// reorder the nodes
private void reorder(Vector nodes) {
debug("reorder nodes");
// remove all the children of topNode (they'll be added back later)
topNode.removeAllChildren();
// Create an array of the elements for sorting & copy the elements
// into the array.
DefaultMutableTreeNode[] array = new DefaultMutableTreeNode[nodes.size()];
nodes.copyInto(array);
// Sort the array (Quick Sort)
quickSort(array, 0, array.length - 1);
// Reload the topNode. Everthing is in order now.
for (int i = 0; i < array.length; i++) {
topNode.add((DefaultMutableTreeNode) array[i]);
}
// Tell the tree to repaint itself
((DefaultTreeModel) tree.getModel()).reload();
tree.invalidate();
tree.repaint();
}
/** Setd the desired cell renderer on this tree. This is exposed for redefinition by subclases. */
protected void setCellRenderer(NavigatorView view, JTree tree) {
if (view == null) {
return;
}
Map map = view.getHelpSet().getCombinedMap();
tree.setCellRenderer(new BasicSearchCellRenderer(map));
}
/** A value has changed. This is used as a TreeSelectionListener. */
public void valueChanged(TreeSelectionEvent e) {
JHelpNavigator navigator = getHelpNavigator();
HelpModel helpmodel = navigator.getModel();
debug("ValueChanged: " + e);
debug(" model: " + helpmodel);
// send selected items into navigator
TreeItem[] items = null;
TreePath[] paths = tree.getSelectionPaths();
if (paths != null) {
items = new TreeItem[paths.length];
for (int i = 0; i < paths.length; i++) {
if (paths[i] != null) {
DefaultMutableTreeNode node = (DefaultMutableTreeNode) paths[i].getLastPathComponent();
items[i] = (TreeItem) node.getUserObject();
}
}
}
navigator.setSelectedItems(items);
// change current id only if one items is selected
if (items != null && items.length == 1) {
SearchTOCItem item = (SearchTOCItem) items[0];
if (item != null) {
if (item.getID() != null) {
try {
// navigator.setCurrentID(item.getID());
helpmodel.setCurrentID(item.getID(), item.getName(), navigator);
} catch (InvalidHelpSetContextException ex) {
System.err.println("BadID: " + item.getID());
return;
}
} else if (item.getURL() != null) {
// navigator.setCurrentURL(item.getURL());
helpmodel.setCurrentURL(item.getURL(), item.getName(), navigator);
} else {
// no ID, no URL
return;
}
if (helpmodel instanceof TextHelpModel) {
DefaultHighlight h[] = new DefaultHighlight[item.hitCount()];
int i = 0;
Enumeration enum1 = item.getSearchHits();
while (enum1.hasMoreElements()) {
SearchHit info = (SearchHit) enum1.nextElement();
h[i] = new DefaultHighlight(info.getBegin(), info.getEnd());
i++;
}
// using setHighlights() instead of removeAll + add
// avoids one highlighting event
((TextHelpModel) helpmodel).setHighlights(h);
}
}
}
}
/**
* Processes an idChanged event. Search is different from all other navigators in that you while
* search tree is synchronized the highlighting doesn't occur unless selected from the search
* navigator.
*/
public void idChanged(HelpModelEvent e) {
ID id = e.getID();
URL url = e.getURL();
HelpModel helpModel = searchnav.getModel();
debug("idChanged(" + e + ")");
if (e.getSource() != helpModel) {
debug("Internal inconsistency!");
debug(" " + e.getSource() + " != " + helpModel);
throw new Error("Internal error");
}
TreePath s = tree.getSelectionPath();
if (s != null) {
Object o = s.getLastPathComponent();
// should require only a TreeNode
if (o instanceof DefaultMutableTreeNode) {
DefaultMutableTreeNode tn = (DefaultMutableTreeNode) o;
SearchTOCItem item = (SearchTOCItem) tn.getUserObject();
if (item != null) {
ID nId = item.getID();
if (nId != null && nId.equals(id)) {
return;
}
}
}
}
DefaultMutableTreeNode node = findIDorURL(topNode, id, url);
if (node == null) {
// node doesn't exist. Need to clear the selection.
debug("node didn't exist");
tree.clearSelection();
return;
}
TreePath path = new TreePath(node.getPath());
tree.expandPath(path);
tree.setSelectionPath(path);
tree.scrollPathToVisible(path);
}
public void uninstallUI(JComponent c) {
HelpModel helpmodel = searchnav.getModel();
searchnav.removeComponentListener(this);
searchnav.removePropertyChangeListener(this);
TreeSelectionModel tsm = tree.getSelectionModel();
tsm.removeTreeSelectionListener(this);
searchnav.setLayout(null);
searchnav.removeAll();
if (helpmodel != null) {
helpmodel.removeHelpModelListener(this);
}
searchnav = null;
}
public void installUI(JComponent c) {
searchnav = (JHelpSearchNavigator) c;
HelpModel helpmodel = searchnav.getModel();
searchnav.setLayout(new BorderLayout());
searchnav.addPropertyChangeListener(this);
searchnav.addComponentListener(this);
if (helpmodel != null) {
helpmodel.addHelpModelListener(this);
}
JLabel search =
new JLabel(HelpUtilities.getString(HelpUtilities.getLocale(c), "search.findLabel"));
searchparams = new JTextField("", 20);
search.setLabelFor(searchparams);
searchparams.addActionListener(searchAction);
JPanel box = new JPanel();
box.setLayout(new BoxLayout(box, BoxLayout.X_AXIS));
box.add(search);
box.add(searchparams);
searchnav.add("North", box);
topNode = new DefaultMutableTreeNode();
lastTOCnode = null;
tree = new JTree(topNode);
// public String convertValueToText(Object val
TreeSelectionModel tsm = tree.getSelectionModel();
tsm.addTreeSelectionListener(this);
tree.setShowsRootHandles(false);
tree.setRootVisible(false);
sp = new JScrollPane();
sp.getViewport().add(tree);
searchnav.add("Center", sp);
reloadData();
}
public void propertyChange(PropertyChangeEvent event) {
debug(this + " " + "propertyChange: " + event.getSource() + " " + event.getPropertyName());
if (event.getSource() == searchnav) {
String changeName = event.getPropertyName();
if (changeName.equals("helpModel")) {
reloadData((HelpModel) event.getNewValue());
} else if (changeName.equals("font")) {
debug("Font change");
Font newFont = (Font) event.getNewValue();
searchparams.setFont(newFont);
RepaintManager.currentManager(searchparams).markCompletelyDirty(searchparams);
tree.setFont(newFont);
RepaintManager.currentManager(tree).markCompletelyDirty(tree);
}
// changes to UI property?
}
}
