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swift 4 goodies #4

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swift 4 goodies #4

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5a0b51f
swift 4
nikans Apr 10, 2018
ed1063a
swift 4
nikans Apr 10, 2018
7064960
swift 4
nikans Apr 10, 2018
ae00209
swift 4
nikans Apr 10, 2018
bcc7cdf
init with coder
nikans Apr 10, 2018
e76ea59
font style fixes
nikans Apr 14, 2018
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swift 4
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@nikans
nikans authored Apr 10, 2018
commit ae0020937623f8c0897b42f7b00db526d3ae7a87
32 changes: 10 additions & 22 deletions Source/UIGestureRecognizer+UILabel.swift
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Expand Up @@ -12,42 +12,30 @@ import UIKit.UIGestureRecognizerSubclass
extension UIGestureRecognizer {
//Returns a character that was touched, or nil if none.
func indexOfCharacterTouched(label: UILabel) -> Int? {
let locationOfTouchInLabel = self.location(in: label)

return label.indexOfCharacter(atPoint: locationOfTouchInLabel)
}
}

public extension UILabel {
public func indexOfCharacter(atPoint point: CGPoint) -> Int? {
if self.attributedText == nil {
if label.attributedText == nil {
return nil
}

let layoutManager = NSLayoutManager()
let textContainer = NSTextContainer()
let textStorage = NSTextStorage(attributedString: self.attributedText!)
let textStorage = NSTextStorage(attributedString: label.attributedText!)

layoutManager.addTextContainer(textContainer)
textStorage.addLayoutManager(layoutManager)

textContainer.lineFragmentPadding = 0
textContainer.lineBreakMode = self.lineBreakMode
textContainer.maximumNumberOfLines = self.numberOfLines
textContainer.size = self.bounds.size
textContainer.lineBreakMode = label.lineBreakMode
textContainer.maximumNumberOfLines = label.numberOfLines
textContainer.size = label.bounds.size

let locationOfTouchInLabel = self.location(in: label)
let textBoundingBox = layoutManager.usedRect(for: textContainer)

if !textBoundingBox.contains(point) {
return nil
}

let textContainerOffset = CGPoint(
x: (self.bounds.size.width - textBoundingBox.size.width) * 0.5 - textBoundingBox.origin.x,
y: (self.bounds.size.height - textBoundingBox.size.height) * 0.5 - textBoundingBox.origin.y)
x: (label.bounds.size.width - textBoundingBox.size.width) * 0.5 - textBoundingBox.origin.x,
y: (label.bounds.size.height - textBoundingBox.size.height) * 0.5 - textBoundingBox.origin.y)
let locationOfTouchInTextContainer = CGPoint(
x: point.x - textContainerOffset.x,
y: point.y - textContainerOffset.y)
x: locationOfTouchInLabel.x - textContainerOffset.x,
y: locationOfTouchInLabel.y - textContainerOffset.y)
let indexOfCharacter = layoutManager.characterIndex(
for: locationOfTouchInTextContainer,
in: textContainer,
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