TreeCellRenderer rendering JPanel leafs

Question

I am attempting to create a jTree configuration editor which holds roots nodes that contain a label describing what they are editing. When the user clicks on the expand icon on the tree node I would like a JPanel to display. While the JPanel is working properly and displaying I am having some major problems with resizing to show the entire frame on the leaf. I have tried to set the rowHeight but this also changes the root node height. Below is the example code.
(Tree Renderer)
    private class WorkerNodeTreeRenderer extends DefaultTreeCellRenderer
        public Component getTreeCellRendererComponent(JTree tree, Object value, boolean selected, boolean expanded, boolean leaf, int row, boolean hasFocus)
            GuntherWorker worker = null;
            DefaultMutableTreeNode node = (DefaultMutableTreeNode)value;
            if(node.getUserObject() instanceof GuntherWorker)
                worker = (GuntherWorker)node.getUserObject();
                if(leaf)
                    WorkerTreeNode panel = new WorkerTreeNode();
                    panel.setWorker(worker);
                    panel.setPreferredSize(new Dimension(400, 170));
                    panel.setSize(new Dimension(400, 70));
                    return(panel);
            else if(node.getUserObject() instanceof String)
                JLabel nameLbl = new JLabel(node.getUserObject().toString());
                nameLbl.setFont(new Font("Dialog", Font.BOLD, 14));
                return(nameLbl);
            return(null);
    }(TreeListener)
    public class WorkerTreeNodeListener implements TreeSelectionListener
        public void valueChanged(TreeSelectionEvent e)
            DefaultMutableTreeNode node = (DefaultMutableTreeNode)configTree.getLastSelectedPathComponent();
            if(node == null)
                return;
            DefaultTreeModel dtm = (DefaultTreeModel)configTree.getModel();
            configTree.expandPath(configTree.getPathForRow(configTree.getLeadSelectionRow()));
    }(Tree population Method)
    private void populateTree()
        ConfigUtil configUtil = new ConfigUtil();
        guntherConfig = configUtil.retrieveConfig();
        Vector <GuntherWorker> workers = new Vector<GuntherWorker>(guntherConfig.getWorkers());
        DefaultTreeModel dtm = (DefaultTreeModel)configTree.getModel();
        DefaultMutableTreeNode rootNode = (DefaultMutableTreeNode)dtm.getRoot();
        Iterator <GuntherWorker> workerIter = workers.iterator();
        while(workerIter.hasNext())
            GuntherWorker worker = workerIter.next();
            DefaultMutableTreeNode myNode = new DefaultMutableTreeNode(worker.getName());
            myNode.add(new DefaultMutableTreeNode(worker));
            rootNode.add(myNode);
        dtm.setRoot(rootNode);
    }

Answer 1

Just for those interested the fix was that the GUI builder in Netbeans 5.0 defaults to setting the JTree fixedRowSize and this prevents resizing of custom components properly. To fix this simply specify the rowSize as 0 in the properties which will allow you to uncheck the isFixedRowSize property.