import com.apple.laf.AquaButtonExtendedTypes.TypeSpecifier; //导入依赖的package包/类
protected boolean setButtonType(final AbstractButton b, final Object prop) {
    if (!(prop instanceof String)) {
        b.putClientProperty(BUTTON_TYPE, null); // so we know to use the automatic button type
        return false;
    }

    final String buttonType = (String)prop;
    boolean iconFont = true;

    final TypeSpecifier specifier = AquaButtonExtendedTypes.getSpecifierByName(buttonType);
    if (specifier != null) {
        b.setBorder(specifier.getBorder());
        iconFont = specifier.setIconFont;
    }

    final Font currentFont = b.getFont();
    if (currentFont == null || currentFont instanceof UIResource) {
        b.setFont(UIManager.getFont(iconFont ? "IconButton.font" : "Button.font"));
    }

    return true;
}