diff options
author | Alex <qt-info@nokia.com> | 2011-05-20 17:08:11 +1000 |
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committer | Alex <qt-info@nokia.com> | 2011-05-20 17:08:11 +1000 |
commit | 6a850596d34703ae65e346d72ad88b5da0732183 (patch) | |
tree | 8fa0078e359f083d4d04be08299642eebd3e7359 /src/sensors/qsensorbackend.h | |
parent | 19a84f7edab382ba55ae8bc8763dacc76ce8c396 (diff) | |
download | qtsensors-6a850596d34703ae65e346d72ad88b5da0732183.tar.gz |
Add the first version of QtSensors to Qt 5
Diffstat (limited to 'src/sensors/qsensorbackend.h')
-rw-r--r-- | src/sensors/qsensorbackend.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/src/sensors/qsensorbackend.h b/src/sensors/qsensorbackend.h new file mode 100644 index 0000000..1d19e02 --- /dev/null +++ b/src/sensors/qsensorbackend.h @@ -0,0 +1,94 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the Qt Mobility Components. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** 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, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QSENSORBACKEND_H +#define QSENSORBACKEND_H + +#include "qsensor.h" +#include "qsensormanager.h" + +QT_BEGIN_NAMESPACE + +class Q_SENSORS_EXPORT QSensorBackend : public QObject +{ + Q_OBJECT +public: + QSensorBackend(QSensor *sensor); + virtual ~QSensorBackend(); + + virtual void start() = 0; + virtual void stop() = 0; + + // used by the backend to set metadata properties + void addDataRate(qreal min, qreal max); + void setDataRates(const QSensor *otherSensor); + void addOutputRange(qreal min, qreal max, qreal accuracy); + void setDescription(const QString &description); + + template <typename T> + T *setReading(T *reading) + { + if (!reading) + reading = new T(this); + setReadings(reading, new T(this), new T(this)); + return reading; + } + + QSensorReading *reading() const; + QSensor *sensor() const { return m_sensor; } + + // used by the backend to inform us of events + void newReadingAvailable(); + void sensorStopped(); + void sensorBusy(); + void sensorError(int error); + +private: + void setReadings(QSensorReading *device, QSensorReading *filter, QSensorReading *cache); + + QSensor *m_sensor; + Q_DISABLE_COPY(QSensorBackend) +}; + +QT_END_NAMESPACE + +#endif + |