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

DefaultMutableTreeNode addNodes(DefaultMutableTreeNode curTop, File dir) {
    String curPath = dir.getPath();
    DefaultMutableTreeNode curDir = new DefaultMutableTreeNode(curPath);
    if (curTop != null) {
        curTop.add(curDir);/*from  ww w . j a  va 2 s  .c o m*/
    }

    List<File> files = new ArrayList<File>(Arrays.asList(dir.listFiles(new FileFilter() {
        @Override
        public boolean accept(File pathname) {
            String name = pathname.getName().toLowerCase();
            return name.endsWith(".h")
                    || (pathname.isDirectory() && !("System Volume Information".equalsIgnoreCase(name)));
        }
    })));

    Collections.sort(files);

    for (File file : files) {
        if (file.isDirectory()) {
            addNodes(curDir, file);
        }
    }
    for (File file : files) {
        if (file.isFile()) {
            curDir.add(new DefaultMutableTreeNode(file));
        }
    }
    return curDir;
}

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From source file:Main.java

void createNodes(DefaultMutableTreeNode top) {
    DefaultMutableTreeNode contactName;
    List<Contact> contacts = new ArrayList<Contact>();
    contacts.add(new Contact("Me", true));
    contacts.add(new Contact("You"));

    Iterator<Contact> contactItr = contacts.iterator();
    while (contactItr.hasNext()) {
        contactName = new DefaultMutableTreeNode(contactItr.next());
        top.add(contactName);/*  www  .  j  av a  2  s . c  o m*/
    }
}

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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));
    }// w  w  w  .  j  a v a 2 s  .  c  o 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();
}

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From source file:VSX.java

public TreeModel parse(String filename) {
    SAXParserFactory factory = SAXParserFactory.newInstance();
    XMLTreeHandler handler = new XMLTreeHandler();
    try {//from w  w w .j a v  a2 s .co m
        // Parse the input.
        SAXParser saxParser = factory.newSAXParser();
        saxParser.parse(new File(filename), handler);
    } catch (Exception e) {
        System.err.println("File Read Error: " + e);
        e.printStackTrace();
        return new DefaultTreeModel(new DefaultMutableTreeNode("error"));
    }
    return new DefaultTreeModel(handler.getRoot());
}

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From source file:Main.java

public Main() {
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    TreeNode root = getNodes();//from  w w  w. j  a  v a2 s .c o  m
    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);
}

---

From source file:MainClass.java

DefaultMutableTreeNode addNodes(DefaultMutableTreeNode curTop, File dir) {
    String curPath = dir.getPath();
    DefaultMutableTreeNode curDir = new DefaultMutableTreeNode(curPath);
    if (curTop != null) {
        curTop.add(curDir);//from   w w w .  j  ava  2 s.  co  m
    }
    ArrayList ol = new ArrayList();
    String[] tmp = dir.list();
    for (int i = 0; i < tmp.length; i++)
        ol.add(tmp[i]);
    File f;
    ArrayList files = new ArrayList();

    for (int i = 0; i < ol.size(); i++) {
        String thisObject = (String) ol.get(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.add(thisObject);
    }
    for (int fnum = 0; fnum < files.size(); fnum++)
        curDir.add(new DefaultMutableTreeNode(files.get(fnum)));
    return curDir;
}

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From source file:Main.java

private void buildTreeFromString(final DefaultTreeModel model, final String str) {
    DefaultMutableTreeNode root = (DefaultMutableTreeNode) model.getRoot();
    String[] strings = str.split("/");
    DefaultMutableTreeNode node = root;
    for (String s : strings) {
        int index = childIndex(node, s);
        if (index < 0) {
            DefaultMutableTreeNode newChild = new DefaultMutableTreeNode(s);
            node.insert(newChild, node.getChildCount());
            node = newChild;/*w w w.j a  va2s.co m*/
        } else {
            node = (DefaultMutableTreeNode) node.getChildAt(index);
        }
    }
}

