var Path = require("../Path");

var _sub_pixel_optimize = require("../utils/sub_pixel_optimize");

var subPixelOptimizeLine = _sub_pixel_optimize.subPixelOptimizeLine;

var dataUtil = require("../../core/utils/data_structure_util");

function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

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

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }

function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }

function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

/**
 * @class qrenderer.graphic.shape.Line 
 * 直线
 * @docauthor 大漠穷秋 <damoqiongqiu@126.com>
 */
//TODO:Avoid create repeatly.
var defaultConfig = {
  /**
   * @property {String} type
   */
  type: 'line',
  shape: {
    // Start point
    x1: 0,
    y1: 0,
    // End point
    x2: 0,
    y2: 0,
    percent: 1
  },
  style: {
    stroke: '#000',
    fill: null
  }
};

var Line =
/*#__PURE__*/
function (_Path) {
  _inherits(Line, _Path);

  /**
   * @method constructor Line
   * @param {Object} options 
   */
  function Line(options) {
    _classCallCheck(this, Line);

    return _possibleConstructorReturn(this, _getPrototypeOf(Line).call(this, dataUtil.merge(defaultConfig, options, true)));
  }
  /**
   * @method buildPath
   * 绘制元素路径
   * @param {Object} ctx 
   * @param {String} shape 
   */


  _createClass(Line, [{
    key: "buildPath",
    value: function buildPath(ctx, shape) {
      var x1;
      var y1;
      var x2;
      var y2;

      if (this.subPixelOptimize) {
        var subPixelOptimizeOutputShape = {};
        subPixelOptimizeLine(subPixelOptimizeOutputShape, shape, this.style);
        x1 = subPixelOptimizeOutputShape.x1;
        y1 = subPixelOptimizeOutputShape.y1;
        x2 = subPixelOptimizeOutputShape.x2;
        y2 = subPixelOptimizeOutputShape.y2;
      } else {
        x1 = shape.x1;
        y1 = shape.y1;
        x2 = shape.x2;
        y2 = shape.y2;
      }

      var percent = shape.percent;

      if (percent === 0) {
        return;
      }

      ctx.moveTo(x1, y1);

      if (percent < 1) {
        x2 = x1 * (1 - percent) + x2 * percent;
        y2 = y1 * (1 - percent) + y2 * percent;
      }

      ctx.lineTo(x2, y2);
    }
    /**
     * Get point at percent
     * @param  {Number} percent
     * @return {Array<Number>}
     */

  }, {
    key: "pointAt",
    value: function pointAt(p) {
      var shape = this.shape;
      return [shape.x1 * (1 - p) + shape.x2 * p, shape.y1 * (1 - p) + shape.y2 * p];
    }
  }]);

  return Line;
}(Path);

module.exports = Line;