public @NotNull JComponent createCenterPanel() {
    String panelConstraints = "flowy, ins 0 0 0 10, fill";
    MigLayout migLayout = new MigLayout(panelConstraints);
    JPanel contentPane = new JPanel(migLayout);

    myPullCheckBox = new JBCheckBox(HgBundle.message("action.hg4idea.pull.p"), true);
    myPullCheckBox.setToolTipText(HgBundle.message("action.hg4idea.pull.from.default.remote"));
    myPullCheckBox.setSelected(true);

    myOnlyUpdateButton = new JRadioButton(HgBundle.message("action.hg4idea.pull.only.update"), true);
    myOnlyUpdateButton.setToolTipText(HgBundle.message("action.hg4idea.pull.update.to.head"));

    myMergeRadioButton = new JRadioButton(HgBundle.message("action.hg4idea.pull.update.merge"), false);
    myMergeRadioButton.setToolTipText(HgBundle.message("action.hg4idea.pull.merge.if.in.extra"));
    myMergeRadioButton.addItemListener(new ItemListener() {
      @Override
      public void itemStateChanged(ItemEvent e) {
        updateEnabledStates();
      }
    });

    myCommitAfterMergeCheckBox = new JCheckBox(HgBundle.message("action.hg4idea.pull.commit.after.merge"), false);
    myCommitAfterMergeCheckBox.setToolTipText(HgBundle.message("action.hg4idea.pull.commit.automatically"));
    myCommitAfterMergeCheckBox.setSelected(false);

    myRebaseRadioButton = new JRadioButton(HgBundle.message("action.hg4idea.pull.rebase"), false);
    myRebaseRadioButton.setToolTipText(HgBundle.message("action.hg4idea.pull.rebase.tooltip"));

    contentPane.add(myPullCheckBox, "left");
    JPanel strategyPanel = new JPanel(new MigLayout(panelConstraints));
    strategyPanel.setBorder(IdeBorderFactory.createTitledBorder(HgBundle.message("action.hg4idea.pull.update.strategy"), false));
    strategyPanel.add(myOnlyUpdateButton, "left");
    strategyPanel.add(myMergeRadioButton, "left");
    strategyPanel.add(myCommitAfterMergeCheckBox, "gapx 5%");
    strategyPanel.add(myRebaseRadioButton, "left");
    contentPane.add(strategyPanel);
    ButtonGroup group = new ButtonGroup();
    group.add(myOnlyUpdateButton);
    group.add(myRebaseRadioButton);
    group.add(myMergeRadioButton);
    updateEnabledStates();
    return contentPane;
  }
public @NotNull JComponent createCenterPanel()