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 /*
     KmPlot - a math. function plotter for the KDE-Desktop
 
     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 PARAMETERANIMATOR_H
 #define PARAMETERANIMATOR_H
 
 #include <QDialog>
 
 class Function;
 class ParameterAnimatorWidget;
 class QTimer;
 
 /**
 @author David Saxton
  */
 class ParameterAnimator : public QDialog
 {
     Q_OBJECT
 public:
     ParameterAnimator(QWidget *parent, Function *function);
     ~ParameterAnimator();
 
 public slots:
     void gotoInitial();
     void gotoFinal();
     void stepBackwards(bool step);
     void stepForwards(bool step);
     void pause();
     void updateSpeed();
 
 protected slots:
     void step();
 
 protected:
     /**
      * Start the timer.
      */
     void startStepping() const;
     /**
      * Stop the timer, update the buttons.
      */
     void stopStepping();
     /**
      * Makes the step buttons toggled / untoggled according to the current
      * state, and show the current value.
      */
     void updateUI();
     /**
      * Gives the current parameter value to the function.
      */
     void updateFunctionParameter();
 
 private:
     enum AnimateMode { StepBackwards, StepForwards, Paused };
 
     AnimateMode m_mode;
     double m_currentValue;
     Function *m_function; ///< The function that we're currently animating
 
     ParameterAnimatorWidget *m_widget;
     QTimer *m_timer; ///< for doing the animation
 };
 
 #endif