@tldraw/editor/dist-esm/lib/utils/rotation.mjs.map

tldraw infinite canvas SDK (editor).

{
  "version": 3,
  "sources": ["../../../src/lib/utils/rotation.ts"],
  "sourcesContent": ["import { isShapeId, TLShape, TLShapeId, TLShapePartial } from '@tldraw/tlschema'\nimport { compact } from '@tldraw/utils'\nimport { Editor } from '../editor/Editor'\nimport { Mat } from '../primitives/Mat'\nimport { canonicalizeRotation } from '../primitives/utils'\nimport { Vec, VecLike } from '../primitives/Vec'\n\n/** @internal */\nexport function getRotationSnapshot({\n\teditor,\n\tids,\n}: {\n\teditor: Editor\n\tids: TLShapeId[]\n}): TLRotationSnapshot | null {\n\tconst shapes = compact(ids.map((id) => editor.getShape(id)))\n\tconst rotation = editor.getShapesSharedRotation(ids)\n\tconst rotatedPageBounds = editor.getShapesRotatedPageBounds(ids)\n\n\t// todo: this assumes we're rotating the selected shapes\n\t// if we try to rotate shapes that aren't selected, this\n\t// will produce the wrong results\n\n\t// Return null if there are no selected shapes\n\tif (!rotatedPageBounds) {\n\t\treturn null\n\t}\n\n\tconst initialPageCenter = rotatedPageBounds.center\n\t\t.clone()\n\t\t.rotWith(rotatedPageBounds.point, rotation)\n\n\treturn {\n\t\tinitialPageCenter,\n\t\tinitialCursorAngle: initialPageCenter.angle(editor.inputs.originPagePoint),\n\t\tinitialShapesRotation: rotation,\n\t\tshapeSnapshots: shapes.map((shape) => ({\n\t\t\tshape,\n\t\t\tinitialPagePoint: editor.getShapePageTransform(shape.id)!.point(),\n\t\t})),\n\t}\n}\n\n/**\n * @internal\n **/\nexport interface TLRotationSnapshot {\n\tinitialPageCenter: Vec\n\tinitialCursorAngle: number\n\tinitialShapesRotation: number\n\tshapeSnapshots: {\n\t\tshape: TLShape\n\t\tinitialPagePoint: Vec\n\t}[]\n}\n\n/** @internal */\nexport function applyRotationToSnapshotShapes({\n\tdelta,\n\teditor,\n\tsnapshot,\n\tstage,\n\tcenterOverride,\n}: {\n\tdelta: number\n\tsnapshot: TLRotationSnapshot\n\teditor: Editor\n\tstage: 'start' | 'update' | 'end' | 'one-off'\n\tcenterOverride?: VecLike\n}) {\n\tconst { initialPageCenter, shapeSnapshots } = snapshot\n\n\teditor.updateShapes(\n\t\tshapeSnapshots.map(({ shape, initialPagePoint }) => {\n\t\t\t// We need to both rotate each shape individually and rotate the shapes\n\t\t\t// around the pivot point (the average center of all rotating shapes.)\n\n\t\t\tconst parentTransform = isShapeId(shape.parentId)\n\t\t\t\t? editor.getShapePageTransform(shape.parentId)!\n\t\t\t\t: Mat.Identity()\n\n\t\t\tconst newPagePoint = Vec.RotWith(initialPagePoint, centerOverride ?? initialPageCenter, delta)\n\n\t\t\tconst newLocalPoint = Mat.applyToPoint(\n\t\t\t\t// use the current parent transform in case it has moved/resized since the start\n\t\t\t\t// (e.g. if rotating a shape at the edge of a group)\n\t\t\t\tMat.Inverse(parentTransform),\n\t\t\t\tnewPagePoint\n\t\t\t)\n\t\t\tconst newRotation = canonicalizeRotation(shape.rotation + delta)\n\n\t\t\treturn {\n\t\t\t\tid: shape.id,\n\t\t\t\ttype: shape.type,\n\t\t\t\tx: newLocalPoint.x,\n\t\t\t\ty: newLocalPoint.y,\n\t\t\t\trotation: newRotation,\n\t\t\t}\n\t\t})\n\t)\n\n\t// Handle change\n\n\tconst changes: TLShapePartial[] = []\n\n\tshapeSnapshots.forEach(({ shape }) => {\n\t\tconst current = editor.getShape(shape.id)\n\t\tif (!current) return\n\t\tconst util = editor.getShapeUtil(shape)\n\n\t\tif (stage === 'start' || stage === 'one-off') {\n\t\t\tconst changeStart = util.onRotateStart?.(shape)\n\t\t\tif (changeStart) changes.push(changeStart)\n\t\t}\n\n\t\tconst changeUpdate = util.onRotate?.(shape, current)\n\t\tif (changeUpdate) changes.push(changeUpdate)\n\n\t\tif (stage === 'end' || stage === 'one-off') {\n\t\t\tconst changeEnd = util.onRotateEnd?.(shape, current)\n\t\t\tif (changeEnd) changes.push(changeEnd)\n\t\t}\n\t})\n\n\tif (changes.length > 0) {\n\t\teditor.updateShapes(changes)\n\t}\n}\n"],
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