khodowany
37 lines
1.5 KiB
Python
37 lines
1.5 KiB
Python
"""Extract notation glyph bounds from the shipped OTF, in staff-space units."""
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import argparse
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from pathlib import Path
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from fontTools.pens.boundsPen import BoundsPen
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from fontTools.ttLib import TTFont
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def generate(font_path, output):
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with TTFont(font_path) as font:
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glyphs, cmap = font.getGlyphSet(), font.getBestCmap()
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units = font['head'].unitsPerEm / 4
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ranges = [(0xE050, 0xE06F), (0xE080, 0xE09F), (0xE0A0, 0xE0A5),
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(0xE101, 0xE102), (0xE1E7, 0xE1E8), (0xE240, 0xE250),
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(0xE260, 0xE270), (0xE4E0, 0xE4EE)]
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records = []
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for start, end in ranges:
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for codepoint in range(start, end):
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if codepoint not in cmap:
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continue
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pen = BoundsPen(glyphs)
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glyphs[cmap[codepoint]].draw(pen)
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if pen.bounds:
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box = ', '.join(f'{v / units:.8f}F' for v in pen.bounds)
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records.append(f' {{{codepoint}, {{{box}}}}},')
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output.parent.mkdir(parents=True, exist_ok=True)
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output.write_text('#pragma once\n#include <array>\n#include <cstdint>\nnamespace vamp_zero::font_data {\n'
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'struct glyph { std::int32_t codepoint; std::array<float, 4> bounds; };\n'
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f'inline constexpr std::array<glyph, {len(records)}> glyphs = {{{{\n'
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+ '\n'.join(records) + '\n}};\n}\n', encoding='ascii')
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if __name__ == '__main__':
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument('--font', type=Path, required=True)
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parser.add_argument('--output', type=Path, required=True)
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args = parser.parse_args()
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generate(args.font, args.output)
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