I've got a Python program using PIL to render text, and it works great with all kinds of fonts. But it only draws "missing glyph" rectangles with wingdings or webdings.
Here's a sample that tries to draw every unicode character:
# Run this with .ttf file path as an argument, and also an encoding if you like.
# It will make 16 PNGs with all the characters drawn.
import sys
import Image, ImageDraw, ImageFont
size = 20
per = 64
chars = 0x10000
perpage = per*per
fontfile = sys.argv[1]
encoding = sys.argv[2] if len(sys.argv) > 2 else ''
font = ImageFont.truetype(sys.argv[1], size, encoding=encoding)
for page in range(0, chars//perpage):
im = Image.new("RGB", (size*per+30, size*per+30), '#ffffc0')
draw = ImageDraw.Draw(im)
for line in range(0, per):
for col in range(0, per):
c = page*perpage + line*per + col
draw.text((col*size, line*size), unichr(c), font=font, fill='black')
im.save('allchars_%03d.png' % page)
With Arial.ttf (or even better, ArialUni.ttf), I get 16 interesting PNGs. Searching for issues with PIL, some symbol fonts need to have their encoding specified. If I use Symbol.ttf, I get all missing glyphs until I specify "symb" as the encoding.
How do I get wingdings to work?