def test_check_unique_glyphnames():
""" Font contains unique glyph names? """
import io
from fontbakery.profiles.universal import com_google_fonts_check_unique_glyphnames as check
test_font_path = TEST_FILE("nunito/Nunito-Regular.ttf")
test_font = TTFont(test_font_path)
status, _ = list(check(test_font))[-1]
assert status == PASS
# Fonttools renames duplicate glyphs with #1, #2, ... on load.
# Code snippet from https://github.com/fonttools/fonttools/issues/149.
glyph_names = test_font.getGlyphOrder()
glyph_names[2] = glyph_names[3]
# Load again, we changed the font directly.
test_font = TTFont(test_font_path)
test_font.setGlyphOrder(glyph_names)
test_font['post'] # Just access the data to make fonttools generate it.
test_file = io.BytesIO()
test_font.save(test_file)
test_font = TTFont(test_file)
status, message = list(check(test_font))[-1]
assert status == FAIL
assert "space" in message
# Upgrade to post format 3.0 and roundtrip data to update TTF object.
test_font = TTFont(test_font_path)
test_font.setGlyphOrder(glyph_names)
test_font["post"].formatType = 3.0
test_file = io.BytesIO()
test_font.save(test_file)
test_font = TTFont(test_file)
status, message = list(check(test_font))[-1]
assert status == SKIP
def _layoutEngineOTLTablesRepresentationFactory(layoutEngine):
font = layoutEngine.font
ret = dict()
glyphOrder = sorted(font.keys())
if font.features.text:
otf = TTFont()
otf.setGlyphOrder(glyphOrder)
# compile with feaLib + markWriter/kernWriter
try:
compiler = FeatureCompiler(font, otf)
compiler.postProcess = lambda: None
compiler.compile()
for name in ("GDEF", "GSUB", "GPOS"):
if name in otf:
table = otf[name].compile(otf)
value = hb.Blob.create_for_array(table,
HB.MEMORY_MODE_READONLY)
ret[name] = value
except Exception:
# TODO: handle this in the UI
import traceback
print(traceback.format_exc(5))
# discard tables from incompletely parsed feature text
ret = dict()
return ret, glyphOrder
def test_check_unique_glyphnames():
""" Font contains unique glyph names? """
check = CheckTester(universal_profile,
"com.google.fonts/check/unique_glyphnames")
ttFont = TTFont(TEST_FILE("nunito/Nunito-Regular.ttf"))
assert_PASS(check(ttFont))
# Fonttools renames duplicate glyphs with #1, #2, ... on load.
# Code snippet from https://github.com/fonttools/fonttools/issues/149.
glyph_names = ttFont.getGlyphOrder()
glyph_names[2] = glyph_names[3]
# Load again, we changed the font directly.
ttFont = TTFont(TEST_FILE("nunito/Nunito-Regular.ttf"))
ttFont.setGlyphOrder(glyph_names)
ttFont['post'] # Just access the data to make fonttools generate it.
_file = io.BytesIO()
_file.name = ttFont.reader.file.name
ttFont.save(_file)
ttFont = TTFont(_file)
message = assert_results_contain(check(ttFont), FAIL,
"duplicated-glyph-names")
assert "space" in message
# Upgrade to post format 3.0 and roundtrip data to update TTF object.
ttFont = TTFont(TEST_FILE("nunito/Nunito-Regular.ttf"))
ttFont.setGlyphOrder(glyph_names)
ttFont["post"].formatType = 3.0
_file = io.BytesIO()
_file.name = ttFont.reader.file.name
ttFont.save(_file)
ttFont = TTFont(_file)
assert_SKIP(check(ttFont))
def makeTTFont():
glyphs = """
.notdef space slash fraction semicolon period comma ampersand
quotedblleft quotedblright quoteleft quoteright
zero one two three four five six seven eight nine
zero.oldstyle one.oldstyle two.oldstyle three.oldstyle
four.oldstyle five.oldstyle six.oldstyle seven.oldstyle
eight.oldstyle nine.oldstyle onequarter onehalf threequarters
onesuperior twosuperior threesuperior ordfeminine ordmasculine
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
a b c d e f g h i j k l m n o p q r s t u v w x y z
A.sc B.sc C.sc D.sc E.sc F.sc G.sc H.sc I.sc J.sc K.sc L.sc M.sc
N.sc O.sc P.sc Q.sc R.sc S.sc T.sc U.sc V.sc W.sc X.sc Y.sc Z.sc
A.alt1 A.alt2 A.alt3 B.alt1 B.alt2 B.alt3 C.alt1 C.alt2 C.alt3
a.alt1 a.alt2 a.alt3 a.end b.alt c.mid d.alt d.mid
e.begin e.mid e.end m.begin n.end s.end z.end
Eng Eng.alt1 Eng.alt2 Eng.alt3
A.swash B.swash C.swash D.swash E.swash F.swash G.swash H.swash
I.swash J.swash K.swash L.swash M.swash N.swash O.swash P.swash
Q.swash R.swash S.swash T.swash U.swash V.swash W.swash X.swash
Y.swash Z.swash
f_l c_h c_k c_s c_t f_f f_f_i f_f_l f_i o_f_f_i s_t f_i.begin
a_n_d T_h T_h.swash germandbls ydieresis yacute breve
grave acute dieresis macron circumflex cedilla umlaut ogonek caron
damma hamza sukun kasratan lam_meem_jeem noon.final noon.initial
by feature lookup sub table uni0327 uni0328 e.fina
""".split()
glyphs.extend("cid{:05d}".format(cid) for cid in range(800, 1001 + 1))
font = TTFont()
font.setGlyphOrder(glyphs)
return font
def __init__(self, ufo, ttFont=None, glyphSet=None, **kwargs):
"""
Args:
ufo: an object representing a UFO (defcon.Font or equivalent)
containing the features source data.
ttFont: a fontTools TTFont object where the generated OpenType
tables are added. If None, an empty TTFont is used, with
the same glyph order as the ufo object.
glyphSet: a (optional) dict containing pre-processed copies of
the UFO glyphs.
"""
self.ufo = ufo
if ttFont is None:
from fontTools.ttLib import TTFont
from ufo2ft.util import makeOfficialGlyphOrder
ttFont = TTFont()
ttFont.setGlyphOrder(makeOfficialGlyphOrder(ufo))
self.ttFont = ttFont
glyphOrder = ttFont.getGlyphOrder()
if glyphSet is not None:
assert set(glyphOrder) == set(glyphSet.keys())
else:
glyphSet = ufo
self.glyphSet = OrderedDict((gn, glyphSet[gn]) for gn in glyphOrder)
def makeTTFont():
glyphs = """
.notdef space slash fraction semicolon period comma ampersand
quotedblleft quotedblright quoteleft quoteright
zero one two three four five six seven eight nine
zero.oldstyle one.oldstyle two.oldstyle three.oldstyle
four.oldstyle five.oldstyle six.oldstyle seven.oldstyle
eight.oldstyle nine.oldstyle onequarter onehalf threequarters
onesuperior twosuperior threesuperior ordfeminine ordmasculine
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
a b c d e f g h i j k l m n o p q r s t u v w x y z
A.sc B.sc C.sc D.sc E.sc F.sc G.sc H.sc I.sc J.sc K.sc L.sc M.sc
N.sc O.sc P.sc Q.sc R.sc S.sc T.sc U.sc V.sc W.sc X.sc Y.sc Z.sc
A.alt1 A.alt2 A.alt3 B.alt1 B.alt2 B.alt3 C.alt1 C.alt2 C.alt3
a.alt1 a.alt2 a.alt3 a.end b.alt c.mid d.alt d.mid
e.begin e.mid e.end m.begin n.end s.end z.end
Eng Eng.alt1 Eng.alt2 Eng.alt3
A.swash B.swash C.swash D.swash E.swash F.swash G.swash H.swash
I.swash J.swash K.swash L.swash M.swash N.swash O.swash P.swash
Q.swash R.swash S.swash T.swash U.swash V.swash W.swash X.swash
Y.swash Z.swash
f_l c_h c_k c_s c_t f_f f_f_i f_f_l f_i o_f_f_i s_t f_i.begin
a_n_d T_h T_h.swash germandbls ydieresis yacute breve
grave acute dieresis macron circumflex cedilla umlaut ogonek caron
damma hamza sukun kasratan lam_meem_jeem noon.final noon.initial
""".split()
font = TTFont()
font.setGlyphOrder(glyphs)
return font
def _layoutEngineOTLTablesRepresentationFactory(layoutEngine):
import os
import tempfile
font = layoutEngine.font
gdef = gsub = gpos = None
if font.features.text:
otf = TTFont()
otf.setGlyphOrder(sorted(font.keys()))
# XXX hack around fontTools only reading from disk
fd, feaPath = tempfile.mkstemp()
f = open(feaPath, "w")
f.write(font.features.text)
f.close()
# compile with fontTools
try:
addOpenTypeFeatures(feaPath, otf)
except:
import traceback
print(traceback.format_exc(5))
finally:
os.close(fd)
os.remove(feaPath)
if "GDEF" in otf:
gdef = otf["GDEF"]
if "GSUB" in otf:
gsub = otf["GSUB"]
if "GPOS" in otf:
gpos = otf["GPOS"]
return gdef, gsub, gpos
def test_check_unique_glyphnames():
""" Font contains unique glyph names? """
import io
from fontbakery.profiles.universal import com_google_fonts_check_unique_glyphnames as check
test_font_path = TEST_FILE("nunito/Nunito-Regular.ttf")
test_font = TTFont(test_font_path)
status, _ = list(check(test_font))[-1]
assert status == PASS
# Fonttools renames duplicate glyphs with #1, #2, ... on load.
# Code snippet from https://github.com/fonttools/fonttools/issues/149.
glyph_names = test_font.getGlyphOrder()
glyph_names[2] = glyph_names[3]
# Load again, we changed the font directly.
test_font = TTFont(test_font_path)
test_font.setGlyphOrder(glyph_names)
test_font['post'] # Just access the data to make fonttools generate it.
test_file = io.BytesIO()
test_font.save(test_file)
test_font = TTFont(test_file)
status, message = list(check(test_font))[-1]
assert status == FAIL
assert "space" in message
# Upgrade to post format 3.0 and roundtrip data to update TTF object.
test_font = TTFont(test_font_path)
test_font.setGlyphOrder(glyph_names)
test_font["post"].formatType = 3.0
test_file = io.BytesIO()
test_font.save(test_file)
test_font = TTFont(test_file)
status, message = list(check(test_font))[-1]
assert status == SKIP
def check_mti_file(self, name, tableTag=None):
xml_expected_path = self.getpath("%s.ttx" % name + ('.'+tableTag if tableTag is not None else ''))
with open(xml_expected_path, 'rt', encoding="utf-8") as xml_expected_file:
xml_expected = xml_expected_file.read()
font = self.create_font()
with open(self.getpath("%s.txt" % name), 'rt', encoding="utf-8") as f:
table = mtiLib.build(f, font, tableTag=tableTag)
if tableTag is not None:
self.assertEqual(tableTag, table.tableTag)
tableTag = table.tableTag
# Make sure it compiles.
blob = table.compile(font)
# Make sure it decompiles.
decompiled = table.__class__()
decompiled.decompile(blob, font)
# XML from built object.
writer = XMLWriter(StringIO())
writer.begintag(tableTag); writer.newline()
table.toXML(writer, font)
writer.endtag(tableTag); writer.newline()
xml_built = writer.file.getvalue()
# XML from decompiled object.
writer = XMLWriter(StringIO())
writer.begintag(tableTag); writer.newline()
decompiled.toXML(writer, font)
writer.endtag(tableTag); writer.newline()
xml_binary = writer.file.getvalue()
self.expect_ttx(xml_binary, xml_built, fromfile='decompiled', tofile='built')
self.expect_ttx(xml_expected, xml_built, fromfile=xml_expected_path, tofile='built')
from fontTools.misc import xmlReader
f = StringIO()
f.write(xml_expected)
f.seek(0)
font2 = TTFont()
font2.setGlyphOrder(font.getGlyphOrder())
reader = xmlReader.XMLReader(f, font2)
reader.read(rootless=True)
# XML from object read from XML.
writer = XMLWriter(StringIO())
writer.begintag(tableTag); writer.newline()
font2[tableTag].toXML(writer, font)
writer.endtag(tableTag); writer.newline()
xml_fromxml = writer.file.getvalue()
self.expect_ttx(xml_expected, xml_fromxml, fromfile=xml_expected_path, tofile='fromxml')
def check_mti_file(self, name, tableTag=None):
xml_expected_path = self.getpath("%s.ttx" % name + ('.'+tableTag if tableTag is not None else ''))
with open(xml_expected_path, 'rt', encoding="utf-8") as xml_expected_file:
xml_expected = xml_expected_file.read()
font = self.create_font()
with open(self.getpath("%s.txt" % name), 'rt', encoding="utf-8") as f:
table = mtiLib.build(f, font, tableTag=tableTag)
if tableTag is not None:
self.assertEqual(tableTag, table.tableTag)
tableTag = table.tableTag
# Make sure it compiles.
blob = table.compile(font)
# Make sure it decompiles.
decompiled = table.__class__()
decompiled.decompile(blob, font)
# XML from built object.
writer = XMLWriter(StringIO(), newlinestr='\n')
writer.begintag(tableTag); writer.newline()
table.toXML(writer, font)
writer.endtag(tableTag); writer.newline()
xml_built = writer.file.getvalue()
# XML from decompiled object.
writer = XMLWriter(StringIO(), newlinestr='\n')
writer.begintag(tableTag); writer.newline()
decompiled.toXML(writer, font)
writer.endtag(tableTag); writer.newline()
xml_binary = writer.file.getvalue()
self.expect_ttx(xml_binary, xml_built, fromfile='decompiled', tofile='built')
self.expect_ttx(xml_expected, xml_built, fromfile=xml_expected_path, tofile='built')
from fontTools.misc import xmlReader
f = StringIO()
f.write(xml_expected)
f.seek(0)
font2 = TTFont()
font2.setGlyphOrder(font.getGlyphOrder())
reader = xmlReader.XMLReader(f, font2)
reader.read(rootless=True)
