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1from io import BytesIO
2from fontTools import cffLib
3from . import DefaultTable
4
5
6class table_C_F_F_(DefaultTable.DefaultTable):
7    def __init__(self, tag=None):
8        DefaultTable.DefaultTable.__init__(self, tag)
9        self.cff = cffLib.CFFFontSet()
10        self._gaveGlyphOrder = False
11
12    def decompile(self, data, otFont):
13        self.cff.decompile(BytesIO(data), otFont, isCFF2=False)
14        assert len(self.cff) == 1, "can't deal with multi-font CFF tables."
15
16    def compile(self, otFont):
17        f = BytesIO()
18        self.cff.compile(f, otFont, isCFF2=False)
19        return f.getvalue()
20
21    def haveGlyphNames(self):
22        if hasattr(self.cff[self.cff.fontNames[0]], "ROS"):
23            return False  # CID-keyed font
24        else:
25            return True
26
27    def getGlyphOrder(self):
28        if self._gaveGlyphOrder:
29            from fontTools import ttLib
30
31            raise ttLib.TTLibError("illegal use of getGlyphOrder()")
32        self._gaveGlyphOrder = True
33        return self.cff[self.cff.fontNames[0]].getGlyphOrder()
34
35    def setGlyphOrder(self, glyphOrder):
36        pass
37        # XXX
38        # self.cff[self.cff.fontNames[0]].setGlyphOrder(glyphOrder)
39
40    def toXML(self, writer, otFont):
41        self.cff.toXML(writer)
42
43    def fromXML(self, name, attrs, content, otFont):
44        if not hasattr(self, "cff"):
45            self.cff = cffLib.CFFFontSet()
46        self.cff.fromXML(name, attrs, content, otFont)
47