def empty_svg_font():
glyph_order = [".notdef"] + list(ascii_letters)
pen = TTGlyphPen(glyphSet=None)
pen.moveTo((0, 0))
pen.lineTo((0, 500))
pen.lineTo((500, 500))
pen.lineTo((500, 0))
pen.closePath()
glyph = pen.glyph()
glyphs = {g: glyph for g in glyph_order}
fb = FontBuilder(unitsPerEm=1024, isTTF=True)
fb.setupGlyphOrder(glyph_order)
fb.setupCharacterMap({ord(c): c for c in ascii_letters})
fb.setupGlyf(glyphs)
fb.setupHorizontalMetrics({g: (500, 0) for g in glyph_order})
fb.setupHorizontalHeader()
fb.setupOS2()
fb.setupPost()
fb.setupNameTable({"familyName": "TestSVG", "styleName": "Regular"})
svg_table = newTable("SVG ")
svg_table.docList = []
fb.font["SVG "] = svg_table
return fb.font
def build_font(srcs, metadata, filename):
ascent = 880
descent = 120
upem = ascent + descent
scale = upem / 360.0
transform = Transform(scale, 0, 0, -scale, 0, ascent)
glyphs = collect_glyphs(srcs, transform=transform)
builder = FontBuilder(1000, isTTF=False)
builder.setupGlyphOrder([glyph.name for glyph in glyphs])
builder.setupCharacterMap({0: ".notdef"})
psname = metadata["psName"]
builder.setupCFF(psname, {"FullName": psname},
{glyph.name: glyph.charstring
for glyph in glyphs}, {})
builder.setupHorizontalMetrics(
{glyph.name: glyph.get_hmetrics()
for glyph in glyphs})
builder.setupHorizontalHeader(ascent=ascent, descent=-descent)
builder.setupNameTable({})
builder.setupOS2()
builder.setupPost()
builder.setupVerticalMetrics(
{glyph.name: glyph.get_vmetrics(ascent=ascent)
for glyph in glyphs})
builder.setupVerticalOrigins({}, ascent)
builder.setupVerticalHeader(ascent=ascent, descent=-descent)
builder.save(filename)
def featureVarsTestFont():
fb = FontBuilder(unitsPerEm=100)
fb.setupGlyphOrder([".notdef", "f", "f_f", "dollar", "dollar.rvrn"])
fb.setupCharacterMap({ord("f"): "f", ord("$"): "dollar"})
fb.setupNameTable({
"familyName": "TestFeatureVars",
"styleName": "Regular"
})
fb.setupPost()
fb.setupFvar(axes=[("wght", 100, 400, 900, "Weight")], instances=[])
fb.addOpenTypeFeatures("""\
feature dlig {
sub f f by f_f;
} dlig;
""")
fb.addFeatureVariations([([{
"wght": (0.20886, 1.0)
}], {
"dollar": "dollar.rvrn"
})],
featureTag="rvrn")
buf = io.BytesIO()
fb.save(buf)
buf.seek(0)
return TTFont(buf)
def minimalTTF():
fb = FontBuilder(1024, isTTF=True)
fb.updateHead(unitsPerEm=1000, created=0, modified=0)
fb.setupGlyphOrder([
".notdef", ".null", "A", "Aacute", "V", "acutecomb", "gravecomb",
"A.alt"
])
fb.setupCharacterMap({
65: "A",
192: "Aacute",
86: "V",
769: "acutecomb",
768: "gravecomb"
})
advanceWidths = {
".notdef": 600,
"A": 600,
"Aacute": 600,
"V": 600,
".null": 600,
"acutecomb": 0,
"gravecomb": 0,
"A.alt": 600
}
familyName = "HelloTestFont"
styleName = "TotallyNormal"
nameStrings = dict(familyName=dict(en="HelloTestFont", nl="HalloTestFont"),
styleName=dict(en="TotallyNormal", nl="TotaalNormaal"))
nameStrings['psName'] = familyName + "-" + styleName
glyphs = {
".notdef": test_glyph(),
".null": test_glyph(),
"A": test_glyph(),
"Aacute": test_glyph(),
"V": test_glyph(),
"acutecomb": test_glyph(),
"gravecomb": test_glyph(),
"A.alt": test_glyph()
}
fb.setupGlyf(glyphs)
metrics = {}
glyphTable = fb.font["glyf"]
for gn, advanceWidth in advanceWidths.items():
metrics[gn] = (advanceWidth, glyphTable[gn].xMin)
fb.setupHorizontalMetrics(metrics)
fb.setupHorizontalHeader()
fb.setupNameTable(nameStrings)
fb.setupOS2()
fb.setupPost()
return fb
def _make_fontfile_with_OS2(*, version, **kwargs):
upem = 1000
glyphOrder = [".notdef", "a"]
cmap = {0x61: "a"}
glyphs = {gn: Glyph() for gn in glyphOrder}
hmtx = {gn: (500, 0) for gn in glyphOrder}
names = {"familyName": "TestOS2", "styleName": "Regular"}
fb = FontBuilder(unitsPerEm=upem)
fb.setupGlyphOrder(glyphOrder)
fb.setupCharacterMap(cmap)
fb.setupGlyf(glyphs)
fb.setupHorizontalMetrics(hmtx)
fb.setupHorizontalHeader()
fb.setupNameTable(names)
fb.setupOS2(version=version, **kwargs)
return _compile(fb.font)
def test_subset_feature_variations():
fb = FontBuilder(unitsPerEm=100)
fb.setupGlyphOrder([".notdef", "f", "f_f", "dollar", "dollar.rvrn"])
fb.setupCharacterMap({ord("f"): "f", ord("$"): "dollar"})
fb.setupNameTable({
"familyName": "TestFeatureVars",
"styleName": "Regular"
})
fb.setupPost()
fb.setupFvar(axes=[("wght", 100, 400, 900, "Weight")], instances=[])
fb.addOpenTypeFeatures("""\
feature dlig {
sub f f by f_f;
} dlig;
""")
fb.addFeatureVariations([([{
"wght": (0.20886, 1.0)
}], {
"dollar": "dollar.rvrn"
})],
featureTag="rvrn")
buf = io.BytesIO()
fb.save(buf)
buf.seek(0)
font = TTFont(buf)
options = subset.Options()
subsetter = subset.Subsetter(options)
subsetter.populate(unicodes=[ord("f"), ord("$")])
subsetter.subset(font)
featureTags = {
r.FeatureTag
for r in font["GSUB"].table.FeatureList.FeatureRecord
}
# 'dlig' is discretionary so it is dropped by default
assert "dlig" not in featureTags
assert "f_f" not in font.getGlyphOrder()
# 'rvrn' is required so it is kept by default
assert "rvrn" in featureTags
assert "dollar.rvrn" in font.getGlyphOrder()
def test_unicodeVariationSequences(tmpdir):
familyName = "UVSTestFont"
styleName = "Regular"
nameStrings = dict(familyName=familyName, styleName=styleName)
nameStrings['psName'] = familyName + "-" + styleName
glyphOrder = [".notdef", "space", "zero", "zero.slash"]
cmap = {ord(" "): "space", ord("0"): "zero"}
uvs = [
(0x0030, 0xFE00, "zero.slash"),
(0x0030, 0xFE01, None), # not an official sequence, just testing
]
metrics = {gn: (600, 0) for gn in glyphOrder}
pen = TTGlyphPen(None)
glyph = pen.glyph() # empty placeholder
glyphs = {gn: glyph for gn in glyphOrder}
fb = FontBuilder(1024, isTTF=True)
fb.setupGlyphOrder(glyphOrder)
fb.setupCharacterMap(cmap, uvs)
fb.setupGlyf(glyphs)
fb.setupHorizontalMetrics(metrics)
fb.setupHorizontalHeader(ascent=824, descent=200)
fb.setupNameTable(nameStrings)
fb.setupOS2()
fb.setupPost()
outPath = os.path.join(str(tmpdir), "test_uvs.ttf")
fb.save(outPath)
_verifyOutput(outPath, tables=["cmap"])
uvs = [
(0x0030, 0xFE00, "zero.slash"),
(
0x0030, 0xFE01, "zero"
), # should result in the exact same subtable data, due to cmap[0x0030] == "zero"
]
fb.setupCharacterMap(cmap, uvs)
fb.save(outPath)
_verifyOutput(outPath, tables=["cmap"])
def test_unicodeVariationSequences(tmpdir):
familyName = "UVSTestFont"
styleName = "Regular"
nameStrings = dict(familyName=familyName, styleName=styleName)
nameStrings['psName'] = familyName + "-" + styleName
glyphOrder = [".notdef", "space", "zero", "zero.slash"]
cmap = {ord(" "): "space", ord("0"): "zero"}
uvs = [
(0x0030, 0xFE00, "zero.slash"),
