def test_rgb_to_cmyk():
"""Test rgb_to_cmyk"""
rgb = colormodel.RGB(255, 255, 255)
cmyk = a3.rgb_to_cmyk(rgb)
cornelltest.assert_equals('0.000', a3.str5(cmyk.cyan))
cornelltest.assert_equals('0.000', a3.str5(cmyk.magenta))
cornelltest.assert_equals('0.000', a3.str5(cmyk.yellow))
cornelltest.assert_equals('0.000', a3.str5(cmyk.black))
rgb = colormodel.RGB(0, 0, 0)
cmyk = a3.rgb_to_cmyk(rgb)
cornelltest.assert_equals('0.000', a3.str5(cmyk.cyan))
cornelltest.assert_equals('0.000', a3.str5(cmyk.magenta))
cornelltest.assert_equals('0.000', a3.str5(cmyk.yellow))
cornelltest.assert_equals('100.0', a3.str5(cmyk.black))
rgb = colormodel.RGB(217, 43, 164)
cmyk = a3.rgb_to_cmyk(rgb)
cornelltest.assert_equals('0.000', a3.str5(cmyk.cyan))
cornelltest.assert_equals('80.18', a3.str5(cmyk.magenta))
cornelltest.assert_equals('24.42', a3.str5(cmyk.yellow))
cornelltest.assert_equals('14.90', a3.str5(cmyk.black))
rgb = colormodel.RGB(50, 123, 43)
cmyk = a3.rgb_to_cmyk(rgb)
cornelltest.assert_equals('59.35', a3.str5(cmyk.cyan))
cornelltest.assert_equals('0.000', a3.str5(cmyk.magenta))
cornelltest.assert_equals('65.04', a3.str5(cmyk.yellow))
cornelltest.assert_equals('51.76', a3.str5(cmyk.black))
def test_rgb_to_hsv():
"""Test translation function rgb_to_hsv"""
#MAX = MIN
rgb = colormodel.RGB(255, 255, 255)
hsv = a3.rgb_to_hsv(rgb)
cornelltest.assert_equals('0.000', a3.str5(hsv.hue))
cornelltest.assert_equals('0.000', a3.str5(hsv.saturation))
cornelltest.assert_equals('1.000', a3.str5(hsv.value))
rgb = colormodel.RGB(0, 0, 0)
hsv = a3.rgb_to_hsv(rgb)
cornelltest.assert_equals('0.000', a3.str5(hsv.hue))
cornelltest.assert_equals('0.000', a3.str5(hsv.saturation))
cornelltest.assert_equals('0.000', a3.str5(hsv.value))
rgb = colormodel.RGB(100, 100, 100)
hsv = a3.rgb_to_hsv(rgb)
cornelltest.assert_equals('0.000', a3.str5(hsv.hue))
cornelltest.assert_equals('0.000', a3.str5(hsv.saturation))
cornelltest.assert_equals('0.392', a3.str5(hsv.value))
#MAX = R and G >= B
rgb = colormodel.RGB(200, 150, 100)
hsv = a3.rgb_to_hsv(rgb)
cornelltest.assert_equals('30.00', a3.str5(hsv.hue))
cornelltest.assert_equals('0.500', a3.str5(hsv.saturation))
cornelltest.assert_equals('0.784', a3.str5(hsv.value))
rgb = colormodel.RGB(242, 67, 67)
hsv = a3.rgb_to_hsv(rgb)
cornelltest.assert_equals('0.000', a3.str5(hsv.hue))
cornelltest.assert_equals('0.723', a3.str5(hsv.saturation))
cornelltest.assert_equals('0.949', a3.str5(hsv.value))
rgb = colormodel.RGB(255, 0, 0)
hsv = a3.rgb_to_hsv(rgb)
cornelltest.assert_equals('0.000', a3.str5(hsv.hue))
cornelltest.assert_equals('1.000', a3.str5(hsv.saturation))
cornelltest.assert_equals('1.000', a3.str5(hsv.value))
#MAX = R and G < B
rgb = colormodel.RGB(123, 87, 99)
hsv = a3.rgb_to_hsv(rgb)
cornelltest.assert_equals('340.0', a3.str5(hsv.hue))
cornelltest.assert_equals('0.293', a3.str5(hsv.saturation))
cornelltest.assert_equals('0.482', a3.str5(hsv.value))
#MAX = G
rgb = colormodel.RGB(1, 6, 2)
hsv = a3.rgb_to_hsv(rgb)
cornelltest.assert_equals('132.0', a3.str5(hsv.hue))
cornelltest.assert_equals('0.833', a3.str5(hsv.saturation))
cornelltest.assert_equals('0.024', a3.str5(hsv.value))
#MAX = B
rgb = colormodel.RGB(12, 64, 242)
hsv = a3.rgb_to_hsv(rgb)
cornelltest.assert_equals('226.4', a3.str5(hsv.hue))
cornelltest.assert_equals('0.950', a3.str5(hsv.saturation))
cornelltest.assert_equals('0.949', a3.str5(hsv.value))
def complement_rgb(rgb):
"""Returns: the complement of color rgb.
