• 网站图片的放大镜效果


      1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
      2 
      3 <html xmlns="http://www.w3.org/1999/xhtml">
      4 
      5 <head>
      6 
      7 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
      8 
      9 <title>jQuery网站商品图片放大镜效</title>
     10 
     11 <script type="text/javascript" src="js/jquery.1.4.2-min.js"></script>
     12 
     13 <style type="text/css">
     14 
     15 /* reset */
     16 
     17 body{font:12px/18px "宋体",arial,sans-serif;color:#585858;}
     18 
     19 body,div,p,span,form,iframe,table,td,th,input,textarea,button,label,ul,ol,li,dl,dt,dd,h1,h2,h3,h4,h5,h6{margin:0;padding:0;}
     20 
     21 h1,h2,h3,h4,h5,h6{font-size:100%; }
     22 
     23 ul,ol,li,dl{list-style-type:none;}
     24 
     25 em,i,dfn,cite,strong,small{font-style:normal;} 
     26 
     27 img{border:0;}
     28 
     29 fieldset,button,input,select,option{vertical-align:middle;font:12px/18px "宋体",arial,sans-serif;}
     30 
     31 table{border-collapse:collapse;border-spacing:0}
     32 
     33 textarea{resize:none}
     34 
     35 /* color */
     36 
     37 a:link,a:visited{color:#575757;text-decoration:none;}
     38 
     39 a:hover{color:#ef4165;text-decoration:none;}
     40 
     41 a:active{color:#1d7400;}
     42 
     43 /* clearfix */
     44 
     45 .clearfix:after{ visibility:hidden; display:block; font-size:0; content:" "; clear:both; height:0;}
     46 
     47 *html .clearfix{ zoom:1;}
     48 
     49 
     50 
     51 
     52 
     53 
     54 .preview{width:400px; height:465px; margin:50px 0px 0px 150px;}
     55 
     56 /* smallImg */
     57 
     58 .smallImg{position:relative; height:52px; margin-top:1px; background-color:#F1F0F0; padding:6px 5px; width:390px; overflow:hidden;float:left;}
     59 
     60 .scrollbutton{width:14px; height:50px; overflow:hidden; position:relative; float:left; cursor:pointer; }
     61 
     62 .scrollbutton.smallImgUp , .scrollbutton.smallImgUp.disabled{background:url(images/d_08.png) no-repeat;}
     63 
     64 .scrollbutton.smallImgDown , .scrollbutton.smallImgDown.disabled{background:url(images/d_09.png) no-repeat; margin-left:375px; margin-top:-50px;}
     65 
     66 
     67 
     68 #imageMenu {height:50px; width:360px; overflow:hidden; margin-left:0; float:left;}
     69 
     70 #imageMenu li {height:50px; width:60px; overflow:hidden; float:left; text-align:center;}
     71 
     72 #imageMenu li img{width:50px; height:50px;cursor:pointer;}
     73 
     74 #imageMenu li#onlickImg img, #imageMenu li:hover img{ width:44px; height:44px; border:3px solid #959595;}
     75 
     76 /* bigImg */
     77 
     78 .bigImg{position:relative; float:left; width:400px; height:400px; overflow:hidden;}
     79 
     80 .bigImg #midimg{width:400px; height:400px;}
     81 
     82 .bigImg #winSelector{width:235px; height:210px;}
     83 
     84 #winSelector{position:absolute; cursor:crosshair; filter:alpha(opacity=15); -moz-opacity:0.15; opacity:0.15; background-color:#000; border:1px solid #fff;}
     85 
     86 /* bigView */
     87 
     88 #bigView{position:absolute;border: 1px solid #959595; overflow: hidden; z-index:999;}
     89 
     90 #bigView img{position:absolute;}
     91 
     92 </style>
     93 
     94 </head>
     95 
     96 <body>
     97 
     98 <div class="preview">
     99 
    100     <div id="vertical" class="bigImg">
    101 
    102         <img src="mid/05.jpg" width="400" height="400" alt="" id="midimg" />
    103 
    104         <div style="display:none;" id="winSelector"></div>
    105 
    106     </div><!--bigImg end-->    
    107 
    108     <div class="smallImg">
    109 
    110         <div class="scrollbutton smallImgUp disabled"></div>
    111 
    112         <div id="imageMenu">
    113 
    114             <ul>
    115 
    116                 <li id="onlickImg"><img src="small/05.jpg" width="68" height="68" alt="洋妞"/></li>
    117 
    118                 <li><img src="small/02.jpg" width="68" height="68" alt="洋妞"/></li>
    119 
    120                 <li><img src="small/03.jpg" width="68" height="68" alt="洋妞"/></li>
    121 
    122                 <li><img src="small/04.jpg" width="68" height="68" alt="洋妞"/></li>
    123 
    124                 <li><img src="small/01.jpg" width="68" height="68" alt="洋妞"/></li>
    125 
