def __init__(self,
parent,
typ,
curvalue,
fmtstr='%.4g',
minmax=None,
allow_enter=False):
QLineEdit.__init__(self, parent)
self._typ = typ
if typ is float:
val = DoubleValidator(self)
if minmax:
# setRange doesn't work correctly in some Qt versions...
val.setBottom(minmax[0])
if minmax[1] is not None:
val.setTop(minmax[1])
self.setValidator(val)
self.setText(fmtstr % curvalue)
elif typ is int:
val = QIntValidator(self)
if minmax:
val.setRange(minmax[0], minmax[1])
self.setValidator(val)
self.setText(str(curvalue))
else:
self.setText(str(curvalue))
self.textChanged.connect(lambda txt: self.valueModified.emit())
if allow_enter:
self.returnPressed.connect(
lambda: self.valueChosen.emit(self._typ(self.text())))
def test_double_validator():
inf = float('inf')
# valid cases
validator = DoubleValidator()
for args in [
('0', -inf, inf),
('0.0', -inf, inf),
('0.0e0', -inf, inf),
('-0.0', -inf, inf),
('1.23456789123456789e130', -inf, inf),
('0', -1, 1),
('0', 0, inf),
('0', -inf, 0),
]:
validator.setBottom(args[1])
validator.setTop(args[2])
assert validator.validate(args[0], 0)[0] == QValidator.Acceptable
# intermediate cases
for args in [
('4', 10, 50),
('-4', -50, -10),
('1.0e', -inf, inf),
('0', 10, 20),
]:
validator.setBottom(args[1])
validator.setTop(args[2])
assert validator.validate(args[0], 0)[0] == QValidator.Intermediate
# invalid cases
for args in [
('-15', 10, 20),
('-1', 10, 20),
('+15', -20, -10),
('+1', -20, -10),
('1,5', 0, 10),
]:
validator.setBottom(args[1])
validator.setTop(args[2])
assert validator.validate(args[0], 0)[0] == QValidator.Invalid