def test_decompileSharedCoords_Skia(self):
table = table__g_v_a_r()
table.offsetToCoord = 0
table.sharedCoordCount = 8
sharedCoords = table.decompileSharedCoords_(["wght", "wdth"],
SKIA_SHARED_COORDS)
self.assertEqual([{
"wght": 1.0,
"wdth": 0.0
}, {
"wght": -1.0,
"wdth": 0.0
}, {
"wght": 0.0,
"wdth": 1.0
}, {
"wght": 0.0,
"wdth": -1.0
}, {
"wght": -1.0,
"wdth": -1.0
}, {
"wght": 1.0,
"wdth": -1.0
}, {
"wght": 1.0,
"wdth": 1.0
}, {
"wght": -1.0,
"wdth": 1.0
}], sharedCoords)
def test_decompileGlyph_empty(self):
table = table__g_v_a_r()
self.assertEqual([],
table.decompileGlyph_(numPointsInGlyph=5,
sharedCoords=[],
axisTags=[],
data=b""))
def AddGlyphVariations(font, thin, regular, black):
assert "gvar" not in font
gvar = font["gvar"] = table__g_v_a_r()
gvar.version = 1
gvar.reserved = 0
gvar.variations = {}
for glyphName in regular.getGlyphOrder():
regularCoord = GetCoordinates(regular, glyphName)
thinCoord = GetCoordinates(thin, glyphName)
blackCoord = GetCoordinates(black, glyphName)
if not regularCoord or not blackCoord or not thinCoord:
warnings.warn("glyph %s not present in all input fonts" %
glyphName)
continue
if (len(regularCoord) != len(blackCoord) or
len(regularCoord) != len(thinCoord)):
warnings.warn("glyph %s has not the same number of "
"control points in all input fonts" % glyphName)
continue
thinDelta = []
blackDelta = []
for ((regX, regY), (blackX, blackY), (thinX, thinY)) in \
zip(regularCoord, blackCoord, thinCoord):
thinDelta.append(((thinX - regX, thinY - regY)))
blackDelta.append((blackX - regX, blackY - regY))
thinVar = GlyphVariation({"wght": (-1.0, -1.0, 0.0)}, thinDelta)
blackVar = GlyphVariation({"wght": (0.0, 1.0, 1.0)}, blackDelta)
gvar.variations[glyphName] = [thinVar, blackVar]
def AddGlyphVariations(font, thin, regular, black):
assert "gvar" not in font
gvar = font["gvar"] = table__g_v_a_r()
gvar.version = 1
gvar.reserved = 0
gvar.variations = {}
for glyphName in regular.getGlyphOrder():
regularCoord = GetCoordinates(regular, glyphName)
thinCoord = GetCoordinates(thin, glyphName)
blackCoord = GetCoordinates(black, glyphName)
if not regularCoord or not blackCoord or not thinCoord:
logging.warning("glyph %s not present in all input fonts",
glyphName)
continue
if (len(regularCoord) != len(blackCoord) or
len(regularCoord) != len(thinCoord)):
logging.warning("glyph %s has not the same number of "
"control points in all input fonts", glyphName)
continue
thinDelta = []
blackDelta = []
for ((regX, regY), (blackX, blackY), (thinX, thinY)) in \
zip(regularCoord, blackCoord, thinCoord):
thinDelta.append(((thinX - regX, thinY - regY)))
blackDelta.append((blackX - regX, blackY - regY))
thinVar = TupleVariation({"wght": (-1.0, -1.0, 0.0)}, thinDelta)
blackVar = TupleVariation({"wght": (0.0, 1.0, 1.0)}, blackDelta)
gvar.variations[glyphName] = [thinVar, blackVar]
def _add_gvar(font, axes, master_ttfs, master_locs, base_idx):
# Make copies for modification
master_ttfs = master_ttfs[:]
master_locs = [l.copy() for l in master_locs]
axis_tags = axes.keys()
# Normalize master locations. TODO Move to a separate function.
for tag, (name, lower, default, upper) in axes.items():
for l in master_locs:
v = l[tag]
if v == default:
v = 0
elif v < default:
v = (v - default) / (default - lower)
else:
v = (v - default) / (upper - default)
l[tag] = v
# Locations are normalized now
print("Normalized master positions:")
print(master_locs)
print("Generating gvar")
assert "gvar" not in font
gvar = font["gvar"] = table__g_v_a_r()
