FreshRSS/NetNewsWire
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Use a nested function for superscript/subscript features

Browse Source
This commit is contained in:
Nate Weaver 2020-04-26 11:10:59 -05:00
parent fd672c5ce6
commit b722e75d9e
1 changed files with 9 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
Shared/Extensions/NSAttributedString+NetNewsWire.swift
View File

@ -291,22 +291,23 @@ extension NSAttributedString {
descriptor = descriptor.withSymbolicTraits(symbolicTraits)
}
if styles.contains(.superscript) {
func verticalPositionFeature(forSuperscript: Bool) -> [FontDescriptor.FeatureKey: Any] {
#if canImport(AppKit)
let features: [FontDescriptor.FeatureKey: Any] = [.typeIdentifier: kVerticalPositionType, .selectorIdentifier: kSuperiorsSelector]
let features: [FontDescriptor.FeatureKey: Any] = [.typeIdentifier: kVerticalPositionType, .selectorIdentifier: forSuperscript ? kSuperiorsSelector : kInferiorsSelector]
#else
let features: [FontDescriptor.FeatureKey: Any] = [.featureIdentifier: kVerticalPositionType, .typeIdentifier: kSuperiorsSelector]
let features: [FontDescriptor.FeatureKey: Any] = [.featureIdentifier: kVerticalPositionType, .typeIdentifier: forSuperscript ? kSuperiorsSelector : kInferiorsSelector]
#endif
return features
}
if styles.contains(.superscript) {
let features = verticalPositionFeature(forSuperscript: true)
let descriptorAttributes: [FontDescriptor.AttributeName: Any] = [.featureSettings: [features]]
descriptor = descriptor.addingAttributes(descriptorAttributes)
}
if styles.contains(.subscript) {
#if canImport(AppKit)
let features: [FontDescriptor.FeatureKey: Any] = [.typeIdentifier: kVerticalPositionType, .selectorIdentifier: kInferiorsSelector]
#else
let features: [FontDescriptor.FeatureKey: Any] = [.featureIdentifier: kVerticalPositionType, .typeIdentifier: kInferiorsSelector]
#endif
let features = verticalPositionFeature(forSuperscript: false)
let descriptorAttributes: [FontDescriptor.AttributeName: Any] = [.featureSettings: [features]]
descriptor = currentDescriptor.addingAttributes(descriptorAttributes)
}