Example usage for javax.swing JTree JTree

Introduction

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

Prototype

public JTree() 

Source Link

Document

Returns a JTree with a sample model.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    MyTreeNode root = new MyTreeNode(1, 0);
    DefaultTreeModel model = new DefaultTreeModel(root);
    JProgressBar bar = new JProgressBar();
    PropertyChangeListener progressListener = new PropertyChangeListener() {
        @Override/*from w ww.  j  a v a 2  s  .com*/
        public void propertyChange(PropertyChangeEvent evt) {
            bar.setValue((Integer) evt.getNewValue());
        }
    };
    JTree tree = new JTree();
    tree.setShowsRootHandles(true);
    tree.addTreeWillExpandListener(new TreeWillExpandListener() {
        @Override
        public void treeWillExpand(TreeExpansionEvent event) throws ExpandVetoException {
            TreePath path = event.getPath();
            if (path.getLastPathComponent() instanceof MyTreeNode) {
                MyTreeNode node = (MyTreeNode) path.getLastPathComponent();
                node.loadChildren(model, progressListener);
            }
        }

        @Override
        public void treeWillCollapse(TreeExpansionEvent event) throws ExpandVetoException {

        }
    });
    tree.setModel(model);
    root.loadChildren(model, progressListener);
    frame.add(new JScrollPane(tree));
    frame.add(bar, BorderLayout.SOUTH);
    frame.pack();
    frame.setVisible(true);
}

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From source file:de.codesourcery.eve.skills.ui.model.FilteringTreeModel.java

public static void main(String[] args) {
    final JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    final FilteringTreeModel model = new FilteringTreeModel(createTreeModel());

    // setup text field
    final JTextField filterTextField = new JTextField(30);
    filterTextField.addActionListener(new ActionListener() {

        @Override/*from  w w w . j  a  v a2s .c  om*/
        public void actionPerformed(ActionEvent e) {
            model.viewFilterChanged();
        }
    });

    // setup tree
    final JTree tree = new JTree();
    final IViewFilter<ITreeNode> filter = new AbstractViewFilter<ITreeNode>() {

        @Override
        public boolean isHiddenUnfiltered(ITreeNode node) {
            final String nodeValue = node.toString();
            final String expected = filterTextField.getText();

            final boolean isHidden = !StringUtils.isBlank(nodeValue) && !StringUtils.isBlank(expected)
                    && nodeValue.startsWith("child")
                    && !nodeValue.toLowerCase().contains(expected.toLowerCase());

            System.out.println(nodeValue + " does not match " + expected + " => " + isHidden);
            return isHidden;
        }
    };
    model.setViewFilter(filter);
    tree.setModel(model);

    // set 
    final JPanel panel = new JPanel();

    new GridLayoutBuilder()
            .add(new GridLayoutBuilder.HorizontalGroup(new GridLayoutBuilder.Cell(new JScrollPane(tree)),
                    new GridLayoutBuilder.FixedCell(filterTextField)))
            .addTo(panel);

    frame.getContentPane().add(panel);

    frame.pack();
    frame.setLocationRelativeTo(null);
    frame.setVisible(true);
}

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From source file:Main.java

public static void main() {
    JTree tree = new JTree();
    tree.addTreeWillExpandListener(new MyTreeWillExpandListener());
    tree.addTreeExpansionListener(new MyTreeExpansionListener());

    JFrame f = new JFrame();
    f.add(new JScrollPane(tree));
    f.setSize(300, 300);/*ww  w  .j a  v  a 2s . co  m*/
    f.setVisible(true);

}

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From source file:Main.java

public static JComponent makeUI() {
    JTree tree = new JTree();
    TreeModel model = tree.getModel();
    DefaultMutableTreeNode root = (DefaultMutableTreeNode) model.getRoot();
    Enumeration e = root.breadthFirstEnumeration();
    while (e.hasMoreElements()) {
        DefaultMutableTreeNode node = (DefaultMutableTreeNode) e.nextElement();
        Object o = node.getUserObject();
        if (o instanceof String) {
            node.setUserObject(new CheckBoxNode((String) o, false));
        }// w  w  w  . j a  v a 2 s  . c o  m
    }
    tree.setEditable(true);
    tree.setCellRenderer(new CheckBoxNodeRenderer());
    tree.setCellEditor(new CheckBoxNodeEditor());
    tree.expandRow(0);
    return new JScrollPane(tree);
}

