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examples/realtime/RandomPlot.h

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+/*****************************************************************************
+ * Qwt Examples - Copyright (C) 2002 Uwe Rathmann
+ * This file may be used under the terms of the 3-clause BSD License
+ *****************************************************************************/
+
+#pragma once
+
+#include "IncrementalPlot.h"
+#include <QElapsedTimer>
+
+class QTimer;
+
+class RandomPlot : public IncrementalPlot
+{
+    Q_OBJECT
+
+  public:
+    RandomPlot( QWidget* parent = NULL );
+
+    virtual QSize sizeHint() const QWT_OVERRIDE;
+
+  Q_SIGNALS:
+    void running( bool );
+    void elapsed( int ms );
+
+  public Q_SLOTS:
+    void clear();
+    void stop();
+    void append( int timeout, int count );
+
+  private Q_SLOTS:
+    void appendPoint();
+
+  private:
+    void initCurve();
+
+    QTimer* m_timer;
+    int m_timerCount;
+
+    QElapsedTimer m_timeStamp;
+};