template-project/pagesA/picture-cut/picture-cut.vue

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<template>
<view class="wrapper">
<view class="model" v-show="model">
<view class="model-show" @click="model = false">
<img :src="modelSrc" alt="" @click="model = false">
</view>
</view>
<view class="content">
<h1><a class="title" href="https://github.com/xyxiao001/vue-cropper" target="_blank">vue-cropper</a></h1>
<iframe
src="https://ghbtns.com/github-btn.html?user=xyxiao001&repo=vue-cropper&type=star&count=true&size=large"
frameborder="0" scrolling="0" width="160px" height="30px"></iframe>
<view class="show-info">
<h2>install</h2>
<codes>
<view slot="body">{{ code0 }}</view>
</codes>
</view>
<view class="show-info">
<h2>example1 基本例子 无限制</h2>
<view class="test test1">
<vueCropper ref="cropper" :img="option.img" :outputSize="option.size"
:outputType="option.outputType" :info="true" :full="option.full" :canMove="option.canMove"
:canMoveBox="option.canMoveBox" :fixedBox="option.fixedBox" :original="option.original"
:autoCrop="option.autoCrop" :autoCropWidth="option.autoCropWidth"
:autoCropHeight="option.autoCropHeight" :centerBox="option.centerBox" :high="option.high"
:infoTrue="option.infoTrue" :maxImgSize="option.maxImgSize" @realTime="realTime"
@imgLoad="imgLoad" @cropMoving="cropMoving" :enlarge="option.enlarge" :mode="option.mode"
:limitMinSize="option.limitMinSize"></vueCropper>
</view>
<view class="test-button">
<button @click="changeImg" class="btn">changeImg</button>
<label class="btn" for="uploads">upload</label>
<input type="file" id="uploads" style="position:absolute; clip:rect(0 0 0 0);"
accept="image/png, image/jpeg, image/gif, image/jpg" @change="uploadImg($event, 1)"
ref="uploadImg">
<button @click="startCrop" v-if="!crap" class="btn">start</button>
<button @click="stopCrop" v-else class="btn">stop</button>
<button @click="clearCrop" class="btn">clear</button>
<button @click="refreshCrop" class="btn">refresh</button>
<button @click="changeScale(1)" class="btn">+</button>
<button @click="changeScale(-1)" class="btn">-</button>
<button @click="rotateLeft" class="btn">rotateLeft</button>
<button @click="rotateRight" class="btn">rotateRight</button>
<button @click="finish('base64')" class="btn">preview(base64)</button>
<button @click="finish('blob')" class="btn">preview(blob)</button>
<button @click="() => option.img = ''" class="btn">清除图片</button>
<a @click="down('base64')" class="btn">download(base64)</a>
<a @click="down('blob')" class="btn">download(blob)</a>
<a :href="downImg" download="demo.png" ref="downloadDom"></a>
</view>
<view class="pre">
<!-- <section class="pre-item">
<p>固定大小 固定宽度100px</p>
<section v-html="previews.html"></section>
</section> -->
<section class="pre-item">
<p>截图框大小</p>
<view class="show-preview" :style="{'width': previews.w + 'px', 'height': previews.h + 'px', 'overflow': 'hidden',
'margin': '5px'}">
<view :style="previews.view">
<img :src="previews.url" :style="previews.img">
</view>
</view>
</section>
<section class="pre-item">
<p>中等大小</p>
<view :style="previewStyle1">
<view :style="previews.view">
<img :src="previews.url" :style="previews.img">
</view>
</view>
</section>
<section class="pre-item">
<p>迷你大小</p>
<view :style="previewStyle2">
<view :style="previews.view">
<img :src="previews.url" :style="previews.img">
</view>
</view>
</section>
<section class="pre-item" title="zoom: (100 / previews.w)">
<p>固定为100宽度</p>
<view :style="previewStyle3">
<view :style="previews.view">
<img :src="previews.url" :style="previews.img">
</view>
</view>
</section>
<section class="pre-item" title="zoom: (100 / previews.h)">
<p>固定为100高度</p>
<view :style="previewStyle4">
