wui-bigdata/dist-modules/PieChart.js

Big data visualization library for WUI framework.

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _d = require('d3');

var _d2 = _interopRequireDefault(_d);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var PieChart = function (_Component) {
  _inherits(PieChart, _Component);

  function PieChart() {
    _classCallCheck(this, PieChart);

    var _this = _possibleConstructorReturn(this, Object.getPrototypeOf(PieChart).call(this));

    _this.state = {
      tooltip: '',
      style: {}
    };

    _this.pie = _d2.default.layout.pie().value(function (d) {
      return d[1];
    });
    _this.dataset = [['小米', 60.8], ['三星', 58.4], ['联想', 47.3], ['苹果', 46.6], ['华为', 41.3], ['酷派', 40.1], ['其他', 111.5]];
    _this.pieData = _this.pie(_this.dataset);
    _this.pieData.forEach(function (data) {
      data.dx = 300;
      data.dy = 300;
    });
    return _this;
  }

  _createClass(PieChart, [{
    key: 'onMouseOver',
    value: function onMouseOver(d) {
      this.setState({
        tooltip: d.data[0] + '的出货量为\n        ' + d.data[1] + ' 百万台'
      });
    }
  }, {
    key: 'onMouseMove',
    value: function onMouseMove(color, event) {
      this.setState({
        style: {
          left: event.pageX,
          top: event.pageY + 20,
          boxShadow: '10px 0px 0px ' + color
        }
      });
    }
  }, {
    key: 'onMouseOut',
    value: function onMouseOut() {
      this.setState({
        style: {
          opacity: 0
        }
      });
    }
  }, {
    key: 'onDragMove',
    value: function onDragMove(d, index) {
      this.pieData[index].dx += _d2.default.event.dx;
      this.pieData[index].dy += _d2.default.event.dy;
      this.forceUpdate();
    }
  }, {
    key: 'onDragEnd',
    value: function onDragEnd(d, i) {
      var dis2 = d.dx * d.dx + d.dy * d.dy;

      if (dis2 > 200 * 200) {
        this.dataset.splice(i, 1);

        this.pieData = this.pie(this.dataset);
        this.pieData.forEach(function (data) {
          data.dx = 300;
          data.dy = 300;
        });

        this.forceUpdate();
      }
    }
  }, {
    key: 'componentDidMount',
    value: function componentDidMount() {
      var drag = _d2.default.behavior.drag().origin(null).on('drag', this.onDragMove.bind(this)).on('dragend', this.onDragEnd.bind(this));

      _d2.default.select(this.refs['pie-svg']).selectAll('g').data(this.pieData).call(drag);
    }
  }, {
    key: 'render',
    value: function render() {
      var _this2 = this;

      var width = 600;
      var height = 600;
      var outerRadius = width / 3;
      var innerRadius = 0;
      var arc = _d2.default.svg.arc().innerRadius(innerRadius).outerRadius(outerRadius);
      var color = _d2.default.scale.category20();

      return _react2.default.createElement(
        'div',
        null,
        _react2.default.createElement(
          'svg',
          { width: width, height: height, ref: 'pie-svg' },
          this.pieData.map(function (data, index) {
            return _react2.default.createElement(
              'g',
              { transform: 'translate(' + data.dx + ', ' + data.dy + ')', key: index },
              _react2.default.createElement('path', { fill: color(index), d: arc(data),
                onMouseOver: _this2.onMouseOver.bind(_this2, data),
                onMouseMove: _this2.onMouseMove.bind(_this2, color(index)),
                onMouseOut: _this2.onMouseOut.bind(_this2) }),
              _react2.default.createElement(
                'text',
                { transform: 'translate(' + arc.centroid(data)[0] * 1.4 + ', ' + arc.centroid(data)[1] * 1.4 + ')',
                  textAnchor: 'middle' },
                (Number(data.value) / _d2.default.sum(_this2.dataset, function (d) {
                  return d[1];
                }) * 100).toFixed(1) + '%'
              ),
              _react2.default.createElement('line', { stroke: 'black',
                x1: arc.centroid(data)[0] * 2,
                y1: arc.centroid(data)[1] * 2,
                x2: arc.centroid(data)[0] * 2.2,
                y2: arc.centroid(data)[1] * 2.2 }),
              _react2.default.createElement(
                'text',
                { transform: 'translate(' + arc.centroid(data)[0] * 2.5 + ', ' + arc.centroid(data)[1] * 2.5 + ')',
                  textAnchor: 'middle' },
                data.data[0]
              )
            );
          })
        ),
        _react2.default.createElement(
          'div',
          { className: 'tooltip', style: this.state.style },
          this.state.tooltip
        )
      );
    }
  }]);

  return PieChart;
}(_react.Component);

exports.default = PieChart;