Example usage for javax.swing.tree DefaultMutableTreeNode DefaultMutableTreeNode

Introduction

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

Prototype

public DefaultMutableTreeNode(Object userObject) 

Source Link

Document

Creates a tree node with no parent, no children, but which allows children, and initializes it with the specified user object.

Usage

From source file:Main.java

public Main() {
    DefaultMutableTreeNode forums = new DefaultMutableTreeNode("B");
    forums.add(new DefaultMutableTreeNode("T"));
    DefaultMutableTreeNode articles = new DefaultMutableTreeNode("A");
    articles.add(new DefaultMutableTreeNode("A"));
    DefaultMutableTreeNode examples = new DefaultMutableTreeNode("E");
    examples.add(new DefaultMutableTreeNode("E"));

    rootNode.add(forums);//from   ww  w .  j a  v a2 s.  c o m
    rootNode.add(articles);
    rootNode.add(examples);

    m_tree.setEditable(true);
    m_tree.setSelectionRow(0);

    JScrollPane scrollPane = new JScrollPane(m_tree);
    getContentPane().add(scrollPane, BorderLayout.CENTER);

    JPanel panel = new JPanel();
    m_addButton = new JButton("Add Node");
    m_addButton.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent event) {
            DefaultMutableTreeNode selNode = (DefaultMutableTreeNode) m_tree.getLastSelectedPathComponent();

            if (selNode == null) {
                return;
            }

            DefaultMutableTreeNode newNode = new DefaultMutableTreeNode("New");
            m_model.insertNodeInto(newNode, selNode, selNode.getChildCount());

            TreeNode[] nodes = m_model.getPathToRoot(newNode);
            TreePath path = new TreePath(nodes);
            m_tree.scrollPathToVisible(path);

            m_tree.setSelectionPath(path);

            m_tree.startEditingAtPath(path);
        }

    });
    panel.add(m_addButton);
    getContentPane().add(panel, BorderLayout.SOUTH);
    m_delButton = new JButton("Delete Node");
    m_delButton.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent event) {
            DefaultMutableTreeNode selNode = (DefaultMutableTreeNode) m_tree.getLastSelectedPathComponent();
            if (selNode == null) {
                return;
            }
            MutableTreeNode parent = (MutableTreeNode) (selNode.getParent());
            if (parent == null) {
                return;
            }
            MutableTreeNode toBeSelNode = (MutableTreeNode) selNode.getPreviousSibling();
            if (toBeSelNode == null) {
                toBeSelNode = (MutableTreeNode) selNode.getNextSibling();
            }
            if (toBeSelNode == null) {
                toBeSelNode = parent;
            }
            TreeNode[] nodes = m_model.getPathToRoot(toBeSelNode);
            TreePath path = new TreePath(nodes);
            m_tree.scrollPathToVisible(path);
            m_tree.setSelectionPath(path);
            m_model.removeNodeFromParent(selNode);
        }

    });
    panel.add(m_delButton);
    getContentPane().add(panel, BorderLayout.SOUTH);

    setSize(300, 400);
    setVisible(true);
}

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From source file:Main.java

public static DefaultTreeModel buildDemoModel() {
    DefaultMutableTreeNode root = new DefaultMutableTreeNode("Root");

    DefaultMutableTreeNode childNode = new DefaultMutableTreeNode("A");
    childNode.add(new DefaultMutableTreeNode("A1"));
    childNode.add(new DefaultMutableTreeNode("A2"));
    root.add(childNode);/*from  w w w .  jav a2 s.  c o m*/

    childNode = new DefaultMutableTreeNode("B");
    childNode.add(new DefaultMutableTreeNode("B1"));
    childNode.add(new DefaultMutableTreeNode("B2"));
    root.add(childNode);

    return new DefaultTreeModel(root);
}

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From source file:Main.java

public TestPane() {
    setLayout(new BorderLayout());
    tree = new JTree();
    File rootFile = new File(".");
    DefaultMutableTreeNode root = new DefaultMutableTreeNode(rootFile);
    model = new DefaultTreeModel(root);

    tree.setModel(model);/*from   w  ww  . j av a2s. c o m*/
    tree.setRootVisible(true);
    tree.setShowsRootHandles(true);

    add(new JScrollPane(tree));

