From 3f32f8e390c921f974e22260b9132f855b640758 Mon Sep 17 00:00:00 2001
From: Benedikt Stebner <b.stebner@outlook.de>
Date: Fri, 28 Jan 2022 13:32:34 +0100
Subject: [PATCH] Fix GetLineIndexFromCharacterIndex

---
 src/Avalonia.Visuals/Media/TextFormatting/TextLayout.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Avalonia.Visuals/Media/TextFormatting/TextLayout.cs b/src/Avalonia.Visuals/Media/TextFormatting/TextLayout.cs
index 646204021b..0cc09e8259 100644
--- a/src/Avalonia.Visuals/Media/TextFormatting/TextLayout.cs
+++ b/src/Avalonia.Visuals/Media/TextFormatting/TextLayout.cs
@@ -394,12 +394,12 @@ namespace Avalonia.Media.TextFormatting
             {
                 var textLine = TextLines[index];
 
-                if (textLine.TextRange.End < charIndex)
+                if (textLine.TextRange.Start + textLine.TextRange.Length < charIndex)
                 {
                     continue;
                 }
 
-                if (charIndex >= textLine.Start && charIndex <= textLine.TextRange.End)
+                if (charIndex >= textLine.Start && charIndex <= textLine.TextRange.Start + textLine.TextRange.Length)
                 {
                     return index;
                 }