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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the Qt Mobility Components. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 #include "bearercloud.h" |
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43 #include "cloud.h" |
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44 |
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45 #include <QGraphicsTextItem> |
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46 #include <QTimer> |
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47 #include <QDateTime> |
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48 #include <QHostInfo> |
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49 |
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50 #include <QDebug> |
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51 |
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52 #include <math.h> |
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53 |
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54 #ifndef M_PI |
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55 #define M_PI 3.14159265358979323846 |
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56 #endif |
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57 |
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58 //! [0] |
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59 BearerCloud::BearerCloud(QObject *parent) |
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60 : QGraphicsScene(parent), timerId(0) |
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61 { |
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62 setSceneRect(-300, -300, 600, 600); |
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63 |
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64 qsrand(QDateTime::currentDateTime().toTime_t()); |
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65 |
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66 offset[QNetworkConfiguration::Active] = 2 * M_PI * qrand() / RAND_MAX; |
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67 offset[QNetworkConfiguration::Discovered] = offset[QNetworkConfiguration::Active] + M_PI / 6; |
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68 offset[QNetworkConfiguration::Defined] = offset[QNetworkConfiguration::Discovered] - M_PI / 6; |
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69 offset[QNetworkConfiguration::Undefined] = offset[QNetworkConfiguration::Undefined] + M_PI / 6; |
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70 |
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71 thisDevice = new QGraphicsTextItem(QHostInfo::localHostName()); |
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72 thisDevice->setData(0, QLatin1String("This Device")); |
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73 thisDevice->setPos(thisDevice->boundingRect().width() / -2, |
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74 thisDevice->boundingRect().height() / -2); |
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75 addItem(thisDevice); |
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76 |
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77 qreal radius = Cloud::getRadiusForState(QNetworkConfiguration::Active); |
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78 QGraphicsEllipseItem *orbit = new QGraphicsEllipseItem(-radius, -radius, 2*radius, 2*radius); |
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79 orbit->setPen(QColor(Qt::green)); |
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80 addItem(orbit); |
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81 radius = Cloud::getRadiusForState(QNetworkConfiguration::Discovered); |
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82 orbit = new QGraphicsEllipseItem(-radius, -radius, 2*radius, 2*radius); |
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83 orbit->setPen(QColor(Qt::blue)); |
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84 addItem(orbit); |
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85 radius = Cloud::getRadiusForState(QNetworkConfiguration::Defined); |
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86 orbit = new QGraphicsEllipseItem(-radius, -radius, 2*radius, 2*radius); |
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87 orbit->setPen(QColor(Qt::darkGray)); |
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88 addItem(orbit); |
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89 radius = Cloud::getRadiusForState(QNetworkConfiguration::Undefined); |
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90 orbit = new QGraphicsEllipseItem(-radius, -radius, 2*radius, 2*radius); |
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91 orbit->setPen(QColor(Qt::lightGray)); |
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92 addItem(orbit); |
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93 |
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94 connect(&manager, SIGNAL(configurationAdded(QNetworkConfiguration)), |
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95 this, SLOT(configurationAdded(QNetworkConfiguration))); |
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96 connect(&manager, SIGNAL(configurationRemoved(QNetworkConfiguration)), |
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97 this, SLOT(configurationRemoved(QNetworkConfiguration))); |
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98 connect(&manager, SIGNAL(configurationChanged(QNetworkConfiguration)), |
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99 this, SLOT(configurationChanged(QNetworkConfiguration))); |
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100 |
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101 QTimer::singleShot(0, this, SLOT(updateConfigurations())); |
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102 } |
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103 //! [0] |
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104 |
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105 BearerCloud::~BearerCloud() |
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106 { |
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107 } |
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108 |
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109 void BearerCloud::cloudMoved() |
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110 { |
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111 if (!timerId) |
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112 timerId = startTimer(1000 / 25); |
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113 } |
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114 |
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115 void BearerCloud::timerEvent(QTimerEvent *) |
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116 { |
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117 QList<Cloud *> clouds; |
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118 foreach (QGraphicsItem *item, items()) { |
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119 if (Cloud *cloud = qgraphicsitem_cast<Cloud *>(item)) |
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120 clouds << cloud; |
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121 } |
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122 |
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123 foreach (Cloud *cloud, clouds) |
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124 cloud->calculateForces(); |
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125 |
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126 bool cloudsMoved = false; |
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127 foreach (Cloud *cloud, clouds) |
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128 cloudsMoved |= cloud->advance(); |
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129 |
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130 if (!cloudsMoved) { |
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131 killTimer(timerId); |
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132 timerId = 0; |
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133 } |
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134 } |
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135 |
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136 //! [2] |
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137 void BearerCloud::configurationAdded(const QNetworkConfiguration &config) |
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138 { |
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139 const QNetworkConfiguration::StateFlags state = config.state(); |
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140 |
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141 configStates.insert(state, config.identifier()); |
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142 |
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143 const qreal radius = Cloud::getRadiusForState(state); |
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144 const int count = configStates.count(state); |
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145 const qreal angle = 2 * M_PI / count; |
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146 |
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147 Cloud *item = new Cloud(config); |
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148 configurations.insert(config.identifier(), item); |
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149 |
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150 item->setPos(radius * cos((count-1) * angle + offset[state]), |
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151 radius * sin((count-1) * angle + offset[state])); |
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152 |
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153 addItem(item); |
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154 |
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155 cloudMoved(); |
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156 } |
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157 //! [2] |
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158 |
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159 //! [3] |
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160 void BearerCloud::configurationRemoved(const QNetworkConfiguration &config) |
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161 { |
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162 foreach (const QNetworkConfiguration::StateFlags &state, configStates.uniqueKeys()) |
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163 configStates.remove(state, config.identifier()); |
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164 |
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165 Cloud *item = configurations.take(config.identifier()); |
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166 |
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167 item->setFinalScale(0.0); |
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168 item->setDeleteAfterAnimation(true); |
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169 |
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170 cloudMoved(); |
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171 } |
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172 //! [3] |
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173 |
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174 //! [4] |
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175 void BearerCloud::configurationChanged(const QNetworkConfiguration &config) |
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176 { |
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177 foreach (const QNetworkConfiguration::StateFlags &state, configStates.uniqueKeys()) |
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178 configStates.remove(state, config.identifier()); |
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179 |
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180 configStates.insert(config.state(), config.identifier()); |
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181 |
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182 cloudMoved(); |
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183 } |
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184 //! [4] |
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185 |
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186 //! [1] |
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187 void BearerCloud::updateConfigurations() |
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188 { |
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189 QList<QNetworkConfiguration> allConfigurations = manager.allConfigurations(); |
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190 |
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191 while (!allConfigurations.isEmpty()) |
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192 configurationAdded(allConfigurations.takeFirst()); |
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193 |
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194 cloudMoved(); |
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195 } |
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196 //! [1] |
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197 |