Value of type '(CGFloat, CGFloat) -> CGRect' has no member 'origin'

Question

I am trying to use CGRect.insetBy( dx : ... , dy : ...) but the code gives me an error which can't be solved at all.

func scaleRect (rect: CGRect , xScale : CGFloat, yScale : CGFloat , offset : CGPoint) -> (CGRect){
    let width = rect.width
    let height = rect.height
    let scaleUp : CGFloat = 2.0

    var newWidth  = sqrt(width * width * scaleUp)
    var newHeight = sqrt(height * height * scaleUp)


    var newRect = rect.insetBy(dx: (width - newWidth)/2, dy: (height - newHeight)/2)
          // error here ***  Value of type '(CGFloat, CGFloat) -> CGRect' has no member 'origin'

    var resultRect = CGRect(x: newRect.origin.x, y: newRect.origin.y, width: newRect.size.width, height: newRect.size.height)

    resultRect = CGRect.offsetBy(resultRect, offset.x , offset.y)
    return resultRect
}

Answer 1

You should use offsetBy like this according to Swift,

let rect = resultRect.offsetBy(dx: offset.x, dy: offset.y)

Learn more about insetBy and offsetBy and CGGeometry