e5d411b80d
DRYer with global state stored in fewer places. And only round-tripping through python for font selection, not face creation.
91 lines
2.9 KiB
Python
91 lines
2.9 KiB
Python
#!/usr/bin/env python
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# vim:fileencoding=utf-8
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# License: GPL v3 Copyright: 2016, Kovid Goyal <kovid at kovidgoyal.net>
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import re
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from functools import lru_cache
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from kitty.fast_data_types import (
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FC_SLANT_ITALIC, FC_SLANT_ROMAN, FC_WEIGHT_BOLD, FC_WEIGHT_REGULAR,
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fc_list, fc_match,
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)
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attr_map = {(False, False): 'font_family',
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(True, False): 'bold_font',
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(False, True): 'italic_font',
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(True, True): 'bold_italic_font'}
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def create_font_map(all_fonts):
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ans = {'family_map': {}, 'ps_map': {}, 'full_map': {}}
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for x in all_fonts:
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if 'path' not in x:
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continue
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f = (x.get('family') or '').lower()
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full = (x.get('full_name') or '').lower()
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ps = (x.get('postscript_name') or '').lower()
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ans['family_map'].setdefault(f, []).append(x)
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ans['ps_map'].setdefault(ps, []).append(x)
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ans['full_map'].setdefault(full, []).append(x)
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return ans
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@lru_cache()
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def all_fonts_map(monospaced=True):
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return create_font_map(fc_list(monospaced))
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def list_fonts():
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for fd in fc_list(False):
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f = fd.get('family')
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if f:
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fn = fd.get('full_name') or (f + ' ' + fd.get('style', '')).strip()
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is_mono = fd.get('spacing') == 'MONO'
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yield {'family': f, 'full_name': fn, 'is_monospace': is_mono}
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def find_best_match(family, bold=False, italic=False, monospaced=True):
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q = re.sub(r'\s+', ' ', family.lower())
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font_map = all_fonts_map(monospaced)
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def score(candidate):
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bold_score = abs((FC_WEIGHT_BOLD if bold else FC_WEIGHT_REGULAR) - candidate.get('weight', 0))
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italic_score = abs((FC_SLANT_ITALIC if italic else FC_SLANT_ROMAN) - candidate.get('slant', 0))
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monospace_match = 0 if candidate.get('spacing') == 'MONO' else 1
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return bold_score + italic_score, monospace_match
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# First look for an exact match
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for selector in ('ps_map', 'full_map', 'family_map'):
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candidates = font_map[selector].get(q)
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if candidates:
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candidates.sort(key=score)
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return candidates[0]
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# Use fc-match with a generic family
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family = 'monospace' if monospaced else 'sans-serif'
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return fc_match(family, bold, italic)
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def resolve_family(f, main_family, bold, italic):
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if (bold or italic) and f == 'auto':
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f = main_family
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return f
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def get_font_files(opts):
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ans = {}
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for (bold, italic), attr in attr_map.items():
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rf = resolve_family(getattr(opts, attr), opts.font_family, bold, italic)
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font = find_best_match(rf, bold, italic)
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key = {(False, False): 'medium',
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(True, False): 'bold',
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(False, True): 'italic',
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(True, True): 'bi'}[(bold, italic)]
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ans[key] = font
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return ans
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def font_for_family(family):
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ans = find_best_match(family, monospaced=False)
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return ans, ans.get('weight', 0) >= FC_WEIGHT_BOLD, ans.get('slant', FC_SLANT_ROMAN) != FC_SLANT_ROMAN
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