dialog.cpp Example File

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  #include <QtWidgets>
  #include <QtNetwork>

  #include <stdlib.h>

  #include "dialog.h"
  #include "fortuneserver.h"

  Dialog::Dialog(QWidget *parent)
      : QWidget(parent)
  {
      statusLabel = new QLabel;
      statusLabel->setWordWrap(true);
      quitButton = new QPushButton(tr("Quit"));
      quitButton->setAutoDefault(false);

      if (!server.listen()) {
          QMessageBox::critical(this, tr("Threaded Fortune Server"),
                                tr("Unable to start the server: %1.")
                                .arg(server.errorString()));
          close();
          return;
      }

      QString ipAddress;
      QList<QHostAddress> ipAddressesList = QNetworkInterface::allAddresses();
      // use the first non-localhost IPv4 address
      for (int i = 0; i < ipAddressesList.size(); ++i) {
          if (ipAddressesList.at(i) != QHostAddress::LocalHost &&
              ipAddressesList.at(i).toIPv4Address()) {
              ipAddress = ipAddressesList.at(i).toString();
              break;
          }
      }
      // if we did not find one, use IPv4 localhost
      if (ipAddress.isEmpty())
          ipAddress = QHostAddress(QHostAddress::LocalHost).toString();
      statusLabel->setText(tr("The server is running on\n\nIP: %1\nport: %2\n\n"
                              "Run the Fortune Client example now.")
                           .arg(ipAddress).arg(server.serverPort()));

      connect(quitButton, SIGNAL(clicked()), this, SLOT(close()));

      QHBoxLayout *buttonLayout = new QHBoxLayout;
      buttonLayout->addStretch(1);
      buttonLayout->addWidget(quitButton);
      buttonLayout->addStretch(1);

      QVBoxLayout *mainLayout = new QVBoxLayout;
      mainLayout->addWidget(statusLabel);
      mainLayout->addLayout(buttonLayout);
      setLayout(mainLayout);
      setWindowTitle(tr("Threaded Fortune Server"));
  }