UIView frame extension

UIView+frame.swift

import UIKit

extension UIView {
    public var top: CGFloat {
        get {
            return self.frame.origin.y
        }
        set {
            var frame = self.frame
            frame.origin.y = newValue
            self.frame = frame
        }
    }

    public var left: CGFloat {
        get {
            return self.frame.origin.x
        }
        set {
            var frame = self.frame
            frame.origin.x = newValue
            self.frame = frame
        }
    }

    public var bottom: CGFloat {
        get {
            return self.frame.origin.y + self.frame.size.height
        }
        set {
            var frame = self.frame
            frame.origin.y = newValue - self.frame.size.height
            self.frame = frame
        }
    }

    public var right: CGFloat {
        get {
            return self.frame.origin.x + self.frame.size.width
        }
        set {
            var frame = self.frame
            frame.origin.x = newValue - self.frame.size.width
            self.frame = frame
        }
    }

    public var width: CGFloat {
        get {
            return self.frame.size.width
        }
        set {
            var frame = self.frame
            frame.size.width = newValue
            self.frame = frame
        }
    }

    public var height: CGFloat {
        get {
            return self.frame.size.height
        }
        set {
            var frame = self.frame
            frame.size.height = newValue
            self.frame = frame
        }
    }

    public var centerX: CGFloat {
        get {
            return self.center.x
        }
        set {
            self.center = CGPoint(x: newValue, y: self.center.y)
        }
    }

    public var centerY: CGFloat {
        get {
            return self.center.y
        }
        set {
            self.center = CGPoint(x: self.center.x, y: newValue)
        }
    }

    public var origin: CGPoint {
        get {
            return self.frame.origin
        }
        set {
            var frame = self.frame
            frame.origin = newValue
            self.frame = frame
        }
    }

    public var size: CGSize {
        get {
            return self.frame.size
        }
        set {
            var frame = self.frame
            frame.size = newValue
            self.frame = frame
        }
    }

}