JS control picture Flip Sample code

Source: Internet
Author: User

  This article mainly introduces JS control picture Flip Sample code (compatible firefox,ie,chrome) needs of friends can come to the reference, I hope to help you.

  Code as follows: <! 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>  <title> picture rotation effect </ title>  <meta http-equiv= "Content-type" content= "text/html;charset=gb2312" >  <!--Add the following code to < Between Head> and </head>-->  <style type= "Text/css" >  ul{padding:0 15px;}   UL li{padding-bottom:15px;border-bottom:1px dashed #EEE;}   caption{padding:15px 0 5px;}   Caption Input{margin-right:10px;padding:0 10px;}   </style>  <script type= "Text/javascript" > /*  * www.byzuo.com  * ok!: MSIE 6, 7, 8 , Firefox 3.6, Chrome 4, Safari 4, Opera 10  * o rotate picture id;  * P Select rotation direction, fixed value is ' left ' or ' right ';  */  function Rotate (o,p) {      var img = document.getElementById (o);      if (!img | |!p) return FALSE;&N Bsp     var n = Img.getattribute (' step ');      if (n== null) n=0;      if (p== ' right ') {      & nbsp   (n==3)? n=0:n++;     }else if (p== ' left ') {          (n==0)? n=3:n--;     }       Img.setattribute (' step ', N);     //msie      if (document.all) {          Img.style.filter = ' progid:DXImageTransform.Microsoft.BasicImage (rotation= ' + n + ') ';         //hack for MSIE 8          switch (n) {        &NBS P     Case 0:                  Imgimg.parentNode.style.height = Img.h eight;                  break;            &NBSP ; Case 1:                  Imgimg.parentNode.style.height = img.width;  &N BsP               break;              Case 2:  &nbs P               imgimg.parentNode.style.height = img.height;        & nbsp         break;              case 3:        &NBS P         imgimg.parentNode.style.height = img.width;              &N Bsp   break;         }     //dom     }else{          var c = document.getElementById (' canvas_ ' +o);          if (c== null) {              img.style.visibility = ' hidden ';              Img.st yle.position = ' absolute ';              C = document.createelement (' canvas ');  &NB Sp          C.setattribute ("id", ' canvas_ ' +o);              IMG.P Arentnode.appendchild (c);         }          var ccanvascontext = C.get Context (' 2d ');          switch (n) {              default: &nbs P             case 0:                  C.SETATTR Ibute (' width ', img.width);                  c.setattribute (' Height ', Img.hei ght);                  canvascontext.rotate (0 * math.pi/180);                  canvascontext.drawimage (img, 0, 0);          &NB Sp       break;              Case 1:          &NB Sp      C.setattribute (' width ', img.height);                  C.setattribute ( ' Height ', img.width);                  Canvascontext.rotate (MATH.PI/18 0);                  canvascontext.drawimage (img, 0,-img.height);  &nbs P               break;              Case 2:  &NB Sp               c.setattribute (' width ', img.width);          &NB Sp       C.setattribute (' height ', img.height);                  C Anvascontext.rotate (180 * math.pi/180);                  Canvascontext.draw Image (IMG,-img.width,-img.height);                  break;    &NB Sp   &NBSp     Case 3:                  c.setattribute (' width ', img.height); nbsp                 c.setattribute (' height ', img.width);        &N Bsp         canvascontext.rotate (270 * math.pi/180);              &NB Sp   Canvascontext.drawimage (IMG,-img.width, 0);                  BREAK;&N Bsp        }     } }  </script>  </head>  <body>& nbsp <!--Add the following code to <body> and </body>-->  <ul class= "Clearfix" >      <li>           <div class= "caption" >              <input t Ype= "button" value= "Turn Left" onclick= "rotate (' pic_1 ', ' left ')" >              < InputType= "button" value= "Turn Right" onclick= "rotate (' pic_1 ', ' right ')" >          </div>& nbsp         <DIV class= "cont" >              <img  alt= "ja Vascript picture rotation effect " id=" Pic_1 "src=" 1.gif "alt=" ">          </div>    &NBS P </li>  </ul>  </body>  </html>  
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