DrawTest.java 文件源码

@Override
public void itemStateChanged(ItemEvent e) {
    if (e.getSource() instanceof Checkbox) {
        target.setForeground(((Component) e.getSource()).getForeground());
    } else if (e.getSource() instanceof Choice) {
        String choice = (String) e.getItem();
        if (choice.equals("Lines")) {
            target.setDrawMode(DrawPanel.LINES);
        } else if (choice.equals("Points")) {
            target.setDrawMode(DrawPanel.POINTS);
        }
    }
}