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smartwell_front / src / components / Echart / BarChartDouble.vue
liyaguang on 14 Jan 9 KB 需求修改
<script lang="ts" setup name="BarChartVertical">
/**
 * 垂直条形图双倍,支持渐变,支持增加背景颜色
 * 效果图在 计量业务管理系统 - 数据管理 - 环境看板 - 设备在线状态分析
 */
import * as echarts from 'echarts/core'
import type { ECharts } from 'echarts'
import { init } from 'echarts'
import type { Ref } from 'vue'
import type { ECBasicOption } from 'echarts/types/dist/shared'
import type { barOption, barSeriesOption, lineDataI } from './echart-interface'
import tdTheme from './theme.json' // 引入默认主题
const props = defineProps({
  /**
   * id
   */
  id: {
    type: String,
    default: 'chart',
  },
  /**
   * 标题
   */
  title: {
    type: String,
    default: '',
  },
  /**
   * 标题样式
   */
  titleTextStyle: {
    type: Object,
    default: () => {
      return {
        color: '#333',
        fontStyle: 'normal',
        fontWeight: 'bolder',
        fontSize: 14,
        lineHeight: 56,
      }
    },
  },
  /**
   * 加载状态
   */
  loading: {
    type: Boolean,
    default: false,
  },
  /**
   * 网格配置
   */
  grid: {
    type: Object,
    default: () => {
      return {
        top: 50,
        left: 20,
        right: 20,
        bottom: 10,
        containLabel: true, // 是否包含坐标轴的刻度标签
      }
    },
  },
  /**
   * 图例设置对象
   */
  legend: {
    type: Object,
    default: () => {
      return {
        show: true,
        icon: 'circle',
        orient: 'vertile', // 图例方向
        align: 'left', // 图例标记和文本的对齐,默认自动
        top: 5,
        right: 20,
        itemWidth: 12,
        itemHeight: 12,
        padding: [0, 0, 0, 120],
      }
    },
  },
  /**
   * 图例列表,非必传
   */
  legendData: {
    type: Array<string>,
    default: () => { return [] },
  },
  /**
   * 图表宽
   */
  width: {
    type: String,
    default: '100%',
  },
  /**
   * 图表高
   */
  height: {
    type: String,
    default: '100%',
  },
  /**
   * X轴刻度数据,格式为['周一','周二'...]
   */
  xAxisData: {
    type: Array<string>,
    default: () => { return [] },
  },
  /**
   * 数据,格式为[0,0,0,...0]
   */
  data1: {
    type: Array<lineDataI>,
    default: () => { return [] },
  },
  /**
   * 数据,格式为[0,0,0,...0]
   */
  data2: {
    type: Array<lineDataI>,
    default: () => { return [] },
  },
  /**
   * 固定纵轴最大值,非必填
   */
  max: {
    type: [Number, String],
    default: '',
  },
  /**
   * 单位
   */
  unit: {
    type: String,
    default: '',
  },
  /**
   * 调色盘取色策略: series按照系列,data按照数据项
   */
  colorBy: {
    type: String,
    default: 'series',
  },
  /**
   * 柱子颜色,渐变,
   * 若colorBy为data, 格式[['柱1颜色1','柱1颜色2','柱1颜色3'],['柱2颜色1','柱2颜色2','柱2颜色3']]
   * 若colorBy为series, 格式[['柱1颜色1','柱1颜色2','柱1颜色3']]
   */
  colors: {
    type: Array,
    default: () => {
      return [
        ['#2d8cf0', '#fff'],
        ['#2352d6', '#fff'],
        ['#fed700', '#fff'],
        ['#feb501', '#fff'],
      ]
    },
  },
  /**
   * 柱子背景颜色
   */
  backgroundColor: {
    type: String,
    default: '',
  },
  /**
   * 柱子圆角
   */
  barConer: {
    type: [Number, Array],
    default: 50,
  },
  /**
   * 柱子宽度
   */
  barWidth: {
    type: [Number, String],
    default: '',
  },
  // 是否显示X轴线
  showXAxis: {
    type: Boolean,
    default: true,
  },
  // 是否显示Y轴线
  showYAxis: {
    type: Boolean,
    default: false,
  },
  // 是否显示Y轴线
  showYSplitLine: {
    type: Boolean,
    default: true,
  },
  /**
   * 轴线颜色
   */
  axisLineColor: {
    type: String,
    default: '#96989b',
  },
  /**
   * 轴线上文字颜色
   */
  fontColor: {
    type: String,
    default: '#000000',
  },
  // 轴线文本宽度
  axisLabelWidth: {
    type: [Number, String],
    default: '',
  },
  /**
   * 是否显示标签
   */
  showLabel: {
    type: Boolean,
    default: true,
  },
  /**
   * 图形上文本标签颜色
   */
  labelColor: {
    type: String,
    default: '#3d7eff',
  },
  /**
   * 标签位置,top / left / right / bottom / inside / insideLeft / insideRight / insideTop / insideBottom / insideTopLeft / insideBottomLeft / insideTopRight / insideBottomRight
   */
  labelPosition: {
    type: String,
    default: 'top',
  },
  /**
   * 标签格式化
   */
  labelFormatter: {
    type: String,
    default: '{c}',
  },
  /**
   * 是否为渐变柱状图
   */
  gradient: {
    type: Boolean,
    default: true,
  },
})

