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<template> |
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<PageWrapper title="二维码组件使用示例"> |
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<div class="flex flex-wrap"> |
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<CollapseContainer |
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title="基础示例" |
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:canExpan="true" |
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class="text-center mb-6 qrcode-demo-item" |
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> |
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<QrCode :value="qrCodeUrl" /> |
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</CollapseContainer> |
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<CollapseContainer title="渲染成img标签示例" class="text-center mb-6 qrcode-demo-item"> |
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<QrCode :value="qrCodeUrl" tag="img" /> |
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</CollapseContainer> |
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<CollapseContainer title="配置样式示例" class="text-center mb-6 qrcode-demo-item"> |
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<QrCode |
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:value="qrCodeUrl" |
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:options="{ |
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color: { dark: '#55D187' }, |
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}" |
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/> |
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</CollapseContainer> |
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<CollapseContainer title="本地logo示例" class="text-center mb-6 qrcode-demo-item"> |
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<QrCode :value="qrCodeUrl" :logo="LogoImg" /> |
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</CollapseContainer> |
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<CollapseContainer title="在线logo示例" class="text-center mb-6 qrcode-demo-item"> |
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<QrCode |
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:value="qrCodeUrl" |
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logo="https://vebn.oss-cn-beijing.aliyuncs.com/vben/logo.png" |
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:options="{ |
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color: { dark: '#55D187' }, |
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}" |
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/> |
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</CollapseContainer> |
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<CollapseContainer title="logo配置示例" class="text-center mb-6 qrcode-demo-item"> |
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<QrCode |
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:value="qrCodeUrl" |
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:logo="{ |
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src: 'https://vebn.oss-cn-beijing.aliyuncs.com/vben/logo.png', |
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logoSize: 0.2, |
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borderSize: 0.05, |
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borderRadius: 50, |
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bgColor: 'blue', |
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}" |
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/> |
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</CollapseContainer> |
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<CollapseContainer title="下载示例" class="text-center qrcode-demo-item"> |
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<QrCode :value="qrCodeUrl" ref="qrRef" :logo="LogoImg" /> |
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<a-button class="mb-2" type="primary" @click="download"> 下载 </a-button> |
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<div class="msg"> (在线logo会导致图片跨域,需要下载图片需要自行解决跨域问题) </div> |
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</CollapseContainer> |
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<CollapseContainer title="配置大小示例" class="text-center qrcode-demo-item"> |
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<QrCode :value="qrCodeUrl" :width="300" /> |
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</CollapseContainer> |
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<CollapseContainer title="扩展绘制示例" class="text-center qrcode-demo-item"> |
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<QrCode |
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:value="qrCodeUrl" |
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:width="200" |
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:options="{ margin: 5 }" |
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ref="qrDiyRef" |
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:logo="LogoImg" |
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@done="onQrcodeDone" |
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/> |
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<a-button class="mb-2" type="primary" @click="downloadDiy"> 下载 </a-button> |
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<div class="msg"> 要进行扩展绘制则不能将tag设为img </div> |
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</CollapseContainer> |
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</div> |
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</PageWrapper> |
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</template> |
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<script lang="ts"> |
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import { defineComponent, ref, unref } from 'vue'; |
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import { QrCode, QrCodeActionType } from '/@/components/Qrcode/index'; |
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import LogoImg from '/@/assets/images/logo.png'; |
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import { CollapseContainer } from '/@/components/Container/index'; |
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import { PageWrapper } from '/@/components/Page'; |
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const qrCodeUrl = 'https://www.vvbin.cn'; |
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export default defineComponent({ |
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components: { CollapseContainer, QrCode, PageWrapper }, |
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setup() { |
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const qrRef = ref<Nullable<QrCodeActionType>>(null); |
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const qrDiyRef = ref<Nullable<QrCodeActionType>>(null); |
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function download() { |
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const qrEl = unref(qrRef); |
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if (!qrEl) return; |
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qrEl.download('文件名'); |
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} |
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function downloadDiy() { |
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const qrEl = unref(qrDiyRef); |
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if (!qrEl) return; |
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qrEl.download('Qrcode'); |
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} |
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function onQrcodeDone({ ctx }) { |
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if (ctx instanceof CanvasRenderingContext2D) { |
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// 额外绘制 |
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ctx.fillStyle = 'black'; |
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ctx.font = '16px "微软雅黑"'; |
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ctx.textBaseline = 'bottom'; |
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ctx.textAlign = 'center'; |
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ctx.fillText('你帅你先扫', 100, 195, 200); |
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} |
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} |
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return { |
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onQrcodeDone, |
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qrCodeUrl, |
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LogoImg, |
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download, |
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downloadDiy, |
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qrRef, |
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qrDiyRef, |
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}; |
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}, |
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}); |
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</script> |
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<style scoped> |
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.qrcode-demo-item { |
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width: 30%; |
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margin-right: 1%; |
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} |
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</style> |