tldraw/components/canvas/defs.tsx
2021-06-06 08:33:30 +01:00

34 lines
1 KiB
TypeScript

import { getShapeUtils } from 'lib/shape-utils'
import { memo } from 'react'
import { useSelector } from 'state'
import { deepCompareArrays, getCurrentCamera, getPage } from 'utils/utils'
import { DotCircle, Handle } from './misc'
export default function Defs() {
const zoom = useSelector((s) => getCurrentCamera(s.data).zoom)
const currentPageShapeIds = useSelector(({ data }) => {
return Object.values(getPage(data).shapes)
.sort((a, b) => a.childIndex - b.childIndex)
.map((shape) => shape.id)
}, deepCompareArrays)
return (
<defs>
{currentPageShapeIds.map((id) => (
<Def key={id} id={id} />
))}
<DotCircle id="dot" r={4} />
<Handle id="handle" r={4} />
<filter id="expand">
<feMorphology operator="dilate" radius={2 / zoom} />
</filter>
</defs>
)
}
const Def = memo(function Def({ id }: { id: string }) {
const shape = useSelector((s) => getPage(s.data).shapes[id])
if (!shape) return null
return getShapeUtils(shape).render(shape)
})