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from fontTools.misc.textTools import safeEval
from . import DefaultTable
import struct
import array
# XXX I've lowered the strictness, to make sure Apple's own Chicago
# XXX gets through. They're looking into it, I hope to raise the standards
# XXX back to normal eventually.
class table_L_T_S_H_(DefaultTable.DefaultTable):
def decompile(self, data, ttFont):
version, numGlyphs = struct.unpack(">HH", data[:4])
data = data[4:]
assert version == 0, "unknown version: %s" % version
assert (len(data) % numGlyphs) < 4, "numGlyphs doesn't match data length"
# ouch: the assertion is not true in Chicago!
# assert numGlyphs == ttFont['maxp'].numGlyphs
yPels = array.array("B")
yPels.frombytes(data)
self.yPels = {}
for i in range(numGlyphs):
self.yPels[ttFont.getGlyphName(i)] = yPels[i]
def compile(self, ttFont):
version = 0
names = list(self.yPels.keys())
numGlyphs = len(names)
yPels = [0] * numGlyphs
# ouch: the assertion is not true in Chicago!
# assert len(self.yPels) == ttFont['maxp'].numGlyphs == numGlyphs
for name in names:
yPels[ttFont.getGlyphID(name)] = self.yPels[name]
yPels = array.array("B", yPels)
return struct.pack(">HH", version, numGlyphs) + yPels.tobytes()
def toXML(self, writer, ttFont):
names = sorted(self.yPels.keys())
for name in names:
writer.simpletag("yPel", name=name, value=self.yPels[name])
writer.newline()
def fromXML(self, name, attrs, content, ttFont):
if not hasattr(self, "yPels"):
self.yPels = {}
if name != "yPel":
return # ignore unknown tags
self.yPels[attrs["name"]] = safeEval(attrs["value"])
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