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Diffstat (limited to 'examples/positioning/satelliteinfo/satellitemodel.cpp')
| -rw-r--r-- | examples/positioning/satelliteinfo/satellitemodel.cpp | 324 |
1 files changed, 0 insertions, 324 deletions
diff --git a/examples/positioning/satelliteinfo/satellitemodel.cpp b/examples/positioning/satelliteinfo/satellitemodel.cpp deleted file mode 100644 index 77c89035..00000000 --- a/examples/positioning/satelliteinfo/satellitemodel.cpp +++ /dev/null @@ -1,324 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2017 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** 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 https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, you may use this file under the terms of the BSD license -** as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of The Qt Company Ltd nor the names of its -** contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "satellitemodel.h" -#include <QTimer> -#include <QDebug> - -//! [0] -SatelliteModel::SatelliteModel(QObject *parent) : - QAbstractListModel(parent), source(0), m_componentCompleted(false), m_running(false), - m_runningRequested(false), demo(false), isSingle(false), singleRequestServed(false) -{ - source = QGeoSatelliteInfoSource::createDefaultSource(this); - if (!demo && !source) { - qWarning() << "No satellite data source found. Changing to demo mode."; - demo = true; - } - if (!demo) { - source->setUpdateInterval(3000); - connect(source, SIGNAL(satellitesInViewUpdated(QList<QGeoSatelliteInfo>)), - this, SLOT(satellitesInViewUpdated(QList<QGeoSatelliteInfo>))); - connect(source, SIGNAL(satellitesInUseUpdated(QList<QGeoSatelliteInfo>)), - this, SLOT(satellitesInUseUpdated(QList<QGeoSatelliteInfo>))); - connect(source, SIGNAL(errorOccurred(QGeoSatelliteInfoSource::Error)), - this, SLOT(error(QGeoSatelliteInfoSource::Error))); - } - - if (demo) { - timer = new QTimer(this); - connect(timer, SIGNAL(timeout()), this, SLOT(updateDemoData())); - timer->start(3000); - } -} -//! [0] - -int SatelliteModel::rowCount(const QModelIndex &parent) const -{ - Q_UNUSED(parent); - if (!source && !demo) - return 0; - - return knownSatellites.count(); -} - -QVariant SatelliteModel::data(const QModelIndex &index, int role) const -{ - if (!demo && !source) - return QVariant(); - - if (!index.isValid() || index.row() < 0) - return QVariant(); - - if (index.row() >= knownSatellites.count()) { - qWarning() << "SatelliteModel: Index out of bound"; - return QVariant(); - } - - const QGeoSatelliteInfo &info = knownSatellites.at(index.row()); - switch (role) { - case IdentifierRole: - return info.satelliteIdentifier(); - case InUseRole: - return satellitesInUse.contains(info.satelliteIdentifier()); - case SignalStrengthRole: - return info.signalStrength(); - case ElevationRole: - if (!info.hasAttribute(QGeoSatelliteInfo::Elevation)) - return QVariant(); - return info.attribute(QGeoSatelliteInfo::Elevation); - case AzimuthRole: - if (!info.hasAttribute(QGeoSatelliteInfo::Azimuth)) - return QVariant(); - return info.attribute(QGeoSatelliteInfo::Azimuth); - default: - break; - - } - - return QVariant(); -} - -QHash<int, QByteArray> SatelliteModel::roleNames() const -{ - QHash<int, QByteArray> roleNames; - roleNames.insert(IdentifierRole, "satelliteIdentifier"); - roleNames.insert(InUseRole, "isInUse"); - roleNames.insert(SignalStrengthRole, "signalStrength"); - roleNames.insert(ElevationRole, "elevation"); - roleNames.insert(AzimuthRole, "azimuth"); - return roleNames; -} - -void SatelliteModel::componentComplete() -{ - m_componentCompleted = true; - if (m_runningRequested) - setRunning(true); -} - -bool SatelliteModel::running() const -{ - return m_running; -} - -bool