def setTextColor(self, color):
"""set the text paint color"""
if type(color) == tuple and len(color) == 3:
color = QtGui.QColor(color[0], color[1], color[2])
elif type(color) == int:
color = QtGui.QColor(color, color, color)
setattr(self, '__textColor', color)
def is_valid(control_instance, *args, **kwargs):
""" Method to check if the new control value is correct.
If the new entered value is not correct, the backroung control color
will be red.
Parameters
----------
control_instance: QWidget (mandatory)
the control widget we want to validate
Returns
-------
out: bool
True if the control value is a file,
False otherwise
"""
# Get the current control palette
control_palette = control_instance.path.palette()
# Get the control current value
control_value = control_instance.path.value()
color = QtCore.Qt.white
red = QtGui.QColor(255, 220, 220)
yellow = QtGui.QColor(255, 255, 200)
# If the control value contains a file, the control is valid and the
# backgound color of the control is white
is_valid = False
if control_value is traits.Undefined:
# Undefined is an exception: allow to reset it (File instances,
# even mandatory, are initialized with Undefined value)
is_valid = True
if not control_instance.optional:
color = red
else:
if os.path.isdir(control_value) \
or (control_instance.output and control_value != "") \
or (control_instance.trait.handler.exists is False
and control_value != ""):
is_valid = True
# If the control value is optional, the control is valid and the
# backgound color of the control is yellow
elif control_instance.optional is True and control_value == "":
color = yellow
is_valid = True
# If the control value is empty, the control is not valid and the
# backgound color of the control is red
else:
color = red
# Set the new palette to the control instance
control_palette.setColor(control_instance.path.backgroundRole(), color)
control_instance.path.setPalette(control_palette)
return is_valid
def is_valid(control_instance, *args, **kwargs):
""" Method to check if the new control value is correct.
If the new entered value is not correct, the backroung control color
will be red.
Parameters
----------
control_instance: QLineEdit (mandatory)
the control widget we want to validate
Returns
-------
out: bool
True if the control value is valid,
False otherwise
"""
# Get the current control palette
control_palette = control_instance.palette()
# Get the control current value: format the float string
# Valid float strings are: +1, -1, 1, 1.1
control_text = control_instance.text()
if type(control_text) not in (str, six.text_type):
# old QString with PyQt API v1
control_text = six.text_type(control_text)
control_value = control_text.replace(".", "", 1)
control_value = re.sub("^([-+])", "", control_value, count=1)
red = QtGui.QColor(255, 220, 220)
yellow = QtGui.QColor(255, 255, 200)
# If the control value contains only digits, the control is valid and
# the backgound color of the control is white
is_valid = False
if control_value.isdigit():
control_palette.setColor(control_instance.backgroundRole(),
QtCore.Qt.white)
is_valid = True
# If the control value is optional, the control is valid and the
# backgound color of the control is yellow
elif control_instance.optional is True and control_value == "":
control_palette.setColor(control_instance.backgroundRole(), yellow)
is_valid = True
# If the control value is empty, the control is not valid and the
# backgound color of the control is red
else:
control_palette.setColor(control_instance.backgroundRole(), red)
# Set the new palette to the control instance
control_instance.setPalette(control_palette)
return is_valid
def is_valid(control_instance, *args, **kwargs):
""" Method to check if the new control value is correct.
If the new entered value is not correct, the backroung control color
will be red.
Parameters
----------
control_instance: QLineEdit (mandatory)
the control widget we want to validate
Returns
-------
out: bool
True if the control value is valid,
False otherwise
"""
# Get the current control palette
control_palette = control_instance.palette()
# Get the control current value
control_value = control_instance.value()
color = QtCore.Qt.white
red = QtGui.QColor(255, 220, 220)
yellow = QtGui.QColor(255, 255, 200)
# If the control value is not empty, the control is valid and the
# backgound color of the control is white
is_valid = False
if control_value in ('', None, traits.Undefined):
if control_instance.optional:
# If the control value is optional, the control is valid and
# the backgound color of the control is yellow
color = yellow
is_valid = True
else:
color = red
if control_value != '':
# allow to reset value
is_valid = True
else:
is_valid = True
# Set the new palette to the control instance
control_palette.setColor(control_instance.backgroundRole(), color)
control_instance.setPalette(control_palette)
return is_valid
def textColor(self):
"""text paint color"""
return getattr(self, '__textColor', QtGui.QColor(125, 125, 125))
