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(function($){$.imgAreaSelect={onKeyPress:null};$.imgAreaSelect.init=function(img,options){var $img=$(img),imgLoaded,$box=$('<div />'),$area=$('<div />'),$border1=$('<div />'),$border2=$('<div />'),$areaOpera,$outLeft=$('<div />'),$outTop=$('<div />'),$outRight=$('<div />'),$outBottom=$('<div />'),$handles=$([]),handleWidth,handles=[],left,top,M=Math,imgOfs,imgWidth,imgHeight,$parent,parOfs,zIndex=0,position='absolute',$p,startX,startY,scaleX=1,scaleY=1,resizeMargin=10,resize=[],V=0,H=1,d,aspectRatio,x1,x2,y1,y2,x,y,adjusted,shown,i,selection={x1:0,y1:0,x2:0,y2:0,width:0,height:0};var $o=$outLeft.add($outTop).add($outRight).add($outBottom);function viewX(x){return x+imgOfs.left-parOfs.left}function viewY(y){return y+imgOfs.top-parOfs.top}function selX(x){return x-imgOfs.left+parOfs.left}function selY(y){return y-imgOfs.top+parOfs.top}function evX(event){return event.pageX-parOfs.left}function evY(event){return event.pageY-parOfs.top}function trueSelection(){return{x1:M.round(selection.x1*scaleX),y1:M.round(selection.y1*scaleY),x2:M.round(selection.x2*scaleX),y2:M.round(selection.y2*scaleY),width:M.round(selection.x2*scaleX)-M.round(selection.x1*scaleX),height:M.round(selection.y2*scaleY)-M.round(selection.y1*scaleY)}}function getZIndex(){$p=$img;while($p.length&&!$p.is('body')){if(!isNaN($p.css('z-index'))&&$p.css('z-index')>zIndex)zIndex=$p.css('z-index');if($p.css('position')=='fixed')position='fixed';$p=$p.parent()}if(!isNaN(options.zIndex))zIndex=options.zIndex}function adjust(){imgOfs={left:M.round($img.offset().left),top:M.round($img.offset().top)};imgWidth=$img.width();imgHeight=$img.height();if($().jquery=='1.3.2'&&$.browser.safari&&position=='fixed'){imgOfs.top+=M.max(document.documentElement.scrollTop,$('body').scrollTop());imgOfs.left+=M.max(document.documentElement.scrollLeft,$('body').scrollLeft())}parOfs=$.inArray($parent.css('position'),['absolute','relative'])!=-1?{left:M.round($parent.offset().left)-$parent.scrollLeft(),top:M.round($parent.offset().top)-$parent.scrollTop()}:position=='fixed'?{left:$(document).scrollLeft(),top:$(document).scrollTop()}:{left:0,top:0};left=viewX(0);top=viewY(0)}function update(resetKeyPress){if(!shown)return;$box.css({left:viewX(selection.x1)+'px',top:viewY(selection.y1)+'px',width:selection.width+'px',height:selection.height+'px'});$area.add($border1).add($border2).css({left:'0px',top:'0px',width:M.max(selection.width-options.borderWidth*2,0)+'px',height:M.max(selection.height-options.borderWidth*2,0)+'px'});$border1.css({borderStyle:'solid',borderColor:options.borderColor1});$border2.css({borderStyle:'dashed',borderColor:options.borderColor2});$border1.add($border2).css({opacity:options.borderOpacity});$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'});$outBottom.css({left:left+selection.x1+'px',top:top+selection.y2+'px',width:selection.width+'px',height:imgHeight-selection.y2+'px'});if(handles.length){handles[1].css({left:selection.width-handleWidth+'px'});handles[2].css({left:selection.width-handleWidth+'px',top:selection.height-handleWidth+'px'});handles[3].css({top:selection.height-handleWidth+'px'});if(handles.length==8){handles[4].css({left:(selection.width-handleWidth)/2+'px'});handles[5].css({left:selection.width-handleWidth+'px',top:(selection.height-handleWidth)/2+'px'});handles[6].css({left:(selection.width-handleWidth)/2+'px',top:selection.height-handleWidth+'px'});handles[7].css({top:(selection.height-handleWidth)/2+'px'})}}if(resetKeyPress!