main.cpp

QObject* findItemByName(QList<QObject*> nodes, const QString& name)
{
    for(int i = 0; i < nodes.size(); i++)
    {
        // Node keresése
        if (nodes.at(i) && nodes.at(i)->objectName() == name)
        {
            return nodes.at(i);
        }
        // Gyerekekben keresés
        else if (nodes.at(i) && nodes.at(i)->children().size() > 0)
        {
            QObject* item = findItemByName(nodes.at(i)->children(), name);
            if (item)
                return item;
        }
    }
    return nullptr;
}

QObject* findItemByName(QObject *rootObject, const QString& name)
{
    Q_ASSERT(rootObject != nullptr);

    if (rootObject->objectName() == name)
    {
        return (QObject*)rootObject;
    }
    return findItemByName(rootObject->children(), name);
}