781 lines
20 KiB
Vue
781 lines
20 KiB
Vue
<template>
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<view class="tui-container" @touchmove.stop.prevent="stop">
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<view
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class="tui-image-cropper"
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:change:prop="parse.propsChange"
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:prop="props"
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:data-lockRatio="lockRatio"
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:data-lockWidth="lockWidth"
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:data-lockHeight="lockHeight"
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:data-maxWidth="maxWidth"
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:data-minWidth="minWidth"
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:data-maxHeight="maxHeight"
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:data-minHeight="minHeight"
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:data-width="width"
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:data-height="height"
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:data-limitMove="limitMove"
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:data-windowHeight="sysInfo.windowHeight || 600"
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:data-windowWidth="sysInfo.windowWidth || 400"
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:data-imgTop="imgTop"
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:data-imgLeft="imgLeft"
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:data-imgWidth="imgWidth"
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:data-imgHeight="imgHeight"
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:data-angle="angle"
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@touchend="parse.cutTouchEnd"
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@touchstart="parse.cutTouchStart"
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@touchmove="parse.cutTouchMove"
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>
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<view class="tui-content">
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<view class="tui-content-top tui-bg-transparent" :style="{ transitionProperty: cutAnimation ? '' : 'background' }"></view>
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<view class="tui-content-middle">
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<view class="tui-bg-transparent tui-wxs-bg" :style="{ transitionProperty: cutAnimation ? '' : 'background' }"></view>
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<view class="tui-cropper-box" :style="{ borderColor: borderColor, transitionProperty: cutAnimation ? '' : 'background' }">
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<view
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v-for="(item, index) in 4"
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:key="index"
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class="tui-edge"
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:class="[`tui-${index < 2 ? 'top' : 'bottom'}-${index === 0 || index === 2 ? 'left' : 'right'}`]"
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:style="{
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width: edgeWidth,
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height: edgeWidth,
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borderColor: edgeColor,
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borderWidth: edgeBorderWidth,
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left: index === 0 || index === 2 ? `-${edgeOffsets}` : 'auto',
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right: index === 1 || index === 3 ? `-${edgeOffsets}` : 'auto',
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top: index < 2 ? `-${edgeOffsets}` : 'auto',
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bottom: index > 1 ? `-${edgeOffsets}` : 'auto'
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}"
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></view>
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</view>
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<view class="tui-flex-auto tui-bg-transparent" :style="{ transitionProperty: cutAnimation ? '' : 'background' }"></view>
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</view>
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<view class="tui-flex-auto tui-bg-transparent" :style="{ transitionProperty: cutAnimation ? '' : 'background' }"></view>
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</view>
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<image
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@load="imageLoad"
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@error="imageLoad"
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@touchstart="parse.touchstart"
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@touchmove="parse.touchmove"
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@touchend="parse.touchend"
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:data-minScale="minScale"
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:data-maxScale="maxScale"
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:data-disableRotate="disableRotate"
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:style="{
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width: imgWidth ? imgWidth + 'px' : 'auto',
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height: imgHeight ? imgHeight + 'px' : 'auto',
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transitionDuration: (cutAnimation ? 0.3 : 0) + 's'
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}"
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class="tui-cropper-image"
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:src="picturePath"
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v-if="picturePath"
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mode="widthFix"
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></image>
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</view>
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<view class="tui-cropper-tabbar" v-if="!custom">
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<view class="tui-op-btn" @tap.stop="back">取消</view>
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<image :src="rotateImg" class="tui-rotate-img" @tap="setAngle"></image>
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<view class="tui-op-btn" @tap.stop="getImage">完成</view>
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</view>
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</view>
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</template>
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<script src="./tui-cropper-app.wxs" module="parse" lang="wxs"></script>
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<script>
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/**
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* 注意：组件中使用的图片地址，将文件复制到自己项目中
