/** Clears the data in the model. */
private void clear() {
// Stop listening to all config elements in the tree
List nodes = getNodesOfClass(ConfigElement.class);
for (Iterator itr = nodes.iterator(); itr.hasNext(); ) {
DefaultMutableTreeNode node = (DefaultMutableTreeNode) itr.next();
ConfigElement elt = (ConfigElement) node.getUserObject();
elt.removeConfigElementListener(mElementListener);
}
// Clear out all the old nodes from the tree.
((DefaultMutableTreeNode) getRoot()).removeAllChildren();
}
/**
* This gets called whenever one of the ConfigElements we are editing has the values of a
* property get reordered.
*/
public void propertyValueOrderChanged(ConfigElementEvent evt) {
ConfigElement src = (ConfigElement) evt.getSource();
int idx = evt.getIndex();
PropertyDefinition prop_def = src.getDefinition().getPropertyDefinition(evt.getProperty());
DefaultMutableTreeNode elt_node = getNodeFor(src);
// Get the node containing the property description under the source
// ConfigElement node.
for (Enumeration e = elt_node.children(); e.hasMoreElements(); ) {
DefaultMutableTreeNode node = (DefaultMutableTreeNode) e.nextElement();
if (node.getUserObject().equals(prop_def)) {
int start_index = Math.min(evt.getIndex0(), evt.getIndex1());
int end_index = Math.max(evt.getIndex0(), evt.getIndex1());
List removed_children = new ArrayList();
for (int c = start_index; c <= end_index; ++c) {
removed_children.add(getChild(node, c));
}
for (Iterator c = removed_children.iterator(); c.hasNext(); ) {
removeNodeFromParent((MutableTreeNode) c.next());
}
String prop_token = prop_def.getToken();
for (int v = start_index; v <= end_index; ++v) {
if (prop_def.getType() != ConfigElement.class) {
// Create a new node for the reordered property value.
DefaultMutableTreeNode new_node =
new DefaultMutableTreeNode(src.getProperty(prop_token, v));
// Add the new node into the tree.
insertNodeInto(new_node, node, v);
} else {
// Embedded elements are handled specially in that all of
// their respective child properties and such also need to
// be added to the tree at this time.
ConfigElement cur_value = (ConfigElement) src.getProperty(prop_token, v);
addEmbeddedElement(node, cur_value, v);
}
}
}
}
}