Example usage for javax.swing.tree DefaultMutableTreeNode DefaultMutableTreeNode

List of usage examples for javax.swing.tree DefaultMutableTreeNode DefaultMutableTreeNode

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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:edu.ucla.stat.SOCR.chart.ChartTree_dynamic.java

private void createTreeModel(BufferedReader rder) {
    //System.out.println("CreateTreeModel:start");      

    String[] nodeList;/*  w  w  w  .j  a va2 s.com*/
    String line;
    if (treeRootName == null)
        root = new DefaultMutableTreeNode("SOCRCharts");
    else
        root = new DefaultMutableTreeNode(treeRootName);

    StringBuffer sb = new StringBuffer();

    while ((line = readLine(rder)) != null && !(line.toLowerCase().startsWith("["))) {
        if (line.toLowerCase().startsWith("subcategory")) {
            line = line.substring(line.indexOf("=") + 1);
            sb.append(line.trim());
            sb.append(",");
        } //ignore other cases 
    }

    StringTokenizer tk = new StringTokenizer(new String(sb), ",");
    nodeList = new String[tk.countTokens()];
    int i = 0;
    while (tk.hasMoreTokens()) {
        nodeList[i] = tk.nextToken();
        i++;
    }

    for (i = 0; i < nodeList.length; i++) {
        //System.out.println(nodeList[i]);
        root.add(createChartsNode(nodeList[i]));
    }
}

From source file:net.sf.housekeeper.swing.CategoriesView.java

private DefaultMutableTreeNode createNode(final Category cat) {
    final DefaultMutableTreeNode rootNode = new DefaultMutableTreeNode(cat);

    final Iterator catIter = cat.getChildrenIterator();
    while (catIter.hasNext()) {
        Category element = (Category) catIter.next();
        rootNode.add(createNode(element));
    }/*from  w w w  .jav a 2s .c  o  m*/

    return rootNode;
}

From source file:TreeEditTest.java

/**
 * Makes the buttons to add a sibling, add a child, and delete a node.
 *//*www  .j  a  v a  2 s  .  c  om*/
public void makeButtons() {
    JPanel panel = new JPanel();
    JButton addSiblingButton = new JButton("Add Sibling");
    addSiblingButton.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent event) {
            DefaultMutableTreeNode selectedNode = (DefaultMutableTreeNode) tree.getLastSelectedPathComponent();

            if (selectedNode == null)
                return;

            DefaultMutableTreeNode parent = (DefaultMutableTreeNode) selectedNode.getParent();

            if (parent == null)
                return;

            DefaultMutableTreeNode newNode = new DefaultMutableTreeNode("New");

            int selectedIndex = parent.getIndex(selectedNode);
            model.insertNodeInto(newNode, parent, selectedIndex + 1);

            // now display new node

            TreeNode[] nodes = model.getPathToRoot(newNode);
            TreePath path = new TreePath(nodes);
            tree.scrollPathToVisible(path);
        }
    });
    panel.add(addSiblingButton);

    JButton addChildButton = new JButton("Add Child");
    addChildButton.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent event) {
            DefaultMutableTreeNode selectedNode = (DefaultMutableTreeNode) tree.getLastSelectedPathComponent();

            if (selectedNode == null)
                return;

            DefaultMutableTreeNode newNode = new DefaultMutableTreeNode("New");
            model.insertNodeInto(newNode, selectedNode, selectedNode.getChildCount());

            // now display new node

            TreeNode[] nodes = model.getPathToRoot(newNode);
            TreePath path = new TreePath(nodes);
            tree.scrollPathToVisible(path);
        }
    });
    panel.add(addChildButton);

    JButton deleteButton = new JButton("Delete");
    deleteButton.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent event) {
            DefaultMutableTreeNode selectedNode = (DefaultMutableTreeNode) tree.getLastSelectedPathComponent();

            if (selectedNode != null && selectedNode.getParent() != null)
                model.removeNodeFromParent(selectedNode);
        }
    });
    panel.add(deleteButton);
    add(panel, BorderLayout.SOUTH);
}

From source file:it.unibas.spicygui.controllo.datasource.operators.GenerateSchemaTree.java

public void visitAttributeNode(AttributeNode node) {
    boolean key = keyChecker.checkIfIsKey(node, dataSource.getDataSource());
    boolean foreignKey = keyChecker.checkIfIsForeignKey(node, dataSource.getDataSource());
    DefaultMutableTreeNode treeNode = new DefaultMutableTreeNode(
            new TreeNodeAdapter(node, key, foreignKey, dataSource.getType()));
    if (logger.isDebugEnabled()) {
        logger.debug("Creato nuovo nodo: " + treeNode);
    }/* w  ww  .  j a v  a  2  s  . co  m*/
    currentTreeNode.add(treeNode);
}

