explorer.cpp Example Filesensors/sensor_explorer/import/explorer.cpp/**************************************************************************** ** ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). ** Contact: http://www.qt-project.org/ ** ** This file is part of the QtSensors module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** GNU Lesser General Public License Usage ** 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. ** ** 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. ** ** Other Usage ** Alternatively, this file may be used in accordance with the terms and ** conditions contained in a signed written agreement between you and Nokia. ** ** ** ** ** ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include "explorer.h" #include <QtCore/QDebug> #include <qsensor.h> #include <QMetaObject> #include <QMetaProperty> /* \class QSensorExplorer \brief The QSensorExplorer element provides an easy access for reading all avalaible sensors installed on the system. */ /* Construct a QSensorExplorer object with parent \a parent */ QSensorExplorer::QSensorExplorer(QObject* parent) : QObject(parent) , _selectedSensorItem(0) { loadSensors(); } /* Destructor of a QSensorExplorer */ QSensorExplorer::~QSensorExplorer() { } /* Load all available sensors and store it in a list. */ void QSensorExplorer::loadSensors() { _availableSensors.clear(); foreach (const QByteArray &type, QSensor::sensorTypes()) { qDebug() << "Found type" << type; foreach (const QByteArray &identifier, QSensor::sensorsForType(type)) { qDebug() << "Found identifier" << identifier; // Don't put in sensors we can't connect to QSensor* sensor = new QSensor(type, this); sensor->setIdentifier(identifier); if (!sensor->connectToBackend()) { qDebug() << "Couldn't connect to" << identifier; continue; } qDebug() << "Adding identifier" << identifier; _availableSensors.append(new QSensorItem(sensor, this)); } } emit availableSensorsChanged(); } /* \fn QSensorExplorer::availableSensorsChanged() Notifies the client if the list of the available sensors was changed */ /* \property QSensorExplorer::availableSensors Returns a list of all available sensor. */ QQmlListProperty<QSensorItem> QSensorExplorer::availableSensors() { return QQmlListProperty<QSensorItem>(this,_availableSensors); } /* \fn QSensorExplorer::selectedSensorItemChanged() Notifies the client if the selected sensor has been changed */ /* \property QSensorExplorer::selectedSensorItem Returns the current selected sensor item. */ QSensorItem* QSensorExplorer::selectedSensorItem() { return _selectedSensorItem; } /* \fn QSensorExplorer::setSelectedSensorItem(QSensorItem* selitem) Sets the QSensorItem \a selitem as the current selected QSensorItem. */ void QSensorExplorer::setSelectedSensorItem(QSensorItem* selitem) { if (selitem && _selectedSensorItem != selitem) { if (_selectedSensorItem) _selectedSensorItem->unSelect(); _selectedSensorItem = selitem; _selectedSensorItem->select(); emit selectedSensorItemChanged(); } } |