1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
#!/usr/bin/env python
import io
import sys
import json
import typing
import os.path
import argparse
import subprocess
class FontArg(object):
def __init__(self, d):
self.font = d['font']
self.range = d.get('range')
self.symbols = d.get('symbols')
def gen_lvconv_line(dest: str, size: int, bpp: int, fonts: typing.List[FontArg], compress:bool=False):
args = ['lv_font_conv', '--size', str(size), '--output', dest, '--bpp', str(bpp), '--format', 'lvgl']
if not compress:
args.append('--no-compress')
for font in fonts:
args.extend(['--font', font.font])
if font.range:
args.extend(['--range', font.range])
if font.symbols:
args.extend(['--symbols', font.symbols])
return args
def main():
ap = argparse.ArgumentParser(description='auto generate lvGL font files from fonts')
ap.add_argument('config', type=str, help='config file to use')
ap.add_argument('-e', '--enable', type=str, action='append', help='optional feature to enable in font generation', default=[], metavar='features', dest='features')
ap.add_argument('-f', '--font', type=str, action='append', help='Choose specific fonts to generate (default: all)', default=[])
args = ap.parse_args()
if not os.path.exists(args.config):
sys.exit(f'Error: the config file {args.config} does not exist.')
if not os.access(args.config, os.R_OK):
sys.exit(f'Error: the config file {args.config} is not accessable (permissions?).')
with open(args.config, 'r') as fd:
data = json.load(fd)
for enabled_feature in args.features:
if enabled_feature not in data['features']:
sys.exit(f'Error: the requested feature {enabled_feature} does not exist in {args.config}.')
for (name,font) in data['fonts'].items():
if args.font and name not in args.font:
continue
sources = font.pop('sources')
if 'patches' in font:
patches = font.pop('patches')
else:
patches = None
for enabled_feature in args.features:
if name in data['features'][enabled_feature]:
sources.extend(data['features'][enabled_feature][name])
font['fonts'] = [FontArg(thing) for thing in sources]
line = gen_lvconv_line(f'{name}.c', **font)
subprocess.check_call(line)
if patches:
for patch in patches:
subprocess.check_call(patch)
if __name__ == '__main__':
main()
|
