/*	Copyright (c) 2004-2006, The Dojo Foundation	All Rights Reserved.	Licensed under the Academic Free License version 2.1 or above OR the	modified BSD license. For more information on Dojo licensing, see:		http://dojotoolkit.org/community/licensing.shtml*/dojo.provide("dojo.gfx.color.hsv");dojo.require("dojo.lang.array");dojo.require("dojo.math");dojo.lang.extend(dojo.gfx.color.Color, {toHsv:function () {	return dojo.gfx.color.rgb2hsv(this.toRgb());}});dojo.gfx.color.rgb2hsv = function (r, g, b, options) {	if (dojo.lang.isArray(r)) {		if (g) {			options = g;		}		b = r[2] || 0;		g = r[1] || 0;		r = r[0] || 0;	}	var opt = {inputRange:(options && options.inputRange) ? options.inputRange : 255, outputRange:(options && options.outputRange) ? options.outputRange : [255, 255, 255]};	var h = null;	var s = null;	var v = null;	switch (opt.inputRange) {	  case 1:		r = (r * 255);		g = (g * 255);		b = (b * 255);		break;	  case 100:		r = (r / 100) * 255;		g = (g / 100) * 255;		b = (b / 100) * 255;		break;	  default:		break;	}	var min = Math.min(r, g, b);	v = Math.max(r, g, b);	var delta = v - min;	s = (v == 0) ? 0 : delta / v;	if (s == 0) {		h = 0;	} else {		if (r == v) {			h = 60 * (g - b) / delta;		} else {			if (g == v) {				h = 120 + 60 * (b - r) / delta;			} else {				if (b == v) {					h = 240 + 60 * (r - g) / delta;				}			}		}		if (h <= 0) {			h += 360;		}	}	switch (opt.outputRange[0]) {	  case 360:		break;	  case 100:		h = (h / 360) * 100;		break;	  case 1:		h = (h / 360);		break;	  default:		h = (h / 360) * 255;		break;	}	switch (opt.outputRange[1]) {	  case 100:		s = s * 100;	  case 1:		break;	  default:		s = s * 255;		break;	}	switch (opt.outputRange[2]) {	  case 100:		v = (v / 255) * 100;		break;	  case 1:		v = (v / 255);		break;	  default:		break;	}	h = dojo.math.round(h);	s = dojo.math.round(s);	v = dojo.math.round(v);	return [h, s, v];};dojo.gfx.color.hsv2rgb = function (h, s, v, options) {	if (dojo.lang.isArray(h)) {		if (s) {			options = s;		}		v = h[2] || 0;		s = h[1] || 0;		h = h[0] || 0;	}	var opt = {inputRange:(options && options.inputRange) ? options.inputRange : [255, 255, 255], outputRange:(options && options.outputRange) ? options.outputRange : 255};	switch (opt.inputRange[0]) {	  case 1:		h = h * 360;		break;	  case 100:		h = (h / 100) * 360;		break;	  case 360:		h = h;		break;	  default:		h = (h / 255) * 360;	}	if (h == 360) {		h = 0;	}	switch (opt.inputRange[1]) {	  case 100:		s /= 100;		break;	  case 255:		s /= 255;	}	switch (opt.inputRange[2]) {	  case 100:		v /= 100;		break;	  case 255:		v /= 255;	}	var r = null;	var g = null;	var b = null;	if (s == 0) {		r = v;		g = v;		b = v;	} else {		var hTemp = h / 60;		var i = Math.floor(hTemp);		var f = hTemp - i;		var p = v * (1 - s);		var q = v * (1 - (s * f));		var t = v * (1 - (s * (1 - f)));		switch (i) {		  case 0:			r = v;			g = t;			b = p;			break;		  case 1:			r = q;			g = v;			b = p;			break;		  case 2:			r = p;			g = v;			b = t;			break;		  case 3:			r = p;			g = q;			b = v;			break;		  case 4:			r = t;			g = p;			b = v;			break;		  case 5:			r = v;			g = p;			b = q;			break;		}	}	switch (opt.outputRange) {	  case 1:		r = dojo.math.round(r, 2);		g = dojo.math.round(g, 2);		b = dojo.math.round(b, 2);		break;	  case 100:		r = Math.round(r * 100);		g = Math.round(g * 100);		b = Math.round(b * 100);		break;	  default:		r = Math.round(r * 255);		g = Math.round(g * 255);		b = Math.round(b * 255);	}	return [r, g, b];};