H5

2024-04-30 18:07:59 +08:00
parent b72c4d7af1
commit 56863dd624
1369 changed files with 156460 additions and 0 deletions
--- a/node_modules/html2canvas/dist/lib/render/font-metrics.js
+++ b/node_modules/html2canvas/dist/lib/render/font-metrics.js
@@ -0,0 +1,55 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.FontMetrics = void 0;
+var util_1 = require("../core/util");
+var SAMPLE_TEXT = 'Hidden Text';
+var FontMetrics = /** @class */ (function () {
+    function FontMetrics(document) {
+        this._data = {};
+        this._document = document;
+    }
+    FontMetrics.prototype.parseMetrics = function (fontFamily, fontSize) {
+        var container = this._document.createElement('div');
+        var img = this._document.createElement('img');
+        var span = this._document.createElement('span');
+        var body = this._document.body;
+        container.style.visibility = 'hidden';
+        container.style.fontFamily = fontFamily;
+        container.style.fontSize = fontSize;
+        container.style.margin = '0';
+        container.style.padding = '0';
+        container.style.whiteSpace = 'nowrap';
+        body.appendChild(container);
+        img.src = util_1.SMALL_IMAGE;
+        img.width = 1;
+        img.height = 1;
+        img.style.margin = '0';
+        img.style.padding = '0';
+        img.style.verticalAlign = 'baseline';
+        span.style.fontFamily = fontFamily;
+        span.style.fontSize = fontSize;
+        span.style.margin = '0';
+        span.style.padding = '0';
+        span.appendChild(this._document.createTextNode(SAMPLE_TEXT));
+        container.appendChild(span);
+        container.appendChild(img);
+        var baseline = img.offsetTop - span.offsetTop + 2;
+        container.removeChild(span);
+        container.appendChild(this._document.createTextNode(SAMPLE_TEXT));
+        container.style.lineHeight = 'normal';
+        img.style.verticalAlign = 'super';
+        var middle = img.offsetTop - container.offsetTop + 2;
+        body.removeChild(container);
+        return { baseline: baseline, middle: middle };
+    };
+    FontMetrics.prototype.getMetrics = function (fontFamily, fontSize) {
+        var key = fontFamily + " " + fontSize;
+        if (typeof this._data[key] === 'undefined') {
+            this._data[key] = this.parseMetrics(fontFamily, fontSize);
+        }
+        return this._data[key];
+    };
+    return FontMetrics;
+}());
+exports.FontMetrics = FontMetrics;
+//# sourceMappingURL=font-metrics.js.map