Precondition: rgb is an RGB object"""
assert (type(rgb) == colormodel.RGB
), 'Value ' + ` rgb ` + ' is not a RGB object'
return colormodel.RGB(255 - rgb.red, 255 - rgb.green, 255 - rgb.blue)
def cmyk_to_rgb(cmyk):
"""Returns : color CMYK in space RGB.
Formulae from en.wikipedia.org/wiki/CMYK_color_model.
Parameter cmyk: the color to convert to a RGB object
Precondition: cmyk is an CMYK object."""
# Divide all rgb values by 100 to change range from 0..100.0 to 0..1.0
c = cmyk.cyan / 100
m = cmyk.magenta / 100
y = cmyk.yellow / 100
k = cmyk.black / 100
#Cmyk to rgb conversion formulas
r = ((1 - c) * (1 - k)) * 255
g = ((1 - m) * (1 - k)) * 255
b = ((1 - y) * (1 - k)) * 255
#Round numbers to convert values to int
r1 = int(round(r, 0))
g1 = int(round(g, 0))
b1 = int(round(b, 0))
#Return rgb values
return colormodel.RGB(r1, g1, b1)
def complement_rgb(rgb):
"""Returns: the complement of color rgb.
Parameter rgb: the color to complement
Precondition: rgb is an RGB object"""
return colormodel.RGB((255 - rgb.red), (255 - rgb.green), (255 - rgb.blue))
def complement_rgb(rgb):
"""Returns: the complement of color rgb.
Parameter rgb: the color to complement
Precondition: rgb is an RGB object"""
# THIS IS WRONG. FIX IT
return colormodel.RGB(255 - rgb.red, 255 - rgb.green, 255 - rgb.blue)
def on_rgb_press(self,r,g,b):
"""Call back to rgb button"""
self.rgb = colormodel.RGB(r, g, b)
self.hsv = a3.rgb_to_hsv(self.rgb)
assert (self.hsv == None or type(self.hsv) == colormodel.HSV), 'rgb_to_hsv does not return a HSV object'
self.cmyk = a3.rgb_to_cmyk(self.rgb)
assert (self.cmyk == None or type(self.cmyk) == colormodel.CMYK), 'rgb_to_cmyk does not return a CMYK object'
self.update()
def hsv_to_rgb(hsv):
#add 6 cases
"""Returns: color in RGB color space.
Formulae from http://en.wikipedia.org/wiki/HSV_color_space.
Parameter hsv: the color to convert to a RGB object
Precondition: hsv is an HSV object."""
rgb = colormodel.RGB(0, 0, 0)
h = hsv.hue
s = hsv.saturation
v = hsv.value
# r=rgb.red
#g=rgb.green
#b=rgb.blue
hi = math.floor(h / 60)
f = (h / 60) - hi
p = v * (1 - s)
q = v * (1 - (f * s))
t = v * (1 - (1 - f) * s)
if hi == 0:
r = v
g = t
b = p
elif hi == 1:
r = q
g = v
b = p
elif hi == 2:
r = p
g = v
b = t
elif hi == 3:
r = p
g = q
b = v
elif hi == 4:
r = t
g = p
b = v
elif hi == 5:
r = v
g = p
b = q
rgb.red = int(round(r * 255, 0))
rgb.green = int(round(g * 255, 0))
rgb.blue = int(round(b * 255, 0))
return rgb # Stub
def register(self):
"""Initialize color values and force refresh"""
active = True
self.rgb = colormodel.RGB(0, 255, 0)
self.cmyk = a3.rgb_to_cmyk(self.rgb)
assert (self.cmyk == None or type(self.cmyk) == colormodel.CMYK), 'rgb_to_cmyk does not return a CMYK object'
self.hsv = a3.rgb_to_hsv(self.rgb)
assert (self.hsv == None or type(self.hsv) == colormodel.HSV), 'rgb_to_hsv does not return a HSV object'
self.update()
def complement_rgb(rgb):
"""Returns: the complement of color rgb.
