From be9b4cb36c9ae7349e31e4703065e76b231fc6b6 Mon Sep 17 00:00:00 2001
From: grovesNL <josh@joshgroves.com>
Date: Thu, 26 Jan 2023 22:16:23 -0330
Subject: [PATCH] Avoid negative width/height in `Buffer::set_size`

Negative width/height may cause unexpected effects on the layout, which
we can avoid by clamping.
---
 src/buffer.rs | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/buffer.rs b/src/buffer.rs
index da7e8ad..e12bca1 100644
--- a/src/buffer.rs
+++ b/src/buffer.rs
@@ -516,9 +516,12 @@ impl<'a> Buffer<'a> {
 
     /// Set the current buffer dimensions
     pub fn set_size(&mut self, width: i32, height: i32) {
-        if width != self.width || height != self.height {
-            self.width = width;
-            self.height = height;
+        let clamped_width = width.max(0);
+        let clamped_height = height.max(0);
+
+        if clamped_width != self.width || clamped_height != self.height {
+            self.width = clamped_width;
+            self.height = clamped_height;
             self.relayout();
             self.shape_until_scroll();
         }