51 lines
2.0 KiB
JavaScript
51 lines
2.0 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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var EventEmitter2_1 = require("./common/EventEmitter2");
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var CharMeasure = (function () {
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function CharMeasure(document, parentElement) {
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this._onCharSizeChanged = new EventEmitter2_1.EventEmitter2();
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this._document = document;
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this._parentElement = parentElement;
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this._measureElement = this._document.createElement('span');
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this._measureElement.classList.add('xterm-char-measure-element');
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this._measureElement.textContent = 'W';
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this._measureElement.setAttribute('aria-hidden', 'true');
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this._parentElement.appendChild(this._measureElement);
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}
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Object.defineProperty(CharMeasure.prototype, "onCharSizeChanged", {
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get: function () { return this._onCharSizeChanged.event; },
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enumerable: true,
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configurable: true
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});
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Object.defineProperty(CharMeasure.prototype, "width", {
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get: function () {
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return this._width;
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},
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enumerable: true,
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configurable: true
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});
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Object.defineProperty(CharMeasure.prototype, "height", {
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get: function () {
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return this._height;
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},
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enumerable: true,
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configurable: true
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});
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CharMeasure.prototype.measure = function (options) {
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this._measureElement.style.fontFamily = options.fontFamily;
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this._measureElement.style.fontSize = options.fontSize + "px";
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var geometry = this._measureElement.getBoundingClientRect();
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if (geometry.width === 0 || geometry.height === 0) {
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return;
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}
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var adjustedHeight = Math.ceil(geometry.height);
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if (this._width !== geometry.width || this._height !== adjustedHeight) {
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this._width = geometry.width;
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this._height = adjustedHeight;
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this._onCharSizeChanged.fire();
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}
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};
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return CharMeasure;
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}());
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exports.CharMeasure = CharMeasure;
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//# sourceMappingURL=CharMeasure.js.map
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