imageselect.jsp
<%@ page contentType="text/html; charset=UTF-8" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<base href="http://localhost:8080/dojodemo/" />
<title>剪裁</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<style type="text/css">
em {background: url(http://static.l99.com/skin/default/images/miniblog/hover.png) no-repeat;width:180px;height:60px;position:absolute;top:-85px;left:-85px;text-align:center;padding: 10px 12px 10px;font-style:normal;z-index:2;display:none;}
em button {background-color:#CCCCCC;border:1px solid #999999;color:#000000;cursor:pointer;font-size:12px;height:20px;width:50px;}
.adelete{position:relative;}
div.imgcutDiv {margin: 30px auto;width: 320px;text-align: center;}
div.imgcutDiv a {margin:0 10px;float:left;}
</style>
</head>
<body>
<div class="tagBt_down">
<div class="con_title">
剪裁头像
</div>
<div class="con_fill">
<div class="container">
<p>
<img id="ferret" src="http://blog.btbbt.com/attachments/2008/07/1510243_200807062233495.jpg"
alt="loading IMG ......"
title="image select"
style="float: left; margin-right: 10px;"/>
</p>
</div>
<div class="clear"></div>
<div class="imgcutDiv">
<form action="cutImg.action" method="post" id="cutImgForm">
<input type="hidden" id="cutImageW" name="imgWidth" />
<input type="hidden" id="cutImageH" name="imgHeight" />
<input type="hidden" id="cutImageX" name="imgTop" />
<input type="hidden" id="cutImageY" name="imgLeft" />
<input type="hidden" value="avatars.id" name="avatarsId" />
<a id="img_cut_fb" href="javascript:void(0);" class="bt_22">确认剪裁</a>
<a href="javascript:history.go(-1);" class="bt_2">取消剪裁</a>
</form>
</div>
</div>
</div>
<script type="text/javascript" src="js/jquery-1.2.6.pack.js?ver=20080814"></script>
<script type="text/javascript" src="js/jquery.imgareaselect-0.5.js?ver=20080913"></script>
<script type="text/javascript">
var imageW = 537;
var imageH = 681;
function preview(img, selection){
showCut(selection.width,selection.height,selection.x1,selection.y1);
}
function showCut(w,h,x,y){
var scaleX = 200 / w;
var scaleY = 222 / h;
$('#ferret + div > img').css({ width: Math.round(scaleX * imageW) + 'px', height: Math.round(scaleY * imageH) + 'px', marginLeft: '-' + Math.round(scaleX * x) + 'px', marginTop: '-' + Math.round(scaleY * y) + 'px' });
$('input#cutImageW').val(w);
$('input#cutImageH').val(h);
$('input#cutImageX').val(x);
$('input#cutImageY').val(y);
}
$(document).ready(function () {
$('<div><img src="http://blog.btbbt.com/attachments/2008/07/1510243_200807062233495.jpg" style="position: relative;" /></div>')
.css({ float: 'left', position: 'relative', overflow: 'hidden', width: '200px', height: '222px' })
.insertAfter($('#ferret'));
imageW = $('#ferret + div > img').width();
imageH = $('#ferret + div > img').height();
$("form > a#img_cut_fb").click(function(){
if(confirm('确任剪切吗？')){
alert("width: " + $('input#cutImageW').val() + "height: " + $('input#cutImageH').val() + "left: " + $('input#cutImageX').val() + "top: " + $('input#cutImageY').val());
}
});
});
$(window).load(function () {
$('img#ferret').imgAreaSelect({ selectionOpacity: 0,minWidth:90,minHeight:100,outerOpacity:'0.5', selectionColor: 'blue', aspectRatio:'9:10',x1: 10, y1: 10, x2: 100, y2: 110,onSelectChange: preview });
showCut(90,100,10,10);
});
</script>
</body>
</html>
jquery.imgareaselect-0.5.js
/*
* imgAreaSelect jQuery plugin
* version 0.5
*
