+#include <QTextStream>
+#include <QVariant>
+
+class SignedId
+{
+protected:
+ qint32 id;
+
+public:
+ inline SignedId(int _id = 0) { id = _id; }
+ inline qint32 toInt() const { return id; }
+ inline bool isValid() const { return id > 0; }
+
+ inline bool operator==(const SignedId& other) const { return id == other.id; }
+ inline bool operator!=(const SignedId& other) const { return id != other.id; }
+ inline bool operator<(const SignedId& other) const { return id < other.id; }
+ inline bool operator<=(const SignedId& other) const { return id <= other.id; }
+ inline bool operator>(const SignedId& other) const { return id > other.id; }
+ inline bool operator>=(const SignedId& other) const { return id >= other.id; }
+ inline bool operator==(int i) const { return id == i; }
+ inline bool operator!=(int i) const { return id != i; }
+ inline bool operator<(int i) const { return id < i; }
+ inline bool operator>(int i) const { return id > i; }
+ inline bool operator<=(int i) const { return id <= i; }
+
+ inline SignedId operator++(int)
+ {
+ id++;
+ return *this;
+ }
+ // inline operator int() const { return toInt(); } // no automatic conversion!
+
+ friend QDataStream& operator>>(QDataStream& in, SignedId& signedId);
+};
+
+inline QDataStream& operator<<(QDataStream& out, const SignedId& signedId)
+{
+ out << signedId.toInt();
+ return out;
+}
+inline QDataStream& operator>>(QDataStream& in, SignedId& signedId)
+{
+ in >> signedId.id;
+ return in;
+}
+inline QTextStream& operator<<(QTextStream& out, const SignedId& signedId)
+{
+ out << QString::number(signedId.toInt());
+ return out;
+}
+inline QDebug operator<<(QDebug dbg, const SignedId& signedId)
+{
+ dbg.space() << signedId.toInt();
+ return dbg;
+}
+inline uint qHash(const SignedId& id)
+{
+ return qHash(id.toInt());
+}
+
+class SignedId64
+{
+protected:
+ qint64 id;
+
+public:
+ inline SignedId64(qint64 _id = 0) { id = _id; }
+ inline qint64 toQint64() const { return id; }
+ inline bool isValid() const { return id > 0; }
+
+ inline bool operator==(const SignedId64& other) const { return id == other.id; }
+ inline bool operator!=(const SignedId64& other) const { return id != other.id; }
+ inline bool operator<(const SignedId64& other) const { return id < other.id; }
+ inline bool operator<=(const SignedId64& other) const { return id <= other.id; }
+ inline bool operator>(const SignedId64& other) const { return id > other.id; }
+ inline bool operator>=(const SignedId64& other) const { return id >= other.id; }
+ inline bool operator==(qint64 i) const { return id == i; }
+ inline bool operator!=(qint64 i) const { return id != i; }
+ inline bool operator<(qint64 i) const { return id < i; }
+ inline bool operator>(qint64 i) const { return id > i; }
+ inline bool operator<=(qint64 i) const { return id <= i; }
+
+ inline SignedId64 operator++(int)
+ {
+ id++;
+ return *this;
+ }
+ // inline operator int() const { return toQint64(); } // no automatic conversion!
+
+ friend QDataStream& operator>>(QDataStream& in, SignedId64& signedId);
+};
+
+QDataStream& operator<<(QDataStream& out, const SignedId64& signedId);
+QDataStream& operator>>(QDataStream& in, SignedId64& signedId);
+inline QTextStream& operator<<(QTextStream& out, const SignedId64& signedId)
+{
+ out << QString::number(signedId.toQint64());
+ return out;
+}
+inline QDebug operator<<(QDebug dbg, const SignedId64& signedId)
+{
+ dbg.space() << signedId.toQint64();
+ return dbg;
+}
+inline uint qHash(const SignedId64& id)
+{
+ return qHash(id.toQint64());
+}
+
+struct UserId : public SignedId
+{
+ inline UserId(int _id = 0)
+ : SignedId(_id)
+ {}
+ // inline operator QVariant() const { return QVariant::fromValue<UserId>(*this); } // no automatic conversion!
+};
+
+struct MsgId : public SignedId64
+{
+ inline MsgId(qint64 _id = 0)
+ : SignedId64(_id)
+ {}
+ // inline operator QVariant() const { return QVariant::fromValue<MsgId>(*this); }
+};
+
+struct BufferId : public SignedId
+{
+ inline BufferId(int _id = 0)
+ : SignedId(_id)
+ {}
+ // inline operator QVariant() const { return QVariant::fromValue<BufferId>(*this); }
+};
+
+struct NetworkId : public SignedId
+{
+ inline NetworkId(int _id = 0)
+ : SignedId(_id)
+ {}
+ // inline operator QVariant() const { return QVariant::fromValue<NetworkId>(*this); }
+};
+
+struct IdentityId : public SignedId
+{
+ inline IdentityId(int _id = 0)
+ : SignedId(_id)
+ {}
+ // inline operator QVariant() const { return QVariant::fromValue<IdentityId>(*this); }
+};
+
+struct AccountId : public SignedId
+{
+ inline AccountId(int _id = 0)
+ : SignedId(_id)
+ {}
+};
+
+Q_DECLARE_METATYPE(UserId)
+Q_DECLARE_METATYPE(MsgId)
+Q_DECLARE_METATYPE(BufferId)
+Q_DECLARE_METATYPE(NetworkId)
+Q_DECLARE_METATYPE(IdentityId)
+Q_DECLARE_METATYPE(AccountId)