`

JS网页图片查看器－可控制图片放大缩小移动｜兼容IE、FF

IEJavaScript360CSSUP 
阅读更多

<html>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>JS网页图片查看器－可控制图片放大缩小还原移动效果</title>
<META HTTP-EQUIV="imagetoolbar" CONTENT="no">
<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>
<SCRIPT language=JavaScript>
drag = 0
move = 0

// 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;

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;
 }
}

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");

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;
 }

}

function smallit(){           
  var height1=images1.height;           
  var width1=images1.width;           
  images1.height=height1/1.2;           
  images1.width=width1/1.2;          
}            
   
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;
 
}
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;
}

</SCRIPT>
<script language="JavaScript" type="text/JavaScript">
<!--
function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);
//-->
</script>
<style type="text/css">
<!--
td, a { font-size:12px; color:#000000 }
#Layer1 { position:absolute; z-index:100; top: 10px; }
#Layer2 { position:absolute; z-index:1; }
-->
</style>
</head>
<body leftmargin="0" topmargin="0" marginwidth="0" marginheight="0" onLoad="init();" oncontextmenu="return false" ondragstart="return false" onselectstart ="return false" onselect="document.selection.empty()" oncopy="document.selection.empty()" onbeforecopy="return false"onmouseup="document.selection.empty()" style="overflow-y:hidden;overflow-x:hidden;">
<div id="Layer1">
  <table border="0" cellspacing="2" cellpadding="0">
    <tr>
      <td> </td>
      <td><img src="/Images2008/map/up.gif" width="20" height="20" style="cursor:hand" onClick="clickMove('up')" title="向上"></td>
      <td> </td>
    </tr>
    <tr>
      <td><img src="/Images2008/map/left.gif" width="20" height="20" style="cursor:hand" onClick="clickMove('left')" title="向左"></td>
      <td><img src="/Images2008/map/zoom.gif" width="20" height="20" style="cursor:hand" onClick="realsize();" title="还原"></td>
      <td><img src="/Images2008/map/right.gif" width="20" height="20" style="cursor:hand" onClick="clickMove('right')" title="向右"></td>
    </tr>
    <tr>
      <td> </td>
      <td><img src="/Images2008/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="/Images2008/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="/Images2008/map/zoom_out.gif" width="20" height="20" style="cursor:hand" onClick="smallit();" title="缩小"></td>
      <td> </td>
    </tr>
  </table>
</div>
<p><br>
<div id='hiddenPic' style='position:absolute; left:0px; top:0px; width:0px; height:0px; z-index:1; visibility: hidden;'><img name='images2' src='/UploadFile/taobao0809/760-480bsx.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='/UploadFile/taobao0809/760-480bsx.jpg' border='0'></div>
</body>
</html>

分享到：
| 网页设计中CSS的十八个技巧
评论
1 楼 greatghoul 2009-06-22  
不知为什么，我在ie和ff下都不能正常运行。
发表评论

您还没有登录,请您登录后再发表评论

相关推荐

Magicbox
Global site tag (gtag.js) - Google Analytics