102 lines
3.2 KiB
TypeScript
102 lines
3.2 KiB
TypeScript
import Command from './command'
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import history from '../history'
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import { AlignType, Data } from 'types'
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import { getCommonBounds, getPage, getSelectedShapes } from 'utils/utils'
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import { getShapeUtils } from 'lib/shape-utils'
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export default function alignCommand(data: Data, type: AlignType) {
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const { currentPageId } = data
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const selectedShapes = getSelectedShapes(data)
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const entries = selectedShapes.map(
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(shape) => [shape.id, getShapeUtils(shape).getBounds(shape)] as const
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)
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const boundsForShapes = Object.fromEntries(entries)
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const commonBounds = getCommonBounds(...entries.map((entry) => entry[1]))
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const midX = commonBounds.minX + commonBounds.width / 2
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const midY = commonBounds.minY + commonBounds.height / 2
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history.execute(
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data,
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new Command({
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name: 'aligned',
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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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switch (type) {
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case AlignType.Top: {
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for (let id in boundsForShapes) {
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const shape = shapes[id]
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getShapeUtils(shape).setProperty(shape, 'point', [
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shape.point[0],
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commonBounds.minY,
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])
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}
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break
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}
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case AlignType.CenterVertical: {
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for (let id in boundsForShapes) {
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const shape = shapes[id]
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getShapeUtils(shape).setProperty(shape, 'point', [
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shape.point[0],
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midY - boundsForShapes[id].height / 2,
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])
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}
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break
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}
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case AlignType.Bottom: {
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for (let id in boundsForShapes) {
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const shape = shapes[id]
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getShapeUtils(shape).setProperty(shape, 'point', [
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shape.point[0],
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commonBounds.maxY - boundsForShapes[id].height,
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])
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}
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break
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}
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case AlignType.Left: {
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for (let id in boundsForShapes) {
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const shape = shapes[id]
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getShapeUtils(shape).setProperty(shape, 'point', [
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commonBounds.minX,
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shape.point[1],
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])
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}
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break
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}
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case AlignType.CenterHorizontal: {
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for (let id in boundsForShapes) {
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const shape = shapes[id]
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getShapeUtils(shape).setProperty(shape, 'point', [
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midX - boundsForShapes[id].width / 2,
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shape.point[1],
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])
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}
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break
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}
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case AlignType.Right: {
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for (let id in boundsForShapes) {
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const shape = shapes[id]
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getShapeUtils(shape).setProperty(shape, 'point', [
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commonBounds.maxX - boundsForShapes[id].width,
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shape.point[1],
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])
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}
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break
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}
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}
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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 boundsForShapes) {
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const shape = shapes[id]
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const initialBounds = boundsForShapes[id]
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getShapeUtils(shape).setProperty(shape, 'point', [
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initialBounds.minX,
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initialBounds.minY,
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])
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}
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},
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})
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)
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}
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