vue3 quasar 读取pdf到页面上,可拖动缩放
时间: 2024-04-12 12:27:54 浏览: 101
你可以使用Quasar Framework和PDF.js库来实现在Vue 3中读取并在页面上显示PDF文件,并添加可拖动和缩放功能。下面是一个简单的步骤:
1. 安装Quasar Framework和PDF.js库:
```bash
npm install quasar
npm install pdfjs-dist
```
2. 在Vue组件中引入所需的库和样式:
```vue
<template>
<div>
<div ref="pdfContainer" class="pdf-container"></div>
</div>
</template>
<script>
import pdfjsLib from 'pdfjs-dist'
export default {
mounted() {
this.loadPDF()
},
methods: {
async loadPDF() {
const pdfUrl = 'path/to/your/pdf/file.pdf'
const container = this.$refs.pdfContainer
const loadingTask = pdfjsLib.getDocument(pdfUrl)
const pdf = await loadingTask.promise
const page = await pdf.getPage(1)
const viewport = page.getViewport({ scale: 1 })
const canvas = document.createElement('canvas')
canvas.className = 'pdf-canvas'
container.appendChild(canvas)
const context = canvas.getContext('2d')
canvas.width = viewport.width
canvas.height = viewport.height
const renderContext = {
canvasContext: context,
viewport: viewport
}
await page.render(renderContext)
}
}
}
</script>
<style>
.pdf-container {
position: relative;
}
.pdf-canvas {
cursor: move;
}
</style>
```
3. 然后,在需要显示PDF的地方使用该组件:
```vue
<template>
<div>
<pdf-viewer></pdf-viewer>
</div>
</template>
<script>
import PdfViewer from './PdfViewer.vue'
export default {
components: {
PdfViewer
}
}
</script>
```
以上代码将在页面上显示PDF,并且允许你拖动和缩放。你可以根据需要自定义样式和添加其他功能。注意,这只是一个基本示例,你可能需要根据实际需求进行修改和完善。