| 2150 |
mathias |
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if(!dojo._hasResource["dojox.color._base"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
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dojo._hasResource["dojox.color._base"] = true;
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dojo.provide("dojox.color._base");
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dojo.require("dojo.colors");
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// alias all the dojo.Color mechanisms
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dojox.color.Color=dojo.Color;
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dojox.color.blend=dojo.blendColors;
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dojox.color.fromRgb=dojo.colorFromRgb;
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dojox.color.fromHex=dojo.colorFromHex;
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dojox.color.fromArray=dojo.colorFromArray;
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dojox.color.fromString=dojo.colorFromString;
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// alias the dojo.colors mechanisms
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dojox.color.greyscale=dojo.colors.makeGrey;
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// static methods
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dojo.mixin(dojox.color, {
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fromCmy: function(/* Object|Array|int */cyan, /*int*/magenta, /*int*/yellow){
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// summary
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// Create a dojox.color.Color from a CMY defined color.
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// All colors should be expressed as 0-100 (percentage)
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if(dojo.isArray(cyan)){
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magenta=cyan[1], yellow=cyan[2], cyan=cyan[0];
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} else if(dojo.isObject(cyan)){
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magenta=cyan.m, yellow=cyan.y, cyan=cyan.c;
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}
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cyan/=100, magenta/=100, yellow/=100;
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var r=1-cyan, g=1-magenta, b=1-yellow;
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return new dojox.color.Color({ r:Math.round(r*255), g:Math.round(g*255), b:Math.round(b*255) }); // dojox.color.Color
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},
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fromCmyk: function(/* Object|Array|int */cyan, /*int*/magenta, /*int*/yellow, /*int*/black){
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// summary
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// Create a dojox.color.Color from a CMYK defined color.
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// All colors should be expressed as 0-100 (percentage)
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if(dojo.isArray(cyan)){
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magenta=cyan[1], yellow=cyan[2], black=cyan[3], cyan=cyan[0];
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} else if(dojo.isObject(cyan)){
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magenta=cyan.m, yellow=cyan.y, black=cyan.b, cyan=cyan.c;
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}
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cyan/=100, magenta/=100, yellow/=100, black/=100;
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var r,g,b;
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r = 1-Math.min(1, cyan*(1-black)+black);
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g = 1-Math.min(1, magenta*(1-black)+black);
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b = 1-Math.min(1, yellow*(1-black)+black);
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return new dojox.color.Color({ r:Math.round(r*255), g:Math.round(g*255), b:Math.round(b*255) }); // dojox.color.Color
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},
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fromHsl: function(/* Object|Array|int */hue, /* int */saturation, /* int */luminosity){
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// summary
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// Create a dojox.color.Color from an HSL defined color.
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// hue from 0-359 (degrees), saturation and luminosity 0-100.
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if(dojo.isArray(hue)){
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saturation=hue[1], luminosity=hue[2], hue=hue[0];
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} else if(dojo.isObject(hue)){
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saturation=hue.s, luminosity=hue.l, hue=hue.h;
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}
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saturation/=100;
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luminosity/=100;
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while(hue<0){ hue+=360; }
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while(hue>=360){ hue-=360; }
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var r, g, b;
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if(hue<120){
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r=(120-hue)/60, g=hue/60, b=0;
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} else if (hue<240){
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r=0, g=(240-hue)/60, b=(hue-120)/60;
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} else {
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r=(hue-240)/60, g=0, b=(360-hue)/60;
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}
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r=2*saturation*Math.min(r, 1)+(1-saturation);
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g=2*saturation*Math.min(g, 1)+(1-saturation);
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b=2*saturation*Math.min(b, 1)+(1-saturation);
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if(luminosity<0.5){
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r*=luminosity, g*=luminosity, b*=luminosity;
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}else{
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r=(1-luminosity)*r+2*luminosity-1;
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g=(1-luminosity)*g+2*luminosity-1;
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b=(1-luminosity)*b+2*luminosity-1;
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}
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return new dojox.color.Color({ r:Math.round(r*255), g:Math.round(g*255), b:Math.round(b*255) }); // dojox.color.Color
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},
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fromHsv: function(/* Object|Array|int */hue, /* int */saturation, /* int */value){
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// summary
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// Create a dojox.color.Color from an HSV defined color.
