changeset 146:289cea70e582

add color.js lib Ignore-this: d3f8c335904c15629d2cad55349488
author drewp@bigasterisk.com
date Sat, 12 Jul 2014 22:29:14 -0700
parents 7233fdb6b30a
children b8d31256c14c
files service/pilight/static/color.js
diffstat 1 files changed, 840 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/service/pilight/static/color.js	Sat Jul 12 22:29:14 2014 -0700
@@ -0,0 +1,840 @@
+// Copyright (c) 2008-2013, Andrew Brehaut, Tim Baumann, Matt Wilson, 
+//                          Simon Heimler, Michel Vielmetter 
+//
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+// * Redistributions of source code must retain the above copyright notice,
+//   this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above copyright notice,
+//   this list of conditions and the following disclaimer in the documentation
+//   and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+
+// color.js - version 1.0.1
+//
+// HSV <-> RGB code based on code from http://www.cs.rit.edu/~ncs/color/t_convert.html
+// object function created by Douglas Crockford.
+// Color scheme degrees taken from the colorjack.com colorpicker
+//
+// HSL support kindly provided by Tim Baumann - http://github.com/timjb
+
+// create namespaces
+/*global net */
+if ("undefined" == typeof net) { var net = {}; }
+if (!net.brehaut) { net.brehaut = {}; }
+
+// this module function is called with net.brehaut as 'this'
+(function ( ) {
+  "use strict";
+  // Constants
+
+  // css_colors maps color names onto their hex values
+  // these names are defined by W3C
+  var css_colors = {aliceblue:'#F0F8FF',antiquewhite:'#FAEBD7',aqua:'#00FFFF',aquamarine:'#7FFFD4',azure:'#F0FFFF',beige:'#F5F5DC',bisque:'#FFE4C4',black:'#000000',blanchedalmond:'#FFEBCD',blue:'#0000FF',blueviolet:'#8A2BE2',brown:'#A52A2A',burlywood:'#DEB887',cadetblue:'#5F9EA0',chartreuse:'#7FFF00',chocolate:'#D2691E',coral:'#FF7F50',cornflowerblue:'#6495ED',cornsilk:'#FFF8DC',crimson:'#DC143C',cyan:'#00FFFF',darkblue:'#00008B',darkcyan:'#008B8B',darkgoldenrod:'#B8860B',darkgray:'#A9A9A9',darkgrey:'#A9A9A9',darkgreen:'#006400',darkkhaki:'#BDB76B',darkmagenta:'#8B008B',darkolivegreen:'#556B2F',darkorange:'#FF8C00',darkorchid:'#9932CC',darkred:'#8B0000',darksalmon:'#E9967A',darkseagreen:'#8FBC8F',darkslateblue:'#483D8B',darkslategray:'#2F4F4F',darkslategrey:'#2F4F4F',darkturquoise:'#00CED1',darkviolet:'#9400D3',deeppink:'#FF1493',deepskyblue:'#00BFFF',dimgray:'#696969',dimgrey:'#696969',dodgerblue:'#1E90FF',firebrick:'#B22222',floralwhite:'#FFFAF0',forestgreen:'#228B22',fuchsia:'#FF00FF',gainsboro:'#DCDCDC',ghostwhite:'#F8F8FF',gold:'#FFD700',goldenrod:'#DAA520',gray:'#808080',grey:'#808080',green:'#008000',greenyellow:'#ADFF2F',honeydew:'#F0FFF0',hotpink:'#FF69B4',indianred:'#CD5C5C',indigo:'#4B0082',ivory:'#FFFFF0',khaki:'#F0E68C',lavender:'#E6E6FA',lavenderblush:'#FFF0F5',lawngreen:'#7CFC00',lemonchiffon:'#FFFACD',lightblue:'#ADD8E6',lightcoral:'#F08080',lightcyan:'#E0FFFF',