Qt 4.3: main.cpp Example File (demos/sqlbrowser/main.cpp)

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# main.cpp Example File
demos/sqlbrowser/main.cpp

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     #include "browser.h"

     #include <QtCore>
     #include <QtGui>
     #include <QtSql>

     void addConnectionsFromCommandline(const QStringList &args, Browser *browser)
     {
         for (int i = 1; i < args.count(); ++i) {
             QUrl url(args.at(i), QUrl::TolerantMode);
             if (!url.isValid()) {
                 qWarning("Invalid URL: %s", qPrintable(args.at(i)));
                 continue;
             }
             QSqlError err = browser->addConnection(url.scheme(), url.path().mid(1), url.host(),
                                                    url.userName(), url.password(), url.port(-1));
             if (err.type() != QSqlError::NoError)
                 qDebug() << "Unable to open connection:" << err;
         }
     }

     int main(int argc, char *argv[])
     {
         QApplication app(argc, argv);

         QMainWindow mainWin;
         mainWin.setWindowTitle(QObject::tr("Qt SQL Browser"));

         Browser browser(&mainWin);
         mainWin.setCentralWidget(&browser);

         QMenu *fileMenu = mainWin.menuBar()->addMenu(QObject::tr("&File"));
         fileMenu->addAction(QObject::tr("Add &Connection..."), &browser, SLOT(addConnection()));
         fileMenu->addSeparator();
         fileMenu->addAction(QObject::tr("&Quit"), &app, SLOT(quit()));

         QMenu *helpMenu = mainWin.menuBar()->addMenu(QObject::tr("&Help"));
         helpMenu->addAction(QObject::tr("About"), &browser, SLOT(about()));
         helpMenu->addAction(QObject::tr("About Qt"), qApp, SLOT(aboutQt()));

         QObject::connect(&browser, SIGNAL(statusMessage(QString)),
                          mainWin.statusBar(), SLOT(showMessage(QString)));

         addConnectionsFromCommandline(app.arguments(), &browser);
         mainWin.show();
         if (QSqlDatabase::connectionNames().isEmpty())
             QMetaObject::invokeMethod(&browser, "addConnection", Qt::QueuedConnection);

         return app.exec();
     }