value.h

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/*
 * Gnome Chemistry Utils
 * value.h
 *
 * Copyright (C) 2002-2008 Jean Bréfort <jean.brefort@normalesup.org>
 *
 * 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 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
 * 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 St, Fifth Floor, Boston, MA  02110-1301
 * USA
 */

#ifndef GCU_VALUE_H
#define GCU_VALUE_H

#include "chemistry.h"
#include <string>
#include <map>
#include <string>
#include <stdexcept>

namespace gcu
{

class Value
{
public:
        Value ();
        virtual ~Value ();

        virtual char const *GetAsString () const;

        virtual double GetAsDouble () const;
};

class SimpleValue: public Value
{
friend class Element;

public:
        SimpleValue ();
        SimpleValue (GcuValue value);
        virtual ~SimpleValue ();

        char const *GetAsString () const;
        double GetAsDouble () const;
        GcuValue const GetValue () {return val;}
        SimpleValue operator+ (SimpleValue const &value) const;
        SimpleValue operator* (int n) const;

private:
        GcuValue val;
        std::string str;
};
class DimensionalValue: public Value
{
friend class Element;

public:
        DimensionalValue ();
        virtual ~DimensionalValue ();

        char const *GetAsString () const;
        double GetAsDouble () const;
        DimensionalValue operator+ (DimensionalValue const &value) const throw (std::invalid_argument);
        DimensionalValue operator* (int n) const;
        GcuDimensionalValue const GetValue () const {return val;}

private:
        GcuDimensionalValue val;
        std::string str;
};

class StringValue: public Value
{
friend class Element;

public:
        StringValue ();
        virtual ~StringValue ();

        char const *GetAsString () const;

private:
        std::string val;
};

class LocalizedStringValue: public Value
{
friend class Element;

public:
        LocalizedStringValue ();
        virtual ~LocalizedStringValue ();

        char const *GetAsString () const;
        char const *GetLocalizedString (char const *lang) const;

private:
        std::map <std::string, std::string> vals;
};

}       // namespace gcu

#endif  //      GCU_VALUE_H