master 9210eac585 1/3: Make sure the menu-bar height is updated on X when fonts change

[Eli Zaretskii]

branch: master
commit 9210eac58525f79e6cc6e6ae749c7a84e2897984
Author: Manuel Giraud <manuel@ledu-giraud.fr>
Commit: Eli Zaretskii <eliz@gnu.org>

    Make sure the menu-bar height is updated on X when fonts change
    
    * src/xdisp.c (display_menu_bar) [HAVE_X_WINDOWS]: Update
    menu_bar_window height in non-toolkit X builds.  (Bug#59351)
---
 src/xdisp.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/src/xdisp.c b/src/xdisp.c
index b09aa6ec96..17fff71fda 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -26310,11 +26310,11 @@ display_menu_bar (struct window *w)
   it.first_visible_x = 0;
   it.last_visible_x = FRAME_PIXEL_WIDTH (f);
 #elif defined (HAVE_X_WINDOWS) /* X without toolkit.  */
+  struct window *menu_w;
   if (FRAME_WINDOW_P (f))
     {
       /* Menu bar lines are displayed in the desired matrix of the
         dummy window menu_bar_window.  */
-      struct window *menu_w;
       menu_w = XWINDOW (f->menu_bar_window);
       init_iterator (&it, menu_w, -1, -1, menu_w->desired_matrix->rows,
                     MENU_FACE_ID);
@@ -26373,6 +26373,22 @@ display_menu_bar (struct window *w)
 
   /* Compute the total height of the lines.  */
   compute_line_metrics (&it);
+
+#if defined (HAVE_X_WINDOWS) && !defined (USE_X_TOOLKIT) && !defined (USE_GTK)
+  /* With the non-toolkit version, modify the menu bar window height
+     accordingly.  */
+  if (FRAME_WINDOW_P (it.f))
+    {
+      struct glyph_row *row = it.glyph_row;
+      int delta_height = ((row->y + row->height)
+                         - WINDOW_BOX_HEIGHT_NO_MODE_LINE (menu_w));
+      if (delta_height != 0)
+        {
+         FRAME_MENU_BAR_HEIGHT (it.f) += delta_height;
+         adjust_frame_size (it.f, -1, -1, 3, false, Qmenu_bar_lines);
+       }
+    }
+#endif
 }
 
 /* Deep copy of a glyph row, including the glyphs.  */