dat.gui/build/dat.color.min.js

/**
 * dat-gui JavaScript Controller Library
 * http://code.google.com/p/dat-gui
 *
 * Copyright 2011 Data Arts Team, Google Creative Lab
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 */
var dat=dat||{};dat.color=dat.color||{};dat.utils=dat.utils||{};
dat.utils.common=function(){var f=Array.prototype.forEach,b=Array.prototype.slice;return{BREAK:{},extend:function(c){this.each(b.call(arguments,1),function(b){for(var d in b)this.isUndefined(b[d])||(c[d]=b[d])},this);return c},defaults:function(c){this.each(b.call(arguments,1),function(b){for(var d in b)this.isUndefined(c[d])&&(c[d]=b[d])},this);return c},compose:function(){var c=b.call(arguments);return function(){for(var e=b.call(arguments),d=c.length-1;d>=0;d--)e=[c[d].apply(this,e)];return e[0]}},
each:function(b,e,d){if(f&&b.forEach===f)b.forEach(e,d);else if(b.length===b.length+0)for(var a=0,h=b.length;a<h;a++){if(a in b&&e.call(d,b[a],a)===this.BREAK)break}else for(a in b)if(e.call(d,b[a],a)===this.BREAK)break},defer:function(b){setTimeout(b,0)},toArray:function(c){return c.toArray?c.toArray():b.call(c)},isUndefined:function(b){return b===void 0},isNull:function(b){return b===null},isNaN:function(b){return b!==b},isArray:Array.isArray||function(b){return b.constructor===Array},isObject:function(b){return b===
Object(b)},isNumber:function(b){return b===b+0},isString:function(b){return b===b+""},isBoolean:function(b){return b===false||b===true},isFunction:function(b){return Object.prototype.toString.call(b)==="[object Function]"}}}();dat.color.toString=function(f){return function(b){if(b.a==1||f.isUndefined(b.a)){for(b=b.hex.toString(16);b.length<6;)b="0"+b;return"#"+b}else return"rgba("+Math.round(b.r)+","+Math.round(b.g)+","+Math.round(b.b)+","+b.a+")"}}(dat.utils.common);
dat.Color=dat.color.Color=function(f,b,c,e){function d(a,b,c){Object.defineProperty(a,b,{get:function(){if(this.__state.space==="RGB")return this.__state[b];h(this,b,c);return this.__state[b]},set:function(a){if(this.__state.space!=="RGB")h(this,b,c),this.__state.space="RGB";this.__state[b]=a}})}function a(a,b){Object.defineProperty(a,b,{get:function(){if(this.__state.space==="HSV")return this.__state[b];i(this);return this.__state[b]},set:function(a){if(this.__state.space!=="HSV")i(this),this.__state.space=
"HSV";this.__state[b]=a}})}function h(a,c,d){if(a.__state.space==="HEX")a.__state[c]=b.component_from_hex(a.__state.hex,d);else if(a.__state.space==="HSV")e.extend(a.__state,b.hsv_to_rgb(a.__state.h,a.__state.s,a.__state.v));else throw"Corrupted color state";}function i(a){var c=b.rgb_to_hsv(a.r,a.g,a.b);e.extend(a.__state,{s:c.s,v:c.v});if(e.isNaN(c.h)){if(e.isUndefined(a.__state.h))a.__state.h=0}else a.__state.h=c.h}var g=function(){this.__state=f.apply(this,arguments);if(this.__state===false)throw"Failed to interpret color arguments";
this.__state.a=this.__state.a||1};g.COMPONENTS="r,g,b,h,s,v,hex,a".split(",");e.extend(g.prototype,{toString:function(){return c(this)},toOriginal:function(){return this.__state.conversion.write(this)}});d(g.prototype,"r",2);d(g.prototype,"g",1);d(g.prototype,"b",0);a(g.prototype,"h");a(g.prototype,"s");a(g.prototype,"v");Object.defineProperty(g.prototype,"a",{get:function(){return this.__state.a},set:function(a){this.__state.a=a}});Object.defineProperty(g.prototype,"hex",{get:function(){if(!this.__state.space!==
