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sensors/contextplugin/stabilityfilter.h

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00001 
00025 #ifndef STABILITYFILTER_H
00026 #define STABILITYFILTER_H
00027 
00028 #include "filter.h"
00029 
00030 #include <ContextProvider>
00031 
00032 #include <QPair>
00033 #include <QTimer>
00034 
00048 using ContextProvider::Property;
00049 
00050 class StabilityFilter : public QObject, public Filter<QPair<double, double>, StabilityFilter, QPair<double, double> >
00051 {
00052     Q_OBJECT
00053 
00054 public:
00055     StabilityFilter(Property* stableProperty, Property* unstableProperty,
00056                     double lowThreshold, double highThreshold, double hysteresis = 0.0);
00057 
00058 public Q_SLOTS:
00059     void timeoutTriggered();
00060 
00061 private:
00062     double lowThreshold;
00063     double highThreshold;
00064     double hysteresis;
00065     Property* stableProperty;
00066     Property* unstableProperty;
00067     void interpret(unsigned, const QPair<double, double>* data);
00068     QTimer timer;
00069 
00070     int timeout;
00071     static const int defaultTimeout;
00072 };
00073 
00074 #endif

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