如何通过单击编辑JTree节点

Question

我有一个JTree,并希望getTreeCellEditorComponent()在我单击一个节点时调用它的方法.根据DefaultTreeCellEditor课程的文档(我扩展),"编辑是在三次鼠标点击,或点击,暂停,点击和1200毫秒的延迟后开始的." 有没有办法覆盖此行为,以便单击可以启动编辑过程？

Answer 1

该JTreeAPI建议使用MouseListener,但一个关键的绑定也很方便.此示例调用startEditingAtPath()并绑定到Enter键:

final JTree tree = new JTree();
tree.setEditable(true);
MouseListener ml = new MouseAdapter() {
    @Override
    public void mousePressed(MouseEvent e) {
        int row = tree.getRowForLocation(e.getX(), e.getY());
        TreePath path = tree.getPathForLocation(e.getX(), e.getY());
        if (row != -1) {
            if (e.getClickCount() == 1) {
                tree.startEditingAtPath(path);
            }
        }
    }
};
tree.addMouseListener(ml);
tree.getInputMap().put(
    KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0), "startEditing");

附录:另请参阅有关可用性的答案.