1 files changed, 141 insertions, 0 deletions
diff --git a/examples/network/network-chat/chatdialog.cpp b/examples/network/network-chat/chatdialog.cpp
new file mode 100644
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+++ b/examples/network/network-chat/chatdialog.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+#include "chatdialog.h"
+
+ChatDialog::ChatDialog(QWidget *parent)
+    : QDialog(parent)
+{
+    setupUi(this);
+
+    lineEdit->setFocusPolicy(Qt::StrongFocus);
+    textEdit->setFocusPolicy(Qt::NoFocus);
+    textEdit->setReadOnly(true);
+    listWidget->setFocusPolicy(Qt::NoFocus);
+
+    connect(lineEdit, SIGNAL(returnPressed()), this, SLOT(returnPressed()));
+    connect(lineEdit, SIGNAL(returnPressed()), this, SLOT(returnPressed()));
+    connect(&client, SIGNAL(newMessage(QString,QString)),
+            this, SLOT(appendMessage(QString,QString)));
+    connect(&client, SIGNAL(newParticipant(QString)),
+            this, SLOT(newParticipant(QString)));
+    connect(&client, SIGNAL(participantLeft(QString)),
+            this, SLOT(participantLeft(QString)));
+
+    myNickName = client.nickName();
+    newParticipant(myNickName);
+    tableFormat.setBorder(0);
+    QTimer::singleShot(10 * 1000, this, SLOT(showInformation()));
+}
+
+void ChatDialog::appendMessage(const QString &from, const QString &message)
+{
+    if (from.isEmpty() || message.isEmpty())
+        return;
+
+    QTextCursor cursor(textEdit->textCursor());
+    cursor.movePosition(QTextCursor::End);
+    QTextTable *table = cursor.insertTable(1, 2, tableFormat);
+    table->cellAt(0, 0).firstCursorPosition().insertText('<' + from + "> ");
+    table->cellAt(0, 1).firstCursorPosition().insertText(message);
+    QScrollBar *bar = textEdit->verticalScrollBar();
+    bar->setValue(bar->maximum());
+}
+
+void ChatDialog::returnPressed()
+{
+    QString text = lineEdit->text();
+    if (text.isEmpty())
+        return;
+
+    if (text.startsWith(QChar('/'))) {
+        QColor color = textEdit->textColor();
+        textEdit->setTextColor(Qt::red);
+        textEdit->append(tr("! Unknown command: %1")
+                         .arg(text.left(text.indexOf(' '))));
+        textEdit->setTextColor(color);
+    } else {
+        client.sendMessage(text);
+        appendMessage(myNickName, text);
+    }
+
+    lineEdit->clear();
+}
+
+void ChatDialog::newParticipant(const QString &nick)
+{
+    if (nick.isEmpty())
+        return;
+
+    QColor color = textEdit->textColor();
+    textEdit->setTextColor(Qt::gray);
+    textEdit->append(tr("* %1 has joined").arg(nick));
+    textEdit->setTextColor(color);
+    listWidget->addItem(nick);
+}
+
+void ChatDialog::participantLeft(const QString &nick)
+{
+    if (nick.isEmpty())
+        return;
+
+    QList<QListWidgetItem *> items = listWidget->findItems(nick,
+                                                           Qt::MatchExactly);
+    if (items.isEmpty())
+        return;
+
+    delete items.at(0);
+    QColor color = textEdit->textColor();
+    textEdit->setTextColor(Qt::gray);
+    textEdit->append(tr("* %1 has left").arg(nick));
+    textEdit->setTextColor(color);
+}
+
+void ChatDialog::showInformation()
+{
+    if (listWidget->count() == 1) {
+        QMessageBox::information(this, tr("Chat"),
+                                 tr("Launch several instances of this "
+                                    "program on your local network and "
+                                    "start chatting!"));
+    }
+}