SettingsPanel.java 文件源码

private Widget createSimilarityListBox()
{
    final ListBox box = new ListBox();
    for (WCSimilarityAlgo font : WCSimilarityAlgoRegistry.list())
        box.addItem(font.getDescription(), font.getId());

    box.setSelectedIndex(findIndex(box, setting.getSimilarityAlgorithm().getId()));

    box.addChangeHandler(new ChangeHandler()
    {
        public void onChange(ChangeEvent event)
        {
            WCSimilarityAlgo value = WCSimilarityAlgoRegistry.getById(box.getValue(box.getSelectedIndex()));
            setting.setSimilarityAlgorithm(value);
        }
    });

    box.setTitle("Similarity method for computing relatedness between words; similar words tend to be placed together");
    return box;
}