Unrelated to the #2135 security fix in the commit before this one: both lines
predate this branch and are rustc/clippy 1.96 lint churn. `cargo clippy
--workspace --all-targets` only warns about them, but `cargo xtask ci` runs it
with `-D warnings` (xtask/src/main.rs), so the gate fails before any test runs.
- `clippy::nonminimal_bool` in `slide_overlay::shadow` (reported twice, two
overlapping suggestions on the one expression): `!(A && B) || !C || !D` is
`!(A && B && C && D)` by De Morgan, which is what the line now says. The
operands are pure float comparisons and `is_finite` guards with no side
effects, so this is an exact rewrite — a NaN or infinite `mx0`/`my0` still
makes `shadow` return without drawing, as before. (Clippy's second suggestion
drops the `my0.is_finite()` term and is *not* equivalent; it is not used.)
- `clippy::drop_non_drop` on `drop(write)` in
`same_folder_as_original_refuses_photos_without_a_folder`. The line is not
dead: `write` is a closure holding a mutable borrow of `written`, and the
`drop` ended that borrow so the next assertion could read it. The closure now
lives in a block of its own instead, which ends the borrow at the brace
rather than relying on `drop` of a non-`Drop` type. Every assertion of the
test is unchanged.
Co-Authored-By: Claude <noreply@anthropic.com>
- Engine: slide_overlay (OverlaySettings in prefs.json, the new slideshow.overlays
command): identity plate (text, or a PNG/JPEG file with its transparency; size,
colour, opacity; render behind image), rating stars (own vector stars), up to 16
text overlays with tokens ({caption}, {exposure}, {file}, {date}, {focal}… plus
every rename token; unknown tags show as typed and are reported) and a drop
shadow, each at one of nine anchors of the slide or photo plus an offset, kept on
the slide; the export watermark on the photo. Sizes relative to the slide's
shorter side; validated and clamped.
- Drawn by the engine as a second pass over lightcraft_slideshow::compose_with
(new behind hook for "render behind image"); the watermark's text renderer moved
to engine text.rs (TextLayout, Inter + craft-fonts CJK) and is shared; glyphs
off the image are skipped so huge text stays cheap.
- rename::expand_tokens_with lets overlays add tokens without changing rename.
- Playback composes slides when overlays are on; slideshow.preview returns each
overlay's box. Settings > Slideshow > Overlays section with live preview.
- Docs: parity row (partial), whats-new, control/MCP docs, nine locale catalogs.
- Tests: tokens, nine anchors, star count, plate image opacity and missing file,
text shadow, resolution independence, hostile input, big-slide cost, CJK with
craft-fonts, prefs persistence, preview and headless playback pixel checks.
