dimensions.hpp

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//
// (c) Copyright 2014 DESY, Eugen Wintersberger <eugen.wintersberger@desy.de>
//
// This file is part of libpniio.
//
// libpniio 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 2 of the License, or
// (at your option) any later version.
//
// libpniio 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 libpniio.  If not, see <http://www.gnu.org/licenses/>.
// ===========================================================================
//
// Created on: Nov 27, 2014
//     Author: Eugen Wintersberger <eugen.wintersberger@desy.de>
//
#pragma once

#include "node.hpp"

namespace pni{
namespace io{
namespace nx{
namespace xml{
    typedef std::pair<size_t,size_t> index_value_type;

    //------------------------------------------------------------------------
    bool operator<(const index_value_type &lhs,
                   const index_value_type &rhs);

    //------------------------------------------------------------------------
    class dimensions
    {

        private:

            typedef std::vector<index_value_type>  iv_vector;

            //----------------------------------------------------------------
            static node index_value_to_node(size_t index,size_t value);

            //-----------------------------------------------------------------
            static index_value_type index_value_from_node(const node &dim_node);

        public:
            //-----------------------------------------------------------------
            static size_t rank(const node &dim);

            //-----------------------------------------------------------------
            static size_t size(const node &dim);


            //-----------------------------------------------------------------
            static pni::core::shape_t object_from_xml(const node &dims);

            //-----------------------------------------------------------------
            template<typename DTYPE>
            static DTYPE object_from_xml(const node &dims)
            {
                pni::core::shape_t s = object_from_xml(dims);
                return DTYPE(s.begin(),s.end());
            }

            //-----------------------------------------------------------------
            static node object_to_xml(const pni::core::shape_t &s);

            //-----------------------------------------------------------------
            template<typename DTYPE>
            static node object_to_xml(const DTYPE &dim)
            {
                pni::core::shape_t s(dim.begin(),dim.end());
                return object_to_xml(s);
            }

    };


//end of namespace
}
}
}
}