main.cpp Example File

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  #include "browser.h"

  #include <QtCore>
  #include <QtWidgets>
  #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.addConnection(); });
      fileMenu->addSeparator();
      fileMenu->addAction(QObject::tr("&Quit"), []() { qApp->quit(); });

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

      QObject::connect(&browser, &Browser::statusMessage, [&mainWin](const QString &text) {
          mainWin.statusBar()->showMessage(text);
      });

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

      return app.exec();
  }