def test_second_argument_type(self): # any type with an __index__ method should be permitted as # a second argument self.assertAlmostEqual(round2(12.34, True), 12.3) class MyIndex(object): def __index__(self): return 4 self.assertAlmostEqual(round2(-0.123456, MyIndex()), -0.1235) # but floats should be illegal self.assertRaises(TypeError, round2, 3.14159, 2.0)
def test_second_argument_type(self):
# any type with an __index__ method should be permitted as
# a second argument
self.assertAlmostEqual(round2(12.34, True), 12.3)
class MyIndex(object):
def __index__(self):
return 4
self.assertAlmostEqual(round2(-0.123456, MyIndex()), -0.1235)
# but floats should be illegal
self.assertRaises(TypeError, round2, 3.14159, 2.0)
def postscriptWeightNameFallback(info):
"""
Fallback to the closest match of the *openTypeOS2WeightClass*
in this table:
=== ===========
100 Thin
200 Extra-light
300 Light
400 Normal
500 Medium
600 Semi-bold
700 Bold
800 Extra-bold
900 Black
=== ===========
"""
value = getAttrWithFallback(info, "openTypeOS2WeightClass")
value = int(round2(value, -2))
if value < 100:
value = 100
elif value > 900:
value = 900
name = _postscriptWeightNameOptions[value]
return name
def _processPostscriptWeightName(self, copiedInfo):
# handle postscriptWeightName by taking the value
# of openTypeOS2WeightClass and getting the closest
# value from the OS/2 specification.
name = None
if hasattr(copiedInfo, "openTypeOS2WeightClass") and copiedInfo.openTypeOS2WeightClass is not None:
v = copiedInfo.openTypeOS2WeightClass
# here we use Python 2 rounding (i.e. away from 0) instead of Python 3:
# e.g. 150 -> 200 and 250 -> 300, instead of 150 -> 200 and 250 -> 200
v = int(round2(v, -2))
if v < 100:
v = 100
elif v > 900:
v = 900
name = _postscriptWeightNameOptions[v]
copiedInfo.postscriptWeightName = name
def _processPostscriptWeightName(self, copiedInfo):
# handle postscriptWeightName by taking the value
# of openTypeOS2WeightClass and getting the closest
# value from the OS/2 specification.
name = None
if hasattr(copiedInfo, "openTypeOS2WeightClass") and copiedInfo.openTypeOS2WeightClass is not None:
v = copiedInfo.openTypeOS2WeightClass
# here we use Python 2 rounding (i.e. away from 0) instead of Python 3:
# e.g. 150 -> 200 and 250 -> 300, instead of 150 -> 200 and 250 -> 200
v = int(round2(v, -2))
if v < 100:
v = 100
elif v > 900:
v = 900
name = _postscriptWeightNameOptions[v]
copiedInfo.postscriptWeightName = name
def _openTypeOS2WidthClassFormatter(value):
"""
>>> _openTypeOS2WidthClassFormatter(-2)
1
>>> _openTypeOS2WidthClassFormatter(0)
1
>>> _openTypeOS2WidthClassFormatter(5.4)
5
>>> _openTypeOS2WidthClassFormatter(9.6)
9
>>> _openTypeOS2WidthClassFormatter(12)
9
"""
value = int(round2(value))
if value > 9:
value = 9
elif value < 1:
value = 1
return value
def _openTypeOS2WidthClassFormatter(value):
"""
>>> _openTypeOS2WidthClassFormatter(-2)
1
>>> _openTypeOS2WidthClassFormatter(0)
1
>>> _openTypeOS2WidthClassFormatter(5.4)
5
>>> _openTypeOS2WidthClassFormatter(9.6)
9
>>> _openTypeOS2WidthClassFormatter(12)
9
"""
value = int(round2(value))
if value > 9:
