dd_xcx/node_modules/@antv/f2/lib/component/marker.js

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

var _possibleConstructorReturn2 = _interopRequireDefault(require("@babel/runtime/helpers/possibleConstructorReturn"));

var _getPrototypeOf2 = _interopRequireDefault(require("@babel/runtime/helpers/getPrototypeOf"));

var _inheritsLoose2 = _interopRequireDefault(require("@babel/runtime/helpers/inheritsLoose"));

function _createSuper(Derived) { return function () { var Super = (0, _getPrototypeOf2["default"])(Derived), result; if (_isNativeReflectConstruct()) { var NewTarget = (0, _getPrototypeOf2["default"])(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return (0, _possibleConstructorReturn2["default"])(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }

/**
 * marker shapes，used for tooltip and legend
 */
var Util = require('../util/common');

var _require = require('../graphic/index'),
    Shape = _require.Shape;

var SYMBOLS = {
  circle: function circle(x, y, r, ctx) {
    ctx.arc(x, y, r, 0, Math.PI * 2, false);
  },
  square: function square(x, y, r, ctx) {
    ctx.moveTo(x - r, y - r);
    ctx.lineTo(x + r, y - r);
    ctx.lineTo(x + r, y + r);
    ctx.lineTo(x - r, y + r);
    ctx.closePath();
  }
};

var Marker = /*#__PURE__*/function (_Shape) {
  (0, _inheritsLoose2["default"])(Marker, _Shape);

  var _super = _createSuper(Marker);

  function Marker() {
    return _Shape.apply(this, arguments) || this;
  }

  var _proto = Marker.prototype;

  _proto._initProperties = function _initProperties() {
    _Shape.prototype._initProperties.call(this);

    this._attrs.canFill = true;
    this._attrs.canStroke = true;
    this._attrs.type = 'marker';
  };

  _proto.getDefaultAttrs = function getDefaultAttrs() {
    return {
      x: 0,
      y: 0,
      lineWidth: 0
    };
  };

  _proto.createPath = function createPath(context) {
    var attrs = this.get('attrs');
    var x = attrs.x,
        y = attrs.y,
        radius = attrs.radius;
    var symbol = attrs.symbol || 'circle';
    var method;

    if (Util.isFunction(symbol)) {
      method = symbol;
    } else {
      method = SYMBOLS[symbol];
    }

    context.beginPath();
    method(x, y, radius, context, this);
  };

  _proto.calculateBox = function calculateBox() {
    var attrs = this.get('attrs');
    var x = attrs.x,
        y = attrs.y,
        radius = attrs.radius;
    return {
      minX: x - radius,
      minY: y - radius,
      maxX: x + radius,
      maxY: y + radius
    };
  };

  return Marker;
}(Shape);

module.exports = Marker;