图片放大镜jquery.jqzoom.js使用案例附放大镜图标

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: renzi.mrc@gmail.com
//**************************************************************
(function ($) {
$.fn.jqueryzoom = function (options) {
var settings = {
xzoom: 200, //zoomed width default width
yzoom: 200, //zoomed p default width
offset: 10, //zoomed p default offset
position: "right",//zoomed p 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");
$(this).children("img").attr("alt", '');
if ($("p.zoomp").get().length == 0)
{
$(this).after("<p class='zoomp'><img class='bigimg' src='" + bigimage + "'/></p>");
$(this).append("<p class='jqZoomPup'> </p>");
}
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;
}
}
$("p.zoomp").css({ top: imageTop, left: leftpos });
$("p.zoomp").width(settings.xzoom);
$("p.zoomp").height(settings.yzoom);
$("p.zoomp").show();
if (!settings.lens)
{
$(this).css('cursor', 'crosshair');
}
$(document.body).mousemove(function (e) {
mouse = new MouseEvent(e);
/*$("p.jqZoomPup").hide();*/
var bigwidth = $(".bigimg").get(0).offsetWidth;
var bigheight = $(".bigimg").get(0).offsetHeight;
var scaley = 'x';
var scalex = 'y';
if (isNaN(scalex)   
关键词：图片放大镜jquery.jqzoom.js运用案例附放大镜图标