# XML from object read from XML.
writer = XMLWriter(StringIO(), newlinestr='\n')
writer.begintag(tableTag); writer.newline()
font2[tableTag].toXML(writer, font)
writer.endtag(tableTag); writer.newline()
xml_fromxml = writer.file.getvalue()
self.expect_ttx(xml_expected, xml_fromxml, fromfile=xml_expected_path, tofile='fromxml')
def test_decompile_empty_table(self):
font = TTFont()
glyphNames = [".notdef", "space"]
font.setGlyphOrder(glyphNames)
font["loca"] = newTable("loca")
font["loca"].locations = [0] * (len(glyphNames) + 1)
font["glyf"] = newTable("glyf")
font["glyf"].decompile(b"\x00", font)
self.assertEqual(len(font["glyf"]), 2)
self.assertEqual(font["glyf"][".notdef"].numberOfContours, 0)
self.assertEqual(font["glyf"]["space"].numberOfContours, 0)
def test_getPhantomPoints(self):
# https://github.com/fonttools/fonttools/issues/2295
font = TTFont()
glyphNames = [".notdef"]
font.setGlyphOrder(glyphNames)
font["loca"] = newTable("loca")
font["loca"].locations = [0] * (len(glyphNames) + 1)
font["glyf"] = newTable("glyf")
font["glyf"].decompile(b"\x00", font)
font["hmtx"] = newTable("hmtx")
font["hmtx"].metrics = {".notdef": (100, 0)}
font["head"] = newTable("head")
font["head"].unitsPerEm = 1000
self.assertEqual(font["glyf"].getPhantomPoints(".notdef", font, 0),
[(0, 0), (100, 0), (0, 0), (0, -1000)])
def _ensure_groups_grouped_in_glyph_order(
color_glyphs: MutableMapping[str, ColorGlyph],
ttfont: ttLib.TTFont,
reuse_groups: Tuple[Tuple[str, ...]],
):
# svg requires glyphs in same doc have sequential gids; reshuffle to make this true
glyph_order = ttfont.getGlyphOrder()[:-len(color_glyphs)]
gid = len(glyph_order)
for group in reuse_groups:
for glyph_name in group:
color_glyphs[glyph_name] = color_glyphs[glyph_name]._replace(
glyph_id=gid)
gid += 1
glyph_order.extend(group)
ttfont.setGlyphOrder(glyph_order)
def test_setGlyphOrder_also_updates_glyf_glyphOrder():
# https://github.com/fonttools/fonttools/issues/2060#issuecomment-1063932428
font = TTFont()
font.importXML(os.path.join(DATA_DIR, "TestTTF-Regular.ttx"))
current_order = font.getGlyphOrder()
assert current_order == font["glyf"].glyphOrder
new_order = list(current_order)
while new_order == current_order:
random.shuffle(new_order)
font.setGlyphOrder(new_order)
assert font.getGlyphOrder() == new_order
assert font["glyf"].glyphOrder == new_order
def makeTTFont():
glyphs = (
".notdef space slash fraction "
"zero one two three four five six seven eight nine "
"zero.oldstyle one.oldstyle two.oldstyle three.oldstyle "
"four.oldstyle five.oldstyle six.oldstyle seven.oldstyle "
"eight.oldstyle nine.oldstyle onehalf "
"A B C D E F G H I J K L M N O P Q R S T U V W X Y Z "
"a b c d e f g h i j k l m n o p q r s t u v w x y z "
"A.sc B.sc C.sc D.sc E.sc F.sc G.sc H.sc I.sc J.sc K.sc L.sc M.sc "
"N.sc O.sc P.sc Q.sc R.sc S.sc T.sc U.sc V.sc W.sc X.sc Y.sc Z.sc "
"A.alt1 A.alt2 A.alt3 B.alt1 B.alt2 B.alt3 C.alt1 C.alt2 C.alt3 "
"d.alt n.end s.end "
"c_h c_k c_s c_t f_f f_f_i f_i f_l o_f_f_i "
).split()
font = TTFont()
font.setGlyphOrder(glyphs)
return font
def makeTTFont():
glyphs = (
".notdef space slash fraction "
"zero one two three four five six seven eight nine "
"zero.oldstyle one.oldstyle two.oldstyle three.oldstyle "
"four.oldstyle five.oldstyle six.oldstyle seven.oldstyle "
"eight.oldstyle nine.oldstyle onehalf "
"A B C D E F G H I J K L M N O P Q R S T U V W X Y Z "
"a b c d e f g h i j k l m n o p q r s t u v w x y z "
"A.sc B.sc C.sc D.sc E.sc F.sc G.sc H.sc I.sc J.sc K.sc L.sc M.sc "
"N.sc O.sc P.sc Q.sc R.sc S.sc T.sc U.sc V.sc W.sc X.sc Y.sc Z.sc "
"A.alt1 A.alt2 A.alt3 B.alt1 B.alt2 B.alt3 C.alt1 C.alt2 C.alt3 "
"d.alt n.end s.end "
"f_l c_h c_k c_s c_t f_f f_f_i f_f_l f_i o_f_f_i s_t "
"grave acute dieresis macron circumflex cedilla umlaut ogonek caron "
"damma hamza sukun kasratan lam_meem_jeem ").split()
font = TTFont()
font.setGlyphOrder(glyphs)
return font
def _layoutEngineOTLTablesRepresentationFactory(layoutEngine):
font = layoutEngine.font
gdef = gsub = gpos = None
if font.features.text:
otf = TTFont()
otf.setGlyphOrder(sorted(font.keys()))
# compile with fontTools
try:
addOpenTypeFeaturesFromString(otf, font.features.text)
except:
import traceback
print(traceback.format_exc(5))
if "GDEF" in otf:
gdef = otf["GDEF"]
if "GSUB" in otf:
gsub = otf["GSUB"]
if "GPOS" in otf:
gpos = otf["GPOS"]
return gdef, gsub, gpos
def test_max_ctx_calc_features():
glyphs = '.notdef space A B C a b c'.split()
features = """
lookup GSUB_EXT useExtension {
sub a by b;
} GSUB_EXT;
lookup GPOS_EXT useExtension {
pos a b -10;
} GPOS_EXT;
feature sub1 {
sub A by a;
sub A B by b;
sub A B C by c;
sub [A B] C by c;
sub [A B] C [A B] by c;
sub A by A B;
sub A' C by A B;
sub a' by b;
sub a' b by c;
sub a from [A B C];
rsub a by b;
rsub a' by b;
rsub a b' by c;
rsub a b' c by A;
rsub [a b] c' by A;
rsub [a b] c' [a b] by B;
lookup GSUB_EXT;
} sub1;
feature pos1 {
pos A 20;
pos A B -50;
pos A B' 10 C;
lookup GPOS_EXT;
} pos1;
"""
font = TTFont()
font.setGlyphOrder(glyphs)
addOpenTypeFeaturesFromString(font, features)
assert maxCtxFont(font) == 3
def _layoutEngineOTLTablesRepresentationFactory(layoutEngine):
font = layoutEngine.font
gdef = gsub = gpos = None
if font.features.text:
otf = TTFont()
otf.setGlyphOrder(sorted(font.keys()))
# compile with fontTools
try:
addOpenTypeFeaturesFromString(otf, font.features.text)
except:
import traceback
print(traceback.format_exc(5))
if "GDEF" in otf:
gdef = otf["GDEF"]
if "GSUB" in otf:
gsub = otf["GSUB"]
if "GPOS" in otf:
gpos = otf["GPOS"]
return gdef, gsub, gpos
def test_max_ctx_calc_features():
glyphs = '.notdef space A B C a b c'.split()
features = """
lookup GSUB_EXT useExtension {
sub a by b;
} GSUB_EXT;
lookup GPOS_EXT useExtension {
pos a b -10;
} GPOS_EXT;
feature sub1 {
sub A by a;
sub A B by b;
sub A B C by c;
sub [A B] C by c;
sub [A B] C [A B] by c;
sub A by A B;
sub A' C by A B;
sub a' by b;
sub a' b by c;
sub a from [A B C];
rsub a by b;
rsub a' by b;
rsub a b' by c;
rsub a b' c by A;
rsub [a b] c' by A;
rsub [a b] c' [a b] by B;
lookup GSUB_EXT;
} sub1;
feature pos1 {
pos A 20;
pos A B -50;
pos A B' 10 C;
lookup GPOS_EXT;
} pos1;
"""
font = TTFont()
font.setGlyphOrder(glyphs)
addOpenTypeFeaturesFromString(font, features)
assert maxCtxFont(font) == 3
def makeTTFont():
glyphs = (
".notdef space slash fraction "
"zero one two three four five six seven eight nine "
"zero.oldstyle one.oldstyle two.oldstyle three.oldstyle "
"four.oldstyle five.oldstyle six.oldstyle seven.oldstyle "
"eight.oldstyle nine.oldstyle onehalf "
"A B C D E F G H I J K L M N O P Q R S T U V W X Y Z "
"a b c d e f g h i j k l m n o p q r s t u v w x y z "
"A.sc B.sc C.sc D.sc E.sc F.sc G.sc H.sc I.sc J.sc K.sc L.sc M.sc "
"N.sc O.sc P.sc Q.sc R.sc S.sc T.sc U.sc V.sc W.sc X.sc Y.sc Z.sc "
"A.alt1 A.alt2 A.alt3 B.alt1 B.alt2 B.alt3 C.alt1 C.alt2 C.alt3 "
"d.alt n.end s.end "
"f_l c_h c_k c_s c_t f_f f_f_i f_f_l f_i o_f_f_i s_t "
"grave acute dieresis macron circumflex cedilla umlaut ogonek caron "
"damma hamza sukun kasratan lam_meem_jeem "
).split()
font = TTFont()
font.setGlyphOrder(glyphs)
return font
def _ensure_groups_grouped_in_glyph_order(
color_glyphs: MutableMapping[str, ColorGlyph],
color_glyph_order: Sequence[str],
ttfont: ttLib.TTFont,
reuse_groups: Tuple[Tuple[str, ...]],
):
# svg requires glyphs in same doc have sequential gids; reshuffle to make this true.
# Changing the order of glyphs in a TTFont requires that all tables that use
# glyph indexes have been fully decompiled (loaded with lazy=False).
# Cf. https://github.com/fonttools/fonttools/issues/2060
_ensure_ttfont_fully_decompiled(ttfont)
# The glyph names in the TTFont may have been dropped (post table 3.0), so the
# names we see after decompiling the TTFont are made up and likely different
# from the input color glyph names. We only want to reorder the glyphs while
# keeping the existing names, we can't change order and rename at the same time
# or else tables that contain mappings keyed by glyph name would blow up.
# Thus, we need to match the old and current names by their position in the
# font's current glyph order: i.e. we assume all color glyphs are placed at the
# END of the glyph order.
current_glyph_order = ttfont.getGlyphOrder()
current_color_glyph_names = current_glyph_order[-len(color_glyphs):]
assert len(color_glyph_order) == len(current_color_glyph_names)
rename_map = {
color_glyph_order[i]: current_color_glyph_names[i]
for i in range(len(color_glyph_order))
}
glyph_order = current_glyph_order[:-len(color_glyphs)]
gid = len(glyph_order)
for group in reuse_groups:
for glyph_name in group:
color_glyphs[glyph_name] = color_glyphs[glyph_name]._replace(
glyph_id=gid)
gid += 1
glyph_order.extend(rename_map[g] for g in group)
ttfont.setGlyphOrder(glyph_order)
class OutlineOTFCompiler(object):
"""
This object will create a bare-bones OTF-CFF containing
outline data and not much else. The only external
method is :meth:`ufo2fdk.tools.outlineOTF.compile`.
When creating this object, you must provide a *font*
object and a *path* indicating where the OTF should
be saved. Optionally, you can provide a *glyphOrder*
list of glyph names indicating the order of the glyphs
in the font.
"""
def __init__(self, font, path, glyphOrder=None):
self.ufo = font
self.path = path
self.log = []
# make any missing glyphs and store them locally
missingRequiredGlyphs = self.makeMissingRequiredGlyphs()
# make a dict of all glyphs
self.allGlyphs = {}
for glyph in font:
self.allGlyphs[glyph.name] = glyph
self.allGlyphs.update(missingRequiredGlyphs)
# store the glyph order
if glyphOrder is None:
glyphOrder = sorted(self.allGlyphs.keys())
self.glyphOrder = self.makeOfficialGlyphOrder(glyphOrder)
# make a reusable bounding box
self.fontBoundingBox = tuple([_roundInt(i) for i in self.makeFontBoundingBox()])
# make a reusable character mapping
self.unicodeToGlyphNameMapping = self.makeUnicodeToGlyphNameMapping()
# -----------
# Main Method
# -----------
def compile(self):
"""
Compile the OTF.
"""
self.otf = TTFont(sfntVersion="OTTO")
# populate basic tables
self.setupTable_head()
self.setupTable_hhea()
self.setupTable_hmtx()
self.setupTable_name()
self.setupTable_maxp()
self.setupTable_cmap()
self.setupTable_OS2()
self.setupTable_post()
self.setupTable_CFF()
self.setupOtherTables()
# write the file
self.otf.save(self.path)
# discard the object
self.otf.close()
del self.otf
# -----
# Tools
# -----
def makeFontBoundingBox(self):
"""
Make a bounding box for the font.
**This should not be called externally.** Subclasses
may override this method to handle the bounds creation
in a different way if desired.
"""
return getFontBounds(self.ufo)
def makeUnicodeToGlyphNameMapping(self):
"""
Make a ``unicode : glyph name`` mapping for the font.
**This should not be called externally.** Subclasses
may override this method to handle the mapping creation
in a different way if desired.
"""
mapping = {}
for glyphName, glyph in self.allGlyphs.items():
unicodes = glyph.unicodes
for uni in unicodes:
mapping[uni] = glyphName
return mapping
def makeMissingRequiredGlyphs(self):
"""
Add space and .notdef to the font if they are not present.
**This should not be called externally.** Subclasses
may override this method to handle the glyph creation
in a different way if desired.
"""
glyphs = {}
font = self.ufo
unitsPerEm = _roundInt(getAttrWithFallback(font.info, "unitsPerEm"))
ascender = _roundInt(getAttrWithFallback(font.info, "ascender"))
descender = _roundInt(getAttrWithFallback(font.info, "descender"))
defaultWidth = _roundInt(unitsPerEm * 0.5)
if ".notdef" not in self.ufo:
glyphs[".notdef"] = StubGlyph(name=".notdef", width=defaultWidth, unitsPerEm=unitsPerEm, ascender=ascender, descender=descender)
if "space" not in self.ufo:
glyphs["space"] = StubGlyph(name="space", width=defaultWidth, unitsPerEm=unitsPerEm, ascender=ascender, descender=descender, unicodes=[32])
return glyphs
def makeOfficialGlyphOrder(self, glyphOrder):
"""
Make a the final glyph order.
**This should not be called externally.** Subclasses
may override this method to handle the order creation
in a different way if desired.
"""
allGlyphs = self.allGlyphs
orderedGlyphs = [".notdef", "space"]
for glyphName in glyphOrder:
if glyphName in [".notdef", "space"]:
continue
orderedGlyphs.append(glyphName)
for glyphName in sorted(allGlyphs.keys()):
if glyphName not in orderedGlyphs:
orderedGlyphs.append(glyphName)
return orderedGlyphs
def getCharStringForGlyph(self, glyph, private, globalSubrs):
"""
Get a Type2CharString for the *glyph*
**This should not be called externally.** Subclasses
may override this method to handle the charstring creation
in a different way if desired.
"""
width = glyph.width
# subtract the nominal width
postscriptNominalWidthX = getAttrWithFallback(self.ufo.info, "postscriptNominalWidthX")
if postscriptNominalWidthX:
width = width - postscriptNominalWidthX
# round
width = _roundInt(width)
pen = T2CharStringPen(width, self.allGlyphs)
glyph.draw(pen)
charString = pen.getCharString(private, globalSubrs)
return charString
# --------------
# Table Builders
# --------------
def setupTable_head(self):
"""
Make the head table.
**This should not be called externally.** Subclasses
may override or supplement this method to handle the
table creation in a different way if desired.
