本文主要是介绍vue2 + antvx6 实现流程图功能，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
导入关键包
npm install @antv/x6 --save
npm install @antv/x6-vue-shape
保存插件 (可选)
npm install --save @antv/x6-plugin-clipboard @antv/x6-plugin-history @antv/x6-plugin-keyboard @antv/x6-plugin-selection @antv/x6-plugin-snapline @antv/x6-plugin-stencil @antv/x6-plugin-transform insert-css
写好的组件直接导入即可
<template><div><el-container><el-aside><div id="stencil"><div><div class="dnd-circle dnd-start" @mousedown="startDrag('start',$event)"></div><span>开始</span></div><div><div class="dnd-rect" @mousedown="startDrag('rect',$event)"></div><span>节点1</span></div><div><div class="dnd-polygon" @mousedown="startDrag('polygon',$event)"></div><span>节点2</span></div><div><div class="dnd-circle" @mousedown="startDrag('end',$event)"></div><span>结束</span></div></div></el-aside><el-main><div ref="graphContainer"></div></el-main></el-container><!-- todo drawer 抽屉实现节点内容编辑 --><el-drawertitle="节点属性编辑":visible.sync="drawer":direction="direction":before-close="handleClose"><el-form :data="editNode" :inline="true"><el-form-item label="节点名称" prop="label"><el-input v-model="editNode.label"></el-input></el-form-item><el-form-item label="节点形状" prop="shape"><el-select v-model="editNode.shape"><el-option v-for="(item,index) in shapeList" :key="item.value" :label="item.label":value="item.value"></el-option></el-select></el-form-item><el-button type="primary" @click="saveNode">保存</el-button></el-form></el-drawer></div>
</template><script>
import {Graph} from '@antv/x6'
import '@antv/x6-vue-shape'
// 插件 键盘监听事件
import {Keyboard} from '@antv/x6-plugin-keyboard'
// 拖拽事件
import {Dnd} from '@antv/x6-plugin-dnd'import {Stencil} from '@antv/x6-plugin-stencil'
import {Transform} from '@antv/x6-plugin-transform'
import {Selection} from '@antv/x6-plugin-selection'
import {Snapline} from '@antv/x6-plugin-snapline'
import {Clipboard} from '@antv/x6-plugin-clipboard'
import {History} from '@antv/x6-plugin-history'
import {register} from '@antv/x6-vue-shape'
import insertCss from 'insert-css'export default {name: 'MindMap',data () {return {graphOut: {},drawer: false,direction: 'rtl',currentNode: {},editNode: {},dnd: {},// 节点形状shapeList: [{label: '矩形',value: 'rect'}, {label: '圆形',value: 'circle'}, {label: '椭圆',value: 'ellipse'}, {label: '多边形',value: 'polygon'}, {label: '折线',value: 'polyline'}, {label: '路径',value: 'path'}, {label: '图片',value: 'image'},],// 连接桩ports: {groups: {top: {position: 'top',attrs: {circle: {magnet: true,stroke: 'black',r: 4,},},},bottom: {position: 'bottom',attrs: {circle: {magnet: true,stroke: 'black',r: 4,},},},left: {position: 'left',attrs: {circle: {magnet: true,stroke: 'black',r: 4,},},},right: {position: 'right',attrs: {circle: {magnet: true,stroke: 'black',r: 4,},},},},items: [{id: 'port_1',group: 'bottom',}, {id: 'port_2',group: 'top',}, {id: 'port_3',group: 'left',}, {id: 'port_4',group: 'right',}]}}},mounted () {this.graphOut = this.initGraph()},methods: {initGraph () {const graph = new Graph({container: this.$refs.graphContainer,// autoResize: true, // 大小自适应height: 400,width: '100%',grid: true,magnetThreshold: 'onleave',panning: {enabled: true,modifiers: 'shift',magnetThreshold: 1,// 鼠标画布移动eventTypes: ['leftMouseDown']},// 开启自动吸附connecting: {// 距离节点或者连接桩 50 px 触发自动吸附snap: true,// 是否允许连接到画布空白位置的点allowBlank: false,// 是否允许创建循环连线allowLoop: false,// 拖动边时,是否高亮显示所有可用连接桩或节点highlight: true,},modes: {default: ['drag-node']},background: {color: '#F2F7FA',},mousewheel: {// 是否开启滚轮缩放交互enabled: true,// 滚动缩放因子 默认 1.2factor: 1.2,// 是否将鼠标位置作为中心缩放、默认为truezoomAtMousePosition: true,// 按下什么键 才会缩放modifiers: ['ctrl', 'meta'],// 判断什么情况下 滚轮事件被处理// guard: false,},connector: {name: 'rounded',args: {radius: 8}}})// 支持拖拽this.dnd = new Dnd({target: graph,scaled: false,})Graph.registerNode('custom-node-width-port',{inherit: 'rect',width: 100,height: 40,attrs: {body: {stroke: '#8f8f8f',strokeWidth: 1,fill: '#fff',rx: 6,ry: 6,},},// 上下左右 四条边都有连接桩ports: this.ports},true,)Graph.registerNode('custom-circle-start',{inherit: 'circle',ports: this.ports},true,)Graph.registerNode('custom-polygon',{inherit: 'polygon',points: '0,10 10,0 20,10 10,20',ports: this.ports},true,)Graph.registerNode('custom-rect',{inherit: 'rect',ports: this.ports},true,)graph.addNode({x: 100,y: 40,width: 180,height: 30,label: '中心主题',shape: 'custom-node-width-port', // 节点形状attrs: {body: {fill: '#f5f5f5',stroke: '#333',},type: 'root'},tools: [{name: 'boundary',args: {attrs: {fill: '#16B8AA',stroke: '#2F80EB',strokeWidth: 1,fillOpacity: 0.1,},},}]})// 添加 plugin 插件graph.use(new Keyboard()) // 键盘事件.use(new Selection({enabled: true,multiple: true,rubberband: true,movable: true,showEdgeSelectionBox: true,showNodeSelectionBox: true,pointerEvents: 'none'})) // 绑定框选.use(new Snapline({enabled: true,sharp: true,})) // 对齐线.use(new Clipboard()).use(new History({enabled: true})) // 绑定撤销// 鼠标事件this.mouseEvent(graph)// 键盘时间this.keyboardEvent(graph)// 添加子节点的逻辑...return graph},addChildNode (nodeId, type) {console.log(nodeId, type)},handleClose (done) {this.