Files
t/components/thorui/tui-cropper-app/tui-cropper-app.vue
T
2025-03-21 09:38:06 +08:00

781 lines
20 KiB
Vue

<template>
<view class="tui-container" @touchmove.stop.prevent="stop">
<view
class="tui-image-cropper"
:change:prop="parse.propsChange"
:prop="props"
:data-lockRatio="lockRatio"
:data-lockWidth="lockWidth"
:data-lockHeight="lockHeight"
:data-maxWidth="maxWidth"
:data-minWidth="minWidth"
:data-maxHeight="maxHeight"
:data-minHeight="minHeight"
:data-width="width"
:data-height="height"
:data-limitMove="limitMove"
:data-windowHeight="sysInfo.windowHeight || 600"
:data-windowWidth="sysInfo.windowWidth || 400"
:data-imgTop="imgTop"
:data-imgLeft="imgLeft"
:data-imgWidth="imgWidth"
:data-imgHeight="imgHeight"
:data-angle="angle"
@touchend="parse.cutTouchEnd"
@touchstart="parse.cutTouchStart"
@touchmove="parse.cutTouchMove"
>
<view class="tui-content">
<view class="tui-content-top tui-bg-transparent" :style="{ transitionProperty: cutAnimation ? '' : 'background' }"></view>
<view class="tui-content-middle">
<view class="tui-bg-transparent tui-wxs-bg" :style="{ transitionProperty: cutAnimation ? '' : 'background' }"></view>
<view class="tui-cropper-box" :style="{ borderColor: borderColor, transitionProperty: cutAnimation ? '' : 'background' }">
<view
v-for="(item, index) in 4"
:key="index"
class="tui-edge"
:class="[`tui-${index < 2 ? 'top' : 'bottom'}-${index === 0 || index === 2 ? 'left' : 'right'}`]"
:style="{
width: edgeWidth,
height: edgeWidth,
borderColor: edgeColor,
borderWidth: edgeBorderWidth,
left: index === 0 || index === 2 ? `-${edgeOffsets}` : 'auto',
right: index === 1 || index === 3 ? `-${edgeOffsets}` : 'auto',
top: index < 2 ? `-${edgeOffsets}` : 'auto',
bottom: index > 1 ? `-${edgeOffsets}` : 'auto'
}"
></view>
</view>
<view class="tui-flex-auto tui-bg-transparent" :style="{ transitionProperty: cutAnimation ? '' : 'background' }"></view>
</view>
<view class="tui-flex-auto tui-bg-transparent" :style="{ transitionProperty: cutAnimation ? '' : 'background' }"></view>
</view>
<image
@load="imageLoad"
@error="imageLoad"
@touchstart="parse.touchstart"
@touchmove="parse.touchmove"
@touchend="parse.touchend"
:data-minScale="minScale"
:data-maxScale="maxScale"
:data-disableRotate="disableRotate"
:style="{
width: imgWidth ? imgWidth + 'px' : 'auto',
height: imgHeight ? imgHeight + 'px' : 'auto',
transitionDuration: (cutAnimation ? 0.3 : 0) + 's'
}"
class="tui-cropper-image"
:src="picturePath"
v-if="picturePath"
mode="widthFix"
></image>
</view>
<view class="tui-cropper-tabbar" v-if="!custom">
<view class="tui-op-btn" @tap.stop="back">取消</view>
<image :src="rotateImg" class="tui-rotate-img" @tap="setAngle"></image>
<view class="tui-op-btn" @tap.stop="getImage">完成</view>
</view>
</view>
</template>
<script src="./tui-cropper-app.wxs" module="parse" lang="wxs"></script>
<script>
/**
* 注意:组件中使用的图片地址,将文件复制到自己项目中
* 如果图片位置与组件同级,编译成小程序时图片会丢失
* 拷贝static下整个components文件夹
*也可直接转成base64(不建议)
*
* */
export default {
name: 'tuiCropperApp',
props: {
//图片路径
imageUrl: {
type: String,
default: ''
},
/*
默认正方形,可修改大小控制比例
裁剪框高度 px
*/
height: {
type: Number,
default: 280
},
//裁剪框宽度 px
width: {
type: Number,
default: 280
},
//裁剪框最小宽度 px
minWidth: {
type: Number,
default: 100
},
//裁剪框最小高度 px
minHeight: {
type: Number,
default: 100
},
//裁剪框最大宽度 px
maxWidth: {
type: Number,
default: 360
},
//裁剪框最大高度 px
maxHeight: {
type: Number,
default: 360
},
//裁剪框border颜色
borderColor: {
type: String,
default: 'rgba(255,255,255,0.1)'
},
//裁剪框边缘线颜色
edgeColor: {
type: String,
default: '#FFFFFF'
},
//裁剪框边缘线宽度 w=h
edgeWidth: {
type: String,
default: '34rpx'
},
//裁剪框边缘线border宽度
edgeBorderWidth: {
type: String,
default: '6rpx'
},
//偏移距离,根据edgeBorderWidth进行调整
edgeOffsets: {
type: String,