    JButton load = new JButton("Load");
    add(load, BorderLayout.SOUTH);

    load.addActionListener(e -> {
        DefaultMutableTreeNode r = (DefaultMutableTreeNode) model.getRoot();
        root.removeAllChildren();
        model.reload();
        File f = (File) r.getUserObject();
        addFiles(f, model, r);
        tree.expandPath(new TreePath(r));
    });
}

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From source file:TestTree.java

public void init() {
    // Build up a bunch of TreeNodes. We use DefaultMutableTreeNode because
    // the//from   w w w.j a  v a  2 s. c  om
    // DefaultTreeModel can use it to build a complete tree.
    DefaultMutableTreeNode root = new DefaultMutableTreeNode("Root");
    DefaultMutableTreeNode subroot = new DefaultMutableTreeNode("SubRoot");
    DefaultMutableTreeNode leaf1 = new DefaultMutableTreeNode("Leaf 1");
    DefaultMutableTreeNode leaf2 = new DefaultMutableTreeNode("Leaf 2");

    // Build our tree model starting at the root node, and then make a JTree
    // out
    // of that.
    treeModel = new DefaultTreeModel(root);
    tree = new JTree(treeModel);

    // Build the tree up from the nodes we created.
    treeModel.insertNodeInto(subroot, root, 0);
    // Or, more succinctly:
    subroot.add(leaf1);
    root.add(leaf2);

    // Display it.
    getContentPane().add(tree, BorderLayout.CENTER);
}

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From source file:SortTreeDemo.java

public SortTreeDemo(String startDir) {
    super("SortTreeModel Demonstration");
    setSize(300, 400);// w  w  w . j  av  a  2  s.c o m
    setDefaultCloseOperation(EXIT_ON_CLOSE);

    PrettyFile f = new PrettyFile(startDir);
    DefaultMutableTreeNode root = new DefaultMutableTreeNode(f);
    SortTreeModel model = new SortTreeModel(root, new TreeStringComparator());
    fillModel(model, root);

    JTree tree = new JTree(model);
    getContentPane().add(new JScrollPane(tree));
}

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From source file:AncestorTree.java

public AncestorTree() {
    super("Ancestor Tree");
    setSize(400, 300);/*from w ww  . j a v a2s . com*/

    DefaultMutableTreeNode top = new DefaultMutableTreeNode(new IconData(ICON_SELF, "Myself"));
    addAncestors(top);
    m_model = new DefaultTreeModel(top);
    m_tree = new JTree(m_model);
    m_tree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
    m_tree.setShowsRootHandles(true);
    m_tree.setEditable(true);

    m_renderer = new IconCellRenderer();
    m_tree.setCellRenderer(m_renderer);
    m_editor = new IconCellEditor(m_tree);
    m_tree.setCellEditor(m_editor);
    m_tree.setInvokesStopCellEditing(true);

    m_tree.addMouseListener(new TreeExpander());

    JScrollPane s = new JScrollPane();
    s.getViewport().add(m_tree);
    getContentPane().add(s, BorderLayout.CENTER);

