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(mode="tex", 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     tr = text.texrunner()
  30     for i in range(len(boxes)):
  31         if i < len(shapes):
  32             shape = shapes[i]
  33         c.stroke(path.rect(0, y, shape[0], -shape[1]))
  34         c.stroke(boxes[i].bbox().path(), [trafo.translate(0, y), color.rgb.red])
  35         c.insert(boxes[i], [trafo.translate(0, y)])
  36         for mark in boxes[i].markers.keys():
  37             mx, my = boxes[i].markers[mark]
  38             c.insert(tr.text(mx,my+y, mark+"~", [text.size.tiny, text.halign.right]))
  39             if mark[:5] == "start":
  40                 c.fill(path.circle(mx, my+y, 0.05), [color.rgb.red])
  41             elif mark[:3] == "end":
  42                 c.fill(path.circle(mx, my+y, 0.05), [color.rgb.green])
  43             else:
  44                 raise "other marks in there!"
  45         y -= shape[1] + 3
  46     c.writeEPSfile("textboxes")
  47
  48 random.seed(0)
  49 shapes = [(10,7), (8,5)]*50
  50 n = 0
  51 only = 28
  52 while only is None or n <= only:
  53     print n
  54     n += 1
  55     if 1:
  56         thistext = randtext()
  57         thistextfile = open("debug.thistext", "w")
  58         thistextfile.write(thistext)
  59         thistextfile.close()
  60     else:
  61         thistextfile = open("debug.thistext", "r")
  62         thistext = thistextfile.read()
  63         thistextfile.close()
  64     if only is not None and n <= only:
  65         continue
  66     boxes = text.defaulttexrunner.textboxes(thistext, shapes)
  67     output(boxes, shapes)
  68     for i in range(len(boxes)):
  69         if i < len(shapes):
  70             shape = shapes[i]
  71         if abs(unit.topt(boxes[i].bbox().right()) - unit.topt(shape[0])) > 1:
  72             print ("right boundary differs:",
  73                    unit.topt(boxes[i].bbox().bottom()), -unit.topt(shape[1]),
  74                    unit.topt(boxes[i].bbox().right()), unit.topt(shape[0]),
  75                    i+1, len(boxes))
  76