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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 <QtGui> |
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43 #include <QtWebKit> |
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44 |
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45 #include <qgeopositioninfosource.h> |
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46 #include <qnmeapositioninfosource.h> |
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47 #include <qgeosatelliteinfosource.h> |
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48 #include <qnetworksession.h> |
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49 #include <qnetworkconfigmanager.h> |
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50 |
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51 #include "satellitedialog.h" |
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52 |
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53 #include "mapwindow.h" |
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54 |
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55 // Use the special 'localhost' key for the Google Maps key |
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56 const QString GMAPS_STATICMAP_URL_TEMPLATE = "http://maps.google.com/staticmap?center=%1,%2&zoom=14&size=%3x%4&map type=mobile&markers=%1,%2&key=ABQIAAAAnfs7bKE82qgb3Zc2YyS-oBT2yXp_ZAY8_ufC3CFXhHIE1NvwkxSySz_REpPq-4WZA27OwgbtyR3VcA&sensor=false"; |
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57 |
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58 |
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59 MapWindow::MapWindow(QWidget *parent, Qt::WFlags flags) |
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60 : QMainWindow(parent, flags), |
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61 webView(new QWebView), |
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62 posLabel(new QLabel), |
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63 headingAndSpeedLabel(new QLabel), |
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64 dateTimeLabel(new QLabel), |
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65 loading(false), |
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66 usingLogFile(false), |
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67 location(0), |
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68 waitingForFix(false) |
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69 { |
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70 location = QGeoPositionInfoSource::createDefaultSource(this); |
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71 if (!location) { |
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72 QNmeaPositionInfoSource *nmeaSource = new QNmeaPositionInfoSource(QNmeaPositionInfoSource::SimulationMode, this); |
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73 QFile *logFile = new QFile(QApplication::applicationDirPath() |
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74 + QDir::separator() + "nmealog.txt", this); |
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75 nmeaSource->setDevice(logFile); |
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76 location = nmeaSource; |
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77 |
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78 usingLogFile = true; |
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79 } |
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80 |
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81 location->setUpdateInterval(5000); |
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82 connect(location, SIGNAL(positionUpdated(QGeoPositionInfo)), |
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83 this, SLOT(positionUpdated(QGeoPositionInfo))); |
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84 |
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85 connect(webView, SIGNAL(loadStarted()), this, SLOT(loadStarted())); |
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86 connect(webView, SIGNAL(loadFinished(bool)), this, SLOT(loadFinished(bool))); |
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87 |
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88 QWidget *mainWidget = new QWidget; |
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89 QVBoxLayout *layout = new QVBoxLayout(mainWidget); |
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90 layout->addWidget(webView); |
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91 layout->addWidget(posLabel); |
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92 layout->addWidget(headingAndSpeedLabel); |
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93 layout->addWidget(dateTimeLabel); |
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94 setCentralWidget(mainWidget); |
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95 |
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96 #if !defined(Q_OS_SYMBIAN) |
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97 resize(300, 300); |
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98 #endif |
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99 setWindowTitle(tr("Google Maps Demo")); |
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100 |
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101 QTimer::singleShot(0, this, SLOT(delayedInit())); |
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102 } |
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103 |
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104 MapWindow::~MapWindow() |
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105 { |
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106 location->stopUpdates(); |
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107 session->close(); |
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108 } |
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109 |
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110 void MapWindow::delayedInit() |
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111 { |
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112 if (usingLogFile) { |
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113 QMessageBox::information(this, tr("Fetch Google Maps"), |
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114 tr("No GPS support detected, using GPS data from a sample log file instead.")); |
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115 } else { |
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116 waitForFix(); |
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117 location->stopUpdates(); |
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118 } |
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119 |
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120 // Set Internet Access Point |
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121 QNetworkConfigurationManager manager; |
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122 const bool canStartIAP = (manager.capabilities() |
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123 & QNetworkConfigurationManager::CanStartAndStopInterfaces); |
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124 // Is there default access point, use it |
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125 QNetworkConfiguration cfg = manager.defaultConfiguration(); |
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126 if (!cfg.isValid() || (!canStartIAP && cfg.state() != QNetworkConfiguration::Active)) { |
