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vectorcraft/crates/text
VictorandClaude Opus 5.5 a275496ef4 G4: Paragraph panel menu › Justification… (word and letter spacing, glyph scaling, auto leading, single word justification)
The Paragraph panel menu's Justification… was a disabled stub, and justified
lines stretched word spaces between fixed limits (80% to 150%).

Each paragraph now has Justification options: Word Spacing, Letter Spacing
and Glyph Scaling (Minimum, Desired, Maximum, in percent), Auto Leading and
Single Word Justification. Desired applies to every line; a justified line
fills its measure with word spacing first, then letter spacing, then glyph
scaling, each within its range, and past them its word spaces take the
rest. The Every-line Composer scores lines by that flexibility. Auto
Leading sets the leading of characters whose leading is Auto. A justified
line holding one word is spread between its letters (Full Justify) or
aligned left, centre or right.

The defaults are the documented ones (80/100/133, 0/0/0, 100/100/100, 120,
Full Justify), saved only when they differ. Because the default maximum
word spacing is 133%, justified paragraphs break differently than before;
the Every-line Composer's second pass is now unbounded for justified text
(it used to give up past four times the stretch and fall back to the
Single-line Composer, which the narrower default range would make common),
and lines that can't stretch at all are still refused.

text.setFormat takes wordSpacing, letterSpacing, glyphScaling ([min,
desired, max] or {min?, desired?, max?}), autoLeading and
singleWordJustification; Minimum ≤ Desired ≤ Maximum must hold or nothing
changes. Paragraph styles carry the options (New and Redefine capture
them), and Reset Panel resets them. Justification… opens a dialog
(ui.justification) with Preview; OK is disabled while a row is out of
order. Live SVG text places characters the options move, and a glyph that
Glyph Scaling scales is stretched to its width; PDF uses the glyphs'
transforms. Vertical type isn't glyph scaled; type on a path doesn't use
the options.

Docs: docs/mcp.md, docs/type-parity.md, docs/gaps.md.

Closes #2755.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-18 12:40:14 +07:00
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