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