errorIcon = new ImageIcon(getClass().getResource("/org/pentaho/openformula/ui/images/error.gif")); // NON-NLS
errorIconHolder = new JLabel();
errorTextHolder = new JLabel();
errorTextHolder.setName("errorTextHolder");
selectFieldsAction = new SelectFieldAction(this, new FieldSelectorListener(), this);
final JSplitPane functionPanel = new JSplitPane(JSplitPane.VERTICAL_SPLIT);
functionPanel.setTopComponent(functionParameterEditor.getEditorComponent());
functionPanel.setBottomComponent(buildFormulaTextPanel());
functionPanel.setBorder(new EmptyBorder(0, 0, 0, 0));