main.cpp Example File

twittertimeline/main.cpp
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 #include "ui_twitterdialog.h"
 #include "twittertimelinemodel.h"

 #include <functional>

 #include <QUrl>
 #include <QApplication>
 #include <QNetworkReply>
 #include <QNetworkRequest>
 #include <QCommandLineParser>
 #include <QCommandLineOption>

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

     app.setApplicationName("Twitter Timeline");
     app.setApplicationDisplayName("Twitter Timeline");
     app.setOrganizationDomain("qt.io");
     app.setOrganizationName("The Qt Company");

     QCommandLineParser parser;
     QCommandLineOption token(QStringList() << "k" << "consumer-key",
                              "Application consumer key", "key");
     QCommandLineOption secret(QStringList() << "s" << "consumer-secret",
                               "Application consumer secret", "secret");
     QCommandLineOption connect(QStringList() << "c" << "connect",
                                "Connects to twitter. Requires consumer-key and consumer-secret");

     parser.addOptions({ token, secret, connect });
     parser.process(app);

     struct TwitterDialog : QDialog, Ui::TwitterDialog {
         TwitterTimelineModel model;

         TwitterDialog()
             : QDialog()
         {
             setupUi(this);
             view->setModel(&model);
             view->horizontalHeader()->hideSection(0);
             view->horizontalHeader()->hideSection(1);
         }
     } twitterDialog;

     const auto authenticate = [&]() {
         const auto clientIdentifier = twitterDialog.clientIdLineEdit->text();
         const auto clientSharedSecret = twitterDialog.clientSecretLineEdit->text();
         twitterDialog.model.authenticate(qMakePair(clientIdentifier, clientSharedSecret));
     };
     const auto buttonSlot = [&]() {
         if (twitterDialog.model.status() == Twitter::Status::Granted)
             twitterDialog.model.updateTimeline();
         else
             authenticate();
     };

     twitterDialog.clientIdLineEdit->setText(parser.value(token));
     twitterDialog.clientSecretLineEdit->setText(parser.value(secret));
     if (parser.isSet(connect)) {
         if (parser.value(token).isEmpty() || parser.value(secret).isEmpty()) {
             parser.showHelp();
         } else {
             authenticate();
             twitterDialog.view->setFocus();
         }
     }

     QObject::connect(twitterDialog.pushButton, &QPushButton::clicked, buttonSlot);
     QObject::connect(&twitterDialog.model, &TwitterTimelineModel::authenticated,
                      std::bind(&QPushButton::setText, twitterDialog.pushButton, "&Update"));

     twitterDialog.show();
     return app.exec();
 }