Parameter rgb: the color to complement
Precondition: rgb is an RGB object"""
color = colormodel.RGB(0, 0, 0)
color.red = 255 - rgb.red
color.green = 255 - rgb.green
color.blue = 255 - rgb.blue
return color
def test_rgb_to_cmyk():
"""Test rgb_to_cmyk"""
#Test rgb_to_cmyk() when C = M = Y = 0:
rgb = colormodel.RGB(255, 255, 255)
cmyk = a3.rgb_to_cmyk(rgb)
cunittest.assert_equals("0.000", a3.round5(cmyk.cyan))
cunittest.assert_equals("0.000", a3.round5(cmyk.magenta))
cunittest.assert_equals("0.000", a3.round5(cmyk.yellow))
cunittest.assert_equals("0.000", a3.round5(cmyk.black))
#Test rgb_to_cmyk() when C' = M' = Y' = 1:
rgb = colormodel.RGB(0, 0, 0)
cmyk = a3.rgb_to_cmyk(rgb)
cunittest.assert_equals("0.000", a3.round5(cmyk.cyan))
cunittest.assert_equals("0.000", a3.round5(cmyk.magenta))
cunittest.assert_equals("0.000", a3.round5(cmyk.yellow))
cunittest.assert_equals("100.0", a3.round5(cmyk.black))
#Test rgb_to_cmyk() when C' = K (=> C = 0):
rgb = colormodel.RGB(217, 43, 164)
cmyk = a3.rgb_to_cmyk(rgb)
cunittest.assert_equals("0.000", a3.round5(cmyk.cyan))
cunittest.assert_equals("80.18", a3.round5(cmyk.magenta))
cunittest.assert_equals("24.42", a3.round5(cmyk.yellow))
cunittest.assert_equals("14.90", a3.round5(cmyk.black))
#Test rgb_to_cmyk() when M' = K (=> M = 0):
rgb = colormodel.RGB(1, 100, 1)
cmyk = a3.rgb_to_cmyk(rgb)
cunittest.assert_equals("99.00", a3.round5(cmyk.cyan))
cunittest.assert_equals("0.000", a3.round5(cmyk.magenta))
cunittest.assert_equals("99.00", a3.round5(cmyk.yellow))
cunittest.assert_equals("60.78", a3.round5(cmyk.black))
#Test rgb_to_cmyk() when Y' = K (=> Y = 0):
rgb = colormodel.RGB(101, 40, 141)
cmyk = a3.rgb_to_cmyk(rgb)
cunittest.assert_equals("28.37", a3.round5(cmyk.cyan))
cunittest.assert_equals("71.63", a3.round5(cmyk.magenta))
cunittest.assert_equals("0.000", a3.round5(cmyk.yellow))
cunittest.assert_equals("44.71", a3.round5(cmyk.black))
def on_rgb_slide(self,r,g,b):
"""Call back to rgb sliders"""
if not self.active:
return
red = int(round(r / 100.0))
green = int(round(g / 100.0))
blue = int(round(b / 100.0))
self.rgb = colormodel.RGB(red, green, blue)
self.hsv = a3.rgb_to_hsv(self.rgb)
assert (self.hsv == None or type(self.hsv) == colormodel.HSV), 'rgb_to_hsv does not return a HSV object'
self.cmyk = a3.rgb_to_cmyk(self.rgb)
assert (self.cmyk == None or type(self.cmyk) == colormodel.CMYK), 'rgb_to_cmyk does not return a CMYK object'
self.update()
def test_complement():
"""Test function complement"""
cornelltest.assert_equals(colormodel.RGB(255 - 250, 255 - 0, 255 - 71),
a3.complement_rgb(colormodel.RGB(250, 0, 71)))
cornelltest.assert_equals(colormodel.RGB(255 - 255, 255 - 255, 255 - 255),
a3.complement_rgb(colormodel.RGB(255, 255, 255)))
cornelltest.assert_equals(colormodel.RGB(255 - 0, 255 - 0, 255 - 0),
a3.complement_rgb(colormodel.RGB(0, 0, 0)))
def hsv_to_rgb(hsv):
"""Returns: color in RGB color space.
Formulae from http://en.wikipedia.org/wiki/HSV_color_space.
Parameter hsv: the color to convert to a RGB object
Precondition: hsv is an HSV object."""
#Attributes of hsv
h = hsv.hue
s = hsv.saturation
v = hsv.value
#Computed values for conversion
hi = math.floor(h / 60)
f = h / 60 - hi
p = v * (1 - s)
q = v * (1 - f * s)
t = v * (1 - (1 - f) * s)
if hi == 0:
r = v
g = t
b = p
elif hi == 1:
r = q
g = v
b = p
elif hi == 2:
r = p
g = v
b = t
elif hi == 3:
r = p
g = q
b = v
elif hi == 4:
r = t
g = p
b = v
elif hi == 5:
r = v
g = p
b = q
#Round numbers to convert values to int
r1 = int(round(r * 255.0, 0))
g1 = int(round(g * 255.0, 0))
b1 = int(round(b * 255.0, 0))
return colormodel.RGB(r1, g1, b1)
def test_rgb_to_cmyk():
"""Test rgb_to_cmyk"""
rgb = colormodel.RGB(255, 255, 255)
cmyk = a3.rgb_to_cmyk(rgb)
cornelltest.assert_equals('0.000', a3.str5(cmyk.cyan))
cornelltest.assert_equals('0.000', a3.str5(cmyk.magenta))
cornelltest.assert_equals('0.000', a3.str5(cmyk.yellow))
cornelltest.assert_equals('0.000', a3.str5(cmyk.black))
rgb = colormodel.RGB(0, 0, 0)
cmyk = a3.rgb_to_cmyk(rgb)
cornelltest.assert_equals('0.000', a3.str5(cmyk.cyan))
cornelltest.assert_equals('0.000', a3.str5(cmyk.magenta))
cornelltest.assert_equals('0.000', a3.str5(cmyk.yellow))
cornelltest.assert_equals('100.0', a3.str5(cmyk.black))
rgb = colormodel.RGB(217, 43, 164)
cmyk = a3.rgb_to_cmyk(rgb)
cornelltest.assert_equals('0.000', a3.str5(cmyk.cyan))
cornelltest.assert_equals('80.18', a3.str5(cmyk.magenta))
cornelltest.assert_equals('24.42', a3.str5(cmyk.yellow))
cornelltest.assert_equals('14.90', a3.str5(cmyk.black))
rgb = colormodel.RGB(1, 3, 9)
cmyk = a3.rgb_to_cmyk(rgb)
cornelltest.assert_equals('88.89', a3.str5(cmyk.cyan))
cornelltest.assert_equals('66.67', a3.str5(cmyk.magenta))
cornelltest.assert_equals('0.000', a3.str5(cmyk.yellow))
cornelltest.assert_equals('96.47', a3.str5(cmyk.black))
rgb = colormodel.RGB(50, 80, 45)
cmyk = a3.rgb_to_cmyk(rgb)
cornelltest.assert_equals('37.50', a3.str5(cmyk.cyan))
cornelltest.assert_equals('0.000', a3.str5(cmyk.magenta))
cornelltest.assert_equals('43.75', a3.str5(cmyk.yellow))
cornelltest.assert_equals('68.63', a3.str5(cmyk.black))
def hsv_to_rgb(hsv):
"""Returns: color in RGB color space.