<view :style="previews.view">
<img :src="previews.url" :style="previews.img">
</view>
</view>
</section>
</view>
<view style="display:block; width: 100%;">
<label class="c-item">
<span>图片默认渲染方式</span>
<select v-model="option.mode">
<option value="contain">contain</option>
<option value="cover">cover</option>
<option value="400px auto">400px auto</option>
<option value="auto 400px">auto 400px</option>
<option value="50%">50%</option>
<option value="auto 50%">auto 50%</option>
</select>
<section>
类似css background属性设置 设置不符合规范不生效 参照文档说明
</section>
</label>
<!-- <label class="c-item">
<span>截图框最小限制 </span>
<input type="text" v-model="option.limitMinSize">
</label> -->
<label class="c-item">
<span>上传时图片最大大小(默认会压缩尺寸到这个大小)</span>
<input type="nubmer" v-model="option.maxImgSize">
</label>
<label class="c-item">
<span>上传图片是否显示原始宽高 (针对大图 可以铺满)</span>
<input type="checkbox" v-model="option.original">
<span>original: {{ option.original}}</span>
</label>
<label class="c-item">
<span>是否根据dpr生成适合屏幕的高清图片</span>
<input type="checkbox" v-model="option.high">
<span>high: {{ option.high}}</span>
</label>
<label class="c-item">
<span>是否输出原图比例的截图</span>
<input type="checkbox" v-model="option.full">
<span>full: {{ option.full}}</span>
</label>
<label class="c-item">
<span>截图信息展示是否是真实的输出宽高</span>
<input type="checkbox" v-model="option.infoTrue">
<span>infoTrue: {{ option.infoTrue}}</span>
</label>
<label class="c-item">
<span>能否拖动图片</span>
<input type="checkbox" v-model="option.canMove">
<span>canMove: {{ option.canMove}}</span>
</label>
<label class="c-item">
<span>能否拖动截图框</span>
<input type="checkbox" v-model="option.canMoveBox">
<span>canMoveBox: {{ option.canMoveBox}}</span>
</label>
<label class="c-item">
<span>截图框固定大小</span>
<input type="checkbox" v-model="option.fixedBox">
<span>fixedBox: {{ option.fixedBox}}</span>
</label>
<label class="c-item">
<span>是否自动生成截图框</span>
<input type="checkbox" v-model="option.autoCrop">
<span>autoCrop: {{ option.autoCrop}}</span>
</label>
<label class="c-item">
<span>自动生成截图框的宽高</span>
<span>宽度: </span><input type="number" v-model="option.autoCropWidth">
<span>高度: </span><input type="number" v-model="option.autoCropHeight">
</label>
<label class="c-item">
<span>截图框是否限制在图片里(只有在自动生成截图框时才能生效)</span>
<input type="checkbox" v-model="option.centerBox">
<span>centerBox: {{ option.centerBox}}</span>
</label>
<label class="c-item">
<span>是否按照截图框比例输出 默认为1 </span>
<input type="number" v-model="option.enlarge">
</label>
<p>输出图片格式</p>
<label class="c-item">
<label>jpg <input type="radio" name="type" value="jpeg" v-model="option.outputType"></label>
<label>png <input type="radio" name="type" value="png" v-model="option.outputType"></label>
<label>webp <input type="radio" name="type" value="webp" v-model="option.outputType"></label>
</label>
</view>
<codes>
<view slot="body">{{ code1 }}</view>
</codes>
</view>
</view>
</view>
</template>
<script>
import VueCropper from "@/components/picture-cut/vue-cropper/vue-cropper.vue";
// import { VueCropper } from '../test'
import codes from "@/components/picture-cut/code.vue";
export default {
data: function() {
return {
model: false,
modelSrc: "",
crap: false,
previews: {},
lists: [
// {
// img: 'https://fengyuanchen.github.io/cropper/images/picture.jpg'
// },
{
img: "https://avatars2.githubusercontent.com/u/15681693?s=460&v=4"
},
{
img: "http://cdn.xyxiao.cn/Landscape_1.jpg"
},
{
img: "http://cdn.xyxiao.cn/Landscape_2.jpg"
},
{
img: "http://cdn.xyxiao.cn/Landscape_3.jpg"
},
{
img: "http://cdn.xyxiao.cn/Landscape_4.jpg"
},
{
img: "http://cdn.xyxiao.cn/Portrait_1.jpg"
},
{
img: "http://cdn.xyxiao.cn/Portrait_2.jpg"
}
],
option: {
img: "",