(0x0030, 0xFE01, None), # not an official sequence, just testing
]
metrics = {gn: (600, 0) for gn in glyphOrder}
pen = TTGlyphPen(None)
glyph = pen.glyph() # empty placeholder
glyphs = {gn: glyph for gn in glyphOrder}
fb = FontBuilder(1024, isTTF=True)
fb.setupGlyphOrder(glyphOrder)
fb.setupCharacterMap(cmap, uvs)
fb.setupGlyf(glyphs)
fb.setupHorizontalMetrics(metrics)
fb.setupHorizontalHeader(ascent=824, descent=200)
fb.setupNameTable(nameStrings)
fb.setupOS2()
fb.setupPost()
outPath = os.path.join(str(tmpdir), "test_uvs.ttf")
fb.save(outPath)
_verifyOutput(outPath, tables=["cmap"])
uvs = [
(0x0030, 0xFE00, "zero.slash"),
(0x0030, 0xFE01, "zero"), # should result in the exact same subtable data, due to cmap[0x0030] == "zero"
]
fb.setupCharacterMap(cmap, uvs)
fb.save(outPath)
_verifyOutput(outPath, tables=["cmap"])
class TTFBuilder:
@classmethod
def from_bdf_path(cls, path: Path):
with path.open() as f:
bdf = BdfFont.from_bdf(f)
return cls(bdf)
def __init__(self, bdf: BdfFont):
self.bdf = bdf
upm = 1000
self.fb = FontBuilder(unitsPerEm=upm)
self.ppp = upm / int(self.bdf.meta("SIZE")[0])
w, h, startx, starty = self.bdf.meta("FONTBOUNDINGBOX")
self.ascent = int(self.bdf.meta("FONT_ASCENT")[0])
self.descent = int(self.bdf.meta("FONT_DESCENT")[0])
self.w = int(w)
self.h = int(h)
self.startx = int(startx)
self.starty = int(starty)
def build(self, output_path: str):
glyph_names = {
k: glyph.meta("STARTCHAR")[0]
for k, glyph in self.bdf.glyphs.items() if k >= 0
}
ascent = round(self.ascent * self.ppp)
descent = round(self.descent * self.ppp)
self.fb.setupGlyphOrder(list(glyph_names.values()))
self.fb.setupCharacterMap(glyph_names)
advance_widths = {
name: int(self.bdf.glyphs[k].meta("SWIDTH")[0])
for k, name in glyph_names.items()
}
family_name = "CozetteVector"
style_name = "Regular"
version = get_version()
# scripts.sil.org/cms/scripts/page.php?site_id=nrsi&id=IWS-Chapter08
namestrings = {
"familyName": {
"en": family_name
},
"styleName": {
"en": style_name
},
"uniqueFontIdentifier": f"fontBuilder: {family_name}.{style_name}",
"fullName": family_name,
"psName": f"{family_name}-{style_name}",
"version": f"Version {version}",
"copyright": "(c) 2020 Slavfox",
"manufacturer": "Slavfox",
"designer": "Slavfox",
"description": "Programming bitmap font optimized for coziness",
"vendorURL": "https://github.com/slavfox",
"designerURL": "https://github.com/slavfox",
"licenseDescription": LICENSE_TEXT,
"licenseInfoURL": "https://opensource.org/licenses/MIT",
"sampleText": "A wizard’s job is to vex chumps quickly in fog.",
}
self.fb.setupGlyf({
name: self.bdf.glyphs[k].draw(self.ppp)
for k, name in glyph_names.items()
})
metrics = {
name: (w, self.fb.font["glyf"][name].xMin)
for name, w in advance_widths.items()
}
self.fb.setupHorizontalMetrics(metrics)
self.fb.setupHorizontalHeader(ascent=ascent, descent=-descent)
self.fb.setupNameTable(namestrings)
self.fb.setupOS2(
sTypoAscender=ascent,
usWinAscent=ascent,
usWinDescent=descent,
panose={
**_panoseDefaults,
"bFamilyType": 2, # Text and display
"bProportion": 9 # Monospace
})
self.fb.setupPost(isFixedPitch=1)
self.fb.save(output_path)
def test_build_var(tmpdir):
outPath = os.path.join(str(tmpdir), "test_var.ttf")
fb = FontBuilder(1024, isTTF=True)
fb.setupGlyphOrder([".notdef", ".null", "A", "a"])
fb.setupCharacterMap({65: "A", 97: "a"})
advanceWidths = {".notdef": 600, "A": 600, "a": 600, ".null": 600}
familyName = "HelloTestFont"
styleName = "TotallyNormal"
nameStrings = dict(familyName=dict(en="HelloTestFont", nl="HalloTestFont"),
styleName=dict(en="TotallyNormal", nl="TotaalNormaal"))
nameStrings['psName'] = familyName + "-" + styleName
pen = TTGlyphPen(None)
pen.moveTo((100, 0))
pen.lineTo((100, 400))
pen.lineTo((500, 400))
pen.lineTo((500, 000))
pen.closePath()
glyph = pen.glyph()
pen = TTGlyphPen(None)
emptyGlyph = pen.glyph()
glyphs = {
".notdef": emptyGlyph,
"A": glyph,
"a": glyph,
".null": emptyGlyph
}
fb.setupGlyf(glyphs)
metrics = {}
glyphTable = fb.font["glyf"]
for gn, advanceWidth in advanceWidths.items():
metrics[gn] = (advanceWidth, glyphTable[gn].xMin)
fb.setupHorizontalMetrics(metrics)
fb.setupHorizontalHeader(ascent=824, descent=200)
fb.setupNameTable(nameStrings)
axes = [
('LEFT', 0, 0, 100, "Left"),
('RGHT', 0, 0, 100, "Right"),
('UPPP', 0, 0, 100, "Up"),
('DOWN', 0, 0, 100, "Down"),
]
instances = [
dict(location=dict(LEFT=0, RGHT=0, UPPP=0, DOWN=0),
stylename="TotallyNormal"),
dict(location=dict(LEFT=0, RGHT=100, UPPP=100, DOWN=0),
stylename="Right Up"),
]
fb.setupFvar(axes, instances)
variations = {}
# Four (x, y) pairs and four phantom points:
leftDeltas = [(-200, 0), (-200, 0), (0, 0), (0, 0), None, None, None, None]
rightDeltas = [(0, 0), (0, 0), (200, 0), (200, 0), None, None, None, None]
upDeltas = [(0, 0), (0, 200), (0, 200), (0, 0), None, None, None, None]
downDeltas = [(0, -200), (0, 0), (0, 0), (0, -200), None, None, None, None]
variations['a'] = [
TupleVariation(dict(RGHT=(0, 1, 1)), rightDeltas),
TupleVariation(dict(LEFT=(0, 1, 1)), leftDeltas),
TupleVariation(dict(UPPP=(0, 1, 1)), upDeltas),
TupleVariation(dict(DOWN=(0, 1, 1)), downDeltas),
]
fb.setupGvar(variations)
fb.setupOS2()
fb.setupPost()
fb.setupDummyDSIG()
fb.save(outPath)
_verifyOutput(outPath)
def build(instance, opts, glyphOrder):
font = instance.parent
master = font.masters[0]
advanceWidths = {}
characterMap = {}
charStrings = {}
colorLayers = {}
for name in glyphOrder:
glyph = font.glyphs[name]
if not glyph.export:
continue
for layer in glyph.layers:
if "colorPalette" in layer.attributes:
index = layer.attributes["colorPalette"]
if name not in colorLayers:
colorLayers[name] = []
if layer.layerId == layer.associatedMasterId: # master layer
colorLayers[name].append((name, int(index)))
else:
assert False, "can’t handle non-master color layers"
if glyph.unicode:
characterMap[int(glyph.unicode, 16)] = name
layer = getLayer(glyph, instance)
charStrings[name] = draw(layer, instance).getCharString()
advanceWidths[name] = layer.width
# XXX
glyphOrder.pop(glyphOrder.index(".notdef"))
glyphOrder.pop(glyphOrder.index("space"))
glyphOrder.insert(0, ".notdef")
glyphOrder.insert(1, "space")
version = float(opts.version)
vendor = get_property(font, "vendorID")
names = {
"copyright": font.copyright,
"familyName": instance.familyName,
"styleName": instance.name,
"uniqueFontIdentifier": f"{version:.03f};{vendor};{instance.fontName}",
"fullName": instance.fullName,
"version": f"Version {version:.03f}",
"psName": instance.fontName,
"manufacturer": font.manufacturer,
"designer": font.designer,
