/* (swing1.1.1beta2)*/package tame.examples;import java.awt.BorderLayout;import java.awt.Image;import java.awt.Rectangle;import java.awt.event.WindowAdapter;import java.awt.event.WindowEvent;import java.awt.image.ImageObserver;import javax.swing.ImageIcon;import javax.swing.JFrame;import javax.swing.JScrollPane;import javax.swing.JTree;import javax.swing.tree.DefaultTreeModel;import javax.swing.tree.TreeNode;import javax.swing.tree.TreePath;import tame.tree.IconNode;import tame.tree.IconNodeRenderer;/**@author Nobuo Tamemasa@version 1.0 06/20/99*/public class AnimatedIconTreeExample extends JFrame {  public AnimatedIconTreeExample() {    super("AnimatedIconTreeExample");    String[] strs = {"CARNIVORA",                       // 0		      "Felidae",                        // 1		        "Acinonyx jutatus  (cheetah)",  // 2		        "Panthera leo  (lion)",         // 3		      "Canidae",                        // 4		        "Canis lupus  (wolf)",          // 5		        "Lycaon pictus  (lycaon)",      // 6		        "Vulpes Vulpes  (fox)"};        // 7    IconNode[] nodes = new IconNode[strs.length];    for (int i=0;i<strs.length;i++) {      nodes[i] = new IconNode(strs[i]);    }    nodes[0].add(nodes[1]);    nodes[0].add(nodes[4]);    nodes[1].add(nodes[2]);    nodes[1].add(nodes[3]);    nodes[4].add(nodes[5]);    nodes[4].add(nodes[6]);    nodes[4].add(nodes[7]);    nodes[2].setIcon(new ImageIcon("images/3-119.gif"));    nodes[3].setIcon(new ImageIcon("images/3-119.gif"));    nodes[5].setIcon(new ImageIcon("images/3-6.gif"));    nodes[6].setIcon(new ImageIcon("images/3-6.gif"));    nodes[7].setIcon(new ImageIcon("images/3-6.gif"));    JTree tree = new JTree( nodes[0] );    tree.setCellRenderer(new IconNodeRenderer());    setImageObserver(tree, nodes);    JScrollPane sp = new JScrollPane(tree);    getContentPane().add(sp, BorderLayout.CENTER);  }  private void setImageObserver(JTree tree,IconNode[] nodes) {    for (int i=0;i<nodes.length;i++) {      ImageIcon icon = (ImageIcon)nodes[i].getIcon();      if (icon != null) {        icon.setImageObserver(new NodeImageObserver(tree, nodes[i]));      }    }  }  class NodeImageObserver implements ImageObserver {    JTree            tree;    DefaultTreeModel model;    TreeNode         node;    NodeImageObserver(JTree tree,TreeNode node) {      this.tree  = tree;      this.model = (DefaultTreeModel)tree.getModel();      this.node  = node;    }    public boolean imageUpdate(Image img, int flags,			       int x, int y, int w, int h) {      if ((flags & (FRAMEBITS|ALLBITS)) != 0) {        TreePath path = new TreePath(model.getPathToRoot(node));        Rectangle rect = tree.getPathBounds(path);        if (rect != null) {          tree.repaint(rect);        }      }      return (flags & (ALLBITS|ABORT)) == 0;    }  }  public static void main(String args[]) {    AnimatedIconTreeExample frame = new AnimatedIconTreeExample();    frame.addWindowListener(new WindowAdapter() {      public void windowClosing(WindowEvent e) {System.exit(0);}    });    frame.setSize(280, 200);    frame.setVisible(true);  }}