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来源：互联网 发布：c语言分隔符 编辑：程序博客网 时间：2024/06/05 09:48

js图片查看器源码    

这是我转别人的，觉得以后会有用

今天第一次使用图片查看器找源码还真是费了好大的劲呢，所以就保存到这了，以后可以随时备用。

javascript脚本语言，实现图片的缩放使用的函数。加载的是图标。

<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='jingtai.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='jingtai.jpg' border='0'></div>
</body>

 


下面也是图片放大的代码，就是可以应用于制作网页设计比较好，也保存了。

<html>
<head>
<title>JS图片放大特效</title>
<meta http-equiv="imagetoolbar" content="no">
<style type="text/css">
body {
background: #000;
overflow: hidden;
left: 0;
top: 0;
width: 100%;
height: 100%;
margin: 0;
padding: 0;
}
#screen span {
position:absolute;
overflow:hidden;
border:#FFF solid 1px;
background:#FFF;
}
#screen img{
position:absolute;
left:-32px;
top:-32px;
cursor: pointer;
}
#caption, #title{
color: #FFF;
font-family: georgia, 'times new roman', times, veronica, serif;
font-size: 1em;
text-align: center;
}
#caption b {
font-size: 2em;
}
</style>
<script type="text/javascript"><!--
window.onerror = new Function("return true");
var obj = [];
var scr;
var spa;
var img;
var W;
var Wi;
var Hi;
var wi;
var hi;
var Sx;
var Sy;
var M;
var xm;
var ym;
var xb = 0;
var yb = 0;
var ob =  - 1;
var cl = false;
px = function(x)
{
 return Math.round(x) + "px";
}

img_center = function(o)
{
 with(img[o])
 {
  style.left = px( - (width - Wi) / 2);
  style.top = px( - (height - Hi) / 2);
 }
}
var Nx = 4; //size grid x
var Ny = 4; //size grid y
var Tx = 3; // image width
var Ty = 3; // image height
var Mg = 40; // margin
var SP = 1; // speed

function Cobj(o, x, y)
{
 this.o = o;
 this.ix = Math.min(Nx - Tx, Math.max(0, Math.round(x - (Tx / 2))));
 this.iy = Math.min(Ny - Ty, Math.max(0, Math.round(y - (Ty / 2))));
 this.li = ((this.ix * M + this.ix * Sx) - (x * M + x * Sx)) / SP;
 this.ti = ((this.iy * M + this.iy * Sy) - (y * M + y * Sy)) / SP;
 this.l = 0;
 this.t = 0;
 this.w = 0;
 this.h = 0;
 this.s = 0;
 this.mv = false;
 this.spa = spa[o].style;
 this.img = img[o];
 this.txt = img[o].alt;
 img[o].alt = "";

 this.zoom = function()
 {
  with(this)
  {
   l += li * s;
   t += ti * s;
   w += wi * s;
   h += hi * s;
   if ((s > 0 && w < Wi) || (s < 0 && w > Sx))
   {
    window.focus();
    /* loop */
    setTimeout("obj[" + o + "].zoom()", 16);
   }
   else
   {
    mv = false;
    if (s > 0)
    {
     l = ix * M + ix * Sx;
     t = iy * M + iy * Sy;
     w = Wi;
     h = Hi;
    }
    else
    {
     l = x * M + x * Sx;
     t = y * M + y * Sy;
     w = Sx;
     h = Sy;
    }
   }
   with(spa)
   {
    left = px(l);
    top = px(t);
    width = px(w);
    height = px(h);
    zIndex = Math.round(w);
   }
  }
 }

 this.click = function()
 {
  with(this)
  {
   img_center(o);
   if ( ! mv || cl)
   {
    if (s > 0)
    {
     if (cl || Math.abs(xm - xb) > Sx * .4 || Math.abs(ym - yb) > Sy * .4)
     {
      s =  - 2;
      mv = true;
      zoom();
      cap.innerHTML = txt;
     }
    }
    else
    {
     if (cl || ob != o)
     {
      if (ob >= 0)
      {
       with(obj[ob])
       {
        s =  - 2;
        mv = true;
        zoom();
       }
      }
      ob = o;
      s = 1;
      xb = xm;
      yb = ym;
      mv = true;
      zoom();
      cap.innerHTML = txt;
     }
    }
   }
  }
 }
 
 img[o].onmouseover = img[o].onmousemove = img[o].onmouseout = new Function("cl=false;obj[" + o + "].click()");
 img[o].onclick = new Function("cl=true;obj[" + o + "].click()");
 img[o].onload = new Function("img_center(" + o + ")");
 this.zoom();
}

document.onmousemove = function(e)
{
 if ( ! e)
 {
  e = window.event;
 }
 xm = (e.x || e.clientX);
 ym = (e.y || e.clientY);
}

function load()
{
 scr = document.getElementById("screen");
 spa = scr.getElementsByTagName("span");
 img = scr.getElementsByTagName("img");
 cap = document.getElementById("caption");
 
document.getElementById("border").onmouseover = function()
 {
  cl = true;
  if(ob >= 0 && obj[ob].s > 0) obj[ob].click();
  ob = -1;
 }