"vendorURL": font.manufacturerURL,
"designerURL": font.designerURL,
"licenseDescription": get_property(font, "licenses"),
"licenseInfoURL": get_property(font, "licenseURL"),
"sampleText": get_property(font, "sampleTexts"),
}
fb = FontBuilder(font.upm, isTTF=False)
date = font.date.replace(tzinfo=datetime.timezone.utc)
stat = opts.glyphs.stat()
fb.updateHead(
fontRevision=version,
created=int(date.timestamp()) - mac_epoch_diff,
modified=int(stat.st_mtime) - mac_epoch_diff,
)
fb.setupGlyphOrder(glyphOrder)
fb.setupCharacterMap(characterMap)
fb.setupNameTable(names, mac=False)
fb.setupHorizontalHeader(
ascent=master.ascender,
descent=master.descender,
lineGap=master.customParameters["hheaLineGap"],
)
if opts.debug:
fb.setupCFF(names["psName"], {}, charStrings, {})
fb.font["CFF "].compile(fb.font)
else:
fb.setupCFF2(charStrings)
metrics = {}
for name, width in advanceWidths.items():
bounds = charStrings[name].calcBounds(None) or [0]
metrics[name] = (width, bounds[0])
fb.setupHorizontalMetrics(metrics)
fb.setupPost(
underlinePosition=master.customParameters["underlinePosition"],
underlineThickness=master.customParameters["underlineThickness"],
)
# Compile to get font bbox
fb.font["head"].compile(fb.font)
codePages = [
CODEPAGE_RANGES[v] for v in font.customParameters["codePageRanges"]
]
fb.setupOS2(
version=4,
sTypoAscender=master.ascender,
sTypoDescender=master.descender,
sTypoLineGap=master.customParameters["typoLineGap"],
usWinAscent=fb.font["head"].yMax,
usWinDescent=-fb.font["head"].yMin,
sxHeight=master.xHeight,
sCapHeight=master.capHeight,
achVendID=vendor,
fsType=calcBits(font.customParameters["fsType"], 0, 16),
fsSelection=calcFsSelection(instance),
ulUnicodeRange1=calcBits(font.customParameters["unicodeRanges"], 0,
32),
ulCodePageRange1=calcBits(codePages, 0, 32),
)
fea = makeFeatures(instance, master, opts, glyphOrder)
fb.addOpenTypeFeatures(fea)
palettes = master.customParameters["Color Palettes"]
palettes = [[tuple(v / 255 for v in c) for c in p] for p in palettes]
fb.setupCPAL(palettes)
fb.setupCOLR(colorLayers)
instance.font = fb.font
if opts.debug:
fb.font.save(f"{instance.fontName}.otf")
return fb.font
def build(instance, opts):
font = instance.parent
source = font.masters[0]
fea, marks = makeFeatures(instance, source)
glyphOrder = []
advanceWidths = {}
characterMap = {}
charStrings = {}
source.blueValues = []
source.otherBlues = []
for zone in sorted(source.alignmentZones):
pos = zone.position
size = zone.size
vals = sorted((pos, pos + size))
if pos == 0 or size >= 0:
source.blueValues.extend(vals)
else:
source.otherBlues.extend(vals)
fontinfo = f"""
FontName {instance.fontName}
OrigEmSqUnits {font.upm}
DominantV {source.verticalStems}
DominantH {source.horizontalStems}
BaselineOvershoot {source.blueValues[0]}
BaselineYCoord {source.blueValues[1]}
LcHeight {source.blueValues[2]}
LcOvershoot {source.blueValues[3] - source.blueValues[2]}
CapHeight {source.blueValues[4]}
CapOvershoot {source.blueValues[5] - source.blueValues[4]}
AscenderHeight {source.blueValues[6]}
AscenderOvershoot {source.blueValues[7] - source.blueValues[6]}
Baseline5 {source.otherBlues[1]}
Baseline5Overshoot {source.otherBlues[0] - source.otherBlues[1]}
FlexOK true
BlueFuzz 1
"""
layerSet = {g.name: g.layers[source.id] for g in font.glyphs}
for glyph in font.glyphs:
if not glyph.export:
continue
name = glyph.name
glyphOrder.append(name)
for code in glyph.unicodes:
characterMap[int(code, 16)] = name
layer = glyph.layers[source.id]
width = 0 if name in marks else layer.width
# Draw glyph and remove overlaps.
path = Path()
layer.draw(DecomposePathPen(path, layerSet=layerSet))
path.simplify(fix_winding=True, keep_starting_points=True)
# Autohint.
pen = BezPen(None, True)
path.draw(pen)
bez = "\n".join(["% " + name, "sc", *pen.bez, "ed", ""])
hinted = hint_bez_glyph(fontinfo, bez)
program = [width] + convertBezToT2(hinted)
# Build CharString.
charStrings[name] = T2CharString(program=program)
advanceWidths[name] = width
# Make sure .notdef is glyph index 0.
glyphOrder.pop(glyphOrder.index(".notdef"))
glyphOrder.insert(0, ".notdef")
version = float(opts.version)
vendor = font.customParameters["vendorID"]
names = {
"copyright": font.copyright,
"familyName": instance.familyName,
"styleName": instance.name,
"uniqueFontIdentifier": f"{version:.03f};{vendor};{instance.fontName}",
"fullName": instance.fullName,
"version": f"Version {version:.03f}",
"psName": instance.fontName,
"manufacturer": font.manufacturer,
"designer": font.designer,
"description": font.customParameters["description"],
"vendorURL": font.manufacturerURL,
"designerURL": font.designerURL,
"licenseDescription": font.customParameters["license"],
"licenseInfoURL": font.customParameters["licenseURL"],
"sampleText": font.customParameters["sampleText"],
}
date = int(font.date.timestamp()) - epoch_diff
fb = FontBuilder(font.upm, isTTF=False)
fb.updateHead(fontRevision=version, created=date, modified=date)
fb.setupGlyphOrder(glyphOrder)
fb.setupCharacterMap(characterMap)
fb.setupNameTable(names, mac=False)
fb.setupHorizontalHeader(
ascent=source.ascender,
descent=source.descender,
lineGap=source.customParameters["typoLineGap"],
)
privateDict = {
"BlueValues": source.blueValues,
"OtherBlues": source.otherBlues,
"StemSnapH": source.horizontalStems,
"StemSnapV": source.verticalStems,
"StdHW": source.horizontalStems[0],
"StdVW": source.verticalStems[0],
}
fontInfo = {
"FullName": names["fullName"],
"Notice": names["copyright"].replace("©", "\(c\)"),
"version": f"{version:07.03f}",
"Weight": instance.name,
}
fb.setupCFF(names["psName"], fontInfo, charStrings, privateDict)
metrics = {}
for i, (name, width) in enumerate(advanceWidths.items()):
bounds = charStrings[name].calcBounds(None) or [0]
metrics[name] = (width, bounds[0])
fb.setupHorizontalMetrics(metrics)
codePages = [
CODEPAGE_RANGES[v] for v in font.customParameters["codePageRanges"]
]
fb.setupOS2(
version=4,
sTypoAscender=source.ascender,
sTypoDescender=source.descender,
sTypoLineGap=source.customParameters["typoLineGap"],
usWinAscent=source.ascender,
usWinDescent=-source.descender,
sxHeight=source.xHeight,
sCapHeight=source.capHeight,
achVendID=vendor,
fsType=calcBits(font.customParameters["fsType"], 0, 16),
fsSelection=calcFsSelection(instance),
ulUnicodeRange1=calcBits(font.customParameters["unicodeRanges"], 0,
32),
ulCodePageRange1=calcBits(codePages, 0, 32),
)
ut = int(source.customParameters["underlineThickness"])
up = int(source.customParameters["underlinePosition"])
fb.setupPost(underlineThickness=ut, underlinePosition=up + ut // 2)
