#include "magnetometercontroller.h"

#include "view.h"

MagnetometerController::MagnetometerController(): m_width(View::m_imageWidth){

    setDataRate(&m_magnetometer);

    m_magnetometer.setProperty("returnGeoValues", true);

    doStart();

}

MagnetometerController::~MagnetometerController(){

    disconnect(&m_magnetometer);

}

void MagnetometerController::update()

{

    qreal azimuth = -m_magnetometer.reading()->z();

    azimuth = azimuth<0?360+azimuth:azimuth;

    m_x = (int)(-azimuth * m_width/360);

    //TODO: consider provide y values based on x and y

}

void MagnetometerController::doStart(){

    m_magnetometer.start();

    connect(&m_magnetometer, SIGNAL(readingChanged()), this, SLOT(update()));

}

void MagnetometerController::doStop(){

    m_magnetometer.disconnect();

    m_magnetometer.stop();

}