Fix out-of-index crash by guarding against a 0-length string.

Ranchero-Software · Nov 7, 2020 · e297a53 · e297a53
1 parent 69911bd
commit e297a53
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/Mac/MainWindow/Timeline/Cell/MultilineTextFieldSizer.swift b/Mac/MainWindow/Timeline/Cell/MultilineTextFieldSizer.swift
@@ -53,7 +53,10 @@ final class MultilineTextFieldSizer {
 	}
 
 	static func size(for attributedString: NSAttributedString, numberOfLines: Int, width: Int) -> TextFieldSizeInfo {
-
+		guard attributedString.length > 0 else {
+			return TextFieldSizeInfo(size: NSSize.zero, numberOfLinesUsed: 0)
+		}
+
 		// Assumes the same font family/size for the whole string
 		let font = attributedString.attribute(.font, at: 0, effectiveRange: nil) as! NSFont