//  SMESH SMESH : implementaion of SMESH idl descriptions
//
//  Copyright (C) 2003  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
//  CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS 
// 
//  This library is free software; you can redistribute it and/or 
//  modify it under the terms of the GNU Lesser General Public 
//  License as published by the Free Software Foundation; either 
//  version 2.1 of the License. 
// 
//  This library 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 
//  Lesser General Public License for more details. 
// 
//  You should have received a copy of the GNU Lesser General Public 
//  License along with this library; if not, write to the Free Software 
//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA 
// 
//  See http://www.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org 
//
//
//
//  File   : StdMeshers_Regular_1D.hxx
//           Moved here from SMESH_Regular_1D.hxx
//  Author : Paul RASCLE, EDF
//  Module : SMESH
//  $Header$

#ifndef _SMESH_REGULAR_1D_HXX_
#define _SMESH_REGULAR_1D_HXX_

#include "SMESH_1D_Algo.hxx"

class TopoDS_Edge;

class StdMeshers_Regular_1D:
  public SMESH_1D_Algo
{
public:
  StdMeshers_Regular_1D(int hypId, int studyId, SMESH_Gen* gen);
  virtual ~StdMeshers_Regular_1D();

  virtual bool CheckHypothesis(SMESH_Mesh& aMesh,
                               const TopoDS_Shape& aShape,
                               SMESH_Hypothesis::Hypothesis_Status& aStatus);

  virtual bool Compute(SMESH_Mesh& aMesh,
		       const TopoDS_Shape& aShape);

  virtual const std::list <const SMESHDS_Hypothesis *> &
    GetUsedHypothesis(SMESH_Mesh & aMesh, const TopoDS_Shape & aShape);

  ostream & SaveTo(ostream & save);
  istream & LoadFrom(istream & load);
  friend ostream & operator << (ostream & save, StdMeshers_Regular_1D & hyp);
  friend istream & operator >> (istream & load, StdMeshers_Regular_1D & hyp);

protected:

  bool computeInternalParameters (const TopoDS_Edge&    theEdge,
                                  std::list< double > & theParameters,
                                  const bool            theReverse) const;

  enum HypothesisType { LOCAL_LENGTH, NB_SEGMENTS, BEG_END_LENGTH, DEFLECTION, ARITHMETIC_1D, NONE };

  enum ValueIndex {
    NB_SEGMENTS_IND  = 0,
    SCALE_FACTOR_IND = 1,
    BEG_LENGTH_IND   = 0,
    END_LENGTH_IND   = 1,
    DEFLECTION_IND   = 0
    };

  HypothesisType _hypType;

  double _value[2];

  // a source of propagated hypothesis, is set by CheckHypothesis()
  // always called before Compute()
  TopoDS_Shape _mainEdge;
};

#endif