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[glyf/VarComponent] Calculate flags at compile() if missing

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This commit is contained in:
Behdad Esfahbod 2023-01-17 12:02:07 -07:00
parent 094a08a3bf
commit 32fa4df276
1 changed files with 16 additions and 3 deletions
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19
Lib/fontTools/ttLib/tables/_g_l_y_f.py
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@ -1819,7 +1819,15 @@ class GlyphVarComponent(object):
def compile(self, glyfTable):
data = b""
flags = self.flags
if not hasattr(self, "flags"):
flags = 0
# Calculate optimal transform component flags
for attr_name, mapping_values in var_component_transform_mapping.items():
value = getattr(self, attr_name, mapping_values.defaultValue)
if value != mapping_values.defaultValue:
flags |= mapping_values.flag
else:
flags = self.flags
numAxes = len(self.location)
@ -1865,7 +1873,8 @@ class GlyphVarComponent(object):
def toXML(self, writer, ttFont):
attrs = [("glyphName", self.glyphName)]
attrs = attrs + [("flags", hex(self.flags))]
if hasattr(self, "flags"):
attrs = attrs + [("flags", hex(self.flags))]
for attr_name, (
_,
@ -1893,7 +1902,9 @@ class GlyphVarComponent(object):
def fromXML(self, name, attrs, content, ttFont):
self.glyphName = attrs["glyphName"]
self.flags = safeEval(attrs["flags"])
if "flags" in attrs:
self.flags = safeEval(attrs["flags"])
for attr_name, (
_,
@ -1920,6 +1931,8 @@ class GlyphVarComponent(object):
self.location[safeEval(attrs["index"])] = safeEval(attrs["value"])
def getPointCount(self):
assert hasattr(self, "flags"), "VarComponent with variations must have flags"
count = 0
if self.flags & VarComponentFlags.AXES_HAVE_VARIATION: