 	- Returns: A Boolean of the result, true if yes, false 
 	otherwise.
 	*/
-	private func isPointContainedWithinRect(point: CGPoint) -> Bool {
+	private func isPointContainedWithinLeftThreshold(point: CGPoint) -> Bool {
 		return CGRectContainsPoint(CGRectMake(0, 0, horizontalThreshold, view.frame.height), point)
 	}
 	

	public private(set) lazy var backdropLayer: CAShapeLayer = CAShapeLayer()
	
	/**
	A CGFloat property that accesses the horizontal threshold of
	the SideNavigationViewController. When the panning gesture has
	ended, if the position is beyond the horizontal threshold,
	the leftView is opened, if it is below the threshold, the
	leftView is closed. The horizontal threshold is always at half
	the width of the leftView.
	*/
	public private(set) var horizontalThreshold: CGFloat = 0
	
	/**
	A SideNavigationViewControllerDelegate property used to bind

	A UIPanGestureRecognizer property internally used for the
	pan gesture.
	*/
	private var panGesture: UIPanGestureRecognizer?
	
	/**
	A UITapGestureRecognizer property internally used for the 
	tap gesture.
	*/
	private var tapGesture: UITapGestureRecognizer?
	
	/**
	A CAShapeLayer property that is used as the backdrop when 
