[UIInsetLabel] A custom UILabel that can be inset #swift #uikit

UIInsetLabel.swift

/// An UILabel that allows insetting the label
class UIInsetLabel: UILabel {
    /// The insets to inset the main `rect` by
    var insets: UIEdgeInsets
    
    init(insets: UIEdgeInsets) {
        self.insets = insets
        super.init(frame: .zero)
    }
    
    required init?(coder aDecoder: NSCoder) { fatalError("init(coder:) has not been implemented") }
    
    override func textRect(forBounds bounds: CGRect, limitedToNumberOfLines numberOfLines: Int) -> CGRect {
        let insetRect = UIEdgeInsetsInsetRect(bounds, insets)
        let textRect = super.textRect(forBounds: insetRect, limitedToNumberOfLines: numberOfLines)
        let invertedInsets = UIEdgeInsets(top: -insets.top, left: -insets.left, bottom: -insets.bottom, right: -insets.right)
        
        return UIEdgeInsetsInsetRect(textRect, invertedInsets)
    }

    
    override func drawText(in rect: CGRect) {
        super.drawText(in: UIEdgeInsetsInsetRect(rect, insets))
    }
}