qwt_sampling_thread.h

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/******************************************************************************
 * Qwt Widget Library
 * Copyright (C) 1997   Josef Wilgen
 * Copyright (C) 2002   Uwe Rathmann
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the Qwt License, Version 1.0
 *****************************************************************************/

#ifndef QWT_SAMPLING_THREAD_H
#define QWT_SAMPLING_THREAD_H

#include "qwt_global.h"
#include <qthread.h>

class QWT_EXPORT QwtSamplingThread : public QThread
{
    Q_OBJECT

  public:
    virtual ~QwtSamplingThread();

    double interval() const;
    double elapsed() const;

  public Q_SLOTS:
    void setInterval( double interval );
    void stop();

  protected:
    explicit QwtSamplingThread( QObject* parent = NULL );

    virtual void run() QWT_OVERRIDE;

    virtual void sample( double elapsed ) = 0;

  private:
    class PrivateData;
    PrivateData* m_data;
};

#endif