Formulae from http://en.wikipedia.org/wiki/HSV_color_space.
Precondition: hsv is an HSV object."""
assert (type(hsv) == colormodel.HSV), ('Value ' + ` hsv ` +
' is not an RGB object')
H = hsv.hue
S = hsv.saturation
V = hsv.value
H_sub_i = math.floor(H / 60)
f = H / 60 - H_sub_i
p = V * (1 - S)
q = V * (1 - f * S)
t = V * (1 - (1 - f) * S)
if H_sub_i == 0:
R = V
G = t
B = p
elif H_sub_i == 1:
R = q
G = V
B = p
elif H_sub_i == 2:
R = p
G = V
B = t
elif H_sub_i == 3:
R = p
G = q
B = V
elif H_sub_i == 4:
R = t
G = p
B = V
else:
R = V
G = p
B = q
return colormodel.RGB(int(round(255 * R)), int(round(255 * G)),
int(round(255 * B)))
def test_rgb_to_hsv():
"""Test translation function rgb_to_hsv"""
#Test rgb_to_hsv when MAX = MIN and MAX = 0:
rgb = colormodel.RGB(0, 0, 0)
hsv = a3.rgb_to_hsv(rgb)
cunittest.assert_equals("0.000", a3.round5(hsv.hue))
cunittest.assert_equals("0.000", a3.round5(hsv.saturation))
cunittest.assert_equals("0.000", a3.round5(hsv.value))
#Test rgb_to_hsv when MAX = MIN and MAX <> 0:
rgb = colormodel.RGB(100, 100, 100)
hsv = a3.rgb_to_hsv(rgb)
cunittest.assert_equals("0.000", a3.round5(hsv.hue))
cunittest.assert_equals("0.000", a3.round5(hsv.saturation))
cunittest.assert_equals("0.392", a3.round5(hsv.value))
#Test rgb_to_hsv when MAX = R and G >=B:
rgb = colormodel.RGB(161, 42, 42)
hsv = a3.rgb_to_hsv(rgb)
cunittest.assert_equals("0.000", a3.round5(hsv.hue))
cunittest.assert_equals("0.739", a3.round5(hsv.saturation))
cunittest.assert_equals("0.631", a3.round5(hsv.value))
rgb = colormodel.RGB(161, 72, 42)
hsv = a3.rgb_to_hsv(rgb)
cunittest.assert_equals("15.13", a3.round5(hsv.hue))
cunittest.assert_equals("0.739", a3.round5(hsv.saturation))
cunittest.assert_equals("0.631", a3.round5(hsv.value))
#Test rgb_to_hsv when MAX = R and G < B:
rgb = colormodel.RGB(161, 42, 72)
hsv = a3.rgb_to_hsv(rgb)
cunittest.assert_equals("344.9", a3.round5(hsv.hue))
cunittest.assert_equals("0.739", a3.round5(hsv.saturation))
cunittest.assert_equals("0.631", a3.round5(hsv.value))
#Test rgb_to_hsv when MAX = G:
rgb = colormodel.RGB(17, 101, 19)
hsv = a3.rgb_to_hsv(rgb)
cunittest.assert_equals("121.4", a3.round5(hsv.hue))
cunittest.assert_equals("0.832", a3.round5(hsv.saturation))
cunittest.assert_equals("0.396", a3.round5(hsv.value))
#Test rgb_to_hsv when MAX = B:
rgb = colormodel.RGB(21, 100, 255)
hsv = a3.rgb_to_hsv(rgb)
cunittest.assert_equals("219.7", a3.round5(hsv.hue))
cunittest.assert_equals("0.918", a3.round5(hsv.saturation))
cunittest.assert_equals("1.000", a3.round5(hsv.value))
def cmyk_to_rgb(cmyk):
"""Returns : color CMYK in space RGB.
Formulae from en.wikipedia.org/wiki/CMYK_color_model.