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// hue from 0-359 (degrees), saturation and value 0-100.
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if(dojo.isArray(hue)){
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saturation=hue[1], value=hue[2], hue=hue[0];
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} else if (dojo.isObject(hue)){
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saturation=hue.s, value=hue.v, hue=hue.h;
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}
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if(hue==360){ hue=0; }
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saturation/=100;
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value/=100;
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var r, g, b;
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if(saturation==0){
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r=value, b=value, g=value;
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}else{
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var hTemp=hue/60, i=Math.floor(hTemp), f=hTemp-i;
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var p=value*(1-saturation);
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var q=value*(1-(saturation*f));
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var t=value*(1-(saturation*(1-f)));
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switch(i){
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case 0:{ r=value, g=t, b=p; break; }
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case 1:{ r=q, g=value, b=p; break; }
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case 2:{ r=p, g=value, b=t; break; }
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case 3:{ r=p, g=q, b=value; break; }
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case 4:{ r=t, g=p, b=value; break; }
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case 5:{ r=value, g=p, b=q; break; }
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}
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}
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return new dojox.color.Color({ r:Math.round(r*255), g:Math.round(g*255), b:Math.round(b*255) }); // dojox.color.Color
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}
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});
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// Conversions directly on dojox.color.Color
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dojo.extend(dojox.color.Color, {
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toCmy: function(){
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// summary
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// Convert this Color to a CMY definition.
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var cyan=1-(this.r/255), magenta=1-(this.g/255), yellow=1-(this.b/255);
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return { c:Math.round(cyan*100), m:Math.round(magenta*100), y:Math.round(yellow*100) }; // Object
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},
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toCmyk: function(){
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// summary
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// Convert this Color to a CMYK definition.
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var cyan, magenta, yellow, black;
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var r=this.r/255, g=this.g/255, b=this.b/255;
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black = Math.min(1-r, 1-g, 1-b);
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cyan = (1-r-black)/(1-black);
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magenta = (1-g-black)/(1-black);
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yellow = (1-b-black)/(1-black);
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return { c:Math.round(cyan*100), m:Math.round(magenta*100), y:Math.round(yellow*100), b:Math.round(black*100) }; // Object
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},
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toHsl: function(){
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// summary
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// Convert this Color to an HSL definition.
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var r=this.r/255, g=this.g/255, b=this.b/255;
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var min = Math.min(r, b, g), max = Math.max(r, g, b);
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var delta = max-min;
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var h=0, s=0, l=(min+max)/2;
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if(l>0 && l<1){
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s = delta/((l<0.5)?(2*l):(2-2*l));
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}
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if(delta>0){
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if(max==r && max!=g){
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h+=(g-b)/delta;
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}
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if(max==g && max!=b){
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h+=(2+(b-r)/delta);
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}
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if(max==b && max!=r){
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h+=(4+(r-g)/delta);
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}
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h*=60;
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}
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return { h:h, s:Math.round(s*100), l:Math.round(l*100) }; // Object
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},
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toHsv: function(){
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// summary
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// Convert this Color to an HSV definition.
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var r=this.r/255, g=this.g/255, b=this.b/255;
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var min = Math.min(r, b, g), max = Math.max(r, g, b);
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var delta = max-min;
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var h = null, s = (max==0)?0:(delta/max);
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if(s==0){
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h = 0;
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}else{
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if(r==max){
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h = 60*(g-b)/delta;
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}else if(g==max){
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h = 120 + 60*(b-r)/delta;
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}else{
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h = 240 + 60*(r-g)/delta;
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}
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if(h<0){ h+=360; }
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}
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return { h:h, s:Math.round(s*100), v:Math.round(max*100) }; // Object
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}
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});
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}
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