From 95370b23c055ed669597faf4de4bfcfa1dc3fde8 Mon Sep 17 00:00:00 2001
From: Henrik Friedrichsen <henrik@affekt.org>
Date: Tue, 9 Apr 2019 22:00:54 +0200
Subject: [PATCH] simplified overflow-safe subtraction

---
 src/ui/listview.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/ui/listview.rs b/src/ui/listview.rs
index 491e17c..e515495 100644
--- a/src/ui/listview.rs
+++ b/src/ui/listview.rs
@@ -86,9 +86,9 @@ impl<I: ListItem> View for ListView<I> {
             });
 
             // draw ".." to indicate a cut off string
-            let max_length = printer.size.x.checked_sub(right.width() + 1).unwrap_or(0);
+            let max_length = printer.size.x.saturating_sub(right.width() + 1);
             if max_length < left.width() {
-                let offset = max_length.checked_sub(1).unwrap_or(0);
+                let offset = max_length.saturating_sub(1);
                 printer.with_color(style, |printer| {
                     printer.print((offset, 0), "..");
                 });