/**
* Recursively rebuild the tree nodes.
*
* @param root The full abstract path to the root saved layout directory.
* @param local The current directory relative to root (null if none).
* @param tnode The current parent tree node.
*/
private void rebuildTreeModel(Path root, Path local, DefaultMutableTreeNode tnode) {
TreeSet<Path> subdirs = new TreeSet<Path>();
TreeSet<String> layouts = new TreeSet<String>();
{
Path current = new Path(root, local);
File files[] = current.toFile().listFiles();
if (files != null) {
int wk;
for (wk = 0; wk < files.length; wk++) {
String name = files[wk].getName();
if (files[wk].isDirectory()) subdirs.add(new Path(local, name));
else if (files[wk].isFile()) layouts.add(name);
}
}
}
for (Path subdir : subdirs) {
TreeData data = new TreeData(subdir);
DefaultMutableTreeNode child = new DefaultMutableTreeNode(data, true);
tnode.add(child);
rebuildTreeModel(root, subdir, child);
}
for (String lname : layouts) {
TreeData data = new TreeData(new Path(local, lname), lname);
DefaultMutableTreeNode child = new DefaultMutableTreeNode(data, false);
tnode.add(child);
}
}
/**
* Update the layouts tree.
*
* @param current The name of the current layout or <CODE>null</CODE> if none.
*/
public void updateLayouts(Path current) throws PipelineException {
DefaultMutableTreeNode root = null;
{
root = new DefaultMutableTreeNode(new TreeData(), true);
{
Path path = new Path(PackageInfo.getSettingsPath(), "layouts");
rebuildTreeModel(path, new Path("/"), root);
}
DefaultTreeModel model = (DefaultTreeModel) pTree.getModel();
model.setRoot(root);
{
Enumeration e = root.depthFirstEnumeration();
if (e != null) {
while (e.hasMoreElements()) {
DefaultMutableTreeNode tnode = (DefaultMutableTreeNode) e.nextElement();
pTree.expandPath(new TreePath(tnode.getPath()));
}
}
}
}
pTree.clearSelection();
if (current != null) {
TreePath tpath = null;
DefaultMutableTreeNode tnode = root;
for (String comp : current.getComponents()) {
DefaultMutableTreeNode next = null;
Enumeration e = tnode.children();
if (e != null) {
while (e.hasMoreElements()) {
DefaultMutableTreeNode child = (DefaultMutableTreeNode) e.nextElement();
TreeData data = (TreeData) child.getUserObject();
if (data.toString().equals(comp)) {
tpath = new TreePath(child.getPath());
next = child;
break;
}
}
}
if (next == null) break;
tnode = next;
}
if (tpath != null) {
pTree.setSelectionPath(tpath);
pTree.makeVisible(tpath);
}
}
}