QuattroFormula.h

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* libwps
 * Version: MPL 2.0 / LGPLv2.1+
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * Major Contributor(s):
 * Copyright (C) 2006, 2007 Andrew Ziem
 * Copyright (C) 2003-2005 William Lachance (william.lachance@sympatico.ca)
 * Copyright (C) 2003 Marc Maurer (uwog@uwog.net)
 *
 * For minor contributions see the git repository.
 *
 * Alternatively, the contents of this file may be used under the terms
 * of the GNU Lesser General Public License Version 2.1 or later
 * (LGPLv2.1+), in which case the provisions of the LGPLv2.1+ are
 * applicable instead of those above.
 */
 
#ifndef QUATTRO_FORMULA_H
#define QUATTRO_FORMULA_H
 
#include <functional>
#include <ostream>
#include <string>
#include <vector>
 
#include <librevenge-stream/librevenge-stream.h>
 
#include "libwps_internal.h"
 
#include "WPSDebug.h"
#include "WKSContentListener.h"
 
namespace QuattroFormulaInternal
{
struct State;

class CellReference
{
public:
        CellReference()
                : m_cells()
        {
        }

        void addInstruction(WKSContentListener::FormulaInstruction const &instr)
        {
                if (!m_cells.empty() && instr.m_type!=instr.F_Operator && m_cells.back().m_type!=instr.F_Operator)
                {
                        WKSContentListener::FormulaInstruction sep;
                        sep.m_type=sep.F_Operator;
                        sep.m_content=";";
                        m_cells.push_back(sep);
                }
                m_cells.push_back(instr);
        }

        bool empty() const
        {
                return m_cells.empty();
        }

        friend std::ostream &operator<<(std::ostream &o, CellReference const &ref);
        std::vector<WKSContentListener::FormulaInstruction> m_cells;
};
 
}

class QuattroFormulaManager
{
public:
        typedef std::function<bool(std::shared_ptr<WPSStream> const &stream, long endPos,
                                   QuattroFormulaInternal::CellReference &ref,
                                   Vec2i const &cPos, int cSheet)> CellReferenceFunction;

        QuattroFormulaManager(QuattroFormulaManager::CellReferenceFunction const &readCellReference,
                              int version);

        void addDLLIdName(int id, librevenge::RVNGString const &name, bool func1);
        bool readFormula(std::shared_ptr<WPSStream> const &stream, long endPos, Vec2i const &pos, int sheetId,
                         std::vector<WKSContentListener::FormulaInstruction> &formula, std::string &error) const;
private:
        std::shared_ptr<QuattroFormulaInternal::State> m_state;
};
#endif /* QUATTRO_FORMULA_H */
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