* Copyright (c) 2008 Michal Wojciechowski (odyniec.net)
*
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
*
* http://odyniec.net/projects/imgareaselect/
*
*/
jQuery.imgAreaSelect = function (img, options) {
var $area = jQuery('<div></div>'),
$border1 = jQuery('<div></div>'),
$border2 = jQuery('<div></div>'),
$outLeft = jQuery('<div></div>'),
$outTop = jQuery('<div></div>'),
$outRight = jQuery('<div></div>'),
$outBottom = jQuery('<div></div>'),
left, top, imgOfs, imgWidth, imgHeight, parent, parOfs, adjusted,
zIndex = 0, fixed, $p,
startX, startY, moveX, moveY,
resizeMargin = 10, resize = [ ], V = 0, H = 1,
d, aspectRatio,
x1, x2, y1, y2, x, y,
selection = { x1: 0, y1: 0, x2: 0, y2: 0, width: 0, height: 0 };
var $a = $area.add($border1).add($border2);
var $o = $outLeft.add($outTop).add($outRight).add($outBottom);
function viewX(x)
{
return x + imgOfs.left + parent.scrollLeft - parOfs.left;
}
function viewY(y)
{
return y + imgOfs.top + parent.scrollTop - parOfs.top;
}
function selX(x)
{
return x - imgOfs.left - parent.scrollLeft + parOfs.left;
}
function selY(y)
{
return y - imgOfs.top - parent.scrollTop + parOfs.top;
}
function evX(event)
{
return event.pageX + parent.scrollLeft - parOfs.left;
}
function evY(event)
{
return event.pageY + parent.scrollTop - parOfs.top;
}
function adjust()
{
imgOfs = jQuery(img).offset();
imgWidth = jQuery(img).width();
imgHeight = jQuery(img).height();
parOfs = jQuery(parent).is('body') ? { left: 0, top: 0 } :
jQuery(parent).offset();
left = viewX(0);
top = viewY(0);
}
function update()
{
$a.css({
left: viewX(selection.x1) + 'px',
top: viewY(selection.y1) + 'px',
width: Math.max(selection.width - options.borderWidth * 2, 0) + 'px',
height: Math.max(selection.height - options.borderWidth * 2, 0) + 'px'
});
$outLeft.css({ left: left + 'px', top: top + 'px',
width: selection.x1 + 'px', height: imgHeight + 'px' });
$outTop.css({ left: left + selection.x1 + 'px', top: top + 'px',
width: selection.width + 'px', height: selection.y1 + 'px' });
$outRight.css({ left: left + selection.x2 + 'px', top: top + 'px',
width: imgWidth - selection.x2 + 'px', height: imgHeight + 'px' });
$outBottom.css({ left: left + selection.x1 + 'px', top: top + selection.y2 + 'px',
width: selection.width + 'px', height: imgHeight - selection.y2 + 'px' });
}
function areaMouseMove(event)
{
if (!adjusted) {
adjust();
adjusted = true;
$a.one('mouseout', function () {
adjusted = false;
});
}
x = selX(evX(event)) - selection.x1;
y = selY(evY(event)) - selection.y1;
resize = [ ];
if (options.resizable) {
if (y <= resizeMargin)
resize[V] = 'n';
else if (y >= selection.height - resizeMargin)
resize[V] = 's';
if (x <= resizeMargin)
resize[H] = 'w';
else if (x >= selection.width - resizeMargin)
resize[H] = 'e';
}
$border2.css('cursor', resize.length ? resize.join('') + '-resize' :
options.movable ? 'move' : '');
}
function areaMouseDown(event)
{
if (event.which != 1) return false;
adjust();
if (options.resizable && resize.length > 0) {
jQuery('body').css('cursor', resize.join('') + '-resize');
x1 = viewX(resize[H] == 'w' ? selection.x2 : selection.x1);
y1 = viewY(resize[V] == 'n' ? selection.y2 : selection.y1);
jQuery(document).mousemove(selectingMouseMove);
$border2.unbind('mousemove', areaMouseMove);
jQuery(document).one('mouseup', function () {
resize = [ ];
jQuery('body').css('cursor', '');
if (options.autoHide)
$a.add($o).hide();
options.onSelectEnd(img, selection);
