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Numbers Without Units Are Points: picas fields, on by default (review of #486)

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The option tells points from picas, where a bare `12` could be either: the
reference app dims it unless a unit is Picas, and it starts on. A number typed
with no unit into a field in picas is now read in points with it on (the
default again, as before #486), and in picas with it off; fields in any other
unit read it in their unit either way, as there. The Preferences dialog dims
the checkbox unless one of the Units is Picas.

The fields learn the preference when it changes, through
`prefs_dialog::apply_runtime` as Scrub Numeric Fields does, rather than from a
write into the egui context every frame. Tests for picas and other fields, the
wiring and the dimming; docs/mcp.md and ROADMAP say so.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
bflatastic
2026-10-08 20:22:11 +07:00
co-authored by Claude Opus 5.5
parent b1aac0cc1b
commit 077e4f34ec
7 changed files with 73 additions and 30 deletions
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docs/mcp.md
+4 -3
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@@ -1326,9 +1326,10 @@ three: General (rulers, positions and sizes, the Info panel, dialog distances, c
(`document.inspect` → `units`): `document.setUnits {units}` (Document Setup) sets it for that document, and
`prefs.set {key: "unitsGeneral", value}` sets it for the active document too (one undo step) and is the units
`file.new` starts in when it gets no `units`. Stroke and Type are the preferences `unitsStroke` and `unitsType`.
`numbersWithoutUnitsArePoints` (off by default) makes the desktop app's length fields read a number typed with no
unit in points whatever the field's unit (`12 mm` still reads as millimetres); command params are in points either
way.
`numbersWithoutUnitsArePoints` (on by default) makes the desktop app's length fields in picas read a number typed
with no unit in points (`12` is 12 pt, `2p6` and `1p` stay picas, `12 mm` millimetres); off, it is in picas. Fields in
other units read it in their unit either way, and the Preferences dialog dims the option unless a unit is Picas.
Command params are in points either way.
`prefs.list` marks the length preferences (`keyboardIncrement`, `cornerRadius`, `pasteOffset`, `gridlineEvery`,
`typeSizeIncrement`, `baselineShiftIncrement`) with `measure: "general"|"type"`; they are kept in points and also take
a string with a unit. Unit names: `Points`, `Picas`, `Inches`, `Millimeters`, `Centimeters`, `Pixels`, `Feet & Inches`,