bool writeXmlFile(QIODevice &device, const QSettings::SettingsMap &map)
{
QXmlStreamWriter xmlWriter(&device);
xmlWriter.setAutoFormatting(true);
xmlWriter.writeStartDocument();
xmlWriter.writeStartElement("Settings");
QStringList prev_elements;
QSettings::SettingsMap::ConstIterator map_i;
// Alle Elemente der Map durchlaufen
for (map_i = map.begin(); map_i != map.end(); map_i++) {
QStringList elements = map_i.key().split("/");
int x = 0;
// Zu schließende Elemente ermitteln
while (x < prev_elements.size() && elements.at(x) == prev_elements.at(x)) {
x++;
}
// Elemente schließen
for (int i = prev_elements.size() - 1; i >= x; i--) {
xmlWriter.writeEndElement();
}
// Elemente öffnen
for (int i = x; i < elements.size(); i++) {
xmlWriter.writeStartElement(elements.at(i));
}
// Wert eintragen
xmlWriter.writeCharacters(map_i.value().toString());
prev_elements = elements;
}
// Noch offene Elemente schließen
for (int i = 0; i < prev_elements.size(); i++) {
xmlWriter.writeEndElement();
}
xmlWriter.writeEndElement();
xmlWriter.writeEndDocument();
return true;
}
static void writeGroup( const QString &groupKey, YAML::Emitter &out,
SettingsIterator &it, const QSettings::SettingsMap &map )
{
out << YAML::BeginMap;
int groupKeyLen = groupKey.size();
while(it != map.end())
{
QString key( it.key() );
if (!key.startsWith(groupKey)) break;
int i_separ = key.indexOf("/", groupKeyLen);
if (i_separ != -1) {
// There is child nodes
key.truncate( i_separ + 1 );
QString yamlKey(key);
yamlKey.remove(0, groupKeyLen);
yamlKey.chop(1);
out << YAML::Key << yamlKey.toStdString();
out << YAML::Value;
writeGroup( key, out, it, map );
}
else
{
// There is no child nodes
key.remove(0, groupKeyLen);
out << YAML::Key << key.toStdString();
out << YAML::Value;
writeValue( it.value(), out );
++it;
}
}
out << YAML::EndMap;
}