CHintBox: move showTimeOutBar() to protected, add params to enableTimeOutBar()

Explicit call of disableTimeOutBar() after exec() is required to ensure
we have no timebar opened objects. I'm not shure, but otherwise crashs
could be possible.

showTimeOutBar() is required for OnTimer(). It doesn't need any
parameter.

src/gui/widget/hintbox.h

@@ -84,6 +84,7 @@ class CHintBox : public CComponentsWindow
 				const int& indent);
 
 		virtual void ReSize();
+		void showTimeOutBar(){enableTimeOutBar();}
 
 	public:
 		/**CHintBox Constructor
@@ -186,9 +187,17 @@ class CHintBox : public CComponentsWindow
 		virtual void setTimeOut(const int& Timeout){timeout = Timeout;}
 
 		/**
-		* enable visualized timeout as progressbar under titelbar
+		* enable/disable visualized timeout as progressbar under titlebar
+		* @param[in]	enable 
+		* 	@li	optional: exepts type bool, default = true
 		*/
-		void showTimeOutBar();
+		void enableTimeOutBar(bool enable = true);
+
+		/**
+		* disable visualized timeout as progressbar
+		* 	@see enableTimeOutBar
+		*/
+		void disableTimeOutBar(){enableTimeOutBar(false);}
 
 		/**
 		* scroll handler for text objects: NOTE: exec() must be called !