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from datetime import datetime
import pytest
from numpy import datetime64
from echo import CallbackProperty
from echo.qt.tests.helpers import SKIP_QT_TEST
if SKIP_QT_TEST:
pytest.skip(allow_module_level=True)
from qtpy import QtWidgets, QtGui
from qtpy.QtCore import QDateTime, Qt
from echo.qt.autoconnect import autoconnect_callbacks_to_qt
from echo.qt.connect import UserDataWrapper
def test_autoconnect_callbacks_to_qt():
class Data(object):
pass
data1 = Data()
data2 = Data()
class CustomWidget(QtWidgets.QWidget):
def __init__(self, parent=None):
super(CustomWidget, self).__init__(parent=parent)
self.layout = QtWidgets.QVBoxLayout()
self.setLayout(self.layout)
self.combotext_planet = QtWidgets.QComboBox(objectName='combotext_planet')
self.layout.addWidget(self.combotext_planet)
self.combotext_planet.addItem('earth')
self.combotext_planet.addItem('mars')
self.combotext_planet.addItem('jupiter')
self.combodata_dataset = QtWidgets.QComboBox(objectName='combodata_dataset')
self.layout.addWidget(self.combodata_dataset)
self.combodata_dataset.addItem('data1', UserDataWrapper(data1))
self.combodata_dataset.addItem('data2', UserDataWrapper(data2))
self.text_name = QtWidgets.QLineEdit(objectName='text_name')
self.layout.addWidget(self.text_name)
self.valuetext_age = QtWidgets.QLineEdit(objectName='valuetext_age')
self.layout.addWidget(self.valuetext_age)
self.value_height = QtWidgets.QSlider(objectName='value_height')
self.value_height.setMinimum(0)
self.value_height.setMaximum(10)
self.layout.addWidget(self.value_height)
self.bool_log = QtWidgets.QToolButton(objectName='bool_log')
self.bool_log.setCheckable(True)
self.layout.addWidget(self.bool_log)
self.datetime_dob = QtWidgets.QDateTimeEdit(objectName="datetime_dob")
self.datetime_dob.setTimeSpec(Qt.TimeSpec.UTC)
self.layout.addWidget(self.datetime_dob)
class Person(object):
planet = CallbackProperty()
dataset = CallbackProperty()
name = CallbackProperty()
age = CallbackProperty()
height = CallbackProperty()
log = CallbackProperty()
dob = CallbackProperty()
widget = CustomWidget()
person = Person()
connect_kwargs = {'height': {'value_range': (0, 100)},
'age': {'fmt': '{:.2f}'}}
c1 = autoconnect_callbacks_to_qt(person, widget, connect_kwargs=connect_kwargs) # noqa
# Check that modifying things in the Qt widget updates the callback properties
widget.combotext_planet.setCurrentIndex(2)
assert person.planet == 'jupiter'
widget.combodata_dataset.setCurrentIndex(1)
assert person.dataset is data2
widget.text_name.setText('Lovelace')
widget.text_name.editingFinished.emit()
assert person.name == 'Lovelace'
widget.valuetext_age.setText('76')
widget.valuetext_age.editingFinished.emit()
assert person.age == 76
widget.value_height.setValue(7)
assert person.height == 70
widget.bool_log.setChecked(True)
assert person.log
dob = datetime(2000, 1, 1, 11, 52, 6)
qdob = QDateTime(dob.date(), dob.time(), Qt.TimeSpec.UTC)
widget.datetime_dob.setDateTime(qdob)
assert person.dob.item() == dob
# Check that modifying the callback properties updates the Qt widget
person.planet = 'mars'
assert widget.combotext_planet.currentIndex() == 1
person.dataset = data1
assert widget.combodata_dataset.currentIndex() == 0
person.name = 'Curie'
assert widget.text_name.text() == 'Curie'
person.age = 66.3
assert widget.valuetext_age.text() == '66.30'
person.height = 54
assert widget.value_height.value() == 5
person.log = False
assert not widget.bool_log.isChecked()
dob = datetime(2010, 2, 3, 16, 22, 11)
person.dob = datetime64(dob)
qdatetime = widget.datetime_dob.dateTime().toUTC()
assert qdatetime.toPython() == person.dob.item()
def test_autoconnect_with_empty_qt_item():
# The following test just makes sure that if a widget without children
# is ever passed to autoconnect_callbacks_to_qt, things don't crash
widget = QtGui.QPalette()
class Person(object):
name = CallbackProperty()
person = Person()
autoconnect_callbacks_to_qt(person, widget)
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