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* 如果图片位置与组件同级，编译成小程序时图片会丢失
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* 拷贝static下整个components文件夹
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*也可直接转成base64（不建议）
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*
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* */
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export default {
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name: 'tuiCropperApp',
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props: {
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//图片路径
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imageUrl: {
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type: String,
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default: ''
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},
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/*
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默认正方形，可修改大小控制比例
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裁剪框高度 px
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*/
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height: {
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type: Number,
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default: 280
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},
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//裁剪框宽度 px
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width: {
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type: Number,
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default: 280
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},
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//裁剪框最小宽度 px
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minWidth: {
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type: Number,
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default: 100
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},
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//裁剪框最小高度 px
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minHeight: {
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type: Number,
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default: 100
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},
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//裁剪框最大宽度 px
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maxWidth: {
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type: Number,
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default: 360
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},
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//裁剪框最大高度 px
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maxHeight: {
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type: Number,
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default: 360
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},
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//裁剪框border颜色
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borderColor: {
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type: String,
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default: 'rgba(255,255,255,0.1)'
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},
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//裁剪框边缘线颜色
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edgeColor: {
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type: String,
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default: '#FFFFFF'
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},
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//裁剪框边缘线宽度 w=h
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edgeWidth: {
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type: String,
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default: '34rpx'
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},
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//裁剪框边缘线border宽度
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edgeBorderWidth: {
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type: String,
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default: '6rpx'
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},
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//偏移距离，根据edgeBorderWidth进行调整
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edgeOffsets: {
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type: String,
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default: '6rpx'
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},
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/**
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* 如果宽度和高度都为true则裁剪框禁止拖动
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* 裁剪框宽度锁定
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*/
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lockWidth: {
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type: Boolean,
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default: false
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},
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//裁剪框高度锁定
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lockHeight: {
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type: Boolean,
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default: false
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},
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//锁定裁剪框比例（放大或缩小）
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lockRatio: {
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type: Boolean,
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default: false
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},
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//生成的图片尺寸相对剪裁框的比例
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scaleRatio: {
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type: Number,
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default: 2
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},
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//图片的质量，取值范围为 (0, 1]，不在范围内时当作1.0处理
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quality: {
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type: Number,
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default: 0.8
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},
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//图片旋转角度[当前版本只能传90的倍数，否则可能导致裁剪失败或不正确]
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rotateAngle: {
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type: Number,
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default: 0
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},
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//图片最小缩放比
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minScale: {
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type: Number,
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default: 0.5
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},
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//图片最大缩放比