lightgoldenrodyellow:'#FAFAD2',lightgray:'#D3D3D3',lightgrey:'#D3D3D3',lightgreen:'#90EE90',lightpink:'#FFB6C1',lightsalmon:'#FFA07A',lightseagreen:'#20B2AA',lightskyblue:'#87CEFA',lightslategray:'#778899',lightslategrey:'#778899',lightsteelblue:'#B0C4DE',lightyellow:'#FFFFE0',lime:'#00FF00',limegreen:'#32CD32',linen:'#FAF0E6',magenta:'#FF00FF',maroon:'#800000',mediumaquamarine:'#66CDAA',mediumblue:'#0000CD',mediumorchid:'#BA55D3',mediumpurple:'#9370D8',mediumseagreen:'#3CB371',mediumslateblue:'#7B68EE',mediumspringgreen:'#00FA9A',mediumturquoise:'#48D1CC',mediumvioletred:'#C71585',midnightblue:'#191970',mintcream:'#F5FFFA',mistyrose:'#FFE4E1',moccasin:'#FFE4B5',navajowhite:'#FFDEAD',navy:'#000080',oldlace:'#FDF5E6',olive:'#808000',olivedrab:'#6B8E23',orange:'#FFA500',orangered:'#FF4500',orchid:'#DA70D6',palegoldenrod:'#EEE8AA',palegreen:'#98FB98',paleturquoise:'#AFEEEE',palevioletred:'#D87093',papayawhip:'#FFEFD5',peachpuff:'#FFDAB9',peru:'#CD853F',pink:'#FFC0CB',plum:'#DDA0DD',powderblue:'#B0E0E6',purple:'#800080',rebeccapurple:'#663399',red:'#FF0000',rosybrown:'#BC8F8F',royalblue:'#4169E1',saddlebrown:'#8B4513',salmon:'#FA8072',sandybrown:'#F4A460',seagreen:'#2E8B57',seashell:'#FFF5EE',sienna:'#A0522D',silver:'#C0C0C0',skyblue:'#87CEEB',slateblue:'#6A5ACD',slategray:'#708090',slategrey:'#708090',snow:'#FFFAFA',springgreen:'#00FF7F',steelblue:'#4682B4',tan:'#D2B48C',teal:'#008080',thistle:'#D8BFD8',tomato:'#FF6347',turquoise:'#40E0D0',violet:'#EE82EE',wheat:'#F5DEB3',white:'#FFFFFF',whitesmoke:'#F5F5F5',yellow:'#FFFF00',yellowgreen:'#9ACD32"'};
+
+  // CSS value regexes, according to http://www.w3.org/TR/css3-values/
+  var css_integer = '(?:\\+|-)?\\d+';
+  var css_float = '(?:\\+|-)?\\d*\\.\\d+';
+  var css_number = '(?:' + css_integer + ')|(?:' + css_float + ')';
+  css_integer = '(' + css_integer + ')';
+  css_float = '(' + css_float + ')';
+  css_number = '(' + css_number + ')';
+  var css_percentage = css_number + '%';
+  var css_whitespace = '\\s*?';
+
+  // http://www.w3.org/TR/2003/CR-css3-color-20030514/
+  var hsl_hsla_regex = new RegExp([
+    '^hsl(a?)\\(', css_number, ',', css_percentage, ',', css_percentage, '(,(', css_number, '))?\\)$'
+  ].join(css_whitespace) );
+  var rgb_rgba_integer_regex = new RegExp([
+    '^rgb(a?)\\(', css_integer, ',', css_integer, ',', css_integer, '(,(', css_number, '))?\\)$'
+  ].join(css_whitespace) );
+  var rgb_rgba_percentage_regex = new RegExp([
+    '^rgb(a?)\\(', css_percentage, ',', css_percentage, ',', css_percentage, '(,(', css_number, '))?\\)$'
+  ].join(css_whitespace) );
+
+  // Package wide variables
+
+  // becomes the top level prototype object
+  var color;
+
+  /* registered_models contains the template objects for all the
+   * models that have been registered for the color class.
+   */
+  var registered_models = [];
+
+
+  /* factories contains methods to create new instance of
+   * different color models that have been registered.
