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Diffstat (limited to 'src/imports/sensors/qmldistancesensor.cpp')
-rw-r--r-- | src/imports/sensors/qmldistancesensor.cpp | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/src/imports/sensors/qmldistancesensor.cpp b/src/imports/sensors/qmldistancesensor.cpp new file mode 100644 index 00000000..2c714d6f --- /dev/null +++ b/src/imports/sensors/qmldistancesensor.cpp @@ -0,0 +1,125 @@ +/**************************************************************************** +** +** Copyright (C) 2014 BlackBerry Limited. All rights reserved. +** Contact: http://www.qt-project.org/legal +** +** 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 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 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. +** +** 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ +#include "qmldistancesensor.h" +#include <QDistanceSensor> + +/*! + \qmltype DistanceSensor + \instantiates QmlDistanceSensor + \ingroup qml-sensors_type + \inqmlmodule QtSensors + \since QtSensors 5.4 + \inherits Sensor + \brief The DistanceSensor element reports the distance in cm from an object to the device. + + The DistanceSensor element reports the distance in cm from an object to the device. + + This element wraps the QDistanceSensor class. Please see the documentation for + QDistanceSensor for details. + + \sa DistanceReading +*/ + +QmlDistanceSensor::QmlDistanceSensor(QObject *parent) + : QmlSensor(parent) + , m_sensor(new QDistanceSensor(this)) +{ +} + +QmlDistanceSensor::~QmlDistanceSensor() +{ +} + +QmlSensorReading *QmlDistanceSensor::createReading() const +{ + return new QmlDistanceReading(m_sensor); +} + +QSensor *QmlDistanceSensor::sensor() const +{ + return m_sensor; +} + +/*! + \qmltype DistanceReading + \instantiates QmlDistanceReading + \ingroup qml-sensors_reading + \inqmlmodule QtSensors + \since QtSensors 5.4 + \inherits SensorReading + \brief The DistanceReading element holds the most recent DistanceSensor reading. + + The DistanceReading element holds the most recent DistanceSensor reading. + + This element wraps the QDistanceReading class. Please see the documentation for + QDistanceReading for details. + + This element cannot be directly created. +*/ + +QmlDistanceReading::QmlDistanceReading(QDistanceSensor *sensor) + : QmlSensorReading(sensor) + , m_sensor(sensor) + , m_distance(0.0) +{ +} + +QmlDistanceReading::~QmlDistanceReading() +{ +} + +/*! + \qmlproperty qreal DistanceReading::distance + This property holds the distance measurement + + Please see QDistanceReading::distance for information about this property. +*/ + +qreal QmlDistanceReading::distance() const +{ + return m_distance; +} + +QSensorReading *QmlDistanceReading::reading() const +{ + return m_sensor->reading(); +} + +void QmlDistanceReading::readingUpdate() +{ + qreal distance = m_sensor->reading()->distance(); + if (m_distance != distance) { + m_distance = distance; + Q_EMIT distanceChanged(); + } +} |