CCDraw: add overloaded version of paint Blink()

It's useful to have synchronized timer for more than one item.


Origin commit data
------------------
Commit: f7ad79c371
Author: Thilo Graf <dbt@novatux.de>
Date: 2016-12-17 (Sat, 17 Dec 2016)

src/gui/components/cc_draw.cpp

@@ -738,18 +738,21 @@ void CCDraw::paintTrigger()
 		hide();
 }
 
+bool CCDraw::paintBlink(CComponentsTimer* Timer)
+{
+	if (Timer){
+		Timer->OnTimer.connect(cc_draw_trigger_slot);
+		return Timer->isRun();
+	}
+	return false;
+}
+
 bool CCDraw::paintBlink(const int& interval, bool is_nano)
 {
-	if (cc_draw_timer == NULL){
+	if (cc_draw_timer == NULL)
 		cc_draw_timer = new CComponentsTimer(interval, is_nano);
-		if (cc_draw_timer->OnTimer.empty()){
-			cc_draw_timer->OnTimer.connect(cc_draw_trigger_slot);
-		}
-	}
-	if (cc_draw_timer)
-		return cc_draw_timer->isRun();
 
-	return false;
+	return paintBlink(cc_draw_timer);
 }
 
 bool CCDraw::cancelBlink(bool keep_on_screen)

src/gui/components/cc_draw.h

@@ -312,6 +312,17 @@ class CCDraw : public COSDFader, public CComponentsSignals
 		///paint item, same like paint(CC_SAVE_SCREEN_YES) but without any argument
 		virtual void paint1(){paint(CC_SAVE_SCREEN_YES);}
 
+		/**paint item with blink effect
+		 * This should work with all cc item types.
+		 *
+		 * @return bool			returns true if effect is successful started
+		 *
+		 * @param[in] CComponentsTimer*	pointer to timer object, Note: This object must be created and distroy outside
+		 * 				of this methode.
+		 * @see				overloaded version of paintBlink()
+		*/
+		virtual bool paintBlink(CComponentsTimer* Timer);
+
 		/**paint item with blink effect
 		 * This should work with all cc item types.
 		 *