/* *****************************************************************
    MESQUITE -- The Mesh Quality Improvement Toolkit

    Copyright 2006 Sandia National Laboratories.  Developed at the
    University of Wisconsin--Madison under SNL contract number
    624796.  The U.S. Government and the University of Wisconsin
    retain certain rights to this software.

    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, or (at your option) any later version.

    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
    (lgpl.txt) along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    (2006) kraftche@cae.wisc.edu

  ***************************************************************** */

/** \file ElementPMeanP.hpp
 *  \brief
 *  \author Jason Kraftcheck
 */

#ifndef MSQ_ELEMENT_PMEAN_P_HPP
#define MSQ_ELEMENT_PMEAN_P_HPP

#include "Mesquite.hpp"
#include "PMeanPMetric.hpp"
#include "ElementQM.hpp"

namespace MBMesquite
{

class ElemSampleQM;

class ElementPMeanP : public ElementQM, public PMeanPMetric
{
  public:
    MESQUITE_EXPORT ElementPMeanP( double p, ElemSampleQM* metric );

    MESQUITE_EXPORT virtual ~ElementPMeanP();

    MESQUITE_EXPORT ElemSampleQM* get_quality_metric() const
    {
        return mMetric;
    }

    MESQUITE_EXPORT virtual std::string get_name() const;

    MESQUITE_EXPORT virtual int get_negate_flag() const;

    MESQUITE_EXPORT virtual bool evaluate( PatchData& pd, size_t handle, double& value, MsqError& err );

    MESQUITE_EXPORT virtual bool evaluate_with_gradient( PatchData& pd, size_t handle, double& value,
                                                         std::vector< size_t >& indices,
                                                         std::vector< Vector3D >& gradient, MsqError& err );

    MESQUITE_EXPORT virtual bool evaluate_with_Hessian( PatchData& pd, size_t handle, double& value,
                                                        std::vector< size_t >& indices,
                                                        std::vector< Vector3D >& gradient,
                                                        std::vector< Matrix3D >& Hessian, MsqError& err );

    MESQUITE_EXPORT virtual bool evaluate_with_Hessian_diagonal( PatchData& pd, size_t handle, double& value,
                                                                 std::vector< size_t >& indices,
                                                                 std::vector< Vector3D >& gradient,
                                                                 std::vector< SymMatrix3D >& Hessian_diagonal,
                                                                 MsqError& err );

  private:
    ElemSampleQM* mMetric;
    mutable std::vector< size_t > mHandles;
};

}  // namespace MBMesquite

#endif
