求教,ASP头像在线编辑
来源:互联网 发布:java web 项目 源码 编辑:程序博客网 时间:2024/05/15 04:35
我在网上下载了一个ASP的头像编辑程序。但原来的程序的剪辑框是按照图片比例进行缩放的,不知正方形的剪辑框。请问各位大侠有没有办法更改,让剪辑框成为正方形的?
五个文件的源码如下:
ImgCropper.htm
Drag.js
五个文件的源码如下:
ImgCropper.htm
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>图片切割系统</title>
</head>
<body>
<script type="text/javascript">
var isIE = (document.all) ? true : false;
var isIE6 = isIE && ([/MSIE (\d)\.0/i.exec(navigator.userAgent)][0][1] == 6);
var $ = function (id) {
return "string" == typeof id ? document.getElementById(id) : id;
};
var Class = {
create: function() {
return function() { this.initialize.apply(this, arguments); }
}
}
var Extend = function(destination, source) {
for (var property in source) {
destination[property] = source[property];
}
}
var Bind = function(object, fun) {
return function() {
return fun.apply(object, arguments);
}
}
var BindAsEventListener = function(object, fun) {
var args = Array.prototype.slice.call(arguments).slice(2);
return function(event) {
return fun.apply(object, [event || window.event].concat(args));
}
}
var CurrentStyle = function(element){
return element.currentStyle || document.defaultView.getComputedStyle(element, null);
}
function addEventHandler(oTarget, sEventType, fnHandler) {
if (oTarget.addEventListener) {
oTarget.addEventListener(sEventType, fnHandler, false);
} else if (oTarget.attachEvent) {
oTarget.attachEvent("on" + sEventType, fnHandler);
} else {
oTarget["on" + sEventType] = fnHandler;
}
};
function removeEventHandler(oTarget, sEventType, fnHandler) {
if (oTarget.removeEventListener) {
oTarget.removeEventListener(sEventType, fnHandler, false);
} else if (oTarget.detachEvent) {
oTarget.detachEvent("on" + sEventType, fnHandler);
} else {
oTarget["on" + sEventType] = null;
}
};
</script>
<script type="text/javascript" src="ImgCropper.js"></script>
<script type="text/javascript" src="Drag.js"></script>
<script type="text/javascript" src="Resize.js"></script>
<style type="text/css">
#rRightDown,#rLeftDown,#rLeftUp,#rRightUp,#rRight,#rLeft,#rUp,#rDown{
position:absolute;
background:#FFF;
border: 1px solid #333;
width: 6px;
height: 6px;
z-index:500;
font-size:0;
opacity: 0.5;
filter:alpha(opacity=50);
}
#rLeftDown,#rRightUp{cursor:ne-resize;}
#rRightDown,#rLeftUp{cursor:nw-resize;}
#rRight,#rLeft{cursor:e-resize;}
#rUp,#rDown{cursor:n-resize;}
#rLeftDown{left:0px;bottom:0px;}
#rRightUp{right:0px;top:0px;}
#rRightDown{right:0px;bottom:0px;background-color:#00F;}
#rLeftUp{left:0px;top:0px;}
#rRight{right:0px;top:50%;margin-top:-4px;}
#rLeft{left:0px;top:50%;margin-top:-4px;}
#rUp{top:0px;left:50%;margin-left:-4px;}
#rDown{bottom:0px;left:50%;margin-left:-4px;}
#bgDiv{width:400px; height:300px; border:1px solid #666666; position:relative;}
#dragDiv{border:1px dashed #fff; width:100px; height:60px; top:50px; left:50px; cursor:move; }
</style>
<table width="700" border="0" cellspacing="0" cellpadding="0">
<tr>
<td width="300"><div id="bgDiv">
<div id="dragDiv">
<div id="rRightDown"> </div>
<div id="rLeftDown"> </div>
<div id="rRightUp"> </div>
<div id="rLeftUp"> </div>
<div id="rRight"> </div>
<div id="rLeft"> </div>
<div id="rUp"> </div>
<div id="rDown"></div>
</div>
</div></td>
<td align="center"><div id="viewDiv" style="width:300px; height:300px;"> </div></td>
</tr>
</table>
<br />
<input name="" type="button" value="生成图片" onclick="Create()" />
<br /><br />
<img id="imgCreat" style="display:none;" />
<script>
var ic = new ImgCropper("bgDiv", "dragDiv", "01.jpg", {
Width: 400, Height: 300, Color: "#000",
Resize: true,
Right: "rRight", Left: "rLeft", Up:"rUp", Down: "rDown",
RightDown: "rRightDown", LeftDown: "rLeftDown", RightUp: "rRightUp", LeftUp: "rLeftUp",
Preview: "viewDiv", viewWidth: 300, viewHeight: 300
})
function Create(){
var p = ic.Url, o = ic.GetPos();
x = o.Left,
y = o.Top,
w = o.Width,
h = o.Height,
pw = ic._layBase.width,
ph = ic._layBase.height;
$("imgCreat").onload = function(){ this.style.display = ""; }
$("imgCreat").src = "ImgCropper.asp?p=" + p + "&x=" + x + "&y=" + y + "&w=" + w + "&h=" + h + "&pw=" + pw + "&ph=" + ph + "&" + Math.random();
}
</script>
</body>
</html>
Drag.js
//拖放程序
var Drag = Class.create();
