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#!/usr/bin/env python
############################################################################
#
# Copyright (C) 2004-2005 Trolltech AS. All rights reserved.
#
# This file is part of the example classes of the Qt Toolkit.
#
# This file may be used under the terms of the GNU General Public
# License version 2.0 as published by the Free Software Foundation
# and appearing in the file LICENSE.GPL included in the packaging of
# self file. Please review the following information to ensure GNU
# General Public Licensing requirements will be met:
# http://www.trolltech.com/products/qt/opensource.html
#
# If you are unsure which license is appropriate for your use, please
# review the following information:
# http://www.trolltech.com/products/qt/licensing.html or contact the
# sales department at sales@trolltech.com.
#
# This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
# WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
#
############################################################################
import sys
import random
from PyQt4 import QtCore, QtGui, QtNetwork
class FortuneThread(QtCore.QThread):
def __init__(self, socketDescriptor, fortune, parent):
QtCore.QThread.__init__(self, parent)
self.socketDescriptor = socketDescriptor
self.text = fortune
def run(self):
tcpSocket = QtNetwork.QTcpSocket()
if not tcpSocket.setSocketDescriptor(self.socketDescriptor):
self.emit(QtCore.SIGNAL("error(int)"), tcpSocket.error())
return
block = QtCore.QByteArray()
outstr = QtCore.QDataStream(block, QtCore.QIODevice.WriteOnly)
outstr.setVersion(QtCore.QDataStream.Qt_4_0)
outstr.writeUInt16(0)
outstr << self.text
outstr.device().seek(0)
outstr.writeUInt16(block.count() - 2)
tcpSocket.write(block)
tcpSocket.disconnectFromHost()
tcpSocket.waitForDisconnected()
class FortuneServer(QtNetwork.QTcpServer):
def __init__(self, parent=None):
QtNetwork.QTcpServer.__init__(self, parent)
self.fortunes = QtCore.QStringList()
(self.fortunes << self.tr("You've been leading a dog's life. Stay off the furniture.")
<< self.tr("You've got to think about tomorrow.")
<< self.tr("You will be surprised by a loud noise.")
<< self.tr("You will feel hungry again in another hour.")
<< self.tr("You might have mail.")
<< self.tr("You cannot kill time without injuring eternity.")
<< self.tr("Computers are not intelligent. They only think they are."))
def incomingConnection(self, socketDescriptor):
fortune = self.fortunes[random.randint(0, self.fortunes.count()-1)]
thread = FortuneThread(socketDescriptor, fortune, self)
self.connect(thread, QtCore.SIGNAL("finished()"), thread, QtCore.SLOT("deleteLater()"))
thread.start()
class Dialog(QtGui.QDialog):
def __init__(self, parent=None):
QtGui.QDialog.__init__(self, parent)
self.server = FortuneServer()
self.statusLabel = QtGui.QLabel()
self.quitButton = QtGui.QPushButton(self.tr("Quit"))
self.quitButton.setAutoDefault(False)
if not self.server.listen():
QtGui.QMessageBox.critical(self, self.tr("Threaded Fortune Server"),
self.tr("Unable to start the server: %1."
.arg(self.server.errorString())))
self.close()
return
self.statusLabel.setText(self.tr("The server is running on port %1.\n"\
"Run the Fortune Client example now.")
.arg(self.server.serverPort()))
self.connect(self.quitButton, QtCore.SIGNAL("clicked()"), self, QtCore.SLOT("close()"))
buttonLayout = QtGui.QHBoxLayout()
buttonLayout.addStretch(1)
buttonLayout.addWidget(self.quitButton)
mainLayout = QtGui.QVBoxLayout()
mainLayout.addWidget(self.statusLabel)
mainLayout.addLayout(buttonLayout)
self.setLayout(mainLayout)
self.setWindowTitle(self.tr("Threaded Fortune Server"))
if __name__ == "__main__":
app = QtGui.QApplication(sys.argv)
dialog = Dialog()
dialog.show()
sys.exit(dialog.exec_())
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