handle firing a diagram appearance event . concode_field_sep ArgoEventPump SINGLETON concode_elem_sep List<Pair> listeners concode_elem_sep Logger LOG concode_elem_sep ArgoEventListener listener concode_elem_sep int eventType concode_field_sep void doAddListener concode_elem_sep void handleFireGeneratorEvent concode_elem_sep void fireEvent concode_elem_sep void removeListener concode_elem_sep void removeListener concode_elem_sep void handleFireStatusEvent concode_elem_sep int getEventType concode_elem_sep void doRemoveListener concode_elem_sep void handleFireEvent concode_elem_sep int hashCode concode_elem_sep void handleFireProfileEvent concode_elem_sep boolean equals concode_elem_sep void handleFireHelpEvent concode_elem_sep void handleFireNotationEvent concode_elem_sep String toString concode_elem_sep ArgoEventPump getInstance concode_elem_sep void doFireEvent concode_elem_sep ArgoEventListener getListener concode_elem_sep void addListener concode_elem_sep void addListener