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        JDK1.4.x
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import javax.swing.tree.*;
import javax.swing.filechooser.*;
import javax.swing.event.*;
import java.awt.Cursor;
import java.awt.Component;
import java.awt.Font;
import java.io.*;
import java.awt.*;
import javax.swing.*;
import java.util.*;
import java.awt.event.MouseListener;
import java.awt.event.MouseEvent;
/**
 * Title: ϵͳ¼¶Ê÷Ŀ¼
 * Description: 
 * Copyright: Copyright (c) 2004
 * Company: 
 * @author cuijiang contact cj0063@sina.com or cuij7718@yahoo.com.cn
 * @version 1.0
 */
public class AgileSuperJTreeBasic
    extends JTree
    implements TreeExpansionListener, TreeSelectionListener, MouseListener {
  protected DefaultTreeModel treeModel;
  protected FileSystemView fileSystemView; //½¨Á¢ÎļþϵͳÊÓÀà¶ÔÏó
  protected FileNode root;
  public AgileSuperJTreeBasic() {
    Font myFont = new Font("ËÎÌå", 11, 12);
    fileSystemView = FileSystemView.getFileSystemView();
    root = new FileNode(fileSystemView.getRoots()[0]);
    root.explore();
    treeModel = new DefaultTreeModel(root);
    this.setModel(treeModel); //É趨Ê÷Ðβ˵¥
    this.addTreeExpansionListener(this); //´ò¿ª/¹Ø±Õ½Úµãʼþ
    this.addTreeSelectionListener(this); //Ñ¡ÔñµÄʼþ
    this.setCellRenderer(new MyTreeCellRenderer()); //Éú³Éͼ±ê
    this.setFont(myFont);
    this.setRootVisible(true);
    this.setRowHeight(18);