Java JTree Expand getExpandedPaths(JTree tree)

Description

Get a copy of the list of expanded tree paths of a tree.

License

Apache License

Declaration

public static TreePath[] getExpandedPaths(JTree tree) 

Method Source Code

//package com.java2s;
/*//from  w  w w  .  j a va2  s.  c o m
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.util.ArrayList;
import java.util.Enumeration;
import javax.swing.JTree;

import javax.swing.tree.TreePath;

public class Main {
    /**
     * Get a copy of the list of expanded tree paths of a tree.
     */
    public static TreePath[] getExpandedPaths(JTree tree) {
        ArrayList<TreePath> expandedPaths = new ArrayList<TreePath>();
        TreePath rootPath = new TreePath(tree.getModel().getRoot());
        Enumeration enumeration = tree.getExpandedDescendants(rootPath);
        if (enumeration != null) {
            while (enumeration.hasMoreElements()) {
                expandedPaths.add((TreePath) enumeration.nextElement());
            }
        }
        TreePath[] array = new TreePath[expandedPaths.size()];
        expandedPaths.toArray(array);
        return array;
    }
}

Related

1. expandTree(JTree tree, TreeNode start, int level)
2. expandTreeLevels(JTree tree, TreePath parent, boolean expand, int desiredLevel)
3. expandTreePaths(JTree tree, Enumeration expandPaths)
4. fullExpand(JTree tree, TreePath parentPath, int nExpansions)
5. getExpandedPaths(JTree tree)
6. getLastExpandedNodes(final JTree tree)
7. getPaths(JTree tree, boolean expanded)
8. getTreeSelectedExpandedIcon()
9. isTreePathExpandable(TreeModel treeModel, TreePath treePath)