def parseGDEF(lines, font):
container = ttLib.getTableClass('GDEF')()
log.debug("Parsing GDEF")
self = ot.GDEF()
fields = {
'class definition begin':
('GlyphClassDef',
lambda lines, font: parseClassDef(lines, font, klass=ot.GlyphClassDef)),
'attachment list begin':
('AttachList', parseAttachList),
'carets begin':
('LigCaretList', parseCaretList),
'mark attachment class definition begin':
('MarkAttachClassDef',
lambda lines, font: parseClassDef(lines, font, klass=ot.MarkAttachClassDef)),
'markfilter set definition begin':
('MarkGlyphSetsDef', parseMarkFilteringSets),
}
for attr,parser in fields.values():
setattr(self, attr, None)
while lines.peek() is not None:
typ = lines.peek()[0].lower()
if typ not in fields:
log.debug('Skipping %s', typ)
next(lines)
continue
attr,parser = fields[typ]
assert getattr(self, attr) is None, attr
setattr(self, attr, parser(lines, font))
self.Version = 0x00010000 if self.MarkGlyphSetsDef is None else 0x00010002
container.table = self
return container
def _merge_OTL(font, model, master_fonts, axisTags):
log.info("Merging OpenType Layout tables")
merger = VariationMerger(model, axisTags, font)
merger.mergeTables(font, master_fonts, ['GSUB', 'GDEF', 'GPOS'])
store = merger.store_builder.finish()
if not store.VarData:
return
try:
GDEF = font['GDEF'].table
assert GDEF.Version <= 0x00010002
except KeyError:
font['GDEF'] = newTable('GDEF')
GDEFTable = font["GDEF"] = newTable('GDEF')
GDEF = GDEFTable.table = ot.GDEF()
GDEF.GlyphClassDef = None
GDEF.AttachList = None
GDEF.LigCaretList = None
GDEF.MarkAttachClassDef = None
GDEF.MarkGlyphSetsDef = None
GDEF.Version = 0x00010003
GDEF.VarStore = store
# Optimize
varidx_map = store.optimize()
GDEF.remap_device_varidxes(varidx_map)
if 'GPOS' in font:
font['GPOS'].table.remap_device_varidxes(varidx_map)
def makeGDEF(self):
gdef = otTables.GDEF()
gdef.Version = 1.0
gdef.GlyphClassDef = otTables.GlyphClassDef()
inferredGlyphClass = {}
for lookup in self.lookups_:
inferredGlyphClass.update(lookup.inferGlyphClasses())
marks = {} # glyph --> markClass
for markClass in self.parseTree.markClasses.values():
for markClassDef in markClass.definitions:
for glyph in markClassDef.glyphSet():
other = marks.get(glyph)
if other not in (None, markClass):
name1, name2 = sorted([markClass.name, other.name])
raise FeatureLibError(
'Glyph %s cannot be both in '
'markClass @%s and @%s' % (glyph, name1, name2),
markClassDef.location)
marks[glyph] = markClass
inferredGlyphClass[glyph] = 3
gdef.GlyphClassDef.classDefs = inferredGlyphClass
gdef.AttachList = None
gdef.LigCaretList = None
markAttachClass = {g: c for g, (c, _) in self.markAttach_.items()}
if markAttachClass:
gdef.MarkAttachClassDef = otTables.MarkAttachClassDef()
gdef.MarkAttachClassDef.classDefs = markAttachClass
else:
gdef.MarkAttachClassDef = None
if self.markFilterSets_:
gdef.Version = 0x00010002
m = gdef.MarkGlyphSetsDef = otTables.MarkGlyphSetsDef()
m.MarkSetTableFormat = 1
m.MarkSetCount = len(self.markFilterSets_)
m.Coverage = []
filterSets = [(id, glyphs)
for (glyphs, id) in self.markFilterSets_.items()]
for i, glyphs in sorted(filterSets):
coverage = otTables.Coverage()
coverage.glyphs = sorted(glyphs, key=self.font.getGlyphID)
m.Coverage.append(coverage)
if (len(gdef.GlyphClassDef.classDefs) == 0
and gdef.MarkAttachClassDef is None):
return None
result = getTableClass("GDEF")()
result.table = gdef
return result
def _merge_OTL(font, model, master_fonts, axisTags):
log.info("Merging OpenType Layout tables")
merger = VariationMerger(model, axisTags, font)
merger.mergeTables(font, master_fonts, ['GPOS'])
store = merger.store_builder.finish()
try:
GDEF = font['GDEF'].table
assert GDEF.Version <= 0x00010002
except KeyError:
font['GDEF']= newTable('GDEF')
GDEFTable = font["GDEF"] = newTable('GDEF')
GDEF = GDEFTable.table = ot.GDEF()
GDEF.Version = 0x00010003
GDEF.VarStore = store
def buildGDEF(self):
gdef = otTables.GDEF()
gdef.GlyphClassDef = self.buildGDEFGlyphClassDef_()
gdef.AttachList = \
otl.buildAttachList(self.attachPoints_, self.glyphMap)
gdef.LigCaretList = \
otl.buildLigCaretList(self.ligCaretCoords_, self.ligCaretPoints_,
self.glyphMap)
gdef.MarkAttachClassDef = self.buildGDEFMarkAttachClassDef_()
gdef.MarkGlyphSetsDef = self.buildGDEFMarkGlyphSetsDef_()
gdef.Version = 0x00010002 if gdef.MarkGlyphSetsDef else 1.0
if any((gdef.GlyphClassDef, gdef.AttachList, gdef.LigCaretList,
gdef.MarkAttachClassDef, gdef.MarkGlyphSetsDef)):
result = getTableClass("GDEF")()
result.table = gdef
return result
else:
return None
def add_gdef_table(font, class_defs):
font["GDEF"] = gdef = newTable("GDEF")
class_def_table = otTables.GlyphClassDef()
class_def_table.classDefs = class_defs
gdef.table = otTables.GDEF()
gdef.table.GlyphClassDef = class_def_table
