cxEnumConverter.h

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/*=========================================================================
This file is part of CustusX, an Image Guided Therapy Application.

Copyright (c) 2008-2014, SINTEF Department of Medical Technology
All rights reserved.

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modification, are permitted provided that the following conditions are met:

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   this list of conditions and the following disclaimer.

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   this list of conditions and the following disclaimer in the documentation 
   and/or other materials provided with the distribution.

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   may be used to endorse or promote products derived from this software 
   without specific prior written permission.

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=========================================================================*/

#ifndef CXENUMCONVERTER_H_
#define CXENUMCONVERTER_H_

#include "cxResourceExport.h"

#include <string>
#include <boost/array.hpp>
#include <boost/algorithm/string.hpp>
#include <QString>
#include "cxTypeConversions.h"

template<class ENUM, unsigned COUNT>
class EnumConverter
{
public:
        static boost::array<QString, COUNT> mText;

        static QString enum2string(const ENUM& val)
        {
                if (unsigned(val)<mText.size())
                        return mText[val];
                return "UNDEFINED";
        }

        static ENUM string2enum(const QString& val)
        {
                for (unsigned i=0; i<mText.size(); ++i)
                        if (mText[i].toUpper()==val.toUpper())
                                return static_cast<ENUM>(i);
                return static_cast<ENUM>(COUNT);
        }
};

template<class ENUM>
ENUM string2enum(const QString& val);

template<class ENUM>
QString enum2string(const ENUM& val);

#define SNW_DECLARE_ENUM_STRING_CONVERTERS(EXPORT, NS, ENUM_NAME)   \
namespace NS                                                         \
{                                                                    \
    EXPORT std::ostream& operator<<(std::ostream& s, const ENUM_NAME& val); \
}                                                                    \
template<>                                                           \
EXPORT QString enum2string<NS::ENUM_NAME>(const NS::ENUM_NAME& val); \
template<>                                                           \
EXPORT NS::ENUM_NAME string2enum<NS::ENUM_NAME>(const QString& val); \

//-----------------------------------------------------------------

#define SNW_DEFINE_ENUM_STRING_CONVERTERS_BEGIN(NS, ENUM_NAME, ENUM_SIZE)                  \
template<>                                                                                 \
boost::array<QString, NS::ENUM_SIZE> EnumConverter<NS::ENUM_NAME,NS::ENUM_SIZE>::mText = \
{                                                                                          \

#define SNW_DEFINE_ENUM_STRING_CONVERTERS_END(NS, ENUM_NAME, ENUM_SIZE)     \
};                                                                          \
template<> QString enum2string<NS::ENUM_NAME>(const NS::ENUM_NAME& val) \
{                                                                           \
        return EnumConverter<NS::ENUM_NAME, NS::ENUM_SIZE>::enum2string(val);   \
}                                                                           \
template<> NS::ENUM_NAME string2enum<NS::ENUM_NAME>(const QString& val) \
{                                                                           \
        return EnumConverter<NS::ENUM_NAME, NS::ENUM_SIZE>::string2enum(val);   \
}                                                                           \
namespace NS                                                                \
{                                                                           \
        std::ostream& operator<<(std::ostream& s, const ENUM_NAME& val)         \
        {                                                                       \
                s << enum2string(val);                                              \
                return s;                                                           \
        }                                                                       \
}                                                                           \
// --------------------------------------------------------

#endif /*CXENUMCONVERTER_H_*/