inter/misc/tools/postprocess-vf.py
Rasmus Andersson 3f174fcef6 Remove slnt/ital VF axis
This removes the slant/italic variable axis and breaks up the font in two: roman and italic. This change will allow diverging designs for italic (for example single-storey a). It also addresses the fact that most software, including web browsers, doesn't handle VFs with slnt or ital well.
2022-09-26 17:09:36 -07:00

115 lines
3 KiB
Python

import sys, os, os.path, argparse, re
from fontTools.ttLib import TTFont
# Adoptation of fonttools/blob/master/Snippets/rename-fonts.py
WINDOWS_ENGLISH_IDS = 3, 1, 0x409
MAC_ROMAN_IDS = 1, 0, 0
LEGACY_FAMILY = 1
SUBFAMILY_NAME = 2
TRUETYPE_UNIQUE_ID = 3
FULL_NAME = 4
POSTSCRIPT_NAME = 6
PREFERRED_FAMILY = 16
TYPO_SUBFAMILY_NAME = 17
WWS_FAMILY = 21
FAMILY_RELATED_IDS = set([
LEGACY_FAMILY,
TRUETYPE_UNIQUE_ID,
FULL_NAME,
POSTSCRIPT_NAME,
PREFERRED_FAMILY,
WWS_FAMILY,
])
whitespace_re = re.compile(r'\s+')
def remove_whitespace(s):
return whitespace_re.sub("", s)
def set_full_name(font, fullName, fullNamePs):
nameTable = font["name"]
nameTable.setName(fullName, FULL_NAME, 1, 0, 0) # mac
nameTable.setName(fullName, FULL_NAME, 3, 1, 0x409) # windows
nameTable.setName(fullNamePs, POSTSCRIPT_NAME, 1, 0, 0) # mac
nameTable.setName(fullNamePs, POSTSCRIPT_NAME, 3, 1, 0x409) # windows
def get_family_name(font):
nameTable = font["name"]
r = None
for plat_id, enc_id, lang_id in (WINDOWS_ENGLISH_IDS, MAC_ROMAN_IDS):
for name_id in (PREFERRED_FAMILY, LEGACY_FAMILY):
r = nameTable.getName(nameID=name_id, platformID=plat_id, platEncID=enc_id, langID=lang_id)
if r is not None:
break
if r is not None:
break
if not r:
raise ValueError("family name not found")
return r.toUnicode()
def fix_fullname(font):
fullName = get_family_name(font)
fullNamePs = remove_whitespace(fullName)
set_full_name(font, fullName, fullNamePs)
return fullName
# def clear_subfamily_name(font):
# nameTable = font["name"]
# rmrecs = []
# for rec in nameTable.names:
# if rec.nameID == SUBFAMILY_NAME or rec.nameID == TYPO_SUBFAMILY_NAME:
# rmrecs.append(rec)
# for rec in rmrecs:
# nameTable.removeNames(rec.nameID, rec.platformID, rec.platEncID, rec.langID)
def fix_unique_id(font, fullName):
fontIdRecs = []
newId = ''
nameTable = font["name"]
for rec in nameTable.names:
if rec.nameID == TRUETYPE_UNIQUE_ID:
if newId == '':
oldId = rec.toUnicode()
newId = remove_whitespace(fullName)
p = oldId.find(':')
if p > -1:
newId += oldId[p:]
fontIdRecs.append(rec)
for rec in fontIdRecs:
nameTable.setName(newId, rec.nameID, rec.platformID, rec.platEncID, rec.langID)
def main():
argparser = argparse.ArgumentParser(description='Fix names in variable font')
a = lambda *args, **kwargs: argparser.add_argument(*args, **kwargs)
a('-o', '--output', metavar='<file>',
help='Output font file. Defaults to input file (overwrite)')
a('input', metavar='<file>',
help='Input font file')
args = argparser.parse_args()
infile = args.input
outfile = args.output or infile
font = TTFont(infile, recalcBBoxes=False, recalcTimestamp=False)
fullName = fix_fullname(font)
fix_unique_id(font, fullName)
#clear_subfamily_name(font)
font.save(outfile)
font.close()
if __name__ == '__main__':
main()