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maxScale: {
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type: Number,
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default: 2
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},
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//是否禁用触摸旋转（为false则可以触摸转动图片，limitMove为false生效）
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//此属性App端当前版本不可用，否则可能导致裁剪失败或不正确
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disableRotate: {
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type: Boolean,
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default: true
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},
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//是否限制移动范围(剪裁框只能在图片内,为true不可触摸转动图片)
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//注意:此属性当前版本不可传false，由于api不支持超出裁剪区域裁剪，所以只能限制在裁剪框内
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limitMove: {
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type: Boolean,
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default: true
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},
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//自定义操作栏（为true时隐藏底部操作栏）
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custom: {
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type: Boolean,
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default: false
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},
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//值发生改变开始裁剪（custom为true时生效）
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startCutting: {
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type: [Number, Boolean],
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default: 0
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},
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/**
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* 是否返回base64(H5端默认base64)
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* 支持平台：App，微信小程序，支付宝小程序,H5(默认url就是base64)
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**/
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isBase64: {
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type: Boolean,
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default: false
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},
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//裁剪时是否显示loadding
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loadding: {
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type: Boolean,
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default: true
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},
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//旋转icon
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rotateImg: {
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type: String,
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default: '/static/components/cropper/img_rotate.png'
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}
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},
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data() {
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return {
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TIME_CUT_CENTER: null,
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cutX: 0, //画布x轴起点
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cutY: 0, //画布y轴起点0
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canvasWidth: 0,
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canvasHeight: 0,
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naturalWidth: 0,
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naturalHeight: 0,
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imgWidth: 0, //图片宽度
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imgHeight: 0, //图片高度
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scale: 1, //图片缩放比
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angle: 0, //图片旋转角度
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cutAnimation: false, //是否开启图片和裁剪框过渡
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cutAnimationTime: null,
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imgTop: 0, //图片上边距
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imgLeft: 0, //图片左边距
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sysInfo: {},
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props: '',
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sizeChange: 0, //2
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angleChange: 0, //3
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resetChange: 0, //4
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centerChange: 0, //5
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orientation: '',
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picturePath: ''
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};
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},
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watch: {
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//定义变量然后利用change触发
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imageUrl(val, oldVal) {
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this.imageReset();
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this.showLoading();
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uni.getImageInfo({
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src: val,
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success: res => {
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//计算图片尺寸
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this.naturalWidth = res.width;
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this.naturalHeight = res.height;
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this.orientation = res.orientation;
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if (this.orientation != 'up') {
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//宽高传值颠倒
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let width = this.orientation == 'down' ? res.width : res.height;
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let height = this.orientation == 'down' ? res.height : res.width;
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this.compressImage(val, width, height);
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} else {
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this.picturePath = val;
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this.imgComputeSize(res.width, res.height);
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if (this.limitMove) {
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this.angleChange++;
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this.props = `3,${this.angleChange}`;
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}
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}
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},
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fail: err => {
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this.imgComputeSize();
