/* -*- C++ -*-

  *

  * This file is a part of LEMON, a generic C++ optimization library

  *

  * Copyright (C) 2003-2007

  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

  * (Egervary Research Group on Combinatorial Optimization, EGRES).

  *

  * Permission to use, modify and distribute this software is granted

  * provided that this copyright notice appears in all copies. For

  * precise terms see the accompanying LICENSE file.

  *

  * This software is provided "AS IS" with no warranty of any kind,

  * express or implied, and with no claim as to its suitability for any

  * purpose.

  *

  */

 #ifndef LEMON_LP_SOPLEX_H

 #define LEMON_LP_SOPLEX_H

 ///\file

 ///\brief Header of the LEMON-SOPLEX lp solver interface.

 #include <vector>

 #include <string>

 #include <lemon/lp_base.h>

 // Forward declaration

 namespace soplex {

   class SoPlex;

 }

 namespace lemon {

   /// \ingroup lp_group

   ///

   /// \brief Interface for the SOPLEX solver

   /// 

   /// This class implements an interface for the SoPlex LP solver.

   /// The SoPlex library is an object oriented lp solver library

   /// developed at the Konrad-Zuse-Zentrum für Informationstechnik

   /// Berlin (ZIB). You can find detailed information about it at the

   /// <tt>http://soplex.zib.de</tt> address.

   class LpSoplex :virtual public LpSolverBase {

   protected:

     _lp_bits::RelocateIdHandler relocateIdHandler;

     soplex::SoPlex* soplex;

     bool solved;

     std::vector<std::string> colNames;

     std::map<std::string, int> invColNames;

     std::vector<Value> primal_value;

     std::vector<Value> dual_value;

   public:

     typedef LpSolverBase Parent;

     /// \e

     LpSoplex();

     /// \e

     ~LpSoplex();

   protected:

     virtual LpSolverBase &_newLp();

     virtual LpSolverBase &_copyLp();

     virtual int _addCol();

     virtual int _addRow();

     virtual void _eraseCol(int i);

     virtual void _eraseRow(int i);

     virtual void _getColName(int col, std::string & name) const;

     virtual void _setColName(int col, const std::string & name);

     virtual int _colByName(const std::string& name) const;

     virtual void _setRowCoeffs(int i, ConstRowIterator b, ConstRowIterator e);

     virtual void _getRowCoeffs(int i, RowIterator b) const;

     virtual void _setColCoeffs(int i, ConstColIterator b, ConstColIterator e);

     virtual void _getColCoeffs(int i, ColIterator b) const;

     virtual void _setCoeff(int row, int col, Value value);

     virtual Value _getCoeff(int row, int col) const;

     virtual void _setColLowerBound(int i, Value value);

     virtual Value _getColLowerBound(int i) const;

     virtual void _setColUpperBound(int i, Value value);

     virtual Value _getColUpperBound(int i) const;

     virtual void _setRowBounds(int i, Value lower, Value upper);

     virtual void _getRowBounds(int i, Value &lower, Value &upper) const;

     virtual void _setObjCoeff(int i, Value obj_coef);

     virtual Value _getObjCoeff(int i) const;

     virtual void _clearObj();

     virtual SolveExitStatus _solve();

     virtual Value _getPrimal(int i) const;

     virtual Value _getDual(int i) const;

     virtual Value _getPrimalValue() const;

     virtual bool _isBasicCol(int i) const;

     virtual SolutionStatus _getPrimalStatus() const;

     virtual SolutionStatus _getDualStatus() const;

     virtual ProblemTypes _getProblemType() const;

     virtual void _setMax();

     virtual void _setMin();

     virtual bool _isMax() const;

   };

 } //END OF NAMESPACE LEMON

 #endif //LEMON_LP_SOPLEX_H