Parameter cmyk: the color to convert to a RGB object
Precondition: cmyk is an CMYK object."""
rgb = colormodel.RGB(0, 0, 0)
c = cmyk.cyan / 100.0
m = cmyk.magenta / 100.0
y = cmyk.yellow / 100.0
k = cmyk.black / 100.0
rgb.red = int(round((1 - c) * (1 - k) * 255, 0))
rgb.green = int(round((1 - m) * (1 - k) * 255, 0))
rgb.blue = int(round((1 - y) * (1 - k) * 255, 0))
return rgb
def test_rgb_to_hsv():
"""Test translation function rgb_to_hsv"""
rgb= colormodel.RGB(20,20,20)
hsv= a3.rgb_to_hsv(rgb)
cornelltest.assert_equals( '0.000', a3.str5(hsv.hue))
rgb= colormodel.RGB(100,25,20)
hsv= a3.rgb_to_hsv(rgb)
cornelltest.assert_equals( '3.750', a3.str5(hsv.hue))
cornelltest.assert_equals( '0.800', a3.str5(hsv.saturation))
cornelltest.assert_equals( '0.392', a3.str5(hsv.value))
rgb= colormodel.RGB(200,50,100)
hsv= a3.rgb_to_hsv(rgb)
cornelltest.assert_equals( '340.0', a3.str5(hsv.hue))
cornelltest.assert_equals( '0.750', a3.str5(hsv.saturation))
cornelltest.assert_equals( '0.784', a3.str5(hsv.value))
rgb= colormodel.RGB(20,100,20)
hsv= a3.rgb_to_hsv(rgb)
cornelltest.assert_equals( '120.0', a3.str5(hsv.hue))
cornelltest.assert_equals( '0.800', a3.str5(hsv.saturation))
cornelltest.assert_equals( '0.392', a3.str5(hsv.value))
rgb= colormodel.RGB(20,20,100)
hsv= a3.rgb_to_hsv(rgb)
cornelltest.assert_equals( '240.0', a3.str5(hsv.hue))
cornelltest.assert_equals( '0.800', a3.str5(hsv.saturation))
cornelltest.assert_equals( '0.392', a3.str5(hsv.value))
rgb= colormodel.RGB(0,0,0)
hsv= a3.rgb_to_hsv(rgb)
cornelltest.assert_equals( '0.000', a3.str5(hsv.hue))
cornelltest.assert_equals( '0.000', a3.str5(hsv.saturation))
cornelltest.assert_equals( '0.000', a3.str5(hsv.value))
rgb= colormodel.RGB(20,25,25)
hsv= a3.rgb_to_hsv(rgb)
cornelltest.assert_equals( '180.0', a3.str5(hsv.hue))
cornelltest.assert_equals( '0.200', a3.str5(hsv.saturation))
cornelltest.assert_equals( '0.098', a3.str5(hsv.value))
def test_to_strings():
"""Test toString methods"""
#Test rgb_to_string:()
cunittest.assert_equals("(30, 240, 230)",
a3.rgb_to_string(colormodel.RGB(30, 240, 230)))
#Test cmyk_to_string()
cunittest.assert_equals("(10.00, 11.00, 20.00, 12.00)",
a3.cmyk_to_string(colormodel.CMYK(10, 11, 20, 12)))
#Test that cmyk_to_string() uses round5(), not `truncate5()`:
cunittest.assert_equals(
"(10.01, 11.00, 20.01, 12.00)",
a3.cmyk_to_string(colormodel.CMYK(10.005, 11.0045, 20.009, 12.001)))
#Test hsv_to_string()
cunittest.assert_equals("(100.0, 1.000, 1.000)",
a3.hsv_to_string(colormodel.HSV(100, 1, 1)))
#Test that hsv_to_string uses round5(), not `truncate5()`:
cunittest.assert_equals(
"(100.0, 0.500, 0.499)",
a3.hsv_to_string(colormodel.HSV(99.999, .4996, .4994)))
def cmyk_to_rgb(cmyk):
"""Returns : color CMYK in space RGB.
Formulae from en.wikipedia.org/wiki/CMYK_color_model.
Precondition: cmyk is an CMYK object."""
assert (type(cmyk) == colormodel.CMYK), ('Value ' + ` cmyk ` +
' is not an RGB object')
C = cmyk.cyan / 100.0
M = cmyk.magenta / 100.0
Y = cmyk.yellow / 100.0
K = cmyk.black / 100.0
R = (1 - C) * (1 - K)
G = (1 - M) * (1 - K)
B = (1 - Y) * (1 - K)
return colormodel.RGB(int(round(255 * R)), int(round(255 * G)),
int(round(255 * B)))
def cmyk_to_rgb(cmyk):
"""Returns : color CMYK in space RGB.
Formulae from en.wikipedia.org/wiki/CMYK_color_model.
Parameter cmyk: the color to convert to a RGB object
Precondition: cmyk is an CMYK object."""
