* Implement snap to grid
- Moves positioning logic to LGraph
- Simplifies code
- Adds Pointer API to alt-clone node
- Removes always_round_positions, replaced by always snap to grid (default size is 1 when always snapping)
Fix refator error
* Fix group items snapped without group
* Allow snapping of all items
- Add snapToGrid to Positionable
- Impl. on all types
- Deprecated: alignToGrid is now a wrapper
* Fix test import alias, update expectations
* Prevent desync of before / after change events
Adds ability to perform late binding of finally() during drag start.
* nit - Refactor
* Fix unwanted snap on node/group add
* nit - Doc
* Add shift key state tracking for snap to grid
Private impl., no state API as yet.
* Add snap guides rendering
Nodes, reroutes
* Optimisation - reroute rendering
Fixes exponential redraw
* Add snap guidelines for groups
* Add Reroute
- Initial Reroute implementation
- LLink and Reroute both implement the new LinkSegment interface
- LinkSegments can have a parentId, which always points to a Reroute
* Narrow TS type of schema v0.4 extras
* Add reroutes to schema 0.4
Use extras.reroutes to store additional data
* Add Reroute POC to LLink
* Add Reroute rendering
* Add Reroute context menu - Delete Reroute
* Update delete selected - include reroutes & groups
* Add Reroute select & move
* Include reroutes in area-select
* Move disconnect link logic to LLink
* Add Reroute connect
* nit
* Add Reroute support - connecting links
* Add Add Reroute from link menu (menu)
* nit
* Add shift-drag from reroute to add new link
* Prevent Reroutes from disappearing
Add keepReroutes option to prevent Reroute GC
* Add fourth param to connectInputToOutput
* Allow both connecting in/out to be null
* Move ConnectingLink start pos to Reroute
* Add link render options
* Refactor renderLink - spline / bezier
* Refactor renderLink - linear, straight
* Fix centre points on all link types
Improves link render time
* [Refactor] Generic recursive interface / flat set
* nit
* Allow Reroutes to be members of groups
* Start links from the closest reroute
For the "shift-click drag link from link" feature
* Add Reroutes using alt-click on link paths
* nit - Refactor
* nit - Refactor
* Fix reroute deselect UX
Temporary workaround
* Add Reroute link centre-marker handling
* Add optional link arrow markers
Add enum for link markers
-> Pointing the way forward ->
Set default centre marker to arrow
* Add module export: LinkMarkerShape
* Add link arrow direction for all link types
* Add Reroute auto-swivel with custom curves
* Add state switch to disable reroutes
Works at root of all canvas interactions, should leave existing reroutes untouched but invisible until e.g. links are edited / changed.
* Fix cannot deselect when reroutes disabled
* Include reroutes in select-all
