# Source code for fontTools.ttLib.tables.C_F_F_

    from io import BytesIO
    from fontTools import cffLib
    from . import DefaultTable

    class table_C_F_F_(DefaultTable.DefaultTable):
        """Compact Font Format table (version 1)

        The ``CFF`` table embeds a CFF-formatted font. The CFF font format
        predates OpenType and could be used as a standalone font file, but the
        ``CFF`` table is also used to package CFF fonts into an OpenType
        container.

        .. note::
           ``CFF`` has been succeeded by ``CFF2``, which eliminates much of
           the redundancy incurred by embedding CFF version 1 in an OpenType
           font.

        See also https://learn.microsoft.com/en-us/typography/opentype/spec/cff
        """

        def __init__(self, tag=None):
            DefaultTable.DefaultTable.__init__(self, tag)
            self.cff = cffLib.CFFFontSet()
            self._gaveGlyphOrder = False

        def decompile(self, data, otFont):
            self.cff.decompile(BytesIO(data), otFont, isCFF2=False)
            assert len(self.cff) == 1, "can't deal with multi-font CFF tables."

        def compile(self, otFont):
            f = BytesIO()
            self.cff.compile(f, otFont, isCFF2=False)
            return f.getvalue()

        def haveGlyphNames(self):
            if hasattr(self.cff[self.cff.fontNames[0]], "ROS"):
                return False  # CID-keyed font
            else:
                return True

        def getGlyphOrder(self):
            if self._gaveGlyphOrder:
                from fontTools import ttLib

                raise ttLib.TTLibError("illegal use of getGlyphOrder()")
            self._gaveGlyphOrder = True
            return self.cff[self.cff.fontNames[0]].getGlyphOrder()

        def setGlyphOrder(self, glyphOrder):
            pass

            # XXX
            # self.cff[self.cff.fontNames[0]].setGlyphOrder(glyphOrder)

        def toXML(self, writer, otFont):
            self.cff.toXML(writer)

        def fromXML(self, name, attrs, content, otFont):
            if not hasattr(self, "cff"):
                self.cff = cffLib.CFFFontSet()
            self.cff.fromXML(name, attrs, content, otFont)