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'''Connecting lambda to gui signals'''
import unittest
from PySide.QtCore import QObject, SIGNAL
try:
from PySide.QtGui import QSpinBox, QPushButton
hasQtGui = True
except ImportError:
hasQtGui = False
from helper import UsesQApplication
if hasQtGui:
class QtGuiSigLambda(UsesQApplication):
def testButton(self):
#Connecting a lambda to a QPushButton.clicked()
obj = QPushButton('label')
QObject.connect(obj, SIGNAL('clicked()'),
lambda: setattr(obj, 'called', True))
obj.click()
self.assert_(obj.called)
def testSpinButton(self):
#Connecting a lambda to a QPushButton.clicked()
obj = QSpinBox()
arg = 444
QObject.connect(obj, SIGNAL('valueChanged(int)'),
lambda x: setattr(obj, 'arg', 444))
obj.setValue(444)
self.assertEqual(obj.arg, arg)
if __name__ == '__main__':
unittest.main()
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