从QT中的Q_PROPERTY序列化嵌套的用户定义类

面临以下问题：我无法从Q_PROPERTY序列化用户定义的对象我尝试将RegistersSettings类序列化为QDataStream。这个想法是能够将它序列化为文本文件(使用<<运算符)，然后能够读取它(使用>>运算符)。它应该验证从文件中读取的字段是否仍然有效。所以我检查了房产。问题是Q_PROPERTY(QList组MEMBER组)无法按预期工作。看起来创建这样的功能是可能的，但看起来并不那么容易。有人能帮助我们了解如何从Q_PROPERTY序列化用户定义类的常见方法吗？

代码被简化为可读性更强，但主要思想已经到位。

class RegisterGroupSettings:SettingsItem<RegisterGroupSettings>
{
private:
Q_GADGET
Q_PROPERTY(QString name MEMBER name)
Q_PROPERTY(int interval MEMBER interval)
public:
QString name;
int     interval;
};
Q_DECLARE_METATYPE(RegisterGroupSettings)
class RegistersSettings:SettingsItem<RegistersSettings>
{
private:
Q_GADGET
Q_PROPERTY(QList<RegisterGroupSettings> groups MEMBER groups)
Q_PROPERTY(int code MEMBER code)
public:
QList<RegisterGroupSettings> groups;
int code;
};
Q_DECLARE_METATYPE(RegistersSettings)

SettingsItem是统一的助手

template <typename T> class SettingsItem
{
public:
friend QDataStream & operator << (QDataStream &arch, const T & object)
{
const QMetaObject &mo = object.staticMetaObject;
int cnt = mo.propertyCount();
QString prop_name;
QVariant prop_value;
arch << cnt;
while (cnt>0)
{
prop_name = mo.property(cnt-1).name();
prop_value = mo.property(cnt-1).readOnGadget(&object);
arch << prop_name;
arch << prop_value;
cnt--;
}
return arch;
}
friend QDataStream & operator >> (QDataStream &arch, T & object)
{
const QMetaObject &mo = object.staticMetaObject;
int cnt=0;
QString prop_name;
QVariant prop_value;
int prop_index;
arch >> cnt;
while (cnt>0)
{
arch >> prop_name;
arch >> prop_value;
prop_index = mo.indexOfProperty(prop_name.toStdString().c_str());
if (prop_index > -1)
{
mo.property(prop_index).writeOnGadget(&object, prop_value);
}
cnt--;
}
return arch;
}
friend bool operator == (const T &first, const T &second)
{
const QMetaObject &mo = first.staticMetaObject;
int cnt = mo.propertyCount();
QString prop_name;
QVariant oProp_value;
QVariant dProp_value;
while (cnt>0)
{
prop_name = mo.property(cnt-1).name();
oProp_value = mo.property(cnt-1).readOnGadget(&first);
dProp_value = mo.property(cnt-1).readOnGadget(&second);
if (oProp_value == dProp_value)
{
cnt--;
continue;
}
return false;
}
return true;
}
friend bool operator != (const T &first, const T &second)
{
return !( first == second );
}
};