void PreviewConfigurationWidget::PreviewConfigurationWidgetPrivate::storeSettings() const
{
    QDesignerSharedSettings settings(m_core);
    settings.setCustomPreviewConfigurationEnabled(m_parent->isChecked());
    settings.setCustomPreviewConfiguration(previewConfiguration());
    settings.setUserDeviceSkins(userSkins());
}
PreviewConfigurationWidgetState PreviewConfigurationWidget::PreviewConfigurationWidgetPrivate::previewConfigurationWidgetState() const
{
    return PreviewConfigurationWidgetState(userSkins(), m_parent->isChecked());
}