File indexing completed on 2023-10-03 06:50:25

 /*************************************************************************************
  *  Copyright (C) 2007-2009 by Aleix Pol <aleixpol@kde.org>                          *
  *  Copyright (C) 2010-2012 by Percy Camilo T. Aucahuasi <percy.camilo.ta@gmail.com> *
  *                                                                                   *
  *  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 FUNCTIONGRAPH2_H
 #define FUNCTIONGRAPH2_H
 
 #include "plotitem.h"
 #include <QPair>
 
 namespace Analitza
 {
 
 /**
  * \class FunctionGraph
  * 
  * \ingroup AnalitzaPlotModule
  *
  * \brief Base class for any object that is a lambda expression.
  *
  * This class is a common interface for functions objects.
  */
 
 class AbstractFunctionGraph;
 
 class ANALITZAPLOT_EXPORT FunctionGraph : public PlotItem
 {
 public:
     ~FunctionGraph() override;
 
     Analitza::Variables *variables() const override;
     
     //MappingGraph
     QString typeName() const override;
     const Analitza::Expression &expression() const override;
     QString iconName() const override;
     Dimension spaceDimension() const override;
     CoordinateSystem coordinateSystem() const override;
     QStringList errors() const;
     bool isCorrect() const;
 
     //if evaluate true then result of expressiones will be strings of the value
     //if evaluate is false then the expressions will not evaluate
  
     QPair<Analitza::Expression, Analitza::Expression> interval(const QString &argname, bool evaluate) const;
     bool setInterval(const QString &argname, const Analitza::Expression &min, const Analitza::Expression &max);
 
     QPair<double, double> interval(const QString &argname) const;
     bool setInterval(const QString &argname, double min, double max);
     void clearIntervals();
     bool hasIntervals() const;
     
     /** @returns the parameters that a function expects */
     QStringList parameters() const;
 
     /**
      * The display property will store the expression like it's been entered by the user.
      * This is useful because sometimes the expression is modified when entered so that
      * we can plot it properly, this remembers what the user entered.
      */
     QString display() const override;
     void setDisplay(const QString& display);
     
     /** 
      * This method gives a hint to the backend of how many @p points we want the plots to have.
      * This is useful for telling the plot implementations an idea of where is this going to be plotted, so
      * we can use lighter computations if we're previewing or if we're in a small device.
      */
     void setResolution(int points);
     
 protected:
     FunctionGraph(AbstractFunctionGraph* g);
     AbstractFunctionGraph *backend() const { return m_functionGraph; }
 
 private:
     FunctionGraph(const FunctionGraph &other);
     
     AbstractFunctionGraph *m_functionGraph;
     QStringList m_errors;
     QString m_display;
 };
 
 }
 
 #endif // FUNCTIONGRAPH2_H