// -*- 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) 2014-2018 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+

/*! \file
  This file declares the class SumCell

  SumCell is the Cell type that represents maxima's <code>sum()</code>,
  <code>lsum</code> and <code>product()</code>
  commands.
*/

#ifndef SUMCELL_H
#define SUMCELL_H

#include "precomp.h"
#include "Cell.h"
#include "ParenCell.h"

class TextCell;

//cppcheck-suppress ctuOneDefinitionRuleViolation
class SumCell : public Cell
{
public:
  /*! \image html OperatorCellGeometry.svg
      \image html SumCellLinearGeometry.svg */
  SumCell(GroupCell *group, Configuration *config,
          std::unique_ptr<Cell> &&under, std::unique_ptr<Cell> &&over,
          std::unique_ptr<Cell> &&base);
  SumCell(GroupCell *group, const SumCell &cell);
  std::unique_ptr<Cell> Copy(GroupCell *group) const override;
  const CellTypeInfo &GetInfo() override;

  size_t GetInnerCellCount() const override { return 10; }
  Cell *GetInnerCell(size_t index) const override {
    switch (index) {
    case 0:
      return m_open.get();
    case 1:
      return m_paren.get();
    case 2:
      return m_comma1.get();
    case 3:
      return m_var.get();
    case 4:
      return m_comma2.get();
    case 5:
      return m_start.get();
    case 6:
      return m_comma3.get();
    case 7:
      return m_close.get();
    case 8:
      return m_over.get();
    case 9:
      return m_under.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 SetAltCopyText(const wxString &text) override { m_altCopyText = text; }
  const wxString &GetAltCopyText() const override { return m_altCopyText; }

  bool BreakUp() const override;
  void SetNextToDraw(Cell *next) const override;
  void Unbreak() const override final;

protected:
  //! What maxima command name corresponds to this cell?
  virtual const wxString GetMaximaCommandName() const;
  //! What matlab command name corresponds to this cell?
  virtual const wxString GetMatlabCommandName() const;
  //! What LaTeX command name corresponds to this cell?
  virtual const wxString GetLaTeXCommandName() const;
  //! What unicode symbol name corresponds to this cell?
  virtual const wxString GetUnicodeSymbol() const;
  //! Returns the data that creates our SVG symbol
  virtual const wxString GetSvgSymbolData() const;
  //! Returns the type our cell has when saving it to .wxmx
  virtual const wxString GetXMLType() const;
  //! How big do we want our svg symbol to be?
  virtual const wxSize GetSymbolSize() const;
  //! The base cell owned by the paren (it's without the paren)
  Cell *Base() const;
  Cell *Over() const {return m_over.get();}
  Cell *Under() const {return m_under.get();}
  
private:
  std::unique_ptr<Cell> MakeStart(Cell *under) const;
  void MakeBreakUpCells();
  const static wxString m_svgSumSign;

  ParenCell *Paren() const;
  //! The displayed base
  Cell *DisplayedBase() const;

  //! Text that should end up on the clipboard if this cell is copied as text.
  wxString m_altCopyText;
  // The pointers below point to inner cells and must be kept contiguous.
  // ** This is the partial 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_paren;
  std::unique_ptr<Cell> m_comma1;
  std::unique_ptr<Cell> m_var;
  std::unique_ptr<Cell> m_comma2;
  std::unique_ptr<Cell> m_start;
  std::unique_ptr<Cell> m_comma3;
  std::unique_ptr<Cell> m_close;
  std::unique_ptr<Cell> m_over;
  std::unique_ptr<Cell> m_under;
  // The pointers above point to inner cells and must be kept contiguous.

  mutable wxSize m_signSize;

//** Bitfield objects (1 bytes)
//**
  void InitBitFields_SumCell()
    { // Keep the initialization order below same as the order
      // of bit fields in this class!
      m_displayParen = true;
    }

  //! Display m_paren if true, or Base() if false
  mutable bool m_displayParen : 1 /* InitBitFields_SumCell */;
};

#endif // SUMCELL_H
