Сохранение пользовательских слоев

QByteArray gis::common::convertStringToKOI8_R(const QString &s)
{
    return QTextCodec::codecForName("KOI8-R")->fromUnicode(s);
}


//как используется:
// пример 1

    QByteArray sitName = gis::common::convertStringToKOI8_R(m_file.absoluteFilePath());
    m_site = panorama::mapOpenSiteForMap(m_parentMap->descriptor(), sitName.constData(),
                               OpenMode);
// пример 2
SiteDescriptor MapProjectAccess::createSit(const QFileInfo &rscFile,
                                           const UserLayer::Id layerId)
{
    QString sitFileName = gis::common::convertGUIDtoString(layerId);
    QByteArray rscFilePath = gis::common::convertStringToKOI8_R(
                rscFile.absoluteFilePath());
    QFileInfo mainFile = mainMap()->file();
    QDir mainDir = mainFile.dir();
    mainDir.mkdir(UserLayersDirName);
    QDir userLayersDir = mainDir;
    if (!userLayersDir.cd(UserLayersDirName)){
        qWarning() << __FUNCTION__ << "can't go to dir" << userLayersDir.filePath(UserLayersDirName);
        return {};
    }
    if (!userLayersDir.mkdir(sitFileName)){
        qWarning() << __FUNCTION__ << "can't create dir for sit" << sitFileName;
        return {};
    }
    QDir sitDir = userLayersDir;
    if (!sitDir.cd(sitFileName)){
        qWarning() << __FUNCTION__ << "can't go to dir" << sitDir.filePath(sitFileName);
        return {};
    }
    QByteArray sitFilePath = gis::common::convertStringToKOI8_R(sitDir.filePath(sitFileName + ".sit"));
    SiteDescriptor ret = panorama::mapCreateAndAppendSiteForMap(mainMap()->descriptor(),
                                                      sitFilePath.constData(),
                                                      rscFilePath.constData());
    if (!ret.isValid()){
        qWarning() << __FUNCTION__ << "mapCreateAndAppendSiteForMap call failed";
    }
    return ret;

}

    QString mapName = "/home/user/GIS/Projects/gisdesigner/examples/Data/testMap/Podolsk/layer/layer1.sit";
    QByteArray ba = QTextCodec::codecForName("KOI8-R")->fromUnicode(mapName);
    QString rscName = "/home/user/GIS/Projects/gisdesigner/examples/Data/testMap/Podolsk/layer/layersc.rsc";
    QByteArray ba1 = QTextCodec::codecForName("KOI8-R")->fromUnicode(rscName);
    std::cout<<"mpName = "<<ba.constData()<<" rName = "<<ba1.constData()<<std::endl;
    HSITE st = mapCreateAndAppendSiteForMap(hmap, ba.constData(), ba1.constData());
    std::cout<<"create map = "<<st<<std::endl;
    ui->viewMap->Repaint();