Re: Fwd: Tooltips can't be set for menubar's top level menuitem.

["DC A" <adc4444 hotmail com>]

Thanks for your reply.  The book that I mentioned earlier claims that the 
toplevel menuitem with submenu should show the tooltips. So I'm guessing is 
this behavior only works for gtk 1.2? Any ideas?

> From: riboaz xs4all nl
> To: gtk-list gnome org
> Subject: Re: Fwd: Tooltips can't be set for menubar's top level menuitem.
> Date: Fri, 4 Nov 2005 11:58:46 +0100 (CET)
>
> hi,
>
> had a look at your situation and can report at least why it's happening:
>
> - the reason that the tooltip is not working in your example is because a
> submenu has been added.
>
> if you comment out the gtk_menu_item_set_submenu() (and corresponding
> gtk_menu_append() calls), you see that the tooltip works on the "File"
> menu item.  include the gtk_menu_item_set_submenu() call again and it
> stops working.
>
> my conclusion would be, then, that adding a submenu to a menu file item
> changes its characteristics such that tooltips are no longer renderable.
> though a more in-depth explanation will need to come from someone more
> closely involved in gtk+ widget design, not me.
>
> whether this is intended behaviour, i also cannot comment.  maybe someone
> else would like to?
>
> cheers,
>
> richard
>
> >
> > Hi,
> > I'm reading a book Sam's teach yourself Gtk+ programming and trying to 
> set
> > tooltips for menubar's toplevel menuitem which in this case is 
> file_item.
> > the book states that I can set tooltips with gtk_tooltips_set_tip()
> > function
> > without the use of GtkTipsQuery. I did exactly what it said and it works
> > only for menuitem that are enlisted in submenu not for the toplevel
> > menuitem
> > in menuabar. I checked the api and it said "Tooltips can only be set on
> > widgets which have their own X window and receive enter and leave 
> events.
> > To
> > check if a widget has its own window use GTK_WIDGET_NO_WINDOW()." I 
> tested
> > whether file_item(toplevel menuitem) and exit_item(Submenu's menuitem)
> > have
> > their own window with GTK_WINDOW_NO_WINDOW macro and it tested TRUE for
> > both
> > of them and still tooltips can be set only for submenu's menuitem and 
> not
> > for menubar's top level menuitem. I'm bit confused here. Anyone know 
> what
> > should I do or what am I doin' wrong? Thanks.
> >
> >
> > Note: The code I used is listed below.
> >
> >
> >
> >
> >
> >
> >
> >
> > #include <gtk/gtk.h>
> >
> > #define NONHOMOGENEOUS FALSE
> > #define NO_SPACING 0
> >
> >
> >
> >
> > gboolean delete_handler(GtkWidget *widget, GdkEvent *event, gpointer
> > user_data)
> > {
> >     return FALSE;
> > }
> >
> >
> > void destroy_handler (GtkObject *object, gpointer user_data)
> > {
> >     gtk_main_quit();
> > }
> >
> >
> > int main(int argc, char *argv[])
> > {
> >     GtkWidget *top_window, *vbox, *label;
> >     GtkWidget *menu_bar, *file_item, *file_menu, *separator, *exit_item;
> >
> >     GtkTooltips *tooltips;
> >
> >     /* 1)Initialize the environement*/
> >     gtk_init(&argc, &argv);
> >
> >
> >
> >     /* 2)Create widgets and show attributes*/
> >     top_window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
> >     vbox = gtk_vbox_new(NONHOMOGENEOUS, NO_SPACING);
> >     label = gtk_label_new("GTK+ is fun.");
> >
> >     menu_bar = gtk_menu_bar_new();
> >     file_item = gtk_menu_item_new_with_label("File");
> >     file_menu = gtk_menu_new();
> >     separator = gtk_menu_item_new();
> >     exit_item = gtk_menu_item_new_with_label("Exit");
> >
> >     tooltips = gtk_tooltips_new();
> >
> >
> >
> >
> >     /* 2b)Show attributes */
> >     gtk_window_set_title(GTK_WINDOW (top_window), "Test");
> >     gtk_widget_set_size_request(label, 200, 200);
> >
> >
> >     /* 3)Register siganls */
> >     g_signal_connect(G_OBJECT(top_window), "delete-event",
> > G_CALLBACK(delete_handler), NULL);
> >     g_signal_connect(G_OBJECT(top_window), "destroy",
> > G_CALLBACK(destroy_handler), NULL);
> >     g_signal_connect(G_OBJECT(exit_item), "activate",
> > G_CALLBACK(destroy_handler), NULL);
> >
> >
> >
> >
> >
> >     /* 4)Create instance hierarchy*/
> >     gtk_box_pack_start_defaults(GTK_BOX(vbox), menu_bar);
> >     gtk_box_pack_start_defaults(GTK_BOX(vbox), label);
> >
> >
> >     gtk_menu_bar_append(GTK_MENU_BAR(menu_bar), file_item);
> >
> >     gtk_menu_item_set_submenu(GTK_MENU_ITEM(file_item), file_menu);
> >
> >     gtk_menu_append(GTK_MENU(file_menu), separator);
> >     gtk_menu_append(GTK_MENU(file_menu), exit_item);
> >     gtk_container_add(GTK_CONTAINER(top_window), vbox);
> >
> >
> >
> >     /*5)Show widgets*/
> >     gtk_widget_show(file_item);
> >     gtk_widget_show(separator);
> >     gtk_widget_show(exit_item);
> >
> >     gtk_widget_show(menu_bar);
> >     gtk_widget_show(label);
> >     gtk_widget_show(vbox);
> >     gtk_widget_show(top_window);
> >
> >     gtk_tooltips_set_tip(GTK_TOOLTIPS(tooltips), file_item, 
> "Filetoshow",
> > NULL);
> >     gtk_tooltips_set_tip(GTK_TOOLTIPS(tooltips), exit_item, "Exit", 
> NULL);
> >     gtk_tooltips_set_tip(GTK_TOOLTIPS(tooltips), label, "Exit", NULL);
> >
> >
> >     /*6)Process signals*/
> >     gtk_main();
> >
> >
> >     /*7)Quitting*/
> >     return 0;
> > }
> >
> >
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