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minecraft-checker/script/blur.js
2017-04-05 08:56:33 +02:00

12 lines
5.5 KiB
JavaScript
Executable file

// Stackblur, courtesy of Mario Klingemann: http://www.quasimondo.com/StackBlurForCanvas/StackBlurDemo.html
(function(l){l.fn.blurjs=function(e){function O(){this.a=this.b=this.g=this.r=0;this.next=null}var y=document.createElement("canvas"),P=!1,H=l(this).selector.replace(/[^a-zA-Z0-9]/g,"");if(y.getContext){var e=l.extend({source:"body",radius:5,overlay:"",offset:{x:0,y:0},optClass:"",cache:!1,cacheKeyPrefix:"blurjs-",draggable:!1,debug:!1},e),R=[512,512,456,512,328,456,335,512,405,328,271,456,388,335,292,512,454,405,364,328,298,271,496,456,420,388,360,335,312,292,273,512,482,454,428,405,383,364,345,
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k|0,M=y.getContext("2d"),l;try{try{l=M.getImageData(0,0,j,q)}catch(L){try{netscape.security.PrivilegeManager.enablePrivilege("UniversalBrowserRead"),l=M.getImageData(0,0,j,q)}catch(T){throw alert("Cannot access local image"),Error("unable to access local image data: "+T);}}}catch(U){throw alert("Cannot access image"),Error("unable to access image data: "+U);}var c=l.data,u,z,a,d,f,J,g,h,i,v,w,x,m,n,o,r,s,t,C;u=k+k+1;var K=j-1,N=q-1,p=k+1,D=p*(p+1)/2,E=new O,b=E;for(a=1;a<u;a++)if(b=b.next=new O,a==
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c[d+1],i+=o+=a.b=c[d+2],a=a.next,v+=r=b.r,w+=s=b.g,x+=t=b.b,m-=r,n-=s,o-=t,b=b.next,f+=j}M.putImageData(l,0,0)}if(!1!=e.overlay)ctx.beginPath(),ctx.rect(0,0,tempImg.width,tempImg.width),ctx.fillStyle=e.overlay,ctx.fill();var j=y.toDataURL();if(e.cache)try{e.debug&&console.log("Cache Set"),localStorage.setItem(e.cacheKeyPrefix+H+"-"+B+"-data-image",j)}catch(V){console.log(V)}}q=I.css("backgroundAttachment");k="fixed"==q?"":"-"+(A.offset().left-I.offset().left-e.offset.x)+"px -"+(A.offset().top-I.offset().top-
e.offset.y)+"px";A.css({"background-image":'url("'+j+'")',"background-repeat":I.css("backgroundRepeat"),"background-position":k,"background-attachment":q});!1!=e.optClass&&A.addClass(e.optClass);e.draggable&&(A.css({"background-attachment":"fixed","background-position":"0 0"}),A.draggable())};Storage.prototype.cacheChecksum=function(j){var q="",k;for(k in j)var l=j[k],q="[object Object]"==l.toString()?q+(l.x.toString()+l.y.toString()+",").replace(/[^a-zA-Z0-9]/g,""):q+(l+",").replace(/[^a-zA-Z0-9]/g,
"");this.getItem(e.cacheKeyPrefix+H+"-"+B+"-options-cache")!=q&&(this.removeItem(e.cacheKeyPrefix+H+"-"+B+"-options-cache"),this.setItem(e.cacheKeyPrefix+H+"-"+B+"-options-cache",q),e.debug&&console.log("Settings Changed, Cache Emptied"))};var L=null;e.cache&&(localStorage.cacheChecksum(e),L=localStorage.getItem(e.cacheKeyPrefix+H+"-"+B+"-data-image"));null!=L?(e.debug&&console.log("Cache Used"),P=!0,tempImg.src=L):(e.debug&&console.log("Source Used"),tempImg.src=B)})}}})(jQuery);