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From source file:Main.java

public Main() {
    super();//w  w w. j a  va2  s . co m
    JTree tree = new JTree();
    for (int i = 0; i < tree.getRowCount(); i++) {
        tree.expandRow(i);
    }

    final JScrollPane pane = new JScrollPane(tree) {
        Dimension prefSize = new Dimension(200, 150);

        public Dimension getPreferredSize() {
            return prefSize;
        }
    };

    pane.getVerticalScrollBar().addAdjustmentListener(e -> {
        JViewport vp = pane.getViewport();
        if (vp.getView().getHeight() <= vp.getHeight() + vp.getViewPosition().y) {
            System.out.println("End");
        }
    });

    add(pane);
}

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From source file:Main.java

public Main() {
    this.tree = new JTree();
    this.add(this.tree);

    File fileRoot = new File("C:/");

    DefaultMutableTreeNode root = new DefaultMutableTreeNode(fileRoot);
    DefaultTreeModel model = new DefaultTreeModel(root);

    File[] subItems = fileRoot.listFiles();
    for (File file : subItems) {
        root.add(new DefaultMutableTreeNode(file));
    }/*from w  w w.  ja v  a2 s  .c  o  m*/

    this.tree.setModel(model);

    this.pack();
}

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From source file:Main.java

public Main() {
    JTree myTree = new JTree();
    myTree.getSelectionModel().setSelectionMode(TreeSelectionModel.DISCONTIGUOUS_TREE_SELECTION);

    myTree.addMouseListener(new MyMouseAdapter());

    add(new JScrollPane(myTree));
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    pack();// w  w w  .  j  a  va 2  s  .c o m
    setVisible(true);
}

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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);// w ww . ja  v a2  s.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:net.sf.housekeeper.swing.CategoriesView.java

protected JComponent createControl() {
    tree = new JTree();

    tree.getSelectionModel().setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

    final BeanTreeCellRenderer renderer = new BeanTreeCellRenderer(Category.class, "name");
    renderer.setOpenIcon(null);/*w  w w . j a  va  2  s. c  o m*/
    renderer.setClosedIcon(null);
    renderer.setLeafIcon(null);
    tree.setCellRenderer(renderer);
    tree.setRootVisible(true);

    tree.addTreeSelectionListener(new TreeSelectionListener() {

        public void valueChanged(TreeSelectionEvent e) {
            DefaultMutableTreeNode node = (DefaultMutableTreeNode) tree.getLastSelectedPathComponent();

            if (node == null)
                return;

            Object nodeInfo = node.getUserObject();
            Category cat = (Category) nodeInfo;
            publishSelectionEvent(cat);
        }
    });

    refresh();
    return tree;
}

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From source file:ec.nbdemetra.ui.demo.ComponentsDemo.java

public ComponentsDemo() {
    initStaticResources();//from   w  ww.  ja v  a2s . com

    final Map<Id, Component> demoData = lookupComponents();

    final JPanel main = new JPanel(new BorderLayout());
    final JTree tree = new JTree();
    tree.setRootVisible(false);
    tree.setCellRenderer(new IdRenderer(demoData));

    IdsTree.fill(tree, Lists.newArrayList(demoData.keySet()));
    expandAll(tree);

    tree.getSelectionModel().addTreeSelectionListener(new TreeSelectionListener() {
        @Override
        public void valueChanged(TreeSelectionEvent e) {
            TreePath p = tree.getSelectionPath();
            if (p != null) {
                main.removeAll();
                DefaultMutableTreeNode node = (DefaultMutableTreeNode) p.getLastPathComponent();
                Id id = IdsTree.translate(node);
                Component c = demoData.get(id);
                main.add(c != null ? c : new JPanel());
                main.validate();
                main.repaint();
            }
        }
    });

    JTsList dragDrop = new JTsList();
    dragDrop.setShowHeader(false);
    dragDrop.setInformation(new ITsList.InfoType[] { ITsList.InfoType.TsIdentifier, ITsList.InfoType.Data });
    dragDrop.setPreferredSize(new Dimension(200, 200));
    dragDrop.setTsAction(DemoTsActions.DO_NOTHING);

    JSplitPane left = NbComponents.newJSplitPane(JSplitPane.VERTICAL_SPLIT, NbComponents.newJScrollPane(tree),
            dragDrop);
    JSplitPane splitPane = NbComponents.newJSplitPane(JSplitPane.HORIZONTAL_SPLIT, left, main);
    splitPane.getLeftComponent().setPreferredSize(new Dimension(200, 400));

    setLayout(new BorderLayout());
    add(splitPane, BorderLayout.CENTER);
}

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