pmacs/pmacs-gpu
Levi Neuwirth 1670233057 fix(gpu): gutter click classification + fit guard; test v14 wire round-trip
Three correctness findings from the sub-arc 3 review:

1. (F1) GPU gutter clicks weren't classified before text hit-testing — the
   hit path just subtracted `text_left()` and called `buffer.hit()`, so a
   click in the gutter band fed glyphon a negative x (undefined) and gave
   future gutter markers no stable seam. Extracted `gutter_aware_rel_x`: a
   click left of the text origin clamps to `0.0` (the line start), mirroring
   the TUI's saturate-to-column-0 affordance. The hit path now branches on
   it — the seam a future marker would hook.

2. (F2) The GPU had no fit guard when the gutter consumed the text width.
   The TUI drops the gutter for a too-narrow window; the GPU always grew
   `text_left()` and `text_bounds_right()` floored against `TEXT_LEFT`, so a
   narrow window or very large file could produce `left >= right` (blank /
   undefined render). `gutter_width_px` now drops the gutter when it would
   leave less than `MIN_TEXT_WIDTH_PX` of text past `TEXT_LEFT`.

3. (F3) The v14 `LineNumbers { mode }` shape had no direct postcard
   round-trip (only the version pin + daemon gate). Added one covering all
   four `LineNumberMode` variants, so a future enum reorder can't silently
   shift the wire.

Tests: `gutter_aware_rel_x` clamps the band (and passes through with the
gutter off); a 60px window drops the gutter while an 800px one keeps it;
all four modes round-trip. fmt + clippy --all-targets clean both flavors +
gpu; 1447 lib + 12 protocol + 57 pmacs-gpu tests pass.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014TXbAwk27agwhrNNrhLi2U
2026-07-07 10:33:01 -04:00
..
fonts session 2: pmacs-gpu workspace + wgpu/winit/glyphon hello-world 2026-05-20 10:37:26 -04:00
src fix(gpu): gutter click classification + fit guard; test v14 wire round-trip 2026-07-07 10:33:01 -04:00
Cargo.toml audit remediation: workspace clippy gate + stale metadata + cruft (F-001/F-013/F-015) 2026-07-03 10:31:17 -04:00