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127 QMessageBox::information(this, tr("Flickr Demo"), tr( |
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128 "Available Access Points not found.")); |
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129 return; |
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130 } |
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131 |
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132 session = new QNetworkSession(cfg, this); |
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133 session->open(); |
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134 session->waitForOpened(-1); |
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135 |
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136 connect(location, SIGNAL(updateTimeout()), this, SLOT(waitForFix())); |
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137 |
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138 location->startUpdates(); |
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139 } |
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140 |
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141 // Brings up a satellite strength dialog box until a position fix is received. |
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142 // This will also start the position updates if they are not already started. |
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143 void MapWindow::waitForFix() { |
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144 if (waitingForFix) |
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145 return; |
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146 |
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147 waitingForFix = true; |
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148 |
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149 QGeoSatelliteInfoSource *satellite = QGeoSatelliteInfoSource::createDefaultSource(this); |
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150 |
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151 if (satellite) { |
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152 SatelliteDialog *dialog = new SatelliteDialog(this, |
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153 30, |
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154 SatelliteDialog::ExitOnFixOrCancel, |
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155 SatelliteDialog::OrderByPrnNumber, |
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156 SatelliteDialog::ScaleToMaxPossible); |
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157 |
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158 dialog->connectSources(location, satellite); |
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159 |
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160 location->startUpdates(); |
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161 satellite->startUpdates(); |
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162 |
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163 dialog->exec(); |
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164 |
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165 satellite->stopUpdates(); |
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166 |
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167 delete dialog; |
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168 delete satellite; |
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169 } |
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170 |
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171 waitingForFix = false; |
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172 } |
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173 |
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174 void MapWindow::start() |
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175 { |
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176 location->startUpdates(); |
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177 } |
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178 |
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179 void MapWindow::positionUpdated(const QGeoPositionInfo &info) |
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180 { |
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181 QString heading = "?"; |
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182 QString speed = "?"; |
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183 if (info.hasAttribute(QGeoPositionInfo::Direction)) |
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184 heading = QString("%1%2").arg(info.attribute(QGeoPositionInfo::Direction)).arg(QChar(0x00b0)); |
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185 if (info.hasAttribute(QGeoPositionInfo::GroundSpeed)) |
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186 speed = QString::number(info.attribute(QGeoPositionInfo::GroundSpeed) * 3.6, 'f', 1); |
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187 posLabel->setText(tr("Position: %1").arg(info.coordinate().toString())); |
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188 headingAndSpeedLabel->setText(tr("Bearing %1, travelling at %2 km/h").arg(heading).arg(speed)); |
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189 |
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190 dateTimeLabel->setText(tr("(Last update: %1)"). |
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191 arg(info.dateTime().toLocalTime().time().toString())); |
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192 |
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193 if (!loading) { |
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194 // Google Maps does not provide maps larger than 640x480 |
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195 int width = qMin(webView->width(), 640); |
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196 int height = qMin(webView->height(), 480); |
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197 QString url = GMAPS_STATICMAP_URL_TEMPLATE |
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198 .arg(QString::number(info.coordinate().latitude())) |
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199 .arg(QString::number(info.coordinate().longitude())) |
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200 .arg(QString::number(width)) |
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201 .arg(QString::number(height)); |
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202 webView->load(url); |
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203 } |
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204 } |
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205 |
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206 void MapWindow::loadStarted() |
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207 { |
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208 loading = true; |
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209 webView->setUpdatesEnabled(false); |
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210 } |
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211 |
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212 void MapWindow::loadFinished(bool) |
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213 { |
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214 loading = false; |
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215 webView->setUpdatesEnabled(true); |
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216 } |