DOM
<center> <div id="preview" class="spec-preview"> <span class="jqzoom"><img jqimg="http://www.jsdaima.com/Upload/1409909522/b2.jpg" src="http://www.jsdaima.com/Upload/1409909522/s2.jpg" alt=""></span> </div> <!--缩图开始--> <div class="spec-scroll"> <a class="prev"><</a> <a class="next">></a> <div class="items"> <ul style="left: -448px;"> <li><img alt="佳能" bimg="http://www.jsdaima.com/Upload/1409909522/b1.jpg" src="http://www.jsdaima.com/Upload/1409909522/s1.jpg" onmousemove="preview(this);"></li> <li><img alt="佳能" bimg="http://www.jsdaima.com/Upload/1409909522/b2.jpg" src="http://www.jsdaima.com/Upload/1409909522/s2.jpg" onmousemove="preview(this);"></li> <li><img alt="佳能" bimg="http://www.jsdaima.com/Upload/1409909522/b3.jpg" src="http://www.jsdaima.com/Upload/1409909522/s3.jpg" onmousemove="preview(this);"></li> <li><img alt="佳能" bimg="http://www.jsdaima.com/Upload/1409909522/b1.jpg" src="http://www.jsdaima.com/Upload/1409909522/s1.jpg" onmousemove="preview(this);"></li> <li><img alt="佳能" bimg="http://www.jsdaima.com/Upload/1409909522/b3.jpg" src="http://www.jsdaima.com/Upload/1409909522/s3.jpg" onmousemove="preview(this);"></li> <li><img alt="佳能" bimg="http://www.jsdaima.com/Upload/1409909522/b1.jpg" src="http://www.jsdaima.com/Upload/1409909522/s1.jpg" onmousemove="preview(this);"></li> <li><img alt="佳能" bimg="http://www.jsdaima.com/Upload/1409909522/b2.jpg" src="http://www.jsdaima.com/Upload/1409909522/s2.jpg" onmousemove="preview(this);"></li> <li><img alt="佳能" bimg="http://www.jsdaima.com/Upload/1409909522/b1.jpg" src="http://www.jsdaima.com/Upload/1409909522/s1.jpg" onmousemove="preview(this);"></li> <li><img alt="佳能" bimg="http://www.jsdaima.com/Upload/1409909522/b2.jpg" src="http://www.jsdaima.com/Upload/1409909522/s2.jpg" onmousemove="preview(this);"></li> <li><img alt="佳能" bimg="http://www.jsdaima.com/Upload/1409909522/b2.jpg" src="http://www.jsdaima.com/Upload/1409909522/s2.jpg" onmousemove="preview(this);"></li> <li><img alt="佳能" bimg="http://www.jsdaima.com/Upload/1409909522/b1.jpg" src="http://www.jsdaima.com/Upload/1409909522/s1.jpg" onmousemove="preview(this);"></li> <li><img alt="佳能" bimg="http://www.jsdaima.com/Upload/1409909522/b2.jpg" src="http://www.jsdaima.com/Upload/1409909522/s2.jpg" onmousemove="preview(this);"></li> </ul> </div> </div> <!--缩图结束--> </center>
JS
//鼠标经过预览图片函数 function preview(img){ $("#preview .jqzoom img").attr("src",$(img).attr("src")); $("#preview .jqzoom img").attr("jqimg",$(img).attr("bimg")); } //图片放大镜效果 $(function(){ $(".jqzoom").jqueryzoom({xzoom:380,yzoom:410}); }); //图片预览小图移动效果,页面加载时触发 $(function(){ var tempLength = 0; //临时变量,当前移动的长度 var viewNum = 5; //设置每次显示图片的个数量 var moveNum = 2; //每次移动的数量 var moveTime = 300; //移动速度,毫秒 var scrollDiv = $(".spec-scroll .items ul"); //进行移动动画的容器 var scrollItems = $(".spec-scroll .items ul li"); //移动容器里的集合 var moveLength = scrollItems.eq(0).width() * moveNum; //计算每次移动的长度 var countLength = (scrollItems.length - viewNum) * scrollItems.eq(0).width(); //计算总长度,总个数*单个长度 //下一张 $(".spec-scroll .next").bind("click",function(){ if(tempLength < countLength){ if((countLength - tempLength) > moveLength){ scrollDiv.animate({left:"-=" + moveLength + "px"}, moveTime); tempLength += moveLength; }else{ scrollDiv.animate({left:"-=" + (countLength - tempLength) + "px"}, moveTime); tempLength += (countLength - tempLength); } } }); //上一张 $(".spec-scroll .prev").bind("click",function(){ if(tempLength > 0){ if(tempLength > moveLength){ scrollDiv.animate({left: "+=" + moveLength + "px"}, moveTime); tempLength -= moveLength; }else{ scrollDiv.animate({left: "+=" + tempLength + "px"}, moveTime); tempLength = 0; } } }); });