    126                 <li><img src="small/06.jpg" width="68" height="68" alt="洋妞"/></li>
    127 
    128                 <li><img src="small/04.jpg" width="68" height="68" alt="洋妞"/></li>
    129 
    130             </ul>
    131 
    132         </div>
    133 
    134         <div class="scrollbutton smallImgDown"></div>
    135 
    136     </div><!--smallImg end-->    
    137 
    138     <div id="bigView" style="display:none;"><img width="800" height="800" alt="" src="" /></div>
    139 
    140 </div>
    141 
    142 <!--preview end-->
    143 
    144 <script type="text/javascript">
    145 
    146 $(document).ready(function(){
    147 
    148     // 图片上下滚动
    149 
    150     var count = $("#imageMenu li").length - 5; /* 显示 6 个 li标签内容 */
    151 
    152     var interval = $("#imageMenu li:first").width();
    153 
    154     var curIndex = 0;
    155 
    156     
    157 
    158     $('.scrollbutton').click(function(){
    159 
    160         if( $(this).hasClass('disabled') ) return false;
    161 
    162         
    163 
    164         if ($(this).hasClass('smallImgUp')) --curIndex;
    165 
    166         else ++curIndex;
    167 
    168         
    169 
    170         $('.scrollbutton').removeClass('disabled');
    171 
    172         if (curIndex == 0) $('.smallImgUp').addClass('disabled');
    173 
    174         if (curIndex == count-1) $('.smallImgDown').addClass('disabled');
    175 
    176         
    177 
    178         $("#imageMenu ul").stop(false, true).animate({"marginLeft" : -curIndex*interval + "px"}, 600);
    179 
    180     });    
    181 
    182     // 解决 ie6 select框 问题
    183 
    184     $.fn.decorateIframe = function(options) {
    185 
    186         if ($.browser.msie && $.browser.version < 7) {
    187 
    188             var opts = $.extend({}, $.fn.decorateIframe.defaults, options);
    189 
    190             $(this).each(function() {
    191 
    192                 var $myThis = $(this);
    193 
    194                 //创建一个IFRAME
    195 
    196                 var divIframe = $("<iframe />");
    197 
    198                 divIframe.attr("id", opts.iframeId);
    199 
    200                 divIframe.css("position", "absolute");
    201 
    202                 divIframe.css("display", "none");
    203 
    204                 divIframe.css("display", "block");
    205 
    206                 divIframe.css("z-index", opts.iframeZIndex);
    207 
    208                 divIframe.css("border");
    209 
    210                 divIframe.css("top", "0");
    211 
    212                 divIframe.css("left", "0");
    213 
    214                 if (opts.width == 0) {
    215 
    216                     divIframe.css("width", $myThis.width() + parseInt($myThis.css("padding")) * 2 + "px");
    217 
    218                 }
    219 
    220                 if (opts.height == 0) {
    221 
    222                     divIframe.css("height", $myThis.height() + parseInt($myThis.css("padding")) * 2 + "px");
    223 
    224                 }
    225 
    226                 divIframe.css("filter", "mask(color=#fff)");
    227 
    228                 $myThis.append(divIframe);
    229 
    230             });
    231 
    232         }
    233 
    234     }
    235 
    236     $.fn.decorateIframe.defaults = {
    237 
    238         iframeId: "decorateIframe1",
    239 
    240         iframeZIndex: -1,
    241 
    242          0,
    243 
    244         height: 0
    245 
    246     }
    247 
    248     //放大镜视窗
    249 
    250     $("#bigView").decorateIframe();
    251 
    252     //点击到中图
    253 
    254     var midChangeHandler = null;
    255 
    256     
    257 
    258     $("#imageMenu li img").bind("click", function(){
    259 
    260         if ($(this).attr("id") != "onlickImg") {
    261 
    262             midChange($(this).attr("src").replace("small", "mid"));
    263 
    264             $("#imageMenu li").removeAttr("id");
    265 
    266             $(this).parent().attr("id", "onlickImg");
    267 
    268         }
    269 
    270     }).bind("mouseover", function(){
    271 
    272         if ($(this).attr("id") != "onlickImg") {
    273 
    274             window.clearTimeout(midChangeHandler);
    275 
    276             midChange($(this).attr("src").replace("small", "mid"));
    277 