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if (this.limitMove) {
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this.angleChange++;
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this.props = `3,${this.angleChange}`;
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}
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}
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});
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},
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rotateAngle(val) {
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this.cutAnimation = true;
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this.angle = val;
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this.angleChanged(val);
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},
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cutAnimation(val) {
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//开启过渡260毫秒之后自动关闭
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clearTimeout(this.cutAnimationTime);
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if (val) {
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this.cutAnimationTime = setTimeout(() => {
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this.cutAnimation = false;
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}, 260);
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}
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},
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limitMove(val) {
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if (val) {
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this.angleChanged(this.angle);
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}
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},
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startCutting(val) {
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if (this.custom && val) {
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this.getImage();
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}
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}
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},
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created() {
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this.picturePath = this.imageUrl;
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},
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mounted() {
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this.sysInfo = uni.getSystemInfoSync();
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this.imgTop = this.sysInfo.windowHeight / 2;
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this.imgLeft = this.sysInfo.windowWidth / 2;
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this.canvasHeight = this.height;
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this.canvasWidth = this.width;
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//初始化
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setTimeout(() => {
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this.props = '1,1';
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}, 0);
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setTimeout(() => {
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this.$emit('ready', {});
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}, 200);
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},
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methods: {
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toast(title) {
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uni.showToast({
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title: title || '出错啦~',
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icon: 'none'
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});
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},
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async compressImage(url, width, height) {
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let imgUrl = url;
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if (~imgUrl.indexOf('https:')) {
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imgUrl = await this.getLocalImage(url);
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if (!imgUrl) {
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this.toast('网络图片处理失败~');
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return;
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}
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}
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let defaultAngle =
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{
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up: 0,
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down: 180,
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left: 270,
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right: 90
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}[this.orientation] || 0;
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let f_dst = `_documents/${this.unique()}.jpg`;
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plus.zip.compressImage(
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{
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src: imgUrl,
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dst: f_dst,
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overwrite: true,
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rotate: defaultAngle,
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format: 'jpg'
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},
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i => {
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this.picturePath = i.target;
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this.imgComputeSize(width, height);
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if (this.limitMove) {
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this.angleChange++;
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this.props = `3,${this.angleChange}`;
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}
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},
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e => {
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this.picturePath = imgUrl;
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this.imgComputeSize(width, height);
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if (this.limitMove) {
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this.angleChange++;
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this.props = `3,${this.angleChange}`;
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}
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}
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);
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},
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//网络图片转成本地文件[同步执行]
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async getLocalImage(url) {
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return await new Promise((resolve, reject) => {