"""
self.otf["head"] = head = newTable("head")
font = self.ufo
head.checkSumAdjustment = 0
head.tableVersion = 1.0
versionMajor = getAttrWithFallback(font.info, "versionMajor")
versionMinor = getAttrWithFallback(font.info, "versionMinor") * .001
head.fontRevision = versionMajor + versionMinor
head.magicNumber = 0x5F0F3CF5
# upm
head.unitsPerEm = int(round(getAttrWithFallback(font.info, "unitsPerEm")))
# times
head.created = dateStringToTimeValue(getAttrWithFallback(font.info, "openTypeHeadCreated")) - mac_epoch_diff
head.modified = dateStringToTimeValue(dateStringForNow()) - mac_epoch_diff
# bounding box
xMin, yMin, xMax, yMax = self.fontBoundingBox
head.xMin = int(math.floor(xMin))
head.yMin = int(math.floor(yMin))
head.xMax = int(math.ceil(xMax))
head.yMax = int(math.ceil(yMax))
# style mapping
styleMapStyleName = getAttrWithFallback(font.info, "styleMapStyleName")
macStyle = []
if styleMapStyleName == "bold":
macStyle = [0]
elif styleMapStyleName == "bold italic":
macStyle = [0, 1]
elif styleMapStyleName == "italic":
macStyle = [1]
head.macStyle = intListToNum(macStyle, 0, 16)
# misc
head.flags = intListToNum(getAttrWithFallback(font.info, "openTypeHeadFlags"), 0, 16)
head.lowestRecPPEM = _roundInt(getAttrWithFallback(font.info, "openTypeHeadLowestRecPPEM"))
head.fontDirectionHint = 2
head.indexToLocFormat = 0
head.glyphDataFormat = 0
def setupTable_name(self):
"""
Make the name table.
**This should not be called externally.** Subclasses
may override or supplement this method to handle the
table creation in a different way if desired.
"""
self.otf["name"] = newTable("name")
def setupTable_maxp(self):
"""
Make the maxp table.
**This should not be called externally.** Subclasses
may override or supplement this method to handle the
table creation in a different way if desired.
"""
self.otf["maxp"] = maxp = newTable("maxp")
maxp.tableVersion = 0x00005000
def setupTable_cmap(self):
"""
Make the cmap table.
**This should not be called externally.** Subclasses
may override or supplement this method to handle the
table creation in a different way if desired.
"""
from fontTools.ttLib.tables._c_m_a_p import cmap_format_4
nonBMP = dict((k, v) for k, v in self.unicodeToGlyphNameMapping.items() if k > 65535)
if nonBMP:
mapping = dict((k, v) for k, v in self.unicodeToGlyphNameMapping.items() if k <= 65535)
else:
mapping = dict(self.unicodeToGlyphNameMapping)
# mac
cmap4_0_3 = cmap_format_4(4)
cmap4_0_3.platformID = 0
cmap4_0_3.platEncID = 3
cmap4_0_3.language = 0
cmap4_0_3.cmap = mapping
# windows
cmap4_3_1 = cmap_format_4(4)
cmap4_3_1.platformID = 3
cmap4_3_1.platEncID = 1
cmap4_3_1.language = 0
cmap4_3_1.cmap = mapping
# store
self.otf["cmap"] = cmap = newTable("cmap")
cmap.tableVersion = 0
cmap.tables = [cmap4_0_3, cmap4_3_1]
# If we have glyphs outside Unicode BMP, we must set another
# subtable that can hold longer codepoints for them.
if nonBMP:
from fontTools.ttLib.tables._c_m_a_p import cmap_format_12
nonBMP.update(mapping)
# mac
cmap12_0_4 = cmap_format_12(12)
cmap12_0_4.platformID = 0
cmap12_0_4.platEncID = 4
cmap12_0_4.language = 0
cmap12_0_4.cmap = nonBMP
# windows
cmap12_3_10 = cmap_format_12(12)
cmap12_3_10.platformID = 3
cmap12_3_10.platEncID = 10
cmap12_3_10.language = 0
cmap12_3_10.cmap = nonBMP
# update tables registry
cmap.tables = [cmap4_0_3, cmap4_3_1, cmap12_0_4, cmap12_3_10]
cmap.tables.sort()
def setupTable_OS2(self):
"""
Make the OS/2 table.
**This should not be called externally.** Subclasses
may override or supplement this method to handle the
table creation in a different way if desired.
"""
self.otf["OS/2"] = os2 = newTable("OS/2")
font = self.ufo
os2.version = 0x0004
# average glyph width
widths = [glyph.width for glyph in self.allGlyphs.values() if glyph.width > 0]
os2.xAvgCharWidth = _roundInt(sum(widths) / len(widths))
# weight and width classes
os2.usWeightClass = getAttrWithFallback(font.info, "openTypeOS2WeightClass")
os2.usWidthClass = getAttrWithFallback(font.info, "openTypeOS2WidthClass")
# embedding
os2.fsType = intListToNum(getAttrWithFallback(font.info, "openTypeOS2Type"), 0, 16)
# subscript
v = getAttrWithFallback(font.info, "openTypeOS2SubscriptXSize")
if v is None:
v = 0
os2.ySubscriptXSize = _roundInt(v)
v = getAttrWithFallback(font.info, "openTypeOS2SubscriptYSize")
if v is None:
v = 0
os2.ySubscriptYSize = _roundInt(v)
v = getAttrWithFallback(font.info, "openTypeOS2SubscriptXOffset")
if v is None:
v = 0
os2.ySubscriptXOffset = _roundInt(v)
v = getAttrWithFallback(font.info, "openTypeOS2SubscriptYOffset")
if v is None:
v = 0
os2.ySubscriptYOffset = _roundInt(v)
# superscript
v = getAttrWithFallback(font.info, "openTypeOS2SuperscriptXSize")
if v is None:
v = 0
os2.ySuperscriptXSize = _roundInt(v)
v = getAttrWithFallback(font.info, "openTypeOS2SuperscriptYSize")
if v is None:
v = 0
os2.ySuperscriptYSize = _roundInt(v)
v = getAttrWithFallback(font.info, "openTypeOS2SuperscriptXOffset")
if v is None:
v = 0
os2.ySuperscriptXOffset = _roundInt(v)
v = getAttrWithFallback(font.info, "openTypeOS2SuperscriptYOffset")
if v is None:
v = 0
os2.ySuperscriptYOffset = _roundInt(v)
# strikeout
v = getAttrWithFallback(font.info, "openTypeOS2StrikeoutSize")
if v is None:
v = 0
os2.yStrikeoutSize = _roundInt(v)
v = getAttrWithFallback(font.info, "openTypeOS2StrikeoutPosition")
if v is None:
v = 0
os2.yStrikeoutPosition = _roundInt(v)
# family class
os2.sFamilyClass = 0 # XXX not sure how to create the appropriate value
# panose
data = getAttrWithFallback(font.info, "openTypeOS2Panose")
panose = Panose()
panose.bFamilyType = data[0]
panose.bSerifStyle = data[1]
panose.bWeight = data[2]
panose.bProportion = data[3]
panose.bContrast = data[4]
panose.bStrokeVariation = data[5]
panose.bArmStyle = data[6]
panose.bLetterForm = data[7]
panose.bMidline = data[8]
panose.bXHeight = data[9]
os2.panose = panose
# Unicode ranges
uniRanges = getAttrWithFallback(font.info, "openTypeOS2UnicodeRanges")
os2.ulUnicodeRange1 = intListToNum(uniRanges, 0, 32)
os2.ulUnicodeRange2 = intListToNum(uniRanges, 32, 32)
os2.ulUnicodeRange3 = intListToNum(uniRanges, 64, 32)
os2.ulUnicodeRange4 = intListToNum(uniRanges, 96, 32)
# codepage ranges
codepageRanges = getAttrWithFallback(font.info, "openTypeOS2CodePageRanges")
os2.ulCodePageRange1 = intListToNum(codepageRanges, 0, 32)
os2.ulCodePageRange2 = intListToNum(codepageRanges, 32, 32)
# vendor id
os2.achVendID = _ignoreASCII(getAttrWithFallback(font.info, "openTypeOS2VendorID"))
# vertical metrics
os2.sxHeight = _roundInt(getAttrWithFallback(font.info, "xHeight"))
os2.sCapHeight = _roundInt(getAttrWithFallback(font.info, "capHeight"))
os2.sTypoAscender = _roundInt(getAttrWithFallback(font.info, "openTypeOS2TypoAscender"))
os2.sTypoDescender = _roundInt(getAttrWithFallback(font.info, "openTypeOS2TypoDescender"))
os2.sTypoLineGap = _roundInt(getAttrWithFallback(font.info, "openTypeOS2TypoLineGap"))
os2.usWinAscent = _roundInt(getAttrWithFallback(font.info, "openTypeOS2WinAscent"))
os2.usWinDescent = _roundInt(getAttrWithFallback(font.info, "openTypeOS2WinDescent"))
# style mapping
selection = list(getAttrWithFallback(font.info, "openTypeOS2Selection"))
styleMapStyleName = getAttrWithFallback(font.info, "styleMapStyleName")
if styleMapStyleName == "regular":
selection.append(6)
elif styleMapStyleName == "bold":
selection.append(5)
elif styleMapStyleName == "italic":
selection.append(0)
elif styleMapStyleName == "bold italic":
selection += [0, 5]
os2.fsSelection = intListToNum(selection, 0, 16)
# characetr indexes
unicodes = [i for i in self.unicodeToGlyphNameMapping.keys() if i is not None]
if unicodes:
minIndex = min(unicodes)
maxIndex = max(unicodes)
else:
# the font may have *no* unicode values
# (it really happens!) so there needs
# to be a fallback. use space for this.
minIndex = 0x0020
maxIndex = 0x0020
if maxIndex > 0xFFFF:
# the spec says that 0xFFFF should be used
# as the max if the max exceeds 0xFFFF
maxIndex = 0xFFFF
os2.fsFirstCharIndex = minIndex
os2.fsLastCharIndex = maxIndex
os2.usBreakChar = 32
os2.usDefaultChar = 0
# maximum contextual lookup length
os2.usMaxContex = 0
def setupTable_hmtx(self):
"""
Make the hmtx table.
**This should not be called externally.** Subclasses
may override or supplement this method to handle the
table creation in a different way if desired.
"""
self.otf["hmtx"] = hmtx = newTable("hmtx")
hmtx.metrics = {}
for glyphName, glyph in self.allGlyphs.items():
width = glyph.width
left = 0
if len(glyph) or len(glyph.components):
left = glyph.leftMargin
if left is None:
left = 0
hmtx[glyphName] = (_roundInt(width), _roundInt(left))
def setupTable_hhea(self):
"""
Make the hhea table.
**This should not be called externally.** Subclasses
may override or supplement this method to handle the
table creation in a different way if desired.
"""
self.otf["hhea"] = hhea = newTable("hhea")
font = self.ufo
hhea.tableVersion = 0x00010000
# vertical metrics
hhea.ascent = _roundInt(getAttrWithFallback(font.info, "openTypeHheaAscender"))
hhea.descent = _roundInt(getAttrWithFallback(font.info, "openTypeHheaDescender"))
hhea.lineGap = _roundInt(getAttrWithFallback(font.info, "openTypeHheaLineGap"))
# horizontal metrics
widths = []
lefts = []
rights = []
extents = []
for glyph in self.allGlyphs.values():
left = glyph.leftMargin
right = glyph.rightMargin
if left is None:
left = 0
if right is None:
right = 0
widths.append(glyph.width)
lefts.append(left)
rights.append(right)
bounds = glyph.bounds
if bounds is not None:
xMin, yMin, xMax, yMax = bounds
else:
xMin = 0
xMax = 0
extent = left + (xMax - xMin) # equation from spec for calculating xMaxExtent: Max(lsb + (xMax - xMin))
extents.append(extent)
hhea.advanceWidthMax = _roundInt(max(widths))
hhea.minLeftSideBearing = _roundInt(min(lefts))
hhea.minRightSideBearing = _roundInt(min(rights))
hhea.xMaxExtent = _roundInt(max(extents))
# misc
hhea.caretSlopeRise = getAttrWithFallback(font.info, "openTypeHheaCaretSlopeRise")
hhea.caretSlopeRun = getAttrWithFallback(font.info, "openTypeHheaCaretSlopeRun")
hhea.caretOffset = _roundInt(getAttrWithFallback(font.info, "openTypeHheaCaretOffset"))
hhea.reserved0 = 0
hhea.reserved1 = 0
hhea.reserved2 = 0
hhea.reserved3 = 0
hhea.metricDataFormat = 0
# glyph count
hhea.numberOfHMetrics = len(self.allGlyphs)
def setupTable_post(self):
"""
Make the post table.
**This should not be called externally.** Subclasses
may override or supplement this method to handle the
table creation in a different way if desired.
"""
self.otf["post"] = post = newTable("post")
font = self.ufo
post.formatType = 3.0
# italic angle
italicAngle = getAttrWithFallback(font.info, "italicAngle")
post.italicAngle = italicAngle
# underline
underlinePosition = getAttrWithFallback(font.info, "postscriptUnderlinePosition")
if underlinePosition is None:
underlinePosition = 0
post.underlinePosition = _roundInt(underlinePosition)
underlineThickness = getAttrWithFallback(font.info, "postscriptUnderlineThickness")
if underlineThickness is None:
underlineThickness = 0
post.underlineThickness = _roundInt(underlineThickness)
# determine if the font has a fixed width
post.isFixedPitch = getAttrWithFallback(font.info, "postscriptIsFixedPitch")
# misc
post.minMemType42 = 0
post.maxMemType42 = 0
post.minMemType1 = 0
post.maxMemType1 = 0
def setupTable_CFF(self):
"""
Make the CFF table.
**This should not be called externally.** Subclasses
may override or supplement this method to handle the
table creation in a different way if desired.
