From 4f561e93b8cff364196475a97fb2bfefcd1c7092 Mon Sep 17 00:00:00 2001
From: Blaž Hrastnik
Date: Mon, 7 Jun 2021 09:29:21 +0900
Subject: View mode: Use saturating_sub when calculating first_col

---
 helix-term/src/commands.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'helix-term/src')

diff --git a/helix-term/src/commands.rs b/helix-term/src/commands.rs
index f260d3eb..fe334117 100644
--- a/helix-term/src/commands.rs
+++ b/helix-term/src/commands.rs
@@ -2502,7 +2502,7 @@ pub fn view_mode(cx: &mut Context) {
                     let pos = coords_at_pos(doc.text().slice(..), pos);
 
                     const OFFSET: usize = 7; // gutters
-                    view.first_col = pos.col.saturating_sub((view.area.width as usize - OFFSET) / 2);
+                    view.first_col = pos.col.saturating_sub(((view.area.width as usize).saturating_sub(OFFSET)) / 2);
                 },
                 'h' => (),
                 'j' => scroll(cx, 1, Direction::Forward),
-- 
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