i'm programming an application in python using twisted and PyQt . the problem that i'm facing is that when a function in my twisted code is executed i have to print a line in the GUI, i'm trying to achieve this by emiting a signal (Non PyQt class). This does not seem to work, i have a doubt that the twisted event loop is screwing things for PyQt. Because the closeEvent signal is not being trapped by the program.
Here's the code snippet:
from PyQt4 import QtGui, QtCore
import sys
from twisted.internet.protocol import Factory, Protocol
from twisted.protocols import amp
import qt4reactor
class register_procedure(amp.Command):
arguments = [('MAC',amp.String()),
('IP',amp.String()),
('Computer_Name',amp.String()),
('OS',amp.String())
]
response = [('req_status', amp.String()),
('ALIGN_FUNCTION', amp.String()),
('ALIGN_Confirmation', amp.Integer()),
('Callback_offset',amp.Integer())
]
class Ui_MainWindow(QtGui.QMainWindow):
def __init__(self,reactor, parent=None):
super(Ui_MainWindow,self).__init__(parent)
self.reactor=reactor
self.pf = Factory()
self.pf.protocol = Protocol
self.reactor.listenTCP(3610, self.pf) # listen on port 1234
def setupUi(self,MainWindow):
MainWindow.setObjectName(_fromUtf8("MainWindow"))
MainWindow.resize(903, 677)
self.centralwidget = QtGui.QWidget(MainWindow)
sizePolicy = QtGui.QSizePolicy(QtGui.QSizePolicy.Expanding, QtGui.QSizePolicy.Expanding)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(self.centralwidget.sizePolicy().hasHeightForWidth())
self.centralwidget.setSizePolicy(sizePolicy)
self.create_item()
self.retranslateUi(MainWindow)
self.connect(self, QtCore.SIGNAL('triggered()'), self.closeEvent)
QtCore.QObject.connect(self,QtCore.SIGNAL('registered()'),self.registered)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow", None))
self.pushButton_4.setText(_translate("MainWindow", "Delete System ", None))
self.pushButton.setText(_translate("MainWindow", "Add System", None))
self.label_2.setText(_translate("MainWindow", "SYSTEM STATUS", None))
self.label.setText(_translate("MainWindow", "Monitoring Output", None))
def registered(self):# this function is not being triggered
print "check"
self.textbrowser.append()
def closeEvent(self, event):#neither is this being triggered
print "asdf"
self.rector.stop()
MainWindow.close()
event.accept()
class Protocol(amp.AMP):
@register_procedure.responder
def register_procedure(self,MAC,IP,Computer_Name,OS):
self.bridge_conn=bridge()
cursor_device.execute("""select * FROM devices where MAC = ?;""",[(MAC)])
exists_val=cursor_device.fetchone()
cursor_device.fetchone()
print "register"
if not exists_val== "":
cursor_device.execute("""update devices set IP= ? , Computer_name= ? , OS = ? where MAC= ?;""",[IP,Computer_Name,OS,MAC])
QtCore.QObject.emit( QtCore.SIGNAL('registered')) # <--emits signal
return {'req_status': "done" ,'ALIGN_FUNCTION':'none','ALIGN_Confirmation':0,'Callback_offset':call_offset(1)}
else:
cursor_device.execute("""INSERT INTO devices(Mac,Ip,Computer_name,Os) values (?,?,?,?);""",[MAC,IP,Computer_Name,OS])
QtCore.QObject.emit( QtCore.SIGNAL('registered'))#<--emits signal
return {'req_status': "done" ,'ALIGN_FUNCTION':'main_loop()','ALIGN_Confirmation':0,'Callback_offset':0}
if __name__ == "__main__":
app = QtGui.QApplication(sys.argv)
try:
import qt4reactor
except ImportError:
from twisted.internet import qt4reactor
qt4reactor.install()
from twisted.internet import reactor
MainWindow = QtGui.QMainWindow() # <-- Instantiate QMainWindow object.
ui = Ui_MainWindow(reactor)
ui.setupUi(MainWindow)
MainWindow.show()
reactor.run()
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