gvar.version = 1
gvar.reserved = 0
gvar.variations = {}
# Assume single-model for now.
model = VariationModel(master_locs)
model_base_idx = model.mapping[base_idx]
assert 0 == model_base_idx
for glyph in font.getGlyphOrder():
allData = [_GetCoordinates(m, glyph) for m in master_ttfs]
allCoords = [d[0] for d in allData]
allControls = [d[1] for d in allData]
control = allControls[0]
if (any(c != control for c in allControls)):
warnings.warn("glyph %s has incompatible masters; skipping" %
glyph)
continue
del allControls
gvar.variations[glyph] = []
deltas = model.getDeltas(allCoords)
supports = model.supports
assert len(deltas) == len(supports)
for i, (delta, support) in enumerate(zip(deltas, supports)):
if i == model_base_idx:
continue
var = GlyphVariation(support, delta)
gvar.variations[glyph].append(var)
def _add_gvar(font, axes, master_ttfs, master_locs, base_idx):
# Make copies for modification
master_ttfs = master_ttfs[:]
master_locs = [l.copy() for l in master_locs]
axis_tags = axes.keys()
# Normalize master locations. TODO Move to a separate function.
for tag,(name,lower,default,upper) in axes.items():
for l in master_locs:
v = l[tag]
if v == default:
v = 0
elif v < default:
v = (v - default) / (default - lower)
else:
v = (v - default) / (upper - default)
l[tag] = v
# Locations are normalized now
print("Normalized master positions:")
print(master_locs)
print("Generating gvar")
assert "gvar" not in font
gvar = font["gvar"] = table__g_v_a_r()
gvar.version = 1
gvar.reserved = 0
gvar.variations = {}
# Assume single-model for now.
model = VariationModel(master_locs)
model_base_idx = model.mapping[base_idx]
assert 0 == model_base_idx
for glyph in font.getGlyphOrder():
allData = [_GetCoordinates(m, glyph) for m in master_ttfs]
allCoords = [d[0] for d in allData]
allControls = [d[1] for d in allData]
control = allControls[0]
if (any(c != control for c in allControls)):
warnings.warn("glyph %s has incompatible masters; skipping" % glyph)
continue
del allControls
gvar.variations[glyph] = []
deltas = model.getDeltas(allCoords)
supports = model.supports
assert len(deltas) == len(supports)
for i,(delta,support) in enumerate(zip(deltas, supports)):
if i == model_base_idx:
continue
var = GlyphVariation(support, delta)
gvar.variations[glyph].append(var)
def test_compileGlyph_onlyRedundantVariations(self):
table = table__g_v_a_r()
axes = {"wght": (0.3, 0.4, 0.5), "opsz": (0.7, 0.8, 0.9)}
table.variations = {"glyphname": [
GlyphVariation(axes, [None] * 4),
GlyphVariation(axes, [None] * 4),
GlyphVariation(axes, [None] * 4)
]}
self.assertEqual(b"", table.compileGlyph_("glyphname", 8, ["wght", "opsz"], {}))
def test_compileGlyph_roundTrip(self):
table = table__g_v_a_r()
axisTags = ["wght", "wdth"]
numPointsInGlyph = 4
glyphCoords = [(1,1), (2,2), (3,3), (4,4)]
gvar1 = GlyphVariation({"wght": (0.5, 1.0, 1.0), "wdth": (1.0, 1.0, 1.0)}, glyphCoords)
gvar2 = GlyphVariation({"wght": (1.0, 1.0, 1.0), "wdth": (1.0, 1.0, 1.0)}, glyphCoords)
table.variations = {"oslash": [gvar1, gvar2]}
data = table.compileGlyph_("oslash", numPointsInGlyph, axisTags, {})
self.assertEqual([gvar1, gvar2], table.decompileGlyph_(numPointsInGlyph, {}, axisTags, data))
