Fixed bug where cross hairs were incrorrectly draw in Automation Editor

The cross hairs in the automation editor were incorrectly drawn
when moving another window infront.
This change only draws the cross hairs when the window has focus.

src/gui/editors/AutomationEditor.cpp

@@ -1314,8 +1314,9 @@ void AutomationEditor::paintEvent(QPaintEvent * pe )
 		m_leftRightScroll->setPageStep( l );
 	}
 
-	if( validPattern() )
+	if( validPattern() && GuiApplication::instance()->automationEditor()->hasFocus() )
 	{
+
 		drawCross( p );
 	}