Trapezoid View

TrapezoidView

final class TrapezoidView: UIView {
	
	@IBInspectable
	var isLeft: Bool = true {
		didSet{
			self.initialize()
		}
	}
	@IBInspectable
	var color: UIColor = .white {
		didSet{
			self.initialize()
		}
	}
	private var path = UIBezierPath()
	
	override func draw(_ rect: CGRect) {
		self.initialize()
	}
	
	func initialize() {
		self.alpha = 1
		self.backgroundColor = .clear
		self.path = UIBezierPath()
		self.path.move(to: CGPoint(x: 0, y: 0))
		
		if self.isLeft {
			self.leftBottom()
		} else {
			self.rightBottom()
		}
		
		self.path.close()
		self.color.setFill()
		self.path.fill()
		UIColor.clear.setStroke()
		self.path.stroke()
	}
	
	func leftBottom() {
		self.path.addLine(to: CGPoint(x: self.frame.width, y: 0))
		self.path.addLine(to: CGPoint(x: self.frame.width, y: self.frame.height))
		self.path.addLine(to: CGPoint(x: 15, y: self.frame.height))
	}
	
	func rightBottom() {
		self.path.addLine(to: CGPoint(x: self.frame.width, y: 0))
		self.path.addLine(to: CGPoint(x: self.frame.width - 15, y: self.frame.height))
		self.path.addLine(to: CGPoint(x: 0, y: self.frame.height))
	}
}