# The CMYK numbers are in the range 0.0..100.0. Deal with them in the
# same way as the RGB numbers in rgb_to_cmyk()
rgb = colormodel.RGB(0, 0, 0)
c = cmyk.cyan / 100.0
m = cmyk.magenta / 100.0
y = cmyk.yellow / 100.0
k = cmyk.black / 100.0
rgb.red = int(round((1 - c) * (1 - k) * 255, 0))
rgb.green = int(round((1 - m) * (1 - k) * 255, 0))
rgb.blue = int(round((1 - m) * (1 - k) * 255, 0))
return rgb # Stub
def test_rgb_to_hsv():
"""Test translation function rgb_to_hsv"""
rgb = colormodel.RGB(255, 255, 255)
hsv = a3.rgb_to_hsv(rgb)
cornelltest.assert_equals('0.000', a3.str5(hsv.hue))
cornelltest.assert_equals('0.000', a3.str5(hsv.saturation))
cornelltest.assert_equals('1.000', a3.str5(hsv.value))
rgb = colormodel.RGB(245, 87, 7)
hsv = a3.rgb_to_hsv(rgb)
cornelltest.assert_equals('20.17', a3.str5(hsv.hue))
cornelltest.assert_equals('0.971', a3.str5(hsv.saturation))
cornelltest.assert_equals('0.961', a3.str5(hsv.value))
rgb = colormodel.RGB(99, 33, 33)
hsv = a3.rgb_to_hsv(rgb)
cornelltest.assert_equals('0.000', a3.str5(hsv.hue))
cornelltest.assert_equals('0.667', a3.str5(hsv.saturation))
cornelltest.assert_equals('0.388', a3.str5(hsv.value))
rgb = colormodel.RGB(54, 2, 3)
hsv = a3.rgb_to_hsv(rgb)
cornelltest.assert_equals('358.8', a3.str5(hsv.hue))
cornelltest.assert_equals('0.963', a3.str5(hsv.saturation))
cornelltest.assert_equals('0.212', a3.str5(hsv.value))
rgb = colormodel.RGB(99, 100, 98)
hsv = a3.rgb_to_hsv(rgb)
cornelltest.assert_equals('90.00', a3.str5(hsv.hue))
cornelltest.assert_equals('0.020', a3.str5(hsv.saturation))
cornelltest.assert_equals('0.392', a3.str5(hsv.value))
rgb = colormodel.RGB(100, 1, 150)
hsv = a3.rgb_to_hsv(rgb)
cornelltest.assert_equals('279.9', a3.str5(hsv.hue))
cornelltest.assert_equals('0.993', a3.str5(hsv.saturation))
cornelltest.assert_equals('0.588', a3.str5(hsv.value))
rgb = colormodel.RGB(0, 0, 0)
hsv = a3.rgb_to_hsv(rgb)
cornelltest.assert_equals('0.000', a3.str5(hsv.hue))
cornelltest.assert_equals('0.000', a3.str5(hsv.saturation))
cornelltest.assert_equals('0.000', a3.str5(hsv.value))
def test_complement():
"""Test function complement"""
cunittest.assert_equals(colormodel.RGB(255 - 250, 255 - 0, 255 - 71),
a3.complement_rgb(colormodel.RGB(250, 0, 71)))
class ColorWidget(BoxLayout):
"""Instances represent the top level widget"""
active = True
rgb = colormodel.RGB(0, 255, 0)
cmyk = None
hsv = None
top = ObjectProperty(None)
bot = ObjectProperty(None)
def register(self):
"""Initialize color values and force refresh"""
self.rgb = colormodel.RGB(0, 255, 0)
self.cmyk = a3.rgb_to_cmyk(self.rgb)
assert (self.cmyk == None or type(self.cmyk) == colormodel.CMYK
), 'rgb_to_cmyk does not return a CMYK object'
self.hsv = a3.rgb_to_hsv(self.rgb)
assert (self.hsv == None or type(self.hsv)
== colormodel.HSV), 'rgb_to_hsv does not return a HSV object'
self.update()
def update(self):
"""Force refresh of top panel on update"""
self.active = False
self.top.update(self.rgb, self.cmyk, self.hsv)
self.active = True
def on_rgb_press(self, r, g, b):
"""Call back to rgb button"""
self.bot.clear()
self.rgb = colormodel.RGB(r, g, b)
self.hsv = a3.rgb_to_hsv(self.rgb)
assert (self.hsv == None or type(self.hsv)
== colormodel.HSV), 'rgb_to_hsv does not return a HSV object'
self.cmyk = a3.rgb_to_cmyk(self.rgb)
assert (self.cmyk == None or type(self.cmyk) == colormodel.CMYK
), 'rgb_to_cmyk does not return a CMYK object'
self.update()
def on_rgb_slide(self, r, g, b):
"""Call back to rgb sliders"""
if not self.active:
return
red = int(round(r / 100.0))
green = int(round(g / 100.0))
blue = int(round(b / 100.0))
self.rgb = colormodel.RGB(red, green, blue)
self.hsv = a3.rgb_to_hsv(self.rgb)
assert (self.hsv == None or type(self.hsv)
== colormodel.HSV), 'rgb_to_hsv does not return a HSV object'
self.cmyk = a3.rgb_to_cmyk(self.rgb)
assert (self.cmyk == None or type(self.cmyk) == colormodel.CMYK
), 'rgb_to_cmyk does not return a CMYK object'
self.update()
def on_cmyk_press(self, c, m, y, k):
"""Call back to cmyk button"""
self.bot.clear()
self.cmyk = colormodel.CMYK(c, m, y, k)
temp = a3.cmyk_to_rgb(self.cmyk)
assert (temp == None or type(temp)
== colormodel.RGB), 'cmyk_to_rgb does not return a RGB object'
self.rgb = self.rgb if temp is None else temp
self.hsv = a3.rgb_to_hsv(self.rgb)
assert (self.hsv == None or type(self.hsv)
== colormodel.HSV), 'rgb_to_hsv does not return a HSV object'
self.update()
def on_cmyk_slide(self, c, m, y, k):
"""Call back to cmyk sliders"""
if not self.active:
return
cyan = c / 100.0
magenta = m / 100.0
yellow = y / 100.0
black = k / 100.0
self.cmyk = colormodel.CMYK(cyan, magenta, yellow, black)
temp = a3.cmyk_to_rgb(self.cmyk)
assert (temp == None or type(temp)
== colormodel.RGB), 'cmyk_to_rgb does not return a RGB object'
self.rgb = self.rgb if temp is None else temp
self.hsv = a3.rgb_to_hsv(self.rgb)
