public static void ensureSelection(JTree tree) {
final TreePath[] paths = tree.getSelectionPaths();
if (paths != null) {
for (TreePath each : paths) {
if (tree.getRowForPath(each) >= 0 && tree.isVisible(each)) {
return;
}
}
}
for (int eachRow = 0; eachRow < tree.getRowCount(); eachRow++) {
TreePath eachPath = tree.getPathForRow(eachRow);
if (eachPath != null && tree.isVisible(eachPath)) {
tree.setSelectionPath(eachPath);
break;
}
}
}
public void getPaths(JTree tree, TreePath parent, boolean expanded, List list) {
// Return if node is not expanded
if (expanded && !tree.isVisible(parent)) {
return;
}
// Add node to list
list.add(parent);
// Create paths for all children
TreeNode node = (TreeNode) parent.getLastPathComponent();
if (node.getChildCount() >= 0) {
for (Enumeration e = node.children(); e.hasMoreElements(); ) {
TreeNode n = (TreeNode) e.nextElement();
TreePath path = parent.pathByAddingChild(n);
getPaths(tree, path, expanded, list);
}
}
}