def hinting_stats(font):
"""
Return file size differences for a hinted font compared to an dehinted version of same file
"""
from ttfautohint import ttfautohint, libttfautohint
from io import BytesIO
from fontTools.ttLib import TTFont
from fontTools.subset import main as pyftsubset
from fontbakery.profiles.shared_conditions import (is_ttf,
is_cff,
is_cff2)
if is_ttf(TTFont(font)):
original_buffer = BytesIO()
TTFont(font).save(original_buffer)
dehinted_buffer = ttfautohint(in_buffer=original_buffer.getvalue(),
dehint=True)
dehinted_size = len(dehinted_buffer)
version = libttfautohint.version_string
elif is_cff(TTFont(font)) or is_cff2(TTFont(font)):
ext = os.path.splitext(font)[1]
tmp = font.replace(ext, "-tmp-dehinted%s" % ext)
args = [font,
"--no-hinting",
"--glyphs=*",
"--ignore-missing-glyphs",
"--no-notdef-glyph",
"--no-recommended-glyphs",
"--no-layout-closure",
"--layout-features=*",
"--no-desubroutinize",
"--name-languages=*",
"--glyph-names",
"--no-prune-unicode-ranges",
"--output-file=%s" % tmp]
pyftsubset(args)
dehinted_size = os.stat(tmp).st_size
version = "" # TODO If there is a way, extract the psautohint version used?
os.remove(tmp)
else:
return None
return {
"dehinted_size": dehinted_size,
"hinted_size": os.stat(font).st_size,
"version": version
}
def hinting_stats(font):
"""
Return file size differences for a hinted font compared to an dehinted version of same file
"""
from io import BytesIO
from dehinter.font import dehint
from fontTools.ttLib import TTFont
from fontTools.subset import main as pyftsubset
from fontbakery.profiles.shared_conditions import (is_ttf,
is_cff,
is_cff2)
hinted_size = os.stat(font).st_size
ttFont = TTFont(font)
if is_ttf(ttFont):
dehinted_buffer = BytesIO()
dehint(ttFont, verbose=False)
ttFont.save(dehinted_buffer)
dehinted_buffer.seek(0)
dehinted_size = len(dehinted_buffer.read())
elif is_cff(ttFont) or is_cff2(ttFont):
ext = os.path.splitext(font)[1]
tmp = font.replace(ext, "-tmp-dehinted%s" % ext)
args = [font,
"--no-hinting",
"--glyphs=*",
"--ignore-missing-glyphs",
"--no-notdef-glyph",
"--no-recommended-glyphs",
"--no-layout-closure",
"--layout-features=*",
"--no-desubroutinize",
"--name-languages=*",
"--glyph-names",
"--no-prune-unicode-ranges",
"--output-file=%s" % tmp]
pyftsubset(args)
dehinted_size = os.stat(tmp).st_size
os.remove(tmp)
else:
return None
return {
"dehinted_size": dehinted_size,
"hinted_size": hinted_size,
}