override func drawRect(rect: CGRect) {
let context = UIGraphicsGetCurrentContext();
CGContextSetStrokeColorWithColor(context, strokeColor.CGColor)
CGContextSetFillColorWithColor(context, fillColor.CGColor)
CGContextSetLineWidth(context, lineWidth);
CGContextMoveToPoint(context, (self.frame.width / 2) , lineWidth)
CGContextAddLineToPoint(context, self.frame.width - lineWidth, self.frame.height - lineWidth)
CGContextAddLineToPoint(context, lineWidth, self.frame.height - lineWidth)
CGContextClosePath(context)
CGContextDrawPath(context, kCGPathFillStroke)
CGContextStrokePath(context)
}