snakerflow-designer-vue-plus/packages/SnakerFlowDesigner/src/snakerflow/task/index.js

首先感谢snakerflow-designer-vue的原作者，提供了一个如此好用的工具。本人在此基础上，添加了子流程相关的节点，并将折线改为横线，横线文字说明可跟着横线的位置自动跟随移动。

import { h, RectNode, RectNodeModel } from '@logicflow/core'
import { nodeStyleHandle } from '../tool'
class TaskModel extends RectNodeModel {
  static extendKey = 'TaskModel';
  constructor (data, graphModel) {
    super(data, graphModel)
    this.width = data.properties.width ? data.properties.width : 130
    this.height = data.properties.height ? data.properties.height : 50
  }

  getNodeStyle () {
    const style = super.getNodeStyle()
    return nodeStyleHandle(this, style)
  }
}

class TaskView extends RectNode {
  static extendKey = 'TaskNode';
  getLabelShape () {
    const { model } = this.props
    const { x, y, width, height } = model
    const style = model.getNodeStyle()
    return h(
      'svg',
      {
        x: x - width / 2 + 5,
        y: y - height / 2 + 5,
        width: 25,
        height: 25,
        viewBox: '0 0 1274 1024'
      },
      h('path', {
        fill: style.stroke,
        d:
          'M655.807326 287.35973m-223.989415 0a218.879 218.879 0 1 0 447.978829 0 218.879 218.879 0 1 0-447.978829 0ZM1039.955839 895.482975c-0.490184-212.177424-172.287821-384.030443-384.148513-384.030443-211.862739 0-383.660376 171.85302-384.15056 384.030443L1039.955839 895.482975z'
      })
    )
  }

  getShape () {
    const { model } = this.props
    const { x, y, width, height, radius } = model
    const style = model.getNodeStyle()
    // todo: 将basic-shape对外暴露，在这里可以直接用。现在纯手写有点麻烦。
    return h('g', {}, [
      h('rect', {
        ...style,
        x: x - width / 2,
        y: y - height / 2,
        rx: radius,
        ry: radius,
        width,
        height
      }),
      this.getLabelShape()
    ])
  }
}

const Task = {
  type: 'snaker:task',
  view: TaskView,
  model: TaskModel
}

export { TaskView, TaskModel }
export default Task