`CanvasCompositorModule` had a fairly inflexible API, only supporting compositing all raster layers or inpaint masks.
The API has been generalized work with a list of canvas entities. This enables `Merge Down` and `Merge Selected` functionality (though `Merge Selected` is not part of this set of changes).
- Rename util to `getImageDTOSafe`
- Update API to accept the same options as RTKQ's `initiate`
- Add `getImageDTO`; while `getImageDTOSafe` returns null if the image is not found, the new util throws
- Update usage of `getImageDTOSafe`
- Allow `uploadImage` util to accept `metadata` to embed in the image
- Update compositor to support `metadata` field when uploading rasterized composite layer
The HTML Canvas context has an `imageSmoothingEnabled` property which defaults to `true`. This causes the browser canvas API to, well, apply image smoothing - everything gets antialiased when drawn.
This is, of course, problematic when our goal is to be pixel-perfect. When the same image is drawn multiple times, we get progressive image degradation.
In `CanvasEntityObjectRenderer.cloneObjectGroup()`, where we use Konva's `Node.cache()` method to create a canvas from the entity's objects. Here, we were not setting `imageSmoothingEnabled` to false. This method is used very often by the compositor and we end up feeding back antialiased versions of the image data back into the canvas or generation backend.
Disabling smoothing here appears to fix the issue. I've also disabled image smoothing everywhere else we interact with a canvas rendering context.
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.
Big cleanup. Makes these classes easier to implement, lots of comments and docstrings to clarify how it all works.
- Add default implementations for `destroy`, `repr` and `getLoggingContext`
- Tidy individual module configs
- Update `CanvasManager.buildLogger` to accept a canvas module as the arg
- Add `CanvasManager.buildPath`
