电子商务图片放大jqzoom
http://www.mind-projects.it/ 官网 地址下载jqzoom.js 最流行的图片放大镜
jqzoom插件实现图片放大镜效果。
图1.1jqzoom插件实现图片放大镜效果
1、引入jqurty和jqzoom插件
- <script src="/js/common/jquery-1.6.2.js" type="text/javascript"></script>
- <script src="/js/common/jquery.jqzoom.js" type="text/javascript"></script>
<script src="/js/common/jquery-1.6.2.js" type="text/javascript"></script> <script src="/js/common/jquery.jqzoom.js" type="text/javascript"></script>
2、应用官方网站给定的样式
- /*jQzoom*/
- .jqzoom{
- border:1px solid #BBB;
- float:left;
- position:relative;
- padding:0px;
- cursor:pointer;
- }
- div.zoomdiv {
- z-index: 999;
- position : absolute;
- top:0px;
- left:0px;
- width : 200px;
- height : 200px;
- background: #ffffff;
- border:1px solid #CCCCCC;
- display:none;
- text-align: center;
- overflow: hidden;
- }
- div.jqZoomPup {
- z-index : 999;
- visibility : hidden;
- position : absolute;
- top:0px;
- left:0px;
- width : 50px;
- height : 50px;
- border: 1px solid #aaa;
- background: #ffffff url(/images/shopping/zoomlens.gif) 50% top no-repeat;
- opacity: 0.5;
- -moz-opacity: 0.5;
- -khtml-opacity: 0.5;
- filter: alpha(Opacity=50);
- }
/*jQzoom*/
.jqzoom{
border:1px solid #BBB;
float:left;
position:relative;
padding:0px;
cursor:pointer;
}
div.zoomdiv {
z-index: 999;
position : absolute;
top:0px;
left:0px;
width : 200px;
height : 200px;
background: #ffffff;
border:1px solid #CCCCCC;
display:none;
text-align: center;
overflow: hidden;
}
div.jqZoomPup {
z-index : 999;
visibility : hidden;
position : absolute;
top:0px;
left:0px;
width : 50px;
height : 50px;
border: 1px solid #aaa;
background: #ffffff url(/images/shopping/zoomlens.gif) 50% top no-repeat;
opacity: 0.5;
-moz-opacity: 0.5;
-khtml-opacity: 0.5;
filter: alpha(Opacity=50);
}
3、编写HTML代码
- <div class="jqzoom">
- <img src="/images/shopping/pro_img/blue_one_small.jpg" style="width:300px; height:300px;" alt="" jqimg="/images/shopping/pro_img/blue_one_big.jpg" id="bigImg"/>
- </div>
<div class="jqzoom">
<img src="/images/shopping/pro_img/blue_one_small.jpg" style="width:300px; height:300px;" alt="" jqimg="/images/shopping/pro_img/blue_one_big.jpg" id="bigImg"/>
</div>
其中，在HTML代码中添加该插件自定义的jqimg属性，值为大图的文件路径。
4、查看官方网站的API使用说明，可以写出如下JS代码
- /*使用jqzoom*/
- $(function() {
- $(".jqzoom").jqueryzoom({
- xzoom: 300, //放大图的宽度(默认是 200)
- yzoom: 300, //放大图的高度(默认是 200)
- offset: 10, //离原图的距离(默认是 10)
- position: "right", //放大图的定位(默认是 "right")
- preload: 1
- });
- });
/*使用jqzoom*/
$(function() {
$(".jqzoom").jqueryzoom({
xzoom: 300, //放大图的宽度(默认是 200)
yzoom: 300, //放大图的高度(默认是 200)
offset: 10, //离原图的距离(默认是 10)
position: "right", //放大图的定位(默认是 "right")
preload: 1
});
});
* 附件
附件1：jquery.jqzoom.js
- //**************************************************************
- // jQZoom allows you to realize a small magnifier window,close
- // to the image or images on your web page easily.
- //
- // jqZoom version 2.2
- // Author Doc. Ing. Renzi Marco(www.mind-projects.it)
- // First Release on Dec 05 2007
- // i'm looking for a job,pick me up!!!
- // mail: [email protected]
- //**************************************************************
- (function($){
- $.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).offset().left;
- var imageTop = $(this).offset().top;
- 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= $(this).children("img").attr("jqimg");
- var content = jQuery('div.jqPreload'+count+'').html();
- jQuery('div.jqPreload'+count+'').html(content+'<img src=\"'+imagetopreload+'\">');
- });
- }
- }
- })(jQuery);
- function MouseEvent(e) {
- this.x = e.pageX;
- this.y = e.pageY;
- }
//************************************************************** // jQZoom allows you to realize a small magnifier window,close // to the image or images on your web page easily. // // jqZoom version 2.2 // Author Doc. Ing. Renzi Marco(www.mind-projects.it) // First Release on Dec 05 2007 // i'm looking for a job,pick me up!!! // mail: [email protected] //************************************************************** (function($){ $.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).offset().left; var imageTop = $(this).offset().top; 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; }
附件2：放大镜图标（zoomlens.gif）
