可视化图表与源代码显示的动态调整

news2024/11/15 9:23:57

可视化图表与源代码显示的动态调整

页面效果描述：本篇代码实现了通过拖动一个可调整大小的分隔符，用户可以动态地调整图表显示区域和源代码显示区域的大小。通过监听鼠标事件，当用户拖动分隔符时，会动态计算并更新两个区域的大小

<!DOCTYPE html>
<html lang="en" style="height: 100%">
<head>
  <meta charset="utf-8">
  <style>
    body, html {
      height: 100%;
      margin: 0;
      display: flex;
      flex-direction: column;
    }
    #main-container {
      display: flex;
      flex: 1; /* 占据剩余空间 */
      overflow: hidden;
    }
    #chart-container {
      flex: 1; /* 初始时占据一半空间 */
      height: 100%;
      overflow: hidden;
      position: relative;
    }
    #source-container {
      flex: 0; /* 初始时不占据空间，根据需要调整 */
      background-color: rgba(111, 231, 35, 0.36);
      padding: 30px;
      overflow: auto;
      height: 90%;
    }
    #splitter {
      background-color: #ccc;
      cursor: ew-resize;
      width: 5px;
      position: absolute;
      right: 0;
      top: 0;
      bottom: 0;
      z-index: 1;
    }
    #downloadButton {
      padding: 10px 20px;
      background-color: #007bff;
      color: #1ed5cf;
      border: none;
      border-radius: 5px;
      cursor: pointer;
      font-size: 16px;
      position: absolute;
      top: 20px;
      right: 20px;
      z-index: 1000;
    }
  </style>
</head>
<body>
  <div id="main-container">
    <div id="chart-container">
      <div id="container" style="height: 100%;"></div>
      <div id="splitter"></div>
    </div>
    <div id="source-container">
      <pre id="source-code"></pre>
      <button id="downloadButton" onclick="downloadSourceCode()">下载</button>
    </div>
  </div>

  <script src="echarts.min.js"></script>
  <script type="text/javascript">
    var dom = document.getElementById('container');
    var myChart = echarts.init(dom, null, {
      renderer: 'canvas',
      useDirtyRect: false
    });
    var app = {};

    var option;

    option = {
  title: {
    text: '题目'
  },
  tooltip: {
    trigger: 'axis',
    axisPointer: {
      type: 'cross',
      label: {
        backgroundColor: '#6a7985'
      }
    }
  },
  legend: {
    data: ['数据1', '数据2', '数据3', '数据4', '数据5']
  },
  // toolbox: {
  //   feature: {
  //     saveAsImage: {}
  //   }
  // },
  grid: {
    left: '3%',
    right: '4%',
    bottom: '3%',
    containLabel: true
  },
  xAxis: [
    {
      type: 'category',
      boundaryGap: false,
      data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
    }
  ],
  yAxis: [
    {
      type: 'value'
    }
  ],
  series: [
    {
      name: '数据1',
      type: 'line',
      stack: 'Total',
      areaStyle: {},
      emphasis: {
        focus: 'series'
      },
      data: [120, 132, 101, 134, 90, 230, 210]
    },
    {
      name: '数据2',
      type: 'line',
      stack: 'Total',
      areaStyle: {},
      emphasis: {
        focus: 'series'
      },
      data: [220, 182, 191, 234, 290, 330, 310]
    },
    {
      name: '数据3',
      type: 'line',
      stack: 'Total',
      areaStyle: {},
      emphasis: {
        focus: 'series'
      },
      data: [150, 232, 201, 154, 190, 330, 410]
    },
    {
      name: '数据4',
      type: 'line',
      stack: 'Total',
      areaStyle: {},
      emphasis: {
        focus: 'series'
      },
      data: [320, 332, 301, 334, 390, 330, 320]
    },
    {
      name: '数据5',
      type: 'line',
      stack: 'Total',
      label: {
        show: true,
        position: 'top'
      },
      areaStyle: {},
      emphasis: {
        focus: 'series'
      },
      data: [820, 932, 901, 934, 1290, 1330, 1320]
    }
  ]
};

    if (option && typeof option === 'object') {
      myChart.setOption(option);
    }

    window.addEventListener('resize', myChart.resize);

    // 设置源代码显示
    document.getElementById('source-code').textContent = document.documentElement.outerHTML;

    let startX, startWidth, isResizing = false;

    document.getElementById('splitter').addEventListener('mousedown', function(e) {
      isResizing = true;
      startX = e.clientX;
      startWidth = document.getElementById('chart-container').offsetWidth;
      document.addEventListener('mousemove', onMouseMove);
      document.addEventListener('mouseup', onMouseUp);
      document.addEventListener('mouseleave', onMouseUp);
    });

    function onMouseMove(e) {
      if (!isResizing) return;
      let newWidth = startWidth + (e.clientX - startX);
      newWidth = Math.max(100, Math.min(document.getElementById('main-container').offsetWidth - 5, newWidth));
      document.getElementById('chart-container').style.flex =
              `${newWidth / document.getElementById('main-container').offsetWidth * 100}%`;
      document.getElementById('source-container').style.flex = `calc(100% - ${newWidth}px)`;
    }

    function onMouseUp() {
      isResizing = false;
      document.removeEventListener('mousemove', onMouseMove);
      document.removeEventListener('mouseup', onMouseUp);
      document.removeEventListener('mouseleave', onMouseUp);
    }

    // 下载源代码功能
     function downloadSourceCode() {
      var element = document.createElement('a');
      element.setAttribute('href', 'data:text/plain;charset=utf-8,' + encodeURIComponent(document.documentElement.outerHTML));
      element.setAttribute('download', 'page.html');

      element.style.display = 'none';
      document.body.appendChild(element);

      element.click();

      document.body.removeChild(element);
    }
  </script>
</body>
</html>