Quantity-Creation-Management-System/src/components/echarts/TimeLineChart.vue

<script setup lang="ts">
import type { OptionsProps } from '@/types/echarts/timeLineChart'

import { nextTick, onMounted, ref, shallowRef, useAttrs, watch } from 'vue'
import { debounceFunc } from '@/utils/common'

import echarts from '.'

// 图表需要的props
const props = defineProps<OptionsProps>()

// 传入的attrs
const attrs = useAttrs()

// 图表实例
const linechart = shallowRef()

// 图表Ref
const chart = ref()

// 颜色
const colorList = [
  '#00e070',
  '#1495eb',
  '#993333', // Dark Red
  '#FFD700', // Bright Yellow
  '#FF00FF', // Magenta
  '#FFA500', // Orange
  '#800080', // Dark Purple
  '#A52A2A', // Brown
  '#FF4500', // Orange Red
  '#FF6347', // Tomato
  '#B22222', // Firebrick
  '#FF1493', // Deep Pink
]

// 格式化tooltip
const formatterTooltip = (params: Array<any>) => {
  let circle = `<span style="display:inline-block;margin-right:5px;border-radius:50%;width:10px;height:10px;left:5px;background-color:`
  let result = `<span style="font-weight:bold;">${params[0].axisValueLabel}</span>`

  params.map((item, index) => {
    let data = `${circle}${colorList[index]}"></span>
    <span >
    <span  style="display: inline-block;  box-sizing: border-box;
  padding-right: 50px;">${item['seriesName']}</span><span>${item['value']}<span>`
    result += `<br/>${data}`
  })
  return result
}

// 尺寸变化
const changeSize = () => {
  nextTick(() => {
    linechart.value?.resize()
  })
}

// 初始化options
const initOptions = () => {
  // 选项
  let options: any = {
    xAxis: {
      type: 'category',
      data: [],
      axisLabel: {
        showMaxLabel: true,
      },
      axisTick: {
        alignWithLabel: true,
      },
    },
    yAxis: {
      type: 'value',
      minInterval: 1,
    },
    tooltip: {
      trigger: 'axis',
      formatter: formatterTooltip,
    },
    legend: {
      orient: 'horizontal', //图例布局方式：水平 'horizontal' 、垂直 'vertical'
      x: 'right', // 横向放置位置，选项：'center'、'left'、'right'、'number'（横向值 px）
      y: 'top', // 纵向放置位置，选项：'top'、'bottom'、'center'、'number'（纵向值 px）
      data: [],
    },
    grid: {
      left: '24px',
      right: '10px',
      containLabel: true,
    },
    series: [],
  }

  // 基本的series数据配置
  let baseSeries = {
    symbol: 'circle',
    symbolSize: 5,
    showSymbol: false,
    // itemStyle要在lineStyle前面，这个item会把line的样式覆盖掉，并且必须要有line，不然也会被item替换掉
    itemStyle: {
      color: 'rgb(255,255,255)',
      borderColor: '#1495eb', // symbol边框颜色
      borderWidth: 2, // symbol边框宽度
    },
    lineStyle: {
      color: '#1495eb',
    },

    name: '今日新增',
    data: [10, 22, 28, 43, 49],
    type: 'line',
    smooth: false,
  }

  linechart.value.clear()

  if (props.seriesData.length) {
    // 最终的siries数组
    let finalSeriesList: any = []

    props.legendData.map((item, index) => {
      const seriesClone = JSON.parse(JSON.stringify(baseSeries))
      // 设置克隆的属性
      seriesClone.name = item
      let reuslt = props.seriesData.find(val => {
        return val.name === item
      })

      seriesClone.data = Object.values(reuslt.data)
      seriesClone.itemStyle.borderColor = colorList[index]
      seriesClone.lineStyle.color = colorList[index]

      // 将克隆后的对象添加到 finalSeriesList 中
      finalSeriesList.push(seriesClone)
    })

    options.series = finalSeriesList
    options.legend.data = Object.values(props.legendData as any)
    options.xAxis.data = props.xAxisData as any
  } else {
    options = {
      title: {
        text: '暂无数据',
        x: 'center',
        y: 'center',
        textStyle: {
          fontSize: 16,
          fontWeight: 'normal',
        },
      },
    }
  }

  linechart.value.setOption(options, true)
}

// 改变加载状态
const changeLoading = (state: boolean) => {
  if (state) linechart.value.showLoading()
  else linechart.value.hideLoading()
}

// 监听options信息的变化
watch(
  () => [props.legendData, props.seriesData, props.xAxisData],
  () => {
    initOptions()
  },
  { deep: true },
)

watch(
  () => attrs['loading-state'] as boolean,
  (newval: boolean) => {
    changeLoading(newval)
  },
  { deep: true },
)

onMounted(() => {
  nextTick(() => {
    // 开始的时候，不要去直接初始化，先展示加载状态，等到数据加载完状态改变，再去设置
    linechart.value = echarts.init(chart.value)

    if (!attrs['loading-state']) initOptions()

    /**
     * @description: 只监听window会导致当侧边栏缩放时，dom大小变化但无法resize
     *              所以需要使用ovserver对整个dom进行监听
     * @return {*}
     */
    // window.addEventListener('resize', debounceFunc(changeSize, 500))
    const debounceChangeSize = debounceFunc(changeSize, 200)
    const ro = new ResizeObserver(debounceChangeSize)
    ro.observe(chart.value)
  })
})
</script>

<template>
  <div class="chart" ref="chart" style="width: 100%; height: 365px"></div>
</template>

<style scoped></style>