"""
self.otf["CFF "] = cff = newTable("CFF ")
cff = cff.cff
# set up the basics
cff.major = 1
cff.minor = 0
cff.hdrSize = 4
cff.offSize = 4
cff.fontNames = []
strings = IndexedStrings()
cff.strings = strings
private = PrivateDict(strings=strings)
private.rawDict.update(private.defaults)
globalSubrs = GlobalSubrsIndex(private=private)
topDict = TopDict(GlobalSubrs=globalSubrs, strings=strings)
topDict.Private = private
charStrings = topDict.CharStrings = CharStrings(file=None, charset=None,
globalSubrs=globalSubrs, private=private, fdSelect=None, fdArray=None)
charStrings.charStringsAreIndexed = True
topDict.charset = []
charStringsIndex = charStrings.charStringsIndex = SubrsIndex(private=private, globalSubrs=globalSubrs)
cff.topDictIndex = topDictIndex = TopDictIndex()
topDictIndex.append(topDict)
topDictIndex.strings = strings
cff.GlobalSubrs = globalSubrs
# populate naming data
info = self.ufo.info
psName = getAttrWithFallback(info, "postscriptFontName")
cff.fontNames.append(psName)
topDict = cff.topDictIndex[0]
topDict.version = "%d.%d" % (getAttrWithFallback(info, "versionMajor"), getAttrWithFallback(info, "versionMinor"))
trademark = getAttrWithFallback(info, "trademark")
if trademark:
trademark = normalizeStringForPostscript(trademark.replace(u"\u00A9", "Copyright"))
if trademark != self.ufo.info.trademark:
self.log.append("[Warning] The trademark was normalized for storage in the CFF table and consequently some characters were dropped: '%s'" % trademark)
if trademark is None:
trademark = ""
topDict.Notice = trademark
copyright = getAttrWithFallback(info, "copyright")
if copyright:
copyright = normalizeStringForPostscript(copyright.replace(u"\u00A9", "Copyright"))
if copyright != self.ufo.info.copyright:
self.log.append("[Warning] The copyright was normalized for storage in the CFF table and consequently some characters were dropped: '%s'" % copyright)
if copyright is None:
copyright = ""
topDict.Copyright = copyright
topDict.FullName = getAttrWithFallback(info, "postscriptFullName")
topDict.FamilyName = getAttrWithFallback(info, "openTypeNamePreferredFamilyName")
topDict.Weight = getAttrWithFallback(info, "postscriptWeightName")
topDict.FontName = getAttrWithFallback(info, "postscriptFontName")
# populate various numbers
topDict.isFixedPitch = getAttrWithFallback(info, "postscriptIsFixedPitch")
topDict.ItalicAngle = getAttrWithFallback(info, "italicAngle")
underlinePosition = getAttrWithFallback(info, "postscriptUnderlinePosition")
if underlinePosition is None:
underlinePosition = 0
topDict.UnderlinePosition = _roundInt(underlinePosition)
underlineThickness = getAttrWithFallback(info, "postscriptUnderlineThickness")
if underlineThickness is None:
underlineThickness = 0
topDict.UnderlineThickness = _roundInt(underlineThickness)
# populate font matrix
unitsPerEm = _roundInt(getAttrWithFallback(info, "unitsPerEm"))
topDict.FontMatrix = [1.0 / unitsPerEm, 0, 0, 1.0 / unitsPerEm, 0, 0]
# populate the width values
defaultWidthX = _roundInt(getAttrWithFallback(info, "postscriptDefaultWidthX"))
if defaultWidthX:
private.rawDict["defaultWidthX"] = defaultWidthX
nominalWidthX = _roundInt(getAttrWithFallback(info, "postscriptNominalWidthX"))
if nominalWidthX:
private.rawDict["nominalWidthX"] = nominalWidthX
# populate hint data
blueFuzz = _roundInt(getAttrWithFallback(info, "postscriptBlueFuzz"))
blueShift = _roundInt(getAttrWithFallback(info, "postscriptBlueShift"))
blueScale = getAttrWithFallback(info, "postscriptBlueScale")
forceBold = getAttrWithFallback(info, "postscriptForceBold")
blueValues = getAttrWithFallback(info, "postscriptBlueValues")
if isinstance(blueValues, list):
blueValues = [_roundInt(i) for i in blueValues]
otherBlues = getAttrWithFallback(info, "postscriptOtherBlues")
if isinstance(otherBlues, list):
otherBlues = [_roundInt(i) for i in otherBlues]
familyBlues = getAttrWithFallback(info, "postscriptFamilyBlues")
if isinstance(familyBlues, list):
familyBlues = [_roundInt(i) for i in familyBlues]
familyOtherBlues = getAttrWithFallback(info, "postscriptFamilyOtherBlues")
if isinstance(familyOtherBlues, list):
familyOtherBlues = [_roundInt(i) for i in familyOtherBlues]
stemSnapH = getAttrWithFallback(info, "postscriptStemSnapH")
if isinstance(stemSnapH, list):
stemSnapH = [_roundInt(i) for i in stemSnapH]
stemSnapV = getAttrWithFallback(info, "postscriptStemSnapV")
if isinstance(stemSnapV, list):
stemSnapV = [_roundInt(i) for i in stemSnapV]
# only write the blues data if some blues are defined.
if (blueValues or otherBlues):
private.rawDict["BlueFuzz"] = blueFuzz
private.rawDict["BlueShift"] = blueShift
private.rawDict["BlueScale"] = blueScale
private.rawDict["ForceBold"] = forceBold
private.rawDict["BlueValues"] = blueValues
private.rawDict["OtherBlues"] = otherBlues
private.rawDict["FamilyBlues"] = familyBlues
private.rawDict["FamilyOtherBlues"] = familyOtherBlues
# only write the stems if both are defined.
if (stemSnapH and stemSnapV):
private.rawDict["StemSnapH"] = stemSnapH
private.rawDict["StdHW"] = stemSnapH[0]
private.rawDict["StemSnapV"] = stemSnapV
private.rawDict["StdVW"] = stemSnapV[0]
# populate glyphs
for glyphName in self.glyphOrder:
glyph = self.allGlyphs[glyphName]
charString = self.getCharStringForGlyph(glyph, private, globalSubrs)
# add to the font
exists = glyphName in charStrings
if exists:
# XXX a glyph already has this name. should we choke?
glyphID = charStrings.charStrings[glyphName]
charStringsIndex.items[glyphID] = charString
else:
charStringsIndex.append(charString)
glyphID = len(topDict.charset)
charStrings.charStrings[glyphName] = glyphID
topDict.charset.append(glyphName)
topDict.FontBBox = self.fontBoundingBox
# write the glyph order
self.otf.setGlyphOrder(self.glyphOrder)
def setupOtherTables(self):
"""
Make the other tables. The default implementation does nothing.
**This should not be called externally.** Subclasses
may override this method to add other tables to the
font if desired.
"""
pass
def make_font(feature_source, fea_type='fea'):
"""Return font with GSUB compiled from given source.
Adds a bunch of filler tables so the font can be saved if needed, for
debugging purposes.
"""
# copied from fontTools' feaLib/builder_test.
glyphs = """
.notdef space slash fraction semicolon period comma ampersand
quotedblleft quotedblright quoteleft quoteright
zero one two three four five six seven eight nine
zero.oldstyle one.oldstyle two.oldstyle three.oldstyle
four.oldstyle five.oldstyle six.oldstyle seven.oldstyle
eight.oldstyle nine.oldstyle onequarter onehalf threequarters
onesuperior twosuperior threesuperior ordfeminine ordmasculine
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
a b c d e f g h i j k l m n o p q r s t u v w x y z
A.sc B.sc C.sc D.sc E.sc F.sc G.sc H.sc I.sc J.sc K.sc L.sc M.sc
N.sc O.sc P.sc Q.sc R.sc S.sc T.sc U.sc V.sc W.sc X.sc Y.sc Z.sc
A.alt1 A.alt2 A.alt3 B.alt1 B.alt2 B.alt3 C.alt1 C.alt2 C.alt3
a.alt1 a.alt2 a.alt3 a.end b.alt c.mid d.alt d.mid
e.begin e.mid e.end m.begin n.end s.end z.end
Eng Eng.alt1 Eng.alt2 Eng.alt3
A.swash B.swash C.swash D.swash E.swash F.swash G.swash H.swash
I.swash J.swash K.swash L.swash M.swash N.swash O.swash P.swash
Q.swash R.swash S.swash T.swash U.swash V.swash W.swash X.swash
Y.swash Z.swash
f_l c_h c_k c_s c_t f_f f_f_i f_f_l f_i o_f_f_i s_t f_i.begin
a_n_d T_h T_h.swash germandbls ydieresis yacute breve
grave acute dieresis macron circumflex cedilla umlaut ogonek caron
damma hamza sukun kasratan lam_meem_jeem noon.final noon.initial
by feature lookup sub table
""".split()
font = TTFont()
font.setGlyphOrder(glyphs)
glyph_order = font.getGlyphOrder()
font['cmap'] = cmap = newTable('cmap')
table = cmap_format_4(4)
table.platformID = 3
table.platEncID = 1
table.language = 0
table.cmap = {AGL2UV[n]: n for n in glyph_order if n in AGL2UV}
cmap.tableVersion = 0
cmap.tables = [table]
font['glyf'] = glyf = newTable('glyf')
glyf.glyphs = {}
glyf.glyphOrder = glyph_order
for name in glyph_order:
pen = TTGlyphPen(None)
glyf[name] = pen.glyph()
font['head'] = head = newTable('head')
head.tableVersion = 1.0
head.fontRevision = 1.0
head.flags = head.checkSumAdjustment = head.magicNumber =\
head.created = head.modified = head.macStyle = head.lowestRecPPEM =\
head.fontDirectionHint = head.indexToLocFormat =\
head.glyphDataFormat =\
head.xMin = head.xMax = head.yMin = head.yMax = 0
head.unitsPerEm = 1000
font['hhea'] = hhea = newTable('hhea')
hhea.tableVersion = 0x00010000
hhea.ascent = hhea.descent = hhea.lineGap =\
hhea.caretSlopeRise = hhea.caretSlopeRun = hhea.caretOffset =\
hhea.reserved0 = hhea.reserved1 = hhea.reserved2 = hhea.reserved3 =\
hhea.metricDataFormat = hhea.advanceWidthMax = hhea.xMaxExtent =\
hhea.minLeftSideBearing = hhea.minRightSideBearing =\
hhea.numberOfHMetrics = 0
font['hmtx'] = hmtx = newTable('hmtx')
hmtx.metrics = {}
for name in glyph_order:
hmtx[name] = (600, 50)
font['loca'] = newTable('loca')
font['maxp'] = maxp = newTable('maxp')
maxp.tableVersion = 0x00005000
maxp.numGlyphs = 0
font['post'] = post = newTable('post')
post.formatType = 2.0
post.extraNames = []
post.mapping = {}
post.glyphOrder = glyph_order
post.italicAngle = post.underlinePosition = post.underlineThickness =\
post.isFixedPitch = post.minMemType42 = post.maxMemType42 =\
post.minMemType1 = post.maxMemType1 = 0
if fea_type == 'fea':
addOpenTypeFeaturesFromString(font, feature_source)
elif fea_type == 'mti':
font['GSUB'] = mtiLib.build(UnicodeIO(feature_source), font)
return font
class WOFF2Writer(SFNTWriter):
flavor = "woff2"
def __init__(self,
file,
numTables,
sfntVersion="\000\001\000\000",
flavor=None,
flavorData=None):
if not haveBrotli:
print(
'The WOFF2 encoder requires the Brotli Python extension, available at:\n'
'https://github.com/google/brotli',
file=sys.stderr)
raise ImportError("No module named brotli")
self.file = file
self.numTables = numTables
self.sfntVersion = Tag(sfntVersion)
self.flavorData = flavorData or WOFF2FlavorData()
self.directoryFormat = woff2DirectoryFormat
self.directorySize = woff2DirectorySize
self.DirectoryEntry = WOFF2DirectoryEntry
self.signature = Tag("wOF2")
self.nextTableOffset = 0
self.transformBuffer = BytesIO()
self.tables = OrderedDict()
# make empty TTFont to store data while normalising and transforming tables
self.ttFont = TTFont(recalcBBoxes=False, recalcTimestamp=False)
def __setitem__(self, tag, data):
"""Associate new entry named 'tag' with raw table data."""
if tag in self.tables:
raise TTLibError("cannot rewrite '%s' table" % tag)
if tag == 'DSIG':
# always drop DSIG table, since the encoding process can invalidate it
self.numTables -= 1
return
entry = self.DirectoryEntry()
entry.tag = Tag(tag)
entry.flags = getKnownTagIndex(entry.tag)
# WOFF2 table data are written to disk only on close(), after all tags
# have been specified
entry.data = data
self.tables[tag] = entry
def close(self):
""" All tags must have been specified. Now write the table data and directory.
"""
if len(self.tables) != self.numTables:
raise TTLibError("wrong number of tables; expected %d, found %d" %
(self.numTables, len(self.tables)))
if self.sfntVersion in ("\x00\x01\x00\x00", "true"):
isTrueType = True
elif self.sfntVersion == "OTTO":
isTrueType = False
else:
raise TTLibError(
"Not a TrueType or OpenType font (bad sfntVersion)")
# The WOFF2 spec no longer requires the glyph offsets to be 4-byte aligned.
# However, the reference WOFF2 implementation still fails to reconstruct
# 'unpadded' glyf tables, therefore we need to 'normalise' them.
# See:
# https://github.com/khaledhosny/ots/issues/60
# https://github.com/google/woff2/issues/15
if isTrueType:
self._normaliseGlyfAndLoca(padding=4)
self._setHeadTransformFlag()
# To pass the legacy OpenType Sanitiser currently included in browsers,
# we must sort the table directory and data alphabetically by tag.
# See:
# https://github.com/google/woff2/pull/3
# https://lists.w3.org/Archives/Public/public-webfonts-wg/2015Mar/0000.html
# TODO(user): remove to match spec once browsers are on newer OTS
self.tables = OrderedDict(sorted(self.tables.items()))
self.totalSfntSize = self._calcSFNTChecksumsLengthsAndOffsets()
fontData = self._transformTables()
compressedFont = brotli.compress(fontData, mode=brotli.MODE_FONT)
self.totalCompressedSize = len(compressedFont)
self.length = self._calcTotalSize()
self.majorVersion, self.minorVersion = self._getVersion()
self.reserved = 0
directory = self._packTableDirectory()
self.file.seek(0)
self.file.write(pad(directory + compressedFont, size=4))
self._writeFlavorData()
def _normaliseGlyfAndLoca(self, padding=4):
""" Recompile glyf and loca tables, aligning glyph offsets to multiples of
'padding' size. Update the head table's 'indexToLocFormat' accordingly while
compiling loca.
"""
if self.sfntVersion == "OTTO":
return
# make up glyph names required to decompile glyf table
self._decompileTable('maxp')
numGlyphs = self.ttFont['maxp'].numGlyphs
glyphOrder = ['.notdef'
] + ["glyph%.5d" % i for i in range(1, numGlyphs)]
self.ttFont.setGlyphOrder(glyphOrder)
for tag in ('head', 'loca', 'glyf'):
self._decompileTable(tag)
self.ttFont['glyf'].padding = padding
for tag in ('glyf', 'loca'):
self._compileTable(tag)
def _setHeadTransformFlag(self):
""" Set bit 11 of 'head' table flags to indicate that the font has undergone
a lossless modifying transform. Re-compile head table data."""
self._decompileTable('head')
self.ttFont['head'].flags |= (1 << 11)
self._compileTable('head')
def _decompileTable(self, tag):
""" Fetch table data, decompile it, and store it inside self.ttFont. """
tag = Tag(tag)
if tag not in self.tables:
raise TTLibError("missing required table: %s" % tag)
if self.ttFont.isLoaded(tag):
return
data = self.tables[tag].data
if tag == 'loca':
tableClass = WOFF2LocaTable
elif tag == 'glyf':
tableClass = WOFF2GlyfTable
else:
tableClass = getTableClass(tag)
table = tableClass(tag)
self.ttFont.tables[tag] = table
table.decompile(data, self.ttFont)
def _compileTable(self, tag):
""" Compile table and store it in its 'data' attribute. """
self.tables[tag].data = self.ttFont[tag].compile(self.ttFont)
def _calcSFNTChecksumsLengthsAndOffsets(self):
""" Compute the 'original' SFNT checksums, lengths and offsets for checksum
adjustment calculation. Return the total size of the uncompressed font.
