make click sound handling DRY

src/dialogxml/dialogs/dialog.cpp

@@ -877,13 +877,7 @@ void cDialog::process_keystroke(cKey keyHit){
 		if(iter->second->isVisible() && iter->second->isClickable() && iter->second->getAttachedKey() == keyHit){
 			iter->second->setActive(true);
 			draw();
-			if(get_bool_pref("PlaySounds", true)) {
-				if(typeid(iter->second) == typeid(cLed*))
-					play_sound(34);
-				else play_sound(37);
-				sf::sleep(time_in_ticks(6));
-			}
-			else sf::sleep(time_in_ticks(14));
+			iter->second->playClickSound();
 			iter->second->setActive(false);
 			draw();
 			sf::sleep(sf::milliseconds(8));

src/dialogxml/widgets/control.cpp

@@ -210,6 +210,16 @@ void cControl::redraw() {
 	if(parent) parent->draw();
 }
 
+void cControl::playClickSound(){
+	if(get_bool_pref("PlaySounds", true)) {
+		if(typeid(this) == typeid(cLed*))
+			play_sound(34);
+		else play_sound(37);
+		sf::sleep(time_in_ticks(6));
+	}
+	else sf::sleep(time_in_ticks(14));
+}
+
 bool cControl::handleClick(location){
 	sf::Event e;
 	bool done = false, clicked = false;
@@ -231,13 +241,8 @@ bool cControl::handleClick(location){
 			depressed = frame.contains(toPos);
 		}
 	}
-	if(get_bool_pref("PlaySounds", true)) {
-		if(typeid(this) == typeid(cLed*))
-			play_sound(34);
-		else play_sound(37);
-		sf::sleep(time_in_ticks(6));
-	}
-	else sf::sleep(time_in_ticks(14));
+	playClickSound();
+	
 	redraw();
 	return clicked;
 }

src/dialogxml/widgets/control.hpp

@@ -451,6 +451,8 @@ protected:
 	/// Redraws the parent dialog, if any.
 	/// Intended to be called from handleClick(), where there is usually a minor event loop happening.
 	void redraw();
+	/// Plays the proper sound for this control being clicked on
+	void playClickSound();
 private:
 	friend class cDialog; // TODO: This is only so it can access parseColour... hack!
 	eControlType type;