explorer.cpp Example File

  
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  #include "explorer.h"
  #include <QtCore/QDebug>
  #include <qsensor.h>
  #include <QMetaObject>
  #include <QMetaProperty>
  /*
      \class QSensorExplorer
      \brief The QSensorExplorer type provides an easy access for reading all avalaible sensors installed on the system.
  */
  /*
      Construct a QSensorExplorer object with parent \a parent
  */
  QSensorExplorer::QSensorExplorer(QObject* parent)
      : QObject(parent)
      , _selectedSensorItem(0)
  {
      loadSensors();
  }
  /*
      Destructor of a QSensorExplorer
  */
  QSensorExplorer::~QSensorExplorer()
  {
  }
  /*
      Load all available sensors and store it in a list.
  */
  void QSensorExplorer::loadSensors()
  {
      _availableSensors.clear();
      foreach (const QByteArray &type, QSensor::sensorTypes()) {
          qDebug() << "Found type" << type;
          foreach (const QByteArray &identifier, QSensor::sensorsForType(type)) {
              qDebug() << "Found identifier" << identifier;
              // Don't put in sensors we can't connect to
              QSensor* sensor = new QSensor(type, this);
              sensor->setIdentifier(identifier);
              if (!sensor->connectToBackend()) {
                  qDebug() << "Couldn't connect to" << identifier;
                  continue;
              }
              qDebug() << "Adding identifier" << identifier;
              _availableSensors.append(new QSensorItem(sensor, this));
          }
      }
      emit availableSensorsChanged();
  }
  /*
      \fn QSensorExplorer::availableSensorsChanged()
      Notifies the client if the list of the available sensors was changed
  */
  /*
      \property QSensorExplorer::availableSensors
      Returns a list of all available sensor.
  */
  QQmlListProperty<QSensorItem> QSensorExplorer::availableSensors()
  {
      return QQmlListProperty<QSensorItem>(this,_availableSensors);
  }
  /*
      \fn QSensorExplorer::selectedSensorItemChanged()
      Notifies the client if the selected sensor has been changed
  */
  /*
      \property QSensorExplorer::selectedSensorItem
      Returns the current selected sensor item.
  */
  QSensorItem* QSensorExplorer::selectedSensorItem()
  {
      return _selectedSensorItem;
  }
  /*
      \fn QSensorExplorer::setSelectedSensorItem(QSensorItem* selitem)
      Sets the QSensorItem \a selitem as the current selected QSensorItem.
  */
  void QSensorExplorer::setSelectedSensorItem(QSensorItem* selitem)
  {
      if (selitem  && _selectedSensorItem != selitem) {
          if (_selectedSensorItem)
              _selectedSensorItem->unSelect();
          _selectedSensorItem = selitem;
          _selectedSensorItem->select();
          emit selectedSensorItemChanged();
      }
  }