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Brandon ThomasandClaude Opus 5.5
ba56742fa9
* Emoji: colour glyphs, and emoji take the colour emoji font Emoji were drawn as black outlines from a symbol font, with ZWJ sequences (families, flags) falling apart into their parts. Now: - an emoji cluster (emoji presentation, U+FE0F, ZWJ between pictographs, skin tones, regional indicators, keycaps) takes an installed colour font (COLR, CBDT, sbix or SVG tables) before the document's fonts, so its sequences ligate as in PowerPoint; U+FE0E keeps a plain face; - COLR v0 and v1 glyphs are painted in their CPAL colours (solid fills, linear, radial and sweep gradients, transforms, composite modes), with palette index 0xFFFF in the text colour. A tiny COLRv0 test font (two squares, CC0, regenerated by make_colr_font.py) backs the render test. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> * Render: lock skrifa for colour glyphs Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
52 lines
1.8 KiB
Python
52 lines
1.8 KiB
Python
"""Build the COLR test font: DeckCraft Colr Squares (contributor-original, CC0-1.0).
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Usage: python make_colr_font.py colr-squares.ttf (needs fontTools)
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U+E000: a 1000x1000 red square (palette 0) with a 400x400 blue square (palette 1) in its middle.
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U+E001: a 1000x1000 square in the text colour (palette index 0xFFFF).
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Plain outlines of the base glyphs are a single square, as colour fonts carry for renderers
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without colour support.
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"""
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import sys
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from fontTools.fontBuilder import FontBuilder
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from fontTools.pens.ttGlyphPen import TTGlyphPen
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from fontTools.colorLib.builder import buildCOLR, buildCPAL
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def square(x0, y0, x1, y1):
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pen = TTGlyphPen(None)
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pen.moveTo((x0, y0))
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pen.lineTo((x0, y1))
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pen.lineTo((x1, y1))
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pen.lineTo((x1, y0))
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pen.closePath()
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return pen.glyph()
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def empty():
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return TTGlyphPen(None).glyph()
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order = [".notdef", "space", "redblue", "ink", "big", "small"]
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fb = FontBuilder(1000, isTTF=True)
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fb.setupGlyphOrder(order)
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fb.setupCharacterMap({0x20: "space", 0xE000: "redblue", 0xE001: "ink"})
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fb.setupGlyf({
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".notdef": empty(),
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"space": empty(),
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"redblue": square(0, 0, 1000, 1000),
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"ink": square(0, 0, 1000, 1000),
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"big": square(0, 0, 1000, 1000),
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"small": square(300, 300, 700, 700),
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})
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fb.setupHorizontalMetrics({g: (1000, 0) for g in order})
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fb.setupHorizontalHeader(ascent=1000, descent=0)
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fb.setupNameTable({"familyName": "DeckCraft Colr Squares", "styleName": "Regular"})
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fb.setupOS2(sTypoAscender=1000, sTypoDescender=0, usWinAscent=1000, usWinDescent=0)
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fb.setupPost()
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fb.font["COLR"] = buildCOLR({"redblue": [("big", 0), ("small", 1)], "ink": [("big", 0xFFFF)]}, version=0)
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fb.font["CPAL"] = buildCPAL([[(1.0, 0.0, 0.0, 1.0), (0.0, 0.0, 1.0, 1.0)]])
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fb.save(sys.argv[1])
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print("saved", sys.argv[1])
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