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Use NameRecordVisitor in subsetter

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This commit is contained in:
Marc Foley 2023-06-27 15:23:56 +01:00
parent a792851131
commit edf8891fba
2 changed files with 8 additions and 28 deletions
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29
Lib/fontTools/subset/__init__.py
View File

@ -15,6 +15,7 @@ from fontTools.subset.util import _add_method, _uniq_sort
from fontTools.subset.cff import *
from fontTools.subset.svg import *
from fontTools.varLib import varStore # for subset_varidxes
from fontTools.ttLib.tables._n_a_m_e import NameRecordVisitor
import sys
import struct
import array
@ -2916,31 +2917,9 @@ def prune_pre_subset(self, font, options):
@_add_method(ttLib.getTableClass("name"))
def prune_pre_subset(self, font, options):
nameIDs = set(options.name_IDs)
fvar = font.get("fvar")
if fvar:
nameIDs.update([axis.axisNameID for axis in fvar.axes])
nameIDs.update([inst.subfamilyNameID for inst in fvar.instances])
nameIDs.update(
[
inst.postscriptNameID
for inst in fvar.instances
if inst.postscriptNameID != 0xFFFF
]
)
stat = font.get("STAT")
if stat:
if stat.table.AxisValueArray:
nameIDs.update(
[val_rec.ValueNameID for val_rec in stat.table.AxisValueArray.AxisValue]
)
nameIDs.update(
[axis_rec.AxisNameID for axis_rec in stat.table.DesignAxisRecord.Axis]
)
cpal = font.get("CPAL")
if cpal and cpal.version == 1:
nameIDs.update(cpal.paletteLabels)
nameIDs.update(cpal.paletteEntryLabels)
visitor = NameRecordVisitor()
visitor.visit(font)
nameIDs = set(options.name_IDs) | visitor.seen
if "*" not in options.name_IDs:
self.names = [n for n in self.names if n.nameID in nameIDs]
if not options.name_legacy:

7
Lib/fontTools/ttLib/tables/_n_a_m_e.py
View File

@ -1198,7 +1198,8 @@ def visit(visitor, obj, attr, value):
@NameRecordVisitor.register(ttLib.getTableClass("fvar"))
def visit(visitor, obj):
for inst in obj.instances:
visitor.seen.add(inst.postscriptNameID)
if inst.postscriptNameID != 0xFFFF:
visitor.seen.add(inst.postscriptNameID)
visitor.seen.add(inst.subfamilyNameID)
for axis in obj.axes:
@ -1207,6 +1208,6 @@ def visit(visitor, obj):
@NameRecordVisitor.register(ttLib.getTableClass("CPAL"))
def visit(visitor, obj):
for nameID in obj.paletteLabels:
if nameID != C_P_A_L_.table_C_P_A_L_.NO_NAME_ID:
for nameID in obj.paletteLabels + obj.paletteEntryLabels:
if obj.version == 1:
visitor.seen.add(nameID)