qavrgmeasurer.h

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#ifndef QAVRGMEASURER_H
#define QAVRGMEASURER_H

#include <qwt_plot_picker.h>
#include <qwt_plot_canvas.h>

class QavrgMeasurer : public QwtPlotPicker
{
  Q_OBJECT;

public:
  QavrgMeasurer(int xAxis, int yAxis, QWidget *canvas);
  void connections();

  QwtText  trackerText(const QPointF &pos) const;

public slots:
  void onAppended(const QPointF &pt);
  void onSelected(const QVector<QPointF> &poly);

signals:
  void printMessage(QString msg);

private:
  QPointF   m_StartPoint;
  bool      m_Started;
};

#endif // QAVRGMEASURER_H