92 lines
2.3 KiB
TypeScript
92 lines
2.3 KiB
TypeScript
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import Command from './command'
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import history from '../history'
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import { Data } from 'types'
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import {
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getBoundsCenter,
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getCommonBounds,
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getPage,
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getSelectedShapes,
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} from 'utils/utils'
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import * as vec from 'utils/vec'
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import { getShapeUtils } from 'lib/shape-utils'
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const PI2 = Math.PI * 2
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export default function rotateCcwCommand(data: Data) {
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const { currentPageId, boundsRotation } = data
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const page = getPage(data)
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const initialShapes = Object.fromEntries(
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getSelectedShapes(data).map((shape) => {
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const bounds = getShapeUtils(shape).getBounds(shape)
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return [
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shape.id,
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{
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rotation: shape.rotation,
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point: [...shape.point],
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center: getBoundsCenter(bounds),
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bounds,
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},
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]
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})
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)
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const commonBoundsCenter = getBoundsCenter(
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getCommonBounds(...Object.values(initialShapes).map((b) => b.bounds))
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)
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const nextShapes = Object.fromEntries(
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Object.entries(initialShapes).map(([id, { point, center }]) => {
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const shape = { ...page.shapes[id] }
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const offset = vec.sub(center, point)
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const nextPoint = vec.sub(
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vec.rotWith(center, commonBoundsCenter, -(PI2 / 4)),
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offset
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)
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const rot = (PI2 + (shape.rotation - PI2 / 4)) % PI2
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getShapeUtils(shape).rotateTo(shape, rot).translateTo(shape, nextPoint)
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return [id, shape]
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})
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)
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const nextboundsRotation = (PI2 + (data.boundsRotation - PI2 / 4)) % PI2
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history.execute(
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data,
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new Command({
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name: 'translate_shapes',
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category: 'canvas',
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do(data) {
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const { shapes } = getPage(data, currentPageId)
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for (let id in nextShapes) {
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const shape = shapes[id]
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getShapeUtils(shape)
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.rotateTo(shape, nextShapes[id].rotation)
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.translateTo(shape, nextShapes[id].point)
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}
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data.boundsRotation = nextboundsRotation
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},
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undo(data) {
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const { shapes } = getPage(data, currentPageId)
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for (let id in initialShapes) {
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const { point, rotation } = initialShapes[id]
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const shape = shapes[id]
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const utils = getShapeUtils(shape)
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utils.rotateTo(shape, rotation).translateTo(shape, point)
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}
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data.boundsRotation = boundsRotation
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},
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})
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)
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}
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