default: '6rpx'
},
/**
* 如果宽度和高度都为true则裁剪框禁止拖动
* 裁剪框宽度锁定
*/
lockWidth: {
type: Boolean,
default: false
},
//裁剪框高度锁定
lockHeight: {
type: Boolean,
default: false
},
//锁定裁剪框比例(放大或缩小)
lockRatio: {
type: Boolean,
default: false
},
//生成的图片尺寸相对剪裁框的比例
scaleRatio: {
type: Number,
default: 2
},
//图片的质量,取值范围为 (0, 1],不在范围内时当作1.0处理
quality: {
type: Number,
default: 0.8
},
//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]
rotateAngle: {
type: Number,
default: 0
},
//图片最小缩放比
minScale: {
type: Number,
default: 0.5
},
//图片最大缩放比
maxScale: {
type: Number,
default: 2
},
//是否禁用触摸旋转(为false则可以触摸转动图片,limitMove为false生效)
//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
disableRotate: {
type: Boolean,
default: true
},
//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)
//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
limitMove: {
type: Boolean,
default: true
},
//自定义操作栏(为true时隐藏底部操作栏)
custom: {
type: Boolean,
default: false
},
//值发生改变开始裁剪(custom为true时生效)
startCutting: {
type: [Number, Boolean],
default: 0
},
/**
* 是否返回base64(H5端默认base64)
* 支持平台:App,微信小程序,支付宝小程序,H5(默认url就是base64)
**/
isBase64: {
type: Boolean,
default: false
},
//裁剪时是否显示loadding
loadding: {
type: Boolean,
default: true
},
//旋转icon
rotateImg: {
type: String,
default: '/static/components/cropper/img_rotate.png'
}
},
data() {
return {
TIME_CUT_CENTER: null,
cutX: 0, //画布x轴起点
cutY: 0, //画布y轴起点0
canvasWidth: 0,
canvasHeight: 0,
naturalWidth: 0,
naturalHeight: 0,
imgWidth: 0, //图片宽度
imgHeight: 0, //图片高度
scale: 1, //图片缩放比
angle: 0, //图片旋转角度
cutAnimation: false, //是否开启图片和裁剪框过渡
cutAnimationTime: null,
imgTop: 0, //图片上边距
imgLeft: 0, //图片左边距
sysInfo: {},
props: '',
sizeChange: 0, //2
angleChange: 0, //3
resetChange: 0, //4
centerChange: 0, //5
orientation: '',
picturePath: ''
};
},
watch: {
//定义变量然后利用change触发
imageUrl(val, oldVal) {
this.imageReset();
this.showLoading();
uni.getImageInfo({
src: val,
success: res => {
//计算图片尺寸
this.naturalWidth = res.width;
this.naturalHeight = res.height;
this.orientation = res.orientation;
if (this.orientation != 'up') {
//宽高传值颠倒
let width = this.orientation == 'down' ? res.width : res.height;
let height = this.orientation == 'down' ? res.height : res.width;
this.compressImage(val, width, height);
} else {
this.picturePath = val;
this.imgComputeSize(res.width, res.height);
if (this.limitMove) {
this.angleChange++;
this.props = `3,${this.angleChange}`;
}
}
},
fail: err => {
this.imgComputeSize();
if (this.limitMove) {
this.angleChange++;
this.props = `3,${this.angleChange}`;
}
}
});
},
rotateAngle(val) {
this.cutAnimation = true;
this.angle = val;
this.angleChanged(val);
},
cutAnimation(val) {
//开启过渡260毫秒之后自动关闭
clearTimeout(this.cutAnimationTime);
if (val) {
this.cutAnimationTime = setTimeout(() => {
this.cutAnimation = false;
}, 260);
}
},
limitMove(val) {
if (val) {
this.angleChanged(this.angle);
}
},
startCutting(val) {
if (this.custom && val) {
this.getImage();
}
}
},
created() {
this.picturePath = this.imageUrl;
},
mounted() {
this.sysInfo = uni.getSystemInfoSync();
this.imgTop = this.sysInfo.windowHeight / 2;
this.imgLeft = this.sysInfo.windowWidth / 2;
this.canvasHeight = this.height;
this.canvasWidth = this.width;
//初始化
setTimeout(() => {
this.props = '1,1';
}, 0);
setTimeout(() => {
this.$emit('ready', {});
}, 200);
},
methods: {
toast(title) {
uni.showToast({
title: title || '出错啦~',
icon: 'none'
});
},
async compressImage(url, width, height) {
let imgUrl = url;
if (~imgUrl.indexOf('https:')) {
imgUrl = await this.getLocalImage(url);
if (!imgUrl) {
this.toast('网络图片处理失败~');
return;
}
}
let defaultAngle =
{
up: 0,
down: 180,
left: 270,
right: 90
}[this.orientation] || 0;
let f_dst = `_documents/${this.unique()}.jpg`;
plus.zip.compressImage(
{
src: imgUrl,
