CheckListener.java 文件源码

public void keyPressed(KeyEvent e) {
    if (e.getKeyChar() == ' ') {
        JTree tree = (JTree) e.getSource();
        TreePath path = tree.getSelectionPath();
        if( null == path )
            return;

        Node node = Visualizer.findNode( path.getLastPathComponent() );
        if( null == node )
            return;

        boolean isSelected = settings.isNodeVisible( node );
        settings.setNodeVisible( node, !isSelected );
        tree.repaint();

        e.consume();
    }
}