stringexpressionwriter.h

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/*************************************************************************************
 *  Copyright (C) 2008 by Aleix Pol <aleixpol@kde.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 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   *
 *************************************************************************************/

#ifndef STRINGEXPRESSIONWRITER_H
#define STRINGEXPRESSIONWRITER_H

#include "abstractexpressionvisitor.h"
#include "operator.h"

namespace Analitza
{

class StringExpressionWriter : public AbstractExpressionVisitor
{
    public:
        StringExpressionWriter(const Object* o);
        
        virtual QVariant visit(const Ci* var);
        virtual QVariant visit(const Cn* var);
        virtual QVariant visit(const Container* var);
        virtual QVariant visit(const Operator* var);
        virtual QVariant visit(const Vector* var);
        virtual QVariant visit(const List* l);
        virtual QVariant visit(const Matrix* m);
        virtual QVariant visit(const MatrixRow* mr);
        virtual QVariant visit(const Apply* a);
        virtual QVariant visit(const CustomObject* c);
        
        QVariant result() const { return m_result; }
        
        static int weight(const Analitza::Operator* op, int size, int pos);
        static const QMap<Operator::OperatorType, QString> s_operators;
    private:
        template <class T>
            static QStringList allValues(T it, const T& itEnd, AbstractExpressionVisitor* writer);

        QVariant m_result;
};

}
#endif