Re: gtkcombobox with self internal code to the options

[Tadej Borovšak <tadeboro gmail com>]

Hello.

If I understand you correctly, you want to store name and ID of your
field inside combo box and retrieve it when needed. If this is true,
have a look at this snippet of code that demonstrates how to do this:

-------
#include <gtk/gtk.h>

enum
{
  COL_NAME,
  COL_ID,
  NO_COLS
};

static void
cb_changed (GtkComboBox *combo)
{
  GtkTreeIter   iter;
  GtkTreeModel *model;
  gint          id;
  gchar        *name;

  gtk_combo_box_get_active_iter (combo, &iter);
  model = gtk_combo_box_get_model (combo);
  gtk_tree_model_get (model, &iter, COL_NAME, &name, COL_ID, &id, -1);

  g_print ("Active selection: %s (id: %d)\n", name, id);
  g_free (name);
}

int
main (int    argc,
      char **argv)
{
  GtkWidget       *window,
		  *combo;
  GtkCellRenderer *cell;
  GtkListStore    *store;
  gint             i;

  gtk_init (&argc, &argv);

  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
  g_signal_connect (window, "destroy", gtk_main_quit, NULL);

  store = gtk_list_store_new (NO_COLS, G_TYPE_STRING, G_TYPE_INT);
  for (i = 0; i < 10; i++)
    {
      GtkTreeIter iter;
      gchar       name[] = "Item  ";

      name[5] = '0' + i;
      gtk_list_store_append (store, &iter);
      gtk_list_store_set (store, &iter, COL_NAME, name,
					COL_ID, g_random_int (),
					-1);
    }

  combo = gtk_combo_box_new_with_model (GTK_TREE_MODEL (store));
  g_signal_connect (combo, "changed", G_CALLBACK (cb_changed), NULL);
  gtk_container_add (GTK_CONTAINER (window), combo);

  cell = gtk_cell_renderer_text_new ();
  gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combo), cell, TRUE);
  gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (combo), cell,
				 "text", COL_NAME);

  gtk_widget_show_all (window);

  gtk_main();

  return 0;
}
----------

Tadej

-- 
Tadej Borovšak
tadeboro.blogspot.com
tadeboro gmail com
tadej borovsak gmail com