What this is

This file is part of the Tame Swing collection that we have compiled. All of the Java source code in these examples was created by Nobuo Tamemasa. As these examples have become hard to find on the internet, we have put them in one place here, supported by minimal advertising. In time we will include images of each running sample Java/Swing application.

The intent of having these files here is to help you learn Java and Swing by example, and Tame certainly created some terrific examples of the power of the Swing framework.

Other links


java, swing, JTree, tree, ImageIcon, icon, node, image, animated, model, TreeModel, DefaultTreeModel, TreeNode, TreePath, ImageObserver, event

The source code

/* (swing1.1) */
package tame.examples;

import java.awt.BorderLayout;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.Hashtable;

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.plaf.metal.MetalIconFactory;

import tame.icon.TextIcons;
import tame.tree.IconNode;
import tame.tree.IconNodeRenderer;

@author Nobuo Tamemasa
@version 1.0 01/12/99
public class IconNodeTreeExample extends JFrame {
  public IconNodeTreeExample() {
    super("IconNode TreeExample");

    String[] strs = {"swing home",  // 0
		     "platf",       // 1
		     "basic.txt",   // 2
		     "metal.c",     // 3
		     "metal.java",  // 4
		     "metal.html",  // 5
		     "Computer",    // 6
		     "A:",          // 7
		     "C:",          // 8
		     "D:"};         // 9

    IconNode[] nodes = new IconNode[strs.length];
    for (int i=0;i<strs.length;i++)
      nodes[i] = new IconNode(strs[i]);
    for (int i=2;i<=5;i++) nodes[1].add(nodes[i]);
    for (int i=7;i<=9;i++) nodes[6].add(nodes[i]);

    // set Icon directly

    // use JTree default Icon
    // nodes[1]
    // nodes[2]

    // set Icon by user Object
    // nodes[3]
    // nodes[4]
    // nodes[5]

    // set Icon by name

    JTree tree = new JTree( nodes[0] );
    tree.putClientProperty("JTree.icons", makeIcons());
    tree.setCellRenderer(new IconNodeRenderer());
    JScrollPane sp = new JScrollPane(tree);
    getContentPane().add(sp, BorderLayout.CENTER);

  private Hashtable makeIcons() {
    Hashtable icons = new Hashtable();
    icons.put("hardDrive"  ,MetalIconFactory.getTreeHardDriveIcon());
    icons.put("computer"   ,MetalIconFactory.getTreeComputerIcon());
    icons.put("c"    ,TextIcons.getIcon("c"));
    icons.put("java" ,TextIcons.getIcon("java"));
    icons.put("html" ,TextIcons.getIcon("html"));
    return icons;

  public static void main(String args[]) {
    IconNodeTreeExample frame = new IconNodeTreeExample();
    frame.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {System.exit(0);}
    frame.setSize(300, 150);