kopia lustrzana https://github.com/Tldraw/Tldraw
117 wiersze
2.6 KiB
TypeScript
117 wiersze
2.6 KiB
TypeScript
import { v4 as uuid } from "uuid"
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import * as vec from "utils/vec"
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import { RectangleShape, ShapeType } from "types"
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import { createShape } from "./index"
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import { boundsCollidePolygon, boundsContainPolygon } from "utils/bounds"
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import { getBoundsFromPoints, rotateBounds, translateBounds } from "utils/utils"
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const rectangle = createShape<RectangleShape>({
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boundsCache: new WeakMap([]),
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create(props) {
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return {
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id: uuid(),
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type: ShapeType.Rectangle,
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isGenerated: false,
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name: "Rectangle",
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parentId: "page0",
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childIndex: 0,
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point: [0, 0],
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size: [1, 1],
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rotation: 0,
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style: {
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fill: "rgba(142, 143, 142, 1.000)",
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stroke: "#000",
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},
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...props,
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}
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},
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render({ id, size }) {
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return <rect id={id} width={size[0]} height={size[1]} />
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},
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getBounds(shape) {
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if (!this.boundsCache.has(shape)) {
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const [width, height] = shape.size
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const bounds = {
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minX: 0,
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maxX: width,
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minY: 0,
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maxY: height,
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width,
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height,
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}
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this.boundsCache.set(shape, bounds)
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}
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return translateBounds(this.boundsCache.get(shape), shape.point)
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},
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getRotatedBounds(shape) {
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const b = this.getBounds(shape)
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const center = [b.minX + b.width / 2, b.minY + b.height / 2]
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// Rotate corners of the shape, then find the minimum among those points.
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const rotatedCorners = [
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[b.minX, b.minY],
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[b.maxX, b.minY],
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[b.maxX, b.maxY],
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[b.minX, b.maxY],
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].map((point) => vec.rotWith(point, center, shape.rotation))
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return getBoundsFromPoints(rotatedCorners)
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},
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getCenter(shape) {
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const bounds = this.getRotatedBounds(shape)
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return [bounds.minX + bounds.width / 2, bounds.minY + bounds.height / 2]
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},
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hitTest(shape) {
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return true
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},
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hitTestBounds(shape, brushBounds) {
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const b = this.getBounds(shape)
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const center = [b.minX + b.width / 2, b.minY + b.height / 2]
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const rotatedCorners = [
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[b.minX, b.minY],
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[b.maxX, b.minY],
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[b.maxX, b.maxY],
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[b.minX, b.maxY],
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].map((point) => vec.rotWith(point, center, shape.rotation))
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return (
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boundsContainPolygon(brushBounds, rotatedCorners) ||
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boundsCollidePolygon(brushBounds, rotatedCorners)
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)
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},
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rotate(shape) {
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return shape
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},
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translate(shape, delta) {
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shape.point = vec.add(shape.point, delta)
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return shape
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},
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scale(shape, scale) {
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return shape
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},
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transform(shape, bounds) {
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shape.point = [bounds.minX, bounds.minY]
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shape.size = [bounds.width, bounds.height]
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return shape
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},
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canTransform: true,
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})
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export default rectangle
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