- expand_defn: dedup the <1px baseline LOD branch the same way the <5px
greek branch does, so colour-split MTEXT no longer stacks N overlapping
baselines (one per \C segment) over the same OBB.
- sysfont: memoise canonical_family_name process-wide. resolve_font calls
it once per word on the MTEXT measure hot path and Face::resolve re-runs
it right after; the fontdb query + linear family scans were uncached.
- dimension/multileader/table: reword the 6 fill_tris_low FIXMEs. They
cited a stale line and the wrong consumer — these fills render on the
top-level path (panic-safe .get().unwrap_or), not the block cache, so
they cannot trip emit_wire's debug_assert. State the real status:
latent f32-precision debt, not a crash. Also fix the mis-indented
text-fill WireModel in dimension.rs.
- tests: add a host-independent colour-split test (two \C segments in a
block keep ≥2 distinct wire colours — guards the per-wire colour fix)
and a TTF-gated UTM fill test (paired, non-zero fill_tris_low). Note the
arial-style test's LFF-fallback limitation.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
resolve_font previously returned &str, passing raw stems like "arial" verbatim to Face::resolve. System font lookup requires the canonical family name ("Arial"), so inline \f/\F overrides from block-nested MTEXT were silently unresolvable and fell through to no geometry.
Change resolve_font to return Cow<'a, str>:
- no override -> Borrowed(base), zero allocation
- LFF built-in -> Borrowed(font), zero allocation
- system font resolved -> Owned(canonical), one allocation
- unresolvable -> Borrowed(base), falls back to style font
All 4 call sites updated to &font_name (&Cow<str> derefs to &str).
Adds two unit tests covering the fallback and TTF-stem-to-family-name paths. Adds integration test verifying block-nested MTEXT produces geometry and correctly separates outline/fill wires.
A dimension's drawn geometry lives in a baked anonymous *D block. COPY
cloned the Dimension entity (translating its definition points) but left
its block_name pointing at the source block, whose sub-entities stay at
the original location — so the copy rendered on top of the original and
appeared not to copy at all.
Add `clone_transformed_block`: when copying a dimension that has a baked
block, duplicate that block under a fresh *D name with every sub-entity
transformed by the same offset, and repoint the copy at it. The copy now
lands at the drop point with its baked geometry and text preserved (no
synthesis, so diameter/radius values stay correct). Covered by a portable
regression test.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
