plotconstant.h

//
// author Kazys Stepanas
//
// Copyright (c) CSIRO 2013
//
#ifndef __PLOTCONSTANT_H_
#define __PLOTCONSTANT_H_

#include "plotsconfig.h"

#include "plotexpression.h"

class PlotConstant : public PlotExpression
{
public:
  inline PlotConstant(double constant) : _constant(constant) {}

  inline void setConstant(double constant) { _constant = constant; }

  inline double constant() const { return _constant; }

  virtual double sample(double sampleTime) const;

  virtual BindResult bind(const QList<PlotInstance *> &curves, PlotBindingTracker &bindTracker, PlotExpressionBindDomain &info, bool repeatLastBinding = false);

  virtual PlotExpression *clone() const;

private:
  virtual QString stringExpression() const;

  double _constant; 
};

#endif // __PLOTCONSTANT_H_