1 

     2 

     3 #include "compasscontroller.h"

     4 #include "view.h"

     5 

     6 CompassController::CompassController(): m_width(View::m_imageWidth){

     7     setDataRate(&m_compass);

     8     doConnect();

     9 }

    10 

    11 CompassController::~CompassController(){

    12     doDisconnect();

    13 }

    14 

    15 

    16 void CompassController::update()

    17 {

    18     qreal azimuth = m_compass.reading()->azimuth();

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

    20 }

    21 

    22 

    23 

    24 void CompassController::doConnect(){

    25     m_compass.start();

    26     connect(&m_compass, SIGNAL(readingChanged()), this, SLOT(update()));

    27 

    28 }

    29 

    30 

    31 void CompassController::doDisconnect(){

    32     m_compass.disconnect();

    33     m_compass.stop();

    34 }