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| <template>
<div class="print-box">
<div class="print-bd" v-for="x in pages" :key="x" v-show="currentPage ? (currentPage == x) : true">
<div v-for="y in x < pages ? pageSize : lastPageSize" :key="y">
<qrcode :ref="'cvs'+((x-1)*15+y)" value="https://fengyuanchen.github.io/vue-qrcode" :data-name="'张某'+((x-1)*15+y)"></qrcode>
<!-- <qrcode value="https://fengyuanchen.github.io/vue-qrcode" :options="{ color: { dark: '#0275d8' } }"></qrcode> -->
<!-- <qrcode :ref="'cvs'+((x-1)*15+y)" value="https://yitong.com" tag="img" :name="'张某'+((x-1)*15+y)"></qrcode> -->
<div>张某 {{(x-1)*15+y}}</div>
</div>
</div>
<div class="print-btn">
<div>
<div class="handle-all">
<div class="btn" @click="printAll">全部打印</div>
<div class="btn" @click="zipAll">全部下载</div>
</div>
<div class="handle-page">
第<input type="number" maxlength="1000" minlength="1" v-model="currentPage" />页 <div class="btn" @click="print">打印</div><div class="btn" @click="zip">下载</div>
</div>
</div>
</div>
</div>
</template>
<script>
/* global*/
import { $http } from '../../assets/js/api';
import JSZip from 'jszip'
import { saveAs } from 'file-saver';
export default {
name: 'retrieve',
data() {
return {
total: 46,
pageSize: 15,
pages: 0,
lastPageSize: 0,
currentPage: 0
};
},
created() {
},
mounted () {
console.log($http)
console.log(JSZip)
this.lastPageSize = (this.total % this.pageSize) || this.pageSize
this.pages = parseInt(this.total / this.pageSize) + (this.lastPageSize ? 1 : 0)
},
methods: {
// 单页打包
zip() {
if(!this.currentPage) {
return
}
let pageSize = this.pageSize;
let first = (this.currentPage - 1)*this.pageSize;
if(this.pages === this.currentPage) {
pageSize = this.lastPageSize
}
var zip = new JSZip(); // 不支持win10 ie11 ，详见github
zip.file("Hello.txt", "Hello World\n");
var img = zip.folder("images");
for(let x in this.$refs) {
if(x.indexOf('cvs') > -1) {
const refIndex = parseInt(x.replace('cvs', ''))
if(refIndex > first && refIndex <= (first+pageSize)) {
const $el = this.$refs[x][0].$el
const { name } = $el.dataset
img.file(name + '.jpg', $el.toDataURL().split(',')[1], {base64: true});
}
}
}
// img.file("smile.gif", imgData, {base64: true});
zip.generateAsync({type:"blob"})
.then(function(content) {
// see FileSaver.js
saveAs(content, "学生二维码.zip");
});
},
// 全部打包
zipAll() {
console.log(this.$refs)
console.log(this.$refs['cvs1'][0])
console.log(this.$refs['cvs1'][0].$el)
var zip = new JSZip(); // 不支持win10 ie11 ，详见github
zip.file("Hello.txt", "Hello World\n");
var img = zip.folder("images");
for(let x in this.$refs) {
if(x.indexOf('cvs') > -1) {
const $el = this.$refs[x][0].$el
const { name } = $el.dataset
img.file(name + '.jpg', $el.toDataURL().split(',')[1], {base64: true});
}
}
// img.file("smile.gif", imgData, {base64: true});
zip.generateAsync({type:"blob"})
.then(function(content) {
// see FileSaver.js
saveAs(content, "学生二维码.zip");
});
},
// 全部打印
printAll() {
this.currentPage = 0
setTimeout(() => {
window.print()
}, 201)
},
// 单页打印
print() {
window.print()
}
}
};
</script>
<style scoped lang="scss">
.print-box {
height: auto;
position: relative;
padding-top: 12px;
padding-bottom: 72px;
background: #000;
line-height: 0;
}
.print-bd {
box-sizing: border-box;
padding: 10mm 15mm 20mm 15mm;
width: 210mm;
height: 297mm;
background-color: #fff;
margin: 0 auto;
> div {
width: 60mm;
text-align: center;
line-height: 1;
display: block;
float: left;
> img {
width: 80%;
}
> div {
line-height: 1;
font-size: 14px;
color: #666;
margin: 1mm 0 4mm;
}
}
}
.print-btn {
position: fixed;
bottom: 0;
left: 0;
width: 100%;
height: 60px;
background-color: #f8f8f8;
> div {
height: 100%;
width: 210mm;
margin: 0 auto;
display: flex;
flex-direction: row;
justify-content: space-between;
align-items: center;
}
.handle-all, .handle-page {
display: flex;
flex-direction: row;
align-items: center;
}
.btn {
cursor: pointer;
line-height: 1;
margin: 10px 5px;
border: 1px solid #ccc;
padding: 4px 8px;
transition: all .5s;
&:hover {
border-color: #c4261d;
color: #fff;
background-color: #c4261d;
}
}
}
@media print {
.print-btn {
display: none;
}
.print-box {
padding: 0;
}
}
</style>
|