    278             $(this).css({ "border": "3px solid #959595" });
    279 
    280         }
    281 
    282     }).bind("mouseout", function(){
    283 
    284         if($(this).attr("id") != "onlickImg"){
    285 
    286             $(this).removeAttr("style");
    287 
    288             midChangeHandler = window.setTimeout(function(){
    289 
    290                 midChange($("#onlickImg img").attr("src").replace("small", "mid"));
    291 
    292             }, 1000);
    293 
    294         }
    295 
    296     });
    297 
    298     function midChange(src) {
    299 
    300         $("#midimg").attr("src", src).load(function() {
    301 
    302             changeViewImg();
    303 
    304         });
    305 
    306     }
    307 
    308     //大视窗看图
    309 
    310     function mouseover(e) {
    311 
    312         if ($("#winSelector").css("display") == "none") {
    313 
    314             $("#winSelector,#bigView").show();
    315 
    316         }
    317 
    318         $("#winSelector").css(fixedPosition(e));
    319 
    320         e.stopPropagation();
    321 
    322     }
    323 
    324     function mouseOut(e) {
    325 
    326         if ($("#winSelector").css("display") != "none") {
    327 
    328             $("#winSelector,#bigView").hide();
    329 
    330         }
    331 
    332         e.stopPropagation();
    333 
    334     }
    335 
    336     $("#midimg").mouseover(mouseover); //中图事件
    337 
    338     $("#midimg,#winSelector").mousemove(mouseover).mouseout(mouseOut); //选择器事件
    339 
    340 
    341 
    342     var $divWidth = $("#winSelector").width(); //选择器宽度
    343 
    344     var $divHeight = $("#winSelector").height(); //选择器高度
    345 
    346     var $imgWidth = $("#midimg").width(); //中图宽度
    347 
    348     var $imgHeight = $("#midimg").height(); //中图高度
    349 
    350     var $viewImgWidth = $viewImgHeight = $height = null; //IE加载后才能得到 大图宽度 大图高度 大图视窗高度
    351 
    352 
    353 
    354     function changeViewImg() {
    355 
    356         $("#bigView img").attr("src", $("#midimg").attr("src").replace("mid", "big"));
    357 
    358     }
    359 
    360     changeViewImg();
    361 
    362     $("#bigView").scrollLeft(0).scrollTop(0);
    363 
    364     function fixedPosition(e) {
    365 
    366         if (e == null) {
    367 
    368             return;
    369 
    370         }
    371 
    372         var $imgLeft = $("#midimg").offset().left; //中图左边距
    373 
    374         var $imgTop = $("#midimg").offset().top; //中图上边距
    375 
    376         X = e.pageX - $imgLeft - $divWidth / 2; //selector顶点坐标 X
    377 
    378         Y = e.pageY - $imgTop - $divHeight / 2; //selector顶点坐标 Y
    379 
    380         X = X < 0 ? 0 : X;
    381 
    382         Y = Y < 0 ? 0 : Y;
    383 
    384         X = X + $divWidth > $imgWidth ? $imgWidth - $divWidth : X;
    385 
    386         Y = Y + $divHeight > $imgHeight ? $imgHeight - $divHeight : Y;
    387 
    388 
    389 
    390         if ($viewImgWidth == null) {
    391 
    392             $viewImgWidth = $("#bigView img").outerWidth();
    393 
    394             $viewImgHeight = $("#bigView img").height();
    395 
    396             if ($viewImgWidth < 200 || $viewImgHeight < 200) {
    397 
    398                 $viewImgWidth = $viewImgHeight = 800;
    399 
    400             }
    401 
    402             $height = $divHeight * $viewImgHeight / $imgHeight;
    403 
    404             $("#bigView").width($divWidth * $viewImgWidth / $imgWidth);
    405 
    406             $("#bigView").height($height);
    407 
    408         }
    409 
    410         var scrollX = X * $viewImgWidth / $imgWidth;
    411 
    412         var scrollY = Y * $viewImgHeight / $imgHeight;
    413 
    414         $("#bigView img").css({ "left": scrollX * -1, "top": scrollY * -1 });
    415 
    416         $("#bigView").css({ "top": 75, "left": $(".preview").offset().left + $(".preview").width() + 15 });
    417 
    418 
    419 
    420         return { left: X, top: Y };
    421 
    422     }
    423 
    424 });
    425 
    426 </script>
    427 
    428 </body>
    429 
    430 </html> 
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  • 原文地址:https://www.cnblogs.com/yangguoe/p/8510890.html
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