+   */
+  var factories = {};
+
+  // Utility functions
+
+  /* object is Douglas Crockfords object function for prototypal
+   * inheritance.
+   */
+  if (!this.object) {
+    this.object = function (o) {
+      function F () { }
+      F.prototype = o;
+      return new F();
+    };
+  }
+  var object = this.object;
+
+  /* takes a value, converts to string if need be, then pads it
+   * to a minimum length.
+   */
+  function pad ( val, len ) {
+    val = val.toString();
+    var padded = [];
+
+    for (var i = 0, j = Math.max( len - val.length, 0); i < j; i++) {
+      padded.push('0');
+    }
+
+    padded.push(val);
+    return padded.join('');
+  }
+
+
+  /* takes a string and returns a new string with the first letter
+   * capitalised
+   */
+  function capitalise ( s ) {
+    return s.slice(0,1).toUpperCase() + s.slice(1);
+  }
+
+  /* removes leading and trailing whitespace
+   */
+  function trim ( str ) {
+    return str.replace(/^\s+|\s+$/g, '');
+  }
+
+  /* used to apply a method to object non-destructively by
+   * cloning the object and then apply the method to that
+   * new object
+   */
+  function cloneOnApply( meth ) {
+    return function ( ) {
+      var cloned = this.clone();
+      meth.apply(cloned, arguments);
+      return cloned;
+    };
+  }
+
+
+  /* registerModel is used to add additional representations
+   * to the color code, and extend the color API with the new
+   * operatiosn that model provides. see before for examples
+   */
+  function registerModel( name, model ) {
+    var proto = object(color);
+    var fields = []; // used for cloning and generating accessors
+
+    var to_meth = 'to'+ capitalise(name);
+
+    function convertAndApply( meth ) {
+      return function ( ) {
+        return meth.apply(this[to_meth](), arguments);
+      };
+    }
+
+    for (var key in model) if (model.hasOwnProperty(key)) {
+      proto[key] = model[key];
+      var prop = proto[key];
+
+      if (key.slice(0,1) == '_') { continue; }
+      if (!(key in color) && "function" == typeof prop) {
+        // the method found on this object is a) public and b) not
+        // currently supported by the color object. Create an impl that
+        // calls the toModel function and passes that new object
+        // onto the correct method with the args.
+        color[key] = convertAndApply(prop);
+      }
+      else if ("function" != typeof prop) {
+        // we have found a public property. create accessor methods
+        // and bind them up correctly
+        fields.push(key);
+        var getter = 'get'+capitalise(key);
+        var setter = 'set'+capitalise(key);
+
+        color[getter] = convertAndApply(
+          proto[getter] = (function ( key ) {
+            return function ( ) {
+              return this[key];
+            };
+          })( key )
+        );
+
+        color[setter] = convertAndApply(
+          proto[setter] = (function ( key ) {
+            return function ( val ) {
+              var cloned = this.clone();
+              cloned[key] = val;
+              return cloned;
+            };
+          })( key )
+        );
+      }
+    } // end of for over model
+
+    // a method to create a new object - largely so prototype chains dont
+    // get insane. This uses an unrolled 'object' so that F is cached
+    // for later use. this is approx a 25% speed improvement
+    function F () { }
+    F.prototype = proto;
+    function factory ( ) {
+      return new F();
+    }
+    factories[name] = factory;
+
+    proto.clone = function () {
+      var cloned = factory();
+      for (var i = 0, j = fields.length; i < j; i++) {
+        var key = fields[i];
+        cloned[key] = this[key];
+      }
+      return cloned;
+    };
+
+    color[to_meth] = function ( ) {
+      return factory();
+    };
+
+    registered_models.push(proto);
+
+    return proto;
+  }// end of registerModel
+
+  // Template Objects
+
+  /* color is the root object in the color hierarchy. It starts
+   * life as a very simple object, but as color models are
+   * registered it has methods programmatically added to manage
+   * conversions as needed.