==false){if($.imgAreaSelect.keyPress!=docKeyPress)$(document).unbind($.imgAreaSelect.keyPress,$.imgAreaSelect.onKeyPress);if(options.keys)$(document).bind($.imgAreaSelect.keyPress,$.imgAreaSelect.onKeyPress=docKeyPress)}if($.browser.msie&&options.borderWidth==1&&options.borderOpacity<1){$border1.add($border2).css('margin','0');setTimeout(function(){$border1.add($border2).css('margin','auto')},0)}}function areaMouseMove(event){if(!adjusted){adjust();adjusted=true;$box.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'}$box.css('cursor',resize.length?resize.join('')+'-resize':options.movable?'move':'');if($areaOpera)$areaOpera.toggle()}function docMouseUp(event){resize=[];$('body').css('cursor','');if(options.autoHide||selection.width*selection.height==0)$box.add($o).hide();options.onSelectEnd(img,trueSelection());$(document).unbind('mousemove',selectingMouseMove);$box.mousemove(areaMouseMove)}function areaMouseDown(event){if(event.which!=1)return false;adjust();if(options.resizable&&resize.length>0){$('body').css('cursor',resize.join('')+'-resize');x1=viewX(selection[resize[H]=='w'?'x2':'x1']);y1=viewY(selection[resize[V]=='n'?'y2':'y1']);$(document).mousemove(selectingMouseMove).one('mouseup',docMouseUp);$box.unbind('mousemove',areaMouseMove)}else if(options.movable){startX=left+selection.x1-evX(event);startY=top+selection.y1-evY(event);$box.unbind('mousemove',areaMouseMove);$(document).mousemove(movingMouseMove).one('mouseup',function(){options.onSelectEnd(img,trueSelection());$(document).unbind('mousemove',movingMouseMove);$box.mousemove(areaMouseMove)})}else $img.mousedown(event);return false}function aspectRatioXY(){x2=M.max(left,M.min(left+imgWidth,x1+M.abs(y2-y1)*aspectRatio*(x2<x1?-1:1)));y2=M.round(M.max(top,M.min(top+imgHeight,y1+M.abs(x2-x1)/aspectRatio*(y2<y1?-1:1))));x2=M.round(x2)}function aspectRatioYX(){y2=M.max(top,M.min(top+imgHeight,y1+M.abs(x2-x1)/aspectRatio*(y2<y1?-1:1)));x2=M.round(M.max(left,M.min(left+imgWidth,x1+M.abs(y2-y1)*aspectRatio*(x2<x1?-1:1))));y2=M.round(y2)}function doResize(){if(options.minWidth&&M.abs(x2-x1)<options.minWidth){x2=x1-options.minWidth*(x2<x1?1:-1);if(x2<left)x1=left+options.minWidth;else if(x2>left+imgWidth)x1=left+imgWidth-options.minWidth}if(options.minHeight&&M.abs(y2-y1)<options.minHeight){y2=y1-options.minHeight*(y2<y1?1:-1);if(y2<top)y1=top+options.minHeight;else if(y2>top+imgHeight)y1=top+imgHeight-options.minHeight}x2=M.max(left,M.min(x2,left+imgWidth));y2=M.max(top,M.min(y2,top+imgHeight));if(aspectRatio)if(M.abs(x2-x1)/aspectRatio>M.abs(y2-y1))aspectRatioYX();else aspectRatioXY();if(options.maxWidth&&M.abs(x2-x1)>options.maxWidth){x2=x1-options.maxWidth*(x2<x1?1:-1);if(aspectRatio)aspectRatioYX()}if(options.maxHeight&&M.abs(y2-y1)>options.maxHeight){y2=y1-options.maxHeight*(y2<y1?1:-1);if(aspectRatio)aspectRatioXY()}selection={x1:selX(M.min(x1,x2)),x2:selX(M.max(x1,x2)),y1:selY(M.min(y1,y2)),y2:selY(M.max(y1,y2)),width:M.abs(x2-x1),height:M.abs(y2-y1)};update();options.onSelectChange(img,trueSelection())}function selectingMouseMove(event){x2=!resize.length||resize[H]||aspectRatio?evX(event):viewX(selection.x2);y2=!resize.length||resize[V]||aspectRatio?evY(event):viewY(selection.y2);doResize();return