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<!-- 裁剪图片 -->

<template>

<div class="wrapper">

<div class="model" v-show="model" @click="model = false">

<div class="model-show">

<img :src="modelSrc" alt="">

</div>

</div>

<div class="content">

<div class="show-info">

<h2>自动生成截图框 固定比例 w : h => 4 : 3</h2>

<div class="test">

<vueCropper ref="cropper2" :img="example2.img " :outputSize="example2.size" :outputType="example2.outputType"

:info="example2.info" :canScale="example2.canScale" :autoCrop="example2.autoCrop"

:autoCropWidth="example2.autoCropWidth" :autoCropHeight="example2.autoCropHeight" :fixed="example2.fixed"

:fixedNumber="example2.fixedNumber" :enlarge="4"></vueCropper>

</div>

<label class="btn" for="upload2">上传</label>

<input type="file" id="upload2" style="position:absolute; clip:rect(0 0 0 0);"

accept="image/png, image/jpeg, image/gif, image/jpg" @change="uploadImg($event,2)">

<button @click="finish2()" class="btn">裁剪</button>

</div>

</div>

</div>

</template>

<script>

import { VueCropper } from 'vue-cropper'

import * as OSS from 'ali-oss';

export default {

components: {

VueCropper,

},

data() {

return {

model: false,

modelSrc: '',

crap: false,

previews: {},

form: {

head: ''

},

example2: {

//img的路径自行修改

img: '$oss.url + \'/\' + form.head ',

info: true,

size: 1,

outputType: 'jpeg',

canScale: true,

autoCrop: true,

// 只有自动截图开启 宽度高度才生效

autoCropWidth: 300,

autoCropHeight: 250,

fixed: true,

// 真实的输出宽高

infoTrue: true,

fixedNumber: [4, 3]

},

downImg: '#'

}

},

methods: {

//点击裁剪，这一步是可以拿到处理后的地址

finish2() {

this.$refs.cropper2.getCropData((data) => {

this.modelSrc = data

this.model = false;

//裁剪后的图片显示

this.example2.img = this.modelSrc;

// this.toBlob(data)

// console.log(data)

// console.log(this.toBlob(data))

//阿里云处理图片，项目的接口，这里可以不用，上面的地址打印即为base64的地址

this.$api.admin.url(data => {

new OSS.Wrapper({

region: "oss-cn-hangzhou",

accessKeyId: data.accessKeyId,

accessKeySecret: data.accessKeySecret,

stsToken: data.securityToken,

// bucket: 'mybg'c

bucket: 'zhiyuan-hz'

})

.put(data.key, this.toBlob(this.example2.img))

.then(data => {

console.log(data.url)

})

.catch(function (err) {

console.error("error: %j", err);

});

});

})

},

uploadImg(e, num) {

//上传图片

this.example2.img = ''

var file = e.target.files[0]

if (!/\.(gif|jpg|jpeg|png|bmp|GIF|JPG|PNG)$/.test(e.target.value)) {

alert('图片类型必须是.gif,jpeg,jpg,png,bmp中的一种')

return false

}

var reader = new FileReader()

reader.onload = (e) => {

let data

data = e.target.result

if (typeof e.target.result === 'object') {

// 把Array Buffer转化为blob 如果是base64不需要

data = window.URL.createObjectURL(new Blob([e.target.result]))

} else {

data = e.target.result

}

if (num === 1) {

this.option.img = data

} else if (num === 2) {

this.example2.img = data

}

}

// 转化为base64

// reader.readAsDataURL(file)

// 转化为blobcs

reader.readAsArrayBuffer(file)

},

// base64转blob

toBlob(ndata) {

//ndata为base64格式地址

console.log(ndata)

let arr = ndata.split(','),

mime = arr[0].match(/:(.*?);/)[1],

bstr = atob(arr[1]),

n = bstr.length,

u8arr = new Uint8Array(n);

while (n--) {

u8arr[n] = bstr.charCodeAt(n);

}

return new Blob([u8arr], {

type: mime

})

}

},

}

</script>

<style>

* {

margin: 0;

padding: 0;

}

.content {

margin: auto;

max-width: 585px;

margin-bottom: 100px;

}

.test-button {

display: flex;

flex-wrap: wrap;

}

.btn {

display: inline-block;

line-height: 1;

white-space: nowrap;

cursor: pointer;

background: #fff;

border: 1px solid #c0ccda;

color: #1f2d3d;

text-align: center;

box-sizing: border-box;

outline: none;

margin: 20px 10px 0px 0px;

padding: 9px 15px;

font-size: 14px;

border-radius: 4px;

color: #fff;

background-color: #50bfff;

border-color: #50bfff;

transition: all .2s ease;

text-decoration: none;

user-select: none;

}

.des {

line-height: 30px;

}

code.language-html {

padding: 10px 20px;

margin: 10px 0px;

display: block;

background-color: #333;

color: #fff;

overflow-x: auto;

font-family: Consolas, Monaco, Droid, Sans, Mono, Source, Code, Pro, Menlo, Lucida, Sans, Type, Writer, Ubuntu, Mono;

border-radius: 5px;

white-space: pre;

}

.show-info {

margin-bottom: 50px;

}

.show-info h2 {

line-height: 50px;

}

/*.title, .title:hover, .title-focus, .title:visited {

color: black;

}*/

.title {

display: block;

text-decoration: none;

text-align: center;

line-height: 1.5;

margin: 20px 0px;

background-image: -webkit-linear-gradient(left, #3498db, #f47920 10%, #d71345 20%, #f7acbc 30%, #ffd400 40%, #3498db 50%, #f47920 60%, #d71345 70%, #f7acbc 80%, #ffd400 90%, #3498db);

color: transparent;

-webkit-background-clip: text;

background-size: 200% 100%;

animation: slide 5s infinite linear;

font-size: 40px;

}

.test {

height: 285px;

}

.model {

position: fixed;

z-index: 10;

width: 100vw;

height: 100vh;

overflow: auto;

top: 0;

left: 0;

background: rgba(0, 0, 0, 0.8);

}

.model-show {

display: flex;

justify-content: center;

align-items: center;

width: 100vw;

height: 100vh;

}

.model img {

display: block;

margin: auto;

max-width: 80%;

user-select: none;

background-position: 0px 0px, 10px 10px;

background-size: 20px 20px;

background-image: linear-gradient(45deg, #eee 25%, transparent 25%, transparent 75%, #eee 75%, #eee 100%), linear-gradient(45deg, #eee 25%, white 25%, white 75%, #eee 75%, #eee 100%);

}

.c-item {

display: block;

padding: 10px 0;

user-select: none;

}

@keyframes slide {

0% {

background-position: 0 0;

}

100% {

background-position: -100% 0;

}

}

@media screen and (max-width: 1000px) {

.content {

max-width: 90%;

margin: auto;

}

.test {

height: 400px;

}

}

</style>