forked from MapComplete/MapComplete
27 lines
773 B
TypeScript
27 lines
773 B
TypeScript
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import Qrcode from "qrcode-generator"
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/**
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* Creates a QR-code as Blob
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*/
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export default class Qr {
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private _textToShow: string
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constructor(textToShow: string) {
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this._textToShow = textToShow
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}
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public toImageElement(totalSize: number): string {
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console.log("Creating a QR code for", this._textToShow)
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const typeNumber = 0
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const errorCorrectionLevel = "L"
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const qr = Qrcode(typeNumber, errorCorrectionLevel)
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qr.addData(this._textToShow)
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qr.make()
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const moduleCount = qr.getModuleCount()
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const img = document.createElement("img")
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const cellSize = Math.round(totalSize / moduleCount)
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console.log("Cellsize", cellSize)
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return qr.createDataURL(cellSize)
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}
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}
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