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vue-cropper-swx

v0.0.3

Published

A simple Vue picture clipping plugin

Downloads

3

Readme

vue-cropper-swx

一个优雅的图片裁剪插件

[ 查看演示 Demo ]
[ README_english ]
[ 更新日志 ]

以上都是根据vue-cropper组件进行二次开发的,主要包含填充、亮度调节等功能

一、安装使用

1. 安装

Vue 3 组件内引入

npm install vue-cropper-swx
import 'vue-cropper-swx/dist/index.css'
import { VueCropper }  from "vue-cropper-swx";

Vue3 全局引入

import VueCropper from 'vue-cropper-swx'; 
import 'vue-cropper-swx/dist/index.css'

const app = createApp(App)
app.use(VueCropper)
app.mount('#app')

Vue3 CDN 方式引入

<style type="text/css" src="https://cdn.jsdelivr.net/npm/[email protected]/dist/index.css"></style> 
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/vue.global.js"></script>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/vue-cropper-swx.umd.js"></script>
const app = Vue.createApp({...});
app.component('vue-cropper-swx', window['vue-cropper-swx'].VueCropper);

3. 代码中使用

重要! 需要关掉本地的 mock 服务, 不然图片转化会报错 重要! 需要使用外层容器包裹并设置宽高

<vueCropper
  ref="cropper"
  :img="option.img"
  :outputSize="option.size"
  :outputType="option.outputType"
></vueCropper>

二、文档

1. props

目前还不知道什么原因项目里面开启 mock 会导致 file 报错,建议使用时关掉 mock

名称 | 功能 | 默认值 | 可选值 --- | --- | --- | --- img | 裁剪图片的地址 | 空 | url 地址, base64, blob outputSize | 裁剪生成图片的质量 | 1 | 0.1 ~ 1 outputType | 裁剪生成图片的格式 | jpg (jpg 需要传入jpeg) | jpeg, png, webp info | 裁剪框的大小信息 | true | true, false canScale | 图片是否允许滚轮缩放 | true | true, false autoCrop | 是否默认生成截图框 | false | true, false autoCropWidth | 默认生成截图框宽度 | 容器的 80% | 0 ~ max autoCropHeight | 默认生成截图框高度 | 容器的 80% | 0 ~ max fixed | 是否开启截图框宽高固定比例 | false | true, false fixedNumber | 截图框的宽高比例 | [1, 1] | [ 宽度 , 高度 ] full | 是否输出原图比例的截图 | false | true, false fixedBox | 固定截图框大小 | 不允许改变 | false | true, false canMove | 上传图片是否可以移动 | true | true, false canMoveBox | 截图框能否拖动 | true | true, false original | 上传图片按照原始比例渲染 | false | true, false centerBox | 截图框是否被限制在图片里面 | false | true, false high | 是否按照设备的dpr 输出等比例图片 | true | true, false infoTrue | true 为展示真实输出图片宽高 false 展示看到的截图框宽高 | false | true, false maxImgSize | 限制图片最大宽度和高度 | 2000 | 0 ~ max enlarge | 图片根据截图框输出比例倍数 | 1 | 0 ~ max(建议不要太大不然会卡死的呢) mode | 图片默认渲染方式 | contain | contain , cover, 100px, 100% auto

2. 可用回调方法

  • @realTime 实时预览事件
  • @imgMoving 图片移动回调函数
  • @cropMoving 截图框移动回调函数
  • @imgLoad 图片加载的回调, 返回结果 success, error

@realTime 实时预览事件

realTime(data) {
  var previews = data
  var h = 0.5
  var w = 0.2

  this.previewStyle1 = {
    width: previews.w + "px",
    height: previews.h + "px",
    overflow: "hidden",
    margin: "0",
    zoom: h
  }

  this.previewStyle2 = {
    width: previews.w + "px",
    height: previews.h + "px",
    overflow: "hidden",
    margin: "0",
    zoom: w
  }

  // 固定为 100 宽度
  this.previewStyle3 = {
    width: previews.w + "px",
    height: previews.h + "px",
    overflow: "hidden",
    margin: "0",
    zoom: 100 / preview.w
  }

  // 固定为 100 高度
  this.previewStyle4 = {
    width: previews.w + "px",
    height: previews.h + "px",
    overflow: "hidden",
    margin: "0",
    zoom: 100 / preview.h
  }
  this.previews = data
}
<div class="show-preview" :style="{'width': previews.w + 'px', 'height': previews.h + 'px',  'overflow': 'hidden',
    'margin': '5px'}">
  <div :style="previews.div">
    <img :src="option.img" :style="previews.img">
  </div>
</div>
<p>中等大小</p>
<div :style="previewStyle1"> 
  <div :style="previews.div">
    <img :src="previews.url" :style="previews.img">
  </div>
</div>

<p>迷你大小</p>
<div :style="previewStyle2"> 
  <div :style="previews.div">
    <img :src="previews.url" :style="previews.img">
  </div>
</div>

@imgMoving 图片移动回调函数

返回的参数内容

{
   moving: true, // moving 是否在移动
   axis: {
     x1: 1, // 左上角
     x2: 1,// 右上角
     y1: 1,// 左下角
     y2: 1 // 右下角
   }
 }

@cropMoving 截图框移动回调函数

返回的参数内容

{
   moving: true, // moving 是否在移动
   axis: {
     x1: 1, // 左上角
     x2: 1,// 右上角
     y1: 1,// 左下角
     y2: 1 // 右下角
   }
 }

2. 内置方法 和 属性

通过 this.$refs.cropper 调用

属性

属性 | 说明 --- | --- this.$refs.cropper.cropW | 截图框宽度 this.$refs.cropper.cropH | 截图框高度

方法

方法 | 说明 --- | --- this.$refs.cropper.startCrop() | 开始截图 this.$refs.cropper.stopCrop() | 停止截图 this.$refs.cropper.clearCrop() | 清除截图 this.$refs.cropper.changeScale() | 修改图片大小 正数为变大 负数变小 this.$refs.cropper.getImgAxis() | 获取图片基于容器的坐标点 this.$refs.cropper.getCropAxis() | 获取截图框基于容器的坐标点 this.$refs.cropper.goAutoCrop | 自动生成截图框函数 this.$refs.cropper.rotateRight() | 向右边旋转90度 this.$refs.cropper.rotateLeft() | 向左边旋转90度

获取截图内容

获取截图的 base64 数据

this.$refs.cropper.getCropData(data => {
  // do something
  console.log(data)  
})

获取截图的 blob 数据

this.$refs.cropper.getCropBlob(data => {
  // do something
  console.log(data)  
})

三、相关文章参考