meta = newTable("meta")
meta.data = {"dlng": "Arab", "slng": "Arab"}
fb.font["meta"] = meta
fb.addOpenTypeFeatures(fea)
return fb.font
def _save_ttfont(bbf):
fb = FontBuilder(bbf.info.unitsPerEm, isTTF=True)
fb.setupGlyphOrder(bbf.lib.glyphOrder)
bbf._build_maps()
fb.setupCharacterMap(bbf._unicodemap)
glyf = {}
metrics = {}
for i in [1, 2]:
for g in bbf:
if i == 1 and g.components:
continue
if i == 2 and not g.components:
continue
pen = Cu2QuPen(TTGlyphPen(glyf), bbf.info.unitsPerEm / 1000)
try:
g.draw(pen)
glyf[g.name] = pen.pen.glyph()
except Exception as e:
pen = Cu2QuPen(TTGlyphPen(glyf), bbf.info.unitsPerEm / 1000)
glyf[g.name] = pen.pen.glyph()
pass
bounds = g.bounds
xMin = 0
if bounds:
xMin = bounds[0]
metrics[g.name] = (g.width, xMin)
versionMajor = bbf.info.versionMajor or 1
versionMinor = bbf.info.versionMinor or 0
fb.updateHead(
fontRevision=versionMajor + versionMinor / 10**len(str(versionMinor)),
created=_ufo_date_to_opentime(bbf.info.openTypeHeadCreated),
lowestRecPPEM=bbf.info.openTypeHeadLowestRecPPEM
or fb.font["head"].lowestRecPPEM,
)
fb.setupGlyf(glyf)
fb.setupHorizontalMetrics(metrics)
fb.setupHorizontalHeader(
ascent=int(bbf.info.openTypeHheaAscender or bbf.info.ascender or 0),
descent=int(bbf.info.openTypeHheaDescender or bbf.info.descender or 0),
)
os2 = {
"sTypoAscender":
bbf.info.openTypeOS2TypoAscender or bbf.info.ascender or 0,
"sTypoDescender":
bbf.info.openTypeOS2TypoDescender or bbf.info.descender or 0,
"sxHeight":
bbf.info.xHeight,
"sCapHeight":
bbf.info.capHeight,
}
for k in [
"usWidthClass",
"usWeightClass",
"sTypoLineGap",
"usWinAscent",
"usWinDescent",
"ySubscriptXSize",
"ySubscriptYSize",
"ySubscriptXOffset",
"ySubscriptYOffset",
"ySuperscriptXSize",
"ySuperscriptYSize",
"ySuperscriptXOffset",
"ySuperscriptYOffset",
"yStrikeoutSize",
"yStrikeoutPosition",
]:
infokey = k
while not infokey[0].isupper():
infokey = infokey[1:]
infokey = "openTypeOS2" + infokey
if hasattr(bbf.info, infokey):
if getattr(bbf.info, infokey):
os2[k] = getattr(bbf.info, infokey)
fb.setupOS2(**os2)
# Name tables
nameStrings = dict(
familyName=dict(en=bbf.info.familyName),
styleName=dict(en=bbf.info.styleName),
fullName=f"{bbf.info.familyName} {bbf.info.styleName}",
psName=bbf.info.postscriptFontName,
version="Version " +
str(bbf.info.versionMajor +
bbf.info.versionMinor / 10**len(str(bbf.info.versionMinor))),
)
if not nameStrings["psName"]:
del nameStrings["psName"]
fb.setupNameTable(nameStrings)
# Kerning
# Features
fb.setupPost(
underlinePosition=(bbf.info.postscriptUnderlinePosition or 0),
underlineThickness=(bbf.info.postscriptUnderlineThickness or 0),
)
return fb.font
def build(instance, opts):
font = instance.parent
master = font.masters[0]
glyphOrder = []
advanceWidths = {}
characterMap = {}
charStrings = {}
colorLayers = {}
for glyph in font.glyphs:
if not glyph.export:
continue
name = glyph.name
for layer in glyph.layers:
if layer.name.startswith("Color "):
_, index = layer.name.split(" ")
if name not in colorLayers:
colorLayers[name] = []
colorLayers[name].append((name, int(index)))
glyphOrder.append(name)
if glyph.unicode:
characterMap[int(glyph.unicode, 16)] = name
layer = getLayer(glyph, instance)
charStrings[name] = draw(layer, instance).getCharString()
advanceWidths[name] = layer.width
# XXX
glyphOrder.pop(glyphOrder.index(".notdef"))
glyphOrder.pop(glyphOrder.index("space"))
glyphOrder.insert(0, ".notdef")
glyphOrder.insert(1, "space")
version = float(opts.version)
vendor = font.customParameters["vendorID"]
names = {
"copyright": font.copyright,
"familyName": instance.familyName,
"styleName": instance.name,
"uniqueFontIdentifier": f"{version:.03f};{vendor};{instance.fontName}",
"fullName": instance.fullName,
"version": f"Version {version:.03f}",
"psName": instance.fontName,
"manufacturer": font.manufacturer,
"designer": font.designer,
"vendorURL": font.manufacturerURL,
"designerURL": font.designerURL,
"licenseDescription": font.customParameters["license"],
"licenseInfoURL": font.customParameters["licenseURL"],
"sampleText": font.customParameters["sampleText"],
}
fb = FontBuilder(font.upm, isTTF=False)
fb.updateHead(fontRevision=version)
fb.setupGlyphOrder(glyphOrder)
fb.setupCharacterMap(characterMap)
fb.setupNameTable(names, mac=False)
fb.setupHorizontalHeader(ascent=master.ascender,
descent=master.descender,
lineGap=master.customParameters['hheaLineGap'])
if opts.debug:
fb.setupCFF(names["psName"], {}, charStrings, {})
else:
fb.setupCFF2(charStrings)
metrics = {}
for name, width in advanceWidths.items():
bounds = charStrings[name].calcBounds(None) or [0]
metrics[name] = (width, bounds[0])
fb.setupHorizontalMetrics(metrics)
fb.setupPost()
fea = makeFeatures(instance, master, opts)
fb.addOpenTypeFeatures(fea)
palettes = master.customParameters["Color Palettes"]
palettes = [[tuple(int(v) / 255 for v in c.split(",")) for c in p]
for p in palettes]
fb.setupCPAL(palettes)
fb.setupCOLR(colorLayers)
instance.font = fb.font
axes = [
instance.weightValue,
instance.widthValue,
instance.customValue,
instance.customValue1,
instance.customValue2,
instance.customValue3,
]
instance.axes = {}
for i, axis in enumerate(font.customParameters["Axes"]):
instance.axes[axis["Tag"]] = axes[i]
if opts.debug:
fb.font.save(f"{instance.fontName}.otf")
fb.font.saveXML(f"{instance.fontName}.ttx")
return fb.font
def test_subset_single_pos_format():
fb = FontBuilder(unitsPerEm=1000)
fb.setupGlyphOrder([".notdef", "a", "b", "c"])
fb.setupCharacterMap({ord("a"): "a", ord("b"): "b", ord("c"): "c"})
fb.setupNameTable({
"familyName": "TestSingePosFormat",
"styleName": "Regular"
})
fb.setupPost()
fb.addOpenTypeFeatures("""
feature kern {
pos a -50;
pos b -40;
pos c -50;
} kern;
""")
buf = io.BytesIO()
fb.save(buf)
buf.seek(0)
font = TTFont(buf)
# The input font has a SinglePos Format 2 subtable where each glyph has
# different ValueRecords
assert getXML(font["GPOS"].table.LookupList.Lookup[0].toXML, font) == [
'<Lookup>',
' <LookupType value="1"/>',
' <LookupFlag value="0"/>',
' <!-- SubTableCount=1 -->',
' <SinglePos index="0" Format="2">',
' <Coverage Format="1">',
' <Glyph value="a"/>',
' <Glyph value="b"/>',
' <Glyph value="c"/>',
' </Coverage>',
' <ValueFormat value="4"/>',
' <!-- ValueCount=3 -->',
' <Value index="0" XAdvance="-50"/>',
' <Value index="1" XAdvance="-40"/>',
' <Value index="2" XAdvance="-50"/>',
' </SinglePos>',
'</Lookup>',
]
options = subset.Options()
subsetter = subset.Subsetter(options)
subsetter.populate(unicodes=[ord("a"), ord("c")])
subsetter.subset(font)
