def __init__(self, target, test, incremental, emit_config, ignored_cp,
only_cp, enabled_tests):
self.target = target
self.test = test
self.incremental = incremental # target is different version of same file
self.emit_config = emit_config # generate config lines
self.enabled_tests = enabled_tests or FontCompare.test_names
self.target_cmap = font_data.get_cmap(target)
self.test_cmap = font_data.get_cmap(test)
target_chars = set(self.target_cmap.keys()) - _get_excluded_chars()
if ignored_cp:
target_chars -= ignored_cp
if only_cp:
target_chars &= only_cp
self.target_chars = target_chars
# Assume version has two decimal places, which MTI fonts do but Adobe's do not.
target_version = font_data.printable_font_revision(target)
test_version = font_data.printable_font_revision(test)
target_names = font_data.get_name_records(target)
test_names = font_data.get_name_records(test)
self._log('target name: %s %s, version: %s' %
(target_names[1], target_names[2], target_version))
self._log('test name: %s %s, version %s' %
(test_names[1], test_names[2], test_version))
if emit_config:
font_family = test_names[1]
font_subfamily = test_names[2].replace(' ', '')
self._config('name like %s; weight like %s; version == %s' %
(font_family, font_subfamily, test_version))
def __init__(self, target, test, incremental, emit_config, ignored_cp, only_cp,
enabled_tests):
self.target = target
self.test = test
self.incremental = incremental # target is different version of same file
self.emit_config = emit_config # generate config lines
self.enabled_tests = enabled_tests or FontCompare.test_names
self.target_cmap = font_data.get_cmap(target)
self.test_cmap = font_data.get_cmap(test)
target_chars = set(self.target_cmap.keys()) - _get_excluded_chars()
if ignored_cp:
target_chars -= ignored_cp
if only_cp:
target_chars &= only_cp
self.target_chars = target_chars
# Assume version has two decimal places, which MTI fonts do but Adobe's do not.
target_version = font_data.printable_font_revision(target)
test_version = font_data.printable_font_revision(test)
target_names = font_data.get_name_records(target)
test_names = font_data.get_name_records(test)
self._log('target name: %s %s, version: %s' % (target_names[1], target_names[2], target_version))
self._log('test name: %s %s, version %s' % (test_names[1], test_names[2], test_version))
if emit_config:
font_family = test_names[1]
font_subfamily = test_names[2].replace(' ', '')
self._config('name like %s; weight like %s; version == %s' %
(font_family, font_subfamily, test_version))
def create_lookup(table, font, flag=0):
"""Create a Lookup based on mapping table."""
cmap = font_data.get_cmap(font)
ligatures = {}
for output, (ch1, ch2) in table.iteritems():
output = cmap[output]
ch1 = get_glyph_name_or_create(ch1, font)
ch2 = get_glyph_name_or_create(ch2, font)
ligature = otTables.Ligature()
ligature.CompCount = 2
ligature.Component = [ch2]
ligature.LigGlyph = output
try:
ligatures[ch1].append(ligature)
except KeyError:
ligatures[ch1] = [ligature]
ligature_subst = otTables.LigatureSubst()
ligature_subst.ligatures = ligatures
lookup = otTables.Lookup()
lookup.LookupType = 4
lookup.LookupFlag = flag
lookup.SubTableCount = 1
lookup.SubTable = [ligature_subst]
return lookup
def create_lookup(table, font, flag=0):
"""Create a Lookup based on mapping table."""
cmap = font_data.get_cmap(font)
ligatures = {}
for output, (ch1, ch2) in table.iteritems():
output = cmap[output]
ch1 = get_glyph_name_or_create(ch1, font)
ch2 = get_glyph_name_or_create(ch2, font)
ligature = otTables.Ligature()
ligature.CompCount = 2
ligature.Component = [ch2]
ligature.LigGlyph = output
try:
ligatures[ch1].append(ligature)
except KeyError:
ligatures[ch1] = [ligature]
ligature_subst = otTables.LigatureSubst()
ligature_subst.ligatures = ligatures
lookup = otTables.Lookup()
lookup.LookupType = 4
lookup.LookupFlag = flag
lookup.SubTableCount = 1
lookup.SubTable = [ligature_subst]
return lookup
def add_pua_cmap(source_file, target_file):
"""Add PUA characters to the cmap of the first font and save as second."""
font = ttLib.TTFont(source_file)
cmap = font_data.get_cmap(font)
for pua, (ch1, ch2) in (add_emoji_gsub.EMOJI_KEYCAPS.items()
+ add_emoji_gsub.EMOJI_FLAGS.items()):
if pua not in cmap:
glyph_name = get_glyph_name_from_gsub([ch1, ch2], font)
if glyph_name is not None:
cmap[pua] = glyph_name
font.save(target_file)
def add_pua_cmap(source_file, target_file):
"""Add PUA characters to the cmap of the first font and save as second."""