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uni.downloadFile({
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url: url,
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success: res => {
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resolve(res.tempFilePath);
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},
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fail: res => {
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reject(false);
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}
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});
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});
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},
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//返回裁剪后图片信息
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getImage() {
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if (!this.picturePath) {
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this.toast('请选择图片');
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return;
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}
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this.loadding && this.showLoading();
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let cutting = async () => {
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//图片实际大小
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let imgUrl = this.picturePath;
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if (~this.picturePath.indexOf('https:')) {
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imgUrl = await this.getLocalImage(this.picturePath);
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if (!imgUrl) {
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this.toast('网络图片处理失败~');
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return;
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}
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}
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let data = {
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url: '',
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base64: ''
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};
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let f_dst = `_documents/${this.unique()}.jpg`;
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let multiple = Math.round(this.angle / 90);
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let angle = 0,
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x = 0,
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y = 0,
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left = 0,
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top = 0,
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clipHeight = 0,
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clipWidth = 0;
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let isAndroid = this.sysInfo.platform.toLocaleLowerCase() == 'android';
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if (multiple % 2 == 0) {
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angle = this.angle % 360 == 0 || this.angle == 0 ? 0 : 180;
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if (!isAndroid || (isAndroid && angle == 0)) {
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x = this.imgLeft - (this.imgWidth * this.scale) / 2;
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y = this.imgTop - (this.imgHeight * this.scale) / 2;
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left = (((this.cutX - x) / this.imgWidth / this.scale) * 100).toFixed(2);
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top = (((this.cutY - y) / this.imgHeight / this.scale) * 100).toFixed(2);
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clipWidth = ((this.canvasWidth / this.imgWidth / this.scale) * 100).toFixed(2);
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clipHeight = ((this.canvasHeight / this.imgHeight / this.scale) * 100).toFixed(2);
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} else {
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x = this.imgLeft - (this.imgWidth * this.scale) / 2;
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y = this.imgTop - (this.imgHeight * this.scale) / 2;
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left = (((this.imgWidth * this.scale - (this.cutX - x) - this.canvasWidth) / this.imgWidth / this.scale) * 100).toFixed(2);
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top = (((this.imgHeight * this.scale - (this.cutY - y) - this.canvasHeight) / this.imgHeight / this.scale) * 100).toFixed(2);
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clipWidth = ((this.canvasWidth / this.imgWidth / this.scale) * 100).toFixed(2);
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clipHeight = ((this.canvasHeight / this.imgHeight / this.scale) * 100).toFixed(2);
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}
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} else {
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angle = this.angle % 270 == 0 ? 270 : 90;
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if (isAndroid) {
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if (angle == 90) {
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x = this.imgLeft - (this.imgHeight * this.scale) / 2;
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y = this.imgTop - (this.imgWidth * this.scale) / 2;
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top = (((this.imgHeight * this.scale - (this.cutX - x) - this.canvasHeight) / this.imgHeight / this.scale) * 100).toFixed(2);
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left = (((this.imgWidth * this.scale - (this.cutY - y) - this.canvasWidth) / this.imgWidth / this.scale) * 100).toFixed(2);
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clipHeight = ((this.canvasWidth / this.imgHeight / this.scale) * 100).toFixed(2);
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clipWidth = ((this.canvasHeight / this.imgWidth / this.scale) * 100).toFixed(2);
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} else {
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x = this.imgLeft - (this.imgHeight * this.scale) / 2;
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y = this.imgTop - (this.imgWidth * this.scale) / 2;
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top = (((this.cutX - x) / this.imgHeight / this.scale) * 100).toFixed(2);
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left = (((this.cutY - y) / this.imgWidth / this.scale) * 100).toFixed(2);
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clipHeight = ((this.canvasWidth / this.imgHeight / this.scale) * 100).toFixed(2);
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clipWidth = ((this.canvasHeight / this.imgWidth / this.scale) * 100).toFixed(2);
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}
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} else {
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x = this.imgLeft - (this.imgHeight * this.scale) / 2;
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y = this.imgTop - (this.imgWidth * this.scale) / 2;
