Example usage for javax.swing.tree TreePath TreePath

Introduction

In this page you can find the example usage for javax.swing.tree TreePath TreePath.

Prototype

public TreePath(Object lastPathComponent)

Source Link

Document

Creates a TreePath containing a single element.

Usage

From source file:Utils.java

public static TreePath getPath(TreeNode treeNode) {
    List<Object> nodes = new ArrayList<Object>();
    if (treeNode != null) {
        nodes.add(treeNode);/* w  w  w . j  ava 2s.c  om*/
        treeNode = treeNode.getParent();
        while (treeNode != null) {
            nodes.add(0, treeNode);
            treeNode = treeNode.getParent();
        }
    }

    return nodes.isEmpty() ? null : new TreePath(nodes.toArray());
}

From source file:Main.java

public static void expandTree(JTree tree, boolean expand) {
    expandAll(tree, new TreePath((TreeNode) tree.getModel().getRoot()), expand);
}

From source file:Main.java

public static void expandTree(JTree tree) {
    DefaultMutableTreeNode root = (DefaultMutableTreeNode) tree.getModel().getRoot();
    @SuppressWarnings("unchecked")
    Enumeration<DefaultMutableTreeNode> e = root.breadthFirstEnumeration();
    while (e.hasMoreElements()) {
        DefaultMutableTreeNode node = (DefaultMutableTreeNode) e.nextElement();
        if (node.isLeaf())
            continue;
        int row = tree.getRowForPath(new TreePath(node.getPath()));
        tree.expandRow(row);/*w ww. j  av  a  2  s  .  c  o m*/
    }
}

From source file:Main.java

public void expandAll(JTree tree) {
    TreeNode root = (TreeNode) tree.getModel().getRoot();
    expandAll(tree, new TreePath(root));
}

From source file:Main.java

/** Fully expands the given JTree from the specified node. */
public static void expandTree(final JTree tree, final DefaultMutableTreeNode node) {
    if (node.isLeaf())
        return;/*w w  w. ja  v a2  s.  c o  m*/
    tree.expandPath(new TreePath(node.getPath()));
    final Enumeration e = node.children();
    while (e.hasMoreElements()) {
        expandTree(tree, (DefaultMutableTreeNode) e.nextElement());
    }
}

From source file:Main.java

public TreePath[] getPaths(JTree tree, boolean expanded) {
    TreeNode root = (TreeNode) tree.getModel().getRoot();
    List<TreePath> list = new ArrayList<TreePath>();
    getPaths(tree, new TreePath(root), expanded, list);

    return (TreePath[]) list.toArray(new TreePath[list.size()]);
}

From source file:Main.java

public static Enumeration<TreePath> saveExpansionState(JTree tree) {
    return tree.getExpandedDescendants(new TreePath(tree.getModel().getRoot()));
}

From source file:Main.java

public TreePath getPath(TreeNode node) {
    List<TreeNode> list = new ArrayList<TreeNode>();

    while (node != null) {
        list.add(node);//w  w  w  . j  a  v a2s .  c  om
        node = node.getParent();
    }
    Collections.reverse(list);

    return new TreePath(list.toArray());
}

From source file:Main.java

public Main() {
    setLayout(new BorderLayout());
    treeModel = new DefaultTreeModel(root);
    tree = new JTree(treeModel);
    treeScroll = new JScrollPane(tree);
    add(treeScroll, BorderLayout.WEST);

    properties.setProperty("foo1", "bar1");
    properties.setProperty("foo2", "bar2");
    properties.setProperty("foo3", "bar3");
    properties.setProperty("foo4", "bar4");

    Set<Object> keySet = properties.keySet();
    for (Object key : keySet) {
        root.add(new DefaultMutableTreeNode(key));
    }/*from  w ww. j av  a2s .co  m*/

    tree.expandPath(new TreePath(root));
    descriptionLabel = new JLabel(NOTHING_SELECTED);
    add(descriptionLabel, BorderLayout.CENTER);

    tree.addTreeSelectionListener(e -> {
        DefaultMutableTreeNode selection = (DefaultMutableTreeNode) tree.getLastSelectedPathComponent();
        if (selection != null) {
            String key = (String) selection.getUserObject();
            String command = properties.getProperty(key);
            descriptionLabel.setText(command);
        } else {
            descriptionLabel.setText(NOTHING_SELECTED);
        }
    });
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    pack();
}

From source file:Main.java

public Main() {
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    TreeNode root = getNodes();//from  w  w w . j av  a2 s . com
    DefaultTreeModel model = new DefaultTreeModel(root);
    JTree tree = new JTree(model);
    tree.setRootVisible(false);

    JButton add = new JButton("add new");
    add.addActionListener(e -> {
        DefaultMutableTreeNode selectedNode = (DefaultMutableTreeNode) tree.getLastSelectedPathComponent();
        if (selectedNode == null) {
            return;
        }
        MyObject obj = (MyObject) selectedNode.getUserObject();
        MyObject newChild = new MyObject(obj.name + "-" + (obj.childs.size() + 1));
        obj.childs.add(newChild);
        DefaultMutableTreeNode newNode = new DefaultMutableTreeNode(newChild);
        model.insertNodeInto(newNode, selectedNode, selectedNode.getChildCount());
        TreeNode[] nodes = model.getPathToRoot(newNode);
        TreePath path = new TreePath(nodes);
        tree.scrollPathToVisible(path);
    });

    JButton print = new JButton("print childs");
    print.addActionListener(e -> {
        DefaultMutableTreeNode selectedNode = (DefaultMutableTreeNode) tree.getLastSelectedPathComponent();
        if (selectedNode == null) {
            return;
        }
        MyObject obj = (MyObject) selectedNode.getUserObject();
        System.out.println(obj.childs);
    });
    JPanel btns = new JPanel();
    btns.add(add);
    btns.add(print);

    add(new JScrollPane(tree));
    add(btns, BorderLayout.SOUTH);
    pack();
    setVisible(true);
}