@Override
 public void keyPressed(KeyEvent e) {
   TreePath path = myTree.getLeadSelectionPath();
   if (path == null) return;
   final Object lastComponent = path.getLastPathComponent();
   if (e.getKeyCode() == KeyEvent.VK_ENTER) {
     if (lastComponent instanceof ParentNode) return;
     doOKAction();
     e.consume();
   } else if (e.getKeyCode() == KeyEvent.VK_INSERT) {
     if (lastComponent instanceof ElementNode) {
       final DefaultMutableTreeNode node = (DefaultMutableTreeNode) lastComponent;
       if (!mySelectedNodes.contains(node)) {
         if (node.getNextNode() != null) {
           myTree.setSelectionPath(new TreePath(node.getNextNode().getPath()));
         }
       } else {
         if (node.getNextNode() != null) {
           myTree.removeSelectionPath(new TreePath(node.getPath()));
           myTree.setSelectionPath(new TreePath(node.getNextNode().getPath()));
           myTree.repaint();
         }
       }
       e.consume();
     }
   }
 }
    public void actionPerformed(ActionEvent arg0) {
      DefaultMutableTreeNode curTreeNode =
          (DefaultMutableTreeNode) treWhere.getLastSelectedPathComponent();

      if (curTreeNode == null) {
        new MessageBox(calcColumnDialog, "请选择树节点!", MessageBox.MESSAGE, MessageBox.BUTTON_OK)
            .show();
        return;
      }
      if (!curTreeNode.isLeaf()) return;

      int row = treWhere.getSelectionRows()[0];
      DefaultMutableTreeNode nextTreeNode = curTreeNode.getNextNode();
      if (!nextTreeNode.isLeaf()) return;

      DefaultTreeModel model = (DefaultTreeModel) treWhere.getModel();
      DefaultMutableTreeNode parTreeNode = (DefaultMutableTreeNode) curTreeNode.getParent();
      int index = parTreeNode.getIndex(curTreeNode);

      model.removeNodeFromParent(curTreeNode);
      model.insertNodeInto(curTreeNode, parTreeNode, index + 1);
      // 刷新节点中文名称
      if (curTreeNode != null) refreshNodeChName(curTreeNode);
      if (curTreeNode.getPreviousSibling() != null)
        refreshNodeChName(curTreeNode.getPreviousSibling());
      model.nodeChanged(curTreeNode);
      model.nodeChanged(curTreeNode.getPreviousSibling());

      treWhere.repaint();
      treWhere.setSelectionRow(row + 1);
    }