Double-click rename did nothing and ratio edits were lost when switching
scales — and on drawings saved by other programs nothing could be edited
at all.
- Fallback scales were virtual (no Scale objects), so edit/rename no-oped;
materialize the standard set into real staged objects when the manager
opens, reverted on close unless applied.
- On third-party DWGs the mutators walked the root named-objects dict ->
ACAD_SCALELIST, which can be unreachable, and matched dictionary keys
that are internal ids (*A1, A0) rather than scale names. Locate the
scale-list dict robustly and match scales by object name + handle.
- Rename rows inline via double-click; repair a dangling current-scale
header pointer on staged rollback.
- Stage text/mleader style-manager edits on switch so they persist like
the scale manager.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The scale manager now runs as a transaction, matching the style managers'
staging: New starts a blank editor draft (nothing is added to the drawing
until Apply), Delete removes immediately but staged, and closing the window
without Apply restores the snapshot taken on open — so a scale created or
deleted mid-session is discarded on cancel. Apply commits the staged list
changes as a single undo entry. This replaces the earlier behaviour where
New copied the selected scale and edits landed immediately.
A `changed` flag guards the commit so a no-op / failed Apply (blank or
invalid fields, or an edit that didn't apply) no longer dirties the drawing
or pushes a phantom undo entry. Set Current is deliberately outside the
transaction — it takes effect immediately like the scale pill (and syncs
CANNOSCALEVALUE), so it is never rolled back on close. Renaming the current
scale follows the pointer; editing one of the built-in fallback scales (shown
when the drawing has no scale list) materialises it as a real scale; the
snapshot restore touches only the ACAD_SCALELIST root entry.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Replace the scale popup's inline delete/add affordances with a single
"Manage scales..." row that opens a proper manager, matching the style
managers: it reuses the shared style-manager palette and chrome (toolbar +
list + editor frame), so it looks and behaves like the Text / Dim / MLeader
managers.
The manager lists the drawing's annotation scales (name + ratio, the current
one checked) and edits them through a Name / Paper units / Drawing units
editor: New adds a scale from the fields, Apply renames / re-ratios the
selected one, Delete removes it (never the current scale), and Set Current
makes the selected scale the model-space annotation scale. Backed by
Scene::add_scale / remove_scale / edit_scale on ACAD_SCALELIST.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
