WindowBuilders.java 文件源码

protected JInternalFrame createInstanceImpl() {
    JInternalFrame frame = new JInternalFrame(title, resizable, closable, maximizable, iconable) {
        protected JRootPane createRootPane() {
            return _rootPane == null ? null : _rootPane.createInstance();
        }
        public void addNotify() {
            try {
                // Doesn't seem to work correctly
                setClosed(_isClosed);
                setMaximum(_isMaximum);
                setIcon(_isIcon);
                setSelected(_isSelected);
            } catch (PropertyVetoException ex) {}
        }
    };
    return frame;
}