Qwt User's Guide  6.2.0
qwt_sampling_thread.h
1 /******************************************************************************
2  * Qwt Widget Library
3  * Copyright (C) 1997 Josef Wilgen
4  * Copyright (C) 2002 Uwe Rathmann
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the Qwt License, Version 1.0
8  *****************************************************************************/
9 
10 #ifndef QWT_SAMPLING_THREAD_H
11 #define QWT_SAMPLING_THREAD_H
12 
13 #include "qwt_global.h"
14 #include <qthread.h>
15 
28 class QWT_EXPORT QwtSamplingThread : public QThread
29 {
30  Q_OBJECT
31 
32  public:
33  virtual ~QwtSamplingThread();
34 
35  double interval() const;
36  double elapsed() const;
37 
38  public Q_SLOTS:
39  void setInterval( double interval );
40  void stop();
41 
42  protected:
43  explicit QwtSamplingThread( QObject* parent = NULL );
44 
45  virtual void run() QWT_OVERRIDE;
46 
55  virtual void sample( double elapsed ) = 0;
56 
57  private:
58  class PrivateData;
59  PrivateData* m_data;
60 };
61 
62 #endif
A thread collecting samples at regular intervals.
virtual void sample(double elapsed)=0