56 lines
1.4 KiB
Python
56 lines
1.4 KiB
Python
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import DefaultTable
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import array
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import Numeric
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from fontTools import ttLib
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import struct
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class table__l_o_c_a(DefaultTable.DefaultTable):
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dependencies = ['glyf']
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def decompile(self, data, ttFont):
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longFormat = ttFont['head'].indexToLocFormat
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if longFormat:
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format = "l"
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else:
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format = "H"
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locations = array.array(format)
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locations.fromstring(data)
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if ttLib.endian <> "big":
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locations.byteswap()
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locations = Numeric.array(locations, Numeric.Int32)
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if not longFormat:
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locations = locations * 2
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if len(locations) <> (ttFont['maxp'].numGlyphs + 1):
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raise ttLib.TTLibError, "corrupt 'loca' table"
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self.locations = locations
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def compile(self, ttFont):
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locations = self.locations
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if max(locations) < 0x20000:
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locations = locations / 2
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locations = locations.astype(Numeric.Int16)
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ttFont['head'].indexToLocFormat = 0
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else:
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ttFont['head'].indexToLocFormat = 1
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if ttLib.endian <> "big":
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locations = locations.byteswapped()
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return locations.tostring()
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def set(self, locations):
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self.locations = Numeric.array(locations, Numeric.Int32)
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def toXML(self, writer, ttFont):
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writer.comment("The 'loca' table will be calculated by the compiler")
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writer.newline()
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def __getitem__(self, index):
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return self.locations[index]
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def __len__(self):
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return len(self.locations)
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def __cmp__(self, other):
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return cmp(len(self), len(other)) or not Numeric.alltrue(Numeric.equal(self.locations, other.locations))
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