def test_curved(self):
# Arrange
middle = 0.5
pos = 0.75
# Act
ret = GimpGradientFile.curved(middle, pos)
# Assert
self.assertEqual(ret, 0.75)
def test_sphere_increasing():
# Arrange
middle = 0.5
pos = 0.75
# Act
ret = GimpGradientFile.sphere_increasing(middle, pos)
# Assert
assert round(abs(ret - 0.9682458365518543), 7) == 0
def test_linear_pos_gt_small_middle():
# Arrange
middle = 1 - 1e-11
pos = 1 - 1e-12
# Act
ret = GimpGradientFile.linear(middle, pos)
# Assert
assert ret == 1.0
def test_curved():
# Arrange
middle = 0.5
pos = 0.75
# Act
ret = GimpGradientFile.curved(middle, pos)
# Assert
assert ret == 0.75
def test_sphere_decreasing(self):
# Arrange
middle = 0.5
pos = 0.75
# Act
ret = GimpGradientFile.sphere_decreasing(middle, pos)
# Assert
self.assertEqual(ret, 0.3385621722338523)
def test_linear_pos_le_middle():
# Arrange
middle = 0.5
pos = 0.25
# Act
ret = GimpGradientFile.linear(middle, pos)
# Assert
assert ret == 0.25
def test_sphere_increasing(self):
# Arrange
middle = 0.5
pos = 0.75
# Act
ret = GimpGradientFile.sphere_increasing(middle, pos)
# Assert
self.assertAlmostEqual(ret, 0.9682458365518543)
def test_linear_pos_le_middle(self):
# Arrange
middle = 0.5
pos = 0.25
# Act
ret = GimpGradientFile.linear(middle, pos)
# Assert
self.assertEqual(ret, 0.25)
def test_sine(self):
# Arrange
middle = 0.5
pos = 0.75
# Act
ret = GimpGradientFile.sine(middle, pos)
# Assert
self.assertEqual(ret, 0.8535533905932737)
def test_sphere_decreasing():
# Arrange
middle = 0.5
pos = 0.75
# Act
ret = GimpGradientFile.sphere_decreasing(middle, pos)
# Assert
assert ret == 0.3385621722338523
def test_sine():
# Arrange
middle = 0.5
pos = 0.75
# Act
ret = GimpGradientFile.sine(middle, pos)
# Assert
assert ret == 0.8535533905932737
def test_sphere_decreasing(self):
# Arrange
middle = 0.5
pos = 0.75
# Act
ret = GimpGradientFile.sphere_decreasing(middle, pos)
# Assert
self.assertEqual(ret, 0.3385621722338523)
def test_sphere_increasing(self):
# Arrange
middle = 0.5
pos = 0.75
# Act
ret = GimpGradientFile.sphere_increasing(middle, pos)
# Assert
self.assert_almost_equal(ret, 0.9682458365518543)
def test_linear_pos_gt_small_middle(self):
# Arrange
middle = 1 - 1e-11
pos = 1 - 1e-12
# Act
ret = GimpGradientFile.linear(middle, pos)
# Assert
self.assertEqual(ret, 1.0)
def test_sine(self):
# Arrange
middle = 0.5
pos = 0.75
# Act
ret = GimpGradientFile.sine(middle, pos)
# Assert
self.assertEqual(ret, 0.8535533905932737)
def test_linear_pos_le_middle(self):
# Arrange
middle = 0.5
pos = 0.25
# Act
ret = GimpGradientFile.linear(middle, pos)
# Assert
self.assertEqual(ret, 0.25)
def test_curved(self):
# Arrange
middle = 0.5
pos = 0.75
# Act
ret = GimpGradientFile.curved(middle, pos)
# Assert
self.assertEqual(ret, 0.75)
def test_linear_pos_gt_small_middle(self):
# Arrange
middle = 1 - 1e-11
pos = 1 - 1e-12
# Act
ret = GimpGradientFile.linear(middle, pos)
# Assert
self.assertEqual(ret, 1.0)
def load(filename):
# FIXME: supports GIMP gradients only
fp = open(filename, "rb")
lut = None
if not lut:
try:
from PIL import GimpPaletteFile
fp.seek(0)
p = GimpPaletteFile.GimpPaletteFile(fp)
lut = p.getpalette()
except (SyntaxError, ValueError):
# import traceback
# traceback.print_exc()
pass
if not lut:
try:
from PIL import GimpGradientFile
fp.seek(0)
p = GimpGradientFile.GimpGradientFile(fp)
lut = p.getpalette()
except (SyntaxError, ValueError):
# import traceback
# traceback.print_exc()
pass
if not lut:
try:
from PIL import PaletteFile
fp.seek(0)
p = PaletteFile.PaletteFile(fp)
lut = p.getpalette()
except (SyntaxError, ValueError):
#import traceback
#traceback.print_exc()
pass
if not lut:
raise IOError("cannot load palette")
return lut # data, rawmode
