Resize the window by cell dimensions

This should resize window by cell dimensions granularity instead of
using pixels.

Fixes #388.

1 files changed, 6 insertions, 0 deletions

diff --git a/alacritty/src/display/mod.rs b/alacritty/src/display/mod.rs
index 605ac3f2..243167b2 100644
--- a/alacritty/src/display/mod.rs
+++ b/alacritty/src/display/mod.rs
@@ -469,6 +469,9 @@ impl Display {
             renderer.finish();
         }
 
+        // Set resize increments for the newly created window.
+        window.set_resize_increments(PhysicalSize::new(cell_width, cell_height));
+
         window.set_visible(true);
 
         #[allow(clippy::single_match)]
@@ -642,6 +645,9 @@ impl Display {
         let search_lines = usize::from(search_active);
         new_size.reserve_lines(message_bar_lines + search_lines);
 
+        // Update resize increments.
+        self.window.set_resize_increments(PhysicalSize::new(cell_width, cell_height));
+
         // Resize PTY.
         pty_resize_handle.on_resize(new_size.into());