<template>
    <a-modal
            title="裁剪图片"
            :visible="show"
            :maskClosable="false"
            @ok="handleOk"
            @cancel="handleClose"
            :width="1440"
            class="pic-box"
    >
        <div style="display:flex;">
            <!--<div class="info-item" style="flex:1;">-->
            <!--<div style="width:150px;height:150px;overflow:hidden;border:1px solid #ddd">-->
            <!--<img style="width:120px;height:120px;" :src="headImg" alt="头像">-->
            <!--</div>-->
            <!--</div>-->
            <div class="info-item" style="flex:1">
                <!--<label class="btn btn-orange" for="uploads"-->
                <!--style="display:inline-block;width: 70px;padding: 0;text-align: center;line-height: 28px;">选择图片</label>-->
                <!--<input type="file" id="uploads" :value="imgFile" style="position:absolute; clip:rect(0 0 0 0);display: none"-->
                <!--accept="image/png, image/jpeg, image/gif, image/jpg" @change="uploadImg($event, 1)">-->
                <!--<input type="button" class="oper" style="height:20px;width:23px;font-size:20px;margin:3px 5px;"-->
                <!--value="+" title="放大" @click="changeScale(1)">-->
                <!--<input type="button" class="oper" style="height:20px;width:23px;font-size:20px;margin:3px 5px;"-->
                <!--value="-" title="缩小" @click="changeScale(-1)">-->
                <!--<input type="button" class="oper" style="height:20px;width:23px;font-size:20px;margin:3px 5px;"-->
                <!--value="↺" title="左旋转" @click="rotateLeft">-->
                <!--<input type="button" class="oper" style="height:20px;width:23px;font-size:20px;margin:3px 5px;"-->
                <!--value="↻" title="右旋转" @click="rotateRight">-->
                <!--<input type="button" class="oper" style="height:20px;width:23px;font-size:20px;margin:3px 5px;"-->
                <!--value="↓" title="下载" @click="down('blob')">-->
                <!--<input type="button" class="btn btn-blue" value="上传头像" @click="finish()">-->
                <div class="line">
                    <div class="cropper-content">
                        <div class="cropper">
                            <vueCropper
                                    ref="cropper"
                                    :img="option.img"
                                    :outputSize="option.size"
                                    :outputType="option.outputType"
                                    :info="true"
                                    :full="option.full"
                                    :canMove="option.canMove"
                                    :canMoveBox="option.canMoveBox"
                                    :original="option.original"
                                    :autoCrop="option.autoCrop"
                                    :autoCropWidth="option.autoCropWidth"
                                    :autoCropHeight="option.autoCropHeight"
                                    :fixedBox="option.fixedBox"
                                    :fixed="option.fixed"
                                    :fixedNumber="option.fixedNumber"
                                    @realTime="realTime"
                                    @imgLoad="imgLoad"
                            ></vueCropper>
                        </div>
                        <div style="margin-left:20px;">
                            <div class="show-preview"
                                 :style="{'width': '364px', 'height':'364px',  'overflow': 'hidden', 'margin': '5px'}">
                                <div :style="previews.div" class="preview">
                                    <img :src="previews.url" :style="previews.img">
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
                <div class="pic-tips">
                    如果图片太大，请用鼠标滚轮控制大小。
                </div>
            </div>
        </div>
    </a-modal>
</template>

<script>
  import { VueCropper } from 'vue-cropper'

