From ab8fddd5938024beca3a97eab9022db07f675a3c Mon Sep 17 00:00:00 2001
From: Eike Christian Karbe <38853513+ekarbe@users.noreply.github.com>
Date: Thu, 18 Apr 2019 00:42:27 +0200
Subject: Call TIOCSWINSZ only on grid change

Instead of calling TIOCSWINSZ for every pixel change it will now be called only on changes to the grid size. This should reduce screen refreshes.

This fixes #2177.
---
 src/display.rs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/display.rs b/src/display.rs
index ed88f957..58c58e3a 100644
--- a/src/display.rs
+++ b/src/display.rs
@@ -388,6 +388,8 @@ impl Display {
             let height = psize.height as f32;
             let cell_width = self.size_info.cell_width;
             let cell_height = self.size_info.cell_height;
+            let previous_cols = self.size_info.cols();
+            let previous_lines = self.size_info.lines();
 
             self.size_info.width = width;
             self.size_info.height = height;
@@ -412,7 +414,10 @@ impl Display {
             if let Some(message) = terminal.message_buffer_mut().message() {
                 pty_size.height -= pty_size.cell_height * message.text(&size).len() as f32;
             }
-            pty_resize_handle.on_resize(&pty_size);
+
+            if previous_cols != size.cols() || previous_lines != size.lines()  {
+                pty_resize_handle.on_resize(&pty_size);
+            }
 
             self.window.resize(psize);
             self.renderer.resize(psize, self.size_info.padding_x, self.size_info.padding_y);
-- 
cgit