(function($) {
$.fn.jqueryzoom = function(options) {
var settings = {
xzoom: 150,
yzoom: 100,
offset: 10,
position: "right",
lens: 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("zoompic");
$(this).children("img").attr("alt", '');
if ($("div.zoomdiv").get().length == 0) {
$(this).after("
");
$(this).append("
")
}
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(300);
$("div.zoomdiv").height(250);
$("div.zoomdiv").show();
if (!settings.lens) {
$(this).css('cursor', 'crosshair')
}
$(document.body).mousemove(function(e) {
mouse = new MouseEvent(e);
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+20);
$("div.jqZoomPup").height((settings.yzoom) / scaley+20);
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("loading
");
$(this).each(function() {
var imagetopreload = $(this).children("img").attr("zoompic");
var content = jQuery('div.jqPreload' + count + '').html();
jQuery('div.jqPreload' + count + '').html(content
+ '')
})
}
}
})(jQuery);
function MouseEvent(e) {
this.x = e.pageX;
this.y = e.pageY
}