author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 01 Apr 2010 08:30:34 +0300 | |
changeset 0 | cfcbf08528c4 |
child 5 | 453da2cfceef |
permissions | -rw-r--r-- |
0
cfcbf08528c4
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/**************************************************************************** |
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** |
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** Copyright (C) 2009 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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** $QT_BEGIN_LICENSE:LGPL$ |
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** No Commercial Usage |
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** This file contains pre-release code and may not be distributed. |
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** You may use this file in accordance with the terms and conditions |
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** contained in the Technology Preview License Agreement accompanying |
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** this package. |
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** |
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** GNU Lesser General Public License Usage |
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** Alternatively, this file may be used under the terms of the GNU Lesser |
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** General Public License version 2.1 as published by the Free Software |
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** Foundation and appearing in the file LICENSE.LGPL included in the |
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** packaging of this file. Please review the following information to |
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** ensure the GNU Lesser General Public License version 2.1 requirements |
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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** |
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** In addition, as a special exception, Nokia gives you certain additional |
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** rights. These rights are described in the Nokia Qt LGPL Exception |
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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** |
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** If you have questions regarding the use of this file, please contact |
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** Nokia at qt-info@nokia.com. |
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** |
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** |
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** |
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** |
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** |
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** |
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** |
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** |
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** $QT_END_LICENSE$ |
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** |
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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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|
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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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|
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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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|
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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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|
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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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|
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Cloud *item = new Cloud(config); |
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configurations.insert(config.identifier(), item); |
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|
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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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|
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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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|
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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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197 |