manual/colorname.py

   1 #!/usr/bin/env python
   2 import sys, imp, re
   3 sys.path[:0] = [".."]
   4 import pyx
   5 from pyx import *
   6
   7 text.set(mode="latex")
   8 text.preamble(r"\renewcommand{\familydefault}{\ttdefault}")
   9 c = canvas.canvas()
  10
  11 # positioning is quite ugly ... but it works at the moment
  12 x = 0
  13 y = 0
  14 dx = 4.8
  15 dy = -0.65
  16 lastmodel = 0
  17
  18 # we could use (gray|rgb|cmyk).__dict__ to get the instances, but we
  19 # would loose the ordering ... instead we just parse the file:
  20 p = re.compile("(?P<id>(?P<model>[a-z]+)\\.(?P<name>[a-z]+)) += (?P=model)\\([0-9\\., ]+\\)\n", re.IGNORECASE)
  21 lines = imp.find_module("color", pyx.__path__)[0].readlines()
  22 for line in lines: # we yet don't use a file iterator
  23     m = p.match(line)
  24     if m:
  25         if lastmodel and (m.group("model") != lastmodel):
  26            y += dy
  27         myc = pyx.color.__dict__[m.group("model")].__dict__[m.group("name")]
  28         c.stroke(path.line(x + 0.1, y + 0.1, x + 0.4, y + 0.4), [myc])
  29         c.stroke(path.line(x + 0.4, y + 0.1, x + 0.1, y + 0.4), [myc])
  30         c.fill(path.rect(x + 0.5, y, 1, 0.5), [myc])
  31         c.stroke(path.line(x + 0.6, y + 0.1, x + 0.9, y + 0.4), [color.gray.black])
  32         c.stroke(path.line(x + 0.9, y + 0.1, x + 0.6, y + 0.4), [color.gray.black])
  33         c.stroke(path.line(x + 1.1, y + 0.1, x + 1.4, y + 0.4), [color.gray.white])
  34         c.stroke(path.line(x + 1.4, y + 0.1, x + 1.1, y + 0.4), [color.gray.white])
  35         c.text(x + 1.7, y + 0.15, m.group("id"), [text.size.footnotesize])
  36         y += dy
  37         lastmodel = m.group("model")
  38         if y < -16.5:
  39             y = 0
  40             x += dx
  41
  42 c.writeEPSfile("colorname", paperformat="a4")