[gtk/gtk-4-2: 13/91] settings: Make font-size changes apply immediately

[Matthias Clasen <matthiasc src gnome org>]

commit 610f5ce75cdcf3aea42e4ffbc5adfc17080f4679
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Apr 2 23:04:09 2021 -0400

    settings: Make font-size changes apply immediately
    
    We need to invalidate the style when font-size changes,
    because we propagate this value through the initial
    value of the CSS font-size property, and it will not
    be recomputed otherwise.

 gtk/gtksettings.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/gtk/gtksettings.c b/gtk/gtksettings.c
index 6d096698b0..b88c6ea37d 100644
--- a/gtk/gtksettings.c
+++ b/gtk/gtksettings.c
@@ -1432,6 +1432,7 @@ gtk_settings_notify (GObject    *object,
       settings_update_theme (settings);
       break;
     case PROP_XFT_DPI:
+      settings_invalidate_style (settings);
       gtk_system_setting_changed (settings->display, GTK_SYSTEM_SETTING_DPI);
       break;
     case PROP_XFT_ANTIALIAS: