wui-bigdata/dist-modules/BarChart.js

Big data visualization library for WUI framework.

'use strict';

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

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

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 BarChart = function (_Component) {
  _inherits(BarChart, _Component);

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

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

    _this.state = {
      data: [{ value: 50 }, { value: 43 }, { value: 120 }, { value: 87 }, { value: 99 }, { value: 167 }, { value: 142 }]
    };
    return _this;
  }

  _createClass(BarChart, [{
    key: 'sortItems',
    value: function sortItems() {
      this.setState({
        data: this.state.data.sort(function (a, b) {
          return a.value - b.value;
        })
      });
    }
  }, {
    key: 'addItem',
    value: function addItem() {
      this.state.data.push({ value: Math.floor(Math.random() * 100) });
      this.forceUpdate();
    }
  }, {
    key: 'mouseEnter',
    value: function mouseEnter(index) {
      this.state.data[index].fill = 'yellow';
      this.forceUpdate();
    }
  }, {
    key: 'mouseLeave',
    value: function mouseLeave(index) {
      this.state.data[index].fill = 'steelblue';
      this.forceUpdate();
    }
  }, {
    key: 'componentDidMount',
    value: function componentDidMount() {
      _d2.default.select(this.refs.xAxis).call(this.xAxis);
      _d2.default.select(this.refs.yAxis).call(this.yAxis);
    }
  }, {
    key: 'componentDidUpdate',
    value: function componentDidUpdate() {
      _d2.default.select(this.refs.xAxis).call(this.xAxis);
      _d2.default.select(this.refs.yAxis).call(this.yAxis);
    }
  }, {
    key: 'render',
    value: function render() {
      var _this2 = this;

      var width = 600;
      var height = 600;
      var padding = {
        left: 20,
        right: 20,
        top: 20,
        bottom: 20
      };
      var xAxisWidth = 500;
      var yAxisWidth = 500;
      var xScale = _d2.default.scale.ordinal().domain(_d2.default.range(this.state.data.length)).rangeRoundBands([0, xAxisWidth], 0.2);
      var yScale = _d2.default.scale.linear().domain([0, _d2.default.max(this.state.data, function (d) {
        return d.value;
      })]).range([0, yAxisWidth]);
      var rectData = this.state.data.map(function (item, index) {
        return {
          fill: item.fill || 'steelblue',
          x: padding.left + xScale(index),
          y: height - padding.bottom - yScale(item.value),
          width: xScale.rangeBand(),
          height: yScale(item.value)
        };
      });
      var textData = this.state.data.map(function (item, index) {
        return {
          fill: 'white',
          fontSize: '14px',
          textAnchor: 'middle',
          x: padding.left + xScale(index),
          y: height - padding.bottom - yScale(item.value),
          dx: xScale.rangeBand() / 2,
          dy: '1em',
          value: item.value
        };
      });
      this.xAxis = _d2.default.svg.axis().scale(xScale).orient('bottom');
      yScale.range([yAxisWidth, 0]);
      this.yAxis = _d2.default.svg.axis().scale(yScale).orient('left');

      return _react2.default.createElement(
        'div',
        null,
        _react2.default.createElement(
          'svg',
          { height: height, width: width },
          rectData.map(function (item, index) {
            return _react2.default.createElement('rect', _extends({ onMouseEnter: _this2.mouseEnter.bind(_this2, index),
              onMouseLeave: _this2.mouseLeave.bind(_this2, index),
              key: index }, item));
          }),
          textData.map(function (item, index) {
            return _react2.default.createElement(
              'text',
              _extends({ key: index }, item),
              item.value
            );
          }),
          _react2.default.createElement('g', { ref: 'xAxis',
            className: 'axis',
            transform: 'translate(' + padding.left + ',' + (height - padding.bottom) + ')' }),
          _react2.default.createElement('g', { ref: 'yAxis',
            className: 'axis',
            transform: 'translate(' + padding.left + ',' + (height - padding.top - yAxisWidth) + ')' })
        ),
        _react2.default.createElement(
          'button',
          { onClick: this.sortItems.bind(this) },
          'Sort'
        ),
        _react2.default.createElement(
          'button',
          { onClick: this.addItem.bind(this) },
          'Add'
        )
      );
    }
  }]);

  return BarChart;
}(_react.Component);

exports.default = BarChart;