def test_compileGlyph_onlyRedundantVariations(self):
table = table__g_v_a_r()
axes = {"wght": (0.3, 0.4, 0.5), "opsz": (0.7, 0.8, 0.9)}
table.variations = {
"glyphname": [
GlyphVariation(axes, [None] * 4),
GlyphVariation(axes, [None] * 4),
GlyphVariation(axes, [None] * 4)
]
}
self.assertEqual(
b"", table.compileGlyph_("glyphname", 8, ["wght", "opsz"], {}))
def test_decompileGlyph_Skia_I(self):
axes = ["wght", "wdth"]
table = table__g_v_a_r()
table.offsetToCoord = 0
table.sharedCoordCount = 8
table.axisCount = len(axes)
sharedCoords = table.decompileSharedCoords_(axes, SKIA_SHARED_COORDS)
tuples = table.decompileGlyph_(18, sharedCoords, axes, SKIA_GVAR_I)
self.assertEqual(8, len(tuples))
self.assertEqual({"wght": (0.0, 1.0, 1.0)}, tuples[0].axes)
self.assertEqual("257,0 -127,0 -128,58 -130,90 -130,62 -130,67 -130,32 -127,0 257,0 "
"259,14 260,64 260,21 260,69 258,124 0,0 130,0 0,0 0,0",
" ".join(["%d,%d" % c for c in tuples[0].coordinates]))
def test_decompileGlyph_Skia_I(self):
axes = ["wght", "wdth"]
table = table__g_v_a_r()
table.offsetToCoord = 0
table.sharedCoordCount = 8
table.axisCount = len(axes)
sharedCoords = table.decompileSharedCoords_(axes, SKIA_SHARED_COORDS)
tuples = table.decompileGlyph_(18, sharedCoords, axes, SKIA_GVAR_I)
self.assertEqual(8, len(tuples))
self.assertEqual({"wght": (0.0, 1.0, 1.0)}, tuples[0].axes)
self.assertEqual(
"257,0 -127,0 -128,58 -130,90 -130,62 -130,67 -130,32 -127,0 257,0 "
"259,14 260,64 260,21 260,69 258,124 0,0 130,0 0,0 0,0",
" ".join(["%d,%d" % c for c in tuples[0].coordinates]))
def test_decompileSharedCoords_Skia(self):
table = table__g_v_a_r()
table.offsetToCoord = 0
table.sharedCoordCount = 8
sharedCoords = table.decompileSharedCoords_(["wght", "wdth"], SKIA_SHARED_COORDS)
self.assertEqual([
{"wght": 1.0, "wdth": 0.0},
{"wght": -1.0, "wdth": 0.0},
{"wght": 0.0, "wdth": 1.0},
{"wght": 0.0, "wdth": -1.0},
{"wght": -1.0, "wdth": -1.0},
{"wght": 1.0, "wdth": -1.0},
{"wght": 1.0, "wdth": 1.0},
{"wght": -1.0, "wdth": 1.0}
], sharedCoords)
def test_compileGlyph_roundTrip(self):
table = table__g_v_a_r()
axisTags = ["wght", "wdth"]
numPointsInGlyph = 4
glyphCoords = [(1, 1), (2, 2), (3, 3), (4, 4)]
gvar1 = GlyphVariation(
{
"wght": (0.5, 1.0, 1.0),
"wdth": (1.0, 1.0, 1.0)
}, glyphCoords)
gvar2 = GlyphVariation(
{
"wght": (1.0, 1.0, 1.0),
"wdth": (1.0, 1.0, 1.0)
}, glyphCoords)
table.variations = {"oslash": [gvar1, gvar2]}
data = table.compileGlyph_("oslash", numPointsInGlyph, axisTags, {})
self.assertEqual([gvar1, gvar2],
table.decompileGlyph_(numPointsInGlyph, {}, axisTags,
data))
def test_compileSharedCoords(self):
table = table__g_v_a_r()
table.variations = {}
deltas = [None] * 4
table.variations["A"] = [
GlyphVariation({"wght": (1.0, 1.0, 1.0), "wdth": (0.5, 0.7, 1.0)}, deltas)
]
table.variations["B"] = [
GlyphVariation({"wght": (1.0, 1.0, 1.0), "wdth": (0.2, 0.7, 1.0)}, deltas),
GlyphVariation({"wght": (1.0, 1.0, 1.0), "wdth": (0.2, 0.8, 1.0)}, deltas)
]
table.variations["C"] = [
GlyphVariation({"wght": (1.0, 1.0, 1.0), "wdth": (0.3, 0.7, 1.0)}, deltas),
GlyphVariation({"wght": (1.0, 1.0, 1.0), "wdth": (0.3, 0.8, 1.0)}, deltas),
GlyphVariation({"wght": (1.0, 1.0, 1.0), "wdth": (0.3, 0.9, 1.0)}, deltas)
]