    WindowListener wndCloser = new WindowAdapter() {
        public void windowClosing(WindowEvent e) {
            System.exit(0);
        }
    };
    addWindowListener(wndCloser);

    setVisible(true);
}

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From source file:XMLTreeView.java

public XMLTreeView(JFrame frame) {
    frame.getContentPane().setLayout(new BorderLayout());
    DefaultMutableTreeNode top = new DefaultMutableTreeNode(file);
    //              DefaultMutableTreeNode top = new DefaultMutableTreeNode("XML Document"); 

    saxTree = new SAXTreeBuilder(top);

    try {//from w w  w .j av a2s  .c  om
        SAXParser saxParser = new SAXParser();
        saxParser.setContentHandler(saxTree);
        saxParser.parse(new InputSource(new FileInputStream(file)));
    } catch (Exception ex) {
        top.add(new DefaultMutableTreeNode(ex.getMessage()));
    }
    JTree tree = new JTree(saxTree.getTree());
    JScrollPane scrollPane = new JScrollPane(tree);

    frame.getContentPane().add("Center", scrollPane);
    frame.setVisible(true);

}

---

From source file:Main.java

public Main() {
    super(BoxLayout.Y_AXIS);
    glassPane.setOpaque(false);/*from  www .j  a  va2  s .  co  m*/
    DefaultMutableTreeNode root = new DefaultMutableTreeNode("Root");
    for (int i = 0; i < 14000; i++) {
        DefaultMutableTreeNode node = new DefaultMutableTreeNode("Root" + i);
        node.add(new DefaultMutableTreeNode("Child" + i));
        root.add(node);
    }

    final JTree tree = new JTree(root);
    tree.setRootVisible(false);
    final JScrollPane pane = new JScrollPane(tree);
    add(pane);

    JButton button = new JButton("Expand");
    button.addActionListener(e -> {
        Thread t = new Thread(new Runnable() {
            @Override
            public void run() {
                try {
                    Thread.sleep(2000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                TreePath[] paths = tree.getSelectionPaths();
                if (paths == null || paths.length == 0) {
                    glassPane.setVisible(false);
                    return;
                }
                tree.setSelectionPath(paths[0]);

                for (int i = 0; i < paths.length; i++) {
                    tree.expandPath(paths[i]);
                }
                glassPane.setVisible(false);
            }
        });
        getRootPane().setGlassPane(glassPane);
        glassPane.setVisible(true);
        t.start();
    });
    add(button);
    glassPane.addMouseWheelListener(e -> {
        for (MouseWheelListener mwl : pane.getMouseWheelListeners()) {
            mwl.mouseWheelMoved(e);
        }
    });
}

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From source file:FSTest.java

public FSTest() {
    super("FSTree Component Test");
    setSize(300, 300);/*from  w  w w .  ja v  a 2s  .com*/
    setDefaultCloseOperation(EXIT_ON_CLOSE);

    FSTree fst = new FSTree(new DefaultMutableTreeNode("Starter"));
    getContentPane().add(new JScrollPane(fst));
    setVisible(true);
}

---

From source file:Main.java

private DefaultMutableTreeNode addNodes(DefaultMutableTreeNode curTop, File dir) {
    String curPath = dir.getPath();
    DefaultMutableTreeNode curDir = new DefaultMutableTreeNode(curPath);
    if (curTop != null) {
        curTop.add(curDir);//  w  w  w .  jav  a  2  s .  c  om
    }
    Vector<String> ol = new Vector<String>();
    String[] tmp = dir.list();
    for (int i = 0; i < tmp.length; i++) {
        ol.addElement(tmp[i]);
    }
    Collections.sort(ol, String.CASE_INSENSITIVE_ORDER);
    File f;
    Vector<Object> files = new Vector<Object>();
    for (int i = 0; i < ol.size(); i++) {
        String thisObject = ol.elementAt(i);
        String newPath;
        if (curPath.equals(".")) {
            newPath = thisObject;
        } else {
            newPath = curPath + File.separator + thisObject;
        }
        if ((f = new File(newPath)).isDirectory()) {
            addNodes(curDir, f);
        } else {
            files.addElement(thisObject);
        }
    }
    for (int fnum = 0; fnum < files.size(); fnum++) {
        curDir.add(new DefaultMutableTreeNode(files.elementAt(fnum)));
    }
    return curDir;
}

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