Example usage for javax.swing JTree addTreeSelectionListener

Introduction

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

Prototype

public void addTreeSelectionListener(TreeSelectionListener tsl) 

Source Link

Document

Adds a listener for TreeSelection events.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {

    JTree tree = new JTree();

    tree.addTreeSelectionListener(new TreeSelectionListener() {
        public void valueChanged(TreeSelectionEvent evt) {
            TreePath[] paths = evt.getPaths();

            for (int i = 0; i < paths.length; i++) {
                if (evt.isAddedPath(i)) {
                    System.out.println("This node has been selected");
                } else {
                    System.out.println("This node has been deselected");
                }/*  w  ww .j  a va2  s. c om*/
            }
        }
    });
}

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From source file:UsingTreeSelectionListener.java

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

    JTree tree = new JTree();
    tree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
    tree.addTreeSelectionListener(new SelectionListener());

    frame.add(new JScrollPane(tree));

    frame.setSize(300, 200);/*w  ww.ja v a  2s  . c om*/
    frame.setVisible(true);
}

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From source file:SimpleClient.java

public static void main(String argv[]) {
    boolean usage = false;

    for (int optind = 0; optind < argv.length; optind++) {
        if (argv[optind].equals("-L")) {
            url.addElement(argv[++optind]);
        } else if (argv[optind].startsWith("-")) {
            usage = true;/*from   www.ja  v  a 2  s  . c  o m*/
            break;
        } else {
            usage = true;
            break;
        }
    }

    if (usage || url.size() == 0) {
        System.out.println("Usage: SimpleClient -L url");
        System.out.println("   where url is protocol://username:password@hostname/");
        System.exit(1);
    }

    try {
        // Set up our Mailcap entries.  This will allow the JAF
        // to locate our viewers.
        File capfile = new File("simple.mailcap");
        if (!capfile.isFile()) {
            System.out.println("Cannot locate the \"simple.mailcap\" file.");
            System.exit(1);
        }

        CommandMap.setDefaultCommandMap(new MailcapCommandMap(new FileInputStream(capfile)));

        JFrame frame = new JFrame("Simple JavaMail Client");
        frame.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });
        //frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

        // Get a Store object
        SimpleAuthenticator auth = new SimpleAuthenticator(frame);
        Session session = Session.getDefaultInstance(System.getProperties(), auth);
        //session.setDebug(true);

        DefaultMutableTreeNode root = new DefaultMutableTreeNode("Root");

        // create a node for each store we have
        for (Enumeration e = url.elements(); e.hasMoreElements();) {
            String urlstring = (String) e.nextElement();
            URLName urln = new URLName(urlstring);
            Store store = session.getStore(urln);

            StoreTreeNode storenode = new StoreTreeNode(store);
            root.add(storenode);
        }

        DefaultTreeModel treeModel = new DefaultTreeModel(root);
        JTree tree = new JTree(treeModel);
        tree.addTreeSelectionListener(new TreePress());

        /* Put the Tree in a scroller. */
        JScrollPane sp = new JScrollPane();
        sp.setPreferredSize(new Dimension(250, 300));
        sp.getViewport().add(tree);

        /* Create a double buffered JPanel */
        JPanel sv = new JPanel(new BorderLayout());
        sv.add("Center", sp);

        fv = new FolderViewer(null);

        JSplitPane jsp = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, sv, fv);
        jsp.setOneTouchExpandable(true);
        mv = new MessageViewer();
        JSplitPane jsp2 = new JSplitPane(JSplitPane.VERTICAL_SPLIT, jsp, mv);
        jsp2.setOneTouchExpandable(true);

        frame.getContentPane().add(jsp2);
        frame.pack();
        frame.show();

    } catch (Exception ex) {
        System.out.println("SimpletClient caught exception");
        ex.printStackTrace();
        System.exit(1);
    }
}

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From source file:ComponentTree.java

/**
 * This main() method demonstrates the use of the ComponentTree class: it
 * puts a ComponentTree component in a Frame, and uses the ComponentTree to
 * display its own GUI hierarchy. It also adds a TreeSelectionListener to
 * display additional information about each component as it is selected
 *///from  www  .j  a  v a  2  s .  c  o  m
public static void main(String[] args) {
    // Create a frame for the demo, and handle window close requests
    JFrame frame = new JFrame("ComponentTree Demo");
    frame.addWindowListener(new WindowAdapter() {
        public void windowClosing(WindowEvent e) {
            System.exit(0);
        }
    });

    // Create a scroll pane and a "message line" and add them to the
    // center and bottom of the frame.
    JScrollPane scrollpane = new JScrollPane();
    final JLabel msgline = new JLabel(" ");
    frame.getContentPane().add(scrollpane, BorderLayout.CENTER);
    frame.getContentPane().add(msgline, BorderLayout.SOUTH);

    // Now create the ComponentTree object, specifying the frame as the
    // component whose tree is to be displayed. Also set the tree's font.
    JTree tree = new ComponentTree(frame);
    tree.setFont(new Font("SansSerif", Font.BOLD, 12));