Drag.prototype = {
//拖放对象
initialize: function(drag, options) {
this.Drag = $(drag);//拖放对象
this._x = this._y = 0;//记录鼠标相对拖放对象的位置
this._marginLeft = this._marginTop = 0;//记录margin
//事件对象(用于绑定移除事件)
this._fM = BindAsEventListener(this, this.Move);
this._fS = Bind(this, this.Stop);
this.SetOptions(options);
this.Limit = !!this.options.Limit;
this.mxLeft = parseInt(this.options.mxLeft);
this.mxRight = parseInt(this.options.mxRight);
this.mxTop = parseInt(this.options.mxTop);
this.mxBottom = parseInt(this.options.mxBottom);
this.LockX = !!this.options.LockX;
this.LockY = !!this.options.LockY;
this.Lock = !!this.options.Lock;
this.onStart = this.options.onStart;
this.onMove = this.options.onMove;
this.onStop = this.options.onStop;
this._Handle = $(this.options.Handle) || this.Drag;
this._mxContainer = $(this.options.mxContainer) || null;
this.Drag.style.position = "absolute";
//透明
if(isIE && !!this.options.Transparent){
//填充拖放对象
with(this._Handle.appendChild(document.createElement("div")).style){
width = height = "100%"; backgroundColor = "#fff"; filter = "alpha(opacity:0)"; fontSize = 0;
}
}
//修正范围
this.Repair();
addEventHandler(this._Handle, "mousedown", BindAsEventListener(this, this.Start));
},
//设置默认属性
SetOptions: function(options) {
this.options = {//默认值
Handle:"",//设置触发对象(不设置则使用拖放对象)
Limit:false,//是否设置范围限制(为true时下面参数有用,可以是负数)
mxLeft:0,//左边限制
mxRight:9999,//右边限制
mxTop:0,//上边限制
mxBottom:9999,//下边限制
mxContainer:"",//指定限制在容器内
LockX:false,//是否锁定水平方向拖放
LockY:false,//是否锁定垂直方向拖放
Lock:false,//是否锁定
Transparent:false,//是否透明
onStart:function(){},//开始移动时执行
onMove:function(){},//移动时执行
onStop:function(){}//结束移动时执行
};
Extend(this.options, options || {});
},
//准备拖动
Start: function(oEvent) {
if(this.Lock){ return; }
this.Repair();
//记录鼠标相对拖放对象的位置
this._x = oEvent.clientX - this.Drag.offsetLeft;
this._y = oEvent.clientY - this.Drag.offsetTop;
//记录margin
this._marginLeft = parseInt(CurrentStyle(this.Drag).marginLeft) || 0;
this._marginTop = parseInt(CurrentStyle(this.Drag).marginTop) || 0;
//mousemove时移动 mouseup时停止
addEventHandler(document, "mousemove", this._fM);
addEventHandler(document, "mouseup", this._fS);
if(isIE){
//焦点丢失
addEventHandler(this._Handle, "losecapture", this._fS);
//设置鼠标捕获
this._Handle.setCapture();
}else{
//焦点丢失
addEventHandler(window, "blur", this._fS);
//阻止默认动作
oEvent.preventDefault();
};
//附加程序
this.onStart();
},
//修正范围
Repair: function() {
if(this.Limit){
//修正错误范围参数
this.mxRight = Math.max(this.mxRight, this.mxLeft + this.Drag.offsetWidth);
this.mxBottom = Math.max(this.mxBottom, this.mxTop + this.Drag.offsetHeight);
//如果有容器必须设置position为relative或absolute来相对或绝对定位,并在获取offset之前设置
!this._mxContainer || CurrentStyle(this._mxContainer).position == "relative" || CurrentStyle(this._mxContainer).position == "absolute" || (this._mxContainer.style.position = "relative");
}
},
//拖动
Move: function(oEvent) {
//判断是否锁定
if(this.Lock){ this.Stop(); return; };
//清除选择
window.getSelection ? window.getSelection().removeAllRanges() : document.selection.empty();
//设置移动参数
var iLeft = oEvent.clientX - this._x, iTop = oEvent.clientY - this._y;
//设置范围限制
if(this.Limit){
//设置范围参数
var mxLeft = this.mxLeft, mxRight = this.mxRight, mxTop = this.mxTop, mxBottom = this.mxBottom;
//如果设置了容器,再修正范围参数
if(!!this._mxContainer){
mxLeft = Math.max(mxLeft, 0);
mxTop = Math.max(mxTop, 0);
mxRight = Math.min(mxRight, this._mxContainer.clientWidth);
mxBottom = Math.min(mxBottom, this._mxContainer.clientHeight);
};
//修正移动参数
iLeft = Math.max(Math.min(iLeft, mxRight - this.Drag.offsetWidth), mxLeft);
iTop = Math.max(Math.min(iTop, mxBottom - this.Drag.offsetHeight), mxTop);
}
//设置位置,并修正margin
if(!this.LockX){ this.Drag.style.left = iLeft - this._marginLeft + "px"; }
if(!this.LockY){ this.Drag.style.top = iTop - this._marginTop + "px"; }
//附加程序
this.onMove();
},
//停止拖动
Stop: function() {
//移除事件
removeEventHandler(document, "mousemove", this._fM);
removeEventHandler(document, "mouseup", this._fS);
if(isIE){
removeEventHandler(this._Handle, "losecapture", this._fS);
this._Handle.releaseCapture();
}else{
removeEventHandler(window, "blur", this._fS);
};
//附加程序
this.onStop();
}
};
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