gtk/demos/gtk-demo/builder.c

/* Builder
 *
 * Demonstrates a traditional interface, loaded from a XML description,
 * and shows how to connect actions to the menu items and toolbar buttons.
 */

#include <gtk/gtk.h>

static void
quit_activate (GSimpleAction *action,
               GVariant      *parameter,
               gpointer       user_data)
{
  GtkWidget *window = user_data;

  gtk_window_destroy (GTK_WINDOW (window));
}

static void
about_activate (GSimpleAction *action,
                GVariant      *parameter,
                gpointer       user_data)
{
  GtkWidget *window = user_data;
  GtkWidget *about_dlg;

  about_dlg = GTK_WIDGET (g_object_get_data (G_OBJECT (window), "about"));
  gtk_window_present (GTK_WINDOW (about_dlg));
}

static void
remove_timeout (gpointer data)
{
  guint id = GPOINTER_TO_UINT (data);

  g_source_remove (id);
}

static gboolean
pop_status (gpointer data)
{
  gtk_statusbar_pop (GTK_STATUSBAR (data), 0);
  g_object_set_data (G_OBJECT (data), "timeout", NULL);
  return G_SOURCE_REMOVE;
}

static void
status_message (GtkStatusbar *status,
                const char   *text)
{
  guint id;

  gtk_statusbar_push (GTK_STATUSBAR (status), 0, text);
  id = g_timeout_add (5000, pop_status, status);

  g_object_set_data_full (G_OBJECT (status), "timeout", GUINT_TO_POINTER (id), remove_timeout);
}

static void
help_activate (GSimpleAction *action,
               GVariant      *parameter,
               gpointer       user_data)
{
  GtkWidget *status;

  status = GTK_WIDGET (g_object_get_data (G_OBJECT (user_data), "status"));
  status_message (GTK_STATUSBAR (status), "Help not available");
}

static void
not_implemented (GSimpleAction *action,
                 GVariant      *parameter,
                 gpointer       user_data)
{
  GtkWidget *status;
  char *text;

  text = g_strdup_printf ("Action “%s” not implemented", g_action_get_name (G_ACTION (action)));
  status = GTK_WIDGET (g_object_get_data (G_OBJECT (user_data), "status"));
  status_message (GTK_STATUSBAR (status), text);
  g_free (text);
}

static GActionEntry win_entries[] = {
  { "new", not_implemented, NULL, NULL, NULL },
  { "open", not_implemented, NULL, NULL, NULL },
  { "save", not_implemented, NULL, NULL, NULL },
  { "save-as", not_implemented, NULL, NULL, NULL },
  { "copy", not_implemented, NULL, NULL, NULL },
  { "cut", not_implemented, NULL, NULL, NULL },
  { "paste", not_implemented, NULL, NULL, NULL },
  { "quit", quit_activate, NULL, NULL, NULL },
  { "about", about_activate, NULL, NULL, NULL },
  { "help", help_activate, NULL, NULL, NULL }
};

GtkWidget *
do_builder (GtkWidget *do_widget)
{
  static GtkWidget *window = NULL;
  GActionGroup *actions;

  if (!window)
    {
      GtkBuilder *builder;
      GtkWidget *about;
      GtkWidget *status;

      builder = gtk_builder_new_from_resource ("/builder/demo.ui");

      window = GTK_WIDGET (gtk_builder_get_object (builder, "window1"));
      gtk_window_set_display (GTK_WINDOW (window),
                              gtk_widget_get_display (do_widget));
      g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
      actions = (GActionGroup*)g_simple_action_group_new ();
      g_action_map_add_action_entries (G_ACTION_MAP (actions),
                                       win_entries, G_N_ELEMENTS (win_entries),
                                       window);
      gtk_widget_insert_action_group (window, "win", actions);

      about = GTK_WIDGET (gtk_builder_get_object (builder, "aboutdialog1"));
      gtk_window_set_transient_for (GTK_WINDOW (about), GTK_WINDOW (window));
      gtk_window_set_hide_on_close (GTK_WINDOW (about), TRUE);
      g_signal_connect (about, "response", G_CALLBACK (gtk_widget_hide), NULL);
      g_object_set_data_full (G_OBJECT (window), "about",
                              about, (GDestroyNotify)gtk_window_destroy);

      status = GTK_WIDGET (gtk_builder_get_object (builder, "statusbar1"));
      g_object_set_data (G_OBJECT (window), "status", status);

      g_object_unref (builder);
    }

  if (!gtk_widget_get_visible (window))
    gtk_widget_show (window);
  else
    gtk_window_destroy (GTK_WINDOW (window));

  return window;
}