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https://github.com/DarrylNixon/binhop
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58 lines
45 KiB
JavaScript
58 lines
45 KiB
JavaScript
/**
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* chroma.js - JavaScript library for color conversions
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*
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* Copyright (c) 2011-2019, Gregor Aisch
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. The name Gregor Aisch may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL GREGOR AISCH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* -------------------------------------------------------
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*
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* chroma.js includes colors from colorbrewer2.org, which are released under
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* the following license:
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*
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* Copyright (c) 2002 Cynthia Brewer, Mark Harrower,
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* and The Pennsylvania State University.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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* either express or implied. See the License for the specific
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* language governing permissions and limitations under the License.
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*
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* ------------------------------------------------------
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*
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* Named colors are taken from X11 Color Names.
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* http://www.w3.org/TR/css3-color/#svg-color
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*
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* @preserve
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*/
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r[0][e]})):r[0]},last:function(r){if(r.length<2)return null;var e=r.length-1;return"string"==c(r[e])?r[e].toLowerCase():null},PI:i,TWOPI:2*i,PITHIRD:i/3,DEG2RAD:i/180,RAD2DEG:180/i},h={format:{},autodetect:[]},s=l.last,d=l.clip_rgb,b=l.type,p=h,g=function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];var n=this;if("object"===b(r[0])&&r[0].constructor&&r[0].constructor===this.constructor)return r[0];var t=s(r),a=!1;if(!t){a=!0,p.sorted||(p.autodetect=p.autodetect.sort((function(r,e){return e.p-r.p})),p.sorted=!0);for(var f=0,o=p.autodetect;f<o.length;f+=1){var u=o[f];if(t=u.test.apply(u,r))break}}if(!p.format[t])throw new Error("unknown format: "+r);var c=p.format[t].apply(null,a?r:r.slice(0,-1));n._rgb=d(c),3===n._rgb.length&&n._rgb.push(1)};g.prototype.toString=function(){return"function"==b(this.hex)?this.hex():"["+this._rgb.join(",")+"]"};var v=g,m=function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];return new(Function.prototype.bind.apply(m.Color,[null].concat(r)))};m.Color=v,m.version="2.4.2";var y=m,k=l.unpack,w=Math.max,M=function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];var n=k(r,"rgb"),t=n[0],a=n[1],f=n[2],o=1-w(t/=255,w(a/=255,f/=255)),u=o<1?1/(1-o):0,c=(1-t-o)*u,i=(1-a-o)*u,l=(1-f-o)*u;return[c,i,l,o]},N=l.unpack,_=function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];var n=(r=N(r,"cmyk"))[0],t=r[1],a=r[2],f=r[3],o=r.length>4?r[4]:1;return 1===f?