Long live Qt!

6 files changed, 515 insertions, 0 deletions

diff --git a/examples/network/blockingfortuneclient/blockingclient.cpp b/examples/network/blockingfortuneclient/blockingclient.cpp
new file mode 100644
index 0000000..207ff5f
--- /dev/null
+++ b/examples/network/blockingfortuneclient/blockingclient.cpp
@@ -0,0 +1,154 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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));
+
+    hostLabel->setBuddy(hostLineEdit);
+    portLabel->setBuddy(portLineEdit);
+
+    statusLabel = new QLabel(tr("This examples requires that you run the "
+                                "Fortune Server example as well."));
+
+    getFortuneButton = new QPushButton(tr("Get Fortune"));
+    getFortuneButton->setDefault(true);
+    getFortuneButton->setEnabled(false);
+
+    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()));
+//! [0]
+    connect(&thread, SIGNAL(newFortune(const QString &)),
+            this, SLOT(showFortune(const QString &)));
+//! [0] //! [1]
+    connect(&thread, SIGNAL(error(int, const QString &)),
+            this, SLOT(displayError(int, const QString &)));
+//! [1]
+
+    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);
+    setLayout(mainLayout);
+
+    setWindowTitle(tr("Blocking Fortune Client"));
+    portLineEdit->setFocus();
+}
+
+//! [2]
+void BlockingClient::requestNewFortune()
+{
+    getFortuneButton->setEnabled(false);
+    thread.requestNewFortune(hostLineEdit->text(),
+                             portLineEdit->text().toInt());
+}
+//! [2]
+
+//! [3]
+void BlockingClient::showFortune(const QString &nextFortune)
+{
+    if (nextFortune == currentFortune) {
+        requestNewFortune();
+        return;
+    }
+//! [3]
+
+//! [4]
+    currentFortune = nextFortune;
+    statusLabel->setText(currentFortune);
+    getFortuneButton->setEnabled(true);
+}
+//! [4]
+
+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."));
+        break;
+    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."));
+        break;
+    default:
+        QMessageBox::information(this, tr("Blocking Fortune Client"),
+                                 tr("The following error occurred: %1.")
+                                 .arg(message));
+    }
+
+    getFortuneButton->setEnabled(true);
+}
+
+void BlockingClient::enableGetFortuneButton()
+{
+    getFortuneButton->setEnabled(!hostLineEdit->text().isEmpty()
+                                 && !portLineEdit->text().isEmpty());
+}
diff --git a/examples/network/blockingfortuneclient/blockingclient.h b/examples/network/blockingfortuneclient/blockingclient.h
new file mode 100644
index 0000000..2bc0b80
--- /dev/null
+++ b/examples/network/blockingfortuneclient/blockingclient.h
@@ -0,0 +1,85 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef BLOCKINGCLIENT_H
+#define BLOCKINGCLIENT_H
+
+#include <QDialog>
+
+#include "fortunethread.h"
+
+QT_BEGIN_NAMESPACE
+class QDialogButtonBox;
+class QLabel;
+class QLineEdit;
+class QPushButton;
+QT_END_NAMESPACE
+
+//! [0]
+class BlockingClient : public QDialog
+{
+    Q_OBJECT
+
+public:
+    BlockingClient(QWidget *parent = 0);
+
+private slots:
+    void requestNewFortune();
+    void showFortune(const QString &fortune);
+    void displayError(int socketError, const QString &message);
+    void enableGetFortuneButton();
+
+private:
+    QLabel *hostLabel;
+    QLabel *portLabel;
+    QLineEdit *hostLineEdit;
+    QLineEdit *portLineEdit;
+    QLabel *statusLabel;
+    QPushButton *getFortuneButton;
+    QPushButton *quitButton;
+    QDialogButtonBox *buttonBox;
+
+    FortuneThread thread;
+    QString currentFortune;
+};
+//! [0]
+
+#endif
diff --git a/examples/network/blockingfortuneclient/blockingfortuneclient.pro b/examples/network/blockingfortuneclient/blockingfortuneclient.pro
new file mode 100644
index 0000000..fa146fa
--- /dev/null
+++ b/examples/network/blockingfortuneclient/blockingfortuneclient.pro
@@ -0,0 +1,12 @@
+HEADERS       = blockingclient.h \
+                fortunethread.h
+SOURCES       = blockingclient.cpp \
+                main.cpp \