value = 9
elif value < 1:
value = 1
return value
def test_halfway_cases(self): # Halfway cases need special attention, since the current # implementation has to deal with them specially. Note that # 2.x rounds halfway values up (i.e., away from zero) while # 3.x does round-half-to-even. self.assertAlmostEqual(round2(0.125, 2), 0.13) self.assertAlmostEqual(round2(0.375, 2), 0.38) self.assertAlmostEqual(round2(0.625, 2), 0.63) self.assertAlmostEqual(round2(0.875, 2), 0.88) self.assertAlmostEqual(round2(-0.125, 2), -0.13) self.assertAlmostEqual(round2(-0.375, 2), -0.38) self.assertAlmostEqual(round2(-0.625, 2), -0.63) self.assertAlmostEqual(round2(-0.875, 2), -0.88) self.assertAlmostEqual(round2(0.25, 1), 0.3) self.assertAlmostEqual(round2(0.75, 1), 0.8) self.assertAlmostEqual(round2(-0.25, 1), -0.3) self.assertAlmostEqual(round2(-0.75, 1), -0.8) self.assertEqual(round2(-6.5, 0), -7.0) self.assertEqual(round2(-5.5, 0), -6.0) self.assertEqual(round2(-1.5, 0), -2.0) self.assertEqual(round2(-0.5, 0), -1.0) self.assertEqual(round2(0.5, 0), 1.0) self.assertEqual(round2(1.5, 0), 2.0) self.assertEqual(round2(2.5, 0), 3.0) self.assertEqual(round2(3.5, 0), 4.0) self.assertEqual(round2(4.5, 0), 5.0) self.assertEqual(round2(5.5, 0), 6.0) self.assertEqual(round2(6.5, 0), 7.0) # same but without an explicit second argument; in 3.x these # will give integers self.assertEqual(round2(-6.5), -7.0) self.assertEqual(round2(-5.5), -6.0) self.assertEqual(round2(-1.5), -2.0) self.assertEqual(round2(-0.5), -1.0) self.assertEqual(round2(0.5), 1.0) self.assertEqual(round2(1.5), 2.0) self.assertEqual(round2(2.5), 3.0) self.assertEqual(round2(3.5), 4.0) self.assertEqual(round2(4.5), 5.0) self.assertEqual(round2(5.5), 6.0) self.assertEqual(round2(6.5), 7.0) self.assertEqual(round2(-25.0, -1), -30.0) self.assertEqual(round2(-15.0, -1), -20.0) self.assertEqual(round2(-5.0, -1), -10.0) self.assertEqual(round2(5.0, -1), 10.0) self.assertEqual(round2(15.0, -1), 20.0) self.assertEqual(round2(25.0, -1), 30.0) self.assertEqual(round2(35.0, -1), 40.0) self.assertEqual(round2(45.0, -1), 50.0) self.assertEqual(round2(55.0, -1), 60.0) self.assertEqual(round2(65.0, -1), 70.0) self.assertEqual(round2(75.0, -1), 80.0) self.assertEqual(round2(85.0, -1), 90.0) self.assertEqual(round2(95.0, -1), 100.0) self.assertEqual(round2(12325.0, -1), 12330.0) self.assertEqual(round2(0, -1), 0.0) self.assertEqual(round2(350.0, -2), 400.0) self.assertEqual(round2(450.0, -2), 500.0) self.assertAlmostEqual(round2(0.5e21, -21), 1e21) self.assertAlmostEqual(round2(1.5e21, -21), 2e21) self.assertAlmostEqual(round2(2.5e21, -21), 3e21) self.assertAlmostEqual(round2(5.5e21, -21), 6e21) self.assertAlmostEqual(round2(8.5e21, -21), 9e21) self.assertAlmostEqual(round2(-1.5e22, -22), -2e22) self.assertAlmostEqual(round2(-0.5e22, -22), -1e22) self.assertAlmostEqual(round2(0.5e22, -22), 1e22) self.assertAlmostEqual(round2(1.5e22, -22), 2e22)
def round(self, multiple=1):
multiple = float(multiple)
for k, v in self._kerning.items():
self._kerning[k] = int(round2(int(round2(v / multiple)) * multiple))
def test_halfway_cases(self):
