Set different color for one JTree node

[Elihu Smails]

I am trying to figure out how to set the color of a node in a JTree to be different than all the rest of the nodes in the tree. I have implemented a DefaultTreeCellRenderer and call setBackgroundNonSelectionColor(Color), but all the nodes get the same color and not just the one node I would expect to be changed.
Does anyone know how to do this, or know where I can get some sample code?

Thank you.

[Terry Ong]

TreeCellRenderer affects 'ALL' nodes.
You need to differentiate it by the node's user data to find out whether is it the node in question.

check out java tutorial for more details:
http://java.sun.com/docs/books/tutorial/uiswing/components/tree.html


Example of what you might want
------------------------------

class MyRenderer extends DefaultTreeCellRenderer {
    Color color1 = Color.PURPLE;
    public MyRenderer() {
      leafIcon = new ImageIcon(url);
    }
 
    public Component getTreeCellRendererComponent(
                        JTree tree,
                        Object value,
                        boolean sel,
                        boolean expanded,
                        boolean leaf,
                        int row,
                        boolean hasFocus) {
 
        super.getTreeCellRendererComponent(
                        tree, value, sel,
                        expanded, leaf, row,
                        hasFocus);
        if ( isTheNodeIWantDifferentColor(value) ) {
            setBackgroundNonSelectionColor(color1);
        } else {
            // ignore or do whatever 
        } 
 
        return this;
    }
}

[ December 18, 2006: Message edited by: Terry Ong ]