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index.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<script type="text/javascript" src="https://cdn.staticfile.org/touchjs/0.2.14/touch.min.js"></script>
<script type="text/javascript" src="https://libs.baidu.com/jquery/1.9.0/jquery.min.js"></script>
<script src="./js/index.js"></script>
<script type="text/javascript">
if(/Android (\d+\.\d+)/.test(navigator.userAgent)){
var version = parseFloat(RegExp.$1);
if(version>2.3){
var phoneScale = parseInt(window.screen.width)/750;
document.write('<meta name="viewport" content="width=750, minimum-scale = '+ phoneScale +', maximum-scale = '+ phoneScale +', target-densitydpi=device-dpi">');
}else{
document.write('<meta name="viewport" content="width=750, target-densitydpi=device-dpi">');
}
}else{
document.write('<meta name="viewport" content="width=750, user-scalable=no, target-densitydpi=device-dpi">');
}
</script>
<script type="text/javascript">
window.onload = function () {
var canvasBox = document.querySelector('#picBox');
var canvas = new _Canvas({
box: canvasBox, // 容器
bgColor: '#000', // 背景色
bgPhoto: 'none', // 背景图
photoModel: 'adaption', // 载入图片模式(设置后添加图片时默认为当前设置模式)
model: 'Cascade' // 编辑模式
})
var timer;
canvas.init({
dragEvent: function (e1, e2) {
clearTimeout(timer);
$('.event').text('当前操作事件：正在拖拽');
timer = setTimeout(function () {
$('.event').text('当前操作事件：无操作');
}, 10)
},
zoomEvent: function (e1, e2) {
clearTimeout(timer);
$('.event').text('当前操作事件：正在缩放');
timer = setTimeout(function () {
$('.event').text('当前操作事件：无操作');
}, 10)
},
rotateEvent: function (e1, e2) {
clearTimeout(timer);
$('.event').text('当前操作事件：正在旋转');
timer = setTimeout(function () {
$('.event').text('当前操作事件：无操作');
}, 10)
},
callback: function () {
console.log('图片初始化完成...')
}
});
// 添加或移除背景图
var changeBgFlag = false;
$('.changeBg').click(function () {
if (!changeBgFlag) {
canvas.changeBg({
photo: './img/pic2.jpg'
})
} else {
canvas.changeBg({
photo: 'none'
})
}
changeBgFlag = !changeBgFlag;
})
// 修改背景色
$('.bgColor').click(function () {
var color = '#' + parseInt(Math.random() * 10) + parseInt(Math.random() * 10) + parseInt(Math.random() * 10)
canvas.changeBg({
photo: 'none',
color: color
})
})
// 添加一张满屏的图片
$('.addFullPic').click(function () {
canvas.addPhoto({
url: './img/pic3.jpg',
model: 'covered',
callback: function () {
console.log('成功加一张满屏的图片')
}
})
})
// 添加一张自适应的图片
$('.addAutoPic').click(function () {
canvas.addPhoto({
url: './img/pic4.jpg',
model: 'adaption',
callback: function () {
console.log('成功添加一张自适应的图片')
}
})
})
// 添加一张200px的图片
$('.addFixedPic').click(function () {
canvas.addPhoto({
url: './img/pic5.jpg',
model: 200,
callback: function () {
console.log('成功添加200px的图片')
}
})
})
// 添加一张禁止编辑的图片
$('.addEnablePic').click(function () {
canvas.addPhoto({
url: './img/pic6.jpg',
model: 200,
enable: true,
callback: function () {
console.log('成功添加一张禁止编辑的图片')
}
})
})
// 添加本地图片
$('.file').change(function () {
canvas.addPhoto({
url: getUrl(this.files[0]),
model: 200,
callback: function () {
console.log('成功添加本地图片')
}
})
})
// 获取最底层的图片并提升到最高
$('.changeHierarchy').click(function () {
canvas.photos[0].changeInfo({
hierarchy: 1000,
callback: function () {
console.log('成功获取最底层的图片并提升到最高')
}
})
})
// Cascade模式<
$('.CascadeModel').click(function () {
canvas.changeParams({
model: 'Cascade'
})
$('.nowModel').text('Cascade模式')
console.log('成功切换到Cascade模式')
})
// autoHierarchy模式
$('.autoHierarchyModel').click(function () {
canvas.changeParams({
model: 'autoHierarchy'
})
$('.nowModel').text('autoHierarchy模式')
console.log('成功切换autoHierarchy模式')
})
// 获取当前图片信息
$('.getPhotoInfo').click(function () {
var nowPhoto = canvas.getNowPhoto();
if (!nowPhoto) {
alert('未选中任何图片');
return;
} else {
var nowPhotoInfo = nowPhoto.getPhotoInfo();
$('.photoInfo').val(JSON.stringify(nowPhotoInfo))
}
})
// 旋转
$('.rotate').click(function () {
var nowPhoto = canvas.getNowPhoto();
if (!nowPhoto) {
alert('未选中任何图片');
return;
} else {
var nowPhotoInfo = nowPhoto.getPhotoInfo();
nowPhoto.changeInfo({
rotate: nowPhotoInfo.rotate + 90,
callback: function () {
console.log('成功旋转')
}
})
}
})
// 放大
$('.enlarge').click(function () {
var nowPhoto = canvas.getNowPhoto();
if (!nowPhoto) {
alert('未选中任何图片');
return;
} else {
var nowPhotoInfo = nowPhoto.getPhotoInfo();
nowPhoto.changeInfo({
scale: nowPhotoInfo.scale * 1.1,
callback: function () {
console.log('成功放大')
}
})
}
})
// 缩小
