JS网页图片查看器(兼容IE、FF)可控制图片放大缩小移动 | 学步园

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JS网页图片查看器(兼容IE、FF)可控制图片放大缩小移动

2013年02月27日 ⁄ 综合 ⁄ 共 1870字 ⁄ 字号小中大 ⁄ 评论关闭

修正了网上其它版本的一些错误。完美无错版

<meta http-equiv="Content-Type" content="text/html; charset=gb2312"><meta http-equiv="imagetoolbar" content="no"><br />
<style type="text/css"> 
body { font-family: "Verdana", "Arial", "Helvetica", "sans-serif"; font-size: 12px; line-height: 180%; } 
td { font-size: 12px; line-height: 150%; } 
</style>
<p><script language="JavaScript"> 
drag = 0 
move = 0 </p>
<p>// 拖拽对象 
// 参见：http://blog.sina.com.cn/u/4702ecbe010007pe 
var ie=document.all; 
var nn6=document.getElementById&&!document.all; 
var isdrag=false; 
var y,x; 
var oDragObj; </p>
<p>function moveMouse(e) { 
if (isdrag) { 
oDragObj.style.top = (nn6 ? nTY + e.clientY - y : nTY + event.clientY - y)+"px"; 
oDragObj.style.left = (nn6 ? nTX + e.clientX - x : nTX + event.clientX - x)+"px"; 
return false; 
} 
} </p>
<p>function initDrag(e) { 
var oDragHandle = nn6 ? e.target : event.srcElement; 
var topElement = "HTML"; 
while (oDragHandle.tagName != topElement && oDragHandle.className != "dragAble") { 
oDragHandle = nn6 ? oDragHandle.parentNode : oDragHandle.parentElement; 
} 
if (oDragHandle.className=="dragAble") { 
isdrag = true; 
oDragObj = oDragHandle; 
nTY = parseInt(oDragObj.style.top+0); 
y = nn6 ? e.clientY : event.clientY; 
nTX = parseInt(oDragObj.style.left+0); 
x = nn6 ? e.clientX : event.clientX; 
document.onmousemove=moveMouse; 
return false; 
} 
} 
document.onmousedown=initDrag; 
document.onmouseup=new Function("isdrag=false"); </p>
<p>function clickMove(s){ 
if(s=="up"){ 
dragObj.style.top = parseInt(dragObj.style.top) + 100; 
}else if(s=="down"){ 
dragObj.style.top = parseInt(dragObj.style.top) - 100; 
}else if(s=="left"){ 
dragObj.style.left = parseInt(dragObj.style.left) + 100; 
}else if(s=="right"){ 
dragObj.style.left = parseInt(dragObj.style.left) - 100; 
} </p>
<p>} </p>
<p>function smallit(){ 
var height1=images1.height; 
var width1=images1.width; 
images1.height=height1/1.2; 
images1.width=width1/1.2; 
} </p>
<p>function bigit(){ 
var height1=images1.height; 
var width1=images1.width; 
images1.height=height1*1.2; 
images1.width=width1*1.2; 
} 
function realsize() 
{ 
images1.height=images2.height; 
images1.width=images2.width; 
block1.style.left = 0; 
block1.style.top = 0; </p>
<p>} 
function featsize() 
{ 
var width1=images2.width; 
var height1=images2.height; 
var width2=360; 
var height2=200; 
var h=height1/height2; 
var w=width1/width2; 
if(height1<height2&&width1<width2) 
{ 
images1.height=height1; 
images1.width=width1; 
} 
else 
{ 
if(h>w) 
{ 
images1.height=height2; 
images1.width=width1*height2/height1; 
} 
else 
{ 
images1.width=width2; 
images1.height=height1*width2/width1; 
} 
} 
block1.style.left = 0; 
block1.style.top = 0; 
} </p>
<p></script><script language="JavaScript" type="text/JavaScript"> 
 
</script><br />
<style type="text/css"> 
 
</style>
<div id="Layer1">
<table border="0" cellspacing="2" cellpadding="0">
<tr>
<td> </td>
<td><img src="http://img.jb51.net/images/map/up.gif" width="20" height="20" style="cursor:hand" onclick="clickMove('up')" title="向上"></td>
<td> </td>
</tr>
<tr>
<td><img src="http://img.jb51.net/images/map/left.gif" width="20" height="20" style="cursor:hand" onclick="clickMove('left')" title="向左"></td>
<td><img src="http://img.jb51.net/images/map/zoom.gif" width="20" height="20" style="cursor:hand" onclick="realsize();" title="还原"></td>
<td><img src="http://img.jb51.net/images/map/right.gif" width="20" height="20" style="cursor:hand" onclick="clickMove('right')" title="向右"></td>
</tr>
<tr>
<td> </td>
<td><img src="http://img.jb51.net/images/map/down.gif" width="20" height="20" style="cursor:hand" onclick="clickMove('down')" title="向下"></td>
<td> </td>
</tr>
<tr>
<td> </td>
<td><img src="http://img.jb51.net/images/map/zoom_in.gif" width="20" height="20" style="cursor:hand" onclick="bigit();" title="放大"></td>
<td> </td>
</tr>
<tr>
<td> </td>
<td><img src="http://img.jb51.net/images/map/zoom_out.gif" width="20" height="20" style="cursor:hand" onclick="smallit();" title="缩小"></td>
<td> </td>
</tr>
</table>
</div>
<div id="hiddenPic" style="position:absolute; left:0px; top:0px; width:0px; height:0px; z-index:1; visibility: hidden;"><img name="images2" src="http://img.jb51.net/images/map/760-480bsx.jpg" border="0"></div>
<div id="block1" onmouseout="drag=0" onmouseover="dragObj=block1; drag=1;" style="z-index:10; height: 0; left: 0px; position: absolute; top: 0px; width: 0" class="dragAble"> <img name="images1" src="http://img.jb51.net/images/map/760-480bsx.jpg" border="0"></div>
<p>

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作者: bountiful

该日志由 bountiful 于11年前发表在综合分类下，最后更新于 2013年02月27日.
转载请注明: JS网页图片查看器(兼容IE、FF)可控制图片放大缩小移动 | 学步园 +复制链接

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