插件函数 jquery.jqzoom.js
(function($){ $.fn.jqueryzoom = function(options){ var settings = { xzoom: 200,//zoomed width default width yzoom: 200,//zoomed div default width offset: 10, //zoomed div default offset position: "right",//zoomed div default position,offset position is to the right of the image lens:1, //zooming lens over the image,by default is 1; preload: 1 }; if(options) { $.extend(settings, options); } var noalt=''; $(this).hover(function(){ var imageLeft = this.offsetLeft; var imageRight = this.offsetRight; var imageTop = $(this).get(0).offsetTop; var imageWidth = $(this).children('img').get(0).offsetWidth; var imageHeight = $(this).children('img').get(0).offsetHeight; noalt= $(this).children("img").attr("alt"); var bigimage = $(this).children("img").attr("jqimg"); $(this).children("img").attr("alt",''); if($("div.zoomdiv").get().length == 0){ $(this).after("<div class='zoomdiv'><img class='bigimg' src='"+bigimage+"'/></div>"); $(this).append("<div class='jqZoomPup'> </div>"); } if(settings.position == "right"){ if(imageLeft + imageWidth + settings.offset + settings.xzoom > screen.width){ leftpos = imageLeft - settings.offset - settings.xzoom; }else{ leftpos = imageLeft + imageWidth + settings.offset; } }else{ leftpos = imageLeft - settings.xzoom - settings.offset; if(leftpos < 0){ leftpos = imageLeft + imageWidth + settings.offset; } } $("div.zoomdiv").css({ top: imageTop,left: leftpos }); $("div.zoomdiv").width(settings.xzoom); $("div.zoomdiv").height(settings.yzoom); $("div.zoomdiv").show(); if(!settings.lens){ $(this).css('cursor','crosshair'); } $(document.body).mousemove(function(e){ mouse = new MouseEvent(e); /*$("div.jqZoomPup").hide();*/ var bigwidth = $(".bigimg").get(0).offsetWidth; var bigheight = $(".bigimg").get(0).offsetHeight; var scaley ='x'; var scalex= 'y'; if(isNaN(scalex)|isNaN(scaley)){ var scalex = (bigwidth/imageWidth); var scaley = (bigheight/imageHeight); $("div.jqZoomPup").width((settings.xzoom)/scalex ); $("div.jqZoomPup").height((settings.yzoom)/scaley); if(settings.lens){ $("div.jqZoomPup").css('visibility','visible'); } } xpos = mouse.x - $("div.jqZoomPup").width()/2 - imageLeft; ypos = mouse.y - $("div.jqZoomPup").height()/2 - imageTop ; if(settings.lens){ xpos = (mouse.x - $("div.jqZoomPup").width()/2 < imageLeft ) ? 0 : (mouse.x + $("div.jqZoomPup").width()/2 > imageWidth + imageLeft ) ? (imageWidth -$("div.jqZoomPup").width() -2) : xpos; ypos = (mouse.y - $("div.jqZoomPup").height()/2 < imageTop ) ? 0 : (mouse.y + $("div.jqZoomPup").height()/2 > imageHeight + imageTop ) ? (imageHeight - $("div.jqZoomPup").height() -2 ) : ypos; } if(settings.lens){ $("div.jqZoomPup").css({ top: ypos,left: xpos }); } scrolly = ypos; $("div.zoomdiv").get(0).scrollTop = scrolly * scaley; scrollx = xpos; $("div.zoomdiv").get(0).scrollLeft = (scrollx) * scalex ; }); },function(){ $(this).children("img").attr("alt",noalt); $(document.body).unbind("mousemove"); if(settings.lens){ $("div.jqZoomPup").remove(); } $("div.zoomdiv").remove(); }); count = 0; if(settings.preload){ $('body').append("<div style='display:none;' class='jqPreload"+count+"'>sdsdssdsd</div>"); $(this).each(function(){ var imagetopreload= $(this).children("img").attr("jqimg"); var content = jQuery('div.jqPreload'+count+'').html(); jQuery('div.jqPreload'+count+'').html(content+'<img src=\"'+imagetopreload+'\">'); }); } } })(jQuery); function MouseEvent(e) { this.x = e.pageX this.y = e.pageY }
