khodowany
39 lines
1.4 KiB
Python
39 lines
1.4 KiB
Python
"""The product palette shared by build-time rasterization and both devices."""
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from __future__ import annotations
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import argparse
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import json
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import pathlib
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import re
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PALETTE_PATH = pathlib.Path(__file__).with_name('palette.json')
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COLORS = json.loads(PALETTE_PATH.read_text(encoding='utf-8'))
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def rgb(name: str) -> tuple[int, int, int]:
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value = COLORS[name]
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if not isinstance(value, str) or not re.fullmatch(r'#[0-9a-fA-F]{6}', value):
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raise ValueError(f'invalid palette color: {name}')
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return tuple(int(value[index:index + 2], 16) for index in (1, 3, 5))
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def generate_header(destination: pathlib.Path) -> None:
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lines = ['#pragma once', '', 'namespace vamp_style {', '']
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for name in COLORS:
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if not re.fullmatch(r'[a-z][a-z_]*', name):
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raise ValueError(f'invalid palette name: {name}')
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r, g, b = rgb(name)
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lines.append(f'constexpr auto {name} = vamp_style::color{{{r}, {g}, {b}, 255}};')
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lines.extend(['', '}', ''])
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content = '\n'.join(lines)
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destination.parent.mkdir(parents=True, exist_ok=True)
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if not destination.exists() or destination.read_text() != content:
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destination.write_text(content, encoding='utf-8')
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def main() -> None:
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument('--header', required=True, type=pathlib.Path)
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generate_header(parser.parse_args().header)
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if __name__ == '__main__':
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main()
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