java - 在java swing中突出显示树中搜索到的节点

Question

m_searchButton.addActionListener(new ActionListener() {
    public void actionPerformed(ActionEvent e) {
        DefaultMutableTreeNode node = searchNode(m_searchText.getText());
        if (node != null) {
          TreeNode[] nodes = m_model.getPathToRoot(node);
          TreePath path = new TreePath(nodes);
          m_tree.scrollPathToVisible(path);
          m_tree.setSelectionPath(path);
        } else {
          System.out.println("Node with string " + m_searchText.getText() + " not found");
        }
    }
});

searchNode() 的代码是

public DefaultMutableTreeNode searchNode(String nodeStr) {
    DefaultMutableTreeNode node = null;
    Enumeration e = m_rootNode.breadthFirstEnumeration();
    while (e.hasMoreElements()) {
      node = (DefaultMutableTreeNode) e.nextElement();
      if (nodeStr.equals(node.getUserObject().toString())) {
        return node;
      }
    }
    return null;
}

我已经写了这个代码顶部搜索树中的一个节点？但是我无法用蓝色突出显示找到的节点。你能提供解决方案吗？

Answer 1

您对 TreeCellRenderer 的实现可以指定所需的颜色。见 Customizing a Tree's Display和引用的例子 here .