BFlatandClaude Opus 5.5 71c467879d M2: auto layout nesting: one-pass nested hug/fill, coherent sizing, drag across nested frames (#45) ...

Layout (crates/layout):
- Fill children take their size before the frame is sized, so wrapping fill
  text, frames that hug it and grid rows settle in a single pass (three
  levels deep included).
- Fill children share space like CSS flexbox: min and max violations are
  resolved in turn instead of freezing both at once.
- A single child with space-between sits at the start; a wrapped row of only
  fill-height children keeps their height; grids size fill-width children
  before their rows.
- coherent_sizing: Fill only in an auto layout flow on an axis the parent
  doesn't hug, Hug only on auto layout frames and text (a text hugs what its
  resize mode grows); anything else becomes Fixed at its size.

Engine:
- Setting a child to Fill turns a hugging parent Fixed on that axis; a parent
  that starts to hug, layers leaving auto layout and layout.remove fix the
  rest (applied in normalize).
- Moving layers: the deepest auto layout frame under the pointer wins (plain
  frames in a flow are items, not destinations; the dragged layers and their
  descendants are skipped); the frame they come from keeps them near its
  edge. They take the slot (or grid cell) there with the insertion line drawn
  in the gap and the receiving frame outlined; out of auto layout they become
  positioned children of the canvas or plain frame at the drop point. One
  undo step per drag. Slots skip hidden and absolute children.

Tests: crates/layout/src/nested_tests.rs, crates/engine/src/al_nesting_tests.rs.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-10 06:41:11 +07:00

..

src

M2: auto layout nesting: one-pass nested hug/fill, coherent sizing, drag across nested frames (#45)

2026-10-10 06:41:11 +07:00

Cargo.toml

M0.5: layout (auto layout + constraints), format, svg, engine (commands, history, tools, components, styles, variables)

2026-10-09 12:40:18 -04:00