You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
49 lines
1.6 KiB
49 lines
1.6 KiB
5 years ago
|
class Color:
|
||
|
|
|
||
|
|
def __init__(self, red, green, blue):
|
||
|
|
if not (Color.check_color_value(red) or Color.check_color_value(green) or Color.check_color_value(blue)):
|
||
|
|
print(f"Color is out of range")
|
||
|
|
return
|
||
|
|
self.red = red
|
||
|
|
self.green = green
|
||
|
|
self.blue = blue
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def from_hex(cls, hexstring):
|
||
|
|
"Initialize Color from hexstring (e.g. #ffffff)"
|
||
|
|
if isinstance(hexstring, str):
|
||
|
|
if hexstring[0] == '#':
|
||
|
|
hexstring = hexstring[1:]
|
||
|
|
if len(hexstring) == 6:
|
||
|
|
color = tuple(int(color[i:i+2], 16) for i in (0, 2, 4))
|
||
|
|
return cls(color[0], color[1], color[2])
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def from_name(cls, color_name):
|
||
|
|
"Initialize Color from name (e.g. 'white')"
|
||
|
|
color_name = str.lower(color_name)
|
||
|
|
|
||
|
|
if color_name == 'white':
|
||
|
|
return cls(255,255,255)
|
||
|
|
elif color_name == 'black':
|
||
|
|
return cls(0, 0, 0)
|
||
|
|
elif color_name == 'red':
|
||
|
|
return cls(255, 0, 0)
|
||
|
|
elif color_name == 'green':
|
||
|
|
return cls(0, 255, 0)
|
||
|
|
elif color_name == 'blue':
|
||
|
|
return cls(0, 0, 255)
|
||
|
|
else:
|
||
|
|
raise ValueError(f'Colorname {color_name} was not recognised')
|
||
|
|
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def check_color_value(value):
|
||
|
|
if not isinstance(value, int):
|
||
|
|
print(f"Colorvalue '{value}' is not a number")
|
||
|
|
return False
|
||
|
|
if value < 0 or value > 255:
|
||
|
|
print(f"Color value '{value}' is out of bounds (0-255)")
|
||
|
|
return False
|
||
|
|
return True
|