Swing/SortTabs のバックアップ(No.8)

class SortAction extends AbstractAction {
  public SortAction(String label, Icon icon) {
    super(label, icon);
  }
  @Override public void actionPerformed(ActionEvent e) {
    setSortedTab(tab, makeSortedVector(tab));
  }
  private Vector makeSortedVector(JTabbedPane t) {
    Vector l = new Vector();
    for (int i = 0; i < t.getTabCount(); i++) {
      l.addElement(new ComparableTab(t.getTitleAt(i), t.getComponentAt(i)));
    }
    Collections.sort(l);
    return l;
  }
  private void setSortedTab(final JTabbedPane t, final Vector l) {
    t.setVisible(false);
    t.removeAll();
    for (int i = 0; i < l.size(); i++) {
      ComparableTab c = (ComparableTab) l.get(i);
      t.addTab(c.title, c.comp);
    }
    t.setVisible(true);
  }
  class ComparableTab implements Comparable {
    final public String title;
    final public Component comp;
    public ComparableTab(String title, Component comp) {
      this.title = title;
      this.comp  = comp;
    }
    @Override public int compareTo(Object o) {
      return this.title.compareTo(((ComparableTab) o).title);
    }
  }
}