size: 1,
full: false,
outputType: "png",
canMove: true,
fixedBox: false,
original: false,
canMoveBox: true,
autoCrop: true,
// 只有自动截图开启 宽度高度才生效
autoCropWidth: 200,
autoCropHeight: 150,
centerBox: false,
high: false,
cropData: {},
enlarge: 1,
mode: 'contain',
maxImgSize: 3000,
limitMinSize: [100, 120]
},
example2: {
img: "http://cdn.xyxiao.cn/Landscape_2.jpg",
info: true,
size: 1,
outputType: "jpeg",
canScale: true,
autoCrop: true,
// 只有自动截图开启 宽度高度才生效
autoCropWidth: 300,
autoCropHeight: 250,
fixed: true,
// 真实的输出宽高
infoTrue: true,
fixedNumber: [4, 3]
},
example3: {
img: "http://cdn.xyxiao.cn/Landscape_1.jpg",
autoCrop: true,
autoCropWidth: 200,
autoCropHeight: 200,
fixedBox: true
},
downImg: "#",
previewStyle1: {},
previewStyle2: {},
previewStyle3: {},
previewStyle4: {},
code0: '',
code1: '',
code2: '',
code3: '',
preview3: '',
};
},
methods: {
changeImg() {
this.option.img = this.lists[~~(Math.random() * this.lists.length)].img;
},
startCrop() {
// start
this.crap = true;
this.$refs.cropper.startCrop();
},
stopCrop() {
// stop
this.crap = false;
this.$refs.cropper.stopCrop();
},
clearCrop() {
// clear
this.$refs.cropper.clearCrop();
},
refreshCrop() {
// clear
this.$refs.cropper.refresh();
},
changeScale(num) {
num = num || 1;
this.$refs.cropper.changeScale(num);
},
rotateLeft() {
this.$refs.cropper.rotateLeft();
},
rotateRight() {
this.$refs.cropper.rotateRight();
},
finish(type) {
// 输出
// var test = window.open('about:blank')
// test.document.body.innerHTML = '图片生成中..'
if (type === "blob") {
this.$refs.cropper.getCropBlob(data => {
var img = window.URL.createObjectURL(data);
this.model = true;
this.modelSrc = img;
});
} else {
this.$refs.cropper.getCropData(data => {
this.model = true;
this.modelSrc = data;
});
}
},
// 实时预览函数
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
};
this.previewStyle3 = {
width: previews.w + "px",
height: previews.h + "px",
overflow: "hidden",
margin: "0",
zoom: (100 / previews.w)
};
this.previewStyle4 = {
width: previews.w + "px",
height: previews.h + "px",
overflow: "hidden",
margin: "0",
zoom: (100 / previews.h)
};
this.previews = data;
},
finish2(type) {
this.$refs.cropper2.getCropData(data => {
this.model = true;
this.modelSrc = data;
});
},
finish3(type) {
this.$refs.cropper3.getCropData(data => {
this.model = true;
this.modelSrc = data;
});
},
down(type) {
// event.preventDefault()
// 输出
if (type === "blob") {
this.$refs.cropper.getCropBlob(data => {
this.downImg = window.URL.createObjectURL(data);
if (window.navigator.msSaveBlob) {
var blobObject = new Blob([data]);
window.navigator.msSaveBlob(blobObject, "demo.png");
} else {
this.$nextTick(() => {
this.$refs.downloadDom.click();
});
}
});
} else {
this.$refs.cropper.getCropData(data => {
this.downImg = data;
if (window.navigator.msSaveBlob) {
var blobObject = new Blob([data]);
window.navigator.msSaveBlob(blobObject, "demo.png");
} else {
this.$nextTick(() => {
this.$refs.downloadDom.click();
});
}
});
}
},
uploadImg(e, num) {
//上传图片
// this.option.img
var file = e.target.files[0];
if (!/\.(gif|jpg|jpeg|png|bmp|GIF|JPG|PNG)$/.test(e.target.value)) {
alert("图片类型必须是.gif,jpeg,jpg,png,bmp中的一种");
return false;
}
var reader = new FileReader();
reader.onload = e => {
let data;
if (typeof e.target.result === "object") {
// 把Array Buffer转化为blob 如果是base64不需要
data = window.URL.createObjectURL(new Blob([e.target.result]));
} else {
data = e.target.result;
}
if (num === 1) {
this.option.img = data;
} else if (num === 2) {
this.example2.img = data;
}
this.$refs.uploadImg.value = ''
};
// 转化为base64
// reader.readAsDataURL(file)
// 转化为blob
reader.readAsArrayBuffer(file);
},
imgLoad(msg) {
console.log(msg);
},
