@Override
  @Nullable
  protected JComponent createCenterPanel() {
    JPanel panel = new JPanel(new GridBagLayout());

    GridBagConstraints gc = new GridBagConstraints();
    gc.insets = JBUI.insets(2);
    gc.gridwidth = 1;
    gc.gridheight = 1;
    gc.gridx = 0;
    gc.gridy = 0;
    gc.anchor = GridBagConstraints.WEST;
    gc.fill = GridBagConstraints.NONE;
    gc.weightx = 0;
    gc.weighty = 0;

    panel.add(new JBLabel(message("label.export")), gc);
    gc.gridx += 1;
    gc.gridwidth = 2;
    gc.weightx = 1;
    gc.fill = GridBagConstraints.HORIZONTAL;
    JBLabel urlLabel = new JBLabel(myURL.toDecodedString());
    urlLabel.setFont(urlLabel.getFont().deriveFont(Font.BOLD));
    panel.add(urlLabel, gc);

    gc.gridy += 1;
    gc.gridwidth = 1;
    gc.gridx = 0;
    gc.weightx = 0;
    gc.fill = GridBagConstraints.NONE;
    panel.add(new JBLabel(message("label.destination")), gc);
    gc.gridx += 1;
    gc.gridwidth = 2;
    gc.weightx = 1;
    gc.fill = GridBagConstraints.HORIZONTAL;

    myPathField = new TextFieldWithBrowseButton(this);
    myPathField.setText(myFile.getAbsolutePath());
    myPathField.setEditable(false);
    panel.add(myPathField, gc);

    gc.gridy += 1;
    gc.gridx = 0;
    gc.weightx = 0;
    gc.gridwidth = 3;
    gc.fill = GridBagConstraints.NONE;

    // other options.
    final JBLabel depthLabel = new JBLabel(message("label.depth.text"));
    depthLabel.setToolTipText(message("label.depth.description"));
    panel.add(depthLabel, gc);
    ++gc.gridx;
    myDepth = new DepthCombo(false);
    panel.add(myDepth, gc);
    depthLabel.setLabelFor(myDepth);

    gc.gridx = 0;
    gc.gridy += 1;
    myForceCheckbox = new JBCheckBox(message("checkbox.replace.existing.files"));
    myForceCheckbox.setSelected(true);
    panel.add(myForceCheckbox, gc);
    gc.gridy += 1;
    myExternalsCheckbox = new JBCheckBox(message("checkbox.include.externals.locations"));
    myExternalsCheckbox.setSelected(true);
    panel.add(myExternalsCheckbox, gc);
    gc.gridy += 1;
    gc.gridwidth = 2;
    panel.add(new JBLabel(message("label.override.native.eols.with")), gc);
    gc.gridx += 2;
    gc.gridwidth = 1;
    panel.add(createLineSeparatorComboBox(), gc);
    gc.gridy += 1;
    gc.gridwidth = 3;
    gc.gridx = 0;
    gc.weightx = 1;
    gc.weighty = 1;
    gc.anchor = GridBagConstraints.SOUTH;
    gc.fill = GridBagConstraints.HORIZONTAL;
    panel.add(new JSeparator(), gc);
    return panel;
  }
@Override
  @Nullable
  protected JComponent createCenterPanel()