURNTYPE()> f);