+   */
+  color = {
+    /* fromObject takes an argument and delegates to the internal
+     * color models to try to create a new instance.
+     */
+    fromObject: function ( o ) {
+      if (!o) {
+        return object(color);
+      }
+
+      for (var i = 0, j = registered_models.length; i < j; i++) {
+        var nu = registered_models[i].fromObject(o);
+        if (nu) {
+          return nu;
+        }
+      }
+
+      return object(color);
+    },
+
+    toString: function ( ) {
+      return this.toCSS();
+    }
+  };
+
+  var transparent = null; // defined with an RGB later.
+
+  /* RGB is the red green blue model. This definition is converted
+   * to a template object by registerModel.
+   */
+  registerModel('RGB', {
+    red:    0,
+    green:  0,
+    blue:   0,
+    alpha:  0,
+
+    /* getLuminance returns a value between 0 and 1, this is the
+     * luminance calcuated according to
+     * http://www.poynton.com/notes/colour_and_gamma/ColorFAQ.html#RTFToC9
+     */
+    getLuminance: function ( ) {
+      return (this.red * 0.2126) + (this.green * 0.7152) + (this.blue * 0.0722);
+    },
+
+    /* does an alpha based blend of color onto this. alpha is the
+     * amount of 'color' to use. (0 to 1)
+     */
+    blend: function ( color , alpha ) {
+      color = color.toRGB();
+      alpha = Math.min(Math.max(alpha, 0), 1);
+      var rgb = this.clone();     
+
+      rgb.red = (rgb.red * (1 - alpha)) + (color.red * alpha);
+      rgb.green = (rgb.green * (1 - alpha)) + (color.green * alpha);
+      rgb.blue = (rgb.blue * (1 - alpha)) + (color.blue * alpha);
+      rgb.alpha = (rgb.alpha * (1 - alpha)) + (color.alpha * alpha);
+
+      return rgb;
+    },
+
+    /* fromObject attempts to convert an object o to and RGB
+     * instance. This accepts an object with red, green and blue
+     * members or a string. If the string is a known CSS color name
+     * or a hexdecimal string it will accept it.
+     */
+    fromObject: function ( o ) {
+      if (o instanceof Array) {
+        return this._fromRGBArray ( o );
+      }
+      if ("string" == typeof o) {
+        return this._fromCSS( trim( o ) );
+      }
+      if (o.hasOwnProperty('red') &&
+          o.hasOwnProperty('green') &&
+          o.hasOwnProperty('blue')) {
+        return this._fromRGB ( o );
+      }
+      // nothing matchs, not an RGB object
+    },
+
+    _stringParsers: [
+        // CSS RGB(A) literal:
+        function ( css ) {
+          css = trim(css);
+
+          var withInteger = match(rgb_rgba_integer_regex, 255);
+          if(withInteger) {
+            return withInteger;
+          }
+          return match(rgb_rgba_percentage_regex, 100);
+
+          function match(regex, max_value) {
+            var colorGroups = css.match( regex );
+
+            // If there is an "a" after "rgb", there must be a fourth parameter and the other way round
+            if (!colorGroups || (!!colorGroups[1] + !!colorGroups[5] === 1)) {
+              return null;
+            }
+
+            var rgb = factories.RGB();
+            rgb.red   = Math.min(1, Math.max(0, colorGroups[2] / max_value));
+            rgb.green = Math.min(1, Math.max(0, colorGroups[3] / max_value));
+            rgb.blue  = Math.min(1, Math.max(0, colorGroups[4] / max_value));
+            rgb.alpha = !!colorGroups[5] ? Math.min(Math.max(parseFloat(colorGroups[6]), 0), 1) : 1;
+
+            return rgb;
+          }
+        },
+
+        function ( css ) {
+            var lower = css.toLowerCase();
+            if (lower in css_colors) {
+              css = css_colors[lower];
+            }
+
+            if (!css.match(/^#([0-9a-fA-F]{3}|[0-9a-fA-F]{6})$/)) {
+              return;
+            }
+
+            css = css.replace(/^#/,'');
