Best way of creating an XML node from an object

[xtal256]

I want my application to be able to save some of it's objects to an XML file. I have written the code below, but i'm not sure if this is the best way to do it. Surely working with XML should be simpler.
By that i mean that the code i have is very repetitive as i have to create each node as well as the inner text node. Are there helper functions to simplify adding basic elements like this?

// Creates and returns an XML node that represents SomeObject
QDomElement SomeObject::asXmlNode(QDomDocument& doc) {
    QDomElement tempNode;
    QDomElement root = doc.createElement("someobject");
 
    tempNode = doc.createElement("variable1");
    tempNode.appendChild(doc.createTextNode(variable1));
    root.appendChild(tempNode);
 
    tempNode = doc.createElement("variable2");
    tempNode.appendChild(doc.createTextNode(variable2));
    root.appendChild(tempNode);
 
    tempNode = doc.createElement("rectangle");
    tempNode .setAttribute("x", getDimensions().x());
    tempNode .setAttribute("y", getDimensions().y());
    tempNode .setAttribute("width", getDimensions().width());
    tempNode .setAttribute("height", getDimensions().height());
    root.appendChild(tempNode);
 
    // ... etc
 
    return root;
}
 
// And elsewhere, write the xml node to a file
QDomDocument xmlDoc;
xmlDoc.appendChild(object->asXmlNode(xmlDoc));
 
QTextStream stream(&file);
stream << xmlDoc.toString(4);

// Creates and returns an XML node that represents SomeObject
QDomElement SomeObject::asXmlNode(QDomDocument& doc) {
    QDomElement tempNode;
    QDomElement root = doc.createElement("someobject");

    tempNode = doc.createElement("variable1");
    tempNode.appendChild(doc.createTextNode(variable1));
    root.appendChild(tempNode);

    tempNode = doc.createElement("variable2");
    tempNode.appendChild(doc.createTextNode(variable2));
    root.appendChild(tempNode);

    tempNode = doc.createElement("rectangle");
    tempNode .setAttribute("x", getDimensions().x());
    tempNode .setAttribute("y", getDimensions().y());
    tempNode .setAttribute("width", getDimensions().width());
    tempNode .setAttribute("height", getDimensions().height());
    root.appendChild(tempNode);

    // ... etc

    return root;
}

// And elsewhere, write the xml node to a file
QDomDocument xmlDoc;
xmlDoc.appendChild(object->asXmlNode(xmlDoc));
    
QTextStream stream(&file);
stream << xmlDoc.toString(4);

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