Guides dragged out of a ruler did not snap at all (only Shift to the ruler's
ticks): they now go through the engine (`Session::ruler_guide`, a
`NewGuide` previewing `guide.add`, one undo step) and snap as a moved guide
does: with Smart Guides to the edges, centres (so the sides' midpoints) and
anchors of the art and of the artboards, labelled; with Smart Guides off,
View > Snap to Point pulls new and moved guides onto anchors. Moving art
with the Selection tool already snapped flush to artboard edges and centres
with Smart Guides on; a test now covers it.
Artboard guides: `Guide.artboard` holds an artboard id (written only when
set, so canvas guides save as before and older files open unchanged).
`guide.add {artboard}` makes one, `guide.list` reports it; a guide dragged
out of a ruler with the Artboard tool belongs to the active artboard. It is
drawn, picked and snapped to across its artboard only, moves with it
(`artboard.move`, a pure move in `artboard.setProps`, `artboard.rearrange`),
is copied with it (`artboard.duplicate`, Alt-drag copy) and deleted with it
(`artboard.delete`, the guide selection kept in step).
Guides as Layers rows with their own lock and hide (part d) stay open: ruler
guides are not layer nodes; Lock Guides locks them all, and Make Guides
paths are Layers rows already. Listed in the ROADMAP parity row.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The engine kept its own copy of Document::next_layer_name after #353; the
document's now counts sublayers too, so the engine uses it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Art in a sublayer is now selected as objects (clicks, marquee, Select All, the
Select menu), sublayers select in their own colour, and hidden, locked or
template sublayers block clicks. Layer Options gain Preview (per-layer outline)
and Dim Images. New and fixed layer.* commands for the Layers panel: setCurrent
and highlight (rows at any depth), selectAll, move (reparent with cycle and
nesting checks, Alt copies), delete/duplicate rows, merge, flatten, collect,
release to layers, reverse, template, hide/outline/lock others and their
show/preview/unlock all, locate.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Paste (also without formatting) goes to the centre of the view
(edit.paste {center}); Paste in Front/Back with nothing selected go to
the top/bottom of the current layer, in order; Paste on All Artboards
keeps the objects' offset to the artboard they were copied from.
layer.pasteRemembersLayers {on?} (document flag paste_remembers_layers,
saved, document.inspect) pastes objects back into the layers they came
from by name, making missing ones; the Layers panel now has its menu
with the layer commands and the check item. The Paste menu items are
enabled while the system clipboard holds SVG (looked at once per frame
at most, a few times a second).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Clicking a Layers panel target circle runs `layer.target {id}`: a layer gets its art
selected and becomes the target (`Selection.target`) of the appearance, effect,
transparency and opacity-mask commands, which then edit the layer itself; the
Appearance panel lists it. Dragging a circle onto another runs
`appearance.transfer {source, target, copy?}` (Alt copies), dropping it on the trash
clears it. Filled dots also mark groups and layers with fills of their own, masked
objects get a dashed underline, and while an opacity mask is edited the panel lists
only an `<Opacity Mask>` entry and the tab says so.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
layer.clippingMask.toggle {id?} -> {clip}: the top object of the current
layer (or of the one selected group, or of `id`) becomes the clipping path,
unpainted and moved to the bottom so art added later is clipped too; pressing
the button again releases the mask and leaves the path unpainted. One undo
step. The Layers panel button runs it and underlines clipping-path names.
Model: NodeKind::Layer.clip (skipped when false). Clipped layers render, hit
test, bound, and export to SVG and PDF like clip groups (Node::clips /
set_clips); the clip-path helpers are shared with Make/Release Clipping Mask.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