[0,0,0,o]:[n>=1?0:255*(1-n)*(1-f),t>=1?0:255*(1-t)*(1-f),a>=1?0:255*(1-a)*(1-f),o]},x=y,A=v,E=h,F=l.unpack,P=l.type,O=M;A.prototype.cmyk=function(){return O(this._rgb)},x.cmyk=function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];return new(Function.prototype.bind.apply(A,[null].concat(r,["cmyk"])))},E.format.cmyk=_,E.autodetect.push({p:2,test:function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];if(r=F(r,"cmyk"),"array"===P(r)&&4===r.length)return"cmyk"}});var 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n=B(r,"rgba"),t=C(r)||"rgb";return"hsl"==t.substr(0,3)?D(Y(n),t):(n[0]=S(n[0]),n[1]=S(n[1]),n[2]=S(n[2]),("rgba"===t||n.length>3&&n[3]<1)&&(n[3]=n.length>3?n[3]:1,t="rgba"),t+"("+n.slice(0,"rgb"===t?3:4).join(",")+")")},$=l.unpack,z=Math.round,X=function(){for(var r,e=[],n=arguments.length;n--;)e[n]=arguments[n];var t,a,f,o=(e=$(e,"hsl"))[0],u=e[1],c=e[2];if(0===u)t=a=f=255*c;else{var i=[0,0,0],l=[0,0,0],h=c<.5?c*(1+u):c+u-c*u,s=2*c-h,d=o/360;i[0]=d+1/3,i[1]=d,i[2]=d-1/3;for(var b=0;b<3;b++)i[b]<0&&(i[b]+=1),i[b]>1&&(i[b]-=1),6*i[b]<1?l[b]=s+6*(h-s)*i[b]:2*i[b]<1?l[b]=h:3*i[b]<2?l[b]=s+(h-s)*(2/3-i[b])*6:l[b]=s;t=(r=[z(255*l[0]),z(255*l[1]),z(255*l[2])])[0],a=r[1],f=r[2]}return e.length>3?[t,a,f,e[3]]:[t,a,f,1]},U=X,V=h,W=/^rgb\(\s*(-?\d+),\s*(-?\d+)\s*,\s*(-?\d+)\s*\)$/,K=/^rgba\(\s*(-?\d+),\s*(-?\d+)\s*,\s*(-?\d+)\s*,\s*([01]|[01]?\.\d+)\)$/,Z=/^rgb\(\s*(-?\d+(?:\.\d+)?)%,\s*(-?\d+(?:\.\d+)?)%\s*,\s*(-?\d+(?:\.\d+)?)%\s*\)$/,H=/^rgba\(\s*(-?\d+(?:\.\d+)?)%,\s*(-?\d+(?:\.\d+)?)%\s*,\s*(-?\d+(?:\.\d+)?)%\s*,\s*([01]|[01]?\.\d+)\)$/,J=/^hsl\(\s*(-?\d+(?:\.\d+)?),\s*(-?\d+(?:\.\d+)?)%\s*,\s*(-?\d+(?:\.\d+)?)%\s*\)$/,Q=/^hsla\(\s*(-?\d+(?:\.\d+)?),\s*(-?\d+(?:\.\d+)?)%\s*,\s*(-?\d+(?:\.\d+)?)%\s*,\s*([01]|[01]?\.\d+)\)$/,rr=Math.round,er=function(r){var e;if(r=r.toLowerCase().trim(),V.format.named)try{return V.format.named(r)}catch(r){}if(e=r.match(W)){for(var n=e.slice(1,4),t=0;t<3;t++)n[t]=+n[t];return n[3]=1,n}if(e=r.match(K)){for(var a=e.slice(1,5),f=0;f<4;f++)a[f]=+a[f];return a}if(e=r.match(Z)){for(var o=e.slice(1,4),u=0;u<3;u++)o[u]=rr(2.55*o[u]);return o[3]=1,o}if(e=r.match(H)){for(var c=e.slice(1,5),i=0;i<3;i++)c[i]=rr(2.55*c[i]);return c[3]=+c[3],c}if(e=r.match(J)){var l=e.slice(1,4);l[1]*=.01,l[2]*=.01;var h=U(l);return h[3]=1,h}if(e=r.match(Q)){var s=e.slice(1,4);s[1]*=.01,s[2]*=.01;var d=U(s);return d[3]=+e[4],d}};er.test=function(r){return W.test(r)||K.test(r)||Z.test(r)||H.test(r)||J.test(r)||Q.test(r)};var nr=y,tr=v,ar=h,fr=l.type,or=T,ur=er;tr.prototype.css=function(r){return or(this._rgb,r)},nr.css=function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];return new(Function.prototype.bind.apply(tr,[null].concat(r,["css"])))},ar.format.css=ur,ar.autodetect.push({p:5,test:function(r){for(var e=[],n=arguments.length-1;n-- >0;)e[n]=arguments[n+1];if(!e.length&&"string"===fr(r)&&ur.test(r))return"css"}});var cr=v,ir=y,lr=l.unpack;h.format.gl=function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];var n=lr(r,"rgba");return n[0]*=255,n[1]*=255,n[2]*=255,n},ir.gl=function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];return new(Function.prototype.bind.apply(cr,[null].concat(r,["gl"])))},cr.prototype.gl=function(){var r=this._rgb;return[r[0]/255,r[1]/255,r[2]/255,r[3]]};var hr=l.unpack,sr=function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];var n,t=hr(r,"rgb"),a=t[0],f=t[1],o=t[2],u=Math.min(a,f,o),c=Math.max(a,f,o),i=c-u,l=100*i/255,h=u/(255-i)*100;return 0===i?n=Number.NaN:(a===c&&(n=(f-o)/i),f===c&&(n=2+(o-a)/i),o===c&&(n=4+(a-f)/i),(n*=60)<0&&(n+=360)),[n,l,h]},dr=l.unpack,br=Math.floor,pr=function(){for(var r,e,n,t,a,f,o=[],u=arguments.length;u--;)o[u]=arguments[u];var c,i,l,h=(o=dr(o,"hcg"))[0],s=o[1],d=o[2];d*=255;var b=255*s;if(0===s)c=i=l=d;else{360===h&&(h=0),h>360&&(h-=360),h<0&&(h+=360);var p=br(h/=60),g=h-p,v=d*(1-s),m=v+b*(1-g),y=v+b*g,k=v+b;switch(p){case 0:c=(r=[k,y,v])[0],i=r[1],l=r[2];break;case 1:c=(e=[m,k,v])[0],i=e[1],l=e[2];break;case 2:c=(n=[v,k,y])[0],i=n[1],l=n[2];break;case 