Adding 2 icons for a single node on a tree

Question

Hi,
I am trying to create a tree to represent objects. These objects can be of different types, and different states. I intend to use two icons for each node in the tree, one signifying the type and the other the status. I am a bit stuck though.
At present each node has a single icon, and uses a JLabel to add to the tree (with a custom renderer). Is it possible to manipulate the icons so instead of adding 2 16x16icons I can simplify it by adding a 32x16 icon?
Alternativley is it possible to customise JLabel (or something) to allow two icons to be added and alligned?
Cheers in advance
Chris

Answer 1

Just write your own composite Icon class:
public class CompositeIcon implements Icon
  private Icon icon1;
  private Icon icon2;
  public CompositeIcon(Icon icon1, Icon icon2)
    this.icon1 = icon1;
    this.icon2 = icon2;
  public int getIconHeight()
    return Math.max(icon1.getIconHeight(), icon2.getIconHeight());
  public int getIconWidth()
    return icon1.getIconWidth() + icon2.getIconWidth();
  public void paintIcon(Component c, Graphics g, int x, int y)
    icon1.paintIcon(c, g, x, y);
    icon2.paintIcon(c, g, x + icon1.getIconWidth, y);
}Hopefully a slightly more reusable solution. You could write all sorts of different layouts in this way.
Hope this helps.