This PR makes a small improvement to the way we measure distances.
(Often we measure distances multiple times per frame per shape on the
screen). In many cases, we compare a minimum distance. This makes those
checks faster by avoiding a square root.
### Change Type
- [x] `sdk` — Changes the tldraw SDK
- [x] `improvement` — Improving existing features
### Release Notes
- Improve performance of minimum distance checks.
This adds the ability to drag the label on an arrow to a different
location within the line segment/arc.
https://github.com/tldraw/tldraw/assets/469604/dbd2ee35-bebc-48d6-b8ee-fcf12ce91fa5
- A lot of the complexity lay in ensuring a fixed distance from the ends
of the arrowheads.
- I added a new type of handle `text-adjust` that makes the text box the
very handle itself.
- I added a `ARROW_HANDLES` enum - we should use more enums!
- The bulk of the changes are in ArrowShapeUtil — check that out in
particular obviously :)
Along the way, I tried to improve a couple spots as I touched them:
- added some more documentation to Vec.ts because some of the functions
in there were obscure/new to me. (at least the naming, hah)
- added `getPointOnCircle` which was being done in a couple places
independently and refactored those places.
### Questions
- the `getPointOnCircle` API changed. Is this considered breaking and/or
should I leave the signature the same? Wasn't sure if it was a big deal
or not.
- I made `labelPosition` in the schema always but I guess it could have
been optional? Lemme know if there's a preference.
- Any feedback on tests? Happy to expand those if necessary.
### Change Type
- [ ] `patch` — Bug fix
- [x] `minor` — New feature
- [ ] `major` — Breaking change
- [ ] `dependencies` — Changes to package dependencies[^1]
- [ ] `documentation` — Changes to the documentation only[^2]
- [ ] `tests` — Changes to any test code only[^2]
- [ ] `internal` — Any other changes that don't affect the published
package[^2]
- [ ] I don't know
[^1]: publishes a `patch` release, for devDependencies use `internal`
[^2]: will not publish a new version
### Test Plan
1. For arrow in [straightArrow, curvedArrow] test the following:
a. Label in the middle
b. Label at both ends of the arrow
c. Test arrows in different directions
d. Rotating the endpoints and seeing that the label stays at the end of
the arrow at a fixed width.
e. Test different stroke widths.
f. Test with different arrowheads.
2. Also, test arcs that are more circle like than arc-like.
- [x] Unit Tests
- [ ] End to end tests
### Release Notes
- Adds ability to change label position on arrows.
---------
Co-authored-by: Steve Ruiz <steveruizok@gmail.com>
Co-authored-by: alex <alex@dytry.ch>
This PR:
1. Adds a `renderingOnly` option to the `Editor.getShapeAtPoint` method.
When true, the method will only hit test against rendering shapes
(shapes that are inside of the current `renderingBounds`) rather than
all shapes on the canvas.
2. Includes some low level improvements to the way that edges find their
nearest point.
3. Includes a fix to circle geometry that could produce NaN values
### Change Type
- [x] `minor` — New feature
### Test Plan
1. Check whether hovering shapes still works as you would expect.
- [x] Unit Tests
### Release Notes
- Improve perf for hovering shapes / shape hit tests
This PR is a significant rewrite of our selection / hit testing logic.
It
- replaces our current geometric helpers (`getBounds`, `getOutline`,
`hitTestPoint`, and `hitTestLineSegment`) with a new geometry API
- moves our hit testing entirely to JS using geometry
- improves selection logic, especially around editing shapes, groups and
frames
- fixes many minor selection bugs (e.g. shapes behind frames)
- removes hit-testing DOM elements from ShapeFill etc.
- adds many new tests around selection
- adds new tests around selection
- makes several superficial changes to surface editor APIs
This PR is hard to evaluate. The `selection-omnibus` test suite is
intended to describe all of the selection behavior, however all existing
tests are also either here preserved and passing or (in a few cases
around editing shapes) are modified to reflect the new behavior.
## Geometry
All `ShapeUtils` implement `getGeometry`, which returns a single
geometry primitive (`Geometry2d`). For example:
```ts
class BoxyShapeUtil {
getGeometry(shape: BoxyShape) {
return new Rectangle2d({
width: shape.props.width,
height: shape.props.height,
isFilled: true,
margin: shape.props.strokeWidth
})
}
}
```
This geometric primitive is used for all bounds calculation, hit
testing, intersection with arrows, etc.
There are several geometric primitives that extend `Geometry2d`:
- `Arc2d`
- `Circle2d`
- `CubicBezier2d`
- `CubicSpline2d`
- `Edge2d`
- `Ellipse2d`
- `Group2d`
- `Polygon2d`
- `Rectangle2d`
- `Stadium2d`
For shapes that have more complicated geometric representations, such as
an arrow with a label, the `Group2d` can accept other primitives as its
children.
## Hit testing
Previously, we did all hit testing via events set on shapes and other
elements. In this PR, I've replaced those hit tests with our own
calculation for hit tests in JavaScript. This removed the need for many
DOM elements, such as hit test area borders and fills which only existed
to trigger pointer events.
## Selection
We now support selecting "hollow" shapes by clicking inside of them.
This involves a lot of new logic but it should work intuitively. See
`Editor.getShapeAtPoint` for the (thoroughly commented) implementation.
every sunset is actually the sun hiding in fear and respect of tldraw's
quality of interactions
This PR also fixes several bugs with scribble selection, in particular
around the shift key modifier.
...as well as issues with labels and editing.
There are **over 100 new tests** for selection covering groups, frames,
brushing, scribbling, hovering, and editing. I'll add a few more before
I feel comfortable merging this PR.
## Arrow binding
Using the same "hollow shape" logic as selection, arrow binding is
significantly improved.
a thousand wise men could not improve on this
## Moving focus between editing shapes
Previously, this was handled in the `editing_shapes` state. This is
moved to `useEditableText`, and should generally be considered an
advanced implementation detail on a shape-by-shape basis. This addresses
a bug that I'd never noticed before, but which can be reproduced by
selecting an shape—but not focusing its input—while editing a different
shape. Previously, the new shape became the editing shape but its input
did not focus.
In this PR, you can select a shape by clicking on its edge or body, or
select its input to transfer editing / focus.
tldraw, glorious tldraw
### Change Type
- [x] `major` — Breaking change
### Test Plan
1. Erase shapes
2. Select shapes
3. Calculate their bounding boxes
- [ ] Unit Tests // todo
- [ ] End to end tests // todo
### Release Notes
- [editor] Remove `ShapeUtil.getBounds`, `ShapeUtil.getOutline`,
`ShapeUtil.hitTestPoint`, `ShapeUtil.hitTestLineSegment`
- [editor] Add `ShapeUtil.getGeometry`
- [editor] Add `Editor.getShapeGeometry`
Steve Ruiz