PComplexService.java 文件源码

@Override
public boolean canImport(TransferHandler.TransferSupport info) {

    final JTree.DropLocation dl = (JTree.DropLocation) info.getDropLocation();
    final TreePath tp = dl.getPath();
    final DefaultMutableTreeNode parent = (DefaultMutableTreeNode) tp
        .getLastPathComponent();
    return parent.getParent().getParent() == null;
}