// -*- mode: c++; c-file-style: "linux"; c-basic-offset: 2; indent-tabs-mode:
// nil -*-
//
//  Copyright (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 defines the class BoxCell

  BoxCell is the Cell type that represents the field that represents the
  box() command.
*/

#include <utility>
#include <memory>
#include "BoxCell.h"
#include "CellImpl.h"

BoxCell::BoxCell(GroupCell *group, Configuration *config,
                 std::unique_ptr<Cell> &&inner)
  : Cell(group, config), m_innerCell(std::move(inner)) {
  InitBitFields_BoxCell();
  SetStyle(TS_VARIABLE);
  MakeBreakupCells();
}

BoxCell::BoxCell(GroupCell *group, const BoxCell &cell)
  : BoxCell(group, cell.m_configuration,
            CopyList(group, cell.m_innerCell.get())) {
  CopyCommonData(cell);
  MakeBreakupCells();
}

DEFINE_CELL(BoxCell)

void BoxCell::MakeBreakupCells() {
  if (m_open)
    return;
  m_open =
    std::make_unique<TextCell>(m_group, m_configuration, wxS("box("));
  static_cast<TextCell &>(*m_open).DontEscapeOpeningParenthesis();
  m_open->SetStyle(TS_FUNCTION);
  m_close = std::make_unique<TextCell>(m_group, m_configuration, wxS(")"));
}

void BoxCell::Recalculate(AFontSize fontsize) const {
  bool changed = false;
  changed |= m_innerCell->RecalculateList(fontsize);
  changed |= m_open->RecalculateList(fontsize);
  changed |= m_close->RecalculateList(fontsize);

  if (changed || NeedsRecalculation(fontsize)) {
    Cell::Recalculate(fontsize);

    if (!IsBrokenIntoLines()) {
      m_width = m_innerCell->SumOfWidths() + Scale_Px(8);
      m_height = m_innerCell->GetHeightList() + Scale_Px(8);
      m_center = m_innerCell->GetCenterList() + Scale_Px(4);
    } else {
      // The BoxCell itself isn't displayed if it is broken into lines.
      // instead m_open, m_innerCell and m_close are => We can set our size to 0
      // in this case.
      m_width = 0;
      m_height = 0;
      m_center = 0;
    }
  }
}

void BoxCell::SetCurrentPoint(wxPoint point) const {
  Cell::SetCurrentPoint(point);
  if (IsBrokenIntoLines())
    return;

  wxPoint in;
  in.x = point.x + Scale_Px(4);
  in.y = point.y;
  m_innerCell->SetCurrentPointDrawList(in);
}

void BoxCell::Draw(wxDC *dc, wxDC *antialiassingDC) {
  Cell::Draw(dc, antialiassingDC);
  if (DrawThisCell()) {
    wxPoint point = GetCurrentPoint();
    SetPen(dc);
    m_innerCell->DrawList(dc, antialiassingDC);

    dc->DrawLine(
                 point.x + Scale_Px(2),
                 point.y - m_center + m_height - Scale_Px(2),
                 point.x + m_width - Scale_Px(2) - 1,
                 point.y - m_center + m_height - Scale_Px(2)
                 );
    dc->DrawLine(
                 point.x + Scale_Px(2),
                 point.y - m_center + Scale_Px(2),
                 point.x + m_width - Scale_Px(2) - 1,
                 point.y - m_center + Scale_Px(2)
                 );
    dc->DrawLine(
                 point.x + Scale_Px(2),
                 point.y - m_center + m_height - Scale_Px(2),
                 point.x + Scale_Px(2),
                 point.y - m_center + Scale_Px(2)
                 );
    dc->DrawLine(
                 point.x + m_width - Scale_Px(2) - 1,
                 point.y - m_center + Scale_Px(2),
                 point.x + m_width - Scale_Px(2) - 1,
                 point.y - m_center + m_height - Scale_Px(2)
                 );
  }
}

wxString BoxCell::ToString() const {
  if (IsBrokenIntoLines())
    return wxEmptyString;
  else
    return wxS("box(") + m_innerCell->ListToString() + wxS(")");
}

wxString BoxCell::ToMatlab() const {
  if (IsBrokenIntoLines())
    return wxEmptyString;
  else
    return wxS("box(") + m_innerCell->ListToMatlab() + wxS(")");
}

wxString BoxCell::ToTeX() const {
  if (IsBrokenIntoLines())
    return wxEmptyString;
  else
    return wxS("\\fbox{") + m_innerCell->ListToTeX() + wxS("}");
}

wxString BoxCell::ToMathML() const {
  return wxS("<menclose notation=\"box\">") + m_innerCell->ListToMathML() +
    wxS("</menclose>");
}

wxString BoxCell::ToOMML() const {
  return _T("<m:func><m:fName><m:r>box</m:r></m:fName><m:e>") +
    m_innerCell->ListToOMML() + _T("</m:e></m:func>");
}

wxString BoxCell::ToXML() const {
  return wxS("<hl") + GetXMLFlags() + wxS(">") + m_innerCell->ListToXML() +
    wxS("</hl>");
}

bool BoxCell::BreakUp() const {
  if (IsBrokenIntoLines())
    return false;

  Cell::BreakUpAndMark();
  m_open->SetNextToDraw(m_innerCell);
  m_innerCell->last()->SetNextToDraw(m_close);
  m_close->SetNextToDraw(m_nextToDraw);
  m_nextToDraw = m_open;
  return true;
}

void BoxCell::SetNextToDraw(Cell *next) const {
  if (IsBrokenIntoLines())
    m_close->SetNextToDraw(next);
  else
    m_nextToDraw = next;
}
