JTree et Option Dialog

Bonjour,

il me semble qu'en surchargeant la méthode setExpandedState, ça doit être assez facile, non ?

[EDIT] testé et approuvé :

Code:

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public class ConfirmableJTree extends JTree {
 
    protected void setExpandedState(TreePath path, boolean state) {
 
        if (state == true) {
            if (JOptionPane.showConfirmDialog(this,
                    "Are you sure you want to expand this node ?",
                    "Confirm expansion", JOptionPane.YES_NO_OPTION,
                    JOptionPane.QUESTION_MESSAGE) == JOptionPane.NO_OPTION) {
                return;
            }
        }
        super.setExpandedState(path, state);
    }
}