# All the subsetted glyphs from the original SinglePos Format2 subtable
# now have the same ValueRecord, so we use a more compact Format 1 subtable.
assert getXML(font["GPOS"].table.LookupList.Lookup[0].toXML, font) == [
'<Lookup>',
' <LookupType value="1"/>',
' <LookupFlag value="0"/>',
' <!-- SubTableCount=1 -->',
' <SinglePos index="0" Format="1">',
' <Coverage Format="1">',
' <Glyph value="a"/>',
' <Glyph value="c"/>',
' </Coverage>',
' <ValueFormat value="4"/>',
' <Value XAdvance="-50"/>',
' </SinglePos>',
'</Lookup>',
]
def colrv1_path(tmp_path):
base_glyph_names = ["uni%04X" % i for i in range(0xE000, 0xE000 + 10)]
layer_glyph_names = ["glyph%05d" % i for i in range(10, 20)]
glyph_order = [".notdef"] + base_glyph_names + layer_glyph_names
pen = TTGlyphPen(glyphSet=None)
pen.moveTo((0, 0))
pen.lineTo((0, 500))
pen.lineTo((500, 500))
pen.lineTo((500, 0))
pen.closePath()
glyph = pen.glyph()
glyphs = {g: glyph for g in glyph_order}
fb = FontBuilder(unitsPerEm=1024, isTTF=True)
fb.setupGlyphOrder(glyph_order)
fb.setupCharacterMap(
{int(name[3:], 16): name
for name in base_glyph_names})
fb.setupGlyf(glyphs)
fb.setupHorizontalMetrics({g: (500, 0) for g in glyph_order})
fb.setupHorizontalHeader()
fb.setupOS2()
fb.setupPost()
fb.setupNameTable({"familyName": "TestCOLRv1", "styleName": "Regular"})
fb.setupCOLR(
{
"uniE000": (
ot.PaintFormat.PaintColrLayers,
[
{
"Format": ot.PaintFormat.PaintGlyph,
"Paint": (ot.PaintFormat.PaintSolid, 0),
"Glyph": "glyph00010",
},
{
"Format": ot.PaintFormat.PaintGlyph,
"Paint": (ot.PaintFormat.PaintSolid, (2, 0.3)),
"Glyph": "glyph00011",
},
],
),
"uniE001": (
ot.PaintFormat.PaintColrLayers,
[
{
"Format": ot.PaintFormat.PaintTransform,
"Paint": {
"Format": ot.PaintFormat.PaintGlyph,
"Paint": {
"Format": ot.PaintFormat.PaintRadialGradient,
"x0": 250,
"y0": 250,
"r0": 250,
"x1": 200,
"y1": 200,
"r1": 0,
"ColorLine": {
"ColorStop": [(0.0, 1), (1.0, 2)],
"Extend": "repeat",
},
},
"Glyph": "glyph00012",
},
"Transform": (0.7071, 0.7071, -0.7071, 0.7071, 0, 0),
},
{
"Format": ot.PaintFormat.PaintGlyph,
"Paint": (ot.PaintFormat.PaintSolid, (1, 0.5)),
"Glyph": "glyph00013",
},
],
),
"uniE002": (
ot.PaintFormat.PaintColrLayers,
[
{
"Format": ot.PaintFormat.PaintGlyph,
"Paint": {
"Format": ot.PaintFormat.PaintLinearGradient,
"x0": 0,
"y0": 0,
"x1": 500,
"y1": 500,
"x2": -500,
"y2": 500,
"ColorLine": {
"ColorStop": [(0.0, 1), (1.0, 2)]
},
},
"Glyph": "glyph00014",
},
{
"Format": ot.PaintFormat.PaintTransform,
"Paint": {
"Format": ot.PaintFormat.PaintGlyph,
"Paint": (ot.PaintFormat.PaintSolid, 1),
"Glyph": "glyph00015",
},
"Transform": (1, 0, 0, 1, 400, 400),
},
],
),
"uniE003": {
"Format": ot.PaintFormat.PaintRotate,
"Paint": {
"Format": ot.PaintFormat.PaintColrGlyph,
"Glyph": "uniE001",
},
"angle": 45,
"centerX": 250,
"centerY": 250,
},
"uniE004": [
("glyph00016", 1),
("glyph00017", 2),
],
}, )
fb.setupCPAL(
[
[
(1.0, 0.0, 0.0, 1.0), # red
(0.0, 1.0, 0.0, 1.0), # green
(0.0, 0.0, 1.0, 1.0), # blue
],
], )
output_path = tmp_path / "TestCOLRv1.ttf"
fb.save(output_path)
return output_path
def build(instance, isTTF, version):
font = instance.parent
source = font.masters[0]
fea, marks = makeFeatures(instance, source)
source.blueValues = []
source.otherBlues = []
for zone in sorted(source.alignmentZones):
pos = zone.position
size = zone.size
vals = sorted((pos, pos + size))
if pos == 0 or size >= 0:
source.blueValues.extend(vals)
else:
source.otherBlues.extend(vals)
fontinfo = f"""
FontName {instance.fontName}
OrigEmSqUnits {font.upm}
DominantV {source.verticalStems}
DominantH {source.horizontalStems}
BaselineOvershoot {source.blueValues[0]}
BaselineYCoord {source.blueValues[1]}
LcHeight {source.blueValues[2]}
LcOvershoot {source.blueValues[3] - source.blueValues[2]}
CapHeight {source.blueValues[4]}
CapOvershoot {source.blueValues[5] - source.blueValues[4]}
AscenderHeight {source.blueValues[6]}
AscenderOvershoot {source.blueValues[7] - source.blueValues[6]}
Baseline5 {source.otherBlues[1]}
Baseline5Overshoot {source.otherBlues[0] - source.otherBlues[1]}
FlexOK true
BlueFuzz 1
"""
characterMap = {}
glyphs = {}
metrics = {}
layerSet = {g.name: g.layers[source.id] for g in font.glyphs}
if isTTF:
from fontTools.pens.cu2quPen import Cu2QuPen
from fontTools.pens.recordingPen import RecordingPen
for glyph in font.glyphs:
layer = glyph.layers[source.id]
pen = RecordingPen()
layer.draw(pen)
layer.paths = []
layer.components = []
pen.replay(Cu2QuPen(layer.getPen(), 1.0, reverse_direction=True))
for glyph in font.glyphs:
if not glyph.export and not isTTF:
continue
name = glyph.name
for code in glyph.unicodes:
characterMap[int(code, 16)] = name
layer = glyph.layers[source.id]
width = 0 if name in marks else layer.width
pen = BoundsPen(layerSet)
layer.draw(pen)
metrics[name] = (width, pen.bounds[0] if pen.bounds else 0)
if isTTF:
from fontTools.pens.ttGlyphPen import TTGlyphPen
pen = TTGlyphPen(layerSet)
if layer.paths:
# Decompose and remove overlaps.
path = Path()
layer.draw(DecomposePathPen(path, layerSet))
path.simplify(fix_winding=True, keep_starting_points=True)
path.draw(pen)
else:
# Composite-only glyph, no need to decompose.
layer.draw(FlattenComponentsPen(pen, layerSet))
glyphs[name] = pen.glyph()
else:
from fontTools.pens.t2CharStringPen import T2CharStringPen
# Draw glyph and remove overlaps.
path = Path()
layer.draw(DecomposePathPen(path, layerSet))
path.simplify(fix_winding=True, keep_starting_points=True)
