- Qt 5.5
- Qt Sensors
- Qt Sensors - Explorer QML Example
- sensoritem.h Example File
- Qt 5.5.1 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
    ** Licensees holding valid commercial Qt licenses may use this file in
    ** accordance with the commercial license agreement provided with the
    ** Software or, alternatively, in accordance with the terms contained in
    ** a written agreement between you and The Qt Company. For licensing terms
    ** and conditions see http://www.qt.io/terms-conditions. For further
    ** information use the contact form at http://www.qt.io/contact-us.
    **
    ** GNU Lesser General Public License Usage
    ** Alternatively, this file may be used under the terms of the GNU Lesser
    ** General Public License version 2.1 or version 3 as published by the Free
    ** Software Foundation and appearing in the file LICENSE.LGPLv21 and
    ** LICENSE.LGPLv3 included in the packaging of this file. Please review the
    ** following information to ensure the GNU Lesser General Public License
    ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
    ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
    **
    ** As a special exception, The Qt Company gives you certain additional
    ** rights. These rights are described in The Qt Company LGPL Exception
    ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
    **
    ** $QT_END_LICENSE$
    **
    ****************************************************************************/

    #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