From source file:it.unibas.spicygui.controllo.window.operator.ProjectTreeGenerator.java

private void analizzaScenario(DefaultMutableTreeNode treeNode, Scenario scenario) {
    DefaultMutableTreeNode nodeScenario = null;
    if (scenario.isSelected()) {
        nodeScenario = new DefaultMutableTreeNode(new TreeTopComponentAdapter(scenario, true, false, false));
    } else {/*from   w  ww . j  a v  a2s  .c  om*/
        nodeScenario = new DefaultMutableTreeNode(new TreeTopComponentAdapter(scenario, false, false, false));
    }
    treeNode.add(nodeScenario);
    if (scenario.getMappingTaskTopComponent() != null) {
        DefaultMutableTreeNode nodeTopComponent = new DefaultMutableTreeNode(
                new TreeTopComponentAdapter(scenario.getMappingTaskTopComponent(), false, false, false));
        nodeScenario.add(nodeTopComponent);

        createMappingTaskChild(nodeTopComponent, scenario.getMappingTask().getSourceProxy(), "Source");
        createMappingTaskChild(nodeTopComponent, scenario.getMappingTask().getTargetProxy(), "Target");

    }
    if (scenario.getTransformationTopComponent() != null) {
        DefaultMutableTreeNode nodeTopComponent = new DefaultMutableTreeNode(
                new TreeTopComponentAdapter(scenario.getTransformationTopComponent(), false, false, false));
        nodeScenario.add(nodeTopComponent);
    }
    if (scenario.getInstancesTopComponent() != null) {
        DefaultMutableTreeNode nodeTopComponent = new DefaultMutableTreeNode(
                new TreeTopComponentAdapter(scenario.getInstancesTopComponent(), false, false, false));
        nodeScenario.add(nodeTopComponent);

        createInstanceChild(nodeTopComponent, scenario.getMappingTask().getSourceProxy(), "Source");
        createInstanceChild(nodeTopComponent, scenario.getMappingTask().getTargetProxy(), "Taget");
    }
    if (scenario.getXQueryTopComponent() != null) {
        DefaultMutableTreeNode nodeTopComponent = new DefaultMutableTreeNode(
                new TreeTopComponentAdapter(scenario.getXQueryTopComponent(), false, false, false));
        nodeScenario.add(nodeTopComponent);
    }
    if (scenario.getSqlTopComponent() != null) {
        DefaultMutableTreeNode nodeTopComponent = new DefaultMutableTreeNode(
                new TreeTopComponentAdapter(scenario.getSqlTopComponent(), false, false, false));
        nodeScenario.add(nodeTopComponent);
    }
    if (scenario.getTGDListTopComponent() != null) {
        DefaultMutableTreeNode nodeTopComponent = new DefaultMutableTreeNode(
                new TreeTopComponentAdapter(scenario.getTGDListTopComponent(), false, false, false));
        nodeScenario.add(nodeTopComponent);
    }
    if (scenario.getTGDCorrespondencesTopComponent() != null) {
        DefaultMutableTreeNode nodeTopComponent = new DefaultMutableTreeNode(
                new TreeTopComponentAdapter(scenario.getTGDCorrespondencesTopComponent(), false, false, false));
        nodeScenario.add(nodeTopComponent);
    }
}

From source file:com.mindcognition.mindraider.ui.swing.trash.TrashJPanel.java

/**
 * Constructor./*  w  w w .j  a va2 s. c om*/
 */
private TrashJPanel() {
    treeNodeToResourceUriMap = new HashMap();

    rootNode = new DefaultMutableTreeNode(Messages.getString("TrashJPanel.notebookArchive"));
    treeModel = new DefaultTreeModel(rootNode);
    treeModel.addTreeModelListener(new MyTreeModelListener());

    tree = new JTree(treeModel);
    tree.setEditable(false);
    tree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
    tree.addTreeExpansionListener(this);
    tree.addTreeWillExpandListener(this);
    tree.setShowsRootHandles(true);
    tree.putClientProperty("JTree.lineStyle", "Angled");

    // tree rendered
    // TODO implement own renderer in order to tooltips
    tree.setCellRenderer(new TrashTreeCellRenderer(IconsRegistry.getImageIcon("trashFull.png"),
            IconsRegistry.getImageIcon("explorerNotebookIcon.png")));

    setLayout(new BorderLayout());