"""
offset = sfntDirectorySize + sfntDirectoryEntrySize * len(self.tables)
for tag, entry in self.tables.items():
data = entry.data
entry.origOffset = offset
entry.origLength = len(data)
if tag == 'head':
entry.checkSum = calcChecksum(data[:8] + b'\0\0\0\0' +
data[12:])
else:
entry.checkSum = calcChecksum(data)
offset += (entry.origLength + 3) & ~3
return offset
def _transformTables(self):
"""Return transformed font data."""
for tag, entry in self.tables.items():
if tag in woff2TransformedTableTags:
data = self.transformTable(tag)
else:
data = entry.data
entry.offset = self.nextTableOffset
entry.saveData(self.transformBuffer, data)
self.nextTableOffset += entry.length
self.writeMasterChecksum()
fontData = self.transformBuffer.getvalue()
return fontData
def transformTable(self, tag):
"""Return transformed table data."""
if tag not in woff2TransformedTableTags:
raise TTLibError("Transform for table '%s' is unknown" % tag)
if tag == "loca":
data = b""
elif tag == "glyf":
for tag in ('maxp', 'head', 'loca', 'glyf'):
self._decompileTable(tag)
glyfTable = self.ttFont['glyf']
data = glyfTable.transform(self.ttFont)
else:
raise NotImplementedError
return data
def _calcMasterChecksum(self):
"""Calculate checkSumAdjustment."""
tags = list(self.tables.keys())
checksums = []
for i in range(len(tags)):
checksums.append(self.tables[tags[i]].checkSum)
# Create a SFNT directory for checksum calculation purposes
self.searchRange, self.entrySelector, self.rangeShift = getSearchRange(
self.numTables, 16)
directory = sstruct.pack(sfntDirectoryFormat, self)
tables = sorted(self.tables.items())
for tag, entry in tables:
sfntEntry = SFNTDirectoryEntry()
sfntEntry.tag = entry.tag
sfntEntry.checkSum = entry.checkSum
sfntEntry.offset = entry.origOffset
sfntEntry.length = entry.origLength
directory = directory + sfntEntry.toString()
directory_end = sfntDirectorySize + len(
self.tables) * sfntDirectoryEntrySize
assert directory_end == len(directory)
checksums.append(calcChecksum(directory))
checksum = sum(checksums) & 0xffffffff
# BiboAfba!
checksumadjustment = (0xB1B0AFBA - checksum) & 0xffffffff
return checksumadjustment
def writeMasterChecksum(self):
"""Write checkSumAdjustment to the transformBuffer."""
checksumadjustment = self._calcMasterChecksum()
self.transformBuffer.seek(self.tables['head'].offset + 8)
self.transformBuffer.write(struct.pack(">L", checksumadjustment))
def _calcTotalSize(self):
"""Calculate total size of WOFF2 font, including any meta- and/or private data."""
offset = self.directorySize
for entry in self.tables.values():
offset += len(entry.toString())
offset += self.totalCompressedSize
offset = (offset + 3) & ~3
offset = self._calcFlavorDataOffsetsAndSize(offset)
return offset
def _calcFlavorDataOffsetsAndSize(self, start):
"""Calculate offsets and lengths for any meta- and/or private data."""
offset = start
data = self.flavorData
if data.metaData:
self.metaOrigLength = len(data.metaData)
self.metaOffset = offset
self.compressedMetaData = brotli.compress(data.metaData,
mode=brotli.MODE_TEXT)
self.metaLength = len(self.compressedMetaData)
offset += self.metaLength
else:
self.metaOffset = self.metaLength = self.metaOrigLength = 0
self.compressedMetaData = b""
if data.privData:
# make sure private data is padded to 4-byte boundary
offset = (offset + 3) & ~3
self.privOffset = offset
self.privLength = len(data.privData)
offset += self.privLength
else:
self.privOffset = self.privLength = 0
return offset
def _getVersion(self):
"""Return the WOFF2 font's (majorVersion, minorVersion) tuple."""
data = self.flavorData
if data.majorVersion is not None and data.minorVersion is not None:
return data.majorVersion, data.minorVersion
else:
# if None, return 'fontRevision' from 'head' table
if 'head' in self.tables:
return struct.unpack(">HH", self.tables['head'].data[4:8])
else:
return 0, 0
def _packTableDirectory(self):
"""Return WOFF2 table directory data."""
directory = sstruct.pack(self.directoryFormat, self)
for entry in self.tables.values():
directory = directory + entry.toString()
return directory
def _writeFlavorData(self):
"""Write metadata and/or private data using appropiate padding."""
compressedMetaData = self.compressedMetaData
privData = self.flavorData.privData
if compressedMetaData and privData:
compressedMetaData = pad(compressedMetaData, size=4)
if compressedMetaData:
self.file.seek(self.metaOffset)
assert self.file.tell() == self.metaOffset
self.file.write(compressedMetaData)
if privData:
self.file.seek(self.privOffset)
assert self.file.tell() == self.privOffset
self.file.write(privData)
def reordersTables(self):
return True
class OTFPostProcessor(object):
"""Does some post-processing operations on a compiled OpenType font, using
info from the source UFO where necessary.
"""
def __init__(self, otf, ufo):
self.ufo = ufo
stream = BytesIO()
otf.save(stream)
stream.seek(0)
self.otf = TTFont(stream)
self._postscriptNames = ufo.lib.get('public.postscriptNames')
def process(self, useProductionNames=True, optimizeCff=True):
if useProductionNames:
self._rename_glyphs_from_ufo()
if optimizeCff and 'CFF ' in self.otf:
from compreffor import compress
compress(self.otf)
return self.otf
def _rename_glyphs_from_ufo(self):
"""Rename glyphs using ufo.lib.public.postscriptNames in UFO."""
rename_map = {g.name: self._build_production_name(g) for g in self.ufo}
# .notdef may not be present in the original font
rename_map[".notdef"] = ".notdef"
rename = lambda names: [rename_map[n] for n in names]
self.otf.setGlyphOrder(rename(self.otf.getGlyphOrder()))
if 'CFF ' in self.otf:
cff = self.otf['CFF '].cff.topDictIndex[0]
char_strings = cff.CharStrings.charStrings
cff.CharStrings.charStrings = {
rename_map.get(n, n): v
for n, v in char_strings.items()
}
cff.charset = rename(cff.charset)
def _build_production_name(self, glyph):
"""Build a production name for a single glyph."""
# use PostScript names from UFO lib if available
if self._postscriptNames:
production_name = self._postscriptNames.get(glyph.name)
return production_name if production_name else glyph.name
# use name derived from unicode value
unicode_val = glyph.unicode
if glyph.unicode is not None:
return '%s%04X' % ('u' if unicode_val > 0xffff else 'uni',
unicode_val)
# use production name + last (non-script) suffix if possible
parts = glyph.name.rsplit('.', 1)
if len(parts) == 2 and parts[0] in self.ufo:
return '%s.%s' % (self._build_production_name(
self.ufo[parts[0]]), parts[1])
# use ligature name, making sure to look up components with suffixes
parts = glyph.name.split('.', 1)
if len(parts) == 2:
liga_parts = ['%s.%s' % (n, parts[1]) for n in parts[0].split('_')]
else:
liga_parts = glyph.name.split('_')
if len(liga_parts) > 1 and all(n in self.ufo for n in liga_parts):
unicode_vals = [self.ufo[n].unicode for n in liga_parts]
if all(v and v <= 0xffff for v in unicode_vals):
return 'uni' + ''.join('%04X' % v for v in unicode_vals)
return '_'.join(
self._build_production_name(self.ufo[n]) for n in liga_parts)
return glyph.name
def font():
font = TTFont()
font.setGlyphOrder([".notdef"] + ["glyph%05d" % i for i in range(1, 30)])
return font
class OutlineOTFCompiler(object):
"""
This object will create a bare-bones OTF-CFF containing
outline data and not much else. The only external
method is :meth:`ufo2fdk.tools.outlineOTF.compile`.
When creating this object, you must provide a *font*
object and a *path* indicating where the OTF should
be saved. Optionally, you can provide a *glyphOrder*
list of glyph names indicating the order of the glyphs
in the font.
"""
def __init__(self, font, path, glyphOrder=None):
self.ufo = font
self.path = path
self.log = []
# make any missing glyphs and store them locally
missingRequiredGlyphs = self.makeMissingRequiredGlyphs()
# make a dict of all glyphs
self.allGlyphs = {}
for glyph in font:
self.allGlyphs[glyph.name] = glyph
self.allGlyphs.update(missingRequiredGlyphs)
# store the glyph order
if glyphOrder is None:
glyphOrder = sorted(self.allGlyphs.keys())
self.glyphOrder = self.makeOfficialGlyphOrder(glyphOrder)
# make a reusable bounding box
self.fontBoundingBox = tuple(
[_roundInt(i) for i in self.makeFontBoundingBox()])
# make a reusable character mapping
self.unicodeToGlyphNameMapping = self.makeUnicodeToGlyphNameMapping()
# -----------
# Main Method
# -----------
def compile(self):
"""
Compile the OTF.
"""
self.otf = TTFont(sfntVersion="OTTO")
# populate basic tables
self.setupTable_head()
self.setupTable_hhea()
self.setupTable_hmtx()
self.setupTable_name()
self.setupTable_maxp()
self.setupTable_cmap()
self.setupTable_OS2()
self.setupTable_post()
self.setupTable_CFF()
self.setupOtherTables()
# write the file
self.otf.save(self.path)
# discard the object
self.otf.close()
del self.otf
# -----
# Tools
# -----
def makeFontBoundingBox(self):
"""
Make a bounding box for the font.
**This should not be called externally.** Subclasses
may override this method to handle the bounds creation
in a different way if desired.
"""
return getFontBounds(self.ufo)
def makeUnicodeToGlyphNameMapping(self):
"""
Make a ``unicode : glyph name`` mapping for the font.
**This should not be called externally.** Subclasses
may override this method to handle the mapping creation
in a different way if desired.
"""
mapping = {}
for glyphName, glyph in self.allGlyphs.items():
unicodes = glyph.unicodes
for uni in unicodes:
mapping[uni] = glyphName
return mapping
def makeMissingRequiredGlyphs(self):
"""
Add space and .notdef to the font if they are not present.
**This should not be called externally.** Subclasses
may override this method to handle the glyph creation
in a different way if desired.
"""
glyphs = {}
font = self.ufo
unitsPerEm = _roundInt(getAttrWithFallback(font.info, "unitsPerEm"))
ascender = _roundInt(getAttrWithFallback(font.info, "ascender"))
descender = _roundInt(getAttrWithFallback(font.info, "descender"))
defaultWidth = _roundInt(unitsPerEm * 0.5)
if ".notdef" not in self.ufo:
glyphs[".notdef"] = StubGlyph(name=".notdef",
width=defaultWidth,
unitsPerEm=unitsPerEm,
ascender=ascender,
descender=descender)
if "space" not in self.ufo:
glyphs["space"] = StubGlyph(name="space",
width=defaultWidth,
unitsPerEm=unitsPerEm,
ascender=ascender,
descender=descender,
unicodes=[32])
return glyphs
def makeOfficialGlyphOrder(self, glyphOrder):
"""
Make a the final glyph order.
**This should not be called externally.** Subclasses
may override this method to handle the order creation
in a different way if desired.
"""
allGlyphs = self.allGlyphs
orderedGlyphs = [".notdef", "space"]
for glyphName in glyphOrder:
if glyphName in [".notdef", "space"]:
continue
orderedGlyphs.append(glyphName)
for glyphName in sorted(self.allGlyphs.keys()):
if glyphName not in orderedGlyphs:
orderedGlyphs.append(glyphName)
return orderedGlyphs
def getCharStringForGlyph(self, glyph, private, globalSubrs):
"""
Get a Type2CharString for the *glyph*
**This should not be called externally.** Subclasses
may override this method to handle the charstring creation
in a different way if desired.
"""
width = glyph.width
# subtract the nominal width
postscriptNominalWidthX = getAttrWithFallback(
self.ufo.info, "postscriptNominalWidthX")
if postscriptNominalWidthX:
width = width - postscriptNominalWidthX
# round
width = _roundInt(width)
pen = T2CharStringPen(width, self.allGlyphs)
glyph.draw(pen)
charString = pen.getCharString(private, globalSubrs)
return charString
# --------------
# Table Builders
# --------------
def setupTable_head(self):
"""
Make the head table.
**This should not be called externally.** Subclasses
may override or supplement this method to handle the
table creation in a different way if desired.
"""
self.otf["head"] = head = newTable("head")
font = self.ufo
head.checkSumAdjustment = 0
head.tableVersion = 1.0
versionMajor = getAttrWithFallback(font.info, "versionMajor")
versionMinor = getAttrWithFallback(font.info, "versionMinor") * .001
head.fontRevision = versionMajor + versionMinor
head.magicNumber = 0x5F0F3CF5
# upm
head.unitsPerEm = getAttrWithFallback(font.info, "unitsPerEm")
# times
head.created = dateStringToTimeValue(
getAttrWithFallback(font.info,
"openTypeHeadCreated")) - mac_epoch_diff
head.modified = dateStringToTimeValue(
dateStringForNow()) - mac_epoch_diff
# bounding box
xMin, yMin, xMax, yMax = self.fontBoundingBox
head.xMin = xMin
head.yMin = yMin
head.xMax = xMax
head.yMax = yMax
# style mapping
styleMapStyleName = getAttrWithFallback(font.info, "styleMapStyleName")
macStyle = []
if styleMapStyleName == "bold":
macStyle = [0]
elif styleMapStyleName == "bold italic":
macStyle = [0, 1]
elif styleMapStyleName == "italic":
macStyle = [1]
head.macStyle = intListToNum(macStyle, 0, 16)
# misc
head.flags = intListToNum(
getAttrWithFallback(font.info, "openTypeHeadFlags"), 0, 16)
head.lowestRecPPEM = _roundInt(
getAttrWithFallback(font.info, "openTypeHeadLowestRecPPEM"))
head.fontDirectionHint = 2
head.indexToLocFormat = 0
head.glyphDataFormat = 0
def setupTable_name(self):
"""
Make the name table.
**This should not be called externally.** Subclasses
may override or supplement this method to handle the
table creation in a different way if desired.
"""
self.otf["name"] = newTable("name")
def setupTable_maxp(self):
"""
Make the maxp table.
**This should not be called externally.** Subclasses
may override or supplement this method to handle the
table creation in a different way if desired.
"""
self.otf["maxp"] = maxp = newTable("maxp")
maxp.tableVersion = 0x00005000
def setupTable_cmap(self):
"""
Make the cmap table.
**This should not be called externally.** Subclasses
may override or supplement this method to handle the
table creation in a different way if desired.
"""
from fontTools.ttLib.tables._c_m_a_p import cmap_format_4
nonBMP = dict((k, v)
for k, v in self.unicodeToGlyphNameMapping.items()
if k > 65535)
if nonBMP:
mapping = dict((k, v)
for k, v in self.unicodeToGlyphNameMapping.items()
if k <= 65535)
else:
mapping = dict(self.unicodeToGlyphNameMapping)
# mac
cmap4_0_3 = cmap_format_4(4)
cmap4_0_3.platformID = 0
cmap4_0_3.platEncID = 3
cmap4_0_3.language = 0
cmap4_0_3.cmap = mapping
# windows
cmap4_3_1 = cmap_format_4(4)
cmap4_3_1.platformID = 3
cmap4_3_1.platEncID = 1
cmap4_3_1.language = 0
cmap4_3_1.cmap = mapping
# store
self.otf["cmap"] = cmap = newTable("cmap")
cmap.tableVersion = 0
cmap.tables = [cmap4_0_3, cmap4_3_1]
# If we have glyphs outside Unicode BMP, we must set another
# subtable that can hold longer codepoints for them.
if nonBMP:
from fontTools.ttLib.tables._c_m_a_p import cmap_format_12
nonBMP.update(mapping)
# mac
cmap12_0_4 = cmap_format_12(12)
cmap12_0_4.platformID = 0
cmap12_0_4.platEncID = 4
cmap12_0_4.language = 0
cmap12_0_4.cmap = nonBMP
# windows
cmap12_3_10 = cmap_format_12(12)
cmap12_3_10.platformID = 3
cmap12_3_10.platEncID = 10
cmap12_3_10.language = 0
cmap12_3_10.cmap = nonBMP
# update tables registry
cmap.tables = [cmap4_0_3, cmap4_3_1, cmap12_0_4, cmap12_3_10]
def setupTable_OS2(self):
"""
Make the OS/2 table.
