def test_rgb_to_hsv():
"""
Test translation function rgb_to_hsv
"""
rgb = introcs.RGB(255, 255, 255)
hsv = a2.rgb_to_hsv(rgb)
introcs.assert_equals('0.000', a2.str5(hsv.hue))
introcs.assert_equals('0.000', a2.str5(hsv.saturation))
introcs.assert_equals('1.000', a2.str5(hsv.value))
rgb = introcs.RGB(62, 7, 7)
hsv = a2.rgb_to_hsv(rgb)
introcs.assert_equals('0.000', a2.str5(hsv.hue))
introcs.assert_equals('0.887', a2.str5(hsv.saturation))
introcs.assert_equals('0.243', a2.str5(hsv.value))
rgb = introcs.RGB(188, 56, 9)
hsv = a2.rgb_to_hsv(rgb)
introcs.assert_equals('15.75', a2.str5(hsv.hue))
introcs.assert_equals('0.952', a2.str5(hsv.saturation))
introcs.assert_equals('0.737', a2.str5(hsv.value))
rgb = introcs.RGB(6, 2, 8)
hsv = a2.rgb_to_hsv(rgb)
introcs.assert_equals('280.0', a2.str5(hsv.hue))
introcs.assert_equals('0.750', a2.str5(hsv.saturation))
introcs.assert_equals('0.031', a2.str5(hsv.value))
rgb = introcs.RGB(24, 178, 88)
hsv = a2.rgb_to_hsv(rgb)
introcs.assert_equals('144.9', a2.str5(hsv.hue))
introcs.assert_equals('0.865', a2.str5(hsv.saturation))
introcs.assert_equals('0.698', a2.str5(hsv.value))
def on_rgb_press(self,r,g,b):
"""
Callback to rgb button
"""
self.rgb = introcs.RGB(r, g, b)
self.hsv = a2.rgb_to_hsv(self.rgb)
assert (self.hsv == None or type(self.hsv) == introcs.HSV), \
'rgb_to_hsv does not return a HSV object'
self.cmyk = a2.rgb_to_cmyk(self.rgb)
assert (self.cmyk == None or type(self.cmyk) == introcs.CMYK), \
'rgb_to_cmyk does not return a CMYK object'
self.update()
def on_cmyk_press(self,c,m,y,k):
"""
Callback to cmyk button
"""
self.cmyk = introcs.CMYK(c, m, y, k)
temp = a2.cmyk_to_rgb(self.cmyk)
assert (temp == None or type(temp) == introcs.RGB), \
'cmyk_to_rgb does not return a RGB object'
self.rgb = self.rgb if temp is None else temp
self.hsv = a2.rgb_to_hsv(self.rgb)
assert (self.hsv == None or type(self.hsv) == introcs.HSV), \
'rgb_to_hsv does not return a HSV object'
self.update()
def register(self):
"""
Initializes color values and forces refresh
"""
active = True
self.rgb = introcs.RGB(0, 255, 0)
self.cmyk = a2.rgb_to_cmyk(self.rgb)
assert (self.cmyk == None or type(self.cmyk) == introcs.CMYK), \
'rgb_to_cmyk does not return a CMYK object'
self.hsv = a2.rgb_to_hsv(self.rgb)
assert (self.hsv == None or type(self.hsv) == introcs.HSV), \
'rgb_to_hsv does not return a HSV object'
self.top.register()
self.update()
def on_rgb_slide(self,r,g,b):
"""
Callback 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 = introcs.RGB(red, green, blue)
self.hsv = a2.rgb_to_hsv(self.rgb)
assert (self.hsv == None or type(self.hsv) == introcs.HSV), \
'rgb_to_hsv does not return a HSV object'
self.cmyk = a2.rgb_to_cmyk(self.rgb)
assert (self.cmyk == None or type(self.cmyk) == introcs.CMYK), \
'rgb_to_cmyk does not return a CMYK object'
self.update()
def on_cmyk_slide(self,c,m,y,k):
"""
Callback 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 = introcs.CMYK(cyan, magenta, yellow, black)
temp = a2.cmyk_to_rgb(self.cmyk)
assert (temp == None or type(temp) == introcs.RGB),\
'cmyk_to_rgb does not return a RGB object'
self.rgb = self.rgb if temp is None else temp
self.hsv = a2.rgb_to_hsv(self.rgb)
assert (self.hsv == None or type(self.hsv) == introcs.HSV), \
'rgb_to_hsv does not return a HSV object'
self.update()
def update(self, rgb, cmyk, hsv):
"""
Refreshes the color and text display in the color panels
"""
compRGB = a2.complement_rgb(rgb)
if (compRGB is None):
compRGB = rgb
rgb_str = rgb_to_str(rgb)
cmyk_str = '' if cmyk is None else str5_cmyk(cmyk)
hsv_str = '' if hsv is None else str5_hsv(hsv)
self.main.text = ("ORIGINAL COLOR\n\n"+
"Color\nRGB: " + rgb_str +
"\nCMYK: " + cmyk_str +
"\nHSV: " + hsv_str + "\n \n" +
"R,G,B sliders in: 0..255\n" +
"C,M,Y,K sliders: 0 to 100%\n" +
"H slider: 0 <= H < 360 degrees\n" +
"S,V sliders: 0 <= S,V <= 1")
self.main.background = rgb.glColor()
self.main.foreground = compRGB.glColor()
if self.menu.text in self.menu.data:
matrix = self.menu.data[self.menu.text]
else:
matrix = self.menu.data['Normal']
cbrgb = a2.apply_matrix(matrix,rgb)
rgb_str = rgb_to_str(cbrgb)
try:
cmyk_str = str5_cmyk(a2.rgb_to_cmyk(cbrgb))
if cmyk_str is None:
cmyk_str = ''
except:
cmyk_str = ''
try:
hsv_str = str5_hsv(a2.rgb_to_hsv(cbrgb))
if hsv_str is None:
hsv_str = ''
except:
hsv_str = ''
self.comp.text = ("TRANSFORMED COLOR\n\n"+
"Color\nRGB: " + rgb_str +
"\nCMYK: " + cmyk_str +
"\nHSV: " + hsv_str + "\n \n" +
"R,G,B sliders in: 0..255\n" +
"C,M,Y,K sliders: 0 to 100%\n" +
"H slider: 0 <= H < 360 degrees\n" +
"S,V sliders: 0 <= S,V <= 1" )
self.comp.background = cbrgb.glColor()
self.comp.foreground = a2.apply_matrix(matrix,compRGB).glColor()
# set the sliders
self.rSlider.value = rgb.red*100
self.gSlider.value = rgb.green*100
self.bSlider.value = rgb.blue*100
self.cSlider.value = 0 if cmyk is None else cmyk.cyan*100
self.mSlider.value = 0 if cmyk is None else cmyk.magenta*100
self.ySlider.value = 0 if cmyk is None else cmyk.yellow*100
self.kSlider.value = 0 if cmyk is None else cmyk.black*100
self.hSlider.value = 0 if hsv is None else hsv.hue*100
self.sSlider.value = 0 if hsv is None else hsv.saturation*100
self.vSlider.value = 0 if hsv is None else hsv.value*100