kopia lustrzana https://github.com/Tldraw/Tldraw
90 wiersze
4.2 KiB
TypeScript
90 wiersze
4.2 KiB
TypeScript
import { useQuickReactor } from '@tldraw/state'
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import { TLCursorType } from '@tldraw/tlschema'
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import { PI, radiansToDegrees } from '../primitives/utils'
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import { useContainer } from './useContainer'
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import { useEditor } from './useEditor'
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import { useIsDarkMode } from './useIsDarkMode'
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const CORNER_SVG = `<path d='m19.7432 17.0869-4.072 4.068 2.829 2.828-8.473-.013-.013-8.47 2.841 2.842 4.075-4.068 1.414-1.415-2.844-2.842h8.486v8.484l-2.83-2.827z' fill='%23fff'/><path d='m18.6826 16.7334-4.427 4.424 1.828 1.828-5.056-.016-.014-5.054 1.842 1.841 4.428-4.422 2.474-2.475-1.844-1.843h5.073v5.071l-1.83-1.828z' fill='%23000'/>`
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const EDGE_SVG = `<path d='m9 17.9907v.005l5.997 5.996.001-3.999h1.999 2.02v4l5.98-6.001-5.98-5.999.001 4.019-2.021.002h-2l.001-4.022zm1.411.003 3.587-3.588-.001 2.587h3.5 2.521v-2.585l3.565 3.586-3.564 3.585-.001-2.585h-2.521l-3.499-.001-.001 2.586z' fill='%23fff'/><path d='m17.4971 18.9932h2.521v2.586l3.565-3.586-3.565-3.585v2.605h-2.521-3.5v-2.607l-3.586 3.587 3.586 3.586v-2.587z' fill='%23000'/>`
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const ROTATE_CORNER_SVG = `<path d="M22.4789 9.45728L25.9935 12.9942L22.4789 16.5283V14.1032C18.126 14.1502 14.6071 17.6737 14.5675 22.0283H17.05L13.513 25.543L9.97889 22.0283H12.5674C12.6071 16.5691 17.0214 12.1503 22.4789 12.1031L22.4789 9.45728Z" fill="black"/><path fill-rule="evenodd" clip-rule="evenodd" d="M21.4789 7.03223L27.4035 12.9945L21.4789 18.9521V15.1868C18.4798 15.6549 16.1113 18.0273 15.649 21.0284H19.475L13.5128 26.953L7.55519 21.0284H11.6189C12.1243 15.8155 16.2679 11.6677 21.4789 11.1559L21.4789 7.03223ZM22.4789 12.1031C17.0214 12.1503 12.6071 16.5691 12.5674 22.0284H9.97889L13.513 25.543L17.05 22.0284H14.5675C14.5705 21.6896 14.5947 21.3558 14.6386 21.0284C15.1157 17.4741 17.9266 14.6592 21.4789 14.1761C21.8063 14.1316 22.1401 14.1069 22.4789 14.1032V16.5284L25.9935 12.9942L22.4789 9.45729L22.4789 12.1031Z" fill="white"/>`
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function getCursorCss(
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svg: string,
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r: number,
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tr: number,
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f: boolean,
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color: string,
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hotspotX = 16,
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hotspotY = 16
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) {
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const a = (-tr - r) * (PI / 180)
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const s = Math.sin(a)
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const c = Math.cos(a)
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const dx = 1 * c - 1 * s
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const dy = 1 * s + 1 * c
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return (
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`url("data:image/svg+xml,<svg height='32' width='32' viewBox='0 0 32 32' xmlns='http://www.w3.org/2000/svg' style='color: ${color};'><defs><filter id='shadow' y='-40%' x='-40%' width='180px' height='180%' color-interpolation-filters='sRGB'><feDropShadow dx='${dx}' dy='${dy}' stdDeviation='1.2' flood-opacity='.5'/></filter></defs><g fill='none' transform='rotate(${
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r + tr
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} 16 16)${f ? ` scale(-1,-1) translate(0, -32)` : ''}' filter='url(%23shadow)'>` +
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svg.replaceAll(`"`, `'`) +
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`</g></svg>") ${hotspotX} ${hotspotY}, pointer`
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)
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}
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const STATIC_CURSORS = [
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'default',
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'pointer',
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'cross',
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'move',
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'grab',
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'grabbing',
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'text',
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'zoom-in',
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'zoom-out',
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]
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type CursorFunction = (rotation: number, flip: boolean, color: string) => string
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const CURSORS: Record<TLCursorType, CursorFunction> = {
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none: () => 'none',
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'ew-resize': (r, f, c) => getCursorCss(EDGE_SVG, r, 0, f, c),
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'ns-resize': (r, f, c) => getCursorCss(EDGE_SVG, r, 90, f, c),
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'nesw-resize': (r, f, c) => getCursorCss(CORNER_SVG, r, 0, f, c),
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'nwse-resize': (r, f, c) => getCursorCss(CORNER_SVG, r, 90, f, c),
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'nwse-rotate': (r, f, c) => getCursorCss(ROTATE_CORNER_SVG, r, 0, f, c),
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'nesw-rotate': (r, f, c) => getCursorCss(ROTATE_CORNER_SVG, r, 90, f, c),
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'senw-rotate': (r, f, c) => getCursorCss(ROTATE_CORNER_SVG, r, 180, f, c),
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'swne-rotate': (r, f, c) => getCursorCss(ROTATE_CORNER_SVG, r, 270, f, c),
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}
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/** @public */
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export function getCursor(cursor: TLCursorType, rotation = 0, color = 'black') {
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return CURSORS[cursor](radiansToDegrees(rotation), false, color)
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}
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export function useCursor() {
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const editor = useEditor()
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const container = useContainer()
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const isDarkMode = useIsDarkMode()
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useQuickReactor(
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'useCursor',
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() => {
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const { type, rotation } = editor.getInstanceState().cursor
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if (STATIC_CURSORS.includes(type)) {
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container.style.setProperty('--tl-cursor', `var(--tl-cursor-${type})`)
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return
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}
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container.style.setProperty(
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'--tl-cursor',
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getCursor(type, rotation, isDarkMode ? 'white' : 'black')
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)
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},
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[editor, container, isDarkMode]
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)
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}
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