# Build CharString.
pen = T2CharStringPen(width, None)
path.draw(pen)
glyphs[name] = pen.getCharString()
vendor = font.customParameters["vendorID"]
names = {
"copyright": font.copyright,
"familyName": instance.familyName,
"styleName": instance.name,
"uniqueFontIdentifier": f"{version};{vendor};{instance.fontName}",
"fullName": instance.fullName,
"version": f"Version {version}",
"psName": instance.fontName,
"manufacturer": font.manufacturer,
"designer": font.designer,
"description": font.customParameters["description"],
"vendorURL": font.manufacturerURL,
"designerURL": font.designerURL,
"licenseDescription": font.customParameters["license"],
"licenseInfoURL": font.customParameters["licenseURL"],
"sampleText": font.customParameters["sampleText"],
}
date = int(font.date.timestamp()) - epoch_diff
fb = FontBuilder(font.upm, isTTF=isTTF)
fb.updateHead(fontRevision=version, created=date, modified=date)
fb.setupGlyphOrder(font.glyphOrder)
fb.setupCharacterMap(characterMap)
fb.setupNameTable(names, mac=False)
fb.setupHorizontalHeader(
ascent=source.ascender,
descent=source.descender,
lineGap=source.customParameters["typoLineGap"],
)
if isTTF:
fb.setupGlyf(glyphs)
else:
privateDict = {
"BlueValues": source.blueValues,
"OtherBlues": source.otherBlues,
"StemSnapH": source.horizontalStems,
"StemSnapV": source.verticalStems,
"StdHW": source.horizontalStems[0],
"StdVW": source.verticalStems[0],
}
fontInfo = {
"FullName": names["fullName"],
"Notice": names["copyright"].replace("©", "\(c\)"),
"version": f"{version}",
"Weight": instance.name,
}
fb.setupCFF(names["psName"], fontInfo, glyphs, privateDict)
fb.setupHorizontalMetrics(metrics)
codePages = [CODEPAGE_RANGES[v] for v in font.customParameters["codePageRanges"]]
fb.setupOS2(
version=4,
sTypoAscender=source.ascender,
sTypoDescender=source.descender,
sTypoLineGap=source.customParameters["typoLineGap"],
usWinAscent=source.ascender,
usWinDescent=-source.descender,
sxHeight=source.xHeight,
sCapHeight=source.capHeight,
achVendID=vendor,
fsType=calcBits(font.customParameters["fsType"], 0, 16),
fsSelection=calcFsSelection(instance),
ulUnicodeRange1=calcBits(font.customParameters["unicodeRanges"], 0, 32),
ulCodePageRange1=calcBits(codePages, 0, 32),
)
underlineThickness = int(source.customParameters["underlineThickness"])
underlinePosition = int(source.customParameters["underlinePosition"])
fb.setupPost(
keepGlyphNames=False,
underlineThickness=underlineThickness,
underlinePosition=underlinePosition + underlineThickness // 2,
)
fb.font["meta"] = meta = newTable("meta")
meta.data = {"dlng": "Arab", "slng": "Arab"}
fb.addOpenTypeFeatures(fea)
if isTTF:
from fontTools.ttLib.tables import ttProgram
fb.setupDummyDSIG()
fb.font["gasp"] = gasp = newTable("gasp")
gasp.gaspRange = {0xFFFF: 15}
fb.font["prep"] = prep = newTable("prep")
prep.program = ttProgram.Program()
assembly = ["PUSHW[]", "511", "SCANCTRL[]", "PUSHB[]", "4", "SCANTYPE[]"]
prep.program.fromAssembly(assembly)
else:
from cffsubr import subroutinize
subroutinize(fb.font)
return fb.font
def test_build_var(tmpdir):
outPath = os.path.join(str(tmpdir), "test_var.ttf")
fb = FontBuilder(1024, isTTF=True)
fb.setupGlyphOrder([".notdef", ".null", "A", "a"])
fb.setupCharacterMap({65: "A", 97: "a"})
advanceWidths = {".notdef": 600, "A": 600, "a": 600, ".null": 600}
familyName = "HelloTestFont"
styleName = "TotallyNormal"
nameStrings = dict(familyName=dict(en="HelloTestFont", nl="HalloTestFont"),
styleName=dict(en="TotallyNormal", nl="TotaalNormaal"))
nameStrings['psName'] = familyName + "-" + styleName
pen = TTGlyphPen(None)
pen.moveTo((100, 0))
pen.lineTo((100, 400))
pen.lineTo((500, 400))
pen.lineTo((500, 000))
pen.closePath()
glyph = pen.glyph()
pen = TTGlyphPen(None)
emptyGlyph = pen.glyph()
glyphs = {".notdef": emptyGlyph, "A": glyph, "a": glyph, ".null": emptyGlyph}
fb.setupGlyf(glyphs)
metrics = {}
glyphTable = fb.font["glyf"]
for gn, advanceWidth in advanceWidths.items():
metrics[gn] = (advanceWidth, glyphTable[gn].xMin)
fb.setupHorizontalMetrics(metrics)
fb.setupHorizontalHeader(ascent=824, descent=200)
fb.setupNameTable(nameStrings)
axes = [
('LEFT', 0, 0, 100, "Left"),
('RGHT', 0, 0, 100, "Right"),
('UPPP', 0, 0, 100, "Up"),
('DOWN', 0, 0, 100, "Down"),
]
instances = [
dict(location=dict(LEFT=0, RGHT=0, UPPP=0, DOWN=0), stylename="TotallyNormal"),
dict(location=dict(LEFT=0, RGHT=100, UPPP=100, DOWN=0), stylename="Right Up"),
]
fb.setupFvar(axes, instances)
variations = {}
# Four (x, y) pairs and four phantom points:
leftDeltas = [(-200, 0), (-200, 0), (0, 0), (0, 0), None, None, None, None]
rightDeltas = [(0, 0), (0, 0), (200, 0), (200, 0), None, None, None, None]
upDeltas = [(0, 0), (0, 200), (0, 200), (0, 0), None, None, None, None]
downDeltas = [(0, -200), (0, 0), (0, 0), (0, -200), None, None, None, None]
variations['a'] = [
TupleVariation(dict(RGHT=(0, 1, 1)), rightDeltas),
TupleVariation(dict(LEFT=(0, 1, 1)), leftDeltas),
TupleVariation(dict(UPPP=(0, 1, 1)), upDeltas),
TupleVariation(dict(DOWN=(0, 1, 1)), downDeltas),
]
fb.setupGvar(variations)
fb.setupOS2()
fb.setupPost()
fb.setupDummyDSIG()
fb.save(outPath)
_verifyOutput(outPath)
def make_font(file_paths, out_dir, revision, gsub_path, gpos_path, uvs_lst):
cmap, gorder, validated_fpaths = {}, deque(), []
# build glyph order
for fpath in file_paths:
# derive glyph name from file name
gname = os.path.splitext(os.path.basename(fpath))[0] # trim extension
# validate glyph name
if not glyph_name_is_valid(gname, fpath):
continue
# skip any duplicates and 'space'
if gname in gorder or gname == 'space':
log.warning("Skipped file '{}'. The glyph name derived from it "
"is either a duplicate or 'space'.".format(fpath))
continue
# limit the length of glyph name to 31 chars
if len(gname) > 31:
num = 0
trimmed_gname = get_trimmed_glyph_name(gname, num)
while trimmed_gname in gorder:
num += 1
trimmed_gname = get_trimmed_glyph_name(trimmed_gname, num)
gorder.append(trimmed_gname)
log.warning("Glyph name '{}' was trimmed to 31 characters: "
"'{}'".format(gname, trimmed_gname))
else:
gorder.append(gname)
validated_fpaths.append(fpath)
# add to cmap
if RE_UNICODE.match(gname):
uni_int = int(gname[1:], 16) # trim leading 'u'
cmap[uni_int] = gname
fb = FontBuilder(UPM, isTTF=False)
fb.font['head'].fontRevision = float(revision)
fb.font['head'].lowestRecPPEM = 12
cs_dict = {}
cs_cache = {}
for i, svg_file_path in enumerate(validated_fpaths):
svg_file_realpath = os.path.realpath(svg_file_path)
if svg_file_realpath not in cs_cache:
svg_size = get_svg_size(svg_file_realpath)
if svg_size is None:
cs_dict[gorder[i]] = SPACE_CHARSTRING
continue
pen = T2CharStringPen(EMOJI_H_ADV, None)
svg = SVGPath(svg_file_realpath,
transform=(EMOJI_SIZE / svg_size, 0, 0,
-EMOJI_SIZE / svg_size,
(EMOJI_H_ADV * .5) - (EMOJI_SIZE * .5),
EMOJI_H_ADV * ABOVE_BASELINE))
