JCombobox,编辑器和渲染器相关

作为JCombobox ListCellRenderer,我有一个类似这样的类:

class ZComboBoxRenderer extends JPanel implements ListCellRenderer{
private ZGrid grid;
public ZComboBoxRenderer(ZGrid grid) {
    setLayout(new BorderLayout());
    this.grid = grid;
    add(new JScrollPane(grid), BorderLayout.CENTER);
}
public ZGrid getGrid(){
    return grid;
}
@Override
public Component getListCellRendererComponent(JList list, Object value,
        int index, boolean isSelected, boolean cellHasFocus) {
    grid.fetchSQL();
    return this;
}
}

ZGrid 这里,延伸 JTable .

ListCellRendererComponent ,我提供一个JPanel,它有 兹格里德 JCombobox . 问题是,在它的列表中,这个ZGrid画得很好。但它也在JCombobox的编辑内部绘制。我上传了一张图片来更好地展示这一点。

有办法把编辑和列表分开吗?

alt text http://img444.imageshack.us/img444/564/soex.jpg