+                fortunethread.cpp
+QT           += network
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/network/blockingfortuneclient
+sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS blockingfortuneclient.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/network/blockingfortuneclient
+INSTALLS += target sources
diff --git a/examples/network/blockingfortuneclient/fortunethread.cpp b/examples/network/blockingfortuneclient/fortunethread.cpp
new file mode 100644
index 0000000..af1c612
--- /dev/null
+++ b/examples/network/blockingfortuneclient/fortunethread.cpp
@@ -0,0 +1,138 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtNetwork>
+
+#include "fortunethread.h"
+
+FortuneThread::FortuneThread(QObject *parent)
+    : QThread(parent), quit(false)
+{
+}
+
+//! [0]
+FortuneThread::~FortuneThread()
+{
+    mutex.lock();
+    quit = true;
+    cond.wakeOne();
+    mutex.unlock();
+    wait();
+}
+//! [0]
+
+//! [1] //! [2]
+void FortuneThread::requestNewFortune(const QString &hostName, quint16 port)
+{
+//! [1]
+    QMutexLocker locker(&mutex);
+    this->hostName = hostName;
+    this->port = port;
+//! [3]
+    if (!isRunning())
+        start();
+    else
+        cond.wakeOne();
+}
+//! [2] //! [3]
+
+//! [4]
+void FortuneThread::run()
+{
+    mutex.lock();
+//! [4] //! [5]
+    QString serverName = hostName;
+    quint16 serverPort = port;
+    mutex.unlock();
+//! [5]
+
+//! [6]
+    while (!quit) {
+//! [7]
+        const int Timeout = 5 * 1000;
+
+        QTcpSocket socket;
+        socket.connectToHost(serverName, serverPort);
+//! [6] //! [8]
+
+        if (!socket.waitForConnected(Timeout)) {
+            emit error(socket.error(), socket.errorString());
+            return;
+        }
+//! [8] //! [9]
+
+        while (socket.bytesAvailable() < (int)sizeof(quint16)) {
+            if (!socket.waitForReadyRead(Timeout)) {
+                emit error(socket.error(), socket.errorString());
+                return;
+            }
+//! [9] //! [10]
+        }
+//! [10] //! [11]
+
+        quint16 blockSize;
+        QDataStream in(&socket);
+        in.setVersion(QDataStream::Qt_4_0);
+        in >> blockSize;
+//! [11] //! [12]
+
+        while (socket.bytesAvailable() < blockSize) {
+            if (!socket.waitForReadyRead(Timeout)) {
+                emit error(socket.error(), socket.errorString());
+                return;
+            }
+//! [12] //! [13]
+        }
+//! [13] //! [14]
+
+        mutex.lock();
+        QString fortune;
+        in >> fortune;
+        emit newFortune(fortune);
+//! [7] //! [14] //! [15]
+
+        cond.wait(&mutex);
+        serverName = hostName;
+        serverPort = port;
+        mutex.unlock();
+    }
+//! [15]
+}
diff --git a/examples/network/blockingfortuneclient/fortunethread.h b/examples/network/blockingfortuneclient/fortunethread.h
new file mode 100644
index 0000000..c2fbe6f
--- /dev/null
+++ b/examples/network/blockingfortuneclient/fortunethread.h
@@ -0,0 +1,74 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef FORTUNETHREAD_H
+#define FORTUNETHREAD_H
+
+#include <QThread>
+#include <QMutex>
+#include <QWaitCondition>
+
+//! [0]
+class FortuneThread : public QThread
+{
+    Q_OBJECT
+
+public:
+    FortuneThread(QObject *parent = 0);
+    ~FortuneThread();
+
+    void requestNewFortune(const QString &hostName, quint16 port);
+    void run();
+
+signals:
+    void newFortune(const QString &fortune);
+    void error(int socketError, const QString &message);
+
+private:
+    QString hostName;
+    quint16 port;
+    QMutex mutex;
+    QWaitCondition cond;
+    bool quit;
+};
+//! [0]
+
+#endif
diff --git a/examples/network/blockingfortuneclient/main.cpp b/examples/network/blockingfortuneclient/main.cpp
new file mode 100644
index 0000000..98982c1
--- /dev/null
+++ b/examples/network/blockingfortuneclient/main.cpp
@@ -0,0 +1,52 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QApplication>
+
+#include "blockingclient.h"
+
+int main(int argc, char *argv[])
+{
+    QApplication app(argc, argv);
+    BlockingClient client;
+    client.show();
+    return client.exec();
+}