- Qt 5.3
- Qt Sensors
- Qt Sensors - Explorer QML Example
- sensoritem.h Example File
- Qt 5.3.2 Reference Documentation

# sensoritem.h Example File

sensor_explorer/import/sensoritem.h

    /****************************************************************************
    **
    ** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
    ** Contact: http://www.qt-project.org/legal
    **
    ** This file is part of the QtSensors module of the Qt Toolkit.
    **
    ** $QT_BEGIN_LICENSE:LGPL$
    ** 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 Digia.  For licensing terms and
    ** conditions see http://qt.digia.com/licensing.  For further information
    ** use the contact form at http://qt.digia.com/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 as published by the Free Software
    ** Foundation and appearing in the file LICENSE.LGPL included in the
    ** packaging of this file.  Please review the following information to
    ** ensure the GNU Lesser General Public License version 2.1 requirements
    ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
    **
    ** In addition, as a special exception, Digia gives you certain additional
    ** rights.  These rights are described in the Digia Qt LGPL Exception
    ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
    **
    ** GNU General Public License Usage
    ** Alternatively, this file may be used under the terms of the GNU
    ** General Public License version 3.0 as published by the Free Software
    ** Foundation and appearing in the file LICENSE.GPL included in the
    ** packaging of this file.  Please review the following information to
    ** ensure the GNU General Public License version 3.0 requirements will be
    ** met: http://www.gnu.org/copyleft/gpl.html.
    **
    **
    ** $QT_END_LICENSE$
    **
    ****************************************************************************/

    #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