php jcrop插件+php实现的图片上传与裁剪
jcrop插件+php实现的图片上传与裁剪 [代码片段(125行)]
<?php
error_reporting(7);
date_default_timezone_set("Asia/Shanghai");
header("Content-type:text/html; Charset=utf-8");
require_once("./image.class.php");
$images = new Images("file");
if ($_GET['act'] == 'cut'){
$image = "0000.jpg";
$res = $images->thumb($image,false,1);
if($res == false){
echo "裁剪失败";
}elseif(is_array($res)){
echo '<img src="'.$res['big'].'" style="margin:10px;">';
echo '<img src="'.$res['small'].'" style="margin:10px;">';
}elseif(is_string($res)){
echo '<img src="'.$res.'">';
}
}elseif(isset($_GET['act']) && $_GET['act'] == "upload"){
$path = $images->move_uploaded();
$images->thumb($path,false,0); //文件比规定的尺寸大则生成缩略图，小则保持原样
if($path == false){
$images->get_errMsg();
}else{
echo "上传成功！<a href='".$path."' target='_blank'>查看</a>";
}
}else{
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "<a href="http://www.w3.org/TR/html4/loose.dtd">http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta name="Author" content="SeekEver">
<meta name="Keywords" content="">
<meta name="Description" content="">
<meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
<script src="./js/jquery.min.js" type="text/javascript"></script>
<script src="./js/jquery.Jcrop.js" type="text/javascript"></script>
<link rel="stylesheet" href="./css/jquery.Jcrop.css" type="text/css" />
<script type="text/javascript">
jQuery(function($){
// Create variables (in this scope) to hold the API and image size
var jcrop_api, boundx, boundy;
$('#target').Jcrop({
minSize: [48,48],
setSelect: [0,0,190,190],
onChange: updatePreview,
onSelect: updatePreview,
onSelect: updateCoords,
aspectRatio: 1
},
function(){
// Use the API to get the real image size
var bounds = this.getBounds();
boundx = bounds[0];
boundy = bounds[1];
// Store the API in the jcrop_api variable
jcrop_api = this;
});
function updateCoords(c)
{
$('#x').val(c.x);
$('#y').val(c.y);
$('#w').val(c.w);
$('#h').val(c.h);
};
function checkCoords()
{
if (parseInt($('#w').val())) return true;
alert('Please select a crop region then press submit.');
return false;
};
function updatePreview(c){
if (parseInt(c.w) > 0)
{
var rx = 48 / c.w; //小头像预览Div的大小
var ry = 48 / c.h;
$('#preview').css({
width: Math.round(rx * boundx) + 'px',
height: Math.round(ry * boundy) + 'px',
marginLeft: '-' + Math.round(rx * c.x) + 'px',
marginTop: '-' + Math.round(ry * c.y) + 'px'
});
}
{
var rx = 199 / c.w; //大头像预览Div的大小
var ry = 199 / c.h;
$('#preview2').css({
width: Math.round(rx * boundx) + 'px',
height: Math.round(ry * boundy) + 'px',
marginLeft: '-' + Math.round(rx * c.x) + 'px',
marginTop: '-' + Math.round(ry * c.y) + 'px'
});
}
};
});
</script>
</head>
<body>
<form method="post" action="?act=upload" enctype="multipart/form-data">
<input type="file" name="file">
<input type="submit" value="上传">
</form>
<div style="float:left;"><img id="target" src="0000.jpg" ></div>
<div style="width:48px;height:48px;margin:10px;overflow:hidden; float:left;"><img style="float:left;" id="preview" src="0000.jpg" ></div>
<div style="width:190px;height:195px;margin:10px;overflow:hidden; float:left;"><img style="float:left;" id="preview2" src="0000.jpg" ></div>
<form action="index.php?act=cut" method="post" onsubmit="return checkCoords();">
<input type="hidden" id="x" name="x" />
<input type="hidden" id="y" name="y" />
<input type="hidden" id="w" name="w" />
<input type="hidden" id="h" name="h" />
<input type="submit" value="裁剪" />
</form>
</body>
</html>
<?php
}
?>
//该片段来自于http://outofmemory.cn
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