jquery图片拖动查看特效代码

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以下是 jquery图片拖动查看特效代码的示例演示效果:

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部分效果截图:

HTML代码(index.html):

<!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=utf-8" />
<title>jquery图片拖动查看</title>
<script type="text/javascript" src="js/jquery.1.4.2-min.js"></script>
</head>
<body>
<!--演示内容开始-->
<style type="text/css">
*{margin:0;padding:0;list-style-type:none;}
a,img{border:0;}
body{overflow:hidden;font:12px/180% Arial, Helvetica, sans-serif ,"新宋体";}
/* shortcut */
.shortcut{position:fixed;top:0;left:0;z-index:9999;width:100%;}
*html,*html body /* 修正IE6振动bug */{background-image:url(about:blank);background-attachment:fixed;}
*html .shortcut{position:absolute;top:expression(eval(document.documentElement.scrollTop));}
.shortcut{height:28px;background:#EEEEEE;box-shadow:1px 0px 2px rgba(0,0,0,0.2);border-bottom:1px solid #DDDDDD;padding:40px 0 0 0;}
.shortcut li{float:left;cursor:pointer;margin:5px 0 0 15px;display:inline;}
/* #picbbox */
.down_showpic{overflow:hidden;width:auto;text-align:center;}
.pictio{position:absolute;z-index:1;background-color:#666;cursor:move;}
</style>

<div class="shortcut">
	<ul>
		<li class="arc_push1"><img src="images/ckyt-btn.gif" width="60" height="18" alt="查看原图" /></li>
		<li class="arc_push2"><img src="images/sypm-btn.gif" width="60" height="18" alt="适应屏幕" /></li>
		<li class="arc_push5"><img src="images/sykd-btn.gif" width="60" height="18" alt="适应宽度" /></li>
	</ul>	
</div>

<div id="picbbox">
	<div class="down_showpic"><img src="images/1.jpg" alt="微笑的美丽说" title="微笑的美丽说"  /><div class="pictio"></div></div>
</div>

<script type="text/javascript">
$(document).ready(function(){
	$(".down_showpic").css("width",$(window).width());
	$(window).resize(function(){
		$(".down_showpic").css("width",$(window).width());
		$(".pictio").width($("#picbbox").width()).height($("#picbbox").height());
	});
});

var p_w;
var p_h;
$(".down_showpic>img").load(function(){
	p_w=$(this).width();
	p_h=$(this).height();
	$(".pictio").width($("#picbbox").width()).height($("#picbbox").height()).css({top:$(this).position().top,left:0}).fadeTo(100, 0.05);
})
dragpic=-1;
dragpicy=-1;
$(".pictio").bind({
	mousedown: function(e){
		//e=event?event:window.event;
		dragpic=e.pageX || (e.clientX);
		dragpicy=e.pageY || (e.clientY);
		if (e.stopPropagation){ 
			// this code is for Mozilla and Opera 
			e.stopPropagation(); 
			e.preventDefault();
		};
	},
	mouseup: function(){
		dragpic=-1;
	},mousemove: function(e){
		if(dragpic>=0){
			//e=event?event:window.event;
			dqsb=e.pageX || (e.clientX );
			dqsby=e.pageY || (e.clientY );
			$(".down_showpic").scrollLeft($(".down_showpic").scrollLeft()+(dragpic-dqsb))
			$(document).scrollTop($(document).scrollTop()+(dragpicy-dqsby))
			dragpic=dqsb
			dragpicy=dqsby
		}
	},mouseout: function(){
		dragpic=-1;
	}
});

$(".arc_push1").click(function(){
	$(".pictio").width($("#picbbox").width()).height($("#picbbox").height());
	$(".down_showpic>img").css({"width":"auto","height":"auto"});
	$(document).scrollTop($(".down_showpic").position().top);
	return false;
});

$(".arc_push2").click(function(){
	w=p_w;
	h=p_h;
	boxw=$(window).width()
	boxh=$(window).height()
	$(".pictio").width(boxw).height(boxh-$(".downbom").height());
	if(w<boxw && h<boxh){
	}else{
		if((w/h)>(boxw/boxh)){
			$(".down_showpic>img").css({"width":boxw,height:"auto"});
		}else{
			//$(".down_showpic>img").css("width",boxw);
			$(".down_showpic>img").css({"width":"auto","height":boxh-$(".downbom").height()});
			
		}
	}
	$(document).scrollTop($(".down_showpic").position().top);
	return false;
});

$(".arc_push5").click(function(){
	w=p_w;
	h=p_h;
	boxw=$(window).width()
	boxh=$(window).height()
	$(".pictio").width($("#picbbox").width()).height($("#picbbox").height());
	if(w<boxw){
		
	}else{
		$(".down_showpic>img").css({"width":boxw,height:"auto"});
	}
	$(document).scrollTop($(".down_showpic").position().top);
	return false;
});
</script>
<!--演示内容结束-->
</body>
</html>

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