in Tools/pynche/DetailsViewer.py [0:0]
def __delta(self, delta):
tie = []
if self.__rvar.get():
red = self.__red + delta
tie.append(red)
else:
red = self.__red
if self.__gvar.get():
green = self.__green + delta
tie.append(green)
else:
green = self.__green
if self.__bvar.get():
blue = self.__blue + delta
tie.append(blue)
else:
blue = self.__blue
# now apply at boundary behavior
atbound = self.__boundvar.get()
if atbound == STOP:
if red < 0 or green < 0 or blue < 0 or \
red > 255 or green > 255 or blue > 255:
# then
red, green, blue = self.__red, self.__green, self.__blue
elif atbound == WRAP or (atbound == RATIO and len(tie) < 2):
if red < 0:
red += 256
if green < 0:
green += 256
if blue < 0:
blue += 256
if red > 255:
red -= 256
if green > 255:
green -= 256
if blue > 255:
blue -= 256
elif atbound == RATIO:
# for when 2 or 3 colors are tied together
dir = 0
for c in tie:
if c < 0:
dir = -1
elif c > 255:
dir = 1
if dir == -1:
delta = max(tie)
if self.__rvar.get():
red = red + 255 - delta
if self.__gvar.get():
green = green + 255 - delta
if self.__bvar.get():
blue = blue + 255 - delta
elif dir == 1:
delta = min(tie)
if self.__rvar.get():
red = red - delta
if self.__gvar.get():
green = green - delta
if self.__bvar.get():
blue = blue - delta
elif atbound == GRAV:
if red < 0:
red = 0
if green < 0:
green = 0
if blue < 0:
blue = 0
if red > 255:
red = 255
if green > 255:
green = 255
if blue > 255:
blue = 255
self.__sb.update_views(red, green, blue)
self.__root.update_idletasks()