106 lines
3.6 KiB
Swift
106 lines
3.6 KiB
Swift
//
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// Copyright 2022 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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//
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import SignalServiceKit
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import UIKit
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extension UIFont {
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public class func font(for textStyle: TextAttachment.TextStyle, withPointSize pointSize: CGFloat) -> UIFont {
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let primaryFontName: String
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var fontNamesOrDescriptors: [Any]
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switch textStyle {
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case .regular:
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primaryFontName = "Inter-Regular_Medium"
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fontNamesOrDescriptors = [
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"KohinoorDevanagari-Regular",
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"PingFangHK-Regular",
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"PingFangTC-Regular",
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"PingFangSC-Regular",
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"HiraginoSans-W3",
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UIFont.systemFont(ofSize: 10, weight: .regular).fontDescriptor // Sans Serif Regular
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]
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case .bold:
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primaryFontName = "Inter-Regular_Black"
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fontNamesOrDescriptors = [
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"KohinoorDevanagari-Semibold",
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"PingFangHK-Semibold",
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"PingFangTC-Semibold",
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"PingFangSC-Semibold",
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"HiraginoSans-W7",
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UIFont.systemFont(ofSize: 10, weight: .bold).fontDescriptor // Sans Serif Bold
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]
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case .serif:
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primaryFontName = "EBGaramond-Regular"
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fontNamesOrDescriptors = [
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"DevanagariSangamMN",
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"PingFangHK-Ultralight",
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"PingFangTC-Ultralight",
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"PingFangSC-Ultralight",
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"GeezaPro",
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"HiraMinProN-W3"
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]
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// Serif Regular
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if let fontDescriptor = UIFontDescriptor
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.preferredFontDescriptor(withTextStyle: .body)
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.withSymbolicTraits(.classModernSerifs) {
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fontNamesOrDescriptors.append(fontDescriptor)
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}
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case .script:
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primaryFontName = "Parisienne-Regular"
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fontNamesOrDescriptors = [
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"AmericanTypewriter-Semibold",
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"DevanagariSangamMN-Bold",
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"PingFangHK-Thin",
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"PingFangTC-Thin",
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"PingFangSC-Thin",
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"GeezaPro-Bold",
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"HiraMinProN-W6"
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]
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// Serif Bold
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if let fontDescriptor = UIFontDescriptor
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.preferredFontDescriptor(withTextStyle: .body)
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.withSymbolicTraits(.classModernSerifs)?
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.withSymbolicTraits(.traitBold) {
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fontNamesOrDescriptors.append(fontDescriptor)
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}
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case .condensed:
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primaryFontName = "BarlowCondensed-Medium"
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fontNamesOrDescriptors = [
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"KohinoorDevanagari-Light",
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"PingFangHK-Light",
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"PingFangTC-Light",
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"PingFangSC-Light",
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"HiraMaruProN-W4",
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UIFont.systemFont(ofSize: 10, weight: .black).fontDescriptor // Sans Serif Black
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]
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}
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let cascadeList: [UIFontDescriptor] = fontNamesOrDescriptors.compactMap { fontNameOrDescriptor in
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if let fontDescriptor = fontNameOrDescriptor as? UIFontDescriptor {
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return fontDescriptor
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}
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if let fontName = fontNameOrDescriptor as? String {
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return UIFontDescriptor(fontAttributes: [ .name: fontName ])
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}
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owsFailDebug("Not a String or UIFontDescriptor.")
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return nil
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}
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let descriptor = UIFontDescriptor(fontAttributes: [
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.name: primaryFontName,
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.cascadeList: cascadeList
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])
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return UIFont(descriptor: descriptor, size: pointSize)
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}
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}
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