cropMoving(data) {
this.option.cropData = data;
}
},
components: {
VueCropper,
codes
},
mounted() {
this.changeImg();
// hljs.configure({useBR: true})
var list = [].slice.call(document.querySelectorAll("pre code"));
list.forEach((val, index) => {
hljs.highlightBlock(val);
});
// console.log(this.$refs.cropper)
this.code0 = `
npm install vue-cropper
// 组件内使用
import { VueCropper } from 'vue-cropper'
components: {
VueCropper,
},
// main.js里面使用
import VueCropper from 'vue-cropper'
Vue.use(VueCropper)
// cdn方式使用
<script src="vuecropper.js">\<\/script>
Vue.use(window['vue-cropper'])
<vueCropper
ref="cropper"
:img="option.img"
:outputSize="option.size"
:outputType="option.outputType"
></vueCropper>
`
this.code1 = `
<view class="show-info">
<h2>example1 基本例子 无限制</h2>
<view class="test test1">
<vueCropper
ref="cropper"
:img="option.img"
:outputSize="option.size"
:outputType="option.outputType"
:info="true"
:full="option.full"
:canMove="option.canMove"
:canMoveBox="option.canMoveBox"
:fixedBox="option.fixedBox"
:original="option.original"
:autoCrop="option.autoCrop"
:autoCropWidth="option.autoCropWidth"
:autoCropHeight="option.autoCropHeight"
:centerBox="option.centerBox"
:high="option.high"
:infoTrue="option.infoTrue"
@realTime="realTime"
@imgLoad="imgLoad"
@cropMoving="cropMoving"
:enlarge="option.enlarge"
></vueCropper>
</view>
<view class="test-button">
<button @click="changeImg" class="btn">changeImg</button>
<label class="btn" for="uploads">upload</label>
<input type="file" id="uploads" style="position:absolute; clip:rect(0 0 0 0);" accept="image/png, image/jpeg, image/gif, image/jpg" @change="uploadImg($event, 1)">
<button @click="startCrop" v-if="!crap" class="btn">start</button>
<button @click="stopCrop" v-else class="btn">stop</button>
<button @click="clearCrop" class="btn">clear</button>
<button @click="refreshCrop" class="btn">refresh</button>
<button @click="changeScale(1)" class="btn">+</button>
<button @click="changeScale(-1)" class="btn">-</button>
<button @click="rotateLeft" class="btn">rotateLeft</button>
<button @click="rotateRight" class="btn">rotateRight</button>
<button @click="finish('base64')" class="btn">preview(base64)</button>
<button @click="finish('blob')" class="btn">preview(blob)</button>
<a @click="down('base64')" class="btn">download(base64)</a>
<a @click="down('blob')" class="btn">download(blob)</a>
<a :href="downImg" download="demo.png" ref="downloadDom"></a>
</view>
<p>截图框大小</p>
<view class="show-preview" :style="{'width': previews.w + 'px', 'height': previews.h + 'px', 'overflow': 'hidden',
'margin': '5px'}">
<view :style="previews.view">
<img :src="previews.url" :style="previews.img">
</view>
</view>
<p>中等大小</p>
<view :style="previewStyle1">
<view :style="previews.view">
<img :src="previews.url" :style="previews.img">
</view>
</view>
<p>迷你大小</p>
<view :style="previewStyle2">
<view :style="previews.view">
<img :src="previews.url" :style="previews.img">
</view>
</view>
<view style="display:block; width: 100%;">
<label class="c-item">
<span>上传图片是否显示原始宽高 (针对大图 可以铺满)</span>
<input type="checkbox" v-model="option.original">
<span>original: {{ option.original}}</span>
</label>
<label class="c-item">
<span>是否根据dpr生成适合屏幕的高清图片</span>
<input type="checkbox" v-model="option.high">
<span>high: {{ option.high}}</span>
</label>
<label class="c-item">
<span>是否输出原图比例的截图</span>
<input type="checkbox" v-model="option.full">
<span>full: {{ option.full}}</span>
</label>
<label class="c-item">
<span>截图信息展示是否是真实的输出宽高</span>
<input type="checkbox" v-model="option.infoTrue">
<span>infoTrue: {{ option.infoTrue}}</span>
</label>
<label class="c-item">
<span>能否拖动图片</span>
<input type="checkbox" v-model="option.canMove">
