<template>
  <section class="chart-container">
    <el-row>
      <el-col :span="12">
        <div id="chartColumn" style="width:100%; height:400px;"></div>
      </el-col>
      <el-col :span="12">
        <div id="chartBar" style="width:100%; height:400px;"></div>
      </el-col>
      <el-col :span="12">
        <div id="chartLine" style="width:100%; height:400px;"></div>
      </el-col>
      <el-col :span="12">
        <div id="chartPie" style="width:100%; height:400px;"></div>
      </el-col>
    </el-row>
  </section>
</template>
<script>
export default {
  name: 'MenuEcharts',
  data() {
    return {
      chartColumn: null,
      chartBar: null,
      chartLine: null,
      chartPie: null
    };
  },
  methods: {
    drawColumnChart() {
      this.chartColumn = this.$echarts.init(
        document.getElementById('chartColumn')
      );
      this.chartColumn.setOption({
        title: {
          text: 'Column Chart'
        },
        tooltip: {},
        xAxis: {
          data: ['衬衫', '羊毛衫', '雪纺衫', '裤子', '高跟鞋', '袜子']
        },
        yAxis: {},
        series: [
          {
            name: '销量',
            type: 'bar',
            data: [5, 20, 36, 10, 10, 20]
          }
        ]
      });
    },
    drawBarChart() {
      this.chartBar = this.$echarts.init(document.getElementById('chartBar'));
      this.chartBar.setOption({
        title: {
          text: 'Bar Chart',
          subtext: '数据来自网络'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'shadow'
          }
        },
        legend: {
          data: ['2011年', '2012年']
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: {
          type: 'value',
          boundaryGap: [0, 0.01]
        },
        yAxis: {
          type: 'category',
          data: ['巴西', '印尼', '美国', '印度', '中国', '世界人口(万)']
        },
        series: [
          {
            name: '2011年',
            type: 'bar',
            data: [18203, 23489, 29034, 104970, 131744, 630230]
          },
          {
            name: '2012年',
            type: 'bar',
            data: [19325, 23438, 31000, 121594, 134141, 681807]
          }
        ]
      });
    },
    drawLineChart() {
      this.chartLine = this.$echarts.init(document.getElementById('chartLine'));
      this.chartLine.setOption({
        title: {
          text: 'Line Chart'
        },
        tooltip: {
          trigger: 'axis'
        },
        legend: {
          data: ['邮件营销', '联盟广告', '搜索引擎']
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: {
          type: 'category',
          boundaryGap: false,
          data: ['周一', '周二', '周三', '周四', '周五', '周六', '周日']
        },
        yAxis: {
          type: 'value'
        },
        series: [
          {
            name: '邮件营销',
            type: 'line',
            stack: '总量',
            data: [120, 132, 101, 134, 90, 230, 210]
          },
          {
            name: '联盟广告',
            type: 'line',
            stack: '总量',
            data: [220, 182, 191, 234, 290, 330, 310]
          },
          {
            name: '搜索引擎',
            type: 'line',
            stack: '总量',
            data: [820, 932, 901, 934, 1290, 1330, 1320]
          }
        ]
      });
    },
    drawPieChart() {
      this.chartPie = this.$echarts.init(document.getElementById('chartPie'));
      this.chartPie.setOption({
        title: {
          text: 'Pie Chart',
          subtext: '纯属虚构',
          x: 'center'
        },
        tooltip: {
          trigger: 'item',
          formatter: '{a} <br/>{b} : {c} ({d}%)'
        },
        legend: {
          orient: 'vertical',
          left: 'left',
          data: ['直接访问', '邮件营销', '联盟广告', '视频广告', '搜索引擎']
        },
        series: [
          {
            name: '访问来源',
            type: 'pie',
            radius: '55%',
            center: ['50%', '60%'],
            data: [
              {
                value: 335,
                name: '直接访问'
              },
              {
                value: 310,
                name: '邮件营销'
              },
              {
                value: 234,
                name: '联盟广告'
              },
              {
                value: 135,
                name: '视频广告'
              },
              {
                value: 1548,
                name: '搜索引擎'
              }
            ],
            itemStyle: {
              emphasis: {
                shadowBlur: 10,
                shadowOffsetX: 0,
                shadowColor: 'rgba(0, 0, 0, 0.5)'
              }
            }
          }
        ]
      });
    },
    drawCharts() {
      this.drawColumnChart();
      this.drawBarChart();
      this.drawLineChart();
      this.drawPieChart();
    }
  },
  mounted: function() {
    // console.log(this.$echarts);
    this.drawCharts();
  },
  updated: function() {
    this.drawCharts();
  }
};
</script>
<style scoped>
.chart-container {
  width: 100%;
  float: left;
}

.el-col {
  padding: 30px 20px;
}
</style>
