declinationfilter.h

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#ifndef DECLINATIONFILTER_H
#define DECLINATIONFILTER_H
 
#include <QObject>
#include <QAtomicInt>
#include "datatypes/orientationdata.h"
#include "filter.h"
 
class DeclinationFilter : public QObject, public Filter<CompassData, DeclinationFilter, CompassData>
{
    Q_OBJECT;
    Q_PROPERTY(int declinationCorrection READ declinationCorrection);
 
public:
    static FilterBase* factoryMethod()
    {
        return new DeclinationFilter();
    }
 
    int declinationCorrection();
 
private:
    DeclinationFilter();
 
    void correct(unsigned, const CompassData*);
 
    void loadSettings();
 
    CompassData orientation_;
    QAtomicInt declinationCorrection_;
    quint64 lastUpdate_;
    quint64 updateInterval_;
 
    static const char* declinationKey;
};
 
#endif // DECLINATIONFILTER_H