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March 1, 2019 07:27
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Chinese font oblique type
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| ```swift | |
| func modifyTraits(_ traits: UIFontDescriptorSymbolicTraits, enable: Bool) -> UIFont { | |
| // FIXME: - Chinese oblique type | |
| if newTraits.contains(.traitItalic) && familyDescriptor.postscriptName.hasPrefix(".PingFangSC") { | |
| let _c = tanf(Float(15.0 * CGFloat.pi / 180.0)) | |
| let matrix = CGAffineTransform(a: 1, b: 0, c: CGFloat(_c), d: 1, tx: 0, ty: 0) | |
| let chineseItalicDescriptor = UIFontDescriptor(name: "", matrix: matrix) | |
| return UIFont(descriptor: chineseItalicDescriptor, size: pointSize) | |
| } | |
| } | |
| ``` |
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