    // control panel
    JToolBar tp = new JToolBar();
    tp.setLayout(new GridLayout(1, 6));
    undoButton = new JButton("", IconsRegistry.getImageIcon("trashUndo.png"));
    undoButton.setEnabled(false);
    undoButton.setToolTipText("Restore Outline");
    undoButton.addActionListener(new ActionListener() {

        public void actionPerformed(ActionEvent e) {
            DefaultMutableTreeNode node = (DefaultMutableTreeNode) tree.getLastSelectedPathComponent();
            if (node == null) {
                return;
            }
            new RestoreNotebookJDialog((String) treeNodeToResourceUriMap.get(node), "Restore Outline",
                    "Restore", true);
        }
    });
    tp.add(undoButton);

    deleteButton = new JButton("", IconsRegistry.getImageIcon("explorerDeleteSmall.png"));
    deleteButton.setToolTipText("Delete Outline");
    deleteButton.addActionListener(new ActionListener() {

        public void actionPerformed(ActionEvent e) {
            DefaultMutableTreeNode node = (DefaultMutableTreeNode) tree.getLastSelectedPathComponent();
            if (node == null) {
                return;
            }

            int result = JOptionPane.showConfirmDialog(MindRaider.mainJFrame,
                    "Do you really want to DELETE this Outline?", "Delete Outline", JOptionPane.YES_NO_OPTION);
            if (result == JOptionPane.YES_OPTION) {
                MindRaider.labelCustodian.deleteOutline((String) treeNodeToResourceUriMap.get(node));
                refresh();
                ExplorerJPanel.getInstance().refresh();
            }
        }
    });
    tp.add(deleteButton);

    emptyButton = new JButton("", IconsRegistry.getImageIcon("trashEmpty.png"));

    emptyButton.setToolTipText(Messages.getString("TrashJPanel.emptyArchive"));
    emptyButton.addActionListener(new ActionListener() {

        public void actionPerformed(ActionEvent e) {
            int result = JOptionPane.showConfirmDialog(MindRaider.mainJFrame,
                    "Do you really want to DELETE all discarded Outlines?", "Empty Trash",
                    JOptionPane.YES_NO_OPTION);
            if (result == JOptionPane.YES_OPTION) {
                final SwingWorker worker = new SwingWorker() {

                    public Object construct() {
                        ProgressDialogJFrame progressDialogJFrame = new ProgressDialogJFrame("Empty Trash",
                                "<html><br>&nbsp;&nbsp;<b>Deleting:</b>&nbsp;&nbsp;</html>");
                        try {
                            ResourceDescriptor[] resourceDescriptors = MindRaider.labelCustodian
                                    .getDiscardedOutlineDescriptors();
                            if (resourceDescriptors != null) {
                                for (int i = 0; i < resourceDescriptors.length; i++) {
                                    MindRaider.labelCustodian.deleteOutline(resourceDescriptors[i].getUri());
                                }
                                refresh();
                            }
                        } finally {
                            if (progressDialogJFrame != null) {
                                progressDialogJFrame.dispose();
                            }
                        }
                        return null;
                    }
                };
                worker.start();
            }
        }
    });
    tp.add(emptyButton);

    add(tp, BorderLayout.NORTH);

    // add the tree
    JScrollPane scrollPane = new JScrollPane(tree);
    add(scrollPane);
    // build the whole tree
    buildTree();
    // click handler
    tree.addTreeSelectionListener(new TreeSelectionListener() {

        public void valueChanged(TreeSelectionEvent e) {
            DefaultMutableTreeNode node = (DefaultMutableTreeNode) tree.getLastSelectedPathComponent();
            if (node == null) {
                return;
            }
            logger.debug("Tree selection path: " + node.getPath()[node.getLevel()]);

            enableDisableToolbarButtons(node.getLevel());
        }
    });
}

From source file:logica.Estacion.java

public Estacion(String nombre, Tipo tipo) throws CreacionException {
    if (tipo == Tipo.BASE) {
        // Se puede instanciar solo una estacion base
        /// Chequea la existencia de una Estacion Base
        if (estacionBaseExiste)
            throw new CreacionException(
                    "No se pudo instanciar el " + "objeto. No se puede crear mas de una Estacion Base");
        // else/*from   w ww .j a va2s. c om*/
        estacionBaseExiste = true;
        clase = Tipo.BASE;
        // Creo la red de estaciones del la estacion. 
        //Maximo 4 estaciones conectadas
        redEstaciones = new Estacion[4];
    } else {
        // No se puede instanciar una estacion meteorologica sin tener una base
        /// Chequea la no existencia de una Estacion Base
        if (!estacionBaseExiste)
            throw new CreacionException(
                    "No se pudo instanciar el " + "objeto. Se debe crear primero una Estacion Base");

