{
this.listenerList = new EventListenerList();
this.dataAttributeContext = new DefaultDataAttributeContext();
setLayout(new BorderLayout());
ellipsisButton = new EllipsisButton("...");
ellipsisButton.setDefaultCapable(false);
ellipsisButton.setMargin(new Insets(0, 0, 0, 0));
ellipsisButton.addActionListener(new OpenFormulaEditorAction());
changeEventGenerator = new ValueChangeEventGenerator();