+
+            var bytes = css.length / 3;
+
+            var max = Math.pow(16, bytes) - 1;
+
+            var rgb = factories.RGB();
+            rgb.red =   parseInt(css.slice(0, bytes), 16) / max;
+            rgb.green = parseInt(css.slice(bytes * 1,bytes * 2), 16) / max;
+            rgb.blue =  parseInt(css.slice(bytes * 2), 16) / max;
+            rgb.alpha = 1;
+            return rgb;
+        },
+
+        function ( css ) {
+            if (css.toLowerCase() !== 'transparent') return;
+
+            return transparent;
+        }
+    ],
+
+    _fromCSS: function ( css ) {
+      var color = null;
+      for (var i = 0, j = this._stringParsers.length; i < j; i++) {
+          color = this._stringParsers[i](css);
+          if (color) return color;
+      }
+    },
+
+    _fromRGB: function ( RGB ) {
+      var newRGB = factories.RGB();
+
+      newRGB.red = RGB.red;
+      newRGB.green = RGB.green;
+      newRGB.blue = RGB.blue;
+      newRGB.alpha = RGB.hasOwnProperty('alpha') ? RGB.alpha : 1;
+
+      return newRGB;
+    },
+
+    _fromRGBArray: function ( RGB ) {
+      var newRGB = factories.RGB();
+
+      newRGB.red = Math.max(0, Math.min(1, RGB[0] / 255));
+      newRGB.green = Math.max(0, Math.min(1, RGB[1] / 255));
+      newRGB.blue = Math.max(0, Math.min(1, RGB[2] / 255));
+      newRGB.alpha = RGB[3] !== undefined ? Math.max(0, Math.min(1, RGB[3])) : 1;
+
+      return newRGB;
+    },
+
+    // convert to a CSS string. defaults to two bytes a value
+    toCSSHex: function ( bytes ) {
+        bytes = bytes || 2;
+
+        var max = Math.pow(16, bytes) - 1;
+        var css = [
+          "#",
+          pad ( Math.round(this.red * max).toString( 16 ).toUpperCase(), bytes ),
+          pad ( Math.round(this.green * max).toString( 16 ).toUpperCase(), bytes ),
+          pad ( Math.round(this.blue * max).toString( 16 ).toUpperCase(), bytes )
+        ];
+
+        return css.join('');
+    },    
+    
+    toCSS: function ( bytes ) {
+      if (this.alpha === 1) return this.toCSSHex(bytes); 
+
+      var max = 255;
+      
+      var components = [
+        'rgba(',
+        Math.max(0, Math.min(max, Math.round(this.red * max))), ',',
+        Math.max(0, Math.min(max, Math.round(this.green * max))), ',', 
+        Math.max(0, Math.min(max, Math.round(this.blue * max))), ',',
+        Math.max(0, Math.min(1, this.alpha)), 
+        ')'
+      ];
+
+      return components.join('');
+    },
+
+    toHSV: function ( ) {
+      var hsv = factories.HSV();
+      var min, max, delta;
+
+      min = Math.min(this.red, this.green, this.blue);
+      max = Math.max(this.red, this.green, this.blue);
+      hsv.value = max; // v
+
+      delta = max - min;
+
+      if( delta == 0 ) { // white, grey, black
+        hsv.hue = hsv.saturation = 0;
+      }
+      else { // chroma
+        hsv.saturation = delta / max;
+
+        if( this.red == max ) {
+          hsv.hue = ( this.green - this.blue ) / delta; // between yellow & magenta
+        }
+        else if( this.green  == max ) {
+          hsv.hue = 2 + ( this.blue - this.red ) / delta; // between cyan & yellow
+        }
+        else {
+          hsv.hue = 4 + ( this.red - this.green ) / delta; // between magenta & cyan
+        }
+
+        hsv.hue = ((hsv.hue * 60) + 360) % 360; // degrees
+      }
+
+      hsv.alpha = this.alpha;
+
+      return hsv;
+    },
+    toHSL: function ( ) {
+      return this.toHSV().toHSL();
+    },
+
+    toRGB: function ( ) {
+      return this.clone();
+    }
+  });
+
+  transparent = color.fromObject({red: 0, blue: 0, green: 0, alpha: 0});
+
+
+  /* Like RGB above, this object describes what will become the HSV
+   * template object. This model handles hue, saturation and value.
