WPanelPeer.java 文件源码

@Override
void initialize() {
    super.initialize();
    insets_ = new Insets(0,0,0,0);

    Color c = ((Component)target).getBackground();
    if (c == null) {
        c = SystemColor.window;
        ((Component)target).setBackground(c);
        setBackground(c);
    }
    c = ((Component)target).getForeground();
    if (c == null) {
        c = SystemColor.windowText;
        ((Component)target).setForeground(c);
        setForeground(c);
    }
}