tldraw/state/shape-utils/dot.tsx
2021-06-21 22:35:28 +01:00

86 lines
1.8 KiB
TypeScript

import { uniqueId } from 'utils/utils'
import { DotShape, ShapeType } from 'types'
import { boundsContained } from 'utils/bounds'
import { intersectCircleBounds } from 'utils/intersections'
import { translateBounds } from 'utils/utils'
import { defaultStyle } from 'state/shape-styles'
import { registerShapeUtils } from './register'
const dot = registerShapeUtils<DotShape>({
boundsCache: new WeakMap([]),
create(props) {
return {
id: uniqueId(),
seed: Math.random(),
type: ShapeType.Dot,
isGenerated: false,
name: 'Dot',
parentId: 'page1',
childIndex: 0,
point: [0, 0],
rotation: 0,
isAspectRatioLocked: false,
isLocked: false,
isHidden: false,
...props,
style: {
...defaultStyle,
...props.style,
isFilled: false,
},
}
},
render({ id }) {
return <use id={id} href="#dot" fill="black" />
},
getBounds(shape) {
if (!this.boundsCache.has(shape)) {
const bounds = {
minX: 0,
maxX: 1,
minY: 0,
maxY: 1,
width: 1,
height: 1,
}
this.boundsCache.set(shape, bounds)
}
return translateBounds(this.boundsCache.get(shape), shape.point)
},
getRotatedBounds(shape) {
return this.getBounds(shape)
},
getCenter(shape) {
return shape.point
},
hitTest() {
return true
},
hitTestBounds(this, shape, brushBounds) {
const shapeBounds = this.getBounds(shape)
return (
boundsContained(shapeBounds, brushBounds) ||
intersectCircleBounds(shape.point, 4, brushBounds).length > 0
)
},
transform(shape, bounds) {
shape.point = [bounds.minX, bounds.minY]
return this
},
canTransform: false,
canChangeAspectRatio: false,
})
export default dot