GTK4 font increase makes lower window contents invisible, including command line

[habamax]

Steps to reproduce

1. gvim --clean
2. :set gfn=Monospace\ 20
3. type any ex command, e.g. :q -- it is outside of the window and you can't see it.

If you change window size with a mouse, it appears (with glitches):

Additionally, if you do the opposite, decrease font size:

There is a dead area and a command line is way off the bottom.

Expected behaviour

Same as gtk3 -- increasing or decreasing font size should put contents within window view.

Version of Vim

9.2.502

Environment

debian13, kde, gvim with gtk4

Logs and stack traces

[mattn]

Could you please try this patch?

diff --git a/src/gui_gtk4.c b/src/gui_gtk4.c
index 24ad6ddce2..9c86530f47 100644
--- a/src/gui_gtk4.c
+++ b/src/gui_gtk4.c
@@ -772,15 +772,9 @@ gui_mch_set_shellsize(int width, int height,
 	int base_width UNUSED, int base_height UNUSED,
 	int direction UNUSED)
 {
-    // Only set window size if it hasn't been shown yet (initial sizing).
-    // After that, the window size is controlled by the user/WM and
-    // Vim adapts to it via form_size_allocate -> gui_resize_shell.
-    if (!gtk_widget_get_realized(gui.mainwin))
-    {
-	width += get_menu_tool_width();
-	height += get_menu_tool_height();
-	gtk_window_set_default_size(GTK_WINDOW(gui.mainwin), width, height);
-    }
+    width += get_menu_tool_width();
+    height += get_menu_tool_height();
+    gtk_window_set_default_size(GTK_WINDOW(gui.mainwin), width, height);
 }
 
     void

[habamax]

Could you please try this patch?

Thx, yes this fixes the font changes issue.

Manual window resize with a mouse still could make window contents invisible, but that is another issue:

CTRL-L or :redraw after window resize fixes it.