The checkerboard background was rendered as a separate DOM element that stretched to fill the canvas container.
While the canvas width and height are always integers, this background element could have non-integer dimensions, depending on panel sizes.As a result, it could be slightly larger than the canvas, introducing a fine border around the canvas.
This is purely a visual issue, but it's very noticeable when you use the bbox overlay. It also can be noticed with masks that extend beyond the edge of the visible canvas.
- Refactor the checkerboard background to be rendered by the canvas instead of as a DOM element, resolving the issue.
- Add a helper method to get the scaled rect of the stage, updating a few places where we need such a rect.
- Rename `CanvasStageModule.getScaledPixels` method to `unscale`, clarifying its purpose.
Track various canvas states:
- Filtering an entity
- Transforming an entity
- Rasterizing an entity
- Compositing
- Busy (derived from all of the above)
Also track individual entity states:
- Locked
- Disabled
- All of type are hidden
- Has objects
- Interactable (derived from all of the above)
These states then gate various actions. For example:
- Cannot invoke while the canvas is busy.
- Cannot transform, filter, duplicate, or delete when the canvas is busy.
Tool interaction restrictions are not yet implemented.
## Summary
This PR splits the lora.py monolith into separate files. The main
motivation for doing this in a standalone PR is to make the diffs more
interpretable in the [upcoming
changes](https://github.com/invoke-ai/InvokeAI/compare/main...ryan/flux-lora-sidecar)
to support LoRAs for FLUX.
This PR does not make any functional changes - it just moves files
around and changes import paths.
## QA Instructions
I smoke tested generation with LoRA, LoHA, LoKr, and IA3.
## Merge Plan
No special instructions. Merge on approval.
## Checklist
- [x] _The PR has a short but descriptive title, suitable for a
changelog_
- [x] _Tests added / updated (if applicable)_
- [x] _Documentation added / updated (if applicable)_
