qt5base-lts/examples/dbus/chat/chat.cpp
Sergio Ahumada 48e0c4df23 Update copyright year in Digia's license headers
Change-Id: Ic804938fc352291d011800d21e549c10acac66fb
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
2013-01-18 09:07:35 +01:00

164 lines
5.4 KiB
C++

/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** 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 Digia Plc 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 <QApplication>
#include <QMessageBox>
#include "chat.h"
#include "chat_adaptor.h"
#include "chat_interface.h"
ChatMainWindow::ChatMainWindow()
: m_nickname(QLatin1String("nickname"))
{
setupUi(this);
sendButton->setEnabled(false);
connect(messageLineEdit, SIGNAL(textChanged(QString)),
this, SLOT(textChangedSlot(QString)));
connect(sendButton, SIGNAL(clicked(bool)), this, SLOT(sendClickedSlot()));
connect(actionChangeNickname, SIGNAL(triggered(bool)), this, SLOT(changeNickname()));
connect(actionAboutQt, SIGNAL(triggered(bool)), this, SLOT(aboutQt()));
connect(qApp, SIGNAL(lastWindowClosed()), this, SLOT(exiting()));
// add our D-Bus interface and connect to D-Bus
new ChatAdaptor(this);
QDBusConnection::sessionBus().registerObject("/", this);
org::example::chat *iface;
iface = new org::example::chat(QString(), QString(), QDBusConnection::sessionBus(), this);
//connect(iface, SIGNAL(message(QString,QString)), this, SLOT(messageSlot(QString,QString)));
QDBusConnection::sessionBus().connect(QString(), QString(), "org.example.chat", "message", this, SLOT(messageSlot(QString,QString)));
connect(iface, SIGNAL(action(QString,QString)), this, SLOT(actionSlot(QString,QString)));
NicknameDialog dialog;
dialog.cancelButton->setVisible(false);
dialog.exec();
m_nickname = dialog.nickname->text().trimmed();
emit action(m_nickname, QLatin1String("joins the chat"));
}
ChatMainWindow::~ChatMainWindow()
{
}
void ChatMainWindow::rebuildHistory()
{
QString history = m_messages.join( QLatin1String("\n" ) );
chatHistory->setPlainText(history);
}
void ChatMainWindow::messageSlot(const QString &nickname, const QString &text)
{
QString msg( QLatin1String("<%1> %2") );
msg = msg.arg(nickname, text);
m_messages.append(msg);
if (m_messages.count() > 100)
m_messages.removeFirst();
rebuildHistory();
}
void ChatMainWindow::actionSlot(const QString &nickname, const QString &text)
{
QString msg( QLatin1String("* %1 %2") );
msg = msg.arg(nickname, text);
m_messages.append(msg);
if (m_messages.count() > 100)
m_messages.removeFirst();
rebuildHistory();
}
void ChatMainWindow::textChangedSlot(const QString &newText)
{
sendButton->setEnabled(!newText.isEmpty());
}
void ChatMainWindow::sendClickedSlot()
{
//emit message(m_nickname, messageLineEdit->text());
QDBusMessage msg = QDBusMessage::createSignal("/", "org.example.chat", "message");
msg << m_nickname << messageLineEdit->text();
QDBusConnection::sessionBus().send(msg);
messageLineEdit->setText(QString());
}
void ChatMainWindow::changeNickname()
{
NicknameDialog dialog(this);
if (dialog.exec() == QDialog::Accepted) {
QString old = m_nickname;
m_nickname = dialog.nickname->text().trimmed();
emit action(old, QString("is now known as %1").arg(m_nickname));
}
}
void ChatMainWindow::aboutQt()
{
QMessageBox::aboutQt(this);
}
void ChatMainWindow::exiting()
{
emit action(m_nickname, QLatin1String("leaves the chat"));
}
NicknameDialog::NicknameDialog(QWidget *parent)
: QDialog(parent)
{
setupUi(this);
}
int main(int argc, char **argv)
{
QApplication app(argc, argv);
if (!QDBusConnection::sessionBus().isConnected()) {
qWarning("Cannot connect to the D-Bus session bus.\n"
"Please check your system settings and try again.\n");
return 1;
}
ChatMainWindow chat;
chat.show();
return app.exec();
}