逐步完成前后端服务器

frontend/node_modules/zrender/lib/graphic/TSpan.js

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+import { __extends } from "tslib";
+import Displayable from './Displayable.js';
+import { getBoundingRect } from '../contain/text.js';
+import { DEFAULT_PATH_STYLE } from './Path.js';
+import { createObject, defaults } from '../core/util.js';
+import { DEFAULT_FONT } from '../core/platform.js';
+export var DEFAULT_TSPAN_STYLE = defaults({
+    strokeFirst: true,
+    font: DEFAULT_FONT,
+    x: 0,
+    y: 0,
+    textAlign: 'left',
+    textBaseline: 'top',
+    miterLimit: 2
+}, DEFAULT_PATH_STYLE);
+var TSpan = (function (_super) {
+    __extends(TSpan, _super);
+    function TSpan() {
+        return _super !== null && _super.apply(this, arguments) || this;
+    }
+    TSpan.prototype.hasStroke = function () {
+        var style = this.style;
+        var stroke = style.stroke;
+        return stroke != null && stroke !== 'none' && style.lineWidth > 0;
+    };
+    TSpan.prototype.hasFill = function () {
+        var style = this.style;
+        var fill = style.fill;
+        return fill != null && fill !== 'none';
+    };
+    TSpan.prototype.createStyle = function (obj) {
+        return createObject(DEFAULT_TSPAN_STYLE, obj);
+    };
+    TSpan.prototype.setBoundingRect = function (rect) {
+        this._rect = rect;
+    };
+    TSpan.prototype.getBoundingRect = function () {
+        var style = this.style;
+        if (!this._rect) {
+            var text = style.text;
+            text != null ? (text += '') : (text = '');
+            var rect = getBoundingRect(text, style.font, style.textAlign, style.textBaseline);
+            rect.x += style.x || 0;
+            rect.y += style.y || 0;
+            if (this.hasStroke()) {
+                var w = style.lineWidth;
+                rect.x -= w / 2;
+                rect.y -= w / 2;
+                rect.width += w;
+                rect.height += w;
+            }
+            this._rect = rect;
+        }
+        return this._rect;
+    };
+    TSpan.initDefaultProps = (function () {
+        var tspanProto = TSpan.prototype;
+        tspanProto.dirtyRectTolerance = 10;
+    })();
+    return TSpan;
+}(Displayable));
+TSpan.prototype.type = 'tspan';
+export default TSpan;