"HEX")this.__state.hex=b.rgb_to_hex(this.r,this.g,this.b);return this.__state.hex},set:function(a){this.__state.space="HEX";this.__state.hex=a}});return g}(dat.color.interpret=function(f,b){var c,e,d=[{litmus:b.isString,conversions:{THREE_CHAR_HEX:{read:function(a){a=a.match(/^#([A-F0-9])([A-F0-9])([A-F0-9])$/i);return a===null?false:{space:"HEX",hex:parseInt("0x"+a[1].toString()+a[1].toString()+a[2].toString()+a[2].toString()+a[3].toString()+a[3].toString())}},write:f},SIX_CHAR_HEX:{read:function(a){a=
a.match(/^#([A-F0-9]{6})$/i);return a===null?false:{space:"HEX",hex:parseInt("0x"+a[1].toString())}},write:f},CSS_RGB:{read:function(a){a=a.match(/^rgb\(\s*(.+)\s*,\s*(.+)\s*,\s*(.+)\s*\)/);return a===null?false:{space:"RGB",r:parseFloat(a[1]),g:parseFloat(a[2]),b:parseFloat(a[3])}},write:f},CSS_RGBA:{read:function(a){a=a.match(/^rgba\(\s*(.+)\s*,\s*(.+)\s*,\s*(.+)\s*\,\s*(.+)\s*\)/);return a===null?false:{space:"RGB",r:parseFloat(a[1]),g:parseFloat(a[2]),b:parseFloat(a[3]),a:parseFloat(a[4])}},write:f}}},
{litmus:b.isNumber,conversions:{HEX:{read:function(a){return{space:"HEX",hex:a,conversionName:"HEX"}},write:function(a){return a.hex}}}},{litmus:b.isArray,conversions:{RGB_ARRAY:{read:function(a){return a.length!=3?false:{space:"RGB",r:a[0],g:a[1],b:a[2]}},write:function(a){return[a.r,a.g,a.b]}},RGBA_ARRAY:{read:function(a){return a.length!=4?false:{space:"RGB",r:a[0],g:a[1],b:a[2],a:a[3]}},write:function(a){return[a.r,a.g,a.b,a.a]}}}},{litmus:b.isObject,conversions:{RGBA_OBJ:{read:function(a){return b.isNumber(a.r)&&
b.isNumber(a.g)&&b.isNumber(a.b)&&b.isNumber(a.a)?{space:"RGB",r:a.r,g:a.g,b:a.b,a:a.a}:false},write:function(a){return{r:a.r,g:a.g,b:a.b,a:a.a}}},RGB_OBJ:{read:function(a){return b.isNumber(a.r)&&b.isNumber(a.g)&&b.isNumber(a.b)?{space:"RGB",r:a.r,g:a.g,b:a.b}:false},write:function(a){return{r:a.r,g:a.g,b:a.b}}},HSVA_OBJ:{read:function(a){return b.isNumber(a.h)&&b.isNumber(a.s)&&b.isNumber(a.v)&&b.isNumber(a.a)?{space:"HSV",h:a.h,s:a.s,v:a.v,a:a.a}:false},write:function(a){return{h:a.h,s:a.s,v:a.v,
a:a.a}}},HSV_OBJ:{read:function(a){return b.isNumber(a.h)&&b.isNumber(a.s)&&b.isNumber(a.v)?{space:"HSV",h:a.h,s:a.s,v:a.v}:false},write:function(a){return{h:a.h,s:a.s,v:a.v}}}}}];return function(){e=false;var a=arguments.length>1?b.toArray(arguments):arguments[0];b.each(d,function(d){if(d.litmus(a))return b.each(d.conversions,function(d,f){c=d.read(a);if(e===false&&c!==false)return e=c,c.conversionName=f,c.conversion=d,b.BREAK}),b.BREAK});return e}}(dat.color.toString,dat.utils.common),dat.color.math=
function(){var f;return{hsv_to_rgb:function(b,c,e){var d=b/60-Math.floor(b/60),a=e*(1-c),f=e*(1-d*c),c=e*(1-(1-d)*c),b=[[e,c,a],[f,e,a],[a,e,c],[a,f,e],[c,a,e],[e,a,f]][Math.floor(b/60)%6];return{r:b[0]*255,g:b[1]*255,b:b[2]*255}},rgb_to_hsv:function(b,c,e){var d=Math.min(b,c,e),a=Math.max(b,c,e),d=a-d;if(a==0)return{h:NaN,s:0,v:0};b=b==a?(c-e)/d:c==a?2+(e-b)/d:4+(b-c)/d;b/=6;b<0&&(b+=1);return{h:b*360,s:d/a,v:a/255}},rgb_to_hex:function(b,c,e){b=this.hex_with_component(0,2,b);b=this.hex_with_component(b,
1,c);return b=this.hex_with_component(b,0,e)},component_from_hex:function(b,c){return b>>c*8&255},hex_with_component:function(b,c,e){return e<<(f=c*8)|b&~(255<<f)}}}(),dat.color.toString,dat.utils.common);