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/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the Qt Mobility Components.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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** the names of its contributors may be used to endorse or promote
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** products derived from this software without specific prior written
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** permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "bearercloud.h"
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#include "cloud.h"
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#include <QGraphicsTextItem>
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#include <QTimer>
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#include <QDateTime>
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#include <QHostInfo>
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#include <QDebug>
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#include <math.h>
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#ifndef M_PI
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#define M_PI 3.14159265358979323846
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#endif
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//! [0]
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BearerCloud::BearerCloud(QObject *parent)
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: QGraphicsScene(parent), timerId(0)
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{
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setSceneRect(-300, -300, 600, 600);
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qsrand(QDateTime::currentDateTime().toTime_t());
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offset[QNetworkConfiguration::Active] = 2 * M_PI * qrand() / RAND_MAX;
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offset[QNetworkConfiguration::Discovered] = offset[QNetworkConfiguration::Active] + M_PI / 6;
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offset[QNetworkConfiguration::Defined] = offset[QNetworkConfiguration::Discovered] - M_PI / 6;
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offset[QNetworkConfiguration::Undefined] = offset[QNetworkConfiguration::Undefined] + M_PI / 6;
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thisDevice = new QGraphicsTextItem(QHostInfo::localHostName());
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thisDevice->setData(0, QLatin1String("This Device"));
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thisDevice->setPos(thisDevice->boundingRect().width() / -2,
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thisDevice->boundingRect().height() / -2);
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addItem(thisDevice);
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qreal radius = Cloud::getRadiusForState(QNetworkConfiguration::Active);
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QGraphicsEllipseItem *orbit = new QGraphicsEllipseItem(-radius, -radius, 2*radius, 2*radius);
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orbit->setPen(QColor(Qt::green));
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addItem(orbit);
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radius = Cloud::getRadiusForState(QNetworkConfiguration::Discovered);
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orbit = new QGraphicsEllipseItem(-radius, -radius, 2*radius, 2*radius);
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orbit->setPen(QColor(Qt::blue));
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addItem(orbit);
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radius = Cloud::getRadiusForState(QNetworkConfiguration::Defined);
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orbit = new QGraphicsEllipseItem(-radius, -radius, 2*radius, 2*radius);
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orbit->setPen(QColor(Qt::darkGray));
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addItem(orbit);
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radius = Cloud::getRadiusForState(QNetworkConfiguration::Undefined);
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orbit = new QGraphicsEllipseItem(-radius, -radius, 2*radius, 2*radius);
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orbit->setPen(QColor(Qt::lightGray));
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addItem(orbit);
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connect(&manager, SIGNAL(configurationAdded(QNetworkConfiguration)),
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this, SLOT(configurationAdded(QNetworkConfiguration)));
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connect(&manager, SIGNAL(configurationRemoved(QNetworkConfiguration)),
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this, SLOT(configurationRemoved(QNetworkConfiguration)));
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connect(&manager, SIGNAL(configurationChanged(QNetworkConfiguration)),
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this, SLOT(configurationChanged(QNetworkConfiguration)));
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QTimer::singleShot(0, this, SLOT(updateConfigurations()));
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}
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//! [0]
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BearerCloud::~BearerCloud()
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{
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}
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void BearerCloud::cloudMoved()
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{
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if (!timerId)
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timerId = startTimer(1000 / 25);
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}
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void BearerCloud::timerEvent(QTimerEvent *)
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{
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QList<Cloud *> clouds;
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foreach (QGraphicsItem *item, items()) {
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if (Cloud *cloud = qgraphicsitem_cast<Cloud *>(item))
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clouds << cloud;
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}
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foreach (Cloud *cloud, clouds)
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cloud->calculateForces();
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bool cloudsMoved = false;
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foreach (Cloud *cloud, clouds)
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cloudsMoved |= cloud->advance();
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if (!cloudsMoved) {
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killTimer(timerId);
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timerId = 0;
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}
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}
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//! [2]
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void BearerCloud::configurationAdded(const QNetworkConfiguration &config)
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{
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const QNetworkConfiguration::StateFlags state = config.state();
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configStates.insert(state, config.identifier());
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const qreal radius = Cloud::getRadiusForState(state);
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const int count = configStates.count(state);
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const qreal angle = 2 * M_PI / count;
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Cloud *item = new Cloud(config);
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configurations.insert(config.identifier(), item);
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item->setPos(radius * cos((count-1) * angle + offset[state]),
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radius * sin((count-1) * angle + offset[state]));
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addItem(item);
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cloudMoved();
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}
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//! [2]
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//! [3]
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void BearerCloud::configurationRemoved(const QNetworkConfiguration &config)
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{
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foreach (const QNetworkConfiguration::StateFlags &state, configStates.uniqueKeys())
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configStates.remove(state, config.identifier());
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Cloud *item = configurations.take(config.identifier());
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item->setFinalScale(0.0);
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item->setDeleteAfterAnimation(true);
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cloudMoved();
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}
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//! [3]
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//! [4]
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void BearerCloud::configurationChanged(const QNetworkConfiguration &config)
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{
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foreach (const QNetworkConfiguration::StateFlags &state, configStates.uniqueKeys())
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configStates.remove(state, config.identifier());
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configStates.insert(config.state(), config.identifier());
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cloudMoved();
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}
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//! [4]
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//! [1]
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void BearerCloud::updateConfigurations()
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{
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QList<QNetworkConfiguration> allConfigurations = manager.allConfigurations();
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while (!allConfigurations.isEmpty())
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configurationAdded(allConfigurations.takeFirst());
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cloudMoved();
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}
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//! [1]
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