ClutterLayoutManager::layout-changed

The signal is emitted each time a layout manager has been changed. Every ClutterActor using the manager instance as a layout manager should connect a handler to the ClutterLayoutManager::layout-changed signal and queue a relayout on themselves:

  static void layout_changed (ClutterLayoutManager *manager,
                              ClutterActor         *self)
  {
    clutter_actor_queue_relayout (self);
  }
  ...
    self->manager = g_object_ref_sink (manager);
    g_signal_connect (self->manager, "layout-changed",
                      G_CALLBACK (layout_changed),
                      self);

Sub-classes of ClutterLayoutManager that implement a layout that can be controlled or changed using parameters should emit the ::layout-changed signal whenever one of the parameters changes, by using clutter_layout_manager_layout_changed().