vue-qr-code-styling

JavaScript library for generating QR codes with a logo and styling.

• Support vue2

If you have issues / suggestions / notes / questions, please open an issue or contact me. Let's create a cool library together.

Examples

Installation

npm install vue-qr-code-styling

Project setup

yarn install

Compiles and hot-reloads for development

yarn serve

Compiles and minifies for production

yarn build

Lints and fixes files

yarn lint

Usage

<template>
  <div id="app">
    <div>
      <QrCode :size="size" :value="value" :logo="logo" />
    </div>
  </div>
</template>

<script>
import QrCode from 'vue-qr-code-styling'

export default {
  name: 'App',
  components: {
    QrCode,
  },
  data() {
    return {
      size: 200,
      value: 'https://i-fis.cn/',
        logo: '/logo.png',
    }
  },
}
</script>

<style>
#app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  margin-top: 60px;
}
</style>

API Documentation

QRCodeStyling instance

new QRCodeStyling(options) => QRCodeStyling

Param |Type |Description -------|------|------------ options|object|Init object

options structure

Property |Type |Default Value|Description -----------------------|-------------------------|-------------|----------------------------------------------------- width |number |300 |Size of canvas height |number |300 |Size of canvas type |string ('canvas' 'svg')|canvas |The type of the element that will be rendered data |string | |The date will be encoded to the QR code image |string | |The image will be copied to the center of the QR code margin |number |0 |Margin around canvas qrOptions |object | |Options will be passed to qrcode-generator lib imageOptions |object | |Specific image options, details see below dotsOptions |object | |Dots styling options cornersSquareOptions |object | |Square in the corners styling options cornersDotOptionsHelper|object | |Dots in the corners styling options backgroundOptions |object | |QR background styling options

options.qrOptions structure

Property |Type |Default Value --------------------|--------------------------------------------------|------------- typeNumber |number (0 - 40) |0 mode |string ('Numeric' 'Alphanumeric' 'Byte' 'Kanji')| errorCorrectionLevel|string ('L' 'M' 'Q' 'H') |'Q'

options.imageOptions structure

Property |Type |Default Value|Description ------------------|---------------------------------------|-------------|------------------------------------------------------------------------------ hideBackgroundDots|boolean |true |Hide all dots covered by the image imageSize |number |0.4 |Coefficient of the image size. Not recommended to use ove 0.5. Lower is better margin |number |0 |Margin of the image in px crossOrigin |string('anonymous' 'use-credentials')| |Set "anonymous" if you want to download QR code from other origins.

options.dotsOptions structure

Property|Type |Default Value|Description --------|------------------------------------------------------------------------------|-------------|------------------- color |string |'#000' |Color of QR dots gradient|object | |Gradient of QR dots type |string ('rounded' 'dots' 'classy' 'classy-rounded' 'square' 'extra-rounded')|'square' |Style of QR dots

options.backgroundOptions structure

Property|Type |Default Value --------|------|------------- color |string|'#fff' gradient|object|

options.cornersSquareOptions structure

Property|Type |Default Value|Description --------|-----------------------------------------|-------------|----------------- color |string | |Color of Corners Square gradient|object | |Gradient of Corners Square type |string ('dot' 'square' 'extra-rounded')| |Style of Corners Square

options.cornersDotOptions structure

Property|Type |Default Value|Description --------|-------------------------|-------------|----------------- color |string | |Color of Corners Dot gradient|object | |Gradient of Corners Dot type |string ('dot' 'square')| |Style of Corners Dot

Gradient structure

options.dotsOptions.gradient

options.backgroundOptions.gradient

options.cornersSquareOptions.gradient

options.cornersDotOptions.gradient

Property |Type |Default Value|Description ----------|----------------------------|-------------|--------------------------------------------------------- type |string ('linear' 'radial')|"linear" |Type of gradient spread rotation |number |0 |Rotation of gradient in radians (Math.PI === 180 degrees) colorStops|array of objects | |Gradient colors. Example [{ offset: 0, color: 'blue' }, { offset: 1, color: 'red' }]

Gradient colorStops structure

options.dotsOptions.gradient.colorStops[]

options.backgroundOptions.gradient.colorStops[]

options.cornersSquareOptions.gradient.colorStops[]

options.cornersDotOptions.gradient.colorStops[]

Property|Type |Default Value|Description --------|----------------|-------------|----------------------------------- offset |number (0 - 1)| |Position of color in gradient range color |string | |Color of stop in gradient range

QRCodeStyling methods

QRCodeStyling.append(container) => void

Param |Type |Description ---------|-----------|----------- container|DOM element|This container will be used for appending of the QR code

QRCodeStyling.getRawData(extension) => Promise<Blob>

Param |Type |Default Value|Description ---------|------------------------------------|-------------|------------ extension|string ('png' 'jpeg' 'webp' 'svg')|'png' |Blob type

QRCodeStyling.update(options) => void

Param |Type |Description -------|------|-------------------------------------- options|object|The same options as for initialization

QRCodeStyling.download(downloadOptions) => Promise<void>

Param |Type |Description ---------------|------|------------ downloadOptions|object|Options with extension and name of file (not required)

downloadOptions structure

Property |Type |Default Value|Description ---------|------------------------------------|-------------|----------------------------------------------------- name |string |'qr' |Name of the downloaded file extension|string ('png' 'jpeg' 'webp' 'svg')|'png' |File extension

Thanks for

• https://github.com/kozakdenys/qr-code-styling

License

MIT License. Copyright (c) 2023 Rosky