/** Initializes this dialog. */
  private void initDialog() {
    setMinimumSize(new Dimension(640, 480));

    final JComponent settingsPane = createSettingsPane();
    final JComponent previewPane = createPreviewPane();

    final JPanel contentPane = new JPanel(new GridBagLayout());
    contentPane.add(
        settingsPane,
        new GridBagConstraints(
            0,
            0,
            1,
            1,
            0.0,
            0.0,
            GridBagConstraints.NORTH,
            GridBagConstraints.NONE,
            new Insets(2, 0, 2, 0),
            0,
            0));
    contentPane.add(
        previewPane,
        new GridBagConstraints(
            1,
            0,
            1,
            1,
            1.0,
            1.0,
            GridBagConstraints.NORTH,
            GridBagConstraints.BOTH,
            new Insets(2, 0, 2, 0),
            0,
            0));

    final JButton runAnalysisButton = ToolUtils.createRunAnalysisButton(this);
    this.runAnalysisAction = (RestorableAction) runAnalysisButton.getAction();

    final JButton exportButton = ToolUtils.createExportButton(this);
    this.exportAction = exportButton.getAction();
    this.exportAction.setEnabled(false);

    final JButton closeButton = ToolUtils.createCloseButton();
    this.closeAction = closeButton.getAction();

    final JComponent buttons =
        SwingComponentUtils.createButtonPane(runAnalysisButton, exportButton, closeButton);

    SwingComponentUtils.setupWindowContentPane(this, contentPane, buttons, runAnalysisButton);
  }