3:c=(t=[v,m,k])[0],i=t[1],l=t[2];break;case 4:c=(a=[y,v,k])[0],i=a[1],l=a[2];break;case 5:c=(f=[k,v,m])[0],i=f[1],l=f[2]}}return[c,i,l,o.length>3?o[3]:1]},gr=l.unpack,vr=l.type,mr=y,yr=v,kr=h,wr=sr;yr.prototype.hcg=function(){return wr(this._rgb)},mr.hcg=function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];return new(Function.prototype.bind.apply(yr,[null].concat(r,["hcg"])))},kr.format.hcg=pr,kr.autodetect.push({p:1,test:function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];if(r=gr(r,"hcg"),"array"===vr(r)&&3===r.length)return"hcg"}});var Mr=l.unpack,Nr=l.last,_r=Math.round,xr=function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];var n=Mr(r,"rgba"),t=n[0],a=n[1],f=n[2],o=n[3],u=Nr(r)||"auto";void 0===o&&(o=1),"auto"===u&&(u=o<1?"rgba":"rgb");var c=(t=_r(t))<<16|(a=_r(a))<<8|(f=_r(f)),i="000000"+c.toString(16);i=i.substr(i.length-6);var l="0"+_r(255*o).toString(16);switch(l=l.substr(l.length-2),u.toLowerCase()){case"rgba":return"#"+i+l;case"argb":return"#"+l+i;default:return"#"+i}},Ar=/^#?([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})$/,Er=/^#?([A-Fa-f0-9]{8}|[A-Fa-f0-9]{4})$/,Fr=function(r){if(r.match(Ar)){4!==r.length&&7!==r.length||(r=r.substr(1)),3===r.length&&(r=(r=r.split(""))[0]+r[0]+r[1]+r[1]+r[2]+r[2]);var e=parseInt(r,16);return[e>>16,e>>8&255,255&e,1]}if(r.match(Er)){5!==r.length&&9!==r.length||(r=r.substr(1)),4===r.length&&(r=(r=r.split(""))[0]+r[0]+r[1]+r[1]+r[2]+r[2]+r[3]+r[3]);var n=parseInt(r,16);return[n>>24&255,n>>16&255,n>>8&255,Math.round((255&n)/255*100)/100]}throw new Error("unknown hex color: "+r)},Pr=y,Or=v,jr=l.type,Gr=h,Rr=xr;Or.prototype.hex=function(r){return Rr(this._rgb,r)},Pr.hex=function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];return new(Function.prototype.bind.apply(Or,[null].concat(r,["hex"])))},Gr.format.hex=Fr,Gr.autodetect.push({p:4,test:function(r){for(var 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isNaN(f)&&(f=0),isNaN(o)&&(o=0),f>360&&(f-=360),f<0&&(f+=360),(f/=360)<1/3?t=1-((a=(1-o)/3)+(n=(1+o*zr(Tr*f)/zr($r-Tr*f))/3)):f<2/3?a=1-((n=(1-o)/3)+(t=(1+o*zr(Tr*(f-=1/3))/zr($r-Tr*f))/3)):n=1-((t=(1-o)/3)+(a=(1+o*zr(Tr*(f-=2/3))/zr($r-Tr*f))/3)),[255*(n=Sr(u*n*3)),255*(t=Sr(u*t*3)),255*(a=Sr(u*a*3)),r.length>3?r[3]:1]},Ur=l.unpack,Vr=l.type,Wr=y,Kr=v,Zr=h,Hr=Dr;Kr.prototype.hsi=function(){return Hr(this._rgb)},Wr.hsi=function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];return new(Function.prototype.bind.apply(Kr,[null].concat(r,["hsi"])))},Zr.format.hsi=Xr,Zr.autodetect.push({p:2,test:function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];if(r=Ur(r,"hsi"),"array"===Vr(r)&&3===r.length)return"hsi"}});var Jr=l.unpack,Qr=l.type,re=y,ee=v,ne=h,te=I;ee.prototype.hsl=function(){return te(this._rgb)},re.hsl=function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];return 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3:c=(t=[g,v,d])[0],i=t[1],l=t[2];break;case 4:c=(a=[m,g,d])[0],i=a[1],l=a[2];break;case 5:c=(f=[d,g,v])[0],i=f[1],l=f[2]}}return[c,i,l,o.length>3?o[3]:1]},he=l.unpack,se=l.type,de=y,be=v,pe=h,ge=ue;be.prototype.hsv=function(){return ge(this._rgb)},de.hsv=function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];return new(Function.prototype.bind.apply(be,[null].concat(r,["hsv"])))},pe.format.hsv=le,pe.autodetect.push({p:2,test:function(){for(var r=[],e=arguments.length;e--;)r[e]=arguments[e];if(r=he(r,"hsv"),"array"===se(r)&&3===r.length)return"hsv"}});var ve={Kn:18,Xn:.95047,Yn:1,Zn:1.08883,t0:.137931034,t1:.206896552,t2:.12841855,t3:.008856452},me=ve,ye=l.unpack,ke=Math.pow,we=function(r){return(r/=255)<=.04045?r/12.92:ke((r+.055)/1.055,2.4)},Me=function(r){return r>me.t3?ke(r,1/3):r/me.t2+me.t0},Ne=function(r,e,n){return 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