bflatasticandClaude Opus 5.5 0687d2d127 Type: Paragraph Direction instead of an Automatic alignment toggle; bidi only where needed (review of #300) ...

Illustrator sets a paragraph's direction (Left-to-Right / Right-to-Left
Paragraph Direction in the Paragraph panel, with the Middle Eastern
options) and keeps its alignment buttons physical; it has no automatic
alignment toggle. So:

- ParaStyle.direction (None: from each paragraph's first strong
  character, as before; written only when set), the Paragraph panel's two
  direction buttons with Show Indic Options (original icons), and
  text.setFormat {direction: "auto"|"leftToRight"|"rightToLeft"}. The
  layout uses it as the base direction.
- The Automatic alignment check box is gone. Justify::Auto stays as the
  start of the paragraph's direction, set on new type only (text.create,
  the Type tools, with the mojikumi default in one new_type_para()):
  TextObject::point is Left again, so importers (PDF, SVG, DXF, EMF) keep
  their own alignment. The alignment buttons show what Auto resolves to.
- Bidi only where there is something right to left: plain paragraphs skip
  the algorithm (no per-layout allocation), it runs once per paragraph
  (shaping takes the paragraph's levels instead of recomputing them; path
  type computed it four times), and the shaper keeps Han, Hiragana,
  Katakana and Bopomofo in one segment (splitting at every change of
  script cost Japanese text a shaper call per kana-kanji switch).
- Vertical type keeps its logical order, so its glyphs and lines are not
  marked right to left (the caret no longer runs backwards down a column).
- PDF import puts Hebrew and Arabic, which PDFs (and VectorCraft's own
  export) draw in visual order, back in logical order with the direction
  that shows it as drawn; with bidi layout it came back mirrored.
- SVG import pins the direction SVG implies (left to right unless
  direction: rtl); SVG export also outlines right-to-left paragraphs.
- Docs (development.md), ROADMAP (folded into the Type entry, Type core
  row) and README updated; catalog rows for the new labels.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

2026-10-08 05:25:01 +07:00

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