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textpath tries the adobe standard encoding as a default for fonts #112

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Merged
merged 1 commit into from
Jul 7, 2011
Merged

textpath tries the adobe standard encoding as a default for fonts #112

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45 changes: 37 additions & 8 deletions lib/matplotlib/textpath.py
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,8 @@

import numpy as np

import warnings

class TextToPath(object):
"""
A class that convert a given text to a path using ttf fonts.
Expand All @@ -32,6 +34,14 @@ def __init__(self):

self._texmanager = None

self._adobe_standard_encoding = self._get_adobe_standard_encoding()


def _get_adobe_standard_encoding(self):
enc_name = dviread.find_tex_file('8a.enc')
enc = dviread.Encoding(enc_name)
return dict([(c, i) for i, c in enumerate(enc.encoding)])

def _get_font(self, prop):
"""
find a ttf font.
Expand Down Expand Up @@ -312,14 +322,25 @@ def get_glyphs_tex(self, prop, s, glyph_map=None,
if font_and_encoding is None:
font_bunch = self.tex_font_map[dvifont.texname]
font = FT2Font(str(font_bunch.filename))
try:
font.select_charmap(1094992451) # select ADOBE_CUSTOM
except ValueError:
font.set_charmap(0)
if font_bunch.encoding:
enc = dviread.Encoding(font_bunch.encoding)

for charmap_name, charmap_code in [("ADOBE_CUSTOM", 1094992451),
("ADOBE_STANDARD", 1094995778)]:
try:
font.select_charmap(charmap_code)
except ValueError:
pass
else:
break
else:
enc = None
charmap_name = ""
warnings.warn("No supported encoding in font (%s)." % font_bunch.filename)

if charmap_name == "ADOBE_STANDARD" and font_bunch.encoding:
enc0 = dviread.Encoding(font_bunch.encoding)
enc = dict([(i, self._adobe_standard_encoding.get(c, None)) \
for i, c in enumerate(enc0.encoding)])
else:
enc = dict()
self._ps_fontd[dvifont.texname] = font, enc

else:
Expand All @@ -332,11 +353,19 @@ def get_glyphs_tex(self, prop, s, glyph_map=None,
if not char_id in glyph_map:
font.clear()
font.set_size(self.FONT_SCALE, self.DPI)
if enc: charcode = enc.get(glyph, None)
else: charcode = glyph

glyph0 = font.load_char(glyph, flags=ft2font_flag)
if charcode:
glyph0 = font.load_char(charcode, flags=ft2font_flag)
else:
warnings.warn("The glyph (%d) of font (%s) cannot be converted with the encoding. Glyph may be wrong" % (glyph, font_bunch.filename))

glyph0 = font.load_char(glyph, flags=ft2font_flag)

glyph_map_new[char_id] = self.glyph_to_path(glyph0)


glyph_ids.append(char_id)
xpositions.append(x1)
ypositions.append(y1)
Expand Down