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From source file:Main.java

private DefaultMutableTreeNode processHierarchy(Object[] hierarchy) {
    DefaultMutableTreeNode node = new DefaultMutableTreeNode(hierarchy[0]);
    DefaultMutableTreeNode child;
    for (int i = 1; i < hierarchy.length; i++) {
        Object nodeSpecifier = hierarchy[i];
        if (nodeSpecifier instanceof Object[]) //  node with children
            child = processHierarchy((Object[]) nodeSpecifier);
        else//from w w w  . j a  v  a  2 s .  com
            child = new DefaultMutableTreeNode(nodeSpecifier); //  Leaf
        node.add(child);
    }
    return (node);
}

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From source file:FileTree2.java

public FileTree2() {
    super("Directories Tree [Popup Menus]");
    setSize(400, 300);/*  w ww . j a  v a  2 s.co m*/

    DefaultMutableTreeNode top = new DefaultMutableTreeNode(new IconData(ICON_COMPUTER, null, "Computer"));

    DefaultMutableTreeNode node;
    File[] roots = File.listRoots();
    for (int k = 0; k < roots.length; k++) {
        node = new DefaultMutableTreeNode(new IconData(ICON_DISK, null, new FileNode(roots[k])));
        top.add(node);
        node.add(new DefaultMutableTreeNode(new Boolean(true)));
    }

    m_model = new DefaultTreeModel(top);
    m_tree = new JTree(m_model);

    m_tree.putClientProperty("JTree.lineStyle", "Angled");

    TreeCellRenderer renderer = new IconCellRenderer();
    m_tree.setCellRenderer(renderer);

    m_tree.addTreeExpansionListener(new DirExpansionListener());

    m_tree.addTreeSelectionListener(new DirSelectionListener());

    m_tree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
    m_tree.setShowsRootHandles(true);
    m_tree.setEditable(false);

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

    m_display = new JTextField();
    m_display.setEditable(false);
    getContentPane().add(m_display, BorderLayout.NORTH);

    // NEW
    m_popup = new JPopupMenu();
    m_action = new AbstractAction() {
        public void actionPerformed(ActionEvent e) {
            if (m_clickedPath == null)
                return;
            if (m_tree.isExpanded(m_clickedPath))
                m_tree.collapsePath(m_clickedPath);
            else
                m_tree.expandPath(m_clickedPath);
        }
    };
    m_popup.add(m_action);
    m_popup.addSeparator();

    Action a1 = new AbstractAction("Delete") {
        public void actionPerformed(ActionEvent e) {
            m_tree.repaint();
            JOptionPane.showMessageDialog(FileTree2.this, "Delete option is not implemented", "Info",
                    JOptionPane.INFORMATION_MESSAGE);
        }
    };
    m_popup.add(a1);

    Action a2 = new AbstractAction("Rename") {
        public void actionPerformed(ActionEvent e) {
            m_tree.repaint();
            JOptionPane.showMessageDialog(FileTree2.this, "Rename option is not implemented", "Info",
                    JOptionPane.INFORMATION_MESSAGE);
        }
    };
    m_popup.add(a2);
    m_tree.add(m_popup);
    m_tree.addMouseListener(new PopupTrigger());

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

    setVisible(true);
}

---

From source file:Main.java

public Main() {
    setDefaultCloseOperation(EXIT_ON_CLOSE);
    root = new DefaultMutableTreeNode("Root");
    root.add(e1);/*from w  w w  .  ja v a2 s  .  c o  m*/
    root.add(e2);
    root.add(e3);
    e1.add(e11);
    e2.add(e22);
    e3.add(e33);
    e11.add(e111);
    e22.add(e222);
    e33.add(e333);

    tree = new JTree(root);
    tree.addTreeSelectionListener(this);
    add(new JScrollPane(tree), BorderLayout.CENTER);
    currentSelectionField = new JTextField("Current Selection: NONE");
    add(currentSelectionField, BorderLayout.SOUTH);
    setSize(250, 275);
    setLocationRelativeTo(null);
    setVisible(true);
}

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