jQuery(document).unbind('mousemove', selectingMouseMove);
$border2.mousemove(areaMouseMove);
});
}
else if (options.movable) {
moveX = selection.x1 + left;
moveY = selection.y1 + top;
startX = evX(event);
startY = evY(event);
jQuery(document)
.mousemove(movingMouseMove)
.one('mouseup', function () {
options.onSelectEnd(img, selection);
jQuery(document).unbind('mousemove', movingMouseMove);
});
}
else
jQuery(img).mousedown(event);
return false;
}
function aspectRatioXY()
{
x2 = Math.max(left, Math.min(left + imgWidth,
x1 + Math.abs(y2 - y1) * aspectRatio * (x2 > x1 ? 1 : -1)));
y2 = Math.round(Math.max(top, Math.min(top + imgHeight,
y1 + Math.abs(x2 - x1) / aspectRatio * (y2 > y1 ? 1 : -1))));
x2 = Math.round(x2);
}
function aspectRatioYX()
{
y2 = Math.max(top, Math.min(top + imgHeight,
y1 + Math.abs(x2 - x1) / aspectRatio * (y2 > y1 ? 1 : -1)));
x2 = Math.round(Math.max(left, Math.min(left + imgWidth,
x1 + Math.abs(y2 - y1) * aspectRatio * (x2 > x1 ? 1 : -1))));
y2 = Math.round(y2);
}
function selectingMouseMove(event)
{
x2 = !resize.length || resize[H] || aspectRatio ? evX(event) : viewX(selection.x2);
y2 = !resize.length || resize[V] || aspectRatio ? evY(event) : viewY(selection.y2);
if (options.minWidth && Math.abs(x2 - x1) < options.minWidth) {
x2 = x1 - options.minWidth * (x2 < x1 ? 1 : -1);
if (x2 < left)
x1 = left + options.minWidth;
else if (x2 > left + imgWidth)
x1 = left + imgWidth - options.minWidth;
}
if (options.minHeight && Math.abs(y2 - y1) < options.minHeight) {
y2 = y1 - options.minHeight * (y2 < y1 ? 1 : -1);
if (y2 < top)
y1 = top + options.minHeight;
else if (y2 > top + imgHeight)
y1 = top + imgHeight - options.minHeight;
}
x2 = Math.max(left, Math.min(x2, left + imgWidth));
y2 = Math.max(top, Math.min(y2, top + imgHeight));
if (aspectRatio)
if (Math.abs(x2 - x1) / aspectRatio > Math.abs(y2 - y1))
aspectRatioYX();
else
aspectRatioXY();
if (options.maxWidth && Math.abs(x2 - x1) > options.maxWidth) {
x2 = x1 - options.maxWidth * (x2 < x1 ? 1 : -1);
if (aspectRatio) aspectRatioYX();
}
if (options.maxHeight && Math.abs(y2 - y1) > options.maxHeight) {
y2 = y1 - options.maxHeight * (y2 < y1 ? 1 : -1);
if (aspectRatio) aspectRatioXY();
}
selection.x1 = selX(Math.min(x1, x2));
selection.x2 = selX(Math.max(x1, x2));
selection.y1 = selY(Math.min(y1, y2));
selection.y2 = selY(Math.max(y1, y2));
selection.width = Math.abs(x2 - x1);
selection.height = Math.abs(y2 - y1);
update();
options.onSelectChange(img, selection);
return false;
}
function movingMouseMove(event)
{
x1 = Math.max(left, Math.min(moveX + evX(event) - startX,
left + imgWidth - selection.width));
y1 = Math.max(top, Math.min(moveY + evY(event) - startY,
top + imgHeight - selection.height));
x2 = x1 + selection.width;
y2 = y1 + selection.height;
selection.x1 = selX(x1);
selection.y1 = selY(y1);
selection.x2 = selX(x2);
selection.y2 = selY(y2);
update();
options.onSelectChange(img, selection);
event.preventDefault();
return false;
}
function imgMouseDown(event)
{
if (event.which != 1) return false;
adjust();
selection.x1 = selection.x2 = selX(startX = x1 = x2 = evX(event));
selection.y1 = selection.y2 = selY(startY = y1 = y2 = evY(event));
selection.width = 0;
selection.height = 0;
resize = [ ];
update();
$a.add($o).show();
jQuery(document).mousemove(selectingMouseMove);
$border2.unbind('mousemove', areaMouseMove);
options.onSelectStart(img, selection);
