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wepy-image-cropper

v1.1.1

Published

"Wepy 图片裁剪工具"

Downloads

3

Readme

基于 image-cropper 开发的wepy版本微信小程序截图插件

说明

此插件基于image-cropper微信原生插件开发, 可能会增加部分功能,具体请查阅以下的插件文档

原生插件传送门: 微信原生插件 image-cropper 地址

使用到该插件的案例: 同游分账小程序

一款高性能的小程序图片裁剪插件,支持旋转、设置尺寸

1.功能强大,请看下面demo。
2.性能超高超流畅,大图毫无卡顿感。
3.可以设置导出图片尺寸。
4.组件化,使用非常简单。
5.点击中间窗口实时查看裁剪结果。

使用

安装组件

npm install wepy-image-cropper --save

引入组件

<template>
  <view wx:if="{{show_cropper}}" style="position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: black;">
      <wepy-image-cropper id="image-cropper" :limit_move="limit_move" :disable_rotate="disable_rotate" :disable_ratio="disable_ratio" :borderColor="borderColor" :width="width" :height="height" @load.user="cropperload" @imageload.user="loadimage"></wepy-image-cropper>
      <view style="height: 100rpx; box-shadow:0px -2rpx 0px 0px white; display: flex; flex-direction: row; align-items: center; justify-content: space-around; position: absolute; width: 100%; bottom: 0; z-index: 9999;">
        <view @tap="hide_cropper" style="font-size: 36rpx; color: white;">取消</view>
        <view @tap="finish_cut" style="font-size: 36rpx; color: white;">完成</view>
      </view>
    </view>
</template>

<script>
  import wepy from 'wepy'
  import WepyImageCropper from 'wepy-image-cropper'

  export default class Test extends wepy.page {
    config = {
      navigationBarTitleText: '',
    }
    components = {
      'wepy-image-cropper': WepyImageCropper
    }

    mixins = []

	cropper = null 
    data = {
     	src: '',
	    width: 250,//宽度
	    height: 250,//高度
	    limit_move: true,
	    disable_rotate: true,
	    borderColor: 'white',
	    disable_ratio: true,
	    show_cropper: true,
    }
    onLoad(options) {
    }
    onReady() {
      //开始裁剪
      this.src = 'https://raw.githubusercontent.com/1977474741/image-cropper/dev/image/code.jpg'
      wx.showLoading({
        title: '加载中'
      })
    }

    computed = {
    }

    methods = {
          cropperload(e) {
            console.log("cropper初始化完成:" + e);
            this.cropper = e.cropper
            this.cropper.$wxpage.imgReset()
            this.$apply()
          },
          loadimage(e){
            console.log("图片加载完成",e);
          },
          // 上传收款码
          upload(type) {
            let that = this
            this.type = type
            this.cropper.$wxpage.setWidth(this.width)
            this.cropper.$wxpage.setHeight(this.height)
            this.cropper.$wxpage.imgReset()
            this.cropper.$wxpage.setCutCenter();
    
            wx.chooseImage({
              count: 1,
              sizeType: ['original', 'compressed'],
              sourceType: ['album', 'camera'],
              success: function success(res) {
                var tempFilePaths = res.tempFilePaths[0];
                that.cropper.$wxpage.pushImg(tempFilePaths);
                that.show_cropper = true;
                that.$apply();
                wx.showLoading({
                  title: '加载中...'
                });
              }
            });
          },
          async finish_cut() {
            this.cropper.$wxpage.getImg(async (e) => {
              try {
                // 获取选择的图片
                let image = e.url
    
               	
              } catch (err) {
                console.log(err)
                wepy.showModal({
                  title: '提示',
                  content: '服务器错误,请联系管理员'
                })
              }
    
              this.show_cropper = false
              this.$apply()
            })
          },
        
