def as_string(self, value, format='png'):
if value is ValueUnset:
return ''
success, buffer_ = value.save_to_bufferv(format, [], [])
assert success
return buffer_
def from_string(self, value, format='png'):
try:
return pixbuf_from_string(value, format)
except GObject.GError as e:
raise ValidationError(_("Could not load image: %s") % e)
converter.add(_PixbufConverter)
@implementer(IProxyWidget)
class ProxyWidgetMixin(object):
"""This class is a mixin that provide a common interface for KiwiWidgets.
Usually the Proxy class need to set and get data from the widgets. It also
need a validation framework.
:cvar allowed_data_types: A list of types which we are allowed to use
in this class.
"""
allowed_data_types = ()
symbol = self.symbol
if precision is None:
precision = self.precision
return value.format(symbol, precision)
def from_string(self, value):
if value == '':
return ValueUnset
try:
return currency(value)
except (ValueError, decimal.InvalidOperation):
raise ValidationError(
_("%s can not be converted to a currency") % value)
converter.add(_CurrencyConverter)
def format_price(value, symbol=True, precision=None):
"""
Formats a price according to the current locales monetary
settings
:param value: number
:param symbol: whether to include the currency symbol
"""
return currency(value).format(symbol, precision)
def testFake(self):
self.assertRaises(KeyError, converter.remove, FakeConverter)
converter.add(FakeConverter)
self.assertRaises(ValueError, converter.add, FakeConverter)
converter.remove(FakeConverter)
self.assertRaises(KeyError, converter.remove, FakeConverter)
def testFake(self):
self.assertRaises(KeyError, converter.remove, FakeConverter)
converter.add(FakeConverter)
self.assertRaises(ValueError, converter.add, FakeConverter)
converter.remove(FakeConverter)
self.assertRaises(KeyError, converter.remove, FakeConverter)
if symbol is None:
symbol = self.symbol
if precision is None:
precision = self.precision
return value.format(symbol, precision)
def from_string(self, value):
if value == '':
return ValueUnset
try:
return currency(value)
except (ValueError, decimal.InvalidOperation):
raise ValidationError(
_("%s can not be converted to a currency") % value)
converter.add(_CurrencyConverter)
def format_price(value, symbol=True, precision=None):
"""
Formats a price according to the current locales monetary
settings
:param value: number
:param symbol: whether to include the currency symbol
"""
return currency(value).format(symbol, precision)