# Halfway cases need special attention, since the current
# implementation has to deal with them specially. Note that
# 2.x rounds halfway values up (i.e., away from zero) while
# 3.x does round-half-to-even.
self.assertAlmostEqual(round2(0.125, 2), 0.13)
self.assertAlmostEqual(round2(0.375, 2), 0.38)
self.assertAlmostEqual(round2(0.625, 2), 0.63)
self.assertAlmostEqual(round2(0.875, 2), 0.88)
self.assertAlmostEqual(round2(-0.125, 2), -0.13)
self.assertAlmostEqual(round2(-0.375, 2), -0.38)
self.assertAlmostEqual(round2(-0.625, 2), -0.63)
self.assertAlmostEqual(round2(-0.875, 2), -0.88)
self.assertAlmostEqual(round2(0.25, 1), 0.3)
self.assertAlmostEqual(round2(0.75, 1), 0.8)
self.assertAlmostEqual(round2(-0.25, 1), -0.3)
self.assertAlmostEqual(round2(-0.75, 1), -0.8)
self.assertEqual(round2(-6.5, 0), -7.0)
self.assertEqual(round2(-5.5, 0), -6.0)
self.assertEqual(round2(-1.5, 0), -2.0)
self.assertEqual(round2(-0.5, 0), -1.0)
self.assertEqual(round2(0.5, 0), 1.0)
self.assertEqual(round2(1.5, 0), 2.0)
self.assertEqual(round2(2.5, 0), 3.0)
self.assertEqual(round2(3.5, 0), 4.0)
self.assertEqual(round2(4.5, 0), 5.0)
self.assertEqual(round2(5.5, 0), 6.0)
self.assertEqual(round2(6.5, 0), 7.0)
# same but without an explicit second argument; in 3.x these
# will give integers
self.assertEqual(round2(-6.5), -7.0)
self.assertEqual(round2(-5.5), -6.0)
self.assertEqual(round2(-1.5), -2.0)
self.assertEqual(round2(-0.5), -1.0)
self.assertEqual(round2(0.5), 1.0)
self.assertEqual(round2(1.5), 2.0)
self.assertEqual(round2(2.5), 3.0)
self.assertEqual(round2(3.5), 4.0)
self.assertEqual(round2(4.5), 5.0)
self.assertEqual(round2(5.5), 6.0)
self.assertEqual(round2(6.5), 7.0)
self.assertEqual(round2(-25.0, -1), -30.0)
self.assertEqual(round2(-15.0, -1), -20.0)
self.assertEqual(round2(-5.0, -1), -10.0)
self.assertEqual(round2(5.0, -1), 10.0)
self.assertEqual(round2(15.0, -1), 20.0)
self.assertEqual(round2(25.0, -1), 30.0)
self.assertEqual(round2(35.0, -1), 40.0)
self.assertEqual(round2(45.0, -1), 50.0)
self.assertEqual(round2(55.0, -1), 60.0)
self.assertEqual(round2(65.0, -1), 70.0)
self.assertEqual(round2(75.0, -1), 80.0)
self.assertEqual(round2(85.0, -1), 90.0)
self.assertEqual(round2(95.0, -1), 100.0)
self.assertEqual(round2(12325.0, -1), 12330.0)
self.assertEqual(round2(0, -1), 0.0)
self.assertEqual(round2(350.0, -2), 400.0)
self.assertEqual(round2(450.0, -2), 500.0)
self.assertAlmostEqual(round2(0.5e21, -21), 1e21)
self.assertAlmostEqual(round2(1.5e21, -21), 2e21)
self.assertAlmostEqual(round2(2.5e21, -21), 3e21)
self.assertAlmostEqual(round2(5.5e21, -21), 6e21)
self.assertAlmostEqual(round2(8.5e21, -21), 9e21)
self.assertAlmostEqual(round2(-1.5e22, -22), -2e22)
self.assertAlmostEqual(round2(-0.5e22, -22), -1e22)
self.assertAlmostEqual(round2(0.5e22, -22), 1e22)
self.assertAlmostEqual(round2(1.5e22, -22), 2e22)
def round(self, multiple=1):
multiple = float(multiple)
for k, v in self._kerning.items():
self._kerning[k] = int(round2(
int(round2(v / multiple)) * multiple))