        clase = Tipo.MET;
        // Creo la red de estaciones del la estacion. 
        //Maximo 4 estaciones conectadas
        redEstaciones = new Estacion[3];
    }

    this.ID = IDsiguiente;
    IDsiguiente++;
    if (nombre == null) // Nombre por defecto por si no se le dio uno
        nombre = "Estacion" + Integer.toString(ID);
    this.nombre = nombre;

    LOGGER.log(Level.INFO, String.format("Creanda estacion %s %d ( %s ).", clase.toString(), ID, nombre));

    // Creo la red de estaciones del la estacion.
    int redSize = redEstaciones.length;
    for (int i = 0; i < redSize; i++)
        redEstaciones[i] = null;

    // Creo la pila donde se guardan las mediciones (PaqueteDeDatos)
    medidasPila = new Stack();

    // Creo el treeNode
    estacionTreeNode = new DefaultMutableTreeNode(this);
}

From source file:appletComponentArch.DynamicTree.java

public DefaultMutableTreeNode addObject(DefaultMutableTreeNode parent, Object child, boolean shouldBeVisible) {
    DefaultMutableTreeNode childNode = new DefaultMutableTreeNode(child);

    if (parent == null) {
        parent = rootNode;/*from w  w w . j  a va 2 s.  c  om*/
    }

    //It is key to invoke this on the TreeModel, and NOT DefaultMutableTreeNode
    treeModel.insertNodeInto(childNode, parent, parent.getChildCount());

    //Make sure the user can see the lovely new node.
    if (shouldBeVisible) {
        tree.scrollPathToVisible(new TreePath(childNode.getPath()));
    }
    return childNode;
}

From source file:EditorPaneExample11.java

public EditorPaneExample11() {
    super("JEditorPane Example 11");

    pane = new JEditorPane();
    pane.setEditable(false); // Read-only
    getContentPane().add(new JScrollPane(pane), "Center");

    // Build the panel of controls
    JPanel panel = new JPanel();

    panel.setLayout(new GridBagLayout());
    GridBagConstraints c = new GridBagConstraints();
    c.gridwidth = 1;//  w w  w.  ja  va 2  s  . co m
    c.gridheight = 1;
    c.anchor = GridBagConstraints.EAST;
    c.fill = GridBagConstraints.NONE;
    c.weightx = 0.0;
    c.weighty = 0.0;

    JLabel urlLabel = new JLabel("URL: ", JLabel.RIGHT);
    panel.add(urlLabel, c);
    JLabel loadingLabel = new JLabel("State: ", JLabel.RIGHT);
    c.gridy = 1;
    panel.add(loadingLabel, c);
    JLabel typeLabel = new JLabel("Type: ", JLabel.RIGHT);
    c.gridy = 2;
    panel.add(typeLabel, c);
    c.gridy = 3;
    panel.add(new JLabel(LOAD_TIME), c);

    c.gridy = 4;
    c.gridwidth = 2;
    c.weightx = 1.0;
    c.anchor = GridBagConstraints.WEST;
    onlineLoad = new JCheckBox("Online Load");
    panel.add(onlineLoad, c);
    onlineLoad.setSelected(true);
    onlineLoad.setForeground(typeLabel.getForeground());

    c.gridx = 1;
    c.gridy = 0;
    c.anchor = GridBagConstraints.EAST;
    c.fill = GridBagConstraints.HORIZONTAL;

    urlCombo = new JComboBox();
    panel.add(urlCombo, c);
    urlCombo.setEditable(true);
    loadingState = new JLabel(spaces, JLabel.LEFT);
    loadingState.setForeground(Color.black);
    c.gridy = 1;
    panel.add(loadingState, c);
    loadedType = new JLabel(spaces, JLabel.LEFT);
    loadedType.setForeground(Color.black);
    c.gridy = 2;
    panel.add(loadedType, c);
    timeLabel = new JLabel("");
    c.gridy = 3;
    panel.add(timeLabel, c);

    getContentPane().add(panel, "South");

