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Basic three-rect selection #30

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merged 1 commit into from
Jul 8, 2018
Merged

Basic three-rect selection #30

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26 changes: 25 additions & 1 deletion Source/StyledTextView.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -144,13 +144,37 @@ open class StyledTextView: UIView {

let range = NSRange(location: min, length: max - min)

var firstRect: CGRect = CGRect.null
var bodyRect: CGRect = CGRect.null
var lastRect: CGRect = CGRect.null

let path = UIBezierPath()

renderer.layoutManager.enumerateEnclosingRects(
forGlyphRange: range,
withinSelectedGlyphRange: NSRange(location: NSNotFound, length: 0),
in: renderer.textContainer
) { (rect, stop) in
path.append(UIBezierPath(roundedRect: rect.insetBy(dx: -2, dy: -2), cornerRadius: 3))
if firstRect.isNull {
firstRect = rect
} else if lastRect.isNull {
lastRect = rect
} else {
// We have a lastRect that was previously filled, now it needs to be dumped into the body
bodyRect = lastRect.intersection(bodyRect)
// and save the current rect as the new "lastRect"
lastRect = rect
}
}

if !firstRect.isNull {
path.append(UIBezierPath(roundedRect: firstRect.insetBy(dx: -2, dy: -2), cornerRadius: 3))
}
if !bodyRect.isNull {
path.append(UIBezierPath(roundedRect: bodyRect.insetBy(dx: -2, dy: -2), cornerRadius: 3))
}
if !lastRect.isNull {
path.append(UIBezierPath(roundedRect: lastRect.insetBy(dx: -2, dy: -2), cornerRadius: 3))
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Follow-up: put -2 and 3 into local vars

}

highlightLayer.frame = bounds
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