Repo created

iphone/Maps/Core/Theme/Renderers/UILabelRenderer.swift

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+extension UILabel {
+  var isAttributed: Bool {
+    guard let attributedText = attributedText else {
+      return false
+    }
+    guard !attributedText.string.isEmpty else {
+      return false
+    }
+    var range = NSRange()
+    attributedText.attributes(at: 0, effectiveRange: &range)
+    return attributedText.string.count != range.length
+  }
+
+  @objc override func applyTheme() {
+    for style in StyleManager.shared.getStyle(styleName)
+      where !style.isEmpty && !style.hasExclusion(view: self) {
+      UILabelRenderer.render(self, style: style)
+    }
+  }
+
+  @objc func sw_setAttributedText(text: NSAttributedString) -> CGRect {
+    var attributedString = text
+    if styleName.isEmpty == false {
+      let styles = StyleManager.shared.getStyle(styleName)
+      for style in styles where style.attributes != nil {
+        attributedString = UILabelRenderer.transformText(style: style,
+                                                         text: attributedString)
+      }
+    }
+    return self.sw_setAttributedText(text: attributedString)
+  }
+}
+
+class UILabelRenderer: UIViewRenderer {
+  class func render(_ control: UILabel, style: Style) {
+    super.render(control, style: style)
+    if let font = style.font {
+      control.font = font
+    }
+    if let fontColor = style.fontColor {
+      control.textColor = fontColor
+    }
+    if let textAlignment = style.textAlignment {
+      control.textAlignment = textAlignment
+    }
+    if style.attributes != nil,
+      control.isAttributed,
+      let attributedText = control.attributedText {
+      control.attributedText = attributedText
+    }
+  }
+
+  class func transformText(style: Style, text: NSAttributedString) -> NSAttributedString {
+    if let attributes = style.attributes,
+      attributes.isEmpty == false,
+      let attributedtext = text.mutableCopy() as? NSMutableAttributedString{
+      attributedtext.setAttributes(attributes, range: NSRange(location: 0, length: attributedtext.length));
+      return attributedtext
+    }
+    return text
+  }
+}