don't add the same menu to different menuitems/ optionmenus.

Tue Feb  3 15:09:55 1998  Tim Janik  <timj@gimp.org>

        * gtk/testgtk.c: don't add the same menu to different menuitems/
          optionmenus.

        * gtk/gtkmenuitem.h:
        * gtk/gtkmenuitem.c: new function gtk_menu_item_remove_submenu ro
          be consistent with optionmenu. use gtk_menu_attach_to_widget/
          gtk_menu_detach for setting/removing the submenu.
          invoke gtk_widget_destroy(submenu) in destructor to be consistent
          with other destructors.

        * gtk/gtkoptionmenu.h:
        * gtk/gtkoptionmenu.c: attach/detach to menu widget via
          gtk_menu_attach_to_widget/gtk_menu_detach.
          invoke gtk_widget_destroy(menu) in destructor to be consistent
          with other destructors.

BUGS

@@ -1,49 +0,0 @@
-From timj@gimp.org Sat Jan 24 19:15:22 1998
-Date: Sat, 24 Jan 1998 18:25:10 +0100 (CET)
-From: Tim Janik <timj@gimp.org>
-To: Peter Mattis <petm@xcf.berkeley.edu>
-Cc: Gtk+ Devils <gtkdev@gimp.org>
-Subject: widget destruction while in call
-
-hi peter and gtk+ devils ;)
-
-
-i've got the following problem, when double clicking on a list item
-it's window should be destroyed, because the selection is made.
-now this doesn't work 'cause the program is aborted with a
-BadWindow error (from X).
-
-this happens because the function that is connected to the lists
-button_press_event calls gtk_widget_destroy () on the main window.
-then the widget destruction is propagated through the tree until
-the list widget should be destroyed. but since the list widget is
-still GTK_IN_CALL (from the button_press_event) it isn't destroyed
-but only flagged as GTK_NEED_DESTROY. at this point the propagation
-stops, and nothing happends to the list widgets children.
-after the return of the button_press_event handler, the clicked
-list item is now selected/unselected (depends on the previous state).
-it therefore updates its GdkWindow (XWindow) by setting the new
-backgroundcolor (selected->blue/unselected->white). since it's
-parent XWindows are destroyed already the window which the list item
-wants to draw on is also destroyed. at this point the BadWindow error
-occours cause the XWindow handle has become invalid (the application
-already received a destroy notify).
-
-now, solutions might be:
-1) check for private->destroyed on *all* gdk call as it's done
-   it a lot of places already, or
-2) propagate a widget unrealize signal through the tree before
-   destroying a widget, or
-3) propagate GTK_NEED_DESTROY down the tree (not only flag the
-   list container), this would require gtk_object_destroy() to
-   return wether the object got actually destroyed or flagged
-   only. then prohibit gdk operations on widgets flagged as
-   GTK_NEED_DESTROY.
-
-i'm not sure what the best solution might be, but i tend to favour
-1) or 3).
-
-
----
-ciaoTJ
-

ChangeLog

@@ -1,7 +1,20 @@
 Tue Feb  3 15:09:55 1998  Tim Janik  <timj@gimp.org>
 
+	* gtk/testgtk.c: don't add the same menu to different menuitems/
+	  optionmenus.
+
+	* gtk/gtkmenuitem.h:
+	* gtk/gtkmenuitem.c: new function gtk_menu_item_remove_submenu ro
+	  be consistent with optionmenu. use gtk_menu_attach_to_widget/
+	  gtk_menu_detach for setting/removing the submenu.
+	  invoke gtk_widget_destroy(submenu) in destructor to be consistent
+	  with other destructors.
+
 	* gtk/gtkoptionmenu.h: 
 	* gtk/gtkoptionmenu.c: attach/detach to menu widget via
+	  gtk_menu_attach_to_widget/gtk_menu_detach.
+	  invoke gtk_widget_destroy(menu) in destructor to be consistent
+	  with other destructors.
 
 	* gtk/gtkmenu.h: 
 	* gtk/gtkmenu.c: new functions gtk_menu_attach_to_widget

ChangeLog.pre-2-0

@@ -1,7 +1,20 @@
 Tue Feb  3 15:09:55 1998  Tim Janik  <timj@gimp.org>
 
+	* gtk/testgtk.c: don't add the same menu to different menuitems/
+	  optionmenus.
+
+	* gtk/gtkmenuitem.h:
+	* gtk/gtkmenuitem.c: new function gtk_menu_item_remove_submenu ro
+	  be consistent with optionmenu. use gtk_menu_attach_to_widget/
+	  gtk_menu_detach for setting/removing the submenu.
+	  invoke gtk_widget_destroy(submenu) in destructor to be consistent
+	  with other destructors.
+
 	* gtk/gtkoptionmenu.h: 
 	* gtk/gtkoptionmenu.c: attach/detach to menu widget via
+	  gtk_menu_attach_to_widget/gtk_menu_detach.
+	  invoke gtk_widget_destroy(menu) in destructor to be consistent
+	  with other destructors.
 
