qt 6.5.1 original

examples/network/fortuneserver/CMakeLists.txt

@@ -0,0 +1,38 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+cmake_minimum_required(VERSION 3.16)
+project(fortuneserver LANGUAGES CXX)
+
+if(NOT DEFINED INSTALL_EXAMPLESDIR)
+    set(INSTALL_EXAMPLESDIR "examples")
+endif()
+
+set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/network/fortuneserver")
+
+find_package(Qt6 REQUIRED COMPONENTS Core Gui Network Widgets)
+
+qt_standard_project_setup()
+
+qt_add_executable(fortuneserver
+    main.cpp
+    server.cpp server.h
+)
+
+set_target_properties(fortuneserver PROPERTIES
+    WIN32_EXECUTABLE TRUE
+    MACOSX_BUNDLE TRUE
+)
+
+target_link_libraries(fortuneserver PRIVATE
+    Qt6::Core
+    Qt6::Gui
+    Qt6::Network
+    Qt6::Widgets
+)
+
+install(TARGETS fortuneserver
+    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
+    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
+    LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}"
+)

examples/network/fortuneserver/fortuneserver.pro

@@ -0,0 +1,9 @@
+QT += network widgets
+
+HEADERS       = server.h
+SOURCES       = server.cpp \
+                main.cpp
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/network/fortuneserver
+INSTALLS += target

examples/network/fortuneserver/main.cpp

@@ -0,0 +1,15 @@
+// Copyright (C) 2017 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include <QApplication>
+
+#include "server.h"
+
+int main(int argc, char *argv[])
+{
+    QApplication app(argc, argv);
+    QApplication::setApplicationDisplayName(Server::tr("Fortune Server"));
+    Server server;
+    server.show();
+    return app.exec();
+}

examples/network/fortuneserver/server.cpp

@@ -0,0 +1,111 @@
+// Copyright (C) 2017 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include <QtWidgets>
+#include <QtNetwork>
+#include <QtCore>
+
+#include "server.h"
+
+Server::Server(QWidget *parent)
+    : QDialog(parent)
+    , statusLabel(new QLabel)
+{
+    statusLabel->setTextInteractionFlags(Qt::TextBrowserInteraction);
+
+    initServer();
+
+    //! [2]
+    fortunes << tr("You've been leading a dog's life. Stay off the furniture.")
+             << tr("You've got to think about tomorrow.")
+             << tr("You will be surprised by a loud noise.")
+             << tr("You will feel hungry again in another hour.")
+             << tr("You might have mail.")
+             << tr("You cannot kill time without injuring eternity.")
+             << tr("Computers are not intelligent. They only think they are.");
+    //! [2]
+    auto quitButton = new QPushButton(tr("Quit"));
+    quitButton->setAutoDefault(false);
+    connect(quitButton, &QAbstractButton::clicked, this, &QWidget::close);
+    //! [3]
+    connect(tcpServer, &QTcpServer::newConnection, this, &Server::sendFortune);
+    //! [3]
+
+    auto buttonLayout = new QHBoxLayout;
+    buttonLayout->addStretch(1);
+    buttonLayout->addWidget(quitButton);
+    buttonLayout->addStretch(1);
+
+    QVBoxLayout *mainLayout = nullptr;
+    if (QGuiApplication::styleHints()->showIsFullScreen() || QGuiApplication::styleHints()->showIsMaximized()) {
+        auto outerVerticalLayout = new QVBoxLayout(this);
+        outerVerticalLayout->addItem(new QSpacerItem(0, 0, QSizePolicy::Ignored, QSizePolicy::MinimumExpanding));
+        auto outerHorizontalLayout = new QHBoxLayout;
+        outerHorizontalLayout->addItem(new QSpacerItem(0, 0, QSizePolicy::MinimumExpanding, QSizePolicy::Ignored));
+        auto groupBox = new QGroupBox(QGuiApplication::applicationDisplayName());
+        mainLayout = new QVBoxLayout(groupBox);
+        outerHorizontalLayout->addWidget(groupBox);
+        outerHorizontalLayout->addItem(new QSpacerItem(0, 0, QSizePolicy::MinimumExpanding, QSizePolicy::Ignored));
+        outerVerticalLayout->addLayout(outerHorizontalLayout);
+        outerVerticalLayout->addItem(new QSpacerItem(0, 0, QSizePolicy::Ignored, QSizePolicy::MinimumExpanding));
+    } else {
+        mainLayout = new QVBoxLayout(this);
+    }
+
+    mainLayout->addWidget(statusLabel);
+    mainLayout->addLayout(buttonLayout);
+
+    setWindowTitle(QGuiApplication::applicationDisplayName());
+}
+
+void Server::initServer()
+{
+//! [0] //! [1]
+    tcpServer = new QTcpServer(this);
+    if (!tcpServer->listen()) {
+        QMessageBox::critical(this, tr("Fortune Server"),
+                              tr("Unable to start the server: %1.")
+                              .arg(tcpServer->errorString()));
+        close();
+        return;
+    }
+//! [0]
+    QString ipAddress;
+    const QList<QHostAddress> ipAddressesList = QNetworkInterface::allAddresses();
+    // use the first non-localhost IPv4 address
+    for (const QHostAddress &entry : ipAddressesList) {
+        if (entry != QHostAddress::LocalHost && entry.toIPv4Address()) {
+            ipAddress = entry.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(tcpServer->serverPort()));
+//! [1]
+}
+
+//! [4]
+void Server::sendFortune()
+{
+//! [5]
+    QByteArray block;
+    QDataStream out(&block, QIODevice::WriteOnly);
+    out.setVersion(QDataStream::Qt_6_5);
+
+    out << fortunes[QRandomGenerator::global()->bounded(fortunes.size())];
+//! [4] //! [7]
+
+    QTcpSocket *clientConnection = tcpServer->nextPendingConnection();
+    connect(clientConnection, &QAbstractSocket::disconnected,
+            clientConnection, &QObject::deleteLater);
+//! [7] //! [8]
+
+    clientConnection->write(block);
+    clientConnection->disconnectFromHost();
+//! [5]
+}
+//! [8]

examples/network/fortuneserver/server.h

@@ -0,0 +1,36 @@
+// Copyright (C) 2017 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#ifndef SERVER_H
+#define SERVER_H
+
+#include <QDialog>
+#include <QString>
+#include <QList>
+
+QT_BEGIN_NAMESPACE
+class QLabel;
+class QTcpServer;
+QT_END_NAMESPACE
+
+//! [0]
+class Server : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit Server(QWidget *parent = nullptr);
+
+private slots:
+    void sendFortune();
+
+private:
+    void initServer();
+
+    QLabel *statusLabel = nullptr;
+    QTcpServer *tcpServer = nullptr;
+    QList<QString> fortunes;
+};
+//! [0]
+
+#endif