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/*
 * This file is part of the GROMACS molecular simulation package.
 *
 * Copyright (c) 2010,2012,2013,2014, by the GROMACS development team, led by
 * Mark Abraham, David van der Spoel, Berk Hess, and Erik Lindahl,
 * and including many others, as listed in the AUTHORS file in the
 * top-level source directory and at http://www.gromacs.org.
 *
 * GROMACS 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.
 *
 * GROMACS 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 GROMACS; if not, see
 * http://www.gnu.org/licenses, or write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA.
 *
 * If you want to redistribute modifications to GROMACS, please
 * consider that scientific software is very special. Version
 * control is crucial - bugs must be traceable. We will be happy to
 * consider code for inclusion in the official distribution, but
 * derived work must not be called official GROMACS. Details are found
 * in the README & COPYING files - if they are missing, get the
 * official version at http://www.gromacs.org.
 *
 * To help us fund GROMACS development, we humbly ask that you cite
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 */
/*! \file
 * \brief
 * Declares common types used in selections.
 *
 * \author Teemu Murtola <teemu.murtola@gmail.com>
 * \ingroup module_selection
 */
#ifndef GMX_SELECTION_SELECTIONENUMS_H
#define GMX_SELECTION_SELECTIONENUMS_H

#include "gromacs/utility/flags.h"

/*! \brief
 * Defines the type of covered fraction.
 *
 * \inpublicapi
 */
typedef enum
{
    CFRAC_NONE,         /**< No covered fraction (everything covered). */
    CFRAC_SOLIDANGLE    /**< Fraction of a solid (3D) angle covered. */
} e_coverfrac_t;

namespace gmx
{

/*! \cond internal */
/*! \brief
 * Flags for options.
 *
 * These flags are not part of the public interface, even though they are in an
 * installed header.  They are needed in the implementation of SelectionOption.
 */
enum SelectionFlag
{
    efSelection_OnlyStatic              = 1<<0,
    efSelection_OnlyAtoms               = 1<<1,
    //! Whether ::POS_MASKONLY should be used for output position evaluation.
    efSelection_DynamicMask             = 1<<2,
    //! If set, unconditionally empty selections result in compilation errors.
    efSelection_DisallowEmpty           = 1<<3,
    //! Whether velocities of output positions should be evaluated.
    efSelection_EvaluateVelocities      = 1<<5,
    //! Whether forces on output positions should be evaluated.
    efSelection_EvaluateForces          = 1<<6,
};

//! Holds a collection of ::SelectionFlag values.
typedef FlagsTemplate<SelectionFlag> SelectionFlags;
//! \endcond

}

#endif