qr-code-generator-vue3 v1.4.21
Vue3 QR Code Styling
JavaScript library for generating QR codes with a logo and styling.
this clone copy of https://qr-code-styling.com
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 qr-code-generator-vue3 --saveQR Code Scanner
If you are looking for QR code reader, see qrcode-reader-vue3 project
npm install --save qrcode-reader-vue3Usage
<template>
<div>
<QRCodeVue3
value="Simple QR code"
/>
<QRCodeVue3
:width="200"
:height="200"
value="https://scholtz.sk"
:qrOptions="{ typeNumber: 0, mode: 'Byte', errorCorrectionLevel: 'H' }"
:imageOptions="{ hideBackgroundDots: true, imageSize: 0.4, margin: 0 }"
:dotsOptions="{
type: 'dots',
color: '#26249a',
gradient: {
type: 'linear',
rotation: 0,
colorStops: [
{ offset: 0, color: '#26249a' },
{ offset: 1, color: '#26249a' },
],
},
}"
:backgroundOptions="{ color: '#ffffff' }"
:cornersSquareOptions="{ type: 'dot', color: '#000000' }"
:cornersDotOptions="{ type: undefined, color: '#000000' }"
fileExt="png"
:download="true"
myclass="my-qur"
imgclass="img-qr"
downloadButton="my-button"
:downloadOptions="{ name: 'vqr', extension: 'png' }"
/>
</div>
</template>
<script>
import QRCodeVue3 from "qrcode-vue3";
export default {
name: 'QRCodeVue3Example',
components: {
QRCodeVue3
},
}
</script>API Documentation
VQRCodeStyling instance
new VQRCodeStyling(options) => VQRCodeStyling
| 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 |
| download | boolean | false | To endable download button |
| myclass | string | '' | Image DIV class |
| imgclass | string | '' | Image class |
| downloadButton | string | '' | download button class |
| downloadOptions | object | download option name and extension | |
| value | 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 |
VQRCodeStyling methods
VQRCodeStyling.append(container) => void
| Param | Type | Description |
|---|---|---|
| container | DOM element | This container will be used for appending of the QR code |
VQRCodeStyling.update(options) => void
| Param | Type | Description |
|---|---|---|
| options | object | The same options as for initialization |
VQRCodeStyling.download(downloadOptions) => 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') | 'png' | File extension |
if any issue check
also you can buy me a coffee @ Patreon
License
MIT License. Copyright (c) 2021 Diadal Nig