21 lines
839 B
JavaScript
21 lines
839 B
JavaScript
import { __spreadArrays } from "tslib";
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import values from './values';
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import memoize from './memoize';
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import isString from './is-string';
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var ctx;
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/**
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* 计算文本的宽度
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*/
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export default memoize(function (text, font) {
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if (font === void 0) { font = {}; }
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var fontSize = font.fontSize, fontFamily = font.fontFamily, fontWeight = font.fontWeight, fontStyle = font.fontStyle, fontVariant = font.fontVariant;
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if (!ctx) {
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ctx = document.createElement('canvas').getContext('2d');
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}
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ctx.font = [fontStyle, fontVariant, fontWeight, fontSize + "px", fontFamily].join(' ');
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return ctx.measureText(isString(text) ? text : '').width;
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}, function (text, font) {
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if (font === void 0) { font = {}; }
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return __spreadArrays([text], values(font)).join('');
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});
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//# sourceMappingURL=measure-text-width.js.map
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