可以做成这样的combobox吗？

Question

我需要一个两列的combobox如下图：
     ----------------
    | 00001    下箭头|
     -------------------------------------
    | 00001          |  aaaaaaaaaaaaaaa   |
     -------------------------------------
    | 00002          |  bbbbbbbbbbbbbbb   |
     -------------------------------------
我已经做出来一个类似的如下：
     -----------------
    | 00001     下箭头|
     -----------------
    | 00001     | aaaa|
     -----------------
    | 00002     | bbbb|
     -----------------
因为不会设定下拉列表的各列的宽度，所以名称列就显示了一部分

Answer 1

图没画好，横分隔线短了点，我重写了一个Renderer，然后set了这个renderer
class TwoColumnsRenderer extends JPanel implements ListCellRenderer
    {
        private DefaultListCellRenderer column1 = new DefaultListCellRenderer();
        private DefaultListCellRenderer column2 = new DefaultListCellRenderer();        public TwoColumnsRenderer()
        {
            super(new GridLayout(1,0,3,0));
            add(column1);
            add(column2);
        }        public Component getListCellRendererComponent(JList list,
                                                       Object value,
                                                       int index,
                                                       boolean isSelected,
                                                       boolean cellHasFocus)
        {
            String array[] = (String[])value;
            column1.getListCellRendererComponent(list,array[0],index,isSelected,cellHasFocus);
            column2.getListCellRendererComponent(list,array[1],index,isSelected,cellHasFocus);
            return this;
        }
    }

Answer 2

大家看看能不能帮我改改这个renderer，
使它能达到我想要得效果，或者用别的方法，谢谢

Answer 3

重新画一下图
     -------------------------
    | 00001    下箭头|
     ----------------------------------------------
    | 00001            |  aaaaaaaaaaaaaaa   |
     ----------------------------------------------
    | 00002            |  bbbbbbbbbbbbbbb   |
     ----------------------------------------------