renames shapes -> shape utils

lib/shape-utils/rectangle.tsx

@@ -0,0 +1,136 @@
+import { v4 as uuid } from "uuid"
+import * as vec from "utils/vec"
+import {
+  RectangleShape,
+  ShapeType,
+  TransformCorner,
+  TransformEdge,
+} from "types"
+import { registerShapeUtils } from "./index"
+import { boundsCollidePolygon, boundsContainPolygon } from "utils/bounds"
+import {
+  getBoundsFromPoints,
+  getRotatedCorners,
+  rotateBounds,
+  translateBounds,
+} from "utils/utils"
+
+const rectangle = registerShapeUtils<RectangleShape>({
+  boundsCache: new WeakMap([]),
+
+  create(props) {
+    return {
+      id: uuid(),
+      type: ShapeType.Rectangle,
+      isGenerated: false,
+      name: "Rectangle",
+      parentId: "page0",
+      childIndex: 0,
+      point: [0, 0],
+      size: [1, 1],
+      rotation: 0,
+      style: {
+        fill: "#c6cacb",
+        stroke: "#000",
+      },
+      ...props,
+    }
+  },
+
+  render({ id, size }) {
+    return <rect id={id} width={size[0]} height={size[1]} />
+  },
+
+  getBounds(shape) {
+    if (!this.boundsCache.has(shape)) {
+      const [width, height] = shape.size
+      const bounds = {
+        minX: 0,
+        maxX: width,
+        minY: 0,
+        maxY: height,
+        width,
+        height,
+      }
+
+      this.boundsCache.set(shape, bounds)
+    }
+
+    return translateBounds(this.boundsCache.get(shape), shape.point)
+  },
+
+  getRotatedBounds(shape) {
+    return getBoundsFromPoints(
+      getRotatedCorners(this.getBounds(shape), shape.rotation)
+    )
+  },
+
+  getCenter(shape) {
+    const bounds = this.getRotatedBounds(shape)
+    return [bounds.minX + bounds.width / 2, bounds.minY + bounds.height / 2]
+  },
+
+  hitTest(shape) {
+    return true
+  },
+
+  hitTestBounds(shape, brushBounds) {
+    const rotatedCorners = getRotatedCorners(
+      this.getBounds(shape),
+      shape.rotation
+    )
+
+    return (
+      boundsContainPolygon(brushBounds, rotatedCorners) ||
+      boundsCollidePolygon(brushBounds, rotatedCorners)
+    )
+  },
+
+  rotate(shape) {
+    return shape
+  },
+
+  translate(shape, delta) {
+    shape.point = vec.add(shape.point, delta)
+    return shape
+  },
+
+  scale(shape, scale) {
+    return shape
+  },
+
+  transform(shape, bounds, { initialShape, scaleX, scaleY }) {
+    if (shape.rotation === 0) {
+      shape.size = [bounds.width, bounds.height]
+      shape.point = [bounds.minX, bounds.minY]
+    } else {
+      // Center shape in resized bounds
+      shape.size = vec.mul(
+        initialShape.size,
+        Math.min(Math.abs(scaleX), Math.abs(scaleY))
+      )
+
+      shape.point = vec.sub(
+        vec.med([bounds.minX, bounds.minY], [bounds.maxX, bounds.maxY]),
+        vec.div(shape.size, 2)
+      )
+    }
+
+    // Set rotation for flipped shapes
+    shape.rotation = initialShape.rotation
+    if (scaleX < 0) shape.rotation *= -1
+    if (scaleY < 0) shape.rotation *= -1
+
+    return shape
+  },
+
+  transformSingle(shape, bounds) {
+    shape.size = [bounds.width, bounds.height]
+    shape.point = [bounds.minX, bounds.minY]
+    return shape
+  },
+
+  canTransform: true,
+})
+
+export default rectangle