SatelliteModel::isSingleRequest() const -{ - return isSingle; -} - -void SatelliteModel::setSingleRequest(bool single) -{ - if (running()) { - qWarning() << "Cannot change single request mode while running"; - return; - } - - if (single != isSingle) { //flag changed - isSingle = single; - emit singleRequestChanged(); - } -} - -void SatelliteModel::setRunning(bool isActive) -{ - if (!source && !demo) - return; - - if (!m_componentCompleted) { - m_runningRequested = isActive; - return; - } - - if (m_running == isActive) - return; - - m_running = isActive; - - if (m_running) { - clearModel(); - if (demo) - timer->start(2000); - else if (isSingleRequest()) - source->requestUpdate(10000); - else - source->startUpdates(); - - if (demo) - singleRequestServed = false; - } else { - if (demo) - timer->stop(); - else if (!isSingleRequest()) - source->stopUpdates(); - } - - - Q_EMIT runningChanged(); -} - -int SatelliteModel::entryCount() const -{ - return knownSatellites.count(); -} - -bool SatelliteModel::canProvideSatelliteInfo() const -{ - return !demo; -} - -void SatelliteModel::clearModel() -{ - beginResetModel(); - knownSatelliteIds.clear(); - knownSatellites.clear(); - satellitesInUse.clear(); - endResetModel(); -} - -//! [2] -void SatelliteModel::updateDemoData() -{ - static bool flag = true; - QList<QGeoSatelliteInfo> satellites; - if (flag) { - for (int i = 0; i<5; i++) { - QGeoSatelliteInfo info; - info.setSatelliteIdentifier(i); - info.setSignalStrength(20 + 20*i); - satellites.append(info); - } - } else { - for (int i = 0; i<9; i++) { - QGeoSatelliteInfo info; - info.setSatelliteIdentifier(i*2); - info.setSignalStrength(20 + 10*i); - satellites.append(info); - } - } - - - satellitesInViewUpdated(satellites); - flag ? satellitesInUseUpdated(QList<QGeoSatelliteInfo>() << satellites.at(2)) - : satellitesInUseUpdated(QList<QGeoSatelliteInfo>() << satellites.at(3)); - flag = !flag; - - emit errorFound(flag); - - if (isSingleRequest() && !singleRequestServed) { - singleRequestServed = true; - setRunning(false); - } -} -//! [2] - -void SatelliteModel::error(QGeoSatelliteInfoSource::Error error) -{ - emit errorFound((int)error); -} - -QT_BEGIN_NAMESPACE -inline bool operator<(const QGeoSatelliteInfo& a, const QGeoSatelliteInfo& b) -{ - return a.satelliteIdentifier() < b.satelliteIdentifier(); -} -QT_END_NAMESPACE - -//! [1] -void SatelliteModel::satellitesInViewUpdated(const QList<QGeoSatelliteInfo> &infos) -{ - if (!running()) - return; - - int oldEntryCount = knownSatellites.count(); - - - QSet<int> satelliteIdsInUpdate; - foreach (const QGeoSatelliteInfo &info, infos) - satelliteIdsInUpdate.insert(info.satelliteIdentifier()); - - QSet<int> toBeRemoved = knownSatelliteIds - satelliteIdsInUpdate; - - //We reset the model as in reality just about all entry values change - //and there are generally a lot of inserts and removals each time - //Hence we don't bother with complex model update logic beyond resetModel() - beginResetModel(); - - knownSatellites = infos; - - //sort them for presentation purposes - std::sort(knownSatellites.begin(), knownSatellites.end()); - - //remove old "InUse" data - //new satellites are by default not in "InUse" - //existing satellites keep their "inUse" state - satellitesInUse -= toBeRemoved; - - knownSatelliteIds = satelliteIdsInUpdate; - endResetModel(); - - if (oldEntryCount != knownSatellites.count()) - emit entryCountChanged(); -} - -void SatelliteModel::satellitesInUseUpdated(const QList<QGeoSatelliteInfo> &infos) -{ - if (!running()) - return; - - beginResetModel(); - - satellitesInUse.clear(); - foreach (const QGeoSatelliteInfo &info, infos) - satellitesInUse.insert(info.satelliteIdentifier()); - - endResetModel(); -} -//! 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