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Diffstat (limited to 'examples/network/bearercloud/bearercloud.cpp')
| -rw-r--r-- | examples/network/bearercloud/bearercloud.cpp | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/examples/network/bearercloud/bearercloud.cpp b/examples/network/bearercloud/bearercloud.cpp new file mode 100644 index 0000000..27a296d --- /dev/null +++ b/examples/network/bearercloud/bearercloud.cpp @@ -0,0 +1,197 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "bearercloud.h" +#include "cloud.h" + +#include <QGraphicsTextItem> +#include <QTimer> +#include <QDateTime> +#include <QHostInfo> + +#include <QDebug> + +#include <math.h> + +#ifndef M_PI +#define M_PI 3.14159265358979323846 +#endif + +//! [0] +BearerCloud::BearerCloud(QObject *parent) +: QGraphicsScene(parent), timerId(0) +{ + setSceneRect(-300, -300, 600, 600); + + qsrand(QDateTime::currentDateTime().toTime_t()); + + offset[QNetworkConfiguration::Active] = 2 * M_PI * qrand() / RAND_MAX; + offset[QNetworkConfiguration::Discovered] = offset[QNetworkConfiguration::Active] + M_PI / 6; + offset[QNetworkConfiguration::Defined] = offset[QNetworkConfiguration::Discovered] - M_PI / 6; + offset[QNetworkConfiguration::Undefined] = offset[QNetworkConfiguration::Undefined] + M_PI / 6; + + thisDevice = new QGraphicsTextItem(QHostInfo::localHostName()); + thisDevice->setData(0, QLatin1String("This Device")); + thisDevice->setPos(thisDevice->boundingRect().width() / -2, + thisDevice->boundingRect().height() / -2); + addItem(thisDevice); + + qreal radius = Cloud::getRadiusForState(QNetworkConfiguration::Active); + QGraphicsEllipseItem *orbit = new QGraphicsEllipseItem(-radius, -radius, 2*radius, 2*radius); + orbit->setPen(QColor(Qt::green)); + addItem(orbit); + radius = Cloud::getRadiusForState(QNetworkConfiguration::Discovered); + orbit = new QGraphicsEllipseItem(-radius, -radius, 2*radius, 2*radius); + orbit->setPen(QColor(Qt::blue)); + addItem(orbit); + radius = Cloud::getRadiusForState(QNetworkConfiguration::Defined); + orbit = new QGraphicsEllipseItem(-radius, -radius, 2*radius, 2*radius); + orbit->setPen(QColor(Qt::darkGray)); + addItem(orbit); + radius = Cloud::getRadiusForState(QNetworkConfiguration::Undefined); + orbit = new QGraphicsEllipseItem(-radius, -radius, 2*radius, 2*radius); + orbit->setPen(QColor(Qt::lightGray)); + addItem(orbit); + + connect(&manager, SIGNAL(configurationAdded(QNetworkConfiguration)), + this, SLOT(configurationAdded(QNetworkConfiguration))); + connect(&manager, SIGNAL(configurationRemoved(QNetworkConfiguration)), + this, SLOT(configurationRemoved(QNetworkConfiguration))); + connect(&manager, SIGNAL(configurationChanged(QNetworkConfiguration)), + this, SLOT(configurationChanged(QNetworkConfiguration))); + + QTimer::singleShot(0, this, SLOT(updateConfigurations())); +} +//! [0] + +BearerCloud::~BearerCloud() +{ +} + +void BearerCloud::cloudMoved() +{ + if (!timerId) + timerId = startTimer(1000 / 25); +} + +void BearerCloud::timerEvent(QTimerEvent *) +{ + QList<Cloud *> clouds; + foreach (QGraphicsItem *item, items()) { + if (Cloud *cloud = qgraphicsitem_cast<Cloud *>(item)) + clouds << cloud; + } + + foreach (Cloud *cloud, clouds) + cloud->calculateForces(); + + bool cloudsMoved = false; + foreach (Cloud *cloud, clouds) + cloudsMoved |= cloud->advance(); + + if (!cloudsMoved) { + killTimer(timerId); + timerId = 0; + } +} + +//! [2] +void BearerCloud::configurationAdded(const QNetworkConfiguration &config) +{ + const QNetworkConfiguration::StateFlags state = config.state(); + + configStates.insert(state, config.identifier()); + + const qreal radius = Cloud::getRadiusForState(state); + const int count = configStates.count(state); + const qreal angle = 2 * M_PI / count; + + Cloud *item = new Cloud(config); + configurations.insert(config.identifier(), item); + + item->setPos(radius * cos((count-1) * angle + offset[state]), + radius * sin((count-1) * angle + offset[state])); + + addItem(item); + + cloudMoved(); +} +//! [2] + +//! [3] +void BearerCloud::configurationRemoved(const QNetworkConfiguration &config) +{ + foreach (const QNetworkConfiguration::StateFlags &state, configStates.uniqueKeys()) + configStates.remove(state, config.identifier()); + + Cloud *item = configurations.take(config.identifier()); + + item->setFinalScale(0.0); + item->setDeleteAfterAnimation(true); + + cloudMoved(); +} +//! [3] + +//! [4] +void BearerCloud::configurationChanged(const QNetworkConfiguration &config) +{ + foreach (const QNetworkConfiguration::StateFlags &state, configStates.uniqueKeys()) + configStates.remove(state, config.identifier()); + + configStates.insert(config.state(), config.identifier()); + + cloudMoved(); +} +//! [4] + +//! [1] +void BearerCloud::updateConfigurations() +{ + QList<QNetworkConfiguration> allConfigurations = manager.allConfigurations(); + + while (!allConfigurations.isEmpty()) + configurationAdded(allConfigurations.takeFirst()); + + cloudMoved(); +} +//! [1] + |