JCombobox text alignment multiple?

Question

Hi all,
i have a JComboBox that i dynamically update when the user adds a new item to a JTree
The JCombobox displays the parent name + the number of children of that node:
Node1(4)
Node2(5)
Node3(2)
Node4(0)
but because the Node name has a variable length, it looks like this:
SuperNode(4)
Node(5)
node(5)
n(0)
is it possible to align the number to the right of the jcombobox? (like with tabs?)
thanks in advance,
Grad_

Answer 1

Use a renderer that returns a JPanel with layout set to BoxLayout and two labels with Box.createHorizontalGlue() in between.
This could also be achieved with other layout managers.
      combo.setRenderer(new DefaultListCellRenderer() {
         public Component getListCellRendererComponent(JList list, Object value,
               int index, boolean isSelected, boolean cellHasFocus) {
            JLabel textLabel = new JLabel(value.toString());
            JLabel countLabel = new JLabel(((MyNode) value).getCount());
            JPanel panel = new JPanel();
            panel.setLayout(new BoxLayout(panel, BoxLayout.X_AXIS));
            panel.add(textLabel);
            panel.add(Box.createHorizontalGlue());
            panel.add(countLabel);
            return panel;
      });where NyNode isclass MyNode {
   String text;
   int count;
   public MyNode(String pText, int pCount) {
      text = pText;
      count = pCount;
   public String toString() {
      return text;
   public String getCount() {
      return "" + count;
}and combo is poulated with an array of MyNode objects.
db