**This should not be called externally.** Subclasses
may override or supplement this method to handle the
table creation in a different way if desired.
"""
self.otf["OS/2"] = os2 = newTable("OS/2")
font = self.ufo
os2.version = 0x0004
# average glyph width
widths = [
glyph.width for glyph in self.allGlyphs.values() if glyph.width > 0
]
os2.xAvgCharWidth = _roundInt(sum(widths) / len(widths))
# weight and width classes
os2.usWeightClass = getAttrWithFallback(font.info,
"openTypeOS2WeightClass")
os2.usWidthClass = getAttrWithFallback(font.info,
"openTypeOS2WidthClass")
# embedding
os2.fsType = intListToNum(
getAttrWithFallback(font.info, "openTypeOS2Type"), 0, 16)
# subscript
v = getAttrWithFallback(font.info, "openTypeOS2SubscriptXSize")
if v is None:
v = 0
os2.ySubscriptXSize = _roundInt(v)
v = getAttrWithFallback(font.info, "openTypeOS2SubscriptYSize")
if v is None:
v = 0
os2.ySubscriptYSize = _roundInt(v)
v = getAttrWithFallback(font.info, "openTypeOS2SubscriptXOffset")
if v is None:
v = 0
os2.ySubscriptXOffset = _roundInt(v)
v = getAttrWithFallback(font.info, "openTypeOS2SubscriptYOffset")
if v is None:
v = 0
os2.ySubscriptYOffset = _roundInt(v)
# superscript
v = getAttrWithFallback(font.info, "openTypeOS2SuperscriptXSize")
if v is None:
v = 0
os2.ySuperscriptXSize = _roundInt(v)
v = getAttrWithFallback(font.info, "openTypeOS2SuperscriptYSize")
if v is None:
v = 0
os2.ySuperscriptYSize = _roundInt(v)
v = getAttrWithFallback(font.info, "openTypeOS2SuperscriptXOffset")
if v is None:
v = 0
os2.ySuperscriptXOffset = _roundInt(v)
v = getAttrWithFallback(font.info, "openTypeOS2SuperscriptYOffset")
if v is None:
v = 0
os2.ySuperscriptYOffset = _roundInt(v)
# strikeout
v = getAttrWithFallback(font.info, "openTypeOS2StrikeoutSize")
if v is None:
v = 0
os2.yStrikeoutSize = _roundInt(v)
v = getAttrWithFallback(font.info, "openTypeOS2StrikeoutPosition")
if v is None:
v = 0
os2.yStrikeoutPosition = _roundInt(v)
# family class
os2.sFamilyClass = 0 # XXX not sure how to create the appropriate value
# panose
data = getAttrWithFallback(font.info, "openTypeOS2Panose")
panose = Panose()
panose.bFamilyType = data[0]
panose.bSerifStyle = data[1]
panose.bWeight = data[2]
panose.bProportion = data[3]
panose.bContrast = data[4]
panose.bStrokeVariation = data[5]
panose.bArmStyle = data[6]
panose.bLetterForm = data[7]
panose.bMidline = data[8]
panose.bXHeight = data[9]
os2.panose = panose
# Unicode ranges
uniRanges = getAttrWithFallback(font.info, "openTypeOS2UnicodeRanges")
os2.ulUnicodeRange1 = intListToNum(uniRanges, 0, 32)
os2.ulUnicodeRange2 = intListToNum(uniRanges, 32, 32)
os2.ulUnicodeRange3 = intListToNum(uniRanges, 64, 32)
os2.ulUnicodeRange4 = intListToNum(uniRanges, 96, 32)
# codepage ranges
codepageRanges = getAttrWithFallback(font.info,
"openTypeOS2CodePageRanges")
os2.ulCodePageRange1 = intListToNum(codepageRanges, 0, 32)
os2.ulCodePageRange2 = intListToNum(codepageRanges, 32, 32)
# vendor id
os2.achVendID = str(
getAttrWithFallback(font.info, "openTypeOS2VendorID").decode(
"ascii", "ignore"))
# vertical metrics
os2.sxHeight = _roundInt(getAttrWithFallback(font.info, "xHeight"))
os2.sCapHeight = _roundInt(getAttrWithFallback(font.info, "capHeight"))
os2.sTypoAscender = _roundInt(
getAttrWithFallback(font.info, "openTypeOS2TypoAscender"))
os2.sTypoDescender = _roundInt(
getAttrWithFallback(font.info, "openTypeOS2TypoDescender"))
os2.sTypoLineGap = _roundInt(
getAttrWithFallback(font.info, "openTypeOS2TypoLineGap"))
os2.usWinAscent = _roundInt(
getAttrWithFallback(font.info, "openTypeOS2WinAscent"))
os2.usWinDescent = _roundInt(
getAttrWithFallback(font.info, "openTypeOS2WinDescent"))
# style mapping
selection = list(getAttrWithFallback(font.info,
"openTypeOS2Selection"))
styleMapStyleName = getAttrWithFallback(font.info, "styleMapStyleName")
if styleMapStyleName == "regular":
selection.append(6)
elif styleMapStyleName == "bold":
selection.append(5)
elif styleMapStyleName == "italic":
selection.append(0)
elif styleMapStyleName == "bold italic":
selection += [0, 5]
os2.fsSelection = intListToNum(selection, 0, 16)
# characetr indexes
unicodes = [
i for i in self.unicodeToGlyphNameMapping.keys() if i is not None
]
if unicodes:
minIndex = min(unicodes)
maxIndex = max(unicodes)
else:
# the font may have *no* unicode values
# (it really happens!) so there needs
# to be a fallback. use space for this.
minIndex = 0x0020
maxIndex = 0x0020
if maxIndex > 0xFFFF:
# the spec says that 0xFFFF should be used
# as the max if the max exceeds 0xFFFF
maxIndex = 0xFFFF
os2.fsFirstCharIndex = minIndex
os2.fsLastCharIndex = maxIndex
os2.usBreakChar = 32
os2.usDefaultChar = 0
# maximum contextual lookup length
os2.usMaxContex = 0
def setupTable_hmtx(self):
"""
Make the hmtx table.
**This should not be called externally.** Subclasses
may override or supplement this method to handle the
table creation in a different way if desired.
"""
self.otf["hmtx"] = hmtx = newTable("hmtx")
hmtx.metrics = {}
for glyphName, glyph in self.allGlyphs.items():
width = glyph.width
left = 0
if len(glyph) or len(glyph.components):
left = glyph.leftMargin
if left is None:
left = 0
hmtx[glyphName] = (_roundInt(width), _roundInt(left))
def setupTable_hhea(self):
"""
Make the hhea table.
**This should not be called externally.** Subclasses
may override or supplement this method to handle the
table creation in a different way if desired.
"""
self.otf["hhea"] = hhea = newTable("hhea")
font = self.ufo
hhea.tableVersion = 1.0
# vertical metrics
hhea.ascent = _roundInt(
getAttrWithFallback(font.info, "openTypeHheaAscender"))
hhea.descent = _roundInt(
getAttrWithFallback(font.info, "openTypeHheaDescender"))
hhea.lineGap = _roundInt(
getAttrWithFallback(font.info, "openTypeHheaLineGap"))
# horizontal metrics
widths = []
lefts = []
rights = []
extents = []
for glyph in self.allGlyphs.values():
left = glyph.leftMargin
right = glyph.rightMargin
if left is None:
left = 0
if right is None:
right = 0
widths.append(glyph.width)
lefts.append(left)
rights.append(right)
# robofab
if hasattr(glyph, "box"):
bounds = glyph.box
# others
else:
bounds = glyph.bounds
if bounds is not None:
xMin, yMin, xMax, yMax = bounds
else:
xMin = 0
xMax = 0
extent = left + (
xMax - xMin
) # equation from spec for calculating xMaxExtent: Max(lsb + (xMax - xMin))
extents.append(extent)
hhea.advanceWidthMax = _roundInt(max(widths))
hhea.minLeftSideBearing = _roundInt(min(lefts))
hhea.minRightSideBearing = _roundInt(min(rights))
hhea.xMaxExtent = _roundInt(max(extents))
# misc
hhea.caretSlopeRise = getAttrWithFallback(
font.info, "openTypeHheaCaretSlopeRise")
hhea.caretSlopeRun = getAttrWithFallback(font.info,
"openTypeHheaCaretSlopeRun")
hhea.caretOffset = _roundInt(
getAttrWithFallback(font.info, "openTypeHheaCaretOffset"))
hhea.reserved0 = 0
hhea.reserved1 = 0
hhea.reserved2 = 0
hhea.reserved3 = 0
hhea.metricDataFormat = 0
# glyph count
hhea.numberOfHMetrics = len(self.allGlyphs)
def setupTable_post(self):
"""
Make the post table.
**This should not be called externally.** Subclasses
may override or supplement this method to handle the
table creation in a different way if desired.
"""
self.otf["post"] = post = newTable("post")
font = self.ufo
post.formatType = 3.0
# italic angle
italicAngle = getAttrWithFallback(font.info, "italicAngle")
post.italicAngle = italicAngle
# underline
underlinePosition = getAttrWithFallback(font.info,
"postscriptUnderlinePosition")
if underlinePosition is None:
underlinePosition = 0
post.underlinePosition = _roundInt(underlinePosition)
underlineThickness = getAttrWithFallback(
font.info, "postscriptUnderlineThickness")
if underlineThickness is None:
underlineThickness = 0
post.underlineThickness = _roundInt(underlineThickness)
# determine if the font has a fixed width
post.isFixedPitch = getAttrWithFallback(font.info,
"postscriptIsFixedPitch")
# misc
post.minMemType42 = 0
post.maxMemType42 = 0
post.minMemType1 = 0
post.maxMemType1 = 0
def setupTable_CFF(self):
"""
Make the CFF table.
**This should not be called externally.** Subclasses
may override or supplement this method to handle the
table creation in a different way if desired.
"""
self.otf["CFF "] = cff = newTable("CFF ")
cff = cff.cff
# set up the basics
cff.major = 1
cff.minor = 0
cff.hdrSize = 4
cff.offSize = 4
cff.fontNames = []
strings = IndexedStrings()
cff.strings = strings
private = PrivateDict(strings=strings)
private.rawDict.update(private.defaults)
globalSubrs = GlobalSubrsIndex(private=private)
topDict = TopDict(GlobalSubrs=globalSubrs, strings=strings)
topDict.Private = private
charStrings = topDict.CharStrings = CharStrings(
file=None,
charset=None,
globalSubrs=globalSubrs,
private=private,
fdSelect=None,
fdArray=None)
charStrings.charStringsAreIndexed = True
topDict.charset = []
charStringsIndex = charStrings.charStringsIndex = SubrsIndex(
private=private, globalSubrs=globalSubrs)
cff.topDictIndex = topDictIndex = TopDictIndex()
topDictIndex.append(topDict)
topDictIndex.strings = strings
cff.GlobalSubrs = globalSubrs
# populate naming data
info = self.ufo.info
psName = getAttrWithFallback(info, "postscriptFontName")
cff.fontNames.append(psName)
topDict = cff.topDictIndex[0]
topDict.version = "%d.%d" % (getAttrWithFallback(
info, "versionMajor"), getAttrWithFallback(info, "versionMinor"))
trademark = getAttrWithFallback(info, "trademark")
if trademark:
trademark = normalizeStringForPostscript(
trademark.replace(u"\u00A9", "Copyright"))
if trademark != self.ufo.info.trademark:
self.log.append(
"[Warning] The trademark was normalized for storage in the CFF table and consequently some characters were dropped: '%s'"
% trademark)
if trademark is None:
trademark = ""
topDict.Notice = trademark
copyright = getAttrWithFallback(info, "copyright")
if copyright:
copyright = normalizeStringForPostscript(
copyright.replace(u"\u00A9", "Copyright"))
if copyright != self.ufo.info.copyright:
self.log.append(
"[Warning] The copyright was normalized for storage in the CFF table and consequently some characters were dropped: '%s'"
% copyright)
if copyright is None:
copyright = ""
topDict.Copyright = copyright
topDict.FullName = getAttrWithFallback(info, "postscriptFullName")
topDict.FamilyName = getAttrWithFallback(
info, "openTypeNamePreferredFamilyName")
topDict.Weight = getAttrWithFallback(info, "postscriptWeightName")
topDict.FontName = getAttrWithFallback(info, "postscriptFontName")
# populate various numbers
topDict.isFixedPitch = getAttrWithFallback(info,
"postscriptIsFixedPitch")
topDict.ItalicAngle = getAttrWithFallback(info, "italicAngle")
underlinePosition = getAttrWithFallback(info,
"postscriptUnderlinePosition")
if underlinePosition is None:
underlinePosition = 0
topDict.UnderlinePosition = _roundInt(underlinePosition)
underlineThickness = getAttrWithFallback(
info, "postscriptUnderlineThickness")
if underlineThickness is None:
underlineThickness = 0
topDict.UnderlineThickness = _roundInt(underlineThickness)
# populate font matrix
unitsPerEm = _roundInt(getAttrWithFallback(info, "unitsPerEm"))
topDict.FontMatrix = [1.0 / unitsPerEm, 0, 0, 1.0 / unitsPerEm, 0, 0]
# populate the width values
defaultWidthX = _roundInt(
getAttrWithFallback(info, "postscriptDefaultWidthX"))
if defaultWidthX:
private.rawDict["defaultWidthX"] = defaultWidthX
nominalWidthX = _roundInt(
getAttrWithFallback(info, "postscriptNominalWidthX"))
if nominalWidthX:
private.rawDict["nominalWidthX"] = nominalWidthX
# populate hint data
blueFuzz = _roundInt(getAttrWithFallback(info, "postscriptBlueFuzz"))
blueShift = _roundInt(getAttrWithFallback(info, "postscriptBlueShift"))
blueScale = getAttrWithFallback(info, "postscriptBlueScale")
forceBold = getAttrWithFallback(info, "postscriptForceBold")
blueValues = getAttrWithFallback(info, "postscriptBlueValues")
if isinstance(blueValues, list):
blueValues = [_roundInt(i) for i in blueValues]
otherBlues = getAttrWithFallback(info, "postscriptOtherBlues")
if isinstance(otherBlues, list):
otherBlues = [_roundInt(i) for i in otherBlues]
familyBlues = getAttrWithFallback(info, "postscriptFamilyBlues")
if isinstance(familyBlues, list):
familyBlues = [_roundInt(i) for i in familyBlues]
familyOtherBlues = getAttrWithFallback(info,
"postscriptFamilyOtherBlues")
if isinstance(familyOtherBlues, list):
familyOtherBlues = [_roundInt(i) for i in familyOtherBlues]
stemSnapH = getAttrWithFallback(info, "postscriptStemSnapH")
if isinstance(stemSnapH, list):
stemSnapH = [_roundInt(i) for i in stemSnapH]
stemSnapV = getAttrWithFallback(info, "postscriptStemSnapV")
if isinstance(stemSnapV, list):
stemSnapV = [_roundInt(i) for i in stemSnapV]
# only write the blues data if some blues are defined.
if (blueValues or otherBlues):
private.rawDict["BlueFuzz"] = blueFuzz
private.rawDict["BlueShift"] = blueShift
private.rawDict["BlueScale"] = blueScale
private.rawDict["ForceBold"] = forceBold
private.rawDict["BlueValues"] = blueValues
private.rawDict["OtherBlues"] = otherBlues
private.rawDict["FamilyBlues"] = familyBlues
private.rawDict["FamilyOtherBlues"] = familyOtherBlues
# only write the stems if both are defined.
if (stemSnapH and stemSnapV):
private.rawDict["StemSnapH"] = stemSnapH
private.rawDict["StdHW"] = stemSnapH[0]
private.rawDict["StemSnapV"] = stemSnapV
private.rawDict["StdVW"] = stemSnapV[0]
# populate glyphs
for glyphName in self.glyphOrder:
glyph = self.allGlyphs[glyphName]
unicodes = glyph.unicodes
charString = self.getCharStringForGlyph(glyph, private,
globalSubrs)
# add to the font
exists = charStrings.has_key(glyphName)
if exists:
# XXX a glyph already has this name. should we choke?
glyphID = charStrings.charStrings[glyphName]
charStringsIndex.items[glyphID] = charString
else:
charStringsIndex.append(charString)
glyphID = len(topDict.charset)
charStrings.charStrings[glyphName] = glyphID
topDict.charset.append(glyphName)
topDict.FontBBox = self.fontBoundingBox
# write the glyph order
self.otf.setGlyphOrder(self.glyphOrder)
def setupOtherTables(self):
"""
Make the other tables. The default implementation does nothing.
