posidxpair.h

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#ifndef posidxpair_h
#define posidxpair_h

/*+
________________________________________________________________________

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

-*/

#include "basicmod.h"
#include "idxpair.h"


namespace Pos
{

typedef ::Index_Type_Pair Index_Type_Pair;
typedef IdxPair IdxPairDelta;
typedef IdxPair IdxPairStep;


mExpClass(Basic) IdxPair : public ::IdxPair
{
public:

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

                                // aliases for first
    inline IdxType&             inl()           { return first; }
    inline IdxType&             lineNr()        { return first; }
    inline IdxType&             row()           { return first; }

                                // aliases for second
    inline IdxType&             crl()           { return second; }
    inline IdxType&             trcNr()         { return second; }
    inline IdxType&             col()           { return second; }

                                // const versions of the aliases
    inline IdxType              inl() const     { return first; }
    inline IdxType              crl() const     { return second; }
    inline IdxType              lineNr() const  { return first; }
    inline IdxType              trcNr() const   { return second; }
    inline IdxType              row() const     { return first; }
    inline IdxType              col() const     { return second; }

    inline od_int64             toInt64() const;
    inline static IdxPair       fromInt64(od_int64);
    od_int64                    sqDistTo(const IdxPair&) const;
    bool                        isNeighborTo(const IdxPair&,
                                 const IdxPairStep&,bool conn8=true) const;

    static const IdxPair&       udf();
};



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


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


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


inline od_int64 IdxPair::toInt64() const
{
    return (((od_uint64)first) << 32) + (((od_uint64)second) & 0xFFFFFFFF);
}


inline IdxPair IdxPair::fromInt64( od_int64 i64 )
{
    return IdxPair( (IdxType)(i64 >> 32), (IdxType)(i64 & 0xFFFFFFFF) );
}


} // namespace Pos

#endif