if(!dojo._hasResource["dojox.color._base"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. dojo._hasResource["dojox.color._base"] = true; dojo.provide("dojox.color._base"); dojo.require("dojo.colors"); // alias all the dojo.Color mechanisms dojox.color.Color=dojo.Color; dojox.color.blend=dojo.blendColors; dojox.color.fromRgb=dojo.colorFromRgb; dojox.color.fromHex=dojo.colorFromHex; dojox.color.fromArray=dojo.colorFromArray; dojox.color.fromString=dojo.colorFromString; // alias the dojo.colors mechanisms dojox.color.greyscale=dojo.colors.makeGrey; // static methods dojo.mixin(dojox.color, { fromCmy: function(/* Object|Array|int */cyan, /*int*/magenta, /*int*/yellow){ // summary // Create a dojox.color.Color from a CMY defined color. // All colors should be expressed as 0-100 (percentage) if(dojo.isArray(cyan)){ magenta=cyan[1], yellow=cyan[2], cyan=cyan[0]; } else if(dojo.isObject(cyan)){ magenta=cyan.m, yellow=cyan.y, cyan=cyan.c; } cyan/=100, magenta/=100, yellow/=100; var r=1-cyan, g=1-magenta, b=1-yellow; return new dojox.color.Color({ r:Math.round(r*255), g:Math.round(g*255), b:Math.round(b*255) }); // dojox.color.Color }, fromCmyk: function(/* Object|Array|int */cyan, /*int*/magenta, /*int*/yellow, /*int*/black){ // summary // Create a dojox.color.Color from a CMYK defined color. // All colors should be expressed as 0-100 (percentage) if(dojo.isArray(cyan)){ magenta=cyan[1], yellow=cyan[2], black=cyan[3], cyan=cyan[0]; } else if(dojo.isObject(cyan)){ magenta=cyan.m, yellow=cyan.y, black=cyan.b, cyan=cyan.c; } cyan/=100, magenta/=100, yellow/=100, black/=100; var r,g,b; r = 1-Math.min(1, cyan*(1-black)+black); g = 1-Math.min(1, magenta*(1-black)+black); b = 1-Math.min(1, yellow*(1-black)+black); return new dojox.color.Color({ r:Math.round(r*255), g:Math.round(g*255), b:Math.round(b*255) }); // dojox.color.Color }, fromHsl: function(/* Object|Array|int */hue, /* int */saturation, /* int */luminosity){ // summary // Create a dojox.color.Color from an HSL defined color. // hue from 0-359 (degrees), saturation and luminosity 0-100. if(dojo.isArray(hue)){ saturation=hue[1], luminosity=hue[2], hue=hue[0]; } else if(dojo.isObject(hue)){ saturation=hue.s, luminosity=hue.l, hue=hue.h; } saturation/=100; luminosity/=100; while(hue<0){ hue+=360; } while(hue>=360){ hue-=360; } var r, g, b; if(hue<120){ r=(120-hue)/60, g=hue/60, b=0; } else if (hue<240){ r=0, g=(240-hue)/60, b=(hue-120)/60; } else { r=(hue-240)/60, g=0, b=(360-hue)/60; } r=2*saturation*Math.min(r, 1)+(1-saturation); g=2*saturation*Math.min(g, 1)+(1-saturation); b=2*saturation*Math.min(b, 1)+(1-saturation); if(luminosity<0.5){ r*=luminosity, g*=luminosity, b*=luminosity; }else{ r=(1-luminosity)*r+2*luminosity-1; g=(1-luminosity)*g+2*luminosity-1; b=(1-luminosity)*b+2*luminosity-1; } return new dojox.color.Color({ r:Math.round(r*255), g:Math.round(g*255), b:Math.round(b*255) }); // dojox.color.Color }, fromHsv: function(/* Object|Array|int */hue, /* int */saturation, /* int */value){ // summary // Create a dojox.color.Color from an HSV defined color. // hue from 0-359 (degrees), saturation and value 0-100. if(dojo.isArray(hue)){ saturation=hue[1], value=hue[2], hue=hue[0]; } else if (dojo.isObject(hue)){ saturation=hue.s, value=hue.v, hue=hue.h; } if(hue==360){ hue=0; } saturation/=100; value/=100; var r, g, b; if(saturation==0){ r=value, b=value, g=value; }else{ var hTemp=hue/60, i=Math.floor(hTemp), f=hTemp-i; var p=value*(1-saturation); var q=value*(1-(saturation*f)); var t=value*(1-(saturation*(1-f))); switch(i){ case 0:{ r=value, g=t, b=p; break; } case 1:{ r=q, g=value, b=p; break; } case 2:{ r=p, g=value, b=t; break; } case 3:{ r=p, g=q, b=value; break; } case 4:{ r=t, g=p, b=value; break; } case 5:{ r=value, g=p, b=q; break; } } } return new dojox.color.Color({ r:Math.round(r*255), g:Math.round(g*255), b:Math.round(b*255) }); // dojox.color.Color } }); // Conversions directly on dojox.color.Color dojo.extend(dojox.color.Color, { toCmy: function(){ // summary // Convert this Color to a CMY definition. var cyan=1-(this.r/255), magenta=1-(this.g/255), yellow=1-(this.b/255); return { c:Math.round(cyan*100), m:Math.round(magenta*100), y:Math.round(yellow*100) }; // Object }, toCmyk: function(){ // summary // Convert this Color to a CMYK definition. var cyan, magenta, yellow, black; var r=this.r/255, g=this.g/255, b=this.b/255; black = Math.min(1-r, 1-g, 1-b); cyan = (1-r-black)/(1-black); magenta = (1-g-black)/(1-black); yellow = (1-b-black)/(1-black); return { c:Math.round(cyan*100), m:Math.round(magenta*100), y:Math.round(yellow*100), b:Math.round(black*100) }; // Object }, toHsl: function(){ // summary // Convert this Color to an HSL definition. var r=this.r/255, g=this.g/255, b=this.b/255; var min = Math.min(r, b, g), max = Math.max(r, g, b); var delta = max-min; var h=0, s=0, l=(min+max)/2; if(l>0 && l<1){ s = delta/((l<0.5)?(2*l):(2-2*l)); } if(delta>0){ if(max==r && max!=g){ h+=(g-b)/delta; } if(max==g && max!=b){ h+=(2+(b-r)/delta); } if(max==b && max!=r){ h+=(4+(r-g)/delta); } h*=60; } return { h:h, s:Math.round(s*100), l:Math.round(l*100) }; // Object }, toHsv: function(){ // summary // Convert this Color to an HSV definition. var r=this.r/255, g=this.g/255, b=this.b/255; var min = Math.min(r, b, g), max = Math.max(r, g, b); var delta = max-min; var h = null, s = (max==0)?0:(delta/max); if(s==0){ h = 0; }else{ if(r==max){ h = 60*(g-b)/delta; }else if(g==max){ h = 120 + 60*(b-r)/delta; }else{ h = 240 + 60*(r-g)/delta; } if(h<0){ h+=360; } } return { h:h, s:Math.round(s*100), v:Math.round(max*100) }; // Object } }); }