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+<template>
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+ <div class="cropper-content">
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+ <div class="cropper-box">
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+ <div class="cropper">
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+ <vue-cropper
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+ ref="cropper"
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+ :img="option.img"
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+ :outputSize="option.outputSize"
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+ :outputType="option.outputType"
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+ :info="option.info"
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+ :canScale="option.canScale"
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+ :autoCrop="option.autoCrop"
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+ :autoCropWidth="option.autoCropWidth"
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+ :autoCropHeight="option.autoCropHeight"
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+ :fixed="option.fixed"
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+ :fixedNumber="option.fixedNumber"
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+ :full="option.full"
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+ :fixedBox="option.fixedBox"
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+ :canMove="option.canMove"
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+ :canMoveBox="option.canMoveBox"
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+ :original="option.original"
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+ :centerBox="option.centerBox"
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+ :height="option.height"
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+ :infoTrue="option.infoTrue"
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+ :maxImgSize="option.maxImgSize"
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+ :enlarge="option.enlarge"
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+ :mode="option.mode"
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+ @realTime="realTime"
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+ @imgLoad="imgLoad"
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+ >
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+ </vue-cropper>
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+ </div>
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+ <!--底部操作工具按钮-->
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+ <div class="footer-btn">
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+ <div class="scope-btn">
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+ <input
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+ type="file"
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+ id="uploads"
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+ style="position: absolute; clip: rect(0 0 0 0)"
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+ accept="image/png, image/jpeg, image/gif, image/jpg"
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+ @change="selectImg($event)"
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+ />
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+ <el-button size="mini" type="danger" plain icon="el-icon-zoom-in" @click="changeScale(1)">放大</el-button>
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+ <el-button size="mini" type="danger" plain icon="el-icon-zoom-out" @click="changeScale(-1)">缩小</el-button>
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+ <el-button size="mini" type="danger" plain @click="rotateLeft">↺ 左旋转</el-button>
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+ <el-button size="mini" type="danger" plain @click="rotateRight">↻ 右旋转</el-button>
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+ </div>
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+ </div>
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+ </div>
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+ <!--预览效果图-->
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+ <div class="show-preview">
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+ <div class="preview">
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+ <img :src="previews.url" :style="previews.img" />
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+ </div>
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+ <div class="upload-btn">
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+ <label class="btn" for="uploads">选择图片</label>
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+ <el-button size="mini" type="success" @click="uploadImg()">确认上传</el-button>
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+ </div>
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+ </div>
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+ </div>
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+</template>
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+
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+<script>
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+import { VueCropper } from 'vue-cropper';
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+// import { updateAvatar } from ''; //这里为文件上传的接口换成自己的文件
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+import { fileUpload } from '@/api/setting';
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+export default {
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+ name: 'CropperImage',
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+ components: {
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+ VueCropper,
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+ },
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+ props: ['Name'],
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+ data() {
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+ return {
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+ name: this.Name,
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+ resImg: '',
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+ previews: {},
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+ option: {
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+ img: this.Name, //裁剪图片的地址
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+ outputSize: 1, //裁剪生成图片的质量(可选0.1 - 1)
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+ outputType: 'png', //裁剪生成图片的格式（jpeg || png || webp）
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+ info: true, //图片大小信息
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+ canScale: true, //图片是否允许滚轮缩放
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+ autoCrop: true, //是否默认生成截图框
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+ autoCropWidth: 200, //默认生成截图框宽度
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+ autoCropHeight: 200, //默认生成截图框高度
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+ fixed: false, //是否开启截图框宽高固定比例
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+ fixedNumber: [1.53, 1], //截图框的宽高比例
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+ full: false, //false按原比例裁切图片，不失真
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+ fixedBox: false, //固定截图框大小，不允许改变
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+ canMove: true, //上传图片是否可以移动
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+ canMoveBox: true, //截图框能否拖动
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+ original: false, //上传图片按照原始比例渲染
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+ centerBox: true, //截图框是否被限制在图片里面
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+ height: false, //是否按照设备的dpr 输出等比例图片
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+ infoTrue: false, //true为展示真实输出图片宽高，false展示看到的截图框宽高
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+ maxImgSize: 3000, //限制图片最大宽度和高度
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+ enlarge: 1, //图片根据截图框输出比例倍数
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+ mode: '300px 300px', //图片默认渲染方式
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+ },
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+ };
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+ },
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+ methods: {
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+ //初始化函数
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+ imgLoad(msg) {
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+ console.log('工具初始化函数=====' + msg);
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+ },
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+ //图片缩放
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+ changeScale(num) {
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+ num = num || 1;
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+ this.$refs.cropper.changeScale(num);
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+ },
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+ //向左旋转
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+ rotateLeft() {
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+ this.$refs.cropper.rotateLeft();
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+ },
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+ //向右旋转
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+ rotateRight() {
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+ this.$refs.cropper.rotateRight();
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+ },
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+ // //实时预览函数
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+ realTime(data) {
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+ let that = this;
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+ that.previews = data;
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+ this.$refs.cropper.getCropBlob((data) => {
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+ this.blobToDataURI(data, function (res) {
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+ that.previewImg = res;
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+ });
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+ });
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+ },
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+ blobToDataURI(blob, callback) {
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+ var reader = new FileReader();
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+ reader.readAsDataURL(blob);
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+ reader.onload = function (e) {
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+ callback(e.target.result);
