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from fontTools.misc import sstruct
from fontTools.misc.fixedTools import floatToFixedToStr
from fontTools.misc.textTools import safeEval
from . import DefaultTable
from . import grUtils
import struct
Sill_hdr = """
>
version: 16.16F
"""
class table_S__i_l_l(DefaultTable.DefaultTable):
def __init__(self, tag=None):
DefaultTable.DefaultTable.__init__(self, tag)
self.langs = {}
def decompile(self, data, ttFont):
(_, data) = sstruct.unpack2(Sill_hdr, data, self)
self.version = float(floatToFixedToStr(self.version, precisionBits=16))
(numLangs,) = struct.unpack(">H", data[:2])
data = data[8:]
maxsetting = 0
langinfo = []
for i in range(numLangs):
(langcode, numsettings, offset) = struct.unpack(
">4sHH", data[i * 8 : (i + 1) * 8]
)
offset = int(offset / 8) - (numLangs + 1)
langcode = langcode.replace(b"\000", b"")
langinfo.append((langcode.decode("utf-8"), numsettings, offset))
maxsetting = max(maxsetting, offset + numsettings)
data = data[numLangs * 8 :]
finfo = []
for i in range(maxsetting):
(fid, val, _) = struct.unpack(">LHH", data[i * 8 : (i + 1) * 8])
finfo.append((fid, val))
self.langs = {}
for c, n, o in langinfo:
self.langs[c] = []
for i in range(o, o + n):
self.langs[c].append(finfo[i])
def compile(self, ttFont):
ldat = b""
fdat = b""
offset = len(self.langs)
for c, inf in sorted(self.langs.items()):
ldat += struct.pack(">4sHH", c.encode("utf8"), len(inf), 8 * offset + 20)
for fid, val in inf:
fdat += struct.pack(">LHH", fid, val, 0)
offset += len(inf)
ldat += struct.pack(">LHH", 0x80808080, 0, 8 * offset + 20)
return (
sstruct.pack(Sill_hdr, self)
+ grUtils.bininfo(len(self.langs))
+ ldat
+ fdat
)
def toXML(self, writer, ttFont):
writer.simpletag("version", version=self.version)
writer.newline()
for c, inf in sorted(self.langs.items()):
writer.begintag("lang", name=c)
writer.newline()
for fid, val in inf:
writer.simpletag("feature", fid=grUtils.num2tag(fid), val=val)
writer.newline()
writer.endtag("lang")
writer.newline()
def fromXML(self, name, attrs, content, ttFont):
if name == "version":
self.version = float(safeEval(attrs["version"]))
elif name == "lang":
c = attrs["name"]
self.langs[c] = []
for element in content:
if not isinstance(element, tuple):
continue
tag, a, subcontent = element
if tag == "feature":
self.langs[c].append(
(grUtils.tag2num(a["fid"]), int(safeEval(a["val"])))
)
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