test/experimental/textboxes.py

   1 import sys; sys.path[:0] = ["../.."]
   2 import random, string
   3 from pyx import *
   4
   5 text.set(texipc=1)
   6 text.set(texdebug="debug.tex", usefiles=["debug.dvi", "debug.log"])
   7
   8 def randpar():
   9     return " ".join(["".join([random.choice(string.lowercase)
  10                               for j in range(random.randint(1, 3))])
  11                      for i in range(random.randint(100, 300))])
  12
  13 def randparwithdisplay():
  14     #par = "" # TODO allow for formulas at the beginning -- to be checked
  15     par = randpar()
  16     for i in range(random.randint(0, 3)):
  17         par += r"\display{}xxx\enddisplay{}"
  18         for j in range(random.randint(0, 1)):
  19             par += randpar()
  20     #return par # TODO allow for formulas at the end -- to be checked
  21     return par + randpar()
  22
  23 def randtext():
  24     return r"\par{}".join([randparwithdisplay() for i in range(random.randint(1, 10))])
  25
  26 def output(boxes, shapes):
  27     c = canvas.canvas()
  28     y = 0
  29     for i in range(len(boxes)):
  30         if i < len(shapes):
  31             shape = shapes[i]
  32         c.stroke(path.rect(0, y, shape[0], -shape[1]))
  33         c.stroke(boxes[i].bbox().path(), [trafo.translate(0, y), color.rgb.red])
  34         c.insert(boxes[i], [trafo.translate(0, y)])
  35         for mark in boxes[i].markers.keys():
  36             mx, my = boxes[i].markers[mark]
  37             if mark[:5] == "start":
  38                 c.fill(path.circle(mx, my+y, 0.05), [color.rgb.red])
  39             elif mark[:3] == "end":
  40                 c.fill(path.circle(mx, my+y, 0.05), [color.rgb.green])
  41             else:
  42                 raise "other marks in there!"
  43         y -= shape[1] + 3
  44     c.writeEPSfile("textboxes")
  45
  46 random.seed(0)
  47 shapes = [(10,7), (8,5)]*50
  48 n = 0
  49 only = 28
  50 while only is None or n <= only:
  51     print n
  52     n += 1
  53     thistext = randtext()
  54     if only is not None and n <= only:
  55         continue
  56     boxes = text.defaulttexrunner.textboxes(thistext, shapes)
  57     #output(boxes, shapes)
  58     for i in range(len(boxes)):
  59         if i < len(shapes):
  60             shape = shapes[i]
  61         if abs(unit.topt(boxes[i].bbox().right()) - unit.topt(shape[0])) > 1:
  62             print ("right boundary differs:",
  63                    unit.topt(boxes[i].bbox().bottom()), -unit.topt(shape[1]),
  64                    unit.topt(boxes[i].bbox().right()), unit.topt(shape[0]),
  65                    i+1, len(boxes))
  66