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index.html
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<!DOCTYPE html>
<html>
<head>
<title>切图仔</title>
<meta charset="utf-8">
<link rel="stylesheet" href="bower_components/bootstrap/dist/css/bootstrap.min.css">
<link rel="stylesheet" href="css/loader.css">
<style>
.row {
margin-top: 20px;
}
.thumbnail {
height: 250px;
overflow: hidden;
background: #eee
}
.check{position: absolute;top:3px;left:22px;}
#dropzone {
border: 1px dashed #ccc;
padding: 50px 0;
text-align: center;
border-radius: 5px
}
#export_all {
margin-right: 20px;
}
#footer {
text-align: center
}
#loading {
display: none;
position: absolute;
left: 0;
top: 0;
background: rgba(0, 0, 0, .5);
width: 100%;
height: 100%
}
.loader {
position: absolute;
left: 50%;
top: 50%;
}
</style>
</head>
<body>
<div class="container">
<!-- 拖拽 -->
<div class="row">
<div class="col-md-12">
<p>
切图仔demo版 by <a href="https://github.com/littleshe">littleshe</a>，转载请保留信息</p>
<p>感谢<a href="https://github.com/meltingice/psd.js">psd.js</a>
</p>
<div id="dropzone">
<h3>请拖个psd进来</h3>
</div>
</div>
</div>
<!-- 表单 -->
<div class="row">
<form class="col-md-12">
<button id="export_all" class="btn btn-default btn-lg" type="button">导出选中图层</button>
<span class="psd_info"></span>
<label>
<input type="checkbox" id="check23">
@2x和@3x切图</label>
</form>
</div>
<!-- 图层 -->
<div class="row" id="layer"></div>
<div id="loading">
<span class="loader loader-bars"><span></span></span>
</div>
</div>
<script type="text/template" id="layer-tpl">
{{each layers as el i}}
<div class="col-xs-6 col-md-3" idx="{{i}}">
<a class="thumbnail" title="{{el.name}}" download="{{el.name}}" href="{{el.src}}" target="_blank">
<img src="{{el.src}}">
</a>
<input type="checkbox" checked="{{el.checked}}" class="check">
</div>
{{/each}}
</script>
<script src="bower_components/jquery/dist/jquery.min.js"></script>
<script type="text/javascript" src="lib/psd.min.js"></script>
<script type="text/javascript" src="lib/zip.min.js"></script>
<script type="text/javascript" src="lib/filesaver.js"></script>
<script type="text/javascript" src="lib/template.js"></script>
<script type="text/javascript">
(function () {
var PSD = require('psd')
var layers = []
var dropArea = $('#dropzone')[0]
var exportBtn = $('#export_all')
var layerArea = $('#layer')
var checkBtn = $('#check23')
var loading = $('#loading')
dropArea.addEventListener('dragover', onDragOver, true);
dropArea.addEventListener('drop', onDrop,true)
layerArea.on('change','.check',selectItem)
exportBtn.on('click',exportAll)
function onDragOver(e) {
e.stopPropagation()
e.preventDefault()
e.dataTransfer.dropEffect = 'copy'
}
function onDrop(e) {
e.stopPropagation();
e.preventDefault();
loading.show()
PSD.fromEvent(e).then(function (psd) {
psd.tree().descendants().forEach(function (node) {
if (node.isGroup()) {
return
}
var img = node.toPng()
var imgSrc = img.src
var imgData = {
name: node.name,
img: img,
src: imgSrc,
base64: getBase64(imgSrc),
width: node.width,
height: node.height,
checked: true
}
layers.push(imgData)
});
render({layers:layers})
setTimeout(function () {
loading.hide()
}, 1)
});
}
function getBase64(src){
return src.replace('data:image/png;base64,', '')
}
function getScaleImgData(img,radio){
var img_width = img.width*radio
var img_height = img.height*radio
var canvas = document.createElement('canvas')
canvas.width = img_width
canvas.height = img_height
canvas.getContext('2d').drawImage(img, 0, 0, img_width, img_height)
return getBase64(canvas.toDataURL('image/png'))
}
function render(data) {
layerArea.html(template('layer-tpl', data))
}
function selectItem(){
var index = $(this).parent('div').attr('idx')
layers[index].checked = this.checked
}
function exportAll() {
if(layers.length == 0) return
var export_flag = checkBtn.prop('checked')
var zip = new JSZip();
layers.forEach(function (node) {
if(node.checked){
if(export_flag){
zip.file(node.name + '@3x.png', node.base64, {base64: true});
zip.file(node.name + '@2x.png', getScaleImgData(node.img,2/3), {base64: true});
}else{
zip.file(node.name + '.png', node.base64, {base64: true});
}
}
})
zip.generateAsync({type: "blob"}).then(function (content) {
saveAs(content, "images.zip");
});
}
}());
</script>
</body>
</html>