Slitaz -- Qt / aqp / weathertrayicon

Advanced Qt Programming by Mark Summerfield
ISBN: 978-0321635907

 weathertrayicon.cpp
[..]
void WeatherTrayIcon::createContextMenu()
{
    QStringList airports;
    airports << "Austin-Bergstrom International Airport (KAUS)"
             << "Chicago/Ohare (KORD)"
             << "Dallas / Fort Worth International Airport (KDFW)"
             << "Detroit City Airport (KDET)"
             << "Houston Intercontinental Airport (KIAH)"
             << "Indianapolis International Airport (KIND)"
             << "Jacksonville International Airport (KJAX)"
             << "Los Angeles Intl Airport (KLAX)"
             << "New York/John F. Kennedy Intl Airport (KJFK)"
             << "Philadelphia International Airport (KPHL)"
             << "Phoenix/Sky Harbor (KPHX)"
             << "Port Columbus International Airport (KCMH)"
             << "San Antonio International Airport (KSAT)"
             << "San Diego/Brown Fld (KSDM)"
             << "San Francisco Intl Airport (KSFO)"
             << "San Jose International Airport (KSJC)";
    QSettings settings;
    airport = settings.value("airport", QVariant(airports.at(0)))
                             .toString();

    QActionGroup *group = new QActionGroup(this);
    foreach (const QString &anAirport, airports) {
        QAction *action = menu.addAction(anAirport);
        group->addAction(action);
        action->setCheckable(true);
        action->setChecked(anAirport == airport);
        action->setData(anAirport);
    }
    connect(group, SIGNAL(triggered(QAction*)),
            this, SLOT(setAirport(QAction*)));
    menu.addSeparator();
    menu.addAction(QIcon(":/exit.png"), tr("E&xit"), qApp,
                   SLOT(quit()));

    AQP::accelerateMenu(&menu);
    setContextMenu(&menu);
}

void WeatherTrayIcon::requestXml()
{
#ifdef NO_REGEX
    QString airportId = airport.right(6);
    if (airportId.startsWith("(") && airportId.endsWith(")")) {
        QString url = QString("http://www.weather.gov/xml/"
                "current_obs/%1.xml").arg(airportId.mid(1, 4));
        networkXmlAccess->get(QNetworkRequest(QUrl(url)));
    }
#else
    QRegExp airportIdRx("^.*[(]([A-Z]{4})[)]$");
    airportIdRx.setPatternSyntax(QRegExp::RegExp2);
    if (airportIdRx.exactMatch(airport)) {
        QString url = QString("http://www.weather.gov/xml/"
                "current_obs/%1.xml").arg(airportIdRx.cap(1));
        networkXmlAccess->get(QNetworkRequest(QUrl(url)));
    }
#endif
    setToolTip(tr("Failed to connect to network.\n"
            "A proxy can be set on the command line:\n"
            "weathertrayicon --help"));
}

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