4 people d96bb50161 Add Anchor Point and Delete Anchor Point tools (#1044) (#2756) ...

Paths could be reshaped after drawing since #865, but the number of
anchors could not change. Two new engine commands do that, and two tools
in the Pen flyout drive them on the canvas.

- photocraft_vector::edit::add_anchor splits the segment at t with de
  Casteljau, so a curve keeps its shape and gets a smooth anchor; a
  straight segment gets a corner on the line. delete_anchor joins the
  neighbours keeping their handles, drops an emptied subpath and refuses
  to remove a path's only anchor.
- path.addAnchor / path.deleteAnchor take the same targets as the other
  point edits (work path, saved path by name, shape layer path, vector
  mask) and record one history step each.
- Tool::AddAnchorPoint / DeleteAnchorPoint join the P group after the Pen.
  They act on Direct Selection's paths, highlight the segment or anchor
  under the pointer, show a +/- cursor badge, swap with Alt and turn into
  Direct Selection with Cmd/Ctrl. An edit clears a Direct Selection on the
  same path so it never points at a shifted anchor.
- Icons derived from Lucide pen-tool (ATTRIBUTION.md), hints and tool
  names in all 16 catalogs, README tool list, roadmap.

Co-authored-by: Fabio Lussi <198260595+itrycodinganditsbad@users.noreply.github.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Brandon Thomas <echelon@gmail.com>

2026-10-11 05:48:07 -04:00

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