var dataUtil = require("../../utils/data_structure_util"); var classUtil = require("../../utils/class_util"); var _sub_pixel_optimize = require("../../utils/sub_pixel_optimize"); var subPixelOptimizeLine = _sub_pixel_optimize.subPixelOptimizeLine; var CableLike = require("../link/CableLike"); var Path = require("../Path"); 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 _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); } function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; } 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.line.Line * Line. * * * 直线。所有线条的特征是: * - 线条可以移动位置,但不能进行其它仿射变换,scale/rotate/skew 都不可以。所以计算线条的相关参数时可以做简化,只要计算 position 和 translate 就可以了。 * - 线条总是画在全局空间中。 * - 线条不能加到 Group 中。 * @docauthor 大漠穷秋 <damoqiongqiu@126.com> */ var Line = /*#__PURE__*/ function (_Path) { _inherits(Line, _Path); /** * @method constructor Line * @param {Object} options */ function Line(options) { var _this; _classCallCheck(this, Line); _this = _possibleConstructorReturn(this, _getPrototypeOf(Line).call(this, dataUtil.merge({ shape: { x1: 0, y1: 0, x2: 0, y2: 0, percent: 1 }, style: { stroke: '#000', fill: null } }, options, true))); /** * @property {String} type */ _this.type = 'line'; classUtil.inheritProperties(_assertThisInitialized(_this), CableLike, _this.options); classUtil.copyOwnProperties(_assertThisInitialized(_this), _this.options, ['style', 'shape']); _this.transformable = false; return _this; } /** * @method buildPath * Build the path of current line, the data structure is like the path attribute in SVG. * * * 构建当前线条的路径,数据结构类似 SVG 中的 path 属性。 * @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); } /** * @protected * @method renderTransformControls * Disable renderTransformControls method in Element, because we don't allow transformation on lines. * * * 禁用 Elemnet 类上的 renderTransformControls 方法,因为我们不希望在线条上使用几何变换。 * @param {*} ctx * @param {*} prevEl */ }, { key: "renderTransformControls", value: function renderTransformControls(ctx, prevEl) {} /** * @method pointAt * Get point at percent, this value is between 0 and 1. * * * 按照比例获取线条上的点,取值范围在 0 到 1 之间。 * @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]; } }, { key: "firstPoint", value: function firstPoint() { return [this.shape.x1, this.shape.y1]; } }, { key: "firstTwoPoints", value: function firstTwoPoints() { return [[this.shape.x1, this.shape.y1], [this.shape.x2, this.shape.y2]]; } }, { key: "lastPoint", value: function lastPoint() { return [this.shape.x2, this.shape.y2]; } }, { key: "lastTwoPoints", value: function lastTwoPoints() { return [[this.shape.x2, this.shape.y2], [this.shape.x1, this.shape.y1]]; } }, { key: "setStartPoint", value: function setStartPoint(x, y) { this.shape.x1 = x; this.shape.y1 = y; } }, { key: "setEndPoint", value: function setEndPoint(x, y) { this.shape.x2 = x; this.shape.y2 = y; } }, { key: "toJSONObject", value: function toJSONObject() { var result = Path.prototype.toJSONObject.call(this); result.fromId = this.fromId; result.toId = this.toId; result.fromPosition = this.fromPosition; result.toPosition = this.toPosition; result.isCable = this.isCable; return result; } }]); return Line; }(Path); classUtil.mixin(Line, CableLike); var _default = Line; module.exports = _default;