29 lines
837 B
Swift
29 lines
837 B
Swift
//
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// UILabel+FontSize.swift
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// Hthik
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//
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// Created by Hthik on 12/25/15.
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// Copyright © 2015 Hthik. All rights reserved.
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//
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import UIKit
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internal extension UILabel
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{
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var currentScaleFactor: CGFloat
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{
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guard let text = self.text else { return 1.0 }
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let context = NSStringDrawingContext()
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context.minimumScaleFactor = self.minimumScaleFactor
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// Using self.attributedString returns incorrect calculations, so we create our own attributed string
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let attributedString = NSAttributedString(string: text, attributes: [.font: self.font!])
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attributedString.boundingRect(with: self.bounds.size, options: [.usesLineFragmentOrigin, .usesFontLeading], context: context)
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let scaleFactor = context.actualScaleFactor
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return scaleFactor
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}
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}
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