File indexing completed on 2023-05-30 10:42:17

 /*
     KmPlot - a math. function plotter for the KDE-Desktop
 
     SPDX-FileCopyrightText: 2004 Fredrik Edemar <f_edemar@linux.se>
     SPDX-FileCopyrightText: 2006 David Saxton <david@bluehaze.org>
 
     This file is part of the KDE Project.
     KmPlot is part of the KDE-EDU Project.
 
     SPDX-License-Identifier: GPL-2.0-or-later
 
 */
 
 #ifndef FUNCTIONTOOLS_H
 #define FUNCTIONTOOLS_H
 
 #include "function.h"
 
 #include <QDialog>
 #include <QPair>
 
 class FunctionToolsWidget;
 typedef QPair<Plot, int> EquationPair;
 
 /**
 @author Fredrik Edemar, David Saxton
 */
 /// FunctionTools handles all the dialogs for the items in the tool-menu.
 class FunctionTools : public QDialog
 {
     Q_OBJECT
 public:
     explicit FunctionTools(QWidget *parent = 0);
     ~FunctionTools();
 
     enum Mode { FindMinimum, FindMaximum, CalculateArea };
 
     /**
      * Select the right widget to use in the dialog and initialize the plot
      * list.
      */
     void init(Mode mode);
     /**
      * Sets the currently selected equation.
      */
     void setEquation(const EquationPair &equation);
     /**
      * \return the currently selected equation.
      */
     EquationPair equation() const;
 
 protected Q_SLOTS:
     /**
      * The user selected a different row in the list of plots. Note that
      * \p equation corresponds to the plot in m_equations.
      */
     void equationSelected(int equation);
     /**
      * Called when the min or max range changes.
      */
     void rangeEdited();
 
 protected:
     /**
      * Updates the list of equation. This creates the list of equation in
      * the equations list view and updates m_equations to reflect the
      * contents of the list view.
      */
     void updateEquationList();
     /**
      * Find the minimum in the current range.
      */
     void findMinimum(const EquationPair &equation);
     /**
      * Find the maximum in the current range.
      */
     void findMaximum(const EquationPair &equation);
     /**
      * Find the area under the graph
      */
     void calculateArea(const EquationPair &equation);
 
 private:
     Mode m_mode;
     FunctionToolsWidget *m_widget;
     /**
      * List of plots and equations.
      */
     QVector<EquationPair> m_equations;
 };
 
 #endif