Wayland: Fix resize of menutitle windows when across 2 screens with diverse scaling - cont'd.

src/Fl_Menu.cxx

@@ -1,7 +1,7 @@
 //
 // Menu code for the Fast Light Tool Kit (FLTK).
 //
-// Copyright 1998-2025 by Bill Spitzak and others.
+// Copyright 1998-2026 by Bill Spitzak and others.
 //
 // This library is free software. Distribution and use rights are outlined in
 // the file "COPYING" which should have been included with this file.  If this
@@ -1659,12 +1659,18 @@ Fl_Window *Fl_Window_Driver::menu_parent(int *display_height) {
   return Menu_Window::parent_;
 }
 
-/* Cast to menuwindow if win is of claa menuwindow and the driver is initialized. */
+/* Cast to Menu_Window* if win is of class Menu_Window and the driver is initialized. */
 static Menu_Window *to_menuwindow(Fl_Window *win) {
   if (!Fl_Window_Driver::driver(win)->popup_window() || !win->menu_window()) return nullptr;
   return ((Menu_Window_Basetype*)win)->as_menuwindow();
 }
 
+/** Returns whether win is from class Menu_Title_Window */
+bool Fl_Window_Driver::to_menutitle(Fl_Window *win) {
+  if (!Fl_Window_Driver::driver(win)->popup_window() || !win->menu_window()) return false;
+  return !((Menu_Window_Basetype*)win)->as_menuwindow();
+}
+
 /** Accessor to the "origin" member variable of class menuwindow.
   Variable origin is not NULL when 2 menuwindow's occur, one being a submenu of the other;
   it links the menuwindow at right to the one at left.

src/Fl_Window_Driver.H

@@ -2,7 +2,7 @@
 // A base class for platform specific window handling code
 // for the Fast Light Tool Kit (FLTK).
 //
-// Copyright 2010-2025 by Bill Spitzak and others.
+// Copyright 2010-2026 by Bill Spitzak and others.
 //
 // This library is free software. Distribution and use rights are outlined in
 // the file "COPYING" which should have been included with this file.  If this
@@ -197,6 +197,7 @@ public:
   // when that's not the case, as with Wayland.
   virtual void reposition_menu_window(int x, int y);
   virtual void menu_window_area(int &X, int &Y, int &W, int &H, int nscreen = -1);
+  static bool to_menutitle(Fl_Window*);
   static Fl_Window *menu_parent(int *display_height = NULL);
   static Fl_Window *menu_leftorigin(Fl_Window*);
   static Fl_Window *menu_title(Fl_Window*);

src/drivers/Wayland/Fl_Wayland_Window_Driver.cxx

@@ -558,7 +558,7 @@ void Fl_Wayland_Window_Driver::size_range() {
     pWindow->get_size_range(&minw, &minh, &maxw, &maxh, NULL, NULL, NULL);
     if (wl_win->kind == DECORATED && wl_win->frame) {
       int X,Y,W,H;
-      Fl::screen_work_area(X,Y,W,H, Fl::screen_num(x(),y(),w(),h()));
+      Fl::screen_work_area(X,Y,W,H, pWindow->screen_num());
       if (maxw && maxw < W && maxh && maxh < H) {
         libdecor_frame_unset_capabilities(wl_win->frame, LIBDECOR_ACTION_FULLSCREEN);
       } else {
@@ -737,7 +737,8 @@ static void surface_enter(void *data, struct wl_surface *wl_surface,
   while (e->next != &window->outputs) e = e->next; // move e to end of linked list
   wl_list_insert(e, &surface_output->link);
 //printf("%swindow %p enters screen id=%d length=%d\n", window->fl_win->parent()?"(sub)":"", window->fl_win, output->id, wl_list_length(&window->outputs));
-  if (list_was_empty && !window->fl_win->parent() && !window->fl_win->menu_window()) {
+  if (list_was_empty && !window->fl_win->parent() &&
+      !Fl_Window_Driver::to_menutitle(window->fl_win)) {
     change_scale(output, window, 0);
   }
 }