//
//  LargerButton.swift
//  PaiAi
//
//  Created by mac on 16/7/21.
//  Copyright © 2016年 FFIB. All rights reserved.
//

import UIKit

class LargerButton: UIButton {

    @IBInspectable var expandLeft: CGFloat = 0
    @IBInspectable var expandRight: CGFloat = 0
    @IBInspectable var expandTop: CGFloat = 0
    @IBInspectable var expandBottom: CGFloat = 0

    var expandEdge: UIEdgeInsets {
        set {
            expandLeft = newValue.left
            expandRight = newValue.right
            expandTop = newValue.top
            expandBottom = newValue.bottom
        }
        get {
            return UIEdgeInsets(top: expandTop, left: expandLeft, bottom: expandBottom, right: expandRight)
        }
    }

    override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {

        let largerRect = CGRect(x: -expandLeft, y: -expandTop, width: bounds.width + expandLeft + expandRight, height: bounds.height + expandTop + expandBottom)
        if largerRect.contains(point) {
            return self
        } else {
            return nil
        }
    }

}