gtk/demos/gtk-demo/item_factory.c

/* Item Factory
 *
 * The GtkItemFactory object allows the easy creation of menus
 * from an array of descriptions of menu items.
 */

#include <gtk/gtk.h>

static void
gtk_ifactory_cb (gpointer             callback_data,
		 guint                callback_action,
		 GtkWidget           *widget)
{
  g_message ("ItemFactory: activated \"%s\"", gtk_item_factory_path_from_widget (widget));
}

static GtkItemFactoryEntry menu_items[] =
{
  { "/_File",            NULL,         0,                     0, "<Branch>" },
  { "/File/tearoff1",    NULL,         gtk_ifactory_cb,       0, "<Tearoff>" },
  { "/File/_New",        "<control>N", gtk_ifactory_cb,       0 },
  { "/File/_Open",       "<control>O", gtk_ifactory_cb,       0 },
  { "/File/_Save",       "<control>S", gtk_ifactory_cb,       0 },
  { "/File/Save _As...", NULL,         gtk_ifactory_cb,       0 },
  { "/File/sep1",        NULL,         gtk_ifactory_cb,       0, "<Separator>" },
  { "/File/_Quit",       "<control>Q", gtk_ifactory_cb,       0 },

  { "/_Preferences",     		NULL, 0,               0, "<Branch>" },
  { "/_Preferences/_Color", 		NULL, 0,               0, "<Branch>" },
  { "/_Preferences/Color/_Red",      	NULL, gtk_ifactory_cb, 0, "<RadioItem>" },
  { "/_Preferences/Color/_Green",   	NULL, gtk_ifactory_cb, 0, "/Preferences/Color/Red" },
  { "/_Preferences/Color/_Blue",        NULL, gtk_ifactory_cb, 0, "/Preferences/Color/Red" },
  { "/_Preferences/_Shape", 		NULL, 0,               0, "<Branch>" },
  { "/_Preferences/Shape/_Square",      NULL, gtk_ifactory_cb, 0, "<RadioItem>" },
  { "/_Preferences/Shape/_Rectangle",   NULL, gtk_ifactory_cb, 0, "/Preferences/Shape/Square" },
  { "/_Preferences/Shape/_Oval",        NULL, gtk_ifactory_cb, 0, "/Preferences/Shape/Rectangle" },

  { "/_Help",            NULL,         0,                     0, "<LastBranch>" },
  { "/Help/_About",      NULL,         gtk_ifactory_cb,       0 },
};

static int nmenu_items = sizeof (menu_items) / sizeof (menu_items[0]);

GtkWidget *
do_item_factory (void)
{
  static GtkWidget *window = NULL;
  
  if (!window)
    {
      GtkWidget *box1;
      GtkWidget *box2;
      GtkWidget *separator;
      GtkWidget *label;
      GtkWidget *button;
      GtkAccelGroup *accel_group;
      GtkItemFactory *item_factory;
      
      window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
      
      gtk_signal_connect (GTK_OBJECT (window), "destroy",
			  GTK_SIGNAL_FUNC(gtk_widget_destroyed),
			  &window);
      gtk_signal_connect (GTK_OBJECT (window), "delete-event",
			  GTK_SIGNAL_FUNC (gtk_true),
			  NULL);
      
      accel_group = gtk_accel_group_new ();
      item_factory = gtk_item_factory_new (GTK_TYPE_MENU_BAR, "<main>", accel_group);
      gtk_object_set_data_full (GTK_OBJECT (window),
				"<main>",
				item_factory,
				(GtkDestroyNotify) gtk_object_unref);
      gtk_accel_group_attach (accel_group, GTK_OBJECT (window));
      gtk_window_set_title (GTK_WINDOW (window), "Item Factory");
      gtk_container_set_border_width (GTK_CONTAINER (window), 0);
      gtk_item_factory_create_items (item_factory, nmenu_items, menu_items, NULL);

      /* preselect /Preferences/Shape/Oval over the other radios
       */
      gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (gtk_item_factory_get_item (item_factory,
										      "/Preferences/Shape/Oval")),
				      TRUE);

      box1 = gtk_vbox_new (FALSE, 0);
      gtk_container_add (GTK_CONTAINER (window), box1);
      
      gtk_box_pack_start (GTK_BOX (box1),
			  gtk_item_factory_get_widget (item_factory, "<main>"),
			  FALSE, FALSE, 0);

      label = gtk_label_new ("Type\n<alt>\nto start");
      gtk_widget_set_usize (label, 200, 200);
      gtk_misc_set_alignment (GTK_MISC (label), 0.5, 0.5);
      gtk_box_pack_start (GTK_BOX (box1), label, TRUE, TRUE, 0);


      separator = gtk_hseparator_new ();
      gtk_box_pack_start (GTK_BOX (box1), separator, FALSE, TRUE, 0);


      box2 = gtk_vbox_new (FALSE, 10);
      gtk_container_set_border_width (GTK_CONTAINER (box2), 10);
      gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, TRUE, 0);

      button = gtk_button_new_with_label ("close");
      gtk_signal_connect_object (GTK_OBJECT (button), "clicked",
				 GTK_SIGNAL_FUNC(gtk_widget_destroy),
				 GTK_OBJECT (window));
      gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);
      GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
      gtk_widget_grab_default (button);

      gtk_widget_show_all (window);
    }
  else
    {
      gtk_widget_destroy (window);
      window = NULL;
    }

  return window;
}