47 lines
2.1 KiB
JavaScript
47 lines
2.1 KiB
JavaScript
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/*
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* modified from the typscript QR Code generator input demo
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*
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* Copyright (c) Project Nayuki. (MIT License)
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* https://www.nayuki.io/page/qr-code-generator-library
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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* - The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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* - The Software is provided "as is", without warranty of any kind, express or
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* implied, including but not limited to the warranties of merchantability,
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* fitness for a particular purpose and noninfringement. In no event shall the
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* authors or copyright holders be liable for any claim, damages or other
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* liability, whether in an action of contract, tort or otherwise, arising from,
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* out of or in connection with the Software or the use or other dealings in the
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* Software.
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*/
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function toSvgString(qr, border, lightColor, darkColor) {
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if (border < 0) throw new RangeError("Border must be non-negative");
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let parts = [];
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for (let y = 0; y < qr.size; y++) {
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for (let x = 0; x < qr.size; x++) {
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if (qr.getModule(x, y))
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parts.push(`M${x + border},${y + border}h1v1h-1z`);
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}
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}
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return `<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
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<svg xmlns="http://www.w3.org/2000/svg" version="1.1" viewBox="0 0 ${
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qr.size + border * 2
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} ${qr.size + border * 2}" stroke="none">
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<rect width="100%" height="100%" fill="${lightColor}"/>
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<path d="${parts.join(" ")}" fill="${darkColor}"/>
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</svg>
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`;
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}
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function generateQrCode(text) {
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return toSvgString(qrcodegen.QrCode.encodeText(text, qrcodegen.QrCode.Ecc.MEDIUM), 4);
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}
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