79 lines
2.0 KiB
Python
79 lines
2.0 KiB
Python
"""Rudimentary support for loading MutatorMath .designspace files."""
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from __future__ import print_function, division, absolute_import
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import collections
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from fontTools.misc.py23 import *
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try:
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import xml.etree.cElementTree as ET
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except ImportError:
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import xml.etree.ElementTree as ET
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__all__ = ['load', 'loads']
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standard_axis_map = collections.OrderedDict(
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[['weight', ('wght', 'Weight')],
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['width', ('wdth', 'Width')],
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['slant', ('slnt', 'Slant')],
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['optical', ('opsz', 'Optical Size')],
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['custom',('xxxx', 'Custom')]]
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)
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def _xmlParseLocation(et):
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loc = {}
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for dim in et.find('location'):
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assert dim.tag == 'dimension'
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name = dim.attrib['name']
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value = float(dim.attrib['xvalue'])
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assert name not in loc
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loc[name] = value
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return loc
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def _loadItem(et):
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item = dict(et.attrib)
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for elt in et:
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if elt.tag == 'location':
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value = _xmlParseLocation(et)
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else:
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value = {}
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if 'copy' in elt.attrib:
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value['copy'] = bool(int(elt.attrib['copy']))
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# TODO load more?!
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item[elt.tag] = value
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return item
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def _load(et):
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ds = et.getroot()
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axisMap = collections.OrderedDict()
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axesET = ds.find('axes')
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if axesET:
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axisList = axesET.findall('axis')
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for axisET in axisList:
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axisName = axisET.attrib["name"]
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labelET = axisET.find('labelname')
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if (None == labelET):
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# If the designpsace file axes is a std axes, the label name may be omitted.
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tag, label = standard_axis_map[axisName]
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else:
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label = labelET.text
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tag = axisET.attrib["tag"]
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axisMap[axisName] = (tag, label)
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masters = []
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for et in ds.find('sources'):
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masters.append(_loadItem(et))
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instances = []
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for et in ds.find('instances'):
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instances.append(_loadItem(et))
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return masters, instances, axisMap
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def load(filename):
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"""Load designspace from a file name or object. Returns two items:
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list of masters (aka sources) and list of instances."""
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return _load(ET.parse(filename))
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def loads(string):
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"""Load designspace from a string."""
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return _load(ET.fromstring(string))
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