enum.h

#ifndef OOENUM_H
#define OOENUM_H

#include <QStringList>
#include <QTextStream>
#include <QMap>
#include "dobjs_export.h"

typedef QMap<QString, int> NameMap;

//start
class DOBJS_EXPORT Enum {
public:
    virtual const NameMap&  nameMap() const = 0;

    friend DOBJS_EXPORT QTextStream& operator>>(QTextStream& ts,  Enum& pref);
    friend DOBJS_EXPORT QDataStream& operator>>(QDataStream& ds,  Enum& pref);

    Enum(int enumval = 0);
        Enum(const Enum& other);
    virtual ~Enum();

    virtual QString toString() const;

    virtual bool fromString(QString str);

    virtual int intValue() const ;

    bool operator=(int other);
    bool operator=(QString other);

    bool operator==(const Enum& other) const {
        return m_Val == other.m_Val;
    }
    bool operator==(const QString& other) const;
    bool operator!=(const Enum& other) const {
        return m_Val != other.m_Val;
    }
    bool operator<(const Enum& other) const {
        return m_Val < other.m_Val;
    }
    bool operator>(const Enum& other) const {
        return m_Val > other.m_Val;
    }
    QStringList names() const;


protected:
    //end
    void setIntValue(int v) {m_Val = v;}
    static NameMap& initMap(NameMap& nameMap, QStringList nameList, 
                            bool&  initialized, int startIndex = 0);
    //start
    int m_Val;

};

DOBJS_EXPORT QTextStream& operator<<(QTextStream& ts, const Enum& pref);
DOBJS_EXPORT QTextStream& operator>>(QTextStream& ts, Enum& pref);

DOBJS_EXPORT QDataStream& operator<<(QDataStream& ds, const Enum& pref);
DOBJS_EXPORT QDataStream& operator>>(QDataStream& ds, Enum& pref);

//end
#endif