        }

    events = {
    }
  }
</script>

参数说明(高亮属性表示对于上个版本有修改,请注意)

| 属性 | 类型 | 缺省值 | 取值 | 描述 | 必填 | | ------------- |:------:|:------:|:-----:|:-----:|:-----:| | imgSrc | String | 无 |无限制|图片地址(如果是网络图片需配置安全域名)|否| | borderColor | String | 'white' |无限制| 裁剪框的颜色 |否| | disable_rotate| Boolean| false |true/false|禁止用户旋转(为false时建议同时设置limit_move为false)|否| | limit_move | Boolean| false |true/false|限制图片移动范围(裁剪框始终在图片内)(为true时建议同时设置disable_rotate为true)|否| | width | Number | 200 |超过屏幕宽度自动转为屏幕宽度|裁剪框宽度|否| | height | Number | 200 |超过屏幕高度自动转为屏幕高度|裁剪框高度|否| | max_width | Number | 300 |裁剪框最大宽度|裁剪框最大宽度|否| | max_height | Number | 300 |裁剪框最大高度|裁剪框最大高度|否| | min_width | Number | 100 |裁剪框最小宽度|裁剪框最小宽度|否| | min_height | Number | 100 |裁剪框最小高度|裁剪框最小高度|否| | disable_width | Boolean | false |true/false|锁定裁剪框宽度|否| | disable_height | Boolean | false |true/false|锁定裁剪框高度|否| | disable_ratio | Boolean | false |true/false|锁定裁剪框比例|否| | export_scale | Number | 3 |无限制|输出图片的比例(相对于裁剪框尺寸)|否| | quality | Number | 1 |0-1|生成的图片质量|否| | ~~cut_top~~ | Number | 居中 |始终在屏幕内 |裁剪框上边距|否| | ~~cut_left~~ | Number | 居中 |始终在屏幕内 |裁剪框左边距|否| | img_width | Number | 宽高都不设置,最小边填满裁剪框 |支持%(不加单位为px)(只设置宽度,高度自适应)|图片宽度|否| | img_height | Number | 宽高都不设置,最小边填满裁剪框 |支持%(不加单位为px)(只设置高度,宽度自适应)|图片高度|否| | scale | Number | 1 |无限制|图片的缩放比|否| | angle | Number | 0 |(limit_move=true时angle=n*90)|图片的旋转角度|否| | min_scale | Number | 0.5 |无限制|图片的最小缩放比|否| | max_scale | Number | 2 |无限制|图片的最大缩放比|否| | bindload | Function | null |函数名称|cropper初始化完成|否| | bindimageload | Function | null |函数名称|图片加载完成,返回值Object{width,height,path,type等}|否| | bindtapcut | Function | null |函数名称|点击中间裁剪框,返回值Object{src,width,height}|否|

函数说明

| 函数名 | 参数 | 返回值 |描述|参数必填| | ------------- |:------: |:------:|:------:|:------:| | upload | 无 | 无 |调起wx上传图片接口并开始剪裁|否| | pushImg | src | 无 |开始裁剪图片|是| | getImg |Function(回调函数) | Object{url,width,height} |获取裁剪之后的图片(图片尺寸 = 图片宽高 * export_scale)|是| | ~~setCutXY~~ | X、Y | 无 |设置裁剪框位置|是| | setCutSize | width、height | 无 |设置裁剪框大小|是| | setCutCenter | 无 | 无 |设置裁剪框居中|否| | setScale | scale | 无 |设置图片缩放比例(不受min_scale、max_scale影响)|是| | setAngle | deg | 无 |设置图片旋转角度(带过渡效果)|是| | setTransform |{x,y,angle,scale,cutX,cutY}| 无 |图片在原有基础上的变化(scale受min_scale、max_scale影响)|根据需要传参| | imgReset |无 | 无 |重置图片的角度、缩放、位置(可以在onloadImage回调里使用)|否| | setWidth | width | 无 | 设置图片宽度 |否| | setHeight | height | 无 | 设置图片高度 |否|

996.icu LICENSE

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