Qt 5.6 | Qt Sensors | Qt Sensors - Explorer QML Example | sensoritem.h Example File

Qt 5.6.3 Reference Documentation

# sensoritem.h Example File

sensor_explorer/import/sensoritem.h

      /****************************************************************************
      **
      ** Copyright (C) 2015 The Qt Company Ltd.
      ** Contact: http://www.qt.io/licensing/
      **
      ** This file is part of the QtSensors module of the Qt Toolkit.
      **
      ** $QT_BEGIN_LICENSE:LGPL21$
      ** Commercial License Usage
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      ** GNU Lesser General Public License Usage
      ** Alternatively, this file may be used under the terms of the GNU Lesser
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      ** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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      #ifndef QSENSORITEM_H
      #define QSENSORITEM_H

      #include <QtQml/QtQml>
      #include <QtCore/QString>
      #include "propertyinfo.h"

      class QSensor;
      class QSensorItem : public QObject
      {
          Q_OBJECT
          Q_PROPERTY(bool start READ start WRITE setStart NOTIFY startChanged)
          Q_PROPERTY(QString id READ id CONSTANT)
          Q_PROPERTY(QQmlListProperty<QPropertyInfo> properties READ properties NOTIFY propertiesChanged)
      public:
          QSensorItem(QObject* parent = 0);
          QSensorItem(QSensor* sensor, QObject* parent = 0);
          virtual ~QSensorItem();

      public slots:
          void select();
          void unSelect();
          void changePropertyValue(QPropertyInfo* property, const QString& val);

      private slots:
          void sensorReadingChanged();

      private:
          QString id();
          bool start();
          void setStart(bool run);
          QQmlListProperty<QPropertyInfo> properties();
          QString convertValue(const QString& type, const QVariant& val);
          bool isWriteable(const QString& propertyname);
          bool ignoreProperty(const QString& propertyname);
          void updateSensorPropertyValues();

      Q_SIGNALS:
          void propertiesChanged();
          void startChanged();

      private:
          QSensor* _qsensor;
          QList<QPropertyInfo*> _properties;
          QList<QPropertyInfo*> _readerProperties;
          QList<QPropertyInfo*> _sensorProperties;
      };

      QML_DECLARE_TYPE(QSensorItem)

      #endif // QSENSORITEM_H