 	* gtk/gtkmenu.h: 
 	* gtk/gtkmenu.c: new functions gtk_menu_attach_to_widget

ChangeLog.pre-2-10

@@ -1,7 +1,20 @@
 Tue Feb  3 15:09:55 1998  Tim Janik  <timj@gimp.org>
 
+	* gtk/testgtk.c: don't add the same menu to different menuitems/
+	  optionmenus.
+
+	* gtk/gtkmenuitem.h:
+	* gtk/gtkmenuitem.c: new function gtk_menu_item_remove_submenu ro
+	  be consistent with optionmenu. use gtk_menu_attach_to_widget/
+	  gtk_menu_detach for setting/removing the submenu.
+	  invoke gtk_widget_destroy(submenu) in destructor to be consistent
+	  with other destructors.
+
 	* gtk/gtkoptionmenu.h: 
 	* gtk/gtkoptionmenu.c: attach/detach to menu widget via
+	  gtk_menu_attach_to_widget/gtk_menu_detach.
+	  invoke gtk_widget_destroy(menu) in destructor to be consistent
+	  with other destructors.
 
 	* gtk/gtkmenu.h: 
 	* gtk/gtkmenu.c: new functions gtk_menu_attach_to_widget

ChangeLog.pre-2-2

@@ -1,7 +1,20 @@
 Tue Feb  3 15:09:55 1998  Tim Janik  <timj@gimp.org>
 
+	* gtk/testgtk.c: don't add the same menu to different menuitems/
+	  optionmenus.
+
+	* gtk/gtkmenuitem.h:
+	* gtk/gtkmenuitem.c: new function gtk_menu_item_remove_submenu ro
+	  be consistent with optionmenu. use gtk_menu_attach_to_widget/
+	  gtk_menu_detach for setting/removing the submenu.
+	  invoke gtk_widget_destroy(submenu) in destructor to be consistent
+	  with other destructors.
+
 	* gtk/gtkoptionmenu.h: 
 	* gtk/gtkoptionmenu.c: attach/detach to menu widget via
+	  gtk_menu_attach_to_widget/gtk_menu_detach.
+	  invoke gtk_widget_destroy(menu) in destructor to be consistent
+	  with other destructors.
 
 	* gtk/gtkmenu.h: 
 	* gtk/gtkmenu.c: new functions gtk_menu_attach_to_widget

ChangeLog.pre-2-4

@@ -1,7 +1,20 @@
 Tue Feb  3 15:09:55 1998  Tim Janik  <timj@gimp.org>
 
+	* gtk/testgtk.c: don't add the same menu to different menuitems/
+	  optionmenus.
+
+	* gtk/gtkmenuitem.h:
+	* gtk/gtkmenuitem.c: new function gtk_menu_item_remove_submenu ro
+	  be consistent with optionmenu. use gtk_menu_attach_to_widget/
+	  gtk_menu_detach for setting/removing the submenu.
+	  invoke gtk_widget_destroy(submenu) in destructor to be consistent
+	  with other destructors.
+
 	* gtk/gtkoptionmenu.h: 
 	* gtk/gtkoptionmenu.c: attach/detach to menu widget via
+	  gtk_menu_attach_to_widget/gtk_menu_detach.
+	  invoke gtk_widget_destroy(menu) in destructor to be consistent
+	  with other destructors.
 
 	* gtk/gtkmenu.h: 
 	* gtk/gtkmenu.c: new functions gtk_menu_attach_to_widget

ChangeLog.pre-2-6

@@ -1,7 +1,20 @@
 Tue Feb  3 15:09:55 1998  Tim Janik  <timj@gimp.org>
 
+	* gtk/testgtk.c: don't add the same menu to different menuitems/
+	  optionmenus.
+
+	* gtk/gtkmenuitem.h:
+	* gtk/gtkmenuitem.c: new function gtk_menu_item_remove_submenu ro
+	  be consistent with optionmenu. use gtk_menu_attach_to_widget/
+	  gtk_menu_detach for setting/removing the submenu.
+	  invoke gtk_widget_destroy(submenu) in destructor to be consistent
+	  with other destructors.
+
 	* gtk/gtkoptionmenu.h: 
 	* gtk/gtkoptionmenu.c: attach/detach to menu widget via
+	  gtk_menu_attach_to_widget/gtk_menu_detach.
+	  invoke gtk_widget_destroy(menu) in destructor to be consistent
+	  with other destructors.
 