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+ };
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+ },
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+ //选择图片
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+ selectImg(e) {
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+ let file = e.target.files[0];
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+ if (!/\.(jpg|jpeg|png|JPG|PNG)$/.test(e.target.value)) {
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+ this.$message({
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+ message: '图片类型要求：jpeg、jpg、png',
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+ type: 'error',
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+ });
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+ return false;
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+ }
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+ //转化为blob
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+ let reader = new FileReader();
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+ reader.onload = (e) => {
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+ let data;
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+ if (typeof e.target.result === 'object') {
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+ data = window.URL.createObjectURL(new Blob([e.target.result]));
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+ } else {
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+ data = e.target.result;
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+ }
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+ this.option.img = data;
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+ };
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+ //转化为base64
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+ reader.readAsDataURL(file);
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+ },
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+
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+ base64ImgtoFile(dataurl, filename = 'file') {
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+ //将base64格式分割：['data:image/png;base64','XXXX']
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+ const arr = dataurl.split(',');
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+ // .*？ 表示匹配任意字符到下一个符合条件的字符 刚好匹配到：
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+ // image/png
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+ const mime = arr[0].match(/:(.*?);/)[1]; //image/png
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+ //[image,png] 获取图片类型后缀
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+ const suffix = mime.split('/')[1]; //png
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+ const bstr = atob(arr[1]); //atob() 方法用于解码使用 base-64 编码的字符串
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+ let n = bstr.length;
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+ const u8arr = new Uint8Array(n);
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+ while (n--) {
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+ u8arr[n] = bstr.charCodeAt(n);
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+ }
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+ return new File([u8arr], `${filename}.${suffix}`, {
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+ type: mime,
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+ });
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+ },
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+
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+ uploadFile(file) {
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+ const formData = new FormData();
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+ formData.append('file', file);
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+ fileUpload(formData).then((res) => {
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+ console.log(res);
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+ if (res.status == 200) {
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+ this.$emit('uploadImgSuccess', res.data);
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+ } else {
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+ this.$message({
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+ message: '上传失败',
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+ type: 'error',
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+ duration: 1000,
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+ });
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+ }
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+ });
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+ },
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+ //上传图片
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+ uploadImg() {
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+ this.$refs.cropper.getCropData((data) => {
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+ this.resImg = this.base64ImgtoFile(data);
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+ this.uploadFile(this.resImg);
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+ });
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+ },
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+ },
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+};
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+</script>
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+
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+<style scoped lang="scss">
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+.btn {
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+ outline: none;
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+ display: inline-block;
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+ line-height: 1;
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+ white-space: nowrap;
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+ cursor: pointer;
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+ -webkit-appearance: none;
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+ text-align: center;
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+ -webkit-box-sizing: border-box;
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+ box-sizing: border-box;
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+ outline: 0;
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+ -webkit-transition: 0.1s;
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+ transition: 0.1s;
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+ font-weight: 500;
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+ padding: 8px 15px;
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+ font-size: 12px;
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+ border-radius: 3px;
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+ color: #fff;
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+ background-color: #409eff;
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+ border-color: #409eff;
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+ margin-right: 10px;
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+}
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+.cropper-content {
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+ display: flex;
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+ display: -webkit-flex;
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+ justify-content: flex-end;
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+ .cropper-box {
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+ flex: 1;
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+ width: 100%;
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+ .cropper {
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+ width: auto;
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+ height: 300px;
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+ }
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+ }
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+
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+ .show-preview {
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+ flex: 1;
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+ display: flex;
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+ flex-direction: column;
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+ justify-content: flex-start;
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+ align-items: center;
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+ .preview {
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+ overflow: hidden;
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+ height: 200px;
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+ width: 200px;
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+ background: #cccccc;
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+ transform: scale(0.8);
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+ border-radius: 50%;
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+ }
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+ }
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+}
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+.footer-btn {
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+ margin-top: 30px;
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+ display: flex;
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+ display: -webkit-flex;
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+ justify-content: space-around;
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+ .scope-btn {
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+ display: flex;
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+ display: -webkit-flex;
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+ justify-content: space-between;
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+ padding-right: 10px;
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+ }
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+ .upload-btn {
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+ flex: 1;
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+ -webkit-flex: 1;
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+ display: flex;
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+ display: -webkit-flex;
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+ justify-content: center;
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+ }
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+}
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+</style>
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evoxwht