view.hpp

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//
// (c) Copyright 2017 DESY,ESS
//
// This file is part of h5cpp.
//
// 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 ofMERCHANTABILITY
// 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., 51 Franklin Street, Fifth Floor
// Boston, MA  02110-1301 USA
// ===========================================================================
//
// Authors:
//   Eugen Wintersberger <eugen.wintersberger@desy.de>
//   Martin Shetty <martin.shetty@esss.se>
// Created on: Nov 13, 2017
//
#pragma once

#include <h5cpp/dataspace/hyperslab.hpp>
#include <h5cpp/dataspace/dataspace.hpp>
#include <h5cpp/core/windows.hpp>

namespace hdf5 {
namespace dataspace {

class DLL_EXPORT View {
 public:
  View() = default;

  View(const View &) = default;

  explicit View(const Dataspace &space);

  View(const Dataspace &space, const SelectionList &selections);

  View(const Dataspace &space, const Hyperslab &selection);

  void operator()(const SelectionList &selections) const;

  void operator()(const Hyperslab &slab) const;

  size_t size() const;

  explicit operator hid_t() const {
    return static_cast<hid_t>(space_);
  }

 private:
  Dataspace space_;

  void clear() const;

  void apply(const SelectionList &selections) const;
};

} // namespace dataspace
} // namespace hdf5