$confirm('确认关闭？').then(_ => {done()}).catch(_ => {})},saveNode () {this.$confirm('确认保存？').then(_ => {console.log(this.editNode)this.currentNode['label'] = this.editNode['label']// this.currentNode['shape'] = this.editNode['shape']}).catch(_ => {})// 关闭当前 抽屉 el-drawerthis.drawer = false},startDrag (type, e) {this.startDragToGraph(this.graphOut, type, e)},startDragToGraph (graph, type, e) {const startNode = this.graphOut.createNode({shape: 'custom-circle-start',width: 38,height: 38,attrs: {body: {strokeWidth: 1,stroke: '#000000',fill: '#ffffff',rx: 10,ry: 10,},},})const polygonNode = this.graphOut.createNode({shape: 'custom-polygon',width: 80,height: 60,attrs: {body: {strokeWidth: 1,stroke: '#000000',fill: '#ffffff',rx: 10,ry: 10,},label: {fontSize: 13,fontWeight: 'bold',},},})const rectNode = this.graphOut.createNode({shape: 'custom-rect',width: 80,height: 60,attrs: {body: {strokeWidth: 1,stroke: '#000000',fill: '#ffffff',rx: 10,ry: 10,},label: {fontSize: 13,fontWeight: 'bold',},},})const endNode = this.graphOut.createNode({shape: 'custom-circle-start',width: 38,height: 38,key: 'end',attrs: {body: {strokeWidth: 4,stroke: '#000000',fill: '#ffffff',rx: 10,ry: 10,},label: {text: '结束',fontSize: 13,fontWeight: 'bold',},},})let dragNodeif (type === 'start') {dragNode = startNode} else if (type === 'end') {dragNode = endNode} else if (type === 'rect') {dragNode = rectNode} else if (type === 'polygon') {dragNode = polygonNode}console.log('dnd', dragNode, e, type)this.dnd.start(dragNode, e)},// 删除事件 节点removeNode (node) {this.graphOut.removeNode(node)},// 鼠标事件mouseEvent (graph) {// 鼠标事件// 鼠标 Hover 时添加按钮graph.on('node:mouseenter', ({node}) => {node.addTools({name: 'button',args: {x: 0,y: 0,offset: {x: 18, y: 18},// onClick({ view }) { ... },},})})// 鼠标移开时删除按钮graph.on('node:mouseleave', ({node}) => {node.removeTools() // 删除所有的工具})graph.on('node:dblclick', ({node}) => {// 添加连接桩node.addPort({group: 'top',attrs: {circle: {magnet: true,stroke: '#8f8f8f',r: 5,},},})// 编辑nodethis.currentNode = nodethis.drawer = true})graph.on('edge:mouseenter', ({cell}) => {cell.addTools([{name: 'vertices'},{name: 'button-remove',args: {distance: 20},},])})graph.on('node:click', ({node}) => {this.currentNode = node})},// 键盘事件keyboardEvent (graph) {// 键盘事件graph.bindKey('tab', (e) => {e.preventDefault()const selectedNodes = graph.getCells().filter((item) => item.isNode())console.log(selectedNodes)if (selectedNodes.length) {const node = selectedNodes[0]const type = node.attrs['type']this.addChildNode(node.id, type)}})graph.bindKey('delete', (e) => {this.removeNode(this.currentNode)})graph.bindKey('backspace', (e) => {this.removeNode(this.currentNode)})},},watch: {// currentNode: {// handler (nwVal, old) {// },// immediate: true,// deep: true// }}
}
</script><style>
/* 样式调整 */
#stencil {width: 100px;height: 100%;position: relative;display: flex;flex-direction: column;align-items: center;border-right: 1px solid #dfe3e8;text-align: center;font-size: 12px;
}.dnd-rect {width: 50px;height: 30px;line-height: 40px;text-align: center;border: 2px solid #000000;border-radius: 6px;cursor: move;font-size: 12px;margin-top: 30px;
}.dnd-polygon {width: 35px;height: 35px;border: 2px solid #000000;transform: rotate(45deg);cursor: move;font-size: 12px;margin-top: 30px;margin-bottom: 10px;
}.dnd-circle {width: 35px;height: 35px;line-height: 45px;text-align: center;border: 5px solid #000000;border-radius: 100%;cursor: move;font-size: 12px;margin-top: 30px;
}.dnd-start {border: 2px solid #000000;
}.x6-widget-stencil {background-color: #f8f9fb;
}.x6-widget-stencil-title {background: #eee;font-size: 1rem;
}.x6-widget-stencil-group-title {font-size: 1rem !important;background-color: #fff !important;height: 40px !important;
}.x6-widget-transform {margin: -1px 0 0 -1px;padding: 0px;border: 1px solid #239edd;
}.x6-widget-transform > div {border: 1px solid #239edd;
}.x6-widget-transform > div:hover {background-color: #3dafe4;
}.x6-widget-transform-active-handle {background-color: #3dafe4;
}.x6-widget-transform-resize {border-radius: 0;
}</style>
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