svg.draw(pen)
cs = pen.getCharString()
cs_cache[svg_file_realpath] = cs
else:
cs = cs_cache.get(svg_file_realpath)
cs_dict[gorder[i]] = cs
# add '.notdef', 'space' and zero-width joiner
pen = T2CharStringPen(EMOJI_H_ADV, None)
draw_notdef(pen)
gorder.extendleft(reversed(['.notdef', 'space', 'ZWJ']))
cs_dict.update({
'.notdef': pen.getCharString(),
'space': SPACE_CHARSTRING,
'ZWJ': SPACE_CHARSTRING,
})
cmap.update({
32: 'space', # U+0020
160: 'space', # U+00A0
8205: 'ZWJ', # U+200D
})
# add TAG LATIN LETTER glyphs and mappings
for cdpt in TAG_LAT_LETTR:
tag_gname = f'u{cdpt}'
gorder.append(tag_gname)
cs_dict[tag_gname] = SPACE_CHARSTRING
cmap[int(cdpt, 16)] = tag_gname
fb.setupGlyphOrder(list(gorder)) # parts of FontTools require a list
fb.setupCharacterMap(cmap, uvs=uvs_lst)
fb.setupCFF(
PS_NAME, {
'version': revision,
'Notice': TRADEMARK,
'Copyright': COPYRIGHT,
'FullName': FULL_NAME,
'FamilyName': FAMILY_NAME,
'Weight': STYLE_NAME
}, cs_dict, {})
glyphs_bearings = {}
for gname, cs in cs_dict.items():
gbbox = cs.calcBounds(None)
if gbbox:
xmin, ymin, _, ymax = gbbox
if ymax > ASCENT:
log.warning("Top of glyph '{}' may get clipped. "
"Glyph's ymax={}; Font's ascent={}".format(
gname, ymax, ASCENT))
if ymin < DESCENT:
log.warning("Bottom of glyph '{}' may get clipped. "
"Glyph's ymin={}; Font's descent={}".format(
gname, ymin, DESCENT))
lsb = xmin
tsb = EMOJI_V_ADV - ymax - EMOJI_H_ADV * (1 - ABOVE_BASELINE)
glyphs_bearings[gname] = (lsb, tsb)
else:
glyphs_bearings[gname] = (0, 0)
h_metrics = {}
v_metrics = {}
for gname in gorder:
h_metrics[gname] = (EMOJI_H_ADV, glyphs_bearings[gname][0])
v_metrics[gname] = (EMOJI_V_ADV, glyphs_bearings[gname][1])
fb.setupHorizontalMetrics(h_metrics)
fb.setupVerticalMetrics(v_metrics)
fb.setupHorizontalHeader(ascent=ASCENT, descent=DESCENT)
v_ascent = EMOJI_H_ADV // 2
v_descent = EMOJI_H_ADV - v_ascent
fb.setupVerticalHeader(ascent=v_ascent,
descent=-v_descent,
caretSlopeRun=1)
VERSION_STRING = 'Version {};{}'.format(revision, VENDOR)
UNIQUE_ID = '{};{};{}'.format(revision, VENDOR, PS_NAME)
name_strings = dict(
copyright=COPYRIGHT, # ID 0
familyName=FAMILY_NAME, # ID 1
styleName=STYLE_NAME, # ID 2
uniqueFontIdentifier=UNIQUE_ID, # ID 3
fullName=FULL_NAME, # ID 4
version=VERSION_STRING, # ID 5
psName=PS_NAME, # ID 6
trademark=TRADEMARK, # ID 7
manufacturer=MANUFACTURER, # ID 8
designer=DESIGNER, # ID 9
vendorURL=VENDOR_URL, # ID 11
designerURL=DESIGNER_URL, # ID 12
licenseDescription=LICENSE, # ID 13
licenseInfoURL=LICENSE_URL, # ID 14
)
fb.setupNameTable(name_strings, mac=False)
fb.setupOS2(
fsType=FSTYPE,
achVendID=VENDOR,
fsSelection=0x0040, # REGULAR
usWinAscent=ASCENT,
usWinDescent=-DESCENT,
sTypoAscender=ASCENT,
sTypoDescender=DESCENT,
sCapHeight=ASCENT,
ulCodePageRange1=(1 << 1)) # set 1st CP bit
if gsub_path:
addOpenTypeFeatures(fb.font, gsub_path, tables=['GSUB'])
if gpos_path:
addOpenTypeFeatures(fb.font, gpos_path, tables=['GPOS'])
fb.setupPost(isFixedPitch=1,
underlinePosition=UNDERLINE_POSITION,
underlineThickness=UNDERLINE_THICKNESS)
fb.setupDummyDSIG()
fb.save(os.path.join(out_dir, '{}.otf'.format(PS_NAME)))
def obfuscate_plus(plain_text,
filename: str,
only_ttf: bool,
target_path: str = 'output'):
"""
:param plain_text: 用户看到的内容
:param filename: 不含格式后缀的文件名
:param only_ttf: 是否需要woff、woff2格式
:param target_path: 生成的目标目录
"""
if str_has_whitespace(plain_text):
raise Exception('明文不允许含有空格')
if str_has_emoji(plain_text):
raise Exception('明文不允许含有emoji')
plain_text = deduplicate_str(plain_text)
original_font = TTFont(root / 'base-font/KaiGenGothicCN-Regular.ttf')
# https://github.com/fonttools/fonttools/blob/4.0.1/Lib/fontTools/fontBuilder.py#L28
# <class 'dict'>: {32: 'cid00001', 33: 'cid00002', 34: 'cid00003'...}
# key 为 ord(字符串)
original_cmap: dict = original_font.getBestCmap()
try:
ensure_cmap_has_all_text(original_cmap, plain_text)
except Exception as e:
raise e
# print('plain_text', plain_text)
glyphs, metrics, cmap = {}, {}, {}
# Unicode字符平面映射
# https://zh.wikipedia.org/wiki/Unicode%E5%AD%97%E7%AC%A6%E5%B9%B3%E9%9D%A2%E6%98%A0%E5%B0%84
private_codes = random.sample(range(0xE000, 0xF8FF), len(plain_text))
# 中文汉字和常见英文数字等的unicode编码范围实例页面
# https://www.zhangxinxu.com/study/201611/chinese-language-unicode-range.html
cjk_codes = random.sample(range(0x4E00, 0x9FA5), len(plain_text))
# print('private_codes', private_codes)
# print('cjk_codes', cjk_codes)
# https://github.com/fonttools/fonttools/blob/4.0.1/Tests/pens/ttGlyphPen_test.py#L21
glyph_set = original_font.getGlyphSet()
pen = TTGlyphPen(glyph_set)
glyph_order = original_font.getGlyphOrder()
# print('glyph_order', glyph_order)
final_shadow_text: list = []
if 'null' in glyph_order:
# print('基础字体含有 null')
glyph_set['null'].draw(pen)
glyphs['null'] = pen.glyph()
metrics['null'] = original_font['hmtx']['null']
final_shadow_text += ['null']
if '.notdef' in glyph_order:
# print('基础字体含有 .notdef')
glyph_set['.notdef'].draw(pen)
glyphs['.notdef'] = pen.glyph()
metrics['.notdef'] = original_font['hmtx']['.notdef']
final_shadow_text += ['.notdef']
html_entities = []
# 理论上这里还可以再打散一次顺序
for index, plain in enumerate(plain_text):
# print('index', index, 'plain', plain)
try:
shadow_cmap_name = original_cmap[cjk_codes[index]]
# print('shadow_cmap_name', shadow_cmap_name)
except KeyError:
# 遇到基础字库不存在的字会出现这种错误
traceback.print_exc()
return obfuscate_plus(filename, plain_text, only_ttf, target_path)
final_shadow_text += [shadow_cmap_name]
glyph_set[original_cmap[ord(plain)]].draw(pen)
glyphs[shadow_cmap_name] = pen.glyph()
metrics[shadow_cmap_name] = original_font['hmtx'][original_cmap[ord(
plain)]]
cmap[private_codes[index]] = shadow_cmap_name
html_entities += [hex(private_codes[index]).replace('0x', '&#x')]
# print('cmap', cmap)
# print('metrics', metrics)
# print('final_shadow_text', final_shadow_text)
# print('html_entities', html_entities)
horizontal_header = {
'ascent': original_font['hhea'].ascent,
'descent': original_font['hhea'].descent,
}
fb = FontBuilder(original_font['head'].unitsPerEm, isTTF=True)
fb.setupGlyphOrder(final_shadow_text)
fb.setupCharacterMap(cmap)
fb.setupGlyf(glyphs)
fb.setupHorizontalMetrics(metrics)
fb.setupHorizontalHeader(**horizontal_header)
fb.setupNameTable(NAME_STRING)
fb.setupOS2()
fb.setupPost()
fb.save(f'{root}/{target_path}/{filename}.ttf')
# print('创建了新字体文件', f'{root}/{target_path}/{filename}.ttf')
result = dict()
result['ttf'] = f'{root}/{target_path}/{filename}.ttf'
if only_ttf:
return result
else:
woff_and_woff2 = subset_ttf_font(f'{root}/{target_path}/{filename}')
return {
**result,
**woff_and_woff2
}, dict(zip(plain_text, html_entities))
def obfuscate(plain_text,
shadow_text,
filename: str,
only_ttf: bool,
target_path: str = 'output') -> dict:
"""
:param plain_text: 用户看到的内容
:param shadow_text: 爬虫看到的内容
:param filename: 不含格式后缀的文件名