# {"wght":1.0, "wdth":0.7} is shared 3 times; {"wght":1.0, "wdth":0.8} is shared twice.
# Min and max values are not part of the shared coordinate pool and should get ignored.
result = table.compileSharedCoords_(["wght", "wdth"])
self.assertEqual(["40 00 2C CD", "40 00 33 33"], [hexencode(c) for c in result])
def test_compileSharedCoords(self):
table = table__g_v_a_r()
table.variations = {}
deltas = [None] * 4
table.variations["A"] = [
GlyphVariation({
"wght": (1.0, 1.0, 1.0),
"wdth": (0.5, 0.7, 1.0)
}, deltas)
]
table.variations["B"] = [
GlyphVariation({
"wght": (1.0, 1.0, 1.0),
"wdth": (0.2, 0.7, 1.0)
}, deltas),
GlyphVariation({
"wght": (1.0, 1.0, 1.0),
"wdth": (0.2, 0.8, 1.0)
}, deltas)
]
table.variations["C"] = [
GlyphVariation({
"wght": (1.0, 1.0, 1.0),
"wdth": (0.3, 0.7, 1.0)
}, deltas),
GlyphVariation({
"wght": (1.0, 1.0, 1.0),
"wdth": (0.3, 0.8, 1.0)
}, deltas),
GlyphVariation({
"wght": (1.0, 1.0, 1.0),
"wdth": (0.3, 0.9, 1.0)
}, deltas)
]
# {"wght":1.0, "wdth":0.7} is shared 3 times; {"wght":1.0, "wdth":0.8} is shared twice.
# Min and max values are not part of the shared coordinate pool and should get ignored.
result = table.compileSharedCoords_(["wght", "wdth"])
self.assertEqual(["40 00 2C CD", "40 00 33 33"],
[hexencode(c) for c in result])
def test_compileSharedCoords(self):
class FakeFont:
def getGlyphOrder(self):
return ["A", "B", "C"]
font = FakeFont()
table = table__g_v_a_r()
table.variations = {}
table.variations["A"] = [
GlyphVariation({"wght": (1.0, 1.0, 1.0), "wdth": (0.5, 0.7, 1.0)}, GlyphCoordinates.zeros(4))
]
table.variations["B"] = [
GlyphVariation({"wght": (1.0, 1.0, 1.0), "wdth": (0.2, 0.7, 1.0)}, GlyphCoordinates.zeros(4)),
GlyphVariation({"wght": (1.0, 1.0, 1.0), "wdth": (0.2, 0.8, 1.0)}, GlyphCoordinates.zeros(4))
]
table.variations["C"] = [
GlyphVariation({"wght": (1.0, 1.0, 1.0), "wdth": (0.3, 0.7, 1.0)}, GlyphCoordinates.zeros(4)),
GlyphVariation({"wght": (1.0, 1.0, 1.0), "wdth": (0.3, 0.8, 1.0)}, GlyphCoordinates.zeros(4)),
GlyphVariation({"wght": (1.0, 1.0, 1.0), "wdth": (0.3, 0.9, 1.0)}, GlyphCoordinates.zeros(4))
]
# {"wght":1.0, "wdth":0.7} is shared 3 times; {"wght":1.0, "wdth":0.8} is shared twice.
# Min and max values are not part of the shared coordinate pool and should get ignored.
result = table.compileSharedCoords_(font, ["wght", "wdth"])
self.assertEqual(["40 00 2C CD", "40 00 33 33"], [hexencode(c) for c in result])
def test_decompileSharedCoords_empty(self):
table = table__g_v_a_r()
table.offsetToCoord = 0
table.sharedCoordCount = 0
self.assertEqual([], table.decompileSharedCoords_(["wght"], b""))
def test_compileGlyph_emptyVariations(self):
table = table__g_v_a_r()
table.variations = {"glyphname": []}
self.assertEqual(b"", table.compileGlyph_("glyphname", 8, ["wght", "opsz"], {}))
def test_decompileGlyph_empty(self): table = table__g_v_a_r() self.assertEqual([], table.decompileGlyph_(numPointsInGlyph=5, sharedCoords=[], axisTags=[], data=b""))
def test_compileGlyph_emptyVariations(self):
table = table__g_v_a_r()
table.variations = {"glyphname": []}
self.assertEqual(
b"", table.compileGlyph_("glyphname", 8, ["wght", "opsz"], {}))
def test_decompileSharedCoords_empty(self): table = table__g_v_a_r() table.offsetToCoord = 0 table.sharedCoordCount = 0 self.assertEqual([], table.decompileSharedCoords_(["wght"], b""))
