Swing/SpinnerEditorAlignment のバックアップ(No.1)

// UIManager.put("Spinner.editorAlignment", SwingConstants.CENTER);
// System.out.println(UIManager.get("Spinner.editorAlignment"));

JRadioButton r1 = new JRadioButton("LEADING");
JRadioButton r2 = new JRadioButton("CENTER");
JRadioButton r3 = new JRadioButton("TRAILING");
ItemListener il = e -> {
  int alignment;
  if (e.getItemSelectable() == r1) {
    alignment = SwingConstants.LEADING;
  } else if (e.getItemSelectable() == r2) {
    alignment = SwingConstants.CENTER;
  } else {
    alignment = SwingConstants.TRAILING;
  }
  UIManager.put("Spinner.editorAlignment", alignment);
  SwingUtilities.updateComponentTreeUI(this);
};
ButtonGroup bg = new ButtonGroup();
Box box = Box.createHorizontalBox();
for (JRadioButton r: Arrays.asList(r1, r2, r3)) {
   r.addItemListener(il);
   bg.add(r);
   box.add(r);
}

List<String> weeks = Arrays.asList("Sun", "Mon", "Tue", "Wed", "Thu", "Sat");
JSpinner spinner0 = new JSpinner(new SpinnerListModel(weeks));

Date date = new Date();
JSpinner spinner1 = new JSpinner(new SpinnerDateModel(date, date, null, Calendar.DAY_OF_MONTH));
spinner1.setEditor(new JSpinner.DateEditor(spinner1, "yyyy/MM/dd"));
// JTextField field = ((JSpinner.DefaultEditor) spinner1.getEditor()).getTextField();
// field.setHorizontalAlignment(SwingConstants.TRAILING);

JSpinner spinner2 = new JSpinner(new SpinnerNumberModel(5, 0, 10, 1));
// JTextField text = ((JSpinner.DefaultEditor) spinner2.getEditor()).getTextField();
// text.setHorizontalAlignment(SwingConstants.LEADING);