private JPanel createNamePanel() {
    final GridBag c =
        new GridBag().setDefaultAnchor(GridBagConstraints.WEST).setDefaultInsets(1, 1, 1, 1);
    final JPanel namePanel = new JPanel(new GridBagLayout());

    final JLabel typeLabel = new JLabel(UIUtil.replaceMnemonicAmpersand("&Type:"));
    c.nextLine().next().weightx(0).fillCellNone();
    namePanel.add(typeLabel, c);

    myTypeComboBox =
        createTypeComboBox(
            GroovyIntroduceParameterUtil.findVar(myInfo),
            GroovyIntroduceParameterUtil.findExpr(myInfo),
            findStringPart());
    c.next().weightx(1).fillCellHorizontally();
    namePanel.add(myTypeComboBox, c);
    typeLabel.setLabelFor(myTypeComboBox);

    final JLabel nameLabel = new JLabel(UIUtil.replaceMnemonicAmpersand("&Name:"));
    c.nextLine().next().weightx(0).fillCellNone();
    namePanel.add(nameLabel, c);

    myNameSuggestionsField = createNameField(GroovyIntroduceParameterUtil.findVar(myInfo));
    c.next().weightx(1).fillCellHorizontally();
    namePanel.add(myNameSuggestionsField, c);
    nameLabel.setLabelFor(myNameSuggestionsField);

    GrTypeComboBox.registerUpDownHint(myNameSuggestionsField, myTypeComboBox);

    return namePanel;
  }
  @NotNull
  public LinkedHashSet<String> suggestNames() {
    GrVariable var = GroovyIntroduceParameterUtil.findVar(myInfo);
    GrExpression expr = GroovyIntroduceParameterUtil.findExpr(myInfo);
    StringPartInfo stringPart = findStringPart();

    return GroovyIntroduceParameterUtil.suggestNames(
        var, expr, stringPart, myInfo.getToReplaceIn(), myProject);
  }
  @Override
  public void doOKAction() {
    saveSettings();

    super.doOKAction();

    final GrParametersOwner toReplaceIn = myInfo.getToReplaceIn();

    final GrExpression expr = GroovyIntroduceParameterUtil.findExpr(myInfo);
    final GrVariable var = GroovyIntroduceParameterUtil.findVar(myInfo);
    final StringPartInfo stringPart = findStringPart();

    if (myTypeComboBox.isClosureSelected() || expr == null && var == null && stringPart == null) {
      GrIntroduceParameterSettings settings =
          new ExtractClosureHelperImpl(
              myInfo,
              getEnteredName(),
              myDeclareFinalCheckBox.isSelected(),
              getParametersToRemove(),
              myDelegateViaOverloadingMethodCheckBox.isSelected(),
              getReplaceFieldsWithGetter(),
              myForceReturnCheckBox.isSelected(),
              myTypeComboBox.getSelectedType() == null);
      if (toReplaceIn instanceof GrMethod) {
        invokeRefactoring(new ExtractClosureFromMethodProcessor(settings));
      } else {
        invokeRefactoring(new ExtractClosureFromClosureProcessor(settings));
      }
    } else {

      GrIntroduceParameterSettings settings =
          new GrIntroduceExpressionSettingsImpl(
              myInfo,
              getEnteredName(),
              myDeclareFinalCheckBox.isSelected(),
              getParametersToRemove(),
              myDelegateViaOverloadingMethodCheckBox.isSelected(),
              getReplaceFieldsWithGetter(),
              expr,
              var,
              myTypeComboBox.getSelectedType(),
              myForceReturnCheckBox.isSelected());
      if (toReplaceIn instanceof GrMethod) {
        invokeRefactoring(new GrIntroduceParameterProcessor(settings));
      } else {
        invokeRefactoring(new GrIntroduceClosureParameterProcessor(settings));
      }
    }
  }
  public GrIntroduceParameterDialog(IntroduceParameterInfo info) {
    super(info.getProject(), true);
    myInfo = info;
    myProject = info.getProject();
    myCanIntroduceSimpleParameter =
        GroovyIntroduceParameterUtil.findExpr(myInfo) != null
            || GroovyIntroduceParameterUtil.findVar(myInfo) != null
            || findStringPart() != null;

    TObjectIntHashMap<GrParameter> parametersToRemove =
        GroovyIntroduceParameterUtil.findParametersToRemove(info);
    toRemoveCBs = new TObjectIntHashMap<JCheckBox>(parametersToRemove.size());
    for (Object p : parametersToRemove.keys()) {
      JCheckBox cb =
          new JCheckBox(
              GroovyRefactoringBundle.message(
                  "remove.parameter.0.no.longer.used", ((GrParameter) p).getName()));
      toRemoveCBs.put(cb, parametersToRemove.get((GrParameter) p));
      cb.setSelected(true);
    }

    init();
  }