  export default {
    name: 'cropper-img-modal',
    // 需要剪切的图片路径
    props: ['paramImgUrl'],
    components: {
      VueCropper
    },
    data () {
      return {
        show: true,
        headImg: '',
        //剪切图片上传
        crap: false,
        previews: {},
        option: {
          img: '',
          outputSize: 1, //剪切后的图片质量（0.1-1）
          full: false,//输出原图比例截图 props名full
          outputType: 'png',
          canMove: true,
          original: false,
          canMoveBox: true,
          autoCrop: true,
          autoCropWidth: 364,
          autoCropHeight: 364,
          fixed: true,
          fixedBox: false,
          fixedNumber: [1,1]
        },
        fileName: '',  //本机文件地址
        downImg: '#',
        imgFile: '',
        uploadImgRelaPath: '' //上传后的图片的地址（不带服务器域名）
      }
    },
    created () {
      if (this.paramImgUrl) {
        this.option.img = this.paramImgUrl
      }
    },
    methods: {
      handleOk () {
        this.$refs.cropper.getCropData((data) => {
          if(encodeURIComponent(data).length > 65535) {
            this.$message.error('图片过大，请重新裁剪')
            return false
          }
          // let a  =encodeURI(data)
          this.$close({data: data})
        })
      },
      handleClose () {
        this.$close(false)
      },
      //放大/缩小
      changeScale (num) {
        num = num || 1
        this.$refs.cropper.changeScale(num)
      },
      //坐旋转
      rotateLeft () {
        console.log('rotateLeft')
        this.$refs.cropper.rotateLeft()
      },
      //右旋转
      rotateRight () {
        console.log('rotateRight')
        this.$refs.cropper.rotateRight()
      },
      //上传图片（点击上传按钮）
      finish (type) {
        console.log('finish')
        let _this = this
        let formData = new FormData()
        // 输出
        if (type === 'blob') {
          this.$refs.cropper.getCropBlob((data) => {
            let img = window.URL.createObjectURL(data)
            this.model = true
            this.modelSrc = img
            formData.append('file', data, this.fileName)
            this.$http.post(Api.uploadSysHeadImg.url, formData,
              {contentType: false, processData: false, headers: {'Content-Type': 'application/x-www-form-urlencoded'}}).
              then((response) => {
                var res = response.data
                if (res.success == 1) {
                  $('#btn1').val('')
                  _this.imgFile = ''
                  _this.headImg = res.realPathList[0]  //完整路径
                  _this.uploadImgRelaPath = res.relaPathList[0]  //非完整路径
                  _this.$message({　　//element-ui的消息Message消息提示组件
                    type: 'success',
                    message: '上传成功'
                  })
                }
              })
          })
        } else {
          this.$refs.cropper.getCropData((data) => {
            this.model = true
            this.modelSrc = data
            // ajax
          })
        }
      },
      // 实时预览函数
      realTime (data) {
        this.previews = data
      },
      //下载图片
      down (type) {
        console.log('down')
        var aLink = document.createElement('a')
        aLink.download = 'author-img'
        if (type === 'blob') {
          this.$refs.cropper.getCropBlob((data) => {
            this.downImg = window.URL.createObjectURL(data)
            aLink.href = window.URL.createObjectURL(data)
            aLink.click()
          })
        } else {
          this.$refs.cropper.getCropData((data) => {
            this.downImg = data
            aLink.href = data
            aLink.click()
          })
        }
      },
      //选择本地图片
      uploadImg (e, num) {
        console.log('uploadImg')
        var _this = this
        //上传图片
        var file = e.target.files[0]
        _this.fileName = file.name
        if (!/\.(gif|jpg|jpeg|png|bmp|GIF|JPG|PNG|JPEG|BMP)$/.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
          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blob
        // reader.readAsArrayBuffer(file)

      },
      imgLoad (msg) {
      }
    }
  }
</script>

<style lang="less">
    .pic-box .ant-modal-body{
        padding:20px 0px 0px
    }
    .pic-tips{
        background-color: #f8f9f9;
        height: 60px;
        line-height: 60px;
        color:#a4a5a6;
        text-align: center;
        margin-top: 10px;
    }

    .info {
        width: 720px;
        margin: 0 auto;
        .oper-dv {
            height: 20px;
            text-align: right;
            margin-right: 100px;
            a {
                font-weight: 500;
                &:last-child {
                    margin-left: 30px;
                }
            }
        }
        .info-item {
            margin-top: 15px;
            label {
                display: inline-block;
                width: 100px;
                text-align: right;
            }
            .sel-img-dv {
                position: relative;
                .sel-file {
                    position: absolute;
                    width: 90px;
                    height: 30px;
                    opacity: 0;
                    cursor: pointer;
                    z-index: 2;
                }
                .sel-btn {
                    position: absolute;
                    cursor: pointer;
                    z-index: 1;
                }
            }
        }
    }

    .cropper-content {
        display: flex;
        display: -webkit-flex;
        justify-content: center;
        -webkit-justify-content: center;
        .cropper {
            width: 800px;
            height: 600px;
        }
        .show-preview {
            flex: 1;
            -webkit-flex: 1;
            display: flex;
            display: -webkit-flex;
            justify-content: center;
            -webkit-justify-content: center;
            .preview {
                overflow: hidden;
                border: 1px solid #cccccc;
                background: #cccccc;
                margin-left: 40px;
            }
        }
    }

    .cropper-content .show-preview .preview {
        margin-left: 0;
    }

</style>
