🚀 go-pugleaf

Make sure your images are actually getting loaded ok.  Paths can be a 
real pain.

Then, if all your icons are the same, this is really easy.  
DefaultTreeCellRenderer is actually based on a JLabel, so simply 
substitute the icon with your image.

If different nodes have different icons, then this is a bit trickier.  
Here is my renderer, I've used a JGL Pair object to wrap the icon and the 
text:

class PairTreeCellRenderer extends DefaultTreeCellRenderer
{

   public void PairTreeCellRenderer()
   {
      setLeafIcon( null );
      setClosedIcon( null );
      setOpenIcon( null );
   }

   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 );
      pair = (Pair) ((DefaultMutableTreeNode)value).getUserObject();
      setText( pair.second.toString() );
      setIcon( (Icon)pair.first );
      selected = sel;
      return this;
   }

   public String getToolTipText()
   {
      return "";
   }
   private Pair pair;
}


Then, here is how I use this:

ImageIcon imageDatabase = new ImageIcon( IMAGE_PATH + "database.gif" );
DefaultMutableTreeNode tempNode = null;

rootNode = new DefaultMutableTreeNode( new Pair( null, "Objects") );
treeModel = new DefaultTreeModel(rootNode);
conMetaTree.setModel( treeModel );
conMetaTree.setCellRenderer( new PairTreeCellRenderer());

// load the nodes
tempNode = new DefaultMutableTreeNode( new Pair( imageDatabase, s));
treeModel.insertNodeInto( tempNode,
                          rootNode,
                          rootNode.getChildCount() );

etc.


Tad Frysinger (TeamB)