@Nullable
private List<UsageInfo> getSelectedUsageInfos() {
TreePath[] paths = myTree.getSelectionPaths();
if (paths == null) return null;
final ArrayList<UsageInfo> result = new ArrayList<UsageInfo>();
for (TreePath path : paths) {
SliceNode sliceNode = fromPath(path);
if (sliceNode != null) {
result.add(sliceNode.getValue().getUsageInfo());
}
}
if (result.isEmpty()) return null;
return result;
}
