public void addSelectionPaths(TreePath[] paths) {
// unselect all descendants of paths[]
for (int i = 0; i < paths.length; i++) {
TreePath path = paths[i];
TreePath[] selectionPaths = getSelectionPaths();
if (selectionPaths == null) break;
ArrayList toBeRemoved = new ArrayList();
for (int j = 0; j < selectionPaths.length; j++) {
if (isDescendant(selectionPaths[j], path)) toBeRemoved.add(selectionPaths[j]);
}
super.removeSelectionPaths((TreePath[]) toBeRemoved.toArray(new TreePath[0]));
}
// if all siblings are selected then unselect them and select parent recursively
// otherwize just select that path.
for (int i = 0; i < paths.length; i++) {
TreePath path = paths[i];
TreePath temp = null;
while (areSiblingsSelected(path)) {
temp = path;
if (path.getParentPath() == null) break;
path = path.getParentPath();
}
if (temp != null) {
if (temp.getParentPath() != null) addSelectionPath(temp.getParentPath());
else {
if (!isSelectionEmpty()) removeSelectionPaths(getSelectionPaths());
super.addSelectionPaths(new TreePath[] {temp});
}
} else super.addSelectionPaths(new TreePath[] {path});
}
}
// if any ancestor node of given path is selected then unselect it
// and selection all its descendants except given path and descendants.
// otherwise just unselect the given path
private void toggleRemoveSelection(TreePath path) {
Stack stack = new Stack();
TreePath parent = path.getParentPath();
while (parent != null && !isPathSelected(parent)) {
stack.push(parent);
parent = parent.getParentPath();
}
if (parent != null) stack.push(parent);
else {
super.removeSelectionPaths(new TreePath[] {path});
return;
}
while (!stack.isEmpty()) {
TreePath temp = (TreePath) stack.pop();
TreePath peekPath = stack.isEmpty() ? path : (TreePath) stack.peek();
Object node = temp.getLastPathComponent();
Object peekNode = peekPath.getLastPathComponent();
int childCount = model.getChildCount(node);
for (int i = 0; i < childCount; i++) {
Object childNode = model.getChild(node, i);
if (childNode != peekNode)
super.addSelectionPaths(new TreePath[] {temp.pathByAddingChild(childNode)});
}
}
super.removeSelectionPaths(new TreePath[] {parent});
}
/**
* Overrides the super to prevent selection of place holder accounts
*
* @param path new path to select
*/
@Override
public void setSelectionPath(final TreePath path) {
if (path != null) {
Object o = path.getLastPathComponent();
if (o != null) {
Account a = (Account) ((DefaultMutableTreeNode) o).getUserObject();
if (a != null && isAccountEnabled(a)) {
super.setSelectionPath(path);
}
}
} else {
super.setSelectionPath(null);
}
}
public void removeSelectionPaths(TreePath[] paths) {
for (int i = 0; i < paths.length; i++) {
TreePath path = paths[i];
if (path.getPathCount() == 1) super.removeSelectionPaths(new TreePath[] {path});
else toggleRemoveSelection(path);
}
}
@Override
public void setSelectionPaths(TreePath[] paths) {
LinkedList<TreePath> filteredPaths = new LinkedList<TreePath>();
for (TreePath path : paths) {
if (path.getLastPathComponent() instanceof HierarchicalData) filteredPaths.add(path);
}
super.setSelectionPaths(filteredPaths.toArray(new TreePath[0]));
}
@Override
protected void fireValueChanged(TreeSelectionEvent e) {
if (e.isAddedPath()) {
HierarchicalData selectedObject = (HierarchicalData) e.getPath().getLastPathComponent();
tree.setSelectedNode(selectedObject);
} else if (getSelectionCount() > 0) {
HierarchicalData selectedObject =
(HierarchicalData) getSelectionPaths()[0].getLastPathComponent();
tree.setSelectedNode(selectedObject);
} else tree.setSelectedNode(null);
super.fireValueChanged(e);
}
public Browser(CavityNestingDB cndb) throws SQLException {
super(new BorderLayout());
setPreferredSize(new Dimension(300, 500));
db = cndb;
displayer = new NodeDisplay();
top = new DefaultMutableTreeNode("CavityNestingDB");
tree = new JTree(top);
DefaultTreeSelectionModel selModel = new DefaultTreeSelectionModel();
selModel.setSelectionMode(DefaultTreeSelectionModel.SINGLE_TREE_SELECTION);
tree.setSelectionModel(selModel);
tree.addTreeSelectionListener(
new TreeSelectionListener() {
public void valueChanged(TreeSelectionEvent e) {
if (e.isAddedPath()) {
TreePath path = e.getPath();
DefaultMutableTreeNode node = (DefaultMutableTreeNode) path.getLastPathComponent();
Object value = node.getUserObject();
// System.out.println(String.valueOf(value));
if (value instanceof CavityDBObject) {
displayer.display((CavityDBObject) value);
} else {
// System.out.println(value.getClass().getSimpleName());
}
}
}
});
JSplitPane splitter = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT);
add(splitter, BorderLayout.CENTER);
splitter.add(new JScrollPane(tree));
splitter.add(displayer);
populate();
}
/**
* This is overridden to set <code>updatingListSelectionModel</code> and message super. This is
* the only place DefaultTreeSelectionModel alters the ListSelectionModel.
*/
public void resetRowSelection() {
if (!updatingListSelectionModel) {
updatingListSelectionModel = true;
try {
super.resetRowSelection();
} finally {
updatingListSelectionModel = false;
}
}
// Notice how we don't message super if
// updatingListSelectionModel is true. If
// updatingListSelectionModel is true, it implies the
// ListSelectionModel has already been updated and the
// paths are the only thing that needs to be updated.
}
@Override
public void setSelectionPath(TreePath path) {
if (path.getLastPathComponent() instanceof HierarchicalData) super.setSelectionPath(path);
}
