24 lines
889 B
JavaScript
24 lines
889 B
JavaScript
"use strict";
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const finalizeGlyphs = require("./glyphs");
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const gcFont = require("./gc");
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module.exports = function finalizeFont(para, glyphStore, excludedCodePoints, restFont) {
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glyphStore = gcFont(glyphStore, excludedCodePoints, restFont, {});
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glyphStore = finalizeGlyphs(para, glyphStore);
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validateMonospace(para, glyphStore);
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return glyphStore;
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};
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// In FontConfig, a font is considered "monospace" if and only if all non-combining characters
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// (AW > 0) have the same width. We use this method to validate whether our "Fixed" subfamilies
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// are properly built.
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function validateMonospace(para, glyphStore) {
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if (!para.forceMonospace) return;
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let awSet = new Set();
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for (const g of glyphStore.glyphs()) {
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const aw = Math.round(g.advanceWidth || 0);
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if (aw > 0) awSet.add(aw);
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}
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if (awSet.size > 1) throw new Error("Unreachable! Fixed variant has wide characters");
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}
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