JTree 鼠标双击事件

最新推荐文章于 2024-06-29 15:04:30 发布

转载最新推荐文章于 2024-06-29 15:04:30 发布 · 2k 阅读

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本文介绍了一种在Java中为JTree组件添加鼠标监听的方法，通过监听单击和双击事件，可以实现不同功能的调用。具体实现了如何获取点击位置对应的节点路径及行号，并根据点击次数触发相应的处理函数。

If you are interested in detecting either double-click events or when a user clicks on a node, regardless of whether or not it was selected, we recommend you do the following:

 final JTree tree = ...;

 MouseListener ml = new MouseAdapter() {
     public void mouseClicked(MouseEvent e) {
         int selRow = tree.getRowForLocation(e.getX(), e.getY());
         TreePath selPath = tree.getPathForLocation(e.getX(), e.getY());
         if(selRow != -1) {
             if(e.getClickCount() == 1) {
                 mySingleClick(selRow, selPath);
             }
             else if(e.getClickCount() == 2) {
                 myDoubleClick(selRow, selPath);
             }
         }
     }
 };
 tree.addMouseListener(ml);

NOTE: This example obtains both the path and row, but you only need to get the one you're interested in.