$('.narrow').click(function () {
var nowPhoto = canvas.getNowPhoto();
if (!nowPhoto) {
alert('未选中任何图片');
return;
} else {
var nowPhotoInfo = nowPhoto.getPhotoInfo();
nowPhoto.changeInfo({
scale: nowPhotoInfo.scale / 1.1,
callback: function () {
console.log('成功缩小')
}
})
}
})
// 更换url
$('.changeUrl').click(function () {
var nowPhoto = canvas.getNowPhoto();
if (!nowPhoto) {
alert('未选中任何图片');
return;
} else {
var nowPhotoInfo = nowPhoto.getPhotoInfo();
nowPhoto.changeInfo({
img: './img/pic7.jpg',
callback: function () {
console.log('成功更换url')
}
})
}
})
// 重置
$('.autoScale').click(function () {
var nowPhoto = canvas.getNowPhoto();
if (!nowPhoto) {
alert('未选中任何图片');
return;
} else {
var nowPhotoInfo = nowPhoto.getPhotoInfo();
nowPhoto.init(function () {
console.log('成功重置')
})
}
})
// 删除图片
$('.deletePic').click(function () {
var nowPhoto = canvas.getNowPhoto();
if (!nowPhoto) {
alert('未选中任何图片');
return;
} else {
var nowPhotoInfo = nowPhoto.getPhotoInfo();
nowPhoto._delete();
console.log('成功重置')
}
})
// 更改画布宽高
$('.changeWH1').click(function () {
canvas.changeParams({
width: 500,
height: 400
})
})
// 复原
$('.changeWH2').click(function () {
canvas.changeParams({
width: 750,
height: 600
})
})
// 清空画布
$('.clearCanvas').click(function () {
canvas.clearCanvas();
})
// 输出0.5倍图
$('.outputmodel1').click(function () {
canvas.toDataURL({
width: 375,
height: 300,
callback: function (url) {
$('.outputPic').attr('src', url);
console.log('成功输出0.5倍图')
}
})
})
// 输出1倍png图
$('.outputmodel2').click(function () {
canvas.toDataURL({
width: 750,
height: 600,
type: 'image/png',
callback: function (url) {
$('.outputPic').attr('src', url);
console.log('成功输出1倍png图')
}
})
})
// 输出2倍jpg图
$('.outputmodel3').click(function () {
canvas.toDataURL({
width: 1500,
height: 1200,
type: 'image/jpeg',
callback: function (url) {
$('.outputPic').attr('src', url);
console.log('成功输出2倍jpg图')
}
})
})
function getUrl (file) {
var url = null;
if (window.createObjectURL !== undefined) {
url = window.createObjectURL(file);
} else if (window.URL !== undefined) {
url = window.URL.createObjectURL(file);
} else if (window.webkitURL !== undefined) {
url = window.webkitURL.createObjectURL(file);
}
return url
}
}
</script>
<title>dray</title>
<style media="screen">
* {margin: 0; padding: 0}
#picBox {
width: 100%;
height: 600px;
position: fixed;
top: 0;
}
section {
padding-top: 600px;
}
.set {
font: 36px/50px "";
margin-top: 20px;
}
button {
font: 36px/50px "";
margin-bottom: 10px;
}
.photoInfo {
width: 100%;
font: 24px/50px "";
}
.outputPic {
display: block;
}
.event {
font: 20px/40px "";
color: #f00;
}
</style>
</head>
<body>
<div id="picBox">
<img src="./img/pic1.jpg" alt="" crossOrigin="anonymous">
</div>
<section>
<span>功能：支持多张图片多种模式编辑，图片四角除了一个删除，其余拖拽可缩放旋转；图片支持手势缩放旋转</span>
<span class="event">当前操作事件：无操作</span>
<div class="set">
<h3>更改背景：</h3>
<button class="changeBg">添加/移除背景</button>
<button class="bgColor">更改背景色</button>
</div>
<div class="set">
<h3>添加图片：</h3>
<p>
<button class="addFullPic">添加一张满屏的图片</button>
<button class="addAutoPic">添加一张自适应的图片</button>
<button class="addFixedPic">添加一张200px的图片</button>
<button class="addEnablePic">添加一张禁止编辑的图片</button>
</p>
<label style="border: 1px #888 solid;">
<input type="file" class="file" style="display: none;">
添加本地图片
</label>
</div>
<div class="set">
<h3>获取图片并改变层级：</h3>
<button class="changeHierarchy">获取最底层的图片并提升到最高</button>
</div>
<div class="set">
<h3>更改编辑模式：(<span class="nowModel">Cascade模式</span>)</h3>
<button class="CascadeModel">Cascade模式</button>
<button class="autoHierarchyModel">autoHierarchy模式</button>
</div>
<div class="set">
<h3>更改画布宽高：</h3>
<button class="changeWH1">500*400</button>
<button class="changeWH2">复原</button>
</div>
<div class="set">
<h3>清空画布：</h3>
<button class="clearCanvas">清空</button>
</div>
<div class="set">
<h3>更改选中图片属性：</h3>
<button class="getPhotoInfo">获取当前选中图片的位置信息</button>
<p><input type="text" class="photoInfo"></p>
<button class="rotate">旋转选中图片</button>
<button class="enlarge">放大选中图片</button>
<button class="narrow">缩小选中图片</button>
<button class="changeUrl">更改选中图片的url</button>
<button class="autoScale">重置选中图片</button>
<button class="deletePic">删除选中图片</button>
</div>
<div class="set">
<h3>输出图片：</h3>
<button class="outputmodel1">输出0.5倍图片</button>
<button class="outputmodel2">输出1倍图片</button>
<button class="outputmodel3">输出2倍图片</button>
</div>
<img src="" alt="" class="outputPic">
</section>
</body>
</html>