/**
* Adds nodes to the specified parent node recurrsively.
*
* @param parent_node the parent node.
* @param list the list of child node names.
*/
protected void addNode(DefaultMutableTreeNode parent_node, Vector list) {
SortableArray array = null;
if (mode == DATE_ORIENTED && parent_node.getLevel() <= 2) {
array = new Array(list.size());
for (int i = 0; i < list.size(); i++)
((Array) array).set(i, Integer.parseInt((String) list.elementAt(i)));
} else {
array = new StringArray(list.size());
for (int i = 0; i < list.size(); i++)
((StringArray) array).set(i, (String) list.elementAt(i));
}
ArrayIndex index = array.sortAscendant();
for (int i = 0; i < array.getArraySize(); i++) {
String name = (String) list.elementAt(index.get(i));
// Converts 1...12 to January...December.
if (mode == DATE_ORIENTED && parent_node.getLevel() == 1) {
int month = Integer.parseInt(name);
name = JulianDay.getFullSpellMonthString(month);
}
DefaultMutableTreeNode node = new DefaultMutableTreeNode(name);
parent_node.add(node);
}
}
/**
* Called whenever the value of the selection changes.
*
* @param e the event that characterizes the change.
*/
public void valueChanged(TreeSelectionEvent e) {
TreePath path = e.getPath();
if (path != null) {
DefaultMutableTreeNode node = (DefaultMutableTreeNode) path.getLastPathComponent();
if (node.isLeaf()) {
if (getInformation(path) != null) {
// When selecting an image information.
XmlInformation info = getInformation(path);
for (int i = 0; i < listener_list.size(); i++) {
InformationTreeSelectionListener listener =
(InformationTreeSelectionListener) listener_list.elementAt(i);
listener.select(info);
}
} else {
// When expanding a folder.
expandNode(node);
}
}
}
}
/**
* Expands the sub folders and image informations under the specified node.
*
* @param node the node.
*/
protected void expandNode(DefaultMutableTreeNode node) {
try {
Object[] paths = node.getPath();
String path_str = "";
Vector folder_list = new Vector();
for (int i = 1; i < paths.length; i++) {
String name = (String) ((DefaultMutableTreeNode) paths[i]).getUserObject();
path_str += "/" + name;
// Converts January...December to 1...12.
if (mode == DATE_ORIENTED && i == 2) {
for (int m = 1; m <= 12; m++) {
if (JulianDay.getFullSpellMonthString(m).equals(name)) name = String.valueOf(m);
}
}
folder_list.addElement(name);
}
// When to expand sub folders.
Vector folders = new Vector();
if (mode == DATE_ORIENTED) folders = db_manager.getDateOrientedFolders(folder_list);
if (mode == PATH_ORIENTED) folders = db_manager.getPathOrientedFolders(folder_list);
addNode(node, folders);
// When to expand image informations.
XmlDBAccessor accessor = null;
if (mode == DATE_ORIENTED) accessor = db_manager.getDateOrientedAccessor(folder_list);
if (mode == PATH_ORIENTED) accessor = db_manager.getPathOrientedAccessor(folder_list);
if (accessor != null) {
Vector name_list = new Vector();
XmlInformation info = (XmlInformation) accessor.getFirstElement();
while (info != null) {
name_list.addElement(info.getPath());
hash_info.put(path_str + "/" + info.getPath(), info);
info = (XmlInformation) accessor.getNextElement();
}
addNode(node, name_list);
}
revalidate();
repaint();
} catch (IOException exception) {
String message = "Failed to read the database.";
JOptionPane.showMessageDialog(pane, message, "Error", JOptionPane.ERROR_MESSAGE);
}
}