Files
kitty/kitty/fonts/fontconfig.py
2016-12-07 11:16:10 +05:30

64 lines
1.8 KiB
Python

#!/usr/bin/env python
# vim:fileencoding=utf-8
# License: GPL v3 Copyright: 2016, Kovid Goyal <kovid at kovidgoyal.net>
import re
import subprocess
from collections import namedtuple
from functools import lru_cache
from kitty.fast_data_types import Face
def escape_family_name(name):
return re.sub(r'([-:,\\])', lambda m: '\\' + m.group(1), name)
Font = namedtuple('Font', 'face hinting hintstyle bold italic')
def get_font(query, bold, italic):
query += ':scalable=true:outline=true'
raw = subprocess.check_output(['fc-match', query, '-f', '%{file}\x1e%{hinting}\x1e%{hintstyle}']).decode('utf-8')
parts = raw.split('\x1e')
hintstyle, hinting = 1, 'True'
if len(parts) == 3:
path, hinting, hintstyle = parts
else:
path = parts[0]
hinting = hinting.lower() == 'true'
hintstyle = int(hintstyle)
return Font(path, hinting, hintstyle, bold, italic)
@lru_cache(maxsize=4096)
def find_font_for_character(family, char, bold=False, italic=False):
q = escape_family_name(family) + ':charset={}'.format(hex(ord(char[0]))[2:])
if bold:
q += ':weight=200'
if italic:
q += ':slant=100'
return get_font(q, bold, italic)
@lru_cache(maxsize=64)
def get_font_information(q, bold=False, italic=False):
q = escape_family_name(q)
if bold:
q += ':weight=200'
if italic:
q += ':slant=100'
return get_font(q, bold, italic)
def get_font_files(family):
ans = {}
n = get_font_information(family)
ans['regular'] = Font(Face(n.face), n.hinting, n.hintstyle, n.bold, n.italic)
def do(key):
b = get_font_information(family, bold=key in ('bold', 'bi'), italic=key in ('italic', 'bi'))
if b.face != n.face:
ans[key] = Font(Face(b.face), b.hinting, b.hintstyle, b.bold, b.italic)
do('bold'), do('italic'), do('bi')
return ans