assert (self.hsv == None or type(self.hsv)
== colormodel.HSV), 'rgb_to_hsv does not return a HSV object'
self.update()
def on_hsv_press(self, h, s, v):
"""Call back to hsv button"""
self.bot.clear()
self.hsv = colormodel.HSV(h, s, v)
temp = a3.hsv_to_rgb(self.hsv)
assert (temp == None or type(temp)
== colormodel.RGB), 'hsv_to_rgb does not return a RGB object'
self.rgb = self.rgb if temp is None else temp
self.cmyk = a3.rgb_to_cmyk(self.rgb)
assert (self.cmyk == None or type(self.cmyk) == colormodel.CMYK
), 'rgb_to_cmyk does not return a CMYK object'
self.update()
def on_hsv_slide(self, h, s, v):
"""Call back to hsv sliders"""
if not self.active:
return
hue = h / 100.0
sat = s / 100.0
val = v / 100.0
self.hsv = colormodel.HSV(hue, sat, val)
temp = a3.hsv_to_rgb(self.hsv)
assert (temp == None or type(temp)
== colormodel.RGB), 'hsv_to_rgb does not return a RGB object'
self.rgb = self.rgb if temp is None else temp
self.cmyk = a3.rgb_to_cmyk(self.rgb)
assert (self.cmyk == None or type(self.cmyk) == colormodel.CMYK
), 'rgb_to_cmyk does not return a CMYK object'
self.update()
class GLabel(GObject):
"""Instance represents an (uneditable) text label in `GameView`
The attribute `text` defines the content of this image. Uses of
the escape character '\\n' will result in a label that spans multiple
lines. The label includes both the text, and a rectangular backdrop
with bottom left corner at `pos` and width and height `size`. The
background color of this rectangle is `fillcolor`, while `linecolor`
is the color of the text.
The text itself is aligned within this rectangle according to the
attributes `halign` and `valign`. See the documentation of these
attributes for how alignment works. There are also attributes
to change the point size, font style, and font name of the text.
The `size` attribute of this label will grow to ensure that the
text will fit in the rectangle, no matter the font or point size.
To change the font, you need a .ttf (TrueType Font) file in the
Fonts folder; refer to the font by filename, including the .ttf.
If you give no name, it will use the default Kivy font. The
`bold` attribute only works for the default Kivy font; for other
fonts you will need the .ttf file for the bold version of that
font. See `ComicSans.ttf` and `ComicSansBold.ttf` for an example."""
# Fields. See the associated property.
_valign = 'bottom'
_halign = 'left'
# Override the fill color
_fillcolor = colormodel.RGB(0,0,0,0) # fill color field
_kivy_fill_color = ListProperty([0,0,0,0]) # Kivy representation of fill color
# Interior Kivy label. Hidden field with no property.
_label = None
@property
def font_size(self):
"""Size of the text font in points.
**Invariant**: A positive number (int or float)"""
return self._label.font_size
@font_size.setter
def font_size(self,value):
assert type(value) in (int,float), `value`+' is not a number'
self._label.font_size = value
self._label.texture_update()
@property
def font_name(self):
"""File name for the .ttf file to use as a font
**Invariant**: string referring to a .ttf file in folder Fonts"""
return self._label.font_name
@font_name.setter
def font_name(self,value):
assert type(value) == str, `value`+' is not a string'
self._label.font_name = value
self._label.texture_update()
@property
def bold(self):
"""Boolean indicating whether or not the text should be bold.
Only works on the default Kivy font. Does not work on custom
.ttf files. In that case, you need the bold version of the
.ttf file. See `ComicSans.ttf` and `ComicSansBold.ttf` for
an example.
**Invariant**: boolean"""
return self._label.bold
@bold.setter
def bold(self,value):
assert type(value) == bool, `value`+' is not a bool'
self._label.bold = value
self._label.texture_update()
@property
def text(self):
"""Text for this label.
The text in the label is displayed as a single line, or broken
up into multiple lines in the presence of the escape character
'\\n'. The `size` attribute of this label grows to make sure
that the entire text fits inside of the rectangle.
**Invariant**: string"""
return self._label.text
@text.setter
def text(self,value):
assert type(value) == str, `value`+' is not a string'
self._label.text = value
self._label.texture_update()
@property
def halign(self):
"""Horizontal alignment for this label.
The text is anchored inside of the label rectangle on either the
left, the right or the center. This means that as the size of
the label increases, the text will still stay rooted at that
anchor.
**Invariant**: one of 'left', 'right', or 'center'"""
return self._halign
@halign.setter
def halign(self,value):
assert value in ('left','right','center'), `value`+' is not a valid horizontal alignment'
self._halign = value
if not self._label is None:
self._label.halign = value
@property
def valign(self):
"""Vertical alignment for this label.
