 		bezierPath.stroke()
 	}
 
-	// MARK: Clearing
+	// MARK: - Clearing
 	
 	func clear() {
 		preRenderImage = nil

		setNeedsDisplay()
	}
	
	// MARK: Other

	func hasLines() -> Bool {
		return preRenderImage != nil || !bezierPath.empty

		UIGraphicsEndImageContext()
	}
	
	// MARK: - Render
	
	override func drawRect(rect: CGRect) {
		super.drawRect(rect)