    // Only allow a single item in the tree to be selected at once
    tree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);

    // Add an event listener for notifications when
    // the tree selection state changes.
    tree.addTreeSelectionListener(new TreeSelectionListener() {
        public void valueChanged(TreeSelectionEvent e) {
            // Tree selections are referred to by "path"
            // We only care about the last node in the path
            TreePath path = e.getPath();
            Component c = (Component) path.getLastPathComponent();
            // Now we know what component was selected, so
            // display some information about it in the message line
            if (c.isShowing()) {
                Point p = c.getLocationOnScreen();
                msgline.setText("x: " + p.x + "  y: " + p.y + "  width: " + c.getWidth() + "  height: "
                        + c.getHeight());
            } else {
                msgline.setText("component is not showing");
            }
        }
    });

    // Now that we've set up the tree, add it to the scrollpane
    scrollpane.setViewportView(tree);

    // Finally, set the size of the main window, and pop it up.
    frame.setSize(600, 400);
    frame.setVisible(true);
}

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From source file:TreeSelectionRow.java

public static void main(String args[]) {
    String title = "JTree Sample";
    JFrame frame = new JFrame(title);
    JTree tree = new JTree();
    TreeSelectionListener treeSelectionListener = new TreeSelectionListener() {
        public void valueChanged(TreeSelectionEvent treeSelectionEvent) {
            JTree treeSource = (JTree) treeSelectionEvent.getSource();
            System.out.println("Min: " + treeSource.getMinSelectionRow());
            System.out.println("Max: " + treeSource.getMaxSelectionRow());
            System.out.println("Lead: " + treeSource.getLeadSelectionRow());
            System.out.println("Row: " + treeSource.getSelectionRows()[0]);
        }//from w ww  .j  a  v  a  2 s.  c om
    };
    tree.addTreeSelectionListener(treeSelectionListener);

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

    frame.setSize(300, 150);
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(String args[]) {
    JTree tree = new JTree();
    TreeSelectionListener treeSelectionListener = new TreeSelectionListener() {

        @Override/*  w w  w.j  a va2  s  .c o  m*/
        public void valueChanged(TreeSelectionEvent treeSelectionEvent) {
            JTree treeSource = (JTree) treeSelectionEvent.getSource();
            System.out.println("Min: " + treeSource.getMinSelectionRow());
            System.out.println("Max: " + treeSource.getMaxSelectionRow());
            System.out.println("Lead: " + treeSource.getLeadSelectionRow());
            System.out.println("Row: " + treeSource.getSelectionRows()[0]);
        }
    };
    tree.addTreeSelectionListener(treeSelectionListener);
    JFrame frame = new JFrame();
    frame.add(new JScrollPane(tree));
    frame.setSize(300, 150);
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(String args[]) {
    JFrame f = new JFrame("JTree Demo");
    f.setSize(260, 240);/*from ww  w.  j av  a 2s .  co m*/
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    DefaultMutableTreeNode root = new DefaultMutableTreeNode("Root");
    DefaultMutableTreeNode aNode = new DefaultMutableTreeNode("A");
    root.add(aNode);

    DefaultMutableTreeNode bNode = new DefaultMutableTreeNode("B");
    aNode.add(bNode);

    DefaultMutableTreeNode cNode = new DefaultMutableTreeNode("C");
    aNode.add(cNode);

    cNode.add(new DefaultMutableTreeNode("D"));
    cNode.add(new DefaultMutableTreeNode("E"));

    DefaultMutableTreeNode fNode = new DefaultMutableTreeNode("F");
    root.add(fNode);

    DefaultMutableTreeNode gNode = new DefaultMutableTreeNode("G");
    fNode.add(gNode);
    fNode.add(new DefaultMutableTreeNode("H"));
    gNode.add(new DefaultMutableTreeNode("I"));

    JTree jtree = new JTree(root);
    jtree.setEditable(true);

    TreeSelectionModel tsm = jtree.getSelectionModel();
    tsm.setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);

    jtree.addTreeExpansionListener(new TreeExpansionListener() {
        public void treeExpanded(TreeExpansionEvent tee) {
            TreePath tp = tee.getPath();
            System.out.println("Expansion: " + tp.getLastPathComponent());
        }

        public void treeCollapsed(TreeExpansionEvent tee) {
            TreePath tp = tee.getPath();
            System.out.println("Collapse: " + tp.getLastPathComponent());
        }
    });

    jtree.addTreeSelectionListener(new TreeSelectionListener() {
        public void valueChanged(TreeSelectionEvent tse) {
            TreePath tp = tse.getPath();
            System.out.println("Selection event: " + tp.getLastPathComponent());
        }
    });

    jtree.getModel().addTreeModelListener(new TreeModelListener() {
        public void treeNodesChanged(TreeModelEvent tme) {
            TreePath tp = tme.getTreePath();
            Object[] children = tme.getChildren();
            DefaultMutableTreeNode changedNode;
            if (children != null)
                changedNode = (DefaultMutableTreeNode) children[0];
            else
                changedNode = (DefaultMutableTreeNode) tp.getLastPathComponent();

