1b7d54fedc
git-svn-id: svn://svn.code.sf.net/p/fonttools/code/trunk@537 4cde692c-a291-49d1-8350-778aa11640f8
57 lines
1.6 KiB
Python
57 lines
1.6 KiB
Python
import sys
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import DefaultTable
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import array
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import numpy
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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 = "i"
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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 sys.byteorder <> "big":
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locations.byteswap()
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locations = numpy.array(locations, numpy.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, or wrong numGlyphs in 'maxp': %d %d" % (len(locations) - 1, ttFont['maxp'].numGlyphs)
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self.locations = locations[:ttFont['maxp'].numGlyphs + 1]
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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(numpy.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 sys.byteorder <> "big":
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locations = locations.byteswap()
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return locations.tostring()
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def set(self, locations):
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self.locations = numpy.array(locations, numpy.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 numpy.alltrue(numpy.equal(self.locations, other.locations))
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