+   * hue is the number of degrees around the color wheel, saturation
+   * describes how much color their is and value is the brightness.
+   */
+  registerModel('HSV', {
+    hue: 0,
+    saturation: 0,
+    value: 1,
+    alpha: 1,
+
+    shiftHue: cloneOnApply(function ( degrees ) {
+      var hue = (this.hue + degrees) % 360;
+      if (hue < 0) {
+        hue = (360 + hue) % 360;
+      }
+
+      this.hue = hue;
+    }),
+
+    devalueByAmount: cloneOnApply(function ( val ) {
+      this.value = Math.min(1, Math.max(this.value - val, 0));
+    }),
+
+    devalueByRatio: cloneOnApply(function ( val ) {
+      this.value = Math.min(1, Math.max(this.value * (1 - val), 0));
+    }),
+
+    valueByAmount: cloneOnApply(function ( val ) {
+      this.value = Math.min(1, Math.max(this.value + val, 0));
+    }),
+
+    valueByRatio: cloneOnApply(function ( val ) {
+      this.value = Math.min(1, Math.max(this.value * (1 + val), 0));
+    }),
+
+    desaturateByAmount: cloneOnApply(function ( val ) {
+      this.saturation = Math.min(1, Math.max(this.saturation - val, 0));
+    }),
+
+    desaturateByRatio: cloneOnApply(function ( val ) {
+      this.saturation = Math.min(1, Math.max(this.saturation * (1 - val), 0));
+    }),
+
+    saturateByAmount: cloneOnApply(function ( val ) {
+      this.saturation = Math.min(1, Math.max(this.saturation + val, 0));
+    }),
+
+    saturateByRatio: cloneOnApply(function ( val ) {
+      this.saturation = Math.min(1, Math.max(this.saturation * (1 + val), 0));
+    }),
+
+    schemeFromDegrees: function ( degrees ) {
+      var newColors = [];
+      for (var i = 0, j = degrees.length; i < j; i++) {
+        var col = this.clone();
+        col.hue = (this.hue + degrees[i]) % 360;
+        newColors.push(col);
+      }
+      return newColors;
+    },
+
+    complementaryScheme: function ( ) {
+      return this.schemeFromDegrees([0,180]);
+    },
+
+    splitComplementaryScheme: function ( ) {
+      return this.schemeFromDegrees([0,150,320]);
+    },
+
+    splitComplementaryCWScheme: function ( ) {
+      return this.schemeFromDegrees([0,150,300]);
+    },
+
+    splitComplementaryCCWScheme: function ( ) {
+      return this.schemeFromDegrees([0,60,210]);
+    },
+
+    triadicScheme: function ( ) {
+      return this.schemeFromDegrees([0,120,240]);
+    },
+
+    clashScheme: function ( ) {
+      return this.schemeFromDegrees([0,90,270]);
+    },
+
+    tetradicScheme: function ( ) {
+      return this.schemeFromDegrees([0,90,180,270]);
+    },
+
+    fourToneCWScheme: function ( ) {
+      return this.schemeFromDegrees([0,60,180,240]);
+    },
+
+    fourToneCCWScheme: function ( ) {
+      return this.schemeFromDegrees([0,120,180,300]);
+    },
+
+    fiveToneAScheme: function ( ) {
+      return this.schemeFromDegrees([0,115,155,205,245]);
+    },
+
+    fiveToneBScheme: function ( ) {
+      return this.schemeFromDegrees([0,40,90,130,245]);
+    },
+
+    fiveToneCScheme: function ( ) {
+      return this.schemeFromDegrees([0,50,90,205,320]);
+    },
+
+    fiveToneDScheme: function ( ) {
+      return this.schemeFromDegrees([0,40,155,270,310]);
+    },
+
+    fiveToneEScheme: function ( ) {
+      return this.schemeFromDegrees([0,115,230,270,320]);
