rainbowstream/colors.py

   1 import random
   2 import itertools
   3 from functools import wraps
   4 from pyfiglet import figlet_format
   5 from .config import *
   6 from functools import reduce
   7
   8
   9 def basic_color(code):
  10     """
  11     16 colors supported
  12     """
  13     def inner(text, bold=True):
  14         c = code
  15         if bold:
  16             c = "1;%s" % c
  17         return "\033[%sm%s\033[0m" % (c, text)
  18     return inner
  19
  20
  21 def RGB(code):
  22     """
  23     256 colors supported
  24     """
  25     def inner(text):
  26         c = code
  27         return "\033[38;5;%sm%s\033[0m" % (c, text)
  28     return inner
  29
  30
  31 default = basic_color('39')
  32 black = basic_color('30')
  33 red = basic_color('31')
  34 green = basic_color('32')
  35 yellow = basic_color('33')
  36 blue = basic_color('34')
  37 magenta = basic_color('35')
  38 cyan = basic_color('36')
  39 grey = basic_color('90')
  40 light_red = basic_color('91')
  41 light_green = basic_color('92')
  42 light_yellow = basic_color('93')
  43 light_blue = basic_color('94')
  44 light_magenta = basic_color('95')
  45 light_cyan = basic_color('96')
  46 white = basic_color('97')
  47
  48 on_default = basic_color('49')
  49 on_black = basic_color('40')
  50 on_red = basic_color('41')
  51 on_green = basic_color('42')
  52 on_yellow = basic_color('43')
  53 on_blue = basic_color('44')
  54 on_magenta = basic_color('45')
  55 on_cyan = basic_color('46')
  56 on_grey = basic_color('100')
  57 on_light_red = basic_color('101')
  58 on_light_green = basic_color('102')
  59 on_light_yellow = basic_color('103')
  60 on_light_blue = basic_color('104')
  61 on_light_magenta = basic_color('105')
  62 on_light_cyan = basic_color('106')
  63 on_white = basic_color('107')
  64
  65 def init_cycle():
  66     colors_shuffle = [locals()[i.encode('utf8')] if not i.startswith(
  67         'RGB_') else RGB(int(i[4:])) for i in c['CYCLE_COLOR']]
  68     cyc = itertools.cycle(colors_shuffle)
  69
  70 init_cycle()
  71
  72 def order_rainbow(s):
  73     """
  74     Print a string with ordered color with each character
  75     """
  76     c = [colors_shuffle[i % 7](s[i]) for i in xrange(len(s))]
  77     return reduce(lambda x, y: x + y, c)
  78
  79
  80 def random_rainbow(s):
  81     """
  82     Print a string with random color with each character
  83     """
  84     c = [random.choice(colors_shuffle)(i) for i in s]
  85     return reduce(lambda x, y: x + y, c)
  86
  87
  88 def Memoize(func):
  89     """
  90     Memoize decorator
  91     """
  92     cache = {}
  93
  94     @wraps(func)
  95     def wrapper(*args):
  96         if args not in cache:
  97             cache[args] = func(*args)
  98         return cache[args]
  99     return wrapper
 100
 101
 102 @Memoize
 103 def cycle_color(s):
 104     """
 105     Cycle the colors_shuffle
 106     """
 107     return next(cyc)(s)
 108
 109
 110 def ascii_art(text):
 111     """
 112     Draw the Ascii Art
 113     """
 114     fi = figlet_format(text, font='doom')
 115     print('\n'.join(
 116         [next(cyc)(i) for i in fi.split('\n')]
 117     )
 118     )