swing - Triggering Tree Cell Edit Event

问题

I have a JTree with editable nodes.

How can I programmatically trigger the tree cell edit event, i.e. bring up the node-renaming textbox in place of a highlighted node, as if the user manually highlighted it and pressed F2?

Basically I want to add a "Rename" menu item or toolbar button, to clue users in on that particular function of the tree, and I want it to function identically to an F2 keypress when the user highlights a node.

回答1:

1) some node is selected (by Mouse / KeyBoard event) and by listening by TreeSelectionListener, then selected path has unique ID

2) add Swing Action to JMenuItem (in JPopup???, not clear from your question, how to get node from /to ???)

3) create class, void, whatever and to fire

SwingUtilities.invokeLater(new Runnable() {  
    public void run() {  
        tree.startEditingAtPath(path);  
    }  
});

4) based on answer by @Michael Dunn to my question on another forum

回答2:

See this tutorial

To make the text in the tree's nodes editable, we invoke setEditable(true) on the tree. When the user has finished editing a node, the model generates a tree model event that tells any listeners — including the JTree — that tree nodes have changed. Note that although DefaultMutableTreeNode has methods for changing a node's content, changes should go through the DefaultTreeModel cover methods. Otherwise, the tree model events would not be generated, and listeners such as the tree would not know about the updates.

EDIT:

To add a context menu for a node, see this question: Right-click context menu for Java JTree?.

来源：https://stackoverflow.com/questions/14184995/swing-triggering-tree-cell-edit-event