 W = parseInt(scr.style.width);
 H = parseInt(scr.style.height);
 M = W / Mg;
 Sx = (W - (Nx - 1) * M) / Nx;
 Sy = (H - (Ny - 1) * M) / Ny;
 Wi = Tx * Sx + (Tx - 1) * M;
 Hi = Ty * Sy + (Ty - 1) * M;
 SP = M * Tx * SP;
 wi = (Wi - Sx) / SP;
 hi = (Hi - Sy) / SP;
 
 for (k = 0, i = 0; i < Nx; i ++)
 {
  for (j = 0; j < Ny; j ++)
  {
   obj[k] = new Cobj(k ++, i, j);
  }
 }
}
//-->
</script></head><body>
<div style="position: absolute; left: 50%; top: 50%;">
<div id="title" style="position: absolute; width: 440px; height: 40px; left: -220px; top: -200px;"></div>
<div id="border" style="border: 1px solid rgb(85, 85, 85); background: rgb(0, 0, 0) none repeat scroll 0%; position: absolute; width: 440px; height: 340px; left: -220px; top: -170px; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;"></div>
<div id="screen" style="background: rgb(0, 0, 0) none repeat scroll 0%; position: absolute; width: 400px; height: 300px; left: -200px; top: -150px; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;">
<span style="left: 0px; top: 0px; width: 93px; height: 68px; z-index: 93;"><img style="left: -11px; top: -9px;" src="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im6.jpg" _fcksavedurl="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im6.jpg" alt=""></span>
<span style="left: 0px; top: 78px; width: 93px; height: 68px; z-index: 93;"><img style="left: -11px; top: -8px;" src="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im2.jpg" _fcksavedurl="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im2.jpg" alt=""></span>
<span style="left: 0px; top: 155px; width: 93px; height: 68px; z-index: 93;"><img style="left: -11px; top: -9px;" src="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im3.jpg" _fcksavedurl="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im3.jpg" alt=""></span>
<span style="left: 0px; top: 233px; width: 93px; height: 68px; z-index: 93;"><img style="left: -11px; top: -9px;" src="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im4.jpg" _fcksavedurl="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im4.jpg" alt=""></span>
<span style="left: 103px; top: 0px; width: 93px; height: 68px; z-index: 93;"><img style="left: -11px; top: -9px;" src="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im5.jpg" _fcksavedurl="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im5.jpg" alt=""></span>
<span style="left: 103px; top: 78px; width: 93px; height: 68px; z-index: 93;"><img style="left: -11px; top: -9px;" src="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im1.jpg" _fcksavedurl="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im1.jpg" alt=""></span>
<span style="left: 103px; top: 155px; width: 93px; height: 68px; z-index: 93;"><img style="left: -11px; top: -9px;" src="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im7.jpg" _fcksavedurl="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im7.jpg" alt=""></span>
<span style="left: 103px; top: 233px; width: 93px; height: 68px; z-index: 93;"><img style="left: -11px; top: -9px;" src="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im18.jpg" _fcksavedurl="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im18.jpg" alt=""></span>
<span style="left: 205px; top: 0px; width: 93px; height: 68px; z-index: 93;"><img style="left: -11px; top: -9px;" src="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im8.jpg" _fcksavedurl="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im8.jpg" alt=""></span>
<span style="left: 205px; top: 78px; width: 93px; height: 68px; z-index: 93;"><img style="left: -11px; top: -9px;" src="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im10.jpg" _fcksavedurl="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im10.jpg" alt=""></span>
<span style="left: 205px; top: 155px; width: 93px; height: 68px; z-index: 93;"><img style="left: -11px; top: -9px;" src="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im12.jpg" _fcksavedurl="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im12.jpg" alt=""></span>
<span style="left: 205px; top: 233px; width: 93px; height: 68px; z-index: 93;"><img style="left: -11px; top: -9px;" src="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im17.jpg" _fcksavedurl="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im17.jpg" alt=""></span>
<span style="left: 308px; top: 0px; width: 93px; height: 68px; z-index: 93;"><img style="left: -11px; top: -9px;" src="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im14.jpg" _fcksavedurl="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im14.jpg" alt=""></span>
<span style="left: 308px; top: 78px; width: 93px; height: 68px; z-index: 93;"><img style="left: -11px; top: -9px;" src="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im15.jpg" _fcksavedurl="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im15.jpg" alt=""></span>
<span style="left: 308px; top: 155px; width: 93px; height: 68px; z-index: 93;"><img style="left: -11px; top: -9px;" src="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im16.jpg" _fcksavedurl="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im16.jpg" alt=""></span>
<span style="left: 308px; top: 233px; width: 93px; height: 68px; z-index: 93;"><img style="left: -11px; top: -9px;" src="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im9.jpg" _fcksavedurl="http://preview.zcool.com.cn/code/js/04/10/slide-M_data/im9.jpg" alt=""></span>
</div>
<div id="caption" style="position: absolute; width: 440px; height: 60px; left: -220px; top: 175px;"><b>carefully</b> weight the options</div>
</div>
<script type="text/javascript"><!--
// starter
load();
//-->
</script>
</body>
</html>

 

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