3 people f4dfc8eb85 Fix CJK fallback mixing serif/sans faces within one run (#567) ...

* Fix CJK fallback mixing serif/sans faces within one run

Per-character fallback picked the first covering face in load order, so a
run without an East Asian font could draw JIS-covered ideographs in a
bundled Japanese Mincho and simplified-only ones in the SC sans, mixing
serif and sans glyphs even inside one word. Pick one face covering all
of the run's East Asian characters when available, keeping the
per-character fallback when none does.

* Review fixes for #567: cache the run-level CJK fallback

- fallback_for_east_asian is cached per (character set, excluded face,
  bold, italic) and dropped when the loaded faces change or the system
  fallback is switched, like the per-character cache, so relayout doesn't
  redo the search; the cache is bounded in entries and in key size.
- loaded_fallback and loaded_covering share one fallback_order helper.
- Test for the cache.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

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Co-authored-by: Brandon Thomas <echelon@gmail.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-12 04:24:03 -04:00

..

src

Fix CJK fallback mixing serif/sans faces within one run (#567)

2026-10-12 04:24:03 -04:00

tests

M0.1–M0.6: workspace, geom, document model, fonts, layout, render

2026-10-05 22:30:16 -04:00

build.rs

Chinese interface shows every character instead of boxes on Windows (#248)

2026-10-10 13:04:18 -04:00

Cargo.toml

Add fonts at run time: Add Font…, drop a font file, font.add (#582) (#668)

2026-10-12 00:38:20 -04:00