JSON

导入导出 JSON 对象 / 字符串。

注意

App 元素 暂不支持直接导入导出。

可以导出 app.tree 为 json， 再通过 app.tree.set( {children: json.children }) 导入。

导出

toJSON ( options?: IJSONOptions ): IUIInputData

导出 JSON 对象。

interface IJSONOptions {
  matrix?: boolean
}

import { Leafer, Rect } from 'leafer-ui'

const leafer = new Leafer({ view: window })

const rect = new Rect({
    x: 100,
    y: 100,
    width: 200,
    height: 200,
    fill: '#32cd79',
    draggable: true
})

leafer.add(rect)

const json = leafer.toJSON() 

console.log(json) // {"tag":"Leafer","width":1273,"height":877,"pixelRatio":2,"hittable":true,"children":[{"tag":"Rect","x":100,"y":100,"width":200,"height":200,"fill":"#32cd79","draggable":true}]}

toString ( options?: IJSONOptions ): string

导出 json 字符串。

interface IJSONOptions {
  matrix?: boolean
}

导入

创建方式

import { Leafer } from 'leafer-ui'

const leafer = new Leafer({ view: window })

const json = { "tag": 'Group', "x": 20, "y": 20, "children": [{ "tag": "Rect", "x": 100, "y": 100, "width": 200, "height": 200, "fill": "#32cd79", "draggable": true }] }

leafer.add(json)

import { Leafer } from 'leafer-ui'

const json = { "tag": "Leafer", "width": 1273, "height": 877, "pixelRatio": 2, "hittable": true, "children": [{ "tag": "Rect", "x": 100, "y": 100, "width": 200, "height": 200, "fill": "#32cd79", "draggable": true }] }

new Leafer({ view: window }, json)

set 方式

import { Group, Leafer } from 'leafer-ui'

const leafer = new Leafer({ view: window })

const group = new Group()

leafer.add(group)

const json = { "x": 20, "y": 20, "children": [{ "tag": "Rect", "x": 100, "y": 100, "width": 200, "height": 200, "fill": "#32cd79", "draggable": true }] }

group.set(json)

归属

UI