// -*- mode: c++; c-file-style: "linux"; c-basic-offset: 2; indent-tabs-mode: nil -*-
//
//  Copyright (C) 2004-2015 Andrej Vodopivec <andrej.vodopivec@gmail.com>
//            (C) 2014-2016 Gunter Königsmann <wxMaxima@physikbuch.de>
//
//  This program 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.
//
//  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
//  GNU General Public License for more details.
//
//
//  You should have received a copy of the GNU General Public License
//  along with this program; if not, write to the Free Software
//  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
//
//  SPDX-License-Identifier: GPL-2.0+

#ifndef DIFFCELL_H
#define DIFFCELL_H

#include "Cell.h"
#include <memory>

class DiffCell final : public Cell
{
public:
  /*! \image html DiffCellGeometry.svg
      \image html DiffCellPartialGeometry.svg
      \image html DiffCellLinearGeometry.svg */
  DiffCell(GroupCell *group, Configuration *config,
 std::unique_ptr<Cell> &&base,
           std::unique_ptr<Cell> &&diff);
  DiffCell(GroupCell *group, const DiffCell &cell);
  std::unique_ptr<Cell> Copy(GroupCell *group) const override;
  const CellTypeInfo &GetInfo() override;

  size_t GetInnerCellCount() const override { return 5; }
  Cell *GetInnerCell(size_t index) const override {
    switch (index) {
    case 0:
      return m_open.get();
    case 1:
      return m_baseCell.get();
    case 2:
      return m_comma.get();
    case 3:
      return m_diffCell.get();
    case 4:
      return m_close.get();
    default:
      return nullptr;
    }
  }

  void Recalculate(const AFontSize fontsize) const override;

  using Cell::SetCurrentPoint;
  void SetCurrentPoint(wxPoint point) const override;
  void Draw(wxDC *dc, wxDC *antialiassingDC) override;

  wxString ToMathML() const override;
  wxString ToMatlab() const override;
  wxString ToOMML() const override;
  wxString ToString() const override;
  wxString ToTeX() const override;
  wxString ToXML() const override;

  void SetNextToDraw(Cell *next) const override;

  bool BreakUp() const override;

private:
  void MakeBreakupCells();

  // The pointers below point to inner cells and must be kept contiguous.
  // ** This is the draw list order. All pointers must be the same:
  // ** either Cell * or std::unique_ptr<Cell>. NO OTHER TYPES are allowed.
  std::unique_ptr<Cell> m_open;
  std::unique_ptr<Cell> m_baseCell;
  std::unique_ptr<Cell> m_comma;
  std::unique_ptr<Cell> m_diffCell;
  std::unique_ptr<Cell> m_close;
  // The pointers above point to inner cells and must be kept contiguous.

//** Bitfield objects (0 bytes)
//**
  static void InitBitFields_DiffCell()
    { // Keep the initialization order below same as the order
      // of bit fields in this class!
    }
};

#endif // DIFFCELL_H
