4cc0051c08
There are also some new files, for SING glyphlet support, that you may or may not want to add, because they are not in the OpenType spec. M_E_T_A_.py # SING glyphlet meta data table. see 'http://partners.adobe.com/public/developer/opentype/gdk/topic.html" S_I_N_G_.py # SING glyphlet basic info. See same web site as for META data table. G_M_A_P_.py # Summary of sing glyphlet info that has been stuck into a parent font. Not documented anywhere yet. G_P_K_G_.py # Opaque wrapper for SING glyphlet info; travels with application document. Is also stuck into augmented parent font. Not documented anywhere yet git-svn-id: svn://svn.code.sf.net/p/fonttools/code/trunk@507 4cde692c-a291-49d1-8350-778aa11640f8
103 lines
2.6 KiB
Python
103 lines
2.6 KiB
Python
import DefaultTable
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import sstruct
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import struct
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import time
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import string
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from fontTools.misc.textTools import safeEval, num2binary, binary2num
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SINGFormat = """
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> # big endian
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tableVersionMajor: H
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tableVersionMinor: H
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glyphletVersion: H
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permissions: h
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mainGID: H
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unitsPerEm: H
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vertAdvance: h
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vertOrigin: h
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uniqueName: 28s
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METAMD5: 16s
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nameLength: 1s
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"""
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# baseGlyphName is a byte string which follows the record above.
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class table_S_I_N_G_(DefaultTable.DefaultTable):
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dependencies = []
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def decompile(self, data, ttFont):
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dummy, rest = sstruct.unpack2(SINGFormat, data, self)
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self.uniqueName = self.decompileUniqueName(self.uniqueName)
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self.nameLength = ord(self.nameLength)
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assert len(rest) == self.nameLength
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self.baseGlyphName = rest
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rawMETAMD5 = self.METAMD5
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self.METAMD5 = "[" + hex(ord(self.METAMD5[0]))
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for char in rawMETAMD5[1:]:
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self.METAMD5 = self.METAMD5 + ", " + hex(ord(char))
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self.METAMD5 = self.METAMD5 + "]"
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def decompileUniqueName(self, data):
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name = ""
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for char in data:
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val = ord(char)
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if val == 0:
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break
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if (val > 31) or (val < 128):
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name = name + char
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else:
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octString = oct(val)
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if len(octString) > 3:
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octString = octString[1:] # chop off that leading zero.
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elif len(octString) < 3:
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octString.zfill(3)
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name = name + "\\" + octString
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return name
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def compile(self, ttFont):
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self.nameLength = chr(len(self.baseGlyphName))
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self.uniqueName = self.compilecompileUniqueName(self.uniqueName, 28)
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METAMD5List = eval(self.METAMD5)
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self.METAMD5 = ""
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for val in METAMD5List:
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self.METAMD5 = self.METAMD5 + chr(val)
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assert (len(self.METAMD5) == 16), "Failed to pack 16 byte MD5 hash in SING table"
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data = sstruct.pack(SINGFormat, self)
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data = data + self.baseGlyphName
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return data
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def compilecompileUniqueName(self, name, length):
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nameLen = len(name)
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if length <= nameLen:
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name[:length-1] + "\000"
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else:
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name.join( (nameLen - length)* "\000")
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return name
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def toXML(self, writer, ttFont):
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writer.comment("Most of this table will be recalculated by the compiler")
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writer.newline()
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formatstring, names, fixes = sstruct.getformat(SINGFormat)
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for name in names:
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value = getattr(self, name)
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writer.simpletag(name, value=value)
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writer.newline()
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writer.simpletag("baseGlyphName", value=self.baseGlyphName)
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writer.newline()
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def fromXML(self, (name, attrs, content), ttFont):
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value = attrs["value"]
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if name in ["uniqueName", "METAMD5", "baseGlyphName"]:
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setattr(self, name, value)
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else:
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try:
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value = safeEval(value)
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except OverflowError:
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value = long(value)
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setattr(self, name, value)
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