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Use bit mask for font attribute calculation

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This commit is contained in:
Ali
2023-10-20 11:46:52 +04:00
parent 74042f17f0
commit 03e09b7489
2 changed files with 72 additions and 81 deletions
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29
submodules/TextFormat/Sources/ChatTextInputAttributes.swift
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@@ -57,17 +57,40 @@ public func stateAttributedStringForText(_ text: NSAttributedString) -> NSAttrib
return result
}
public struct ChatTextFontAttributes: OptionSet {
public var rawValue: Int32 = 0
public struct ChatTextFontAttributes: OptionSet, Hashable, Sequence {
public var rawValue: UInt32 = 0
public init(rawValue: Int32) {
public init(rawValue: UInt32) {
self.rawValue = rawValue
}
public init() {
self.rawValue = 0
}
public static let bold = ChatTextFontAttributes(rawValue: 1 << 0)
public static let italic = ChatTextFontAttributes(rawValue: 1 << 1)
public static let monospace = ChatTextFontAttributes(rawValue: 1 << 2)
public static let blockQuote = ChatTextFontAttributes(rawValue: 1 << 3)
public func makeIterator() -> AnyIterator<ChatTextFontAttributes> {
var index = 0
return AnyIterator { () -> ChatTextFontAttributes? in
while index < 31 {
let currentTags = self.rawValue >> UInt32(index)
let tag = ChatTextFontAttributes(rawValue: 1 << UInt32(index))
index += 1
if currentTags == 0 {
break
}
if (currentTags & 1) != 0 {
return tag
}
}
return nil
}
}
}
public func textAttributedStringForStateText(_ stateText: NSAttributedString, fontSize: CGFloat, textColor: UIColor, accentTextColor: UIColor, writingDirection: NSWritingDirection?, spoilersRevealed: Bool, availableEmojis: Set<String>, emojiViewProvider: ((ChatTextInputTextCustomEmojiAttribute) -> UIView)?) -> NSAttributedString {