false}function doMove(newX1,newY1){x2=(x1=newX1)+selection.width;y2=(y1=newY1)+selection.height;selection=$.extend(selection,{x1:selX(x1),y1:selY(y1),x2:selX(x2),y2:selY(y2)});update();options.onSelectChange(img,trueSelection())}function movingMouseMove(event){x1=M.max(left,M.min(startX+evX(event),left+imgWidth-selection.width));y1=M.max(top,M.min(startY+evY(event),top+imgHeight-selection.height));doMove(x1,y1);event.preventDefault();return false}function startSelection(event){adjust();x2=x1;y2=y1;doResize();resize=[];$box.add($o.is(':visible')?null:$o).show();shown=true;$(document).unbind('mouseup',cancelSelection).mousemove(selectingMouseMove).one('mouseup',docMouseUp);$box.unbind('mousemove',areaMouseMove);options.onSelectStart(img,trueSelection())}function cancelSelection(){$(document).unbind('mousemove',startSelection);$box.add($o).hide();selection={x1:0,y1:0,x2:0,y2:0,width:0,height:0};options.onSelectChange(img,selection);options.onSelectEnd(img,selection)}function imgMouseDown(event){if(event.which!=1)return false;adjust();startX=x1=evX(event);startY=y1=evY(event);$(document).one('mousemove',startSelection).one('mouseup',cancelSelection);return false}function parentScroll(){adjust();update(false);x1=viewX(selection.x1);y1=viewY(selection.y1);x2=viewX(selection.x2);y2=viewY(selection.y2)}function imgLoad(){imgLoaded=true;if(options.show){shown=true;adjust();update();$box.add($o).show()}$box.add($o).css({visibility:''})}var docKeyPress=function(event){var k=options.keys,d,t,key=event.keyCode||event.which;d=!isNaN(k.alt)&&(event.altKey||event.originalEvent.altKey)?k.alt:!isNaN(k.ctrl)&&event.ctrlKey?k.ctrl:!isNaN(k.shift)&&event.shiftKey?k.shift:!isNaN(k.arrows)?k.arrows:10;if(k.arrows=='resize'||(k.shift=='resize'&&event.shiftKey)||(k.ctrl=='resize'&&event.ctrlKey)||(k.alt=='resize'&&(event.altKey||event.originalEvent.altKey))){switch(key){case 37:d=-d;case 39:t=M.max(x1,x2);x1=M.min(x1,x2);x2=M.max(t+d,x1);if(aspectRatio)aspectRatioYX();break;case 38:d=-d;case 40:t=M.max(y1,y2);y1=M.min(y1,y2);y2=M.max(t+d,y1);if(aspectRatio)aspectRatioXY();break;default:return}doResize()}else{x1=M.min(x1,x2);y1=M.min(y1,y2);switch(key){case 37:doMove(M.max(x1-d,left),y1);break;case 38:doMove(x1,M.max(y1-d,top));break;case 39:doMove(x1+M.min(d,imgWidth-selX(x2)),y1);break;case 40:doMove(x1,y1+M.min(d,imgHeight-selY(y2)));break;default:return}}return false};this.setOptions=function(newOptions){if(newOptions.parent)($parent=$(newOptions.parent)).append($box.add($o));adjust();getZIndex();if(newOptions.x1!=null){selection={x1:newOptions.x1,y1:newOptions.y1,x2:newOptions.x2,y2:newOptions.y2};newOptions.show=!newOptions.hide;x1=viewX(selection.x1);y1=viewY(selection.y1);x2=viewX(selection.x2);y2=viewY(selection.y2);selection.width=x2-x1;selection.height=y2-y1}if(newOptions.handles!=null){$handles.remove();$handles=$(handles=[]);i=newOptions.handles?newOptions.handles=='corners'?4:8:0;while(i--)$handles=$handles.add(handles[i]=$('<div />'));handleWidth=4+options.borderWidth;$handles.css({position:'absolute',borderWidth:options.borderWidth+'px',borderStyle:'solid',borderColor:options.borderColor1,opacity:options.borderOpacity,backgroundColor:options.borderColor2,width:handleWidth+'px',height:handleWidth+'px',fontSize:'0px',zIndex:zIndex>0?zIndex+1:'1'}).addClass(options.classPrefix+'-handle');handleWidth+=options.borderWidth*2}update();options=$.extend(options,newOptions);if(options.imageWidth||options.imageHeight){scaleX=(parseInt(options.imageWidth)||imgWidth)/imgWidth;scaleY=(parseInt(options.imageHeight)||imgHeight)/imgHeight}if(newOptions.keys)options.keys=$.extend({shift:1,ctrl:'resize'},newOptions.keys===true?