utils.h

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#ifndef UTILS_H
#define UTILS_H

#include <QObject>
#include "PlotJuggler/plotdata.h"



class MonitoredValue: public QObject{
    Q_OBJECT
public:
    MonitoredValue(QObject* parent = nullptr): QObject(parent), _value(0) {}

    void set(double newValue){
        double prev = _value;
        _value = newValue;
        if( fabs( newValue - prev ) > std::numeric_limits<double>::epsilon() )
        {
            emit valueChanged(_value);
        }
    }

    double get() const { return _value; }
signals:
    void valueChanged(double);
private:
    double _value;
};

#endif // UTILS_H