68 lines
2.4 KiB
Swift
68 lines
2.4 KiB
Swift
// Copyright © 2020 Metabolist. All rights reserved.
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import Mastodon
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import UIKit
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extension String {
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static var separator: Self {
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(Locale.autoupdatingCurrent.groupingSeparator ?? ",").appending(" ")
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}
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func height(width: CGFloat, font: UIFont) -> CGFloat {
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(self as NSString).boundingRect(
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with: CGSize(width: width, height: .greatestFiniteMagnitude),
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options: .usesLineFragmentOrigin,
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attributes: [.font: font],
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context: nil)
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.height
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}
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func countEmphasizedAttributedString(count: Int, highlighted: Bool = false) -> NSAttributedString {
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let countRange = (self as NSString).range(of: String.localizedStringWithFormat("%ld", count))
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let attributed = NSMutableAttributedString(
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string: self,
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attributes: [
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.font: UIFont.preferredFont(forTextStyle: .body),
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.foregroundColor: highlighted ? UIColor.tertiaryLabel : UIColor.secondaryLabel
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])
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attributed.addAttributes(
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[
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.font: UIFont.preferredFont(forTextStyle: .headline),
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.foregroundColor: highlighted ? UIColor.secondaryLabel : UIColor.label
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],
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range: countRange)
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return attributed
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}
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func localizedBolding(displayName: String, emojis: [Emoji], label: UILabel) -> NSAttributedString {
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let mutableString = NSMutableAttributedString(
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string: String.localizedStringWithFormat(
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NSLocalizedString(self, comment: ""),
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displayName))
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let range = (mutableString.string as NSString).range(of: displayName)
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if range.location != NSNotFound,
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let boldFontDescriptor = label.font.fontDescriptor.withSymbolicTraits([.traitBold]) {
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let boldFont = UIFont(descriptor: boldFontDescriptor, size: label.font.pointSize)
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mutableString.setAttributes([NSAttributedString.Key.font: boldFont], range: range)
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}
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mutableString.insert(emojis: emojis, view: label)
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mutableString.resizeAttachments(toLineHeight: label.font.lineHeight)
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return mutableString
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}
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func appendingWithSeparator(_ string: Self) -> Self {
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appending(Self.separator).appending(string)
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}
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mutating func appendWithSeparator(_ string: Self) {
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append(Self.separator.appending(string))
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}
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}
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