private void captureUsagesExpandState(TreePath pathFrom, final Collection<UsageState> states) {
if (!myTree.isExpanded(pathFrom)) {
return;
}
final DefaultMutableTreeNode node = (DefaultMutableTreeNode) pathFrom.getLastPathComponent();
final int childCount = node.getChildCount();
for (int idx = 0; idx < childCount; idx++) {
final TreeNode child = node.getChildAt(idx);
if (child instanceof UsageNode) {
final Usage usage = ((UsageNode) child).getUsage();
states.add(
new UsageState(
usage,
myTree.getSelectionModel().isPathSelected(pathFrom.pathByAddingChild(child))));
} else {
captureUsagesExpandState(pathFrom.pathByAddingChild(child), states);
}
}
}
public void restore() {
final UsageNode node = myUsageNodes.get(myUsage);
if (node == NULL_NODE || node == null) {
return;
}
final DefaultMutableTreeNode parentGroupingNode = (DefaultMutableTreeNode) node.getParent();
if (parentGroupingNode != null) {
final TreePath treePath = new TreePath(parentGroupingNode.getPath());
myTree.expandPath(treePath);
if (mySelected) {
myTree.addSelectionPath(treePath.pathByAddingChild(node));
}
}
}