plotfunction.h

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

#include "plotsconfig.h"

#include "plotexpression.h"

#include "plotfunctioninfo.h"
#include "plotfunctionresult.h"

#include <QVector>

class FunctionDefinition;

class PlotFunction : public PlotExpression
{
public:
  PlotFunction(const FunctionDefinition *function, const QVector<PlotExpression *> &args = QVector<PlotExpression *>());

  ~PlotFunction();

  const FunctionDefinition *function() const { return _function; }

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

  virtual void unbind();

  virtual double sample(double sampleTime) const;

  const QVector<PlotExpression *> &args() const { return _args; }

  QVector<PlotExpression *> cloneArgs() const;

  virtual PlotExpression *clone() const;

private:
  virtual QString stringExpression() const;

  QVector<PlotExpression *> _args;      
  const FunctionDefinition *_function;  
  mutable PlotFunctionInfo _info;       
  void *_functionContext;               
};

#endif // __PLOTFUNCTION_H_