Files
omnivore/apple/OmnivoreKit/Sources/Views/CustomFontRegistration.swift
2022-02-11 09:24:33 -08:00

46 lines
1.5 KiB
Swift

import SwiftUI
@discardableResult
public func registerFonts() -> Bool {
[
registerFont(bundle: .module, fontName: "Inter-Black", fontExtension: "ttf"),
registerFont(bundle: .module, fontName: "Inter-ExtraBold", fontExtension: "ttf"),
registerFont(bundle: .module, fontName: "Inter-Bold", fontExtension: "ttf"),
registerFont(bundle: .module, fontName: "Inter-SemiBold", fontExtension: "ttf"),
registerFont(bundle: .module, fontName: "Inter-Medium", fontExtension: "ttf"),
registerFont(bundle: .module, fontName: "Inter-Regular", fontExtension: "ttf"),
registerFont(bundle: .module, fontName: "Inter-Light", fontExtension: "ttf"),
registerFont(bundle: .module, fontName: "Inter-ExtraLight", fontExtension: "ttf"),
registerFont(bundle: .module, fontName: "Inter-Thin", fontExtension: "ttf")
]
.allSatisfy { $0 }
}
private func registerFont(bundle: Bundle, fontName: String, fontExtension: String) -> Bool {
guard let fontURL = bundle.url(forResource: fontName, withExtension: fontExtension) else {
return false
}
guard let fontDataProvider = CGDataProvider(url: fontURL as CFURL) else {
return false
}
guard let font = CGFont(fontDataProvider) else {
return false
}
var error: Unmanaged<CFError>?
guard CTFontManagerRegisterGraphicsFont(font, &error) else {
print(
"""
Error registering font: \(fontName). Maybe it was already registered.\
\(error.map { " \($0.takeUnretainedValue().localizedDescription)" } ?? "")
"""
)
return true
}
return true
}