Function signal_selection_changed

src/laybasic/laybasic/layEditable.h:689–692

* @brief Send a selection changed signal to all observers */

   *  @brief Send a selection changed signal to all observers
   */
  virtual void signal_selection_changed ()
  {
    selection_changed_event ();
  }

  /**
   *  @brief An event indicating that the transient selection has changed