timeseries_qwt.h

Go to the documentation of this file.

/*
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at https://mozilla.org/MPL/2.0/.
 */
 
#ifndef TIMESERIES_QWT_H
#define TIMESERIES_QWT_H
 
#include "qwt_series_data.h"
#include "PlotJuggler/plotdata.h"
#include "PlotJuggler/transform_function.h"
 
using namespace PJ;
 
// wrapper to Timeseries inclduing a time offset
class QwtSeriesWrapper : public QwtSeriesData<QPointF>
{
private:
  const PlotDataXY* _data;
 
public:
  QwtSeriesWrapper(const PlotDataXY* data) : _data(data)
  {
  }
 
  QPointF sample(size_t i) const override;
 
  size_t size() const override;
 
  QRectF boundingRect() const override;
 
  virtual const PlotDataXY* plotData() const;
 
  virtual RangeOpt getVisualizationRangeX();
 
  virtual RangeOpt getVisualizationRangeY(Range range_X);
 
  virtual void updateCache(bool reset_old_data)
  {
  }
};
 
class QwtTimeseries : public QwtSeriesWrapper
{
public:
  QwtTimeseries(const PlotData* data) : QwtSeriesWrapper(data), _ts_data(data)
  {
  }
 
  QPointF sample(size_t i) const override;
 
  QRectF boundingRect() const override;
 
  void setTimeOffset(double offset);
 
  virtual RangeOpt getVisualizationRangeX() override;
 
  virtual RangeOpt getVisualizationRangeY(Range range_X) override;
 
  virtual std::optional<QPointF> sampleFromTime(double t);
 
  void updateCache(bool) override
  {
  }
 
protected:
  const PlotData* _ts_data;
  double _time_offset = 0.0;
};
 
//------------------------------------
 
class TransformedTimeseries : public QwtTimeseries
{
public:
  TransformedTimeseries(const PlotData* source_data);
 
  TransformFunction::Ptr transform();
 
  void setTransform(QString transform_ID);
 
  virtual void updateCache(bool reset_old_data) override;
 
  QString transformName();
 
  QString alias() const;
 
  void setAlias(QString alias);
 
protected:
  QString _alias;
  PlotData _dst_data;
  const PlotData* _src_data;
  TransformFunction_SISO::Ptr _transform;
};
 
//---------------------------------------------------------
 
#endif  // PLOTDATA_H