(svn r21447) -Add: accessor function to get the direction of a scrollbar

src/widget_type.h

@@ -559,6 +559,15 @@ public:
 		return IsInsideBS(item, this->GetPosition(), this->GetCapacity());
 	}
 
+	/**
+	 * Is the scrollbar vertical or not?
+	 * @return True iff the scrollbar is vertical.
+	 */
+	FORCEINLINE bool IsVertical() const
+	{
+		return this->is_vertical;
+	}
+
 	/**
 	 * Sets the number of elements in the list
 	 * @param num the number of elements in the list