// 图表对象
let chart: ECharts
const chartRef: Ref<HTMLElement | null> = ref(null)

// 监听数据变化
watch(
  [() => props.xAxisData, props.data1, props.data2], ([newName, newNums], [oldName, oldNums]) => {
    console.log(props.data1, 'props.data1props.data1')
    refreshChart()
  },
  {
    immediate: true,
    deep: true,
  },
)
// 构建option
function buildOption() {
  const option: barOption = {
    grid: props.grid,
    legend: props.legend, // 图例
    tooltip: {
      trigger: 'axis',
      textStyle: {
        fontSize: 16,
      },
      axisPointer: {
        type: 'cross',
        label: {
          fontSize: 13,
        },
      },
      valueFormatter: (value: string | number) => {
        return value ? value + props.unit : value === 0 ? '0' : ''
      },
    }, // 提示框
    yAxis: [
      {
        name: props.unit,
        type: 'value',
        boundaryGap: true,
        axisLine: {
          show: props.showYAxis,
          lineStyle: {
            color: props.axisLineColor, // 轴线的颜色
          },
        },
        nameTextStyle: { // 坐标轴名称的文字样式
          color: props.fontColor,
          fontSize: '60%',
          verticalAlign: 'middle',
        },
        axisLabel: {
          show: true,
          color: props.fontColor, // y轴名称颜色
          fontSize: 14,
        },
        splitLine: {
          show: props.showYSplitLine,
          lineStyle: {
            color: ['#bfbfbf'],
            type: 'dashed',
          },
        },
      },
    ],
    xAxis: [
      {
        type: 'category',
        boundaryGap: true,
        axisLine: {
          show: props.showXAxis,
          lineStyle: {
            color: props.axisLineColor, // 轴线的颜色
          },
        },
        axisLabel: {
          color: props.fontColor,
          fontSize: 15,
        },
        splitLine: {
          show: false,
        },
        data: [],
      }, {
        type: 'category',
        axisLine: {
          show: false,
        },
        // axisTick: {
        //   show: false,
        // },
        axisLabel: {
          show: false,
        },
        // splitArea: {
        //   show: false,
        // },
        splitLine: {
          show: false,
        },
        data: [],
      },
    ],
    series: [] as barSeriesOption[],
  }
  // 标题
  if (props.title) {
    option.title = {
      show: true,
      text: props.title,
      textStyle: props.titleTextStyle,
      padding: 0,
      top: -16,
    }
  }
  // 图例
  if (props.legend && props.legendData.length > 0) {
    option.legend!.data = props.legendData
  }
  // 横轴数据
  if (props.xAxisData && props.xAxisData.length > 0) {
    if (Array.isArray(option.xAxis) && option.xAxis.length > 0) {
      option.xAxis[0].data = props.xAxisData // 横轴, 水平柱状图,y轴为横轴
      option.xAxis[1].data = props.xAxisData // 横轴, 水平柱状图,y轴为横轴
    }
  }
  // 轴线文本宽度
  if (props.axisLabelWidth && Array.isArray(option.xAxis) && option.xAxis.length > 0) {
    option.xAxis[0].axisLabel!.width = props.axisLabelWidth
  }
  // 如果有最大值规定,固定最大值
  if (props.max && Array.isArray(option.yAxis) && option.yAxis.length > 0) {
    option.yAxis[0].max = props.max
  }
  // 数据
  if (props.data1) {
    const newSeries: barSeriesOption[] = [
      {
        name: props.legendData[0] || '',
        type: 'bar',
        xAxisIndex: 1,
        itemStyle: {
          normal: {
            show: true,
            color: '#ccc',
            barBorderRadius: 2,
            borderWidth: 0,
            // borderColor: '#333',
          },
        },
        barWidth: '25%',
        data: props.data1,
      },
      {
        name: props.legendData[1] || '',
        type: 'bar',
        barWidth: '25%',
        itemStyle: {
          normal: {
            show: true,
            color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
              offset: 0,
              color: '#60acfc',
            }, {
              offset: 1,
              color: '#60acfc',
            }]),
            barBorderRadius: 2,
            borderWidth: 0,
            // borderColor: '#333',
          },
        },
        // label: {
        //   normal: {
        //     show: true,
        //     position: 'top',
        //     textStyle: {
        //       color: '#fff',
        //     },
        //   },
        // },
        barGap: '100%',
        data: props.data2,
      },
    ]
    console.log(newSeries, 'double')
    option.series = newSeries
  }
  return option
}
// 初始化图表
function initChart() {
  chart = init(chartRef.value as HTMLElement, tdTheme)
  chart.setOption({})
}

// 刷新图表
function refreshChart() {
  if (chart) {
    const option = buildOption()
    chart.setOption(option as unknown as ECBasicOption, true)
  }
}

window.addEventListener('resize', () => {
  chart.resize()
})
onBeforeUnmount(() => {
  window.addEventListener('resize', () => {})
})
onMounted(() => {
  initChart()
})
</script>

<template>
  <div :id="id" ref="chartRef" v-loading="loading" class="chart" :style="{ height, width }" />
</template>

<style lang="scss" scoped>
.chart {
  width: 100%;
  height: 100%;
}
</style>