**This should not be called externally.** Subclasses
may override this method to add other tables to the
font if desired.
"""
pass
def makeLookup1():
# make a variation of the shell TTX data
f = open(shellSourcePath)
ttxData = f.read()
f.close()
ttxData = ttxData.replace("__familyName__", "gsubtest-lookup1")
tempShellSourcePath = shellSourcePath + ".temp"
f = open(tempShellSourcePath, "wb")
f.write(ttxData)
f.close()
# compile the shell
shell = TTFont(sfntVersion="OTTO")
shell.importXML(tempShellSourcePath)
shell.save(shellTempPath)
os.remove(tempShellSourcePath)
# load the shell
shell = TTFont(shellTempPath)
# grab the PASS and FAIL data
hmtx = shell["hmtx"]
glyphSet = shell.getGlyphSet()
failGlyph = glyphSet["F"]
failGlyph.decompile()
failGlyphProgram = list(failGlyph.program)
failGlyphMetrics = hmtx["F"]
passGlyph = glyphSet["P"]
passGlyph.decompile()
passGlyphProgram = list(passGlyph.program)
passGlyphMetrics = hmtx["P"]
# grab some tables
hmtx = shell["hmtx"]
cmap = shell["cmap"]
# start the glyph order
existingGlyphs = [".notdef", "space", "F", "P"]
glyphOrder = list(existingGlyphs)
# start the CFF
cff = shell["CFF "].cff
globalSubrs = cff.GlobalSubrs
topDict = cff.topDictIndex[0]
topDict.charset = existingGlyphs
private = topDict.Private
charStrings = topDict.CharStrings
charStringsIndex = charStrings.charStringsIndex
features = sorted(mapping)
# build the outline, hmtx and cmap data
cp = baseCodepoint
for index, tag in enumerate(features):
# tag.pass
glyphName = "{0!s}.pass".format(tag)
glyphOrder.append(glyphName)
addGlyphToCFF(
glyphName=glyphName,
program=passGlyphProgram,
private=private,
globalSubrs=globalSubrs,
charStringsIndex=charStringsIndex,
topDict=topDict,
charStrings=charStrings
)
hmtx[glyphName] = passGlyphMetrics
for table in cmap.tables:
if table.format == 4:
table.cmap[cp] = glyphName
else:
raise NotImplementedError, "Unsupported cmap table format: {0:d}".format(table.format)
cp += 1
# tag.fail
glyphName = "{0!s}.fail".format(tag)
glyphOrder.append(glyphName)
addGlyphToCFF(
glyphName=glyphName,
program=failGlyphProgram,
private=private,
globalSubrs=globalSubrs,
charStringsIndex=charStringsIndex,
topDict=topDict,
charStrings=charStrings
)
hmtx[glyphName] = failGlyphMetrics
for table in cmap.tables:
if table.format == 4:
table.cmap[cp] = glyphName
else:
raise NotImplementedError, "Unsupported cmap table format: {0:d}".format(table.format)
# bump this up so that the sequence is the same as the lookup 3 font
cp += 3
# set the glyph order
shell.setGlyphOrder(glyphOrder)
# start the GSUB
shell["GSUB"] = newTable("GSUB")
gsub = shell["GSUB"].table = GSUB()
gsub.Version = 1.0
# make a list of all the features we will make
featureCount = len(features)
# set up the script list
scriptList = gsub.ScriptList = ScriptList()
scriptList.ScriptCount = 1
scriptList.ScriptRecord = []
scriptRecord = ScriptRecord()
scriptList.ScriptRecord.append(scriptRecord)
scriptRecord.ScriptTag = "DFLT"
script = scriptRecord.Script = Script()
defaultLangSys = script.DefaultLangSys = DefaultLangSys()
defaultLangSys.FeatureCount = featureCount
defaultLangSys.FeatureIndex = range(defaultLangSys.FeatureCount)
defaultLangSys.ReqFeatureIndex = 65535
defaultLangSys.LookupOrder = None
script.LangSysCount = 0
script.LangSysRecord = []
# set up the feature list
featureList = gsub.FeatureList = FeatureList()
featureList.FeatureCount = featureCount
featureList.FeatureRecord = []
for index, tag in enumerate(features):
# feature record
featureRecord = FeatureRecord()
featureRecord.FeatureTag = tag
feature = featureRecord.Feature = Feature()
featureList.FeatureRecord.append(featureRecord)
# feature
feature.FeatureParams = None
feature.LookupCount = 1
feature.LookupListIndex = [index]
# write the lookups
lookupList = gsub.LookupList = LookupList()
lookupList.LookupCount = featureCount
lookupList.Lookup = []
for tag in features:
# lookup
lookup = Lookup()
lookup.LookupType = 1
lookup.LookupFlag = 0
lookup.SubTableCount = 1
lookup.SubTable = []
lookupList.Lookup.append(lookup)
# subtable
subtable = SingleSubst()
subtable.Format = 2
subtable.LookupType = 1
subtable.mapping = {
"{0!s}.pass".format(tag) : "{0!s}.fail".format(tag),
"{0!s}.fail".format(tag) : "{0!s}.pass".format(tag),
}
lookup.SubTable.append(subtable)
path = outputPath % 1 + ".otf"
if os.path.exists(path):
os.remove(path)
shell.save(path)
# get rid of the shell
if os.path.exists(shellTempPath):
os.remove(shellTempPath)
def make_font(feature_source, fea_type="fea"):
"""Return font with GSUB compiled from given source.
Adds a bunch of filler tables so the font can be saved if needed, for
debugging purposes.
"""
# copied from fontTools' feaLib/builder_test.
glyphs = """
.notdef space slash fraction semicolon period comma ampersand
quotedblleft quotedblright quoteleft quoteright
zero one two three four five six seven eight nine
zero.oldstyle one.oldstyle two.oldstyle three.oldstyle
four.oldstyle five.oldstyle six.oldstyle seven.oldstyle
eight.oldstyle nine.oldstyle onequarter onehalf threequarters
onesuperior twosuperior threesuperior ordfeminine ordmasculine
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
a b c d e f g h i j k l m n o p q r s t u v w x y z
A.sc B.sc C.sc D.sc E.sc F.sc G.sc H.sc I.sc J.sc K.sc L.sc M.sc
N.sc O.sc P.sc Q.sc R.sc S.sc T.sc U.sc V.sc W.sc X.sc Y.sc Z.sc
A.alt1 A.alt2 A.alt3 B.alt1 B.alt2 B.alt3 C.alt1 C.alt2 C.alt3
a.alt1 a.alt2 a.alt3 a.end b.alt c.mid d.alt d.mid
e.begin e.mid e.end m.begin n.end s.end z.end
Eng Eng.alt1 Eng.alt2 Eng.alt3
A.swash B.swash C.swash D.swash E.swash F.swash G.swash H.swash
I.swash J.swash K.swash L.swash M.swash N.swash O.swash P.swash
Q.swash R.swash S.swash T.swash U.swash V.swash W.swash X.swash
Y.swash Z.swash
f_l c_h c_k c_s c_t f_f f_f_i f_f_l f_i o_f_f_i s_t f_i.begin
a_n_d T_h T_h.swash germandbls ydieresis yacute breve
grave acute dieresis macron circumflex cedilla umlaut ogonek caron
damma hamza sukun kasratan lam_meem_jeem noon.final noon.initial
by feature lookup sub table
""".split()
font = TTFont()
font.setGlyphOrder(glyphs)
glyph_order = font.getGlyphOrder()
font["cmap"] = cmap = newTable("cmap")
table = cmap_format_4(4)
table.platformID = 3
table.platEncID = 1
table.language = 0
table.cmap = {AGL2UV[n]: n for n in glyph_order if n in AGL2UV}
cmap.tableVersion = 0
cmap.tables = [table]
font["glyf"] = glyf = newTable("glyf")
glyf.glyphs = {}
glyf.glyphOrder = glyph_order
for name in glyph_order:
pen = TTGlyphPen(None)
glyf[name] = pen.glyph()
font["head"] = head = newTable("head")
head.tableVersion = 1.0
head.fontRevision = 1.0
head.flags = (
head.checkSumAdjustment
) = (
head.magicNumber
) = (
head.created
) = (
head.modified
) = (
head.macStyle
) = (
head.lowestRecPPEM
) = (
head.fontDirectionHint
) = (
head.indexToLocFormat
) = head.glyphDataFormat = head.xMin = head.xMax = head.yMin = head.yMax = 0
head.unitsPerEm = 1000
font["hhea"] = hhea = newTable("hhea")
hhea.tableVersion = 0x00010000
hhea.ascent = (
hhea.descent
) = (
hhea.lineGap
) = (
hhea.caretSlopeRise
) = (
hhea.caretSlopeRun
) = (
hhea.caretOffset
) = (
hhea.reserved0
) = (
hhea.reserved1
) = (
hhea.reserved2
) = (
hhea.reserved3
) = (
hhea.metricDataFormat
) = (
hhea.advanceWidthMax
) = (
hhea.xMaxExtent
) = hhea.minLeftSideBearing = hhea.minRightSideBearing = hhea.numberOfHMetrics = 0
font["hmtx"] = hmtx = newTable("hmtx")
hmtx.metrics = {}
for name in glyph_order:
hmtx[name] = (600, 50)
font["loca"] = newTable("loca")
font["maxp"] = maxp = newTable("maxp")
maxp.tableVersion = 0x00005000
maxp.numGlyphs = 0
font["post"] = post = newTable("post")
post.formatType = 2.0
post.extraNames = []
post.mapping = {}
post.glyphOrder = glyph_order
post.italicAngle = (
post.underlinePosition
) = (
post.underlineThickness
) = (
post.isFixedPitch
) = post.minMemType42 = post.maxMemType42 = post.minMemType1 = post.maxMemType1 = 0
if fea_type == "fea":
addOpenTypeFeaturesFromString(font, feature_source)
elif fea_type == "mti":
font["GSUB"] = mtiLib.build(UnicodeIO(feature_source), font)
return font
class OTFPostProcessor(object):
"""Does some post-processing operations on a compiled OpenType font, using
info from the source UFO where necessary.
"""
def __init__(self, otf, ufo):
self.ufo = ufo
stream = BytesIO()
otf.save(stream)
stream.seek(0)
self.otf = TTFont(stream)
def process(self, useProductionNames=True, optimizeCff=True):
if useProductionNames:
self._rename_glyphs_from_ufo()
if optimizeCff and 'CFF ' in self.otf:
from compreffor import Compreffor
comp = Compreffor(self.otf)
comp.compress()
return self.otf
def _rename_glyphs_from_ufo(self):
"""Rename glyphs using glif.lib.public.postscriptNames in UFO."""
rename_map = {
g.name: self._build_production_name(g) for g in self.ufo}
# .notdef may not be present in the original font
rename_map[".notdef"] = ".notdef"
rename = lambda names: [rename_map[n] for n in names]
self.otf.setGlyphOrder(rename(self.otf.getGlyphOrder()))
if 'CFF ' in self.otf:
cff = self.otf['CFF '].cff.topDictIndex[0]
char_strings = cff.CharStrings.charStrings
cff.CharStrings.charStrings = {
rename_map.get(n, n): v for n, v in char_strings.items()}
cff.charset = rename(cff.charset)
def _build_production_name(self, glyph):
"""Build a production name for a single glyph."""
# use name from Glyphs source if available
production_name = glyph.lib.get('public.postscriptName')
if production_name:
return production_name
# use name derived from unicode value
unicode_val = glyph.unicode
if glyph.unicode is not None:
return '%s%04X' % (
'u' if unicode_val > 0xffff else 'uni', unicode_val)
# use production name + last (non-script) suffix if possible
parts = glyph.name.rsplit('.', 1)
if len(parts) == 2 and parts[0] in self.ufo:
return '%s.%s' % (
self._build_production_name(self.ufo[parts[0]]), parts[1])
# use ligature name, making sure to look up components with suffixes
parts = glyph.name.split('.', 1)
if len(parts) == 2:
liga_parts = ['%s.%s' % (n, parts[1]) for n in parts[0].split('_')]
else:
liga_parts = glyph.name.split('_')
if len(liga_parts) > 1 and all(n in self.ufo for n in liga_parts):
unicode_vals = [self.ufo[n].unicode for n in liga_parts]
if all(v and v <= 0xffff for v in unicode_vals):
return 'uni' + ''.join('%04X' % v for v in unicode_vals)
return '_'.join(
self._build_production_name(self.ufo[n]) for n in liga_parts)
return glyph.name
def test_max_ctx_calc_no_features():
font = TTFont()
assert maxCtxFont(font) == 0
font.setGlyphOrder(['.notdef'])
addOpenTypeFeaturesFromString(font, '')
assert maxCtxFont(font) == 0
class WOFF2Writer(SFNTWriter):
flavor = "woff2"
def __init__(self, file, numTables, sfntVersion="\000\001\000\000",
flavor=None, flavorData=None):
if not haveBrotli:
print('The WOFF2 encoder requires the Brotli Python extension, available at:\n'
'https://github.com/google/brotli', file=sys.stderr)
raise ImportError("No module named brotli")
self.file = file
self.numTables = numTables
self.sfntVersion = Tag(sfntVersion)
self.flavorData = flavorData or WOFF2FlavorData()
self.directoryFormat = woff2DirectoryFormat
self.directorySize = woff2DirectorySize
self.DirectoryEntry = WOFF2DirectoryEntry
self.signature = Tag("wOF2")
self.nextTableOffset = 0
self.transformBuffer = BytesIO()
self.tables = OrderedDict()
# make empty TTFont to store data while normalising and transforming tables
self.ttFont = TTFont(recalcBBoxes=False, recalcTimestamp=False)
def __setitem__(self, tag, data):
"""Associate new entry named 'tag' with raw table data."""
if tag in self.tables:
raise TTLibError("cannot rewrite '%s' table" % tag)
if tag == 'DSIG':
# always drop DSIG table, since the encoding process can invalidate it
self.numTables -= 1
return
entry = self.DirectoryEntry()
entry.tag = Tag(tag)
entry.flags = getKnownTagIndex(entry.tag)
# WOFF2 table data are written to disk only on close(), after all tags
# have been specified
entry.data = data
self.tables[tag] = entry
def close(self):
""" All tags must have been specified. Now write the table data and directory.
