WindowUtils.java 文件源码

/**
 * Installs/resets a ComponentListener to resize the
 * given window to minWidth/Height if needed.
 *
 * @param window
 * @param minWidth
 * @param minHeight
 */
public static void setMinimumSizeManager(Window window, int minWidth,
                                         int minHeight) {
    ComponentListener[] listeners = window.getComponentListeners();
    ComponentListener listener = null;
    for (ComponentListener l : listeners) {
        if (l instanceof MinSizeComponentListener) {
            listener = l;
            break;
        }
    }
    if (listener == null) {
        window.addComponentListener(new MinSizeComponentListener(
                window, minWidth, minHeight));
    } else {
        ((MinSizeComponentListener) listener).resetSizes(minWidth,
                minHeight);
    }
}