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205 lines
4.7 KiB
205 lines
4.7 KiB
//**************************************************************
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// jQZoom allows you to realize a small magnifier window,close
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// to the image or images on your web page easily.
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//
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// jqZoom version 2.2
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// Author Doc. Ing. Renzi Marco(www.mind-projects.it)
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// First Release on Dec 05 2007
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// i'm looking for a job,pick me up!!!
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// mail: renzi.mrc@gmail.com
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//**************************************************************
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(function($){
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$.fn.jqueryzoom = function(options){
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var settings = {
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xzoom: 200, //zoomed width default width
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yzoom: 200, //zoomed div default width
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offset: 10, //zoomed div default offset
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position: "right" ,//zoomed div default position,offset position is to the right of the image
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lens:1, //zooming lens over the image,by default is 1;
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preload: 1
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};
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if(options) {
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$.extend(settings, options);
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}
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var noalt='';
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$(this).hover(function(){
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var imageLeft = $(this).offset().left;
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var imageTop = $(this).offset().top;
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var imageWidth = $(this).children('img').get(0).offsetWidth;
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var imageHeight = $(this).children('img').get(0).offsetHeight;
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noalt= $(this).children("img").attr("alt");
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var bigimage = $(this).children("img").attr("jqimg");
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$(this).children("img").attr("alt",'');
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if($("div.zoomdiv").get().length == 0){
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$(this).after("<div class='zoomdiv'><img class='bigimg' src='"+bigimage+"'/></div>");
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$(this).append("<div class='jqZoomPup'> </div>");
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}
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if(settings.position == "right"){
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if(imageLeft + imageWidth + settings.offset + settings.xzoom > screen.width){
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leftpos = imageLeft - settings.offset - settings.xzoom;
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}else{
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leftpos = imageLeft + imageWidth + settings.offset;
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}
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}else{
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leftpos = imageLeft - settings.xzoom - settings.offset;
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if(leftpos < 0){
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leftpos = imageLeft + imageWidth + settings.offset;
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}
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}
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//$("div.zoomdiv").css({ top: imageTop,left: leftpos });
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$("div.zoomdiv").css({ top: 0,left: 486 });
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$("div.zoomdiv").width(settings.xzoom);
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$("div.zoomdiv").height(settings.yzoom);
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$("div.zoomdiv").show();
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if(!settings.lens){
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$(this).css('cursor','crosshair');
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}
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$(document.body).mousemove(function(e){
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mouse = new MouseEvent(e);
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/*$("div.jqZoomPup").hide();*/
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var bigwidth = $(".bigimg").get(0).offsetWidth;
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var bigheight = $(".bigimg").get(0).offsetHeight;
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var scaley ='x';
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var scalex= 'y';
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if(isNaN(scalex)|isNaN(scaley)){
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var scalex = (bigwidth/imageWidth);
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var scaley = (bigheight/imageHeight);
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$("div.jqZoomPup").width((settings.xzoom)/scalex );
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$("div.jqZoomPup").height((settings.yzoom)/scaley);
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if(settings.lens){
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$("div.jqZoomPup").css('visibility','visible');
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}
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}
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xpos = mouse.x - $("div.jqZoomPup").width()/2 - imageLeft;
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ypos = mouse.y - $("div.jqZoomPup").height()/2 - imageTop ;
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if(settings.lens){
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xpos = (mouse.x - $("div.jqZoomPup").width()/2 < imageLeft ) ? 0 : (mouse.x + $("div.jqZoomPup").width()/2 > imageWidth + imageLeft ) ? (imageWidth -$("div.jqZoomPup").width() -2) : xpos;
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ypos = (mouse.y - $("div.jqZoomPup").height()/2 < imageTop ) ? 0 : (mouse.y + $("div.jqZoomPup").height()/2 > imageHeight + imageTop ) ? (imageHeight - $("div.jqZoomPup").height() -2 ) : ypos;
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}
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if(settings.lens){
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$("div.jqZoomPup").css({ top: ypos,left: xpos });
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}
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scrolly = ypos;
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$("div.zoomdiv").get(0).scrollTop = scrolly * scaley;
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scrollx = xpos;
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$("div.zoomdiv").get(0).scrollLeft = (scrollx) * scalex ;
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});
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},function(){
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$(this).children("img").attr("alt",noalt);
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$(document.body).unbind("mousemove");
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if(settings.lens){
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$("div.jqZoomPup").remove();
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}
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$("div.zoomdiv").remove();
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});
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count = 0;
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if(settings.preload){
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$('body').append("<div style='display:none;' class='jqPreload"+count+"'>sdsdssdsd</div>");
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$(this).each(function(){
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var imagetopreload= $(this).children("img").attr("jqimg");
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var content = jQuery('div.jqPreload'+count+'').html();
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jQuery('div.jqPreload'+count+'').html(content+'<img src=\"'+imagetopreload+'\">');
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});
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}
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}
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})(jQuery);
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function MouseEvent(e) {
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this.x = e.pageX;
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this.y = e.pageY;
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}
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