Marc Mintel
5397309103
Some checks failed
Build & Deploy / 🔍 Prepare (push) Successful in 20s
Build & Deploy / 🧪 QA (push) Failing after 34s
Build & Deploy / 🏗️ Build (push) Has started running
Build & Deploy / 🚀 Deploy (push) Has been cancelled
Build & Deploy / 🧪 Smoke Test (push) Has been cancelled
Build & Deploy / ⚡ Lighthouse (push) Has been cancelled
Build & Deploy / 🔔 Notify (push) Has been cancelled
55 lines
2.2 KiB
Plaintext
55 lines
2.2 KiB
Plaintext
"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 |