drawImageScaled

drawImageScaled

    func drawImageScaled(_ image: UIImage?) {
        print("we are scalling the drawing")
        // just draws the image scaled down and centered

        let selfRatio: CGFloat = frame.size.width / frame.size.height //change the size later
        let imgRatio: CGFloat = (image?.size.width ?? 0.0) / (image?.size.height ?? 0.0)

        var rect : CGRect
        rect = CGRect(x: 0, y: 0, width: 0, height: 0)

        if selfRatio > imgRatio {
            // view is wider than img
            rect.size.height = frame.size.height
            rect.size.width = imgRatio * (rect.size.height ?? 0.0)
        } else {
            // img is wider than view
            rect.size.width = frame.size.width
            rect.size.height = (rect.size.width ?? 0.0) / imgRatio
        }

        rect.origin.x = 0.5 * (frame.size.width - (rect.size.width ?? 0.0))
        rect.origin.y = 0.5 * (frame.size.height - (rect.size.height ?? 0.0))

        image?.draw(in: rect ?? CGRect.zero)
    }