dst: f_dst,
overwrite: true,
rotate: defaultAngle,
format: 'jpg'
},
i => {
this.picturePath = i.target;
this.imgComputeSize(width, height);
if (this.limitMove) {
this.angleChange++;
this.props = `3,${this.angleChange}`;
}
},
e => {
this.picturePath = imgUrl;
this.imgComputeSize(width, height);
if (this.limitMove) {
this.angleChange++;
this.props = `3,${this.angleChange}`;
}
}
);
},
//网络图片转成本地文件[同步执行]
async getLocalImage(url) {
return await new Promise((resolve, reject) => {
uni.downloadFile({
url: url,
success: res => {
resolve(res.tempFilePath);
},
fail: res => {
reject(false);
}
});
});
},
//返回裁剪后图片信息
getImage() {
if (!this.picturePath) {
this.toast('请选择图片');
return;
}
this.loadding && this.showLoading();
let cutting = async () => {
//图片实际大小
let imgUrl = this.picturePath;
if (~this.picturePath.indexOf('https:')) {
imgUrl = await this.getLocalImage(this.picturePath);
if (!imgUrl) {
this.toast('网络图片处理失败~');
return;
}
}
let data = {
url: '',
base64: ''
};
let f_dst = `_documents/${this.unique()}.jpg`;
let multiple = Math.round(this.angle / 90);
let angle = 0,
x = 0,
y = 0,
left = 0,
top = 0,
clipHeight = 0,
clipWidth = 0;
let isAndroid = this.sysInfo.platform.toLocaleLowerCase() == 'android';
if (multiple % 2 == 0) {
angle = this.angle % 360 == 0 || this.angle == 0 ? 0 : 180;
if (!isAndroid || (isAndroid && angle == 0)) {
x = this.imgLeft - (this.imgWidth * this.scale) / 2;
y = this.imgTop - (this.imgHeight * this.scale) / 2;
left = (((this.cutX - x) / this.imgWidth / this.scale) * 100).toFixed(2);
top = (((this.cutY - y) / this.imgHeight / this.scale) * 100).toFixed(2);
clipWidth = ((this.canvasWidth / this.imgWidth / this.scale) * 100).toFixed(2);
clipHeight = ((this.canvasHeight / this.imgHeight / this.scale) * 100).toFixed(2);
} else {
x = this.imgLeft - (this.imgWidth * this.scale) / 2;
y = this.imgTop - (this.imgHeight * this.scale) / 2;
left = (((this.imgWidth * this.scale - (this.cutX - x) - this.canvasWidth) / this.imgWidth / this.scale) * 100).toFixed(2);
top = (((this.imgHeight * this.scale - (this.cutY - y) - this.canvasHeight) / this.imgHeight / this.scale) * 100).toFixed(2);
clipWidth = ((this.canvasWidth / this.imgWidth / this.scale) * 100).toFixed(2);
clipHeight = ((this.canvasHeight / this.imgHeight / this.scale) * 100).toFixed(2);
}
} else {
angle = this.angle % 270 == 0 ? 270 : 90;
if (isAndroid) {
if (angle == 90) {
x = this.imgLeft - (this.imgHeight * this.scale) / 2;
y = this.imgTop - (this.imgWidth * this.scale) / 2;
top = (((this.imgHeight * this.scale - (this.cutX - x) - this.canvasHeight) / this.imgHeight / this.scale) * 100).toFixed(2);
left = (((this.imgWidth * this.scale - (this.cutY - y) - this.canvasWidth) / this.imgWidth / this.scale) * 100).toFixed(2);
clipHeight = ((this.canvasWidth / this.imgHeight / this.scale) * 100).toFixed(2);
clipWidth = ((this.canvasHeight / this.imgWidth / this.scale) * 100).toFixed(2);
} else {
x = this.imgLeft - (this.imgHeight * this.scale) / 2;
y = this.imgTop - (this.imgWidth * this.scale) / 2;
top = (((this.cutX - x) / this.imgHeight / this.scale) * 100).toFixed(2);
left = (((this.cutY - y) / this.imgWidth / this.scale) * 100).toFixed(2);
clipHeight = ((this.canvasWidth / this.imgHeight / this.scale) * 100).toFixed(2);
clipWidth = ((this.canvasHeight / this.imgWidth / this.scale) * 100).toFixed(2);
}
} else {
x = this.imgLeft - (this.imgHeight * this.scale) / 2;
y = this.imgTop - (this.imgWidth * this.scale) / 2;
left = (((this.cutX - x) / this.imgHeight / this.scale) * 100).toFixed(2);
top = (((this.cutY - y) / this.imgWidth / this.scale) * 100).toFixed(2);
clipWidth = ((this.canvasWidth / this.imgHeight / this.scale) * 100).toFixed(2);
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>