RE: itemfactory question

["Poletti, Don" <don poletti comverse-in com>]

Thanks,

That actually cleared its up, Your first example used one callback and used
the action to distinguish. This example shows using different callbacks.

I need to do both kinds. Unfortunately my action parameter is not working
correctly, If I track that down then I will have everything covered. Thanks 
for the example.

> -----Original Message-----
> From: Valéry Febvre [mailto:vfebvre@easter-eggs.com]
> Sent: Thursday, February 24, 2000 6:42 PM
> To: gtk-app-devel-list@redhat.com
> Subject: Re: itemfactory question
> 
> 
> > > For the prototype callback, I use always:
> > >
> > > void menu_callback(gpointer cb_data, guint action, GtkWidget * w)
> > > {
> > >   switch (action)
> > >     {
> > >     case ABOUT:
> > >       ...
> > >       break;
> > >     case EXIT:
> > >       gtk_main_quit();
> > >       break;
> > >       ...
> > >     }
> > > }
> > >
> > >
> > 
> > This example implies that there is one call back per menu, but the
> > itemFactoryEntry allows a callback to be specified on each item?
> > Are you saying I can only specify a call back on the menu?
> NO
> This function can be used for only one entry.
> 
> A little example:
> 
> enum
> {
>   ABOUT,
>   EXIT
> };
> 
> GtkWidget* create_window() {
>   GtkWidget *win;
>   GtkItemFactory *menu;
>   GtkItemFactoryEntry menu_entries[] =
>   {
>     "/About", NULL, menu_callback1, ABOUT, "<Item>",
>     "/Exit", NULL, menu_callback2, EXIT, "<Item>"
>   };
> 
>   menu = gtk_item_factory_new(GTK_TYPE_MENU, "<Main>", NULL);
>   gtk_item_factory_create_items(menu, 2, menu_entries, NULL);
> 
>   win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
>   gtk_object_set_data(GTK_OBJECT(win), "menu", menu);
>   gtk_widget_ref(win);
>   gtk_signal_connect (GTK_OBJECT (win), "destroy", GTK_SIGNAL_FUNC
> (gtk_main_quit), NULL);
>   gtk_signal_connect (GTK_OBJECT (win), "delete_event", 
> GTK_SIGNAL_FUNC
> (gtk_main_quit), NULL);
>   gtk_signal_connect (GTK_OBJECT (win), "button_press_event",
> 		      GTK_SIGNAL_FUNC (popup_menu), NULL);
>   return win;
> }
> 
> void menu_callback1(gpointer cb_data, guint action, GtkWidget * w)
> {
>         create_about();
> }
> 
> void menu_callback2(gpointer cb_data, guint action, GtkWidget * w)
> {
>         gtk_main_quit();
> }
> 
> static gint popup_menu(GtkWidget *w, GdkEventButton *e) 
> {
>   GdkModifierType modmask;
>   GtkItemFactory *menu;
> 
>   switch(e->button) {
>   case 1:
>     is_motion_ok = TRUE;
>     break;
>   case 3:
>     menu = gtk_object_get_data(GTK_OBJECT(w), "menu");
>     gtk_item_factory_popup(menu, (gint)(e->x_root), (gint)(e->y_root),
> 3, GDK_CURRENT_TIME);
>     break;
>   }
>   return 0;
> }
> 
> 
> I think that this example is bad because we don't used 
> the fourth ItemFactoryItem's attribut (the action)
> Here, we need 2 functions whereas we could use only one function
> with a 'switch'
> Perhaps, I don't understand your problem ???
> 
> 
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