jQuery(document).one('mouseup', function () {
if (options.autoHide)
$a.add($o).hide();
options.onSelectEnd(img, selection);
jQuery(document).unbind('mousemove', selectingMouseMove);
$border2.mousemove(areaMouseMove);
});
return false;
}
function windowResize()
{
adjust();
update();
}
this.setOptions = function(newOptions)
{
options = jQuery.extend(options, newOptions);
if (newOptions.x1 != null) {
selection.x1 = newOptions.x1;
selection.y1 = newOptions.y1;
selection.x2 = newOptions.x2;
selection.y2 = newOptions.y2;
newOptions.show = true;
}
parent = jQuery(options.parent).get(0);
adjust();
$p = jQuery(img);
while ($p.length && !$p.is('body')) {
if (!isNaN($p.css('z-index')) && $p.css('z-index') > zIndex)
zIndex = $p.css('z-index');
if ($p.css('position') == 'fixed') fixed = true;
$p = $p.parent();
}
x1 = viewX(selection.x1);
y1 = viewY(selection.y1);
x2 = viewX(selection.x2);
y2 = viewY(selection.y2);
selection.width = x2 - x1;
selection.height = y2 - y1;
update();
if (newOptions.hide)
$a.add($o).hide();
else if (newOptions.show)
$a.add($o).show();
$o.addClass(options.classPrefix + '-outer');
$area.addClass(options.classPrefix + '-selection');
$border1.addClass(options.classPrefix + '-border1');
$border2.addClass(options.classPrefix + '-border2');
$a.css({ borderWidth: options.borderWidth + 'px' });
$area.css({ backgroundColor: options.selectionColor, opacity: options.selectionOpacity });
$border1.css({ borderStyle: 'solid', borderColor: options.borderColor1 });
$border2.css({ borderStyle: 'dashed', borderColor: options.borderColor2 });
$o.css({ opacity: options.outerOpacity, backgroundColor: options.outerColor });
aspectRatio = options.aspectRatio && (d = options.aspectRatio.split(/:/)) ?
d[0] / d[1] : null;
if (options.disable || options.enable === false) {
$a.unbind('mousemove', areaMouseMove).unbind('mousedown', areaMouseDown);
jQuery(img).add($o).unbind('mousedown', imgMouseDown);
jQuery(window).unbind('resize', windowResize);
}
else if (options.enable || options.disable === false) {
if (options.resizable || options.movable)
$a.mousemove(areaMouseMove).mousedown(areaMouseDown);
jQuery(img).add($o).mousedown(imgMouseDown);
jQuery(window).resize(windowResize);
}
jQuery(options.parent).append($o.add($a));
options.enable = options.disable = undefined;
};
if (jQuery.browser.msie)
jQuery(img).attr('unselectable', 'on');
$a.add($o).css({ display: 'none', position: fixed ? 'fixed' : 'absolute',
overflow: 'hidden', zIndex: zIndex > 0 ? zIndex : null });
$area.css({ borderStyle: 'solid' });
initOptions = {
borderColor1: '#000',
borderColor2: '#fff',
borderWidth: 1,
classPrefix: 'imgareaselect',
movable: true,
resizable: true,
selectionColor: '#fff',
selectionOpacity: 0.2,
outerColor: '#000',
outerOpacity: 0.2,
parent: 'body',
onSelectStart: function () {},
onSelectChange: function () {},
onSelectEnd: function () {}
};
options = jQuery.extend(initOptions, options);
this.setOptions(options);
};
jQuery.fn.imgAreaSelect = function (options) {
options = options || {};
this.each(function () {
if (jQuery(this).data('imgAreaSelect'))
jQuery(this).data('imgAreaSelect').setOptions(options);
else {
if (options.enable === undefined && options.disable === undefined)
options.enable = true;
jQuery(this).data('imgAreaSelect', new jQuery.imgAreaSelect(this, options));
}
});
return this;
};
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