ArrayMemberPointer.h

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/******************************************************************************
 * Copyright (C) 2014 by Ralf Kaestner                                        *
 * ralf.kaestner@gmail.com                                                    *
 *                                                                            *
 * This program is free software; you can redistribute it and/or modify       *
 * it under the terms of the Lesser GNU General Public License as published by*
 * the Free Software Foundation; either version 3 of the License, or          *
 * (at your option) any later version.                                        *
 *                                                                            *
 * This program 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               *
 * Lesser GNU General Public License for more details.                        *
 *                                                                            *
 * You should have received a copy of the Lesser GNU General Public License   *
 * along with this program. If not, see <http://www.gnu.org/licenses/>.       *
 ******************************************************************************/

#ifndef VARIANT_TOPIC_TOOLS_ARRAY_MEMBER_POINTER_H
#define VARIANT_TOPIC_TOOLS_ARRAY_MEMBER_POINTER_H

#include <variant_topic_tools/ArrayTypeTraits.h>
#include <variant_topic_tools/Pointer.h>

namespace variant_topic_tools {
  template <typename T> class ArrayMemberPointer :
    public Pointer<typename type_traits::ArrayType<T>::MemberValueType> {
  public:
    BOOST_STATIC_ASSERT(type_traits::IsArray<T>::value);

    typedef typename type_traits::ArrayType<T>::ValueType ValueType;

    typedef typename type_traits::ArrayType<T>::MemberValueType
      MemberValueType;

    static const size_t NumMembers = type_traits::ArrayType<T>::NumMembers;

    ArrayMemberPointer(ValueType* array = 0, int index = 0);

    ArrayMemberPointer(const Pointer<ValueType>& array, int index);

    ArrayMemberPointer(const ArrayMemberPointer<T>& src);

    ArrayMemberPointer(const Pointer<MemberValueType>& src);

    ~ArrayMemberPointer();

    void setArray(const Pointer<ValueType>& array);

    const Pointer<ValueType>& getArray() const;

    void setIndex(int index);

    size_t getIndex() const;

  protected:
    class Impl :
      public Pointer<MemberValueType>::ImplA {
    public:
      Impl(const Pointer<ValueType>& array = Pointer<ValueType>(), size_t
        index = 0);

      virtual ~Impl();

      MemberValueType* get() const;

      Pointer<ValueType> array;

      int index;
    };
  };
};

#include <variant_topic_tools/ArrayMemberPointer.tpp>

#endif