idxpair.h

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#pragma once

/*+
________________________________________________________________________

 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        Bert
 Date:          Oct 2013
________________________________________________________________________

-*/

#include "basicmod.h"
#include "gendefs.h"
#ifdef __win__
# include <tuple>
#endif
#include <utility>


typedef std::pair<Index_Type,Index_Type> Index_Type_Pair;
typedef IdxPair IdxPairDelta;
typedef IdxPair IdxPairStep;


mExpClass(Basic) IdxPair : public Index_Type_Pair
{
public:

    typedef Index_Type          IdxType;

                                IdxPair() : Index_Type_Pair(0,0)        {}
                                IdxPair( IdxType f, IdxType s )
                                    : Index_Type_Pair(f,s)              {}
    inline bool                 operator ==(const IdxPair&) const;
    inline bool                 operator !=( const IdxPair& oth ) const
                                                { return !(*this == oth); }

    bool                        isUdf() const   { return *this == udf(); }
    void                        setUdf()        { *this = udf(); }
    static const IdxPair&       udf();

    inline IdxType&             operator[]( int idx )
                                { return idx ? second : first; }
    inline IdxType              operator[]( int idx ) const
                                { return idx ? second : first; }

    const char*                 getUsrStr(const char* prefx,const char* sep,
                                    const char* postfx,bool only2nd) const;
    bool                        parseUsrStr(const char* str,const char* prefx,
                                    const char* sep,const char* postfx);
};



inline bool IdxPair::operator ==( const IdxPair& oth ) const
{
    return first == oth.first && second == oth.second;
}