+    },
+
+    sixToneCWScheme: function ( ) {
+      return this.schemeFromDegrees([0,30,120,150,240,270]);
+    },
+
+    sixToneCCWScheme: function ( ) {
+      return this.schemeFromDegrees([0,90,120,210,240,330]);
+    },
+
+    neutralScheme: function ( ) {
+      return this.schemeFromDegrees([0,15,30,45,60,75]);
+    },
+
+    analogousScheme: function ( ) {
+      return this.schemeFromDegrees([0,30,60,90,120,150]);
+    },
+
+    fromObject: function ( o ) {
+      if (o.hasOwnProperty('hue') &&
+          o.hasOwnProperty('saturation') &&
+          o.hasOwnProperty('value')) {
+        var hsv = factories.HSV();
+
+        hsv.hue = o.hue;
+        hsv.saturation = o.saturation;
+        hsv.value = o.value;
+        hsv.alpha = o.hasOwnProperty('alpha') ? o.alpha : 1;
+
+        return hsv;
+      }
+      // nothing matches, not an HSV object
+      return null;
+    },
+
+    _normalise: function ( ) {
+       this.hue %= 360;
+       this.saturation = Math.min(Math.max(0, this.saturation), 1);
+       this.value = Math.min(Math.max(0, this.value));
+       this.alpha = Math.min(1, Math.max(0, this.alpha));
+    },
+
+    toRGB: function ( ) {
+      this._normalise();
+
+      var rgb = factories.RGB();
+      var i;
+      var f, p, q, t;
+
+      if( this.saturation === 0 ) {
+        // achromatic (grey)
+        rgb.red = this.value;
+        rgb.green = this.value;
+        rgb.blue = this.value;
+        rgb.alpha = this.alpha;
+        return rgb;
+      }
+
+      var h = this.hue / 60;			// sector 0 to 5
+      i = Math.floor( h );
+      f = h - i;			// factorial part of h
+      p = this.value * ( 1 - this.saturation );
+      q = this.value * ( 1 - this.saturation * f );
+      t = this.value * ( 1 - this.saturation * ( 1 - f ) );
+
+      switch( i ) {
+        case 0:
+          rgb.red = this.value;
+          rgb.green = t;
+          rgb.blue = p;
+          break;
+        case 1:
+          rgb.red = q;
+          rgb.green = this.value;
+          rgb.blue = p;
+          break;
+        case 2:
+          rgb.red = p;
+          rgb.green = this.value;
+          rgb.blue = t;
+          break;
+        case 3:
+          rgb.red = p;
+          rgb.green = q;
+          rgb.blue = this.value;
+          break;
+        case 4:
+          rgb.red = t;
+          rgb.green = p;
+          rgb.blue = this.value;
+          break;
+        default:		// case 5:
+          rgb.red = this.value;
+          rgb.green = p;
+          rgb.blue = q;
+          break;
+      }
+
+      rgb.alpha = this.alpha;
+
+      return rgb;
+    },
+    toHSL: function() {
+      this._normalise();
+
+      var hsl = factories.HSL();
+
+      hsl.hue = this.hue;
+      var l = (2 - this.saturation) * this.value,
+          s = this.saturation * this.value;
+      if(l && 2 - l) {
+        s /= (l <= 1) ? l : 2 - l;
+      }
+      l /= 2;
+      hsl.saturation = s;
+      hsl.lightness = l;
+      hsl.alpha = this.alpha;
+
+      return hsl;
+    },
+
+    toHSV: function ( ) {
+      return this.clone();
+    }
+  });
+
+  registerModel('HSL', {
+    hue: 0,
+    saturation: 0,
+    lightness: 0,
+    alpha: 1,
+
+    darkenByAmount: cloneOnApply(function ( val ) {