font = ttLib.TTFont(source_file)
cmap = font_data.get_cmap(font)
for pua, (ch1, ch2) in (add_emoji_gsub.EMOJI_KEYCAPS.items() +
add_emoji_gsub.EMOJI_FLAGS.items()):
if pua not in cmap:
glyph_name = get_glyph_name_from_gsub([ch1, ch2], font)
if glyph_name is not None:
cmap[pua] = glyph_name
font.save(target_file)
def get_glyph_name_or_create(char, font):
"""Return the glyph name for a character, creating if it doesn't exist."""
cmap = font_data.get_cmap(font)
if char in cmap:
return cmap[char]
glyph_name = agl.UV2AGL[char]
assert glyph_name not in font.glyphOrder
font['hmtx'].metrics[glyph_name] = [0, 0]
cmap[char] = glyph_name
if 'glyf' in font:
from fontTools.ttLib.tables import _g_l_y_f
empty_glyph = _g_l_y_f.Glyph()
font['glyf'].glyphs[glyph_name] = empty_glyph
font.glyphOrder.append(glyph_name)
return glyph_name
def get_glyph_name_or_create(char, font):
"""Return the glyph name for a character, creating if it doesn't exist."""
cmap = font_data.get_cmap(font)
if char in cmap:
return cmap[char]
glyph_name = agl.UV2AGL[char]
assert glyph_name not in font.glyphOrder
font['hmtx'].metrics[glyph_name] = [0, 0]
cmap[char] = glyph_name
if 'glyf' in font:
from fontTools.ttLib.tables import _g_l_y_f
empty_glyph = _g_l_y_f.Glyph()
font['glyf'].glyphs[glyph_name] = empty_glyph
font.glyphOrder.append(glyph_name)
return glyph_name
def merge_chars_from_bank(orig_font, bank_font, target_font, chars):
"""Merge glyphs from a bank font to another font.
Only the glyphs themselves, the horizontal metrics, and the cmaps will be
copied.
"""
bank_font = ttLib.TTFont(bank_font)
orig_font = ttLib.TTFont(orig_font)
bank_cmap = font_data.get_cmap(bank_font)
extra_cmap = {}
for char in sorted(chars):
assert char in bank_cmap
bank_glyph_name = bank_cmap[char]
assert bank_glyph_name not in orig_font['glyf'].glyphs
orig_font['glyf'][bank_glyph_name] = bank_font['glyf'][bank_glyph_name]
orig_font['hmtx'][bank_glyph_name] = bank_font['hmtx'][bank_glyph_name]
extra_cmap[char] = bank_glyph_name
font_data.add_to_cmap(orig_font, extra_cmap)
orig_font.save(target_font)
def merge_chars_from_bank(orig_font, bank_font, target_font, chars):
"""Merge glyphs from a bank font to another font.
Only the glyphs themselves, the horizontal metrics, and the cmaps will be
copied.
"""
bank_font = ttLib.TTFont(bank_font)
orig_font = ttLib.TTFont(orig_font)
bank_cmap = font_data.get_cmap(bank_font)
extra_cmap = {}
for char in sorted(chars):
assert char in bank_cmap
bank_glyph_name = bank_cmap[char]
assert bank_glyph_name not in orig_font['glyf'].glyphs
orig_font['glyf'][bank_glyph_name] = bank_font['glyf'][bank_glyph_name]
orig_font['hmtx'][bank_glyph_name] = bank_font['hmtx'][bank_glyph_name]
extra_cmap[char] = bank_glyph_name
font_data.add_to_cmap(orig_font, extra_cmap)
orig_font.save(target_font)
def get_glyph_name_from_gsub(char_seq, font):
"""Find the glyph name for ligature of a given character sequence from GSUB.
"""
cmap = font_data.get_cmap(font)
# FIXME: So many assumptions are made here.
try:
first_glyph = cmap[char_seq[0]]
rest_of_glyphs = [cmap[ch] for ch in char_seq[1:]]
except KeyError:
return None
for lookup in font['GSUB'].table.LookupList.Lookup:
ligatures = lookup.SubTable[0].ligatures
try:
for ligature in ligatures[first_glyph]:
if ligature.Component == rest_of_glyphs:
return ligature.LigGlyph
except KeyError:
continue
return None
def get_glyph_name_from_gsub(char_seq, font):
"""Find the glyph name for ligature of a given character sequence from GSUB.
"""
cmap = font_data.get_cmap(font)
# FIXME: So many assumptions are made here.
try:
first_glyph = cmap[char_seq[0]]
rest_of_glyphs = [cmap[ch] for ch in char_seq[1:]]
except KeyError:
return None
for lookup in font['GSUB'].table.LookupList.Lookup:
ligatures = lookup.SubTable[0].ligatures
try:
for ligature in ligatures[first_glyph]:
if ligature.Component == rest_of_glyphs:
return ligature.LigGlyph
except KeyError:
continue
return None