The text is anchored inside of the label rectangle at either the
top, the bottom or the middle. This means that as the size of
the label increases, the text will still stay rooted at that
anchor.
**Invariant**: one of 'top', 'bottom', or 'middle'"""
return self._valign
@valign.setter
def valign(self,value):
assert value in ('top','middle','bottom'), `value`+' is not a valid vertical alignment'
self._valign = value
if not self._label is None:
self._label.valign = value
@property
def linecolor(self):
"""The text color for this label.
Overrides `linecolor` property in `GObject`
**Invariant**: Must be a RGB or HSV object from module `colormodel`."""
return self._linecolor
@linecolor.setter
def linecolor(self,value):
assert type(value) in (colormodel.RGB, colormodel.HSV), `value`+' is not a valid color'
self._linecolor = value
if not self._label is None:
self._label.color = value.glColor()
def __init__(self,**keywords):
"""**Constructor**: creates a new text label.
:param keywords: dictionary of keyword arguments
**Precondition**: See below.
To use the constructor for this class, you should provide
it with a list of keyword arguments that initialize various
attributes. For example, to create a label containing the
word 'Hello', use the constructor call
GLabel(text='Hello')
This class supports the same keywords as `GObject`, as well
as additional attributes for the text properties (e.g. font
size and name)."""
self._label = Label(**keywords)
self._label.size_hint = (None,None)
super(GLabel,self).__init__(**keywords)
self.add_widget(self._label)
self.size = self._label.size
if 'halign' in keywords:
self.halign = keywords['halign']
if 'valign' in keywords:
self.valign = keywords['valign']
if not 'linecolor' in keywords:
self.linecolor = colormodel.BLACK
self._label.bind(texture_size=self._resize)
self.bind(pos=self._resize)
self._resize()
# Compute the size and pos from the text texture.
# Also align the internal label in the rectangle.
def _resize(self,instance=None,value=None):
self._label.size = self._label.texture_size
# Resize the outside if necessary
width = max(self.width,self._label.width)
height = max(self.height,self._label.height)
# Reset to horizontal anchor position.
if self._halign == 'left':
self.width = width
elif self._halign == 'center':
cx = self.center_x
self.width = width
self.center_x = cx
else:
right = self.right
self.width = width
self.right = right
# Reset to vertical anchor position.
if self._valign == 'top':
top = self.top
self.height = height
self.top = top
elif self._valign == 'middle':
cy = self.center_y
self.height = height
self.center_y = cy
else:
self.height = height
# Internal Horizontal placement
if self._halign == 'left':
self._label.x = self.x
elif self._halign == 'center':
self._label.center_x = self.center_x
else: # 'ightr'
self._label.right = self.right
# Internal Vertical placement
if self._valign == 'top':
self._label.top = self.top
elif self._valign == 'middle':
self._label.center_y = self.center_y
else: # 'bottom'
self._label.y = self.y
class GObject(Widget):
"""Base graphics object for a `GameView` class.
You should never make a GObject directly. Instead, you should use one of the
subclasses: GRectangle, GEllipse, GLine, GImage, and GLabel."""
# Fields. See the associated property.
_fillcolor = colormodel.RGB(0,0,0,1) # fill color field
_linecolor = colormodel.RGB(0,0,0,1) # line color field
# Kivy properties. For integration with graphics.kv
_kivy_fill_color = ListProperty([0,0,0,1]) # Kivy representation of fill color
_kivy_line_color = ListProperty([0,0,0,1]) # Kivy representation of line color
@property
def fillcolor(self):
"""The object fill color.
Used to color the backgrounds or, in the case of solid shapes, the shape
interior.
**Invariant**: Must be an RGB or HSV object from module `colormodel`."""
return self._fillcolor
@fillcolor.setter
def fillcolor(self,value):
assert type(value) in (colormodel.RGB, colormodel.HSV), `value`+' is not a valid color'
self._fillcolor = value
self._kivy_fill_color = value.glColor()
@property
def linecolor(self):
"""The object line color.
Used to color the foreground, text, or, in the case of solid shapes, the
shape border.
**Invariant**: Must be an RGB or HSV object from module `colormodel`."""
return self._linecolor
@linecolor.setter
def linecolor(self,value):
assert type(value) in (colormodel.RGB, colormodel.HSV), `value`+' is not a valid color'
self._linecolor = value
self._kivy_line_color = value.glColor()
def __init__(self,**keywords):
"""**Constructor**: creates a new graphics object.
:param keywords: dictionary of keyword arguments
**Precondition**: See below.
To use the constructor for this class, you should provide
it with a list of keyword arguments that initialize various
attributes. For example, to initialize the x position and
the fill color, use the constructor call
GObject(x=2,fillcolor=colormodel.RED)
You do not need to provide the keywords as a dictionary.
The ** in the parameter `keywords` does that automatically.
Any attribute of this class may be used as a keyword. The
argument must satisfy the invariants of that attribute. See
the list of attributes of this class for more information."""
super(GObject,self).__init__(**keywords)
if 'fillcolor' in keywords:
self.fillcolor = keywords['fillcolor']
if 'linecolor' in keywords:
self.linecolor = keywords['linecolor']
self.size_hint = (None,None)
def collide_widget(w):
# Prevent students from using this built-in method
pass