            System.out.println("Model change path: " + tp + "New data: " + changedNode.getUserObject());

        }

        public void treeNodesInserted(TreeModelEvent tme) {
        }

        public void treeNodesRemoved(TreeModelEvent tme) {
        }

        public void treeStructureChanged(TreeModelEvent tme) {
        }
    });

    f.add(new JScrollPane(jtree));
    f.setVisible(true);
}

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From source file:Main.java

public static void main(String[] argv) {
    JTree tree = new JTree();
    tree.getSelectionModel().setSelectionMode(TreeSelectionModel.DISCONTIGUOUS_TREE_SELECTION);
    int treeSelectedRows[] = { 3, 1 };
    tree.setSelectionRows(treeSelectedRows);
    TreeSelectionListener treeSelectionListener = new TreeSelectionListener() {

        @Override//ww w  . j av  a  2  s .  c  om
        public void valueChanged(TreeSelectionEvent treeSelectionEvent) {
            JTree treeSource = (JTree) treeSelectionEvent.getSource();
            System.out.println("Min: " + treeSource.getMinSelectionRow());
            System.out.println("Max: " + treeSource.getMaxSelectionRow());
            System.out.println("Lead: " + treeSource.getLeadSelectionRow());
            System.out.println("Row: " + treeSource.getSelectionRows()[0]);
        }
    };
    tree.addTreeSelectionListener(treeSelectionListener);
    JFrame frame = new JFrame("JTree With Multi-Discontiguous selection");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.add(new JScrollPane(tree));
    frame.setPreferredSize(new Dimension(380, 320));
    frame.setLocation(150, 150);
    frame.pack();
    frame.setVisible(true);
}

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From source file:Main.java

public static void main(String[] argv) {
    JTree tree = new JTree();
    tree.getSelectionModel().setSelectionMode(TreeSelectionModel.DISCONTIGUOUS_TREE_SELECTION);
    int treeSelectedRows[] = { 3, 1 };
    tree.setSelectionRows(treeSelectedRows);
    TreeSelectionListener treeSelectionListener = new TreeSelectionListener() {

        @Override/*from w  w  w  . j  a  v a2 s .c  o m*/
        public void valueChanged(TreeSelectionEvent treeSelectionEvent) {
            JTree treeSource = (JTree) treeSelectionEvent.getSource();
            System.out.println("Min: " + treeSource.getMinSelectionRow());
            System.out.println("Max: " + treeSource.getMaxSelectionRow());
            System.out.println("Lead: " + treeSource.getLeadSelectionRow());
            System.out.println("Row: " + treeSource.getSelectionRows()[0]);
        }
    };
    tree.addTreeSelectionListener(treeSelectionListener);
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.add(new JScrollPane(tree));
    frame.setPreferredSize(new Dimension(380, 320));
    frame.setLocation(150, 150);
    frame.pack();
    frame.setVisible(true);
}

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From source file:MainClass.java

public static void main(String[] args) {
    // create a hierarchy of nodes
    MutableTreeNode root = new DefaultMutableTreeNode("A");
    MutableTreeNode bNode = new DefaultMutableTreeNode("B");
    MutableTreeNode cNode = new DefaultMutableTreeNode("C");
    root.insert(bNode, 0);/*from ww  w .  ja va  2  s.  c om*/
    root.insert(cNode, 1);
    bNode.insert(new DefaultMutableTreeNode("1"), 0);
    bNode.insert(new DefaultMutableTreeNode("2"), 1);
    cNode.insert(new DefaultMutableTreeNode("1"), 0);
    cNode.insert(new DefaultMutableTreeNode("2"), 1);

    final DefaultTreeModel model = new DefaultTreeModel(root);
    final JTree tree = new JTree(model);

    final JTextField nameField = new JTextField("Z");
    final JButton button = new JButton("Add");
    button.setEnabled(false);
    button.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            TreePath tp = tree.getSelectionPath();
            MutableTreeNode insertNode = (MutableTreeNode) tp.getLastPathComponent();
            int insertIndex = 0;
            if (insertNode.getParent() != null) {
                MutableTreeNode parent = (MutableTreeNode) insertNode.getParent();
                insertIndex = parent.getIndex(insertNode) + 1;
                insertNode = parent;
            }
            MutableTreeNode node = new DefaultMutableTreeNode(nameField.getText());
            model.insertNodeInto(node, insertNode, insertIndex);
        }
    });
    JPanel addPanel = new JPanel(new GridLayout(2, 1));
    addPanel.add(nameField);
    addPanel.add(button);

    tree.addTreeSelectionListener(new TreeSelectionListener() {
        public void valueChanged(TreeSelectionEvent e) {
            TreePath tp = e.getNewLeadSelectionPath();
            button.setEnabled(tp != null);
        }
    });

    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(200, 200);
    frame.getContentPane().add(new JScrollPane(tree));
    frame.getContentPane().add(addPanel, BorderLayout.SOUTH);
    frame.setVisible(true);
}

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