Fix colors breaking floating css because fuck

config/rotate.py

@@ -0,0 +1,129 @@
+#! /usr/local/bin/python3
+
+def main(args) :
+   print("args", args)
+   for i in args :
+      rotate(i)
+
+def rotate(x) :
+   print("input: {}", x)
+   rgb = hex_to_rgb(x)
+   print("rgb:   {}", rgb)
+   hsl = rgb_to_hsl(rgb)
+   print("hsl:   {}", hsl)
+   import os
+   env = os.environ
+   if "DEG" in env :
+      deg = int(env["DEG"])
+   else :
+      deg = 110
+   hsl = rotate_hsl(hsl, deg)
+   print("hsl':  {}", hsl)
+   rgb = hsl_to_rgb(hsl)
+   print("rgb':  {}", rgb)
+   print(rgb_to_hex(rgb))
+
+def hex_to_rgb(x) :
+   if x.startswith("#") :
+      x = x[1:]
+   r = x[0:2]
+   g = x[2:4]
+   b = x[4:6]
+   return (
+      hex_to_dec(r),
+      hex_to_dec(g),
+      hex_to_dec(b),
+   )
+
+def hex_to_dec(x) :
+   s = 0
+   mul = 1
+   for i in range(len(x)):
+      c = x[len(x)-i-1]
+      c = c.upper()
+      digit = ord(c) - ord('0')
+      if not c.isdigit() :
+         digit = ord(c) - ord('A') + 10
+      s += mul * digit
+      mul *= 16
+   return s
+
+def rgb_to_hsl(rgb) :
+   return (
+       compute_h(rgb),
+       compute_s(rgb),
+       compute_l(rgb),
+   )
+
+def compute_h(rgb) :
+   r, g, b, cmax, cmin, delta = compute_hsl_const(rgb)
+   if delta == 0 :
+      return 0
+   if r == cmax :
+      return 60 * ( ( (g - b)/delta ) % 6)
+   if g == cmax :
+      return 60 * ( ( (b - r)/delta ) + 2)
+   if b == cmax :
+      return 60 * ( ( (r - g)/delta ) + 4)
+
+def compute_s(rgb) :
+   r, g, b, cmax, cmin, delta = compute_hsl_const(rgb)
+   if delta == 0 :
+      return 0
+   return delta / ( 1 - (abs(2*compute_l(rgb)-1)) )
+
+def compute_l(rgb) :
+   r, g, b, cmax, cmin, delta = compute_hsl_const(rgb)
+   return (cmax + cmin) / 2
+
+def compute_hsl_const(rgb) :
+   rgb = [ i/255.0 for i in rgb ]
+   return rgb[:] + [max(rgb), min(rgb), max(rgb)-min(rgb)]
+
+def rotate_hsl(hsl, deg) :
+   return (
+      (hsl[0] + deg) % 360,
+      hsl[1],
+      hsl[2],
+   )
+
+def hsl_to_rgb(hsl) :
+   h = hsl[0]
+   s = hsl[1]
+   l = hsl[2]
+
+   c = s * (1 - abs(2 * l))
+   x = c * (1 - abs((h / 60) % 2 - 1))
+   m = l - (c / 2)
+
+   rgbp = ()
+   if h < 60 :
+      rgbp = (c, x, 0)
+   if h < 120 :
+      rgbp = (x, c, 0)
+   if h < 180 :
+      rgbp = (0, c, x)
+   if h < 240 :
+      rgbp = (0, x, c)
+   if h < 300 :
+      rgbp = (x, 0, c)
+   else:
+      rgbp = (c, 0, x)
+
+   r = rgbp[0]
+   g = rgbp[1]
+   b = rgbp[2]
+   return (
+      (r+m)*255,
+      (g+m)*255,
+      (b+m)*255,
+   )
+
+def rgb_to_hex(rgb) :
+   r = min(max(int(rgb[0]), 0), 255)
+   g = min(max(int(rgb[1]), 0), 255)
+   b = min(max(int(rgb[2]), 0), 255)
+   return "#{:02x}{:02x}{:02x}".format(r, g, b)
+
+from sys import argv
+main(argv[1:])