<span>canMove: {{ option.canMove}}</span>
</label>
<label class="c-item">
<span>能否拖动截图框</span>
<input type="checkbox" v-model="option.canMoveBox">
<span>canMoveBox: {{ option.canMoveBox}}</span>
</label>
<label class="c-item">
<span>截图框固定大小</span>
<input type="checkbox" v-model="option.fixedBox">
<span>fixedBox: {{ option.fixedBox}}</span>
</label>
<label class="c-item">
<span>是否自动生成截图框</span>
<input type="checkbox" v-model="option.autoCrop">
<span>autoCrop: {{ option.autoCrop}}</span>
</label>
<label class="c-item">
<span>截图框是否限制在图片里(只有在自动生成截图框时才能生效)</span>
<input type="checkbox" v-model="option.centerBox">
<span>centerBox: {{ option.centerBox}}</span>
</label>
<label class="c-item">
<span>是否按照截图框比例输出 默认为1 </span>
<input type="number" v-model="option.enlarge">
</label>
<p>输出图片格式</p>
<label class="c-item">
<label>jpg <input type="radio" name="type" value="jpeg" v-model="option.outputType"></label>
<label>png <input type="radio" name="type" value="png" v-model="option.outputType"></label>
<label>webp <input type="radio" name="type" value="webp" v-model="option.outputType"></label>
</label>
</view>
<codes>
<view slot="body">{{ code1 }}</view>
</codes>
</view>
`
}
};
</script>
<style>
* {
margin: 0;
padding: 0;
}
.content {
margin: auto;
max-width: 1200px;
margin-bottom: 100px;
}
.test-button {
display: flex;
flex-wrap: wrap;
}
.btn {
display: inline-block;
line-height: 1;
white-space: nowrap;
cursor: pointer;
background: #fff;
border: 1px solid #c0ccda;
color: #1f2d3d;
text-align: center;
box-sizing: border-box;
outline: none;
margin: 20px 10px 0px 0px;
padding: 9px 15px;
font-size: 14px;
border-radius: 4px;
color: #fff;
background-color: #50bfff;
border-color: #50bfff;
transition: all 0.2s ease;
text-decoration: none;
user-select: none;
}
.des {
line-height: 30px;
}
code.language-html {
padding: 10px 20px;
margin: 10px 0px;
display: block;
background-color: #333;
color: #fff;
overflow-x: auto;
font-family: Consolas, Monaco, Droid, Sans, Mono, Source, Code, Pro, Menlo,
Lucida, Sans, Type, Writer, Ubuntu, Mono;
border-radius: 5px;
white-space: pre;
}
.show-info {
margin-bottom: 50px;
}
.show-info h2 {
line-height: 50px;
}
/*.title, .title:hover, .title-focus, .title:visited {
color: black;
}*/
.title {
display: block;
text-decoration: none;
text-align: center;
line-height: 1.5;
margin: 20px 0px;
background-image: -webkit-linear-gradient(left,
#3498db,
#f47920 10%,
#d71345 20%,
#f7acbc 30%,
#ffd400 40%,
#3498db 50%,
#f47920 60%,
#d71345 70%,
#f7acbc 80%,
#ffd400 90%,
#3498db);
color: transparent;
-webkit-background-clip: text;
background-size: 200% 100%;
animation: slide 5s infinite linear;
font-size: 40px;
}
.test {
height: 500px;
}
.model {
position: fixed;
z-index: 10;
width: 100vw;
height: 100vh;
overflow: auto;
top: 0;
left: 0;
background: rgba(0, 0, 0, 0.8);
}
.model-show {
display: flex;
justify-content: center;
align-items: center;
width: 100vw;
height: 100vh;
text-align: center;
}
.model img {
display: block;
margin: auto;
max-width: 80%;
width: auto;
user-select: none;
background-position: 0px 0px, 10px 10px;
background-size: 20px 20px;
background-image: linear-gradient(45deg,
#eee 25%,
transparent 25%,
transparent 75%,
#eee 75%,
#eee 100%),
linear-gradient(45deg, #eee 25%, white 25%, white 75%, #eee 75%, #eee 100%);
}
.c-item {
display: block;
padding: 10px 0;
user-select: none;
}
.pre {
display: flex;
flex-wrap: wrap;
}
.pre-item {
padding-right: 20px;
}
@keyframes slide {
0% {
background-position: 0 0;
}
100% {
background-position: -100% 0;
}
}
@media screen and (max-width: 1000px) {
.content {
max-width: 90%;
margin: auto;
}
.test {
height: 400px;
}
}
</style>