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blockingclient.cpp Example File

 ** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
 ** Contact: Qt Software Information (qt-info@nokia.com)
 ** This file is part of the example classes of the Qt Toolkit.
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 #include <QtGui>
 #include <QtNetwork>

 #include "blockingclient.h"

 BlockingClient::BlockingClient(QWidget *parent)
     : QDialog(parent)
     hostLabel = new QLabel(tr("&Server name:"));
     portLabel = new QLabel(tr("S&erver port:"));

     hostLineEdit = new QLineEdit("Localhost");
     portLineEdit = new QLineEdit;
     portLineEdit->setValidator(new QIntValidator(1, 65535, this));


     statusLabel = new QLabel(tr("This examples requires that you run the "
                                 "Fortune Server example as well."));

     getFortuneButton = new QPushButton(tr("Get Fortune"));

     quitButton = new QPushButton(tr("Quit"));

     buttonBox = new QDialogButtonBox;
     buttonBox->addButton(getFortuneButton, QDialogButtonBox::ActionRole);
     buttonBox->addButton(quitButton, QDialogButtonBox::RejectRole);

     connect(hostLineEdit, SIGNAL(textChanged(const QString &)),
             this, SLOT(enableGetFortuneButton()));
     connect(portLineEdit, SIGNAL(textChanged(const QString &)),
             this, SLOT(enableGetFortuneButton()));
     connect(getFortuneButton, SIGNAL(clicked()),
             this, SLOT(requestNewFortune()));
     connect(quitButton, SIGNAL(clicked()), this, SLOT(close()));
     connect(&thread, SIGNAL(newFortune(const QString &)),
             this, SLOT(showFortune(const QString &)));
     connect(&thread, SIGNAL(error(int, const QString &)),
             this, SLOT(displayError(int, const QString &)));

     QGridLayout *mainLayout = new QGridLayout;
     mainLayout->addWidget(hostLabel, 0, 0);
     mainLayout->addWidget(hostLineEdit, 0, 1);
     mainLayout->addWidget(portLabel, 1, 0);
     mainLayout->addWidget(portLineEdit, 1, 1);
     mainLayout->addWidget(statusLabel, 2, 0, 1, 2);
     mainLayout->addWidget(buttonBox, 3, 0, 1, 2);

     setWindowTitle(tr("Blocking Fortune Client"));

 void BlockingClient::requestNewFortune()

 void BlockingClient::showFortune(const QString &nextFortune)
     if (nextFortune == currentFortune) {

     currentFortune = nextFortune;

 void BlockingClient::displayError(int socketError, const QString &message)
     switch (socketError) {
     case QAbstractSocket::HostNotFoundError:
         QMessageBox::information(this, tr("Blocking Fortune Client"),
                                  tr("The host was not found. Please check the "
                                     "host and port settings."));
     case QAbstractSocket::ConnectionRefusedError:
         QMessageBox::information(this, tr("Blocking Fortune Client"),
                                  tr("The connection was refused by the peer. "
                                     "Make sure the fortune server is running, "
                                     "and check that the host name and port "
                                     "settings are correct."));
         QMessageBox::information(this, tr("Blocking Fortune Client"),
                                  tr("The following error occurred: %1.")


 void BlockingClient::enableGetFortuneButton()
                                  && !portLineEdit->text().isEmpty());

Copyright © 2008 Nokia Trademarks
Qt 4.4.3