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left = (((this.cutX - x) / this.imgHeight / this.scale) * 100).toFixed(2);
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top = (((this.cutY - y) / this.imgWidth / this.scale) * 100).toFixed(2);
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clipWidth = ((this.canvasWidth / this.imgHeight / this.scale) * 100).toFixed(2);
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clipHeight = ((this.canvasHeight / this.imgWidth / this.scale) * 100).toFixed(2);
|
|
}
|
|
}
|
|
let width = (this.imgWidth < this.naturalWidth ? this.naturalWidth : this.imgWidth) * this.scale;
|
|
let height = (this.imgHeight < this.naturalHeight ? this.naturalHeight : this.imgHeight) * this.scale;
|
|
// if (isAndroid && width > 800) {
|
|
// width = '800px';
|
|
// height = 'auto'
|
|
// } else {
|
|
// width = `${width}px`;
|
|
// height = `${height}px`
|
|
// }
|
|
width = `${width}px`;
|
|
height = `${height}px`;
|
|
left = Number(left) <= 0 ? 0 : left;
|
|
top = Number(top) <= 0 ? 0 : top;
|
|
plus.zip.compressImage(
|
|
{
|
|
src: imgUrl,
|
|
dst: f_dst,
|
|
quality: this.quality * 100,
|
|
overwrite: true,
|
|
format: 'jpg',
|
|
width: width,
|
|
height: height,
|
|
rotate: angle,
|
|
clip: {
|
|
top: `${top}%`,
|
|
left: `${left}%`,
|
|
width: `${clipWidth}%`,
|
|
height: `${clipHeight}%`
|
|
}
|
|
},
|
|
i => {
|
|
this.loadding && uni.hideLoading();
|
|
data.url = i.target;
|
|
if (this.isBase64) {
|
|
plus.io.resolveLocalFileSystemURL(f_dst, entry => {
|
|
entry.file(
|
|
file => {
|
|
let reader = new plus.io.FileReader();
|
|
reader.onloadend = e => {
|
|
data.base64 = e.target.result;
|
|
this.$emit('cropper', data);
|
|
};
|
|
reader.readAsDataURL(file);
|
|
},
|
|
e => {
|
|
//转换base64失败，传回图片url
|
|
this.$emit('cropper', data);
|
|
}
|
|
);
|
|
});
|
|
} else {
|
|
this.$emit('cropper', data);
|
|
}
|
|
},
|
|
e => {
|
|
console.log(e);
|
|
this.toast('图片裁剪失败,请稍候再试~');
|
|
//原图输出
|
|
// data.url = imgUrl;
|
|
// this.$emit('cropper', data);
|
|
}
|
|
);
|
|
};
|
|
setTimeout(() => {
|
|
cutting();
|
|
}, 20);
|
|
},
|
|
unique(n = 6) {
|
|
let rnd = '';
|
|
for (let i = 0; i < n; i++) rnd += Math.floor(Math.random() * 10);
|
|
return 'thorui_' + new Date().getTime() + rnd;
|
|
},
|
|
change(e) {
|
|
this.cutX = e.cutX || 0;
|
|
this.cutY = e.cutY || 0;
|
|
this.canvasWidth = e.canvasWidth || this.width;
|
|
this.canvasHeight = e.canvasHeight || this.height;
|
|
this.imgWidth = e.imgWidth || this.imgWidth;
|
|
this.imgHeight = e.imgHeight || this.imgHeight;
|
|
this.scale = e.scale || 1;
|
|
this.angle = e.angle || 0;
|
|
this.imgTop = e.imgTop || 0;
|
|
this.imgLeft = e.imgLeft || 0;
|
|
},
|
|
imageReset() {
|
|
this.scale = 1;
|
|
this.angle = 0;
|
|
let sys = this.sysInfo.windowHeight ? this.sysInfo : uni.getSystemInfoSync();
|
|
this.imgTop = sys.windowHeight / 2;
|
|
this.imgLeft = sys.windowWidth / 2;
|
|
this.resetChange++;
|
|
this.props = `4,${this.resetChange}`;
|
|
//初始化旋转角度 0deg
|
|
this.$emit('initAngle', {});
|
|
},
|
|
imageLoad(e) {
|
|
this.imageReset();
|
|
uni.hideLoading();
|
|
this.$emit('imageLoad', {});
|
|
},
|
|
|
|
imgComputeSize(width, height) {
|
|
//默认按图片最小边 = 对应裁剪框尺寸
|
|
let imgWidth = width,
|
|
imgHeight = height;
|
|
if (imgWidth && imgHeight) {
|
|
if (imgWidth / imgHeight > this.width / this.height) {
|
|
imgHeight = this.height;
|
|
imgWidth = (width / height) * imgHeight;
|
|
} else {
|
|
imgWidth = this.width;
|
|
imgHeight = (height / width) * imgWidth;
|
|
}
|
|
} else {
|
|
let sys = this.sysInfo || uni.getSystemInfoSync();
|
|
imgWidth = sys.windowWidth;
|
|
imgHeight = 0;
|
|
}
|
|
this.imgWidth = imgWidth;
|
|
this.imgHeight = imgHeight;
|
|
this.sizeChange++;
|
|
this.props = `2,${this.sizeChange}`;
|
|
},
|
|
moveStop() {
|
|
clearTimeout(this.TIME_CUT_CENTER);
|
|
this.TIME_CUT_CENTER = setTimeout(() => {
|
|
if (!this.cutAnimation) {
|
|
this.cutAnimation = true;
|
|
}
|
|
this.centerChange++;
|
|
this.props = `5,${this.centerChange}`;
|
|
}, 666);
|
|
},
|
|
moveDuring() {
|
|
clearTimeout(this.TIME_CUT_CENTER);
|
|
},
|
|
showLoading() {
|
|
uni.showLoading({
|
|
title: '请稍候...',
|
|
mask: true
|
|
});
|
|
},
|
|
stop() {},
|
|
back() {
|
|
uni.navigateBack();
|
|
},
|
|
angleChanged(val) {
|
|
this.moveStop();
|
|
if (this.limitMove && val % 90) {
|
|
this.angle = Math.round(val / 90) * 90;
|
|
}
|
|
this.angleChange++;
|
|
this.props = `3,${this.angleChange}`;
|
|
},
|
|
setAngle() {
|
|
this.cutAnimation = true;
|
|
this.angle = this.angle + 90;
|
|
this.angleChanged(this.angle);
|
|
}
|
|
}
|
|
};
|
|
</script>
|
|
|
|
<style scoped>
|
|
.tui-container {
|
|
width: 100vw;
|
|
height: 100vh;
|
|
background-color: rgba(0, 0, 0, 0.6);
|
|
position: fixed;
|
|
top: 0;
|
|
left: 0;
|
|
z-index: 1;
|
|
}
|
|
|
|
.tui-image-cropper {
|
|
width: 100vw;
|
|
height: 100vh;
|
|
position: absolute;
|
|
}
|
|
|
|
.tui-content {
|
|
width: 100vw;
|
|
height: 100vh;
|
|
position: absolute;
|
|
z-index: 9;
|
|
display: flex;
|
|
flex-direction: column;
|
|
pointer-events: none;
|
|
}
|
|
|
|
.tui-bg-transparent {
|
|
background-color: rgba(0, 0, 0, 0.6);
|
|
transition-duration: 0.3s;
|
|
}
|
|
|
|
.tui-content-top {
|
|
pointer-events: none;
|
|
}
|
|
|
|
.tui-content-middle {
|
|
width: 100%;
|
|
height: 200px;
|
|
display: flex;
|
|
box-sizing: border-box;
|
|
}
|
|
|
|
.tui-cropper-box {
|
|
position: relative;
|
|
/* transition-duration: 0.2s; */
|
|
border-style: solid;
|
|
border-width: 1rpx;
|
|
box-sizing: border-box;
|
|
}
|
|
|
|
.tui-flex-auto {
|
|
flex: auto;
|
|
}
|
|
|
|
.tui-cropper-image {
|
|
width: 100%;
|
|
border-style: none;
|
|
position: absolute;
|
|
top: 0;
|
|
left: 0;
|
|
z-index: 2;
|
|
-webkit-backface-visibility: hidden;
|
|
backface-visibility: hidden;
|
|
transform-origin: center;
|
|
}
|
|
|
|
.tui-edge {
|
|
border-style: solid;
|
|
pointer-events: auto;
|
|
position: absolute;
|
|
box-sizing: border-box;
|
|
}
|
|
|
|
.tui-top-left {
|
|
border-bottom-width: 0 !important;
|
|
border-right-width: 0 !important;
|
|
}
|
|
|
|
.tui-top-right {
|
|
border-bottom-width: 0 !important;
|
|
border-left-width: 0 !important;
|
|
}
|
|
|
|
.tui-bottom-left {
|
|
border-top-width: 0 !important;
|
|
border-right-width: 0 !important;
|
|
}
|
|
|
|
.tui-bottom-right {
|
|
border-top-width: 0 !important;
|
|
border-left-width: 0 !important;
|
|
}
|
|
|
|
.tui-cropper-tabbar {
|
|
width: 100%;
|
|
height: 120rpx;
|
|
padding: 0 40rpx;
|
|
box-sizing: border-box;
|
|
position: fixed;
|
|
left: 0;
|
|
bottom: 0;
|
|
z-index: 99;
|
|
display: flex;
|
|
align-items: center;
|
|
justify-content: space-between;
|
|
color: #ffffff;
|
|
font-size: 32rpx;
|
|
}
|
|
|
|
.tui-cropper-tabbar::after {
|
|
content: ' ';
|
|
position: absolute;
|
|
top: 0;
|
|
right: 0;
|
|
left: 0;
|
|
border-top: 1rpx solid rgba(255, 255, 255, 0.2);
|
|
-webkit-transform: scaleY(0.5) translateZ(0);
|
|
transform: scaleY(0.5) translateZ(0);
|
|
transform-origin: 0 100%;
|
|
}
|
|
|
|
.tui-op-btn {
|
|
height: 80rpx;
|
|
display: flex;
|
|
align-items: center;
|
|
}
|
|
|
|
.tui-rotate-img {
|
|
width: 44rpx;
|
|
height: 44rpx;
|
|
}
|
|
</style>
|