<!--
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* @Descripttion: 图像剪裁组件演示文件
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* @version: 1.0
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* @Author: sakuya
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* @Date: 2021年7月24日20:58:51
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* @LastEditors:
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* @LastEditTime:
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-->
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<template>
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<el-main>
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<el-row :gutter="15">
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<el-col :lg="14">
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<el-card shadow="never">
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<sc-cropper :src="cropperImg" :compress="compress" :aspectRatio="aspectRatio" ref="cropper"></sc-cropper>
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</el-card>
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<el-card shadow="never" header="参数和方法">
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<el-form label-width="100px">
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<el-form-item label="aspectRatio">
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<el-select v-model="aspectRatio" placeholder="请选择">
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<el-option label="自由" :value="0"></el-option>
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<el-option label="1:1" :value="1/1"></el-option>
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<el-option label="4:3" :value="4/3"></el-option>
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<el-option label="16:9" :value="16/9"></el-option>
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</el-select>
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<div class="el-form-item-msg">固定选区或者不固定</div>
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</el-form-item>
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<el-form-item label="compress">
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<el-select v-model="compress" placeholder="请选择">
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<el-option label="0.1" :value="0.1"></el-option>
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<el-option label="0.5" :value="0.5"></el-option>
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<el-option label="1" :value="1"></el-option>
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</el-select>
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<div class="el-form-item-msg">图像压缩率，值为：0.1-1</div>
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</el-form-item>
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</el-form>
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<el-button type="primary" plain @click="getBase64">Base64</el-button>
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<el-button type="primary" plain @click="getBlob">Blob</el-button>
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<el-button type="primary" plain @click="getFile">File</el-button>
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</el-card>
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<el-card shadow="never" header="方法结果">
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<img :src="imgData" />
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</el-card>
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</el-col>
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<el-col :lg="10">
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<el-card shadow="never" header="已内置剪裁的上传组件">
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<el-alert title="设置cropper就可以开启上传前剪裁, 并已封装compress和aspectRatio, 打开F12查看网络请求" type="success" style="margin-bottom:20px;"></el-alert>
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<sc-upload v-model="uploadImg" title="开启剪裁" :cropper="true" :compress="1" :aspectRatio="1/1"></sc-upload>
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</el-card>
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</el-col>
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</el-row>
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</el-main>
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</template>
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<script>
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import scCropper from '@/components/scCropper'
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export default {
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name: 'cropper',
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components: {
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scCropper
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},
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data() {
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return {
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cropperImg: 'img/avatar.jpg',
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compress: 0.5,
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aspectRatio: 0,
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uploadImg: '',
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imgData: ''
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}
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},
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methods: {
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getBase64(){
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this.$refs.cropper.getCropData(data=>{
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this.imgData = data
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})
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},
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getBlob(){
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this.$refs.cropper.getCropBlob(blob=>{
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this.imgData = URL.createObjectURL(blob)
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})
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},
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getFile(){
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this.$refs.cropper.getCropFile(file=>{
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let aTag = document.createElement('a')
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aTag.download = file.name;
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aTag.href = URL.createObjectURL(file)
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aTag.click()
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}, 'fileName.jpg', 'image/jpeg')
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}
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}
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}
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</script>
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<style>
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</style>
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