{}:newOptions.keys);$o.addClass(options.classPrefix+'-outer');$area.addClass(options.classPrefix+'-selection');$border1.addClass(options.classPrefix+'-border1');$border2.addClass(options.classPrefix+'-border2');$box.add($area).add($border1).add($border2).css({borderWidth:options.borderWidth+'px'});$area.css({backgroundColor:options.selectionColor,opacity:options.selectionOpacity});$border1.css({borderStyle:'solid',borderColor:options.borderColor1});$border2.css({borderStyle:'dashed',borderColor:options.borderColor2});$border1.add($border2).css({opacity:options.borderOpacity});$o.css({opacity:options.outerOpacity,backgroundColor:options.outerColor});$box.append($area.add($border1).add($border2).add($handles).add($areaOpera));if(newOptions.hide)$box.add($o).hide();else if(newOptions.show&&imgLoaded){shown=true;update();$box.add($o).show()}aspectRatio=options.aspectRatio&&(d=options.aspectRatio.split(/:/))?d[0]/d[1]:null;if(aspectRatio)if(options.minWidth)options.minHeight=parseInt(options.minWidth/aspectRatio);else if(options.minHeight)options.minWidth=parseInt(options.minHeight*aspectRatio);if(options.disable||options.enable===false){$box.unbind('mousemove',areaMouseMove).unbind('mousedown',areaMouseDown);$img.add($o).unbind('mousedown',imgMouseDown);$(window).unbind('resize',parentScroll);$img.add($img.parents()).unbind('scroll',parentScroll)}else if(options.enable||options.disable===false){if(options.resizable||options.movable)$box.mousemove(areaMouseMove).mousedown(areaMouseDown);if(!options.persistent)$img.add($o).mousedown(imgMouseDown);$(window).resize(parentScroll);$img.add($img.parents()).scroll(parentScroll)}options.enable=options.disable=undefined};if($.browser.msie)$img.attr('unselectable','on');$.imgAreaSelect.keyPress=$.browser.msie||$.browser.safari?'keydown':'keypress';if($.browser.opera)($areaOpera=$('<div style="width: 100%; height: 100%; position: absolute;" />')).css({zIndex:zIndex>0?zIndex+2:'2'});this.setOptions(options=$.extend({borderColor1:'#000',borderColor2:'#fff',borderWidth:1,borderOpacity:.5,classPrefix:'imgareaselect',movable:true,resizable:true,selectionColor:'#fff',selectionOpacity:0,outerColor:'#000',outerOpacity:.4,parent:'body',onSelectStart:function(){},onSelectChange:function(){},onSelectEnd:function(){}},options));$box.add($o).css({visibility:'hidden',position:position,overflow:'hidden',zIndex:zIndex>0?zIndex:'0'});$area.css({borderStyle:'solid'});$box.css({position:position,zIndex:zIndex>0?zIndex+2:'2'});$area.add($border1).add($border2).css({position:'absolute'});img.complete||img.readyState=='complete'||!$img.is('img')?imgLoad():$img.one('load',imgLoad)};$.fn.imgAreaSelect=function(options){options=options||{};this.each(function(){if($(this).data('imgAreaSelect'))$(this).data('imgAreaSelect').setOptions(options);else{if(options.enable===undefined&&options.disable===undefined)options.enable=true;$(this).data('imgAreaSelect',new $.imgAreaSelect.init(this,options))}});return this}})(jQuery);
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