PyQt signal between QObjects
- by geho
I'm trying to make a view and controller in PyQt where the view is emitting a custom signal when a button is clicked, and the controller has one of its methods connected to the emitted signal. It does not work, however. The respond method is not called when I click the button. Any idea what I did wrong ?
import sys
from PyQt4.QtCore import *
from PyQt4.QtGui import QPushButton, QVBoxLayout, QDialog, QApplication
class TestView(QDialog):
def __init__(self, parent=None):
super(TestView, self).__init__(parent)
self.button = QPushButton('Click')
layout = QVBoxLayout()
layout.addWidget(self.button)
self.setLayout(layout)
self.connect(self.button, SIGNAL('clicked()'), self.buttonClicked)
def buttonClicked(self):
self.emit(SIGNAL('request'))
class TestController(QObject):
def __init__(self, view):
self.view = view
self.connect(self.view, SIGNAL('request'), self.respond)
def respond(self):
print 'respond'
app = QApplication(sys.argv)
dialog = TestView()
controller = TestController(dialog)
dialog.show()
app.exec_()
