victory-chart/lib/components/victory-area/area.js

Chart Component for Victory

"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 _d3Shape = require("d3-shape");

var _d3Shape2 = _interopRequireDefault(_d3Shape);

var _assign = require("lodash/assign");

var _assign2 = _interopRequireDefault(_assign);

var _victoryCore = require("victory-core");

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 Area = function (_React$Component) {
  _inherits(Area, _React$Component);

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

    return _possibleConstructorReturn(this, Object.getPrototypeOf(Area).apply(this, arguments));
  }

  _createClass(Area, [{
    key: "toNewName",
    value: function toNewName(interpolation) {
      // d3 shape changed the naming scheme for interpolators from "basis" -> "curveBasis" etc.
      var capitalize = function capitalize(s) {
        return s && s[0].toUpperCase() + s.slice(1);
      };
      return "curve" + capitalize(interpolation);
    }
  }, {
    key: "renderArea",
    value: function renderArea(style, interpolation, events) {
      var xScale = this.props.scale.x;
      var yScale = this.props.scale.y;
      var areaStroke = style.stroke ? "none" : style.fill;
      var areaStyle = (0, _assign2.default)({}, style, { stroke: areaStroke });
      var areaFunction = _d3Shape2.default.area().curve(_d3Shape2.default[this.toNewName(interpolation)]).x(function (data) {
        return xScale(data.x);
      }).y1(function (data) {
        return yScale(data.y0 + data.y);
      }).y0(function (data) {
        return yScale(data.y0);
      });
      var path = areaFunction(this.props.data);

      return _react2.default.createElement("path", _extends({ style: areaStyle, d: path }, events));
    }
  }, {
    key: "renderLine",
    value: function renderLine(style, interpolation, events) {
      if (!style.stroke || style.stroke === "none" || style.stroke === "transparent") {
        return undefined;
      }
      var lineStyle = (0, _assign2.default)({}, style, { fill: "none" });
      var xScale = this.props.scale.x;
      var yScale = this.props.scale.y;
      var lineFunction = _d3Shape2.default.line().curve(_d3Shape2.default[this.toNewName(interpolation)]).x(function (data) {
        return xScale(data.x);
      }).y(function (data) {
        return yScale(data.y0 + data.y);
      });
      var path = lineFunction(this.props.data);
      return _react2.default.createElement("path", _extends({ style: lineStyle, d: path }, events));
    }
  }, {
    key: "render",
    value: function render() {
      var props = this.props;

      var style = _victoryCore.Helpers.evaluateStyle(props.style, props.data);
      var interpolation = _victoryCore.Helpers.evaluateProp(props.interpolation, props.data);
      var events = _victoryCore.Helpers.getPartialEvents(props.events, 0, props);
      return _react2.default.createElement(
        "g",
        null,
        this.renderArea(style, interpolation, events),
        this.renderLine(style, interpolation, events)
      );
    }
  }]);

  return Area;
}(_react2.default.Component);

Area.propTypes = {
  data: _react.PropTypes.array,
  interpolation: _react.PropTypes.string,
  scale: _react.PropTypes.object,
  style: _react.PropTypes.object,
  events: _react.PropTypes.object
};
exports.default = Area;