 	* gtk/gtkmenu.h: 
 	* gtk/gtkmenu.c: new functions gtk_menu_attach_to_widget

ChangeLog.pre-2-8

@@ -1,7 +1,20 @@
 Tue Feb  3 15:09:55 1998  Tim Janik  <timj@gimp.org>
 
+	* gtk/testgtk.c: don't add the same menu to different menuitems/
+	  optionmenus.
+
+	* gtk/gtkmenuitem.h:
+	* gtk/gtkmenuitem.c: new function gtk_menu_item_remove_submenu ro
+	  be consistent with optionmenu. use gtk_menu_attach_to_widget/
+	  gtk_menu_detach for setting/removing the submenu.
+	  invoke gtk_widget_destroy(submenu) in destructor to be consistent
+	  with other destructors.
+
 	* gtk/gtkoptionmenu.h: 
 	* gtk/gtkoptionmenu.c: attach/detach to menu widget via
+	  gtk_menu_attach_to_widget/gtk_menu_detach.
+	  invoke gtk_widget_destroy(menu) in destructor to be consistent
+	  with other destructors.
 
 	* gtk/gtkmenu.h: 
 	* gtk/gtkmenu.c: new functions gtk_menu_attach_to_widget

TODO

@@ -42,9 +42,6 @@ BUGS
    the deactivation, but not the destruction of it's submenu.
    this is not a bug in the fileselection code but in the optionmenu
    code.
-                        
- * Look also at ./BUGS (i added it, because it describes some bugs in
-   a more specific way -timj).
    
 
 NEW FEATURES

gtk/gtkmenuitem.c

@@ -196,39 +196,58 @@ gtk_menu_item_destroy (GtkObject *object)
   menu_item = GTK_MENU_ITEM (object);
 
   if (menu_item->submenu)
-    {
+    gtk_widget_destroy (menu_item->submenu);
-      gtk_widget_destroy (menu_item->submenu);
-      gtk_widget_unref (menu_item->submenu);
-      menu_item->submenu = NULL;
-    }
 
   if (GTK_OBJECT_CLASS (parent_class)->destroy)
     (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
 }
 
+static void
+gtk_menu_item_detacher (GtkWidget     *widget,
+			GtkMenu       *menu)
+{
+  GtkMenuItem *menu_item;
+
+  g_return_if_fail (widget != NULL);
+  g_return_if_fail (GTK_IS_MENU_ITEM (widget));
+
+  menu_item = GTK_MENU_ITEM (widget);
+  g_return_if_fail (menu_item->submenu == (GtkWidget*) menu);
+
+  menu_item->submenu = NULL;
+}
+
 void
 gtk_menu_item_set_submenu (GtkMenuItem *menu_item,
 			   GtkWidget   *submenu)
 {
   g_return_if_fail (menu_item != NULL);
   g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
-
+  
   if (menu_item->submenu != submenu)
     {
-      if (menu_item->submenu)
+      gtk_menu_item_remove_submenu (menu_item);
-	{
+      
-	  g_return_if_fail (!GTK_WIDGET_VISIBLE (menu_item->submenu));
-	  gtk_widget_unref (menu_item->submenu);
-	}
       menu_item->submenu = submenu;
-      if (menu_item->submenu)
+      gtk_menu_attach_to_widget (GTK_MENU (submenu),
-	gtk_widget_ref (menu_item->submenu);
+				 GTK_WIDGET (menu_item),
-
+				 gtk_menu_item_detacher);
+      
       if (GTK_WIDGET (menu_item)->parent)
 	gtk_widget_queue_resize (GTK_WIDGET (menu_item));
     }
 }
 
+void
+gtk_menu_item_remove_submenu (GtkMenuItem         *menu_item)
+{
+  g_return_if_fail (menu_item != NULL);
+  g_return_if_fail (GTK_IS_MENU_ITEM (menu_item));
+      
+  if (menu_item->submenu)
+    gtk_menu_detach (GTK_MENU (menu_item->submenu));
+}
+
 void
 gtk_menu_item_set_placement (GtkMenuItem         *menu_item,
 			     GtkSubmenuPlacement  placement)

gtk/gtkmenuitem.h

@@ -76,6 +76,7 @@ GtkWidget* gtk_menu_item_new              (void);
 GtkWidget* gtk_menu_item_new_with_label   (const gchar         *label);
 void       gtk_menu_item_set_submenu      (GtkMenuItem         *menu_item,
 					   GtkWidget           *submenu);
+void       gtk_menu_item_remove_submenu   (GtkMenuItem         *menu_item);
 void       gtk_menu_item_set_placement    (GtkMenuItem         *menu_item,
 					   GtkSubmenuPlacement  placement);
 void       gtk_menu_item_accelerator_size (GtkMenuItem         *menu_item);

