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# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
'''Connecting lambda to gui signals'''
import os
import sys
import unittest
from pathlib import Path
sys.path.append(os.fspath(Path(__file__).resolve().parents[1]))
from init_paths import init_test_paths
init_test_paths(False)
from PySide6.QtWidgets import QSpinBox, QPushButton
from helper.usesqapplication import UsesQApplication
class Control:
def __init__(self):
self.arg = False
class QtWidgetsSigLambda(UsesQApplication):
def testButton(self):
# Connecting a lambda to a QPushButton.clicked()
obj = QPushButton('label')
ctr = Control()
func = lambda: setattr(ctr, 'arg', True) # noqa: E731
obj.clicked.connect(func)
obj.click()
self.assertTrue(ctr.arg)
self.assertTrue(obj.clicked.disconnect(func))
def testSpinButton(self):
# Connecting a lambda to a QPushButton.clicked()
obj = QSpinBox()
ctr = Control()
arg = 444
func = lambda x: setattr(ctr, 'arg', 444) # noqa: E731
obj.valueChanged.connect(func)
obj.setValue(444)
self.assertEqual(ctr.arg, arg)
self.assertTrue(obj.valueChanged.disconnect(func))
if __name__ == '__main__':
unittest.main()
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