SortableListDRGEP.H

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/*---------------------------------------------------------------------------*\
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  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
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-------------------------------------------------------------------------------
    Copyright (C) 2016 OpenFOAM Foundation
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Class
    Foam::SortableListDRGEP
 
Description
    A list that is sorted upon construction or when explicitly requested
    with the sort() method.
 
SourceFiles
    SortableListDRGEP.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef SortableListDRGEP_H
#define SortableListDRGEP_H
 
#include "labelList.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                    Class SortableListDRGEP Declaration
\*---------------------------------------------------------------------------*/
 
template <class Type>
class SortableListDRGEP
:
    public List<Type>
{
    // Private data
 
        //- Original indices
        labelList indices_;
 
 
public:
 
    // Public classes
 
        //- Less function class used by the sort function
        class less
        {
            const UList<Type>& values_;
 
        public:
 
            less(const UList<Type>& values)
            :
                values_(values)
            {}
 
            bool operator()(const label a, const label b)
            {
                return values_[a] < values_[b];
            }
        };
 
 
    // Constructors
 
        //- Construct from List, sorting the elements. Starts with indices set
        //  to index in argument
        explicit SortableListDRGEP(const List<Type>&);
 
        //- Construct given size. Sort later on.
        explicit SortableListDRGEP(const label size);
 
        //- Construct given size and initial value. Sort later on.
        SortableListDRGEP(const label size, const Type&);
 
        //- Construct as copy.
        SortableListDRGEP(const SortableListDRGEP<Type>&);
 
 
    // Member Functions
 
        //- Return the list of sorted indices. Updated every sort.
        const labelList& indices() const
        {
            return indices_;
        }
 
        //- Size the list. If grow can cause undefined indices (until next sort)
        void setSize(const label);
 
        //- Sort the list (if changed after construction time)
        void sort();
 
        //- Partial sort the list (if changed after construction time)
        void partialSort(int M);
 
        //- Sort the list (if changed after construction time)
        void stableSort();
 
 
    // Member Operators
 
        void operator=(const SortableListDRGEP<Type>&);
 
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "SortableListDRGEP.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //