qmk_firmware/lib/python/qmk/cli/painter/make_font.py
2022-11-08 15:47:07 +00:00

95 lines
4.4 KiB
Python

"""This script automates the conversion of font files into a format QMK firmware understands.
"""
import re
import datetime
from io import BytesIO
from qmk.path import normpath
from qmk.painter_qff import QFFFont
from qmk.painter import render_header, render_source, render_license, render_bytes, valid_formats
from milc import cli
@cli.argument('-f', '--font', required=True, help='Specify input font file.')
@cli.argument('-o', '--output', required=True, help='Specify output image path.')
@cli.argument('-s', '--size', default=12, help='Specify font size. Default 12.')
@cli.argument('-n', '--no-ascii', arg_only=True, action='store_true', help='Disables output of the full ASCII character set (0x20..0x7E), exporting only the glyphs specified.')
@cli.argument('-u', '--unicode-glyphs', default='', help='Also generate the specified unicode glyphs.')
@cli.argument('-a', '--no-aa', arg_only=True, action='store_true', help='Disable anti-aliasing on fonts.')
@cli.subcommand('Converts an input font to something QMK understands')
def painter_make_font_image(cli):
# Create the font object
font = QFFFont(cli)
# Read from the input file
cli.args.font = normpath(cli.args.font)
font.generate_image(cli.args.font, cli.args.size, include_ascii_glyphs=(not cli.args.no_ascii), unicode_glyphs=cli.args.unicode_glyphs, use_aa=(False if cli.args.no_aa else True))
# Render out the data
font.save_to_image(normpath(cli.args.output))
@cli.argument('-i', '--input', help='Specify input graphic file.')
@cli.argument('-o', '--output', default='', help='Specify output directory. Defaults to same directory as input.')
@cli.argument('-n', '--no-ascii', arg_only=True, action='store_true', help='Disables output of the full ASCII character set (0x20..0x7E), exporting only the glyphs specified.')
@cli.argument('-u', '--unicode-glyphs', default='', help='Also generate the specified unicode glyphs.')
@cli.argument('-f', '--format', required=True, help='Output format, valid types: %s' % (', '.join(valid_formats.keys())))
@cli.argument('-r', '--no-rle', arg_only=True, action='store_true', help='Disable the use of RLE to minimise converted image size.')
@cli.argument('-w', '--raw', arg_only=True, action='store_true', help='Writes out the QFF file as raw data instead of c/h combo.')
@cli.subcommand('Converts an input font image to something QMK firmware understands')
def painter_convert_font_image(cli):
# Work out the format
format = valid_formats[cli.args.format]
# Create the font object
font = QFFFont(cli.log)
# Read from the input file
cli.args.input = normpath(cli.args.input)
font.read_from_image(cli.args.input, include_ascii_glyphs=(not cli.args.no_ascii), unicode_glyphs=cli.args.unicode_glyphs)
# Work out the output directory
if len(cli.args.output) == 0:
cli.args.output = cli.args.input.parent
cli.args.output = normpath(cli.args.output)
# Render out the data
out_data = BytesIO()
font.save_to_qff(format, (False if cli.args.no_rle else True), out_data)
out_bytes = out_data.getvalue()
if cli.args.raw:
raw_file = cli.args.output / (cli.args.input.stem + ".qff")
with open(raw_file, 'wb') as raw:
raw.write(out_bytes)
return
# Work out the text substitutions for rendering the output data
subs = {
'generated_type': 'font',
'var_prefix': 'font',
'generator_command': f'qmk painter-convert-font-image -i {cli.args.input.name} -f {cli.args.format}',
'year': datetime.date.today().strftime("%Y"),
'input_file': cli.args.input.name,
'sane_name': re.sub(r"[^a-zA-Z0-9]", "_", cli.args.input.stem),
'byte_count': len(out_bytes),
'bytes_lines': render_bytes(out_bytes),
'format': cli.args.format,
}
# Render the license
subs.update({'license': render_license(subs)})
# Render and write the header file
header_text = render_header(subs)
header_file = cli.args.output / (cli.args.input.stem + ".qff.h")
with open(header_file, 'w') as header:
print(f"Writing {header_file}...")
header.write(header_text)
header.close()
# Render and write the source file
source_text = render_source(subs)
source_file = cli.args.output / (cli.args.input.stem + ".qff.c")
with open(source_file, 'w') as source:
print(f"Writing {source_file}...")
source.write(source_text)
source.close()