:param only_ttf: 是否需要woff、woff2格式
:param target_path: 生成的目标目录
"""
if str_has_whitespace(plain_text) | str_has_whitespace(shadow_text):
raise Exception('明文或阴书不允许含有空格')
if str_has_emoji(plain_text) | str_has_emoji(shadow_text):
raise Exception('明文或阴书不允许含有emoji')
plain_text = deduplicate_str(plain_text)
shadow_text = deduplicate_str(shadow_text)
if plain_text == shadow_text:
raise Exception('没有意义的混淆')
if len(plain_text) != len(shadow_text):
raise Exception('阴书的有效长度需与明文一致')
original_font = TTFont(root / 'base-font/KaiGenGothicCN-Regular.ttf')
# https://github.com/fonttools/fonttools/blob/4.0.1/Lib/fontTools/fontBuilder.py#L28
# <class 'dict'>: {32: 'cid00001', 33: 'cid00002', 34: 'cid00003'...}
# key 为 ord(字符串)
original_cmap: dict = original_font.getBestCmap()
try:
ensure_cmap_has_all_text(original_cmap, plain_text)
except Exception as e:
raise e
# print('plain_text', plain_text)
# print('shadow_text', shadow_text)
glyphs, metrics, cmap = {}, {}, {}
# https://github.com/fonttools/fonttools/blob/4.0.1/Tests/pens/ttGlyphPen_test.py#L21
glyph_set = original_font.getGlyphSet()
pen = TTGlyphPen(glyph_set)
glyph_order = original_font.getGlyphOrder()
# print('glyph_order', glyph_order)
final_shadow_text: list = []
if 'null' in glyph_order:
# print('基础字体含有 null')
glyph_set['null'].draw(pen)
glyphs['null'] = pen.glyph()
metrics['null'] = original_font['hmtx']['null']
final_shadow_text += ['null']
if '.notdef' in glyph_order:
# print('基础字体含有 .notdef')
glyph_set['.notdef'].draw(pen)
glyphs['.notdef'] = pen.glyph()
metrics['.notdef'] = original_font['hmtx']['.notdef']
final_shadow_text += ['.notdef']
for index, (plain, shadow) in enumerate(zip(plain_text, shadow_text)):
# print('index', index, 'plain', plain, 'shadow', shadow)
shadow_cmap_name = original_cmap[ord(shadow)]
# print('shadow_cmap_name', shadow_cmap_name)
final_shadow_text += [shadow_cmap_name]
glyph_set[original_cmap[ord(plain)]].draw(pen)
glyphs[shadow_cmap_name] = pen.glyph()
metrics[shadow_cmap_name] = original_font['hmtx'][original_cmap[ord(
plain)]]
cmap[ord(shadow)] = shadow_cmap_name
# print('cmap', cmap)
# print('metrics', metrics)
# print('final_shadow_text', final_shadow_text)
horizontal_header = {
'ascent': original_font['hhea'].ascent,
'descent': original_font['hhea'].descent,
}
fb = FontBuilder(original_font['head'].unitsPerEm, isTTF=True)
fb.setupGlyphOrder(final_shadow_text)
fb.setupCharacterMap(cmap)
fb.setupGlyf(glyphs)
fb.setupHorizontalMetrics(metrics)
fb.setupHorizontalHeader(**horizontal_header)
fb.setupNameTable(NAME_STRING)
fb.setupOS2()
fb.setupPost()
# print('创建了新字体文件', f'{target_path}/{filename}.ttf')
fb.save(f'{root}/{target_path}/{filename}.ttf')
# print('创建了新字体文件', f'{target_path}/{filename}.ttf')
result = dict()
result['ttf'] = f'{root}/{target_path}/{filename}.ttf'
if not only_ttf:
woff_and_woff2 = subset_ttf_font(f'{root}/{target_path}/{filename}')
result = {**result, **woff_and_woff2}
return result
def build(instance, opts):
font = instance.parent
master = font.masters[0]
fea, marks = makeFeatures(instance, master)
glyphOrder = []
advanceWidths = {}
characterMap = {}
charStrings = {}
for glyph in font.glyphs:
if not glyph.export:
continue
name = glyph.name
glyphOrder.append(name)
if glyph.unicode:
characterMap[int(glyph.unicode, 16)] = name
layer = getLayer(glyph, instance)
width = 0 if name in marks else layer.width
path = Path()
draw(layer, instance, path.getPen())
path.simplify(fix_winding=True, keep_starting_points=True)
pen = T2CharStringPen(width, None)
path.draw(pen)
charStrings[name] = pen.getCharString(optimize=False)
advanceWidths[name] = width
# XXX
glyphOrder.pop(glyphOrder.index(".notdef"))
glyphOrder.pop(glyphOrder.index("space"))
glyphOrder.insert(0, ".notdef")
glyphOrder.insert(1, "space")
version = float(opts.version)
vendor = font.customParameters["vendorID"]
names = {
"copyright": font.copyright,
"familyName": instance.familyName,
"styleName": instance.name,
"uniqueFontIdentifier": f"{version:.03f};{vendor};{instance.fontName}",
"fullName": instance.fullName,
"version": f"Version {version:.03f}",
"psName": instance.fontName,
"manufacturer": font.manufacturer,
"designer": font.designer,
"description": font.customParameters["description"],
"vendorURL": font.manufacturerURL,
"designerURL": font.designerURL,
"licenseDescription": font.customParameters["license"],
"licenseInfoURL": font.customParameters["licenseURL"],
"sampleText": font.customParameters["sampleText"],
}
date = int(font.date.timestamp()) - epoch_diff
fb = FontBuilder(font.upm, isTTF=False)
fb.updateHead(fontRevision=version, created=date, modified=date)
fb.setupGlyphOrder(glyphOrder)
fb.setupCharacterMap(characterMap)
fb.setupNameTable(names, mac=False)
fb.setupHorizontalHeader(ascent=master.ascender, descent=master.descender,
lineGap=master.customParameters["typoLineGap"])
privateDict = {
"BlueValues": [],
"OtherBlues": [],
"StemSnapH": master.horizontalStems,
"StemSnapV": master.verticalStems,
"StdHW": master.horizontalStems[0],
"StdVW": master.verticalStems[0],
}
for zone in sorted(master.alignmentZones):
pos = zone.position
size = zone.size
vals = privateDict["BlueValues"] if pos == 0 or size >= 0 else privateDict["OtherBlues"]
vals.extend(sorted((pos, pos + size)))
fontInfo = {
"FullName": names["fullName"],
"Notice": names["copyright"].replace("©", "\(c\)"),
"version": f"{version:07.03f}",
"Weight": instance.name,
}
fb.setupCFF(names["psName"], fontInfo, charStrings, privateDict)
metrics = {}
for i, (name, width) in enumerate(advanceWidths.items()):
bounds = charStrings[name].calcBounds(None) or [0]
metrics[name] = (width, bounds[0])
fb.setupHorizontalMetrics(metrics)
codePages = [CODEPAGE_RANGES[v] for v in font.customParameters["codePageRanges"]]
fb.setupOS2(version=4, sTypoAscender=master.ascender,
sTypoDescender=master.descender,
sTypoLineGap=master.customParameters["typoLineGap"],
usWinAscent=master.ascender, usWinDescent=-master.descender,
sxHeight=master.xHeight, sCapHeight=master.capHeight,
achVendID=vendor,
fsType=calcBits(font.customParameters["fsType"], 0, 16),
fsSelection=calcFsSelection(instance),
ulUnicodeRange1=calcBits(font.customParameters["unicodeRanges"], 0, 32),
ulCodePageRange1=calcBits(codePages, 0, 32))
ut = int(master.customParameters["underlineThickness"])
up = int(master.customParameters["underlinePosition"])
fb.setupPost(underlineThickness=ut, underlinePosition=up + ut//2)
fb.addOpenTypeFeatures(fea)
cidinfo = f"""
FontName ({names["psName"]})
FamilyName ({names["familyName"]})
Weight ({fontInfo["Weight"]})
version ({fontInfo["version"]})
Notice ({fontInfo["Notice"]})
Registry Adobe
Ordering Identity
Supplement 0
"""
cidmap = f"mergefonts {instance.fontName}\n" \
+ "\n".join([f"{i} {n}" for i, n in enumerate(glyphOrder)])
return fb.font, cidinfo, cidmap