    // Allocate the empty tree model
    DefaultMutableTreeNode emptyRootNode = new DefaultMutableTreeNode("Empty");
    emptyModel = new DefaultTreeModel(emptyRootNode);

    // Create and place the heading tree
    tree = new JTree(emptyModel);
    tree.setPreferredSize(new Dimension(200, 200));
    getContentPane().add(new JScrollPane(tree), "East");

    // Change page based on combo selection
    urlCombo.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent evt) {
            if (populatingCombo == true) {
                return;
            }
            Object selection = urlCombo.getSelectedItem();
            try {
                // Check if the new page and the old
                // page are the same.
                URL url;
                if (selection instanceof URL) {
                    url = (URL) selection;
                } else {
                    url = new URL((String) selection);
                }

                URL loadedURL = pane.getPage();
                if (loadedURL != null && loadedURL.sameFile(url)) {
                    return;
                }

                // Try to display the page
                urlCombo.setEnabled(false); // Disable input
                urlCombo.paintImmediately(0, 0, urlCombo.getSize().width, urlCombo.getSize().height);
                setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
                // Busy cursor
                loadingState.setText("Loading...");
                loadingState.paintImmediately(0, 0, loadingState.getSize().width,
                        loadingState.getSize().height);
                loadedType.setText("");
                loadedType.paintImmediately(0, 0, loadedType.getSize().width, loadedType.getSize().height);

                timeLabel.setText("");
                timeLabel.paintImmediately(0, 0, timeLabel.getSize().width, timeLabel.getSize().height);

                // Display an empty tree while loading
                tree.setModel(emptyModel);
                tree.paintImmediately(0, 0, tree.getSize().width, tree.getSize().height);

                startTime = System.currentTimeMillis();

                // Choose the loading method
                if (onlineLoad.isSelected()) {
                    // Usual load via setPage
                    pane.setPage(url);
                    loadedType.setText(pane.getContentType());
                } else {
                    pane.setContentType("text/html");
                    loadedType.setText(pane.getContentType());
                    if (loader == null) {
                        loader = new HTMLDocumentLoader();
                    }
                    HTMLDocument doc = loader.loadDocument(url);
                    loadComplete();
                    pane.setDocument(doc);
                    displayLoadTime();
                    populateCombo(findLinks(doc, null));
                    TreeNode node = buildHeadingTree(doc);
                    tree.setModel(new DefaultTreeModel(node));
                    enableInput();
                }
            } catch (Exception e) {
                System.out.println(e);
                JOptionPane.showMessageDialog(pane,
                        new String[] { "Unable to open file", selection.toString() }, "File Open Error",
                        JOptionPane.ERROR_MESSAGE);
                loadingState.setText("Failed");
                enableInput();
            }
        }
    });

    // Listen for page load to complete
    pane.addPropertyChangeListener(new PropertyChangeListener() {
        public void propertyChange(PropertyChangeEvent evt) {
            if (evt.getPropertyName().equals("page")) {
                loadComplete();
                displayLoadTime();
                populateCombo(findLinks(pane.getDocument(), null));
                TreeNode node = buildHeadingTree(pane.getDocument());
                tree.setModel(new DefaultTreeModel(node));
                enableInput();
            }
        }
    });

    // Listener for tree selection
    tree.addTreeSelectionListener(new TreeSelectionListener() {
        public void valueChanged(TreeSelectionEvent evt) {
            TreePath path = evt.getNewLeadSelectionPath();
            if (path != null) {
                DefaultMutableTreeNode node = (DefaultMutableTreeNode) path.getLastPathComponent();
                Object userObject = node.getUserObject();
                if (userObject instanceof Heading) {
                    Heading heading = (Heading) userObject;
                    try {
                        Rectangle textRect = pane.modelToView(heading.getOffset());
                        textRect.y += 3 * textRect.height;
                        pane.scrollRectToVisible(textRect);
                    } catch (BadLocationException e) {
                    }
                }
            }
        }
    });
}

From source file:EditorPaneExample12.java

public EditorPaneExample12() {
    super("JEditorPane Example 12");

    pane = new JEditorPane();
    pane.setEditable(false); // Read-only
    getContentPane().add(new JScrollPane(pane), "Center");

    // Build the panel of controls
    JPanel panel = new JPanel();

    panel.setLayout(new GridBagLayout());
    GridBagConstraints c = new GridBagConstraints();
    c.gridwidth = 1;//from w  w  w.j  ava  2  s. c om
    c.gridheight = 1;
    c.anchor = GridBagConstraints.EAST;
    c.fill = GridBagConstraints.NONE;
    c.weightx = 0.0;
    c.weighty = 0.0;