"""
if len(self.tables) != self.numTables:
raise TTLibError("wrong number of tables; expected %d, found %d" % (self.numTables, len(self.tables)))
if self.sfntVersion in ("\x00\x01\x00\x00", "true"):
isTrueType = True
elif self.sfntVersion == "OTTO":
isTrueType = False
else:
raise TTLibError("Not a TrueType or OpenType font (bad sfntVersion)")
# The WOFF2 spec no longer requires the glyph offsets to be 4-byte aligned.
# However, the reference WOFF2 implementation still fails to reconstruct
# 'unpadded' glyf tables, therefore we need to 'normalise' them.
# See:
# https://github.com/khaledhosny/ots/issues/60
# https://github.com/google/woff2/issues/15
if isTrueType:
self._normaliseGlyfAndLoca(padding=4)
self._setHeadTransformFlag()
# To pass the legacy OpenType Sanitiser currently included in browsers,
# we must sort the table directory and data alphabetically by tag.
# See:
# https://github.com/google/woff2/pull/3
# https://lists.w3.org/Archives/Public/public-webfonts-wg/2015Mar/0000.html
# TODO(user): remove to match spec once browsers are on newer OTS
self.tables = OrderedDict(sorted(self.tables.items()))
self.totalSfntSize = self._calcSFNTChecksumsLengthsAndOffsets()
fontData = self._transformTables()
compressedFont = brotli.compress(fontData, mode=brotli.MODE_FONT)
self.totalCompressedSize = len(compressedFont)
self.length = self._calcTotalSize()
self.majorVersion, self.minorVersion = self._getVersion()
self.reserved = 0
directory = self._packTableDirectory()
self.file.seek(0)
self.file.write(pad(directory + compressedFont, size=4))
self._writeFlavorData()
def _normaliseGlyfAndLoca(self, padding=4):
""" Recompile glyf and loca tables, aligning glyph offsets to multiples of
'padding' size. Update the head table's 'indexToLocFormat' accordingly while
compiling loca.
"""
if self.sfntVersion == "OTTO":
return
# make up glyph names required to decompile glyf table
self._decompileTable('maxp')
numGlyphs = self.ttFont['maxp'].numGlyphs
glyphOrder = ['.notdef'] + ["glyph%.5d" % i for i in range(1, numGlyphs)]
self.ttFont.setGlyphOrder(glyphOrder)
for tag in ('head', 'loca', 'glyf'):
self._decompileTable(tag)
self.ttFont['glyf'].padding = padding
for tag in ('glyf', 'loca'):
self._compileTable(tag)
def _setHeadTransformFlag(self):
""" Set bit 11 of 'head' table flags to indicate that the font has undergone
a lossless modifying transform. Re-compile head table data."""
self._decompileTable('head')
self.ttFont['head'].flags |= (1 << 11)
self._compileTable('head')
def _decompileTable(self, tag):
""" Fetch table data, decompile it, and store it inside self.ttFont. """
tag = Tag(tag)
if tag not in self.tables:
raise TTLibError("missing required table: %s" % tag)
if self.ttFont.isLoaded(tag):
return
data = self.tables[tag].data
if tag == 'loca':
tableClass = WOFF2LocaTable
elif tag == 'glyf':
tableClass = WOFF2GlyfTable
else:
tableClass = getTableClass(tag)
table = tableClass(tag)
self.ttFont.tables[tag] = table
table.decompile(data, self.ttFont)
def _compileTable(self, tag):
""" Compile table and store it in its 'data' attribute. """
self.tables[tag].data = self.ttFont[tag].compile(self.ttFont)
def _calcSFNTChecksumsLengthsAndOffsets(self):
""" Compute the 'original' SFNT checksums, lengths and offsets for checksum
adjustment calculation. Return the total size of the uncompressed font.
"""
offset = sfntDirectorySize + sfntDirectoryEntrySize * len(self.tables)
for tag, entry in self.tables.items():
data = entry.data
entry.origOffset = offset
entry.origLength = len(data)
if tag == 'head':
entry.checkSum = calcChecksum(data[:8] + b'\0\0\0\0' + data[12:])
else:
entry.checkSum = calcChecksum(data)
offset += (entry.origLength + 3) & ~3
return offset
def _transformTables(self):
"""Return transformed font data."""
for tag, entry in self.tables.items():
if tag in woff2TransformedTableTags:
data = self.transformTable(tag)
else:
data = entry.data
entry.offset = self.nextTableOffset
entry.saveData(self.transformBuffer, data)
self.nextTableOffset += entry.length
self.writeMasterChecksum()
fontData = self.transformBuffer.getvalue()
return fontData
def transformTable(self, tag):
"""Return transformed table data."""
if tag not in woff2TransformedTableTags:
raise TTLibError("Transform for table '%s' is unknown" % tag)
if tag == "loca":
data = b""
elif tag == "glyf":
for tag in ('maxp', 'head', 'loca', 'glyf'):
self._decompileTable(tag)
glyfTable = self.ttFont['glyf']
data = glyfTable.transform(self.ttFont)
else:
raise NotImplementedError
return data
def _calcMasterChecksum(self):
"""Calculate checkSumAdjustment."""
tags = list(self.tables.keys())
checksums = []
for i in range(len(tags)):
checksums.append(self.tables[tags[i]].checkSum)
# Create a SFNT directory for checksum calculation purposes
self.searchRange, self.entrySelector, self.rangeShift = getSearchRange(self.numTables, 16)
directory = sstruct.pack(sfntDirectoryFormat, self)
tables = sorted(self.tables.items())
for tag, entry in tables:
sfntEntry = SFNTDirectoryEntry()
sfntEntry.tag = entry.tag
sfntEntry.checkSum = entry.checkSum
sfntEntry.offset = entry.origOffset
sfntEntry.length = entry.origLength
directory = directory + sfntEntry.toString()
directory_end = sfntDirectorySize + len(self.tables) * sfntDirectoryEntrySize
assert directory_end == len(directory)
checksums.append(calcChecksum(directory))
checksum = sum(checksums) & 0xffffffff
# BiboAfba!
checksumadjustment = (0xB1B0AFBA - checksum) & 0xffffffff
return checksumadjustment
def writeMasterChecksum(self):
"""Write checkSumAdjustment to the transformBuffer."""
checksumadjustment = self._calcMasterChecksum()
self.transformBuffer.seek(self.tables['head'].offset + 8)
self.transformBuffer.write(struct.pack(">L", checksumadjustment))
def _calcTotalSize(self):
"""Calculate total size of WOFF2 font, including any meta- and/or private data."""
offset = self.directorySize
for entry in self.tables.values():
offset += len(entry.toString())
offset += self.totalCompressedSize
offset = (offset + 3) & ~3
offset = self._calcFlavorDataOffsetsAndSize(offset)
return offset
def _calcFlavorDataOffsetsAndSize(self, start):
"""Calculate offsets and lengths for any meta- and/or private data."""
offset = start
data = self.flavorData
if data.metaData:
self.metaOrigLength = len(data.metaData)
self.metaOffset = offset
self.compressedMetaData = brotli.compress(
data.metaData, mode=brotli.MODE_TEXT)
self.metaLength = len(self.compressedMetaData)
offset += self.metaLength
else:
self.metaOffset = self.metaLength = self.metaOrigLength = 0
self.compressedMetaData = b""
if data.privData:
# make sure private data is padded to 4-byte boundary
offset = (offset + 3) & ~3
self.privOffset = offset
self.privLength = len(data.privData)
offset += self.privLength
else:
self.privOffset = self.privLength = 0
return offset
def _getVersion(self):
"""Return the WOFF2 font's (majorVersion, minorVersion) tuple."""
data = self.flavorData
if data.majorVersion is not None and data.minorVersion is not None:
return data.majorVersion, data.minorVersion
else:
# if None, return 'fontRevision' from 'head' table
if 'head' in self.tables:
return struct.unpack(">HH", self.tables['head'].data[4:8])
else:
return 0, 0
def _packTableDirectory(self):
"""Return WOFF2 table directory data."""
directory = sstruct.pack(self.directoryFormat, self)
for entry in self.tables.values():
directory = directory + entry.toString()
return directory
def _writeFlavorData(self):
"""Write metadata and/or private data using appropiate padding."""
compressedMetaData = self.compressedMetaData
privData = self.flavorData.privData
if compressedMetaData and privData:
compressedMetaData = pad(compressedMetaData, size=4)
if compressedMetaData:
self.file.seek(self.metaOffset)
assert self.file.tell() == self.metaOffset
self.file.write(compressedMetaData)
if privData:
self.file.seek(self.privOffset)
assert self.file.tell() == self.privOffset
self.file.write(privData)
def reordersTables(self):
return True
def create_font(celf):
font = TTFont()
font.setGlyphOrder(celf.GLYPH_ORDER)
return font
fonts.append(TTFont(sys.argv[index], lazy=False))
if fonts[0].getGlyphOrder() != fonts[-1].getGlyphOrder():
glyphs1 = fonts[0].getGlyphOrder()
glyphs2 = fonts[-1].getGlyphOrder()
missing = [glyph for glyph in glyphs1 if glyph not in glyphs2]
extra = [glyph for glyph in glyphs2 if glyph not in glyphs1]
print("all fonts must have the same glyph order!")
print("missing from {}:".format(sys.argv[index]))
print(missing)
print("extra from {}:".format(sys.argv[index]))
print(extra)
sys.exit(1)
out_font = TTFont()
out_font.setGlyphOrder(fonts[0].getGlyphOrder())
# Most tables are just copied from the first input file
# TODO: em values and PPEM will vary, does this matter?
for tag in ("head", "hhea", "maxp", "OS/2", "hmtx", "cmap", "name", "post"):
out_font[tag] = fonts[0][tag]
out_font["EBLC"] = eblc = table_E_B_L_C_()
out_font["EBDT"] = ebdt = table_E_B_D_T_()
eblc.version = fonts[0]["EBLC"].version
ebdt.version = fonts[0]["EBDT"].version
eblc.strikes = []
ebdt.strikeData = []
def test_max_ctx_calc_no_features():
font = TTFont()
assert maxCtxFont(font) == 0
font.setGlyphOrder(['.notdef'])
addOpenTypeFeaturesFromString(font, '')
assert maxCtxFont(font) == 0
def create_font(celf):
font = TTFont()
font.setGlyphOrder(celf.GLYPH_ORDER)
return font
def makeLookup1():
# make a variation of the shell TTX data
f = open(shellSourcePath)
ttxData = f.read()
f.close()
ttxData = ttxData.replace("__familyName__", "gsubtest-lookup1")
tempShellSourcePath = shellSourcePath + ".temp"
f = open(tempShellSourcePath, "wb")
f.write(ttxData)
f.close()
# compile the shell
shell = TTFont(sfntVersion="OTTO")
shell.importXML(tempShellSourcePath)
shell.save(shellTempPath)
os.remove(tempShellSourcePath)
# load the shell
shell = TTFont(shellTempPath)
# grab the PASS and FAIL data
hmtx = shell["hmtx"]
glyphSet = shell.getGlyphSet()
failGlyph = glyphSet["F"]
failGlyph.decompile()
failGlyphProgram = list(failGlyph.program)
failGlyphMetrics = hmtx["F"]
passGlyph = glyphSet["P"]
passGlyph.decompile()
passGlyphProgram = list(passGlyph.program)
passGlyphMetrics = hmtx["P"]
# grab some tables
hmtx = shell["hmtx"]
cmap = shell["cmap"]
# start the glyph order
existingGlyphs = [".notdef", "space", "F", "P"]
glyphOrder = list(existingGlyphs)
# start the CFF
cff = shell["CFF "].cff
globalSubrs = cff.GlobalSubrs
topDict = cff.topDictIndex[0]
topDict.charset = existingGlyphs
private = topDict.Private
charStrings = topDict.CharStrings
charStringsIndex = charStrings.charStringsIndex
features = sorted(mapping)
# build the outline, hmtx and cmap data
cp = baseCodepoint
for index, tag in enumerate(features):
# tag.pass
glyphName = "%s.pass" % tag
glyphOrder.append(glyphName)
addGlyphToCFF(
glyphName=glyphName,
program=passGlyphProgram,
private=private,
globalSubrs=globalSubrs,
charStringsIndex=charStringsIndex,
topDict=topDict,
charStrings=charStrings,
)
hmtx[glyphName] = passGlyphMetrics
for table in cmap.tables:
if table.format == 4:
table.cmap[cp] = glyphName
else:
raise NotImplementedError("Unsupported cmap table format: %d" %
table.format)
cp += 1
# tag.fail
glyphName = "%s.fail" % tag
glyphOrder.append(glyphName)
addGlyphToCFF(
glyphName=glyphName,
program=failGlyphProgram,
private=private,
globalSubrs=globalSubrs,
charStringsIndex=charStringsIndex,
topDict=topDict,
charStrings=charStrings,
)
hmtx[glyphName] = failGlyphMetrics
for table in cmap.tables:
if table.format == 4:
table.cmap[cp] = glyphName
else:
raise NotImplementedError("Unsupported cmap table format: %d" %
table.format)
# bump this up so that the sequence is the same as the lookup 3 font
cp += 3
# set the glyph order
shell.setGlyphOrder(glyphOrder)
# start the GSUB
shell["GSUB"] = newTable("GSUB")
gsub = shell["GSUB"].table = GSUB()
gsub.Version = 1.0
# make a list of all the features we will make
featureCount = len(features)
# set up the script list
scriptList = gsub.ScriptList = ScriptList()
scriptList.ScriptCount = 1
scriptList.ScriptRecord = []
scriptRecord = ScriptRecord()
scriptList.ScriptRecord.append(scriptRecord)
scriptRecord.ScriptTag = "DFLT"
script = scriptRecord.Script = Script()
defaultLangSys = script.DefaultLangSys = DefaultLangSys()
defaultLangSys.FeatureCount = featureCount
defaultLangSys.FeatureIndex = range(defaultLangSys.FeatureCount)
defaultLangSys.ReqFeatureIndex = 65535
defaultLangSys.LookupOrder = None
script.LangSysCount = 0
script.LangSysRecord = []
# set up the feature list
featureList = gsub.FeatureList = FeatureList()
featureList.FeatureCount = featureCount
featureList.FeatureRecord = []
for index, tag in enumerate(features):
# feature record
featureRecord = FeatureRecord()
featureRecord.FeatureTag = tag
feature = featureRecord.Feature = Feature()
featureList.FeatureRecord.append(featureRecord)
# feature
feature.FeatureParams = None
feature.LookupCount = 1
feature.LookupListIndex = [index]
# write the lookups
lookupList = gsub.LookupList = LookupList()
lookupList.LookupCount = featureCount
lookupList.Lookup = []
for tag in features:
# lookup
lookup = Lookup()
lookup.LookupType = 1
lookup.LookupFlag = 0
lookup.SubTableCount = 1
lookup.SubTable = []
lookupList.Lookup.append(lookup)
# subtable
subtable = SingleSubst()
subtable.Format = 2
subtable.LookupType = 1
subtable.mapping = {
"%s.pass" % tag: "%s.fail" % tag,
"%s.fail" % tag: "%s.pass" % tag,
}
lookup.SubTable.append(subtable)
path = outputPath % 1 + ".otf"
if os.path.exists(path):
os.remove(path)
shell.save(path)
# get rid of the shell
if os.path.exists(shellTempPath):
os.remove(shellTempPath)
def __init__(self, ufo):
self.ufo = ufo
otf = TTFont()
otf.setGlyphOrder(ufo.glyphOrder)
super(CompositorUFOFont, self).__init__(otf)