var Element = require("./Element"); var textUtil = require("../utils/text_util"); var _constants = require("../utils/constants"); var ContextCachedBy = _constants.ContextCachedBy; 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.Text * * @docauthor 大漠穷秋 <damoqiongqiu@126.com> */ var Text = /*#__PURE__*/ function (_Element) { _inherits(Text, _Element); /** * @method constructor Text * @param {Object} opts */ function Text(opts) { var _this; _classCallCheck(this, Text); _this = _possibleConstructorReturn(this, _getPrototypeOf(Text).call(this, opts)); /** * @property {String} type */ _this.type = 'text'; return _this; } /** * @method render */ _createClass(Text, [{ key: "render", value: function render() { var ctx = this.ctx; var prevEl = this.prevEl; var style = this.style; // Optimize, avoid normalize every time. this.__dirty && textUtil.normalizeTextStyle(style, true); // Use props with prefix 'text'. style.fill = null; style.stroke = null; style.shadowBlur = null; style.shadowColor = null; style.shadowOffsetX = null; style.shadowOffsetY = null; var text = style.text; // Convert to string text != null && (text += ''); // Do not apply style.bind in Text node. Because the real bind job // is in textUtil.renderText, and performance of text render should // be considered. // style.bind(ctx, this, prevEl); if (!textUtil.needDrawText(text, style)) { // The current el.style is not applied // and should not be used as cache. ctx.__attrCachedBy = ContextCachedBy.NONE; return; } this.applyTransform(ctx); textUtil.renderText(this, ctx, text, style, null, prevEl); this.restoreTransform(ctx); } /** * @method getBoundingRect * Get bounding rect of this element, NOTE: * this method will return the bounding rect without transforming(translate/scale/rotate/skew). * However, direct modifications to the shape property will be reflected in the bouding-rect. * For example, if we modify this.shape.width directly, then the new width property will be calculated. * * * 获取当前元素的边界矩形,注意: * 此方法返回的是没有经过 transform(translate/scale/rotate/skew) 处理的边界矩形,但是对 shape 属性直接进行的修改会反映在获取的边界矩形上。 * 例如,用代码直接对 this.shape.width 进行赋值,那么在计算边界矩形时就会用新的 width 属性进行计算。 */ }, { key: "getBoundingRect", value: function getBoundingRect() { var style = this.style; // Optimize, avoid normalize every time. this.__dirty && textUtil.normalizeTextStyle(style, true); if (!this.__boundingRect) { var text = style.text; text != null ? text += '' : text = ''; var rect = textUtil.getBoundingRect(style.text + '', style.font, style.textAlign, style.textVerticalAlign, style.textPadding, style.textLineHeight, style.rich); rect.x1 += style.x || 0; rect.y1 += style.y || 0; if (textUtil.getStroke(style.textStroke, style.textStrokeWidth)) { var w = style.textStrokeWidth; rect.x1 -= w / 2; rect.y1 -= w / 2; rect.width += w; rect.height += w; rect.x2 = rect.x1 + rect.width; rect.y2 = rect.y1 + rect.height; } this.__boundingRect = rect; } return this.__boundingRect; } }]); return Text; }(Element); module.exports = Text;