gtk/gtkoptionmenu.c

@@ -230,7 +230,7 @@ gtk_option_menu_destroy (GtkObject *object)
   option_menu = GTK_OPTION_MENU (object);
 
   if (option_menu->menu)
-    gtk_menu_detach (GTK_MENU (option_menu->menu));
+    gtk_widget_destroy (option_menu->menu);
 
   if (GTK_OBJECT_CLASS (parent_class)->destroy)
     (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
@@ -487,7 +487,6 @@ gtk_option_menu_remove_contents (GtkOptionMenu *option_menu)
       if (GTK_WIDGET (option_menu->menu_item)->state != GTK_BUTTON (option_menu)->child->state)
 	gtk_widget_set_state (GTK_BUTTON (option_menu)->child,
 			      GTK_WIDGET (option_menu->menu_item)->state);
-      /* GTK_WIDGET_UNSET_FLAGS (GTK_BUTTON (option_menu)->child, GTK_MAPPED | GTK_REALIZED); */
       gtk_widget_unrealize (GTK_BUTTON (option_menu)->child);
       gtk_widget_reparent (GTK_BUTTON (option_menu)->child, option_menu->menu_item);
       gtk_widget_unref (option_menu->menu_item);

gtk/testgtk.c

@@ -1111,7 +1111,6 @@ GtkWidget*
 create_menu (int depth)
 {
   GtkWidget *menu;
-  GtkWidget *submenu;
   GtkWidget *menuitem;
   GSList *group;
   char buf[32];
@@ -1121,7 +1120,6 @@ create_menu (int depth)
     return NULL;
 
   menu = gtk_menu_new ();
-  submenu = NULL;
   group = NULL;
 
   for (i = 0, j = 1; i < 5; i++, j++)
@@ -1134,12 +1132,7 @@ create_menu (int depth)
       gtk_menu_append (GTK_MENU (menu), menuitem);
       gtk_widget_show (menuitem);
 
-      if (depth > 0)
+      gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), create_menu (depth - 1));
-	{
-	  if (!submenu)
-	    submenu = create_menu (depth - 1);
-	  gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), submenu);
-	}
     }
 
   return menu;
@@ -1190,12 +1183,12 @@ create_menus ()
       gtk_widget_show (menuitem);
 
       menuitem = gtk_menu_item_new_with_label ("foo");
-      gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), menu);
+      gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), create_menu (3));
       gtk_menu_bar_append (GTK_MENU_BAR (menubar), menuitem);
       gtk_widget_show (menuitem);
 
       menuitem = gtk_menu_item_new_with_label ("bar");
-      gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), menu);
+      gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), create_menu (4));
       gtk_menu_item_right_justify (GTK_MENU_ITEM (menuitem));
       gtk_menu_bar_append (GTK_MENU_BAR (menubar), menuitem);
       gtk_widget_show (menuitem);

tests/testgtk.c

@@ -1111,7 +1111,6 @@ GtkWidget*
 create_menu (int depth)
 {
   GtkWidget *menu;
-  GtkWidget *submenu;
   GtkWidget *menuitem;
   GSList *group;
   char buf[32];
@@ -1121,7 +1120,6 @@ create_menu (int depth)
     return NULL;
 
   menu = gtk_menu_new ();
-  submenu = NULL;
   group = NULL;
 
   for (i = 0, j = 1; i < 5; i++, j++)
@@ -1134,12 +1132,7 @@ create_menu (int depth)
       gtk_menu_append (GTK_MENU (menu), menuitem);
       gtk_widget_show (menuitem);
 
-      if (depth > 0)
+      gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), create_menu (depth - 1));
-	{
-	  if (!submenu)
-	    submenu = create_menu (depth - 1);
-	  gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), submenu);
-	}
     }
 
   return menu;
@@ -1190,12 +1183,12 @@ create_menus ()
       gtk_widget_show (menuitem);
 
       menuitem = gtk_menu_item_new_with_label ("foo");
-      gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), menu);
+      gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), create_menu (3));
       gtk_menu_bar_append (GTK_MENU_BAR (menubar), menuitem);
       gtk_widget_show (menuitem);
 
       menuitem = gtk_menu_item_new_with_label ("bar");
-      gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), menu);
+      gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), create_menu (4));
       gtk_menu_item_right_justify (GTK_MENU_ITEM (menuitem));
       gtk_menu_bar_append (GTK_MENU_BAR (menubar), menuitem);
       gtk_widget_show (menuitem);