+      this.lightness = Math.min(1, Math.max(this.lightness - val, 0));
+    }),
+
+    darkenByRatio: cloneOnApply(function ( val ) {
+      this.lightness = Math.min(1, Math.max(this.lightness * (1 - val), 0));
+    }),
+
+    lightenByAmount: cloneOnApply(function ( val ) {
+      this.lightness = Math.min(1, Math.max(this.lightness + val, 0));
+    }),
+
+    lightenByRatio: cloneOnApply(function ( val ) {
+      this.lightness = Math.min(1, Math.max(this.lightness * (1 + val), 0));
+    }),
+
+    fromObject: function ( o ) {
+      if ("string" == typeof o) {
+        return this._fromCSS( o );
+      }
+      if (o.hasOwnProperty('hue') &&
+          o.hasOwnProperty('saturation') &&
+          o.hasOwnProperty('lightness')) {
+        return this._fromHSL ( o );
+      }
+      // nothing matchs, not an RGB object
+    },
+
+    _fromCSS: function ( css ) {
+      var colorGroups = trim( css ).match( hsl_hsla_regex );
+
+      // if there is an "a" after "hsl", there must be a fourth parameter and the other way round
+      if (!colorGroups || (!!colorGroups[1] + !!colorGroups[5] === 1)) {
+        return null;
+      }
+
+      var hsl = factories.HSL();
+      hsl.hue        = (colorGroups[2] % 360 + 360) % 360;
+      hsl.saturation = Math.max(0, Math.min(parseInt(colorGroups[3], 10) / 100, 1));
+      hsl.lightness  = Math.max(0, Math.min(parseInt(colorGroups[4], 10) / 100, 1));
+      hsl.alpha      = !!colorGroups[5] ? Math.max(0, Math.min(1, parseFloat(colorGroups[6]))) : 1;
+
+      return hsl;
+    },
+
+    _fromHSL: function ( HSL ) {
+      var newHSL = factories.HSL();
+
+      newHSL.hue = HSL.hue;
+      newHSL.saturation = HSL.saturation;
+      newHSL.lightness = HSL.lightness;
+
+      newHSL.alpha = HSL.hasOwnProperty('alpha') ? HSL.alpha : 1;
+
+      return newHSL;
+    },
+
+    _normalise: function ( ) {
+       this.hue = (this.hue % 360 + 360) % 360;
+       this.saturation = Math.min(Math.max(0, this.saturation), 1);
+       this.lightness = Math.min(Math.max(0, this.lightness));
+       this.alpha = Math.min(1, Math.max(0, this.alpha));
+    },
+
+    toHSL: function() {
+      return this.clone();
+    },
+    toHSV: function() {
+      this._normalise();
+
+      var hsv = factories.HSV();
+
+      // http://ariya.blogspot.com/2008/07/converting-between-hsl-and-hsv.html
+      hsv.hue = this.hue; // H
+      var l = 2 * this.lightness,
+          s = this.saturation * ((l <= 1) ? l : 2 - l);
+      hsv.value = (l + s) / 2; // V
+      hsv.saturation = ((2 * s) / (l + s)) || 0; // S
+      hsv.alpha = this.alpha;
+
+      return hsv;
+    },
+    toRGB: function() {
+      return this.toHSV().toRGB();
+    }
+  });
+
+  // Package specific exports
+
+  /* the Color function is a factory for new color objects.
+   */
+  function Color( o ) {
+    return color.fromObject( o );
+  }
+  Color.isValid = function( str ) {
+    var key, c = Color( str );
+
+    var length = 0;
+    for(key in c) {
+      if(c.hasOwnProperty(key)) {
+        length++;
+      }
+    }
+
+    return length > 0;
+  };
+  net.brehaut.Color = Color;
+}).call(net.brehaut);
+
+/* Export to CommonJS
+*/
+var module;
+if(module) {
+  module.exports.Color = net.brehaut.Color;
+}