55 lines
1.7 KiB
Python
55 lines
1.7 KiB
Python
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"""ttLib.macUtils.py -- Various Mac-specific stuff."""
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from io import BytesIO
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from fontTools.misc.macRes import ResourceReader, ResourceError
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def getSFNTResIndices(path):
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"""Determine whether a file has a 'sfnt' resource fork or not."""
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try:
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reader = ResourceReader(path)
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indices = reader.getIndices("sfnt")
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reader.close()
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return indices
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except ResourceError:
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return []
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def openTTFonts(path):
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"""Given a pathname, return a list of TTFont objects. In the case
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of a flat TTF/OTF file, the list will contain just one font object;
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but in the case of a Mac font suitcase it will contain as many
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font objects as there are sfnt resources in the file.
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"""
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from fontTools import ttLib
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fonts = []
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sfnts = getSFNTResIndices(path)
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if not sfnts:
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fonts.append(ttLib.TTFont(path))
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else:
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for index in sfnts:
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fonts.append(ttLib.TTFont(path, index))
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if not fonts:
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raise ttLib.TTLibError("no fonts found in file '%s'" % path)
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return fonts
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class SFNTResourceReader(BytesIO):
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"""Simple read-only file wrapper for 'sfnt' resources."""
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def __init__(self, path, res_name_or_index):
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from fontTools import ttLib
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reader = ResourceReader(path)
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if isinstance(res_name_or_index, str):
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rsrc = reader.getNamedResource("sfnt", res_name_or_index)
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else:
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rsrc = reader.getIndResource("sfnt", res_name_or_index)
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if rsrc is None:
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raise ttLib.TTLibError("sfnt resource not found: %s" % res_name_or_index)
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reader.close()
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self.rsrc = rsrc
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super(SFNTResourceReader, self).__init__(rsrc.data)
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self.name = path
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