    JLabel urlLabel = new JLabel("URL: ", JLabel.RIGHT);
    panel.add(urlLabel, c);
    JLabel loadingLabel = new JLabel("State: ", JLabel.RIGHT);
    c.gridy = 1;
    panel.add(loadingLabel, c);
    JLabel typeLabel = new JLabel("Type: ", JLabel.RIGHT);
    c.gridy = 2;
    panel.add(typeLabel, c);
    c.gridy = 3;
    panel.add(new JLabel(LOAD_TIME), c);

    c.gridy = 4;
    c.gridwidth = 2;
    c.weightx = 1.0;
    c.anchor = GridBagConstraints.WEST;
    onlineLoad = new JCheckBox("Online Load");
    panel.add(onlineLoad, c);
    onlineLoad.setSelected(true);
    onlineLoad.setForeground(typeLabel.getForeground());

    c.gridx = 1;
    c.gridy = 0;
    c.anchor = GridBagConstraints.EAST;
    c.fill = GridBagConstraints.HORIZONTAL;

    urlCombo = new JComboBox();
    panel.add(urlCombo, c);
    urlCombo.setEditable(true);
    loadingState = new JLabel(spaces, JLabel.LEFT);
    loadingState.setForeground(Color.black);
    c.gridy = 1;
    panel.add(loadingState, c);
    loadedType = new JLabel(spaces, JLabel.LEFT);
    loadedType.setForeground(Color.black);
    c.gridy = 2;
    panel.add(loadedType, c);
    timeLabel = new JLabel("");
    c.gridy = 3;
    panel.add(timeLabel, c);

    getContentPane().add(panel, "South");

    // Allocate the empty tree model
    DefaultMutableTreeNode emptyRootNode = new DefaultMutableTreeNode("Empty");
    emptyModel = new DefaultTreeModel(emptyRootNode);

    // Create and place the heading tree
    tree = new JTree(emptyModel);
    tree.setPreferredSize(new Dimension(200, 200));
    getContentPane().add(new JScrollPane(tree), "East");

    // Change page based on combo selection
    urlCombo.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent evt) {
            if (populatingCombo == true) {
                return;
            }
            Object selection = urlCombo.getSelectedItem();
            loadNewPage(selection);
        }
    });

    // Listen for page load to complete
    pane.addPropertyChangeListener(new PropertyChangeListener() {
        public void propertyChange(PropertyChangeEvent evt) {
            if (evt.getPropertyName().equals("page")) {
                loadComplete();
                displayLoadTime();
                populateCombo(findLinks(pane.getDocument(), null));
                TreeNode node = buildHeadingTree(pane.getDocument());
                tree.setModel(new DefaultTreeModel(node));
                enableInput();
                loadingPage = false;
            }
        }
    });

    // Listener for tree selection
    tree.addTreeSelectionListener(new TreeSelectionListener() {
        public void valueChanged(TreeSelectionEvent evt) {
            TreePath path = evt.getNewLeadSelectionPath();
            if (path != null) {
                DefaultMutableTreeNode node = (DefaultMutableTreeNode) path.getLastPathComponent();
                Object userObject = node.getUserObject();
                if (userObject instanceof Heading) {
                    Heading heading = (Heading) userObject;
                    try {
                        Rectangle textRect = pane.modelToView(heading.getOffset());
                        textRect.y += 3 * textRect.height;
                        pane.scrollRectToVisible(textRect);
                    } catch (BadLocationException e) {
                    }
                }
            }
        }
    });

    // Listener for hypertext events
    pane.addHyperlinkListener(new HyperlinkListener() {
        public void hyperlinkUpdate(HyperlinkEvent evt) {
            // Ignore hyperlink events if the frame is busy
            if (loadingPage == true) {
                return;
            }
            if (evt.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
                JEditorPane sp = (JEditorPane) evt.getSource();
                if (evt instanceof HTMLFrameHyperlinkEvent) {
                    HTMLDocument doc = (HTMLDocument) sp.getDocument();
                    doc.processHTMLFrameHyperlinkEvent((HTMLFrameHyperlinkEvent) evt);
                } else {
                    loadNewPage(evt.getURL());
                }
            } else if (evt.getEventType() == HyperlinkEvent.EventType.ENTERED) {
                pane.setCursor(handCursor);
            } else if (evt.getEventType() == HyperlinkEvent.EventType.EXITED) {
                pane.setCursor(defaultCursor);
            }
        }
    });
}