def select(self, spec):
current = spec.get('face', _ctx._typestyle.face)
if isinstance(current, basestring):
current = font_face(current)
axes = ('weight','width','italic','variant')
opts = {k:v for k,v in spec.items() if k in axes}
defaults = dict( (k, getattr(current, k)) for k in axes + ('wid', 'wgt'))
# map the requested weight/width onto what's available in the family
w_spans = {"wgt":[1,14], "wid":[-15,15]}
for axis, num_axis in dict(weight='wgt', width='wid').items():
w_vals = [getattr(f, num_axis) for f in self._faces.values()]
w_spans[num_axis] = [min(w_vals), max(w_vals)]
dst = opts if axis in opts else defaults
wname, wval = self._closest(axis, opts.get(axis, getattr(current,axis)))
dst.update({axis:wname, num_axis:wval})
def score(axis, f):
bonus = 2 if axis in opts else 1
val = opts[axis] if axis in opts else defaults.get(axis)
vs = getattr(f,axis)
if axis in ('wgt','wid'):
w_min, w_max = w_spans[axis]
agree = 1 if val==vs else -abs(val-vs) / float(max(w_max-w_min, 1))
elif axis in ('weight','width'):
# agree = 1 if (val or None) == (vs or None) else 0
agree = 0
else:
agree = 1 if (val or None) == (vs or None) else -1
return agree * bonus
scores = ddict(int)
for f in self.faces.values():
# consider = 'italic', 'weight', 'width', 'variant', 'wgt', 'wid'
# print [score(axis,f) for axis in consider], [getattr(f,axis) for axis in consider]
scores[f] += sum([score(axis,f) for axis in 'italic', 'weight', 'width', 'variant', 'wgt', 'wid'])
candidates = [dict(score=s, face=f, ps=f.psname) for f,s in scores.items()]
candidates.sort(key=itemgetter('ps'))
candidates.sort(key=itemgetter('score'), reverse=True)
# for c in candidates[:10]:
# print " %0.2f"%c['score'], c['face']
return odict( (c['face'],c['score']) for c in candidates)
def __init__(self, txt):
# configure the parsing machinery/callbacks
p = expat.ParserCreate()
p.StartElementHandler = self._enter
p.EndElementHandler = self._leave
p.CharacterDataHandler = self._chars
self._expat = p
# set up state attrs to record the parse results
self.stack = []
self.cursor = 0
self.regions = ddict(list)
self.body = []
try:
# parse the input xml string
if isinstance(txt, unicode):
txt = txt.encode('utf-8')
wrap = "<%s>" % ">%s</".join([DEFAULT]*2)
self._expat.Parse(wrap%txt, True)
except expat.ExpatError, e:
# go a little overboard providing context for syntax errors
line = self.xml.split('\n')[e.lineno-1]
self._expat_error(e, line)
