Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import javax.swing.*;

import javax.swing.tree.*;

import java.util.*;

public class Main {
    public static void expandTree(JTree tree) {
        expandTree(tree, new TreePath(tree.getModel().getRoot()));
    }

    /**
     * Collapses all the child nodes of a path
     * 
     * @param tree
     *            the tree that contains the paths to collapse
     * @param path
     *            the path to collapse
     */
    public static void expandTree(JTree tree, TreePath path) {
        expandTree(tree, path, new Hashtable());
    }

    protected static void expandTree(JTree tree, TreePath path, Hashtable lookedAt) {
        Object node = path.getLastPathComponent();
        if (lookedAt.containsKey(node))
            return;
        lookedAt.put(node, node);

        Vector paths = new Vector();
        tree.makeVisible(path);
        int childCount = tree.getModel().getChildCount(node);
        for (int i = 0; i < childCount; i++) {
            Object child = tree.getModel().getChild(node, i);
            TreePath p = path.pathByAddingChild(child);
            expandTree(tree, p, lookedAt);
        }
    }
}