mastodon-ios/Mastodon/Extension/UIFont.swift

//
//  UIFont.swift
//  Mastodon
//
//  Created by BradGao on 2021/2/20.
//

import UIKit

extension UIFont {
    private func withTraits(traits: UIFontDescriptor.SymbolicTraits) -> UIFont {
        let descriptor = fontDescriptor.withSymbolicTraits(traits)
        return UIFont(descriptor: descriptor!, size: 0) //size 0 means keep the size as it is
    }
    
    func bold() -> UIFont {
        return withTraits(traits: .traitBold)
    }
    
    func italic() -> UIFont {
        return withTraits(traits: .traitItalic)
    }
}