tldraw/apps/examples
Steve Ruiz fabba66c0f
Camera options (#3282)
This PR implements a camera options API.

- [x] Initial PR
- [x] Updated unit tests
- [x] Feedback / review
- [x] New unit tests
- [x] Update use-case examples
- [x] Ship?

## Public API

A user can provide camera options to the `Tldraw` component via the
`cameraOptions` prop. The prop is also available on the `TldrawEditor`
component and the constructor parameters of the `Editor` class.

```tsx
export default function CameraOptionsExample() {
	return (
		<div className="tldraw__editor">
			<Tldraw cameraOptions={CAMERA_OPTIONS} />
		</div>
	)
}
```

At runtime, a user can:
-  get the current camera options with `Editor.getCameraOptions`
-  update the camera options with `Editor.setCameraOptions`

Setting the camera options automatically applies them to the current
camera.

```ts
editor.setCameraOptions({...editor.getCameraOptions(), isLocked: true })
```

A user can get the "camera fit zoom" via `editor.getCameraFitZoom()`.

# Interface

The camera options themselves can look a few different ways depending on
the `type` provided.


```tsx
export type TLCameraOptions = {
	/** Whether the camera is locked. */
	isLocked: boolean
	/** The speed of a scroll wheel / trackpad pan. Default is 1. */
	panSpeed: number
	/** The speed of a scroll wheel / trackpad zoom. Default is 1. */
	zoomSpeed: number
	/** The steps that a user can zoom between with zoom in / zoom out. The first and last value will determine the min and max zoom. */
	zoomSteps: number[]
	/** Controls whether the wheel pans or zooms.
	 *
	 * - `zoom`: The wheel will zoom in and out.
	 * - `pan`: The wheel will pan the camera.
	 * - `none`: The wheel will do nothing.
	 */
	wheelBehavior: 'zoom' | 'pan' | 'none'
	/** The camera constraints. */
	constraints?: {
		/** The bounds (in page space) of the constrained space */
		bounds: BoxModel
		/** The padding inside of the viewport (in screen space) */
		padding: VecLike
		/** The origin for placement. Used to position the bounds within the viewport when an axis is fixed or contained and zoom is below the axis fit. */
		origin: VecLike
		/** The camera's initial zoom, used also when the camera is reset.
		 *
		 * - `default`: Sets the initial zoom to 100%.
		 * - `fit-x`: The x axis will completely fill the viewport bounds.
		 * - `fit-y`: The y axis will completely fill the viewport bounds.
		 * - `fit-min`: The smaller axis will completely fill the viewport bounds.
		 * - `fit-max`: The larger axis will completely fill the viewport bounds.
		 * - `fit-x-100`: The x axis will completely fill the viewport bounds, or 100% zoom, whichever is smaller.
		 * - `fit-y-100`: The y axis will completely fill the viewport bounds, or 100% zoom, whichever is smaller.
		 * - `fit-min-100`: The smaller axis will completely fill the viewport bounds, or 100% zoom, whichever is smaller.
		 * - `fit-max-100`: The larger axis will completely fill the viewport bounds, or 100% zoom, whichever is smaller.
		 */
		initialZoom:
			| 'fit-min'
			| 'fit-max'
			| 'fit-x'
			| 'fit-y'
			| 'fit-min-100'
			| 'fit-max-100'
			| 'fit-x-100'
			| 'fit-y-100'
			| 'default'
		/** The camera's base for its zoom steps.
		 *
		 * - `default`: Sets the initial zoom to 100%.
		 * - `fit-x`: The x axis will completely fill the viewport bounds.
		 * - `fit-y`: The y axis will completely fill the viewport bounds.
		 * - `fit-min`: The smaller axis will completely fill the viewport bounds.
		 * - `fit-max`: The larger axis will completely fill the viewport bounds.
		 * - `fit-x-100`: The x axis will completely fill the viewport bounds, or 100% zoom, whichever is smaller.
		 * - `fit-y-100`: The y axis will completely fill the viewport bounds, or 100% zoom, whichever is smaller.
		 * - `fit-min-100`: The smaller axis will completely fill the viewport bounds, or 100% zoom, whichever is smaller.
		 * - `fit-max-100`: The larger axis will completely fill the viewport bounds, or 100% zoom, whichever is smaller.
		 */
		baseZoom:
			| 'fit-min'
			| 'fit-max'
			| 'fit-x'
			| 'fit-y'
			| 'fit-min-100'
			| 'fit-max-100'
			| 'fit-x-100'
			| 'fit-y-100'
			| 'default'
		/** The behavior for the constraints for both axes or each axis individually.
		 *
		 * - `free`: The bounds are ignored when moving the camera.
		 * - 'fixed': The bounds will be positioned within the viewport based on the origin
		 * - `contain`: The 'fixed' behavior will be used when the zoom is below the zoom level at which the bounds would fill the viewport; and when above this zoom, the bounds will use the 'inside' behavior.
		 * - `inside`: The bounds will stay completely within the viewport.
		 * - `outside`: The bounds will stay touching the viewport.
		 */
		behavior:
			| 'free'
			| 'fixed'
			| 'inside'
			| 'outside'
			| 'contain'
			| {
					x: 'free' | 'fixed' | 'inside' | 'outside' | 'contain'
					y: 'free' | 'fixed' | 'inside' | 'outside' | 'contain'
			  }
	}
}
```

### Change Type

- [x] `sdk` — Changes the tldraw SDK
- [x] `feature` — New feature

### Test Plan

These features combine in different ways, so we'll want to write some
more tests to find surprises.

1. Add a step-by-step description of how to test your PR here.
2.

- [ ] Unit Tests

### Release Notes

- SDK: Adds camera options.

---------

Co-authored-by: Mitja Bezenšek <mitja.bezensek@gmail.com>
2024-05-04 17:39:04 +00:00
..
e2e textfields: fix RTL layout for SVG exports (#3680) 2024-05-03 13:40:59 +00:00
public 3d example (#3647) 2024-04-30 09:24:07 +00:00
src Camera options (#3282) 2024-05-04 17:39:04 +00:00
.gitignore feat: add new prop to force mobile mode layout (#1734) 2023-11-11 14:11:59 +00:00
LICENSE.md Change licenses to tldraw (#2167) 2023-12-19 10:41:01 +00:00
package.json Revert perf changes (#3217) 2024-03-21 10:05:44 +00:00
README.md Fix trademark links (#2380) 2023-12-26 09:22:04 +00:00
tsconfig.json Check tsconfig "references" arrays (#2891) 2024-02-21 13:07:53 +00:00
vercel.json Restore vercel.jsons (#2650) 2024-01-25 23:24:22 +00:00
vite.config.ts PDF editor example (#3159) 2024-03-19 11:55:21 +00:00

@tldraw/example

Community

Have questions, comments or feedback? Join our discord or start a discussion.

Distributions

You can find tldraw on npm here.

Contribution

Please see our contributing guide. Found a bug? Please submit an issue.

License

The tldraw source code and its distributions are provided under the tldraw license. This license does not permit commercial use.

If you wish to use this project in commercial product, you need to purchase a commercial license. Please contact us at hello@tldraw.com for more inforion about obtaining a commercial license.

Trademarks

Copyright (c) 2023-present tldraw Inc. The tldraw name and logo are trademarks of tldraw. Please see our trademark guidelines for info on acceptable usage.

Contact

Find us on Twitter at @tldraw or email hello@tldraw.com. You can also join our discord for quick help and support.