manual/colorname.py

   1 #!/usr/bin/env python
   2 import imp, re
   3 import pyx
   4 from pyx import *
   5
   6 text.set(mode="latex")
   7 text.preamble(r"\renewcommand{\familydefault}{\ttdefault}")
   8 c = canvas.canvas()
   9
  10 # positioning is quite ugly ... but it works at the moment
  11 x = 0
  12 y = 0
  13 dx = 4.8
  14 dy = -0.65
  15 lastmodel = 0
  16
  17 # we could use (gray|rgb|cmyk).__dict__ to get the instances, but we
  18 # would loose the ordering ... instead we just parse the file:
  19
  20 # TODO: code something along the lines of c.l.p post cbs38g$2kp$04$1@news.t-online.com
  21
  22 p = re.compile("(?P<id>(?P<model>[a-z]+)\\.(?P<name>[a-z]+)) += (?P=model)\\([0-9\\., ]+\\)\n", re.IGNORECASE)
  23 lines = imp.find_module("color", pyx.__path__)[0].readlines()
  24 for line in lines: # we yet don't use a file iterator
  25     m = p.match(line)
  26     if m:
  27         if lastmodel and (m.group("model") != lastmodel):
  28            y += dy
  29         myc = pyx.color.__dict__[m.group("model")].__dict__[m.group("name")]
  30         c.stroke(path.line(x + 0.1, y + 0.1, x + 0.4, y + 0.4), [myc])
  31         c.stroke(path.line(x + 0.4, y + 0.1, x + 0.1, y + 0.4), [myc])
  32         c.fill(path.rect(x + 0.5, y, 1, 0.5), [myc])
  33         c.stroke(path.line(x + 0.6, y + 0.1, x + 0.9, y + 0.4), [color.gray.black])
  34         c.stroke(path.line(x + 0.9, y + 0.1, x + 0.6, y + 0.4), [color.gray.black])
  35         c.stroke(path.line(x + 1.1, y + 0.1, x + 1.4, y + 0.4), [color.gray.white])
  36         c.stroke(path.line(x + 1.4, y + 0.1, x + 1.1, y + 0.4), [color.gray.white])
  37         c.text(x + 1.7, y + 0.15, m.group("id"), [text.size.footnotesize])
  38         y += dy
  39         lastmodel = m.group("model")
  40         if y < -16.5:
  41             y = 0
  42             x += dx
  43
  44 c.writePDFfile()