alehelandClaude Opus 5.5 0b63f5a4ba fix(edit): check page backdrops with one page-tree walk per batch ...

Review of #2815: `page_of` built every page to return one, and the Add
Background dialog checked 24 pages a frame that way, so a frame cost
24 page-tree walks (93 ms at 5,000 pages, 385 ms at 20,000).

- `page_backdrops(doc, pages)` walks the tree once for a batch; the
  dialog checks one batch a frame and `doc_backdrops` one batch in all.
  A page past the end answers None without hiding the others (the
  viewer's page count can disagree with the page tree's).
- `scan` and `replace` take the page; `add_background` no longer walks
  the tree twice more per page to replace a backdrop.
- Tests: 4,000 pages checked in one batch under a generous bound (17.6 s
  with the old lookup), batch order and missing pages, and a background
  over several pages sharing streams, replaced and restored.

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

2026-10-17 05:43:46 +02:00

..

src

fix(edit): check page backdrops with one page-tree walk per batch

2026-10-17 05:43:46 +02:00

Cargo.toml

Preserve source fonts in text editing and resize clipped artwork (#1116)

2026-10-11 20:27:55 -04:00