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/*
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/*
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	Copyright (c) 2004-2006, The Dojo Foundation
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	Copyright (c) 2004-2006, The Dojo Foundation
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	All Rights Reserved.
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	All Rights Reserved.
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	Licensed under the Academic Free License version 2.1 or above OR the
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	Licensed under the Academic Free License version 2.1 or above OR the
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	modified BSD license. For more information on Dojo licensing, see:
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	modified BSD license. For more information on Dojo licensing, see:
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		http://dojotoolkit.org/community/licensing.shtml
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		http://dojotoolkit.org/community/licensing.shtml
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*/
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*/
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dojo.provide("dojo.gfx.color.hsl");
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dojo.provide("dojo.gfx.color.hsl");
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dojo.require("dojo.lang.array");
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dojo.require("dojo.lang.array");
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dojo.lang.extend(dojo.gfx.color.Color, {toHsl:function () {
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dojo.lang.extend(dojo.gfx.color.Color, {toHsl:function () {
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	return dojo.gfx.color.rgb2hsl(this.toRgb());
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	return dojo.gfx.color.rgb2hsl(this.toRgb());
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}});
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}});
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dojo.gfx.color.rgb2hsl = function (r, g, b) {
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dojo.gfx.color.rgb2hsl = function (r, g, b) {
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	if (dojo.lang.isArray(r)) {
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	if (dojo.lang.isArray(r)) {
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		b = r[2] || 0;
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		b = r[2] || 0;
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		g = r[1] || 0;
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		g = r[1] || 0;
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		r = r[0] || 0;
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		r = r[0] || 0;
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	}
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	}
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	r /= 255;
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	r /= 255;
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	g /= 255;
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	g /= 255;
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	b /= 255;
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	b /= 255;
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	var h = null;
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	var h = null;
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	var s = null;
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	var s = null;
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	var l = null;
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	var l = null;
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	var min = Math.min(r, g, b);
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	var min = Math.min(r, g, b);
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	var max = Math.max(r, g, b);
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	var max = Math.max(r, g, b);
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	var delta = max - min;
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	var delta = max - min;
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	l = (min + max) / 2;
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	l = (min + max) / 2;
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	s = 0;
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	s = 0;
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	if ((l > 0) && (l < 1)) {
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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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		s = delta / ((l < 0.5) ? (2 * l) : (2 - 2 * l));
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	}
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	}
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	h = 0;
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	h = 0;
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	if (delta > 0) {
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	if (delta > 0) {
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		if ((max == r) && (max != g)) {
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		if ((max == r) && (max != g)) {
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			h += (g - b) / delta;
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			h += (g - b) / delta;
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		}
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		}
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		if ((max == g) && (max != b)) {
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		if ((max == g) && (max != b)) {
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			h += (2 + (b - r) / delta);
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			h += (2 + (b - r) / delta);
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		}
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		}
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		if ((max == b) && (max != r)) {
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		if ((max == b) && (max != r)) {
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			h += (4 + (r - g) / delta);
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			h += (4 + (r - g) / delta);
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		}
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		}
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		h *= 60;
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		h *= 60;
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	}
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	}
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	h = (h == 0) ? 360 : Math.ceil((h / 360) * 255);
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	h = (h == 0) ? 360 : Math.ceil((h / 360) * 255);
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	s = Math.ceil(s * 255);
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	s = Math.ceil(s * 255);
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	l = Math.ceil(l * 255);
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	l = Math.ceil(l * 255);
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	return [h, s, l];
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	return [h, s, l];
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};
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};
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dojo.gfx.color.hsl2rgb = function (h, s, l) {
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dojo.gfx.color.hsl2rgb = function (h, s, l) {
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	if (dojo.lang.isArray(h)) {
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	if (dojo.lang.isArray(h)) {
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		l = h[2] || 0;
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		l = h[2] || 0;
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		s = h[1] || 0;
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		s = h[1] || 0;
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		h = h[0] || 0;
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		h = h[0] || 0;
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	}
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	}
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	h = (h / 255) * 360;
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	h = (h / 255) * 360;
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	if (h == 360) {
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	if (h == 360) {
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		h = 0;
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		h = 0;
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	}
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	}
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	s = s / 255;
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	s = s / 255;
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	l = l / 255;
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	l = l / 255;
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	while (h < 0) {
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	while (h < 0) {
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		h += 360;
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		h += 360;
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	}
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	}
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	while (h > 360) {
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	while (h > 360) {
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		h -= 360;
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		h -= 360;
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	}
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	}
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	var r, g, b;
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	var r, g, b;
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	if (h < 120) {
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	if (h < 120) {
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		r = (120 - h) / 60;
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		r = (120 - h) / 60;
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		g = h / 60;
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		g = h / 60;
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		b = 0;
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		b = 0;
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	} else {
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	} else {
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		if (h < 240) {
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		if (h < 240) {
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			r = 0;
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			r = 0;
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			g = (240 - h) / 60;
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			g = (240 - h) / 60;
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			b = (h - 120) / 60;
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			b = (h - 120) / 60;
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		} else {
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		} else {
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			r = (h - 240) / 60;
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			r = (h - 240) / 60;
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			g = 0;
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			g = 0;
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			b = (360 - h) / 60;
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			b = (360 - h) / 60;
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		}
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		}
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	}
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	}
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	r = Math.min(r, 1);
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	r = Math.min(r, 1);
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	g = Math.min(g, 1);
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	g = Math.min(g, 1);
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	b = Math.min(b, 1);
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	b = Math.min(b, 1);
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	r = 2 * s * r + (1 - s);
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	r = 2 * s * r + (1 - s);
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	g = 2 * s * g + (1 - s);
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	g = 2 * s * g + (1 - s);
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	b = 2 * s * b + (1 - s);
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	b = 2 * s * b + (1 - s);
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	if (l < 0.5) {
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	if (l < 0.5) {
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		r = l * r;
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		r = l * r;
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		g = l * g;
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		g = l * g;
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		b = l * b;
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		b = l * b;
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	} else {
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	} else {
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		r = (1 - l) * r + 2 * l - 1;
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		r = (1 - l) * r + 2 * l - 1;
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		g = (1 - l) * g + 2 * l - 1;
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		g = (1 - l) * g + 2 * l - 1;
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		b = (1 - l) * b + 2 * l - 1;
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		b = (1 - l) * b + 2 * l - 1;
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	}
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	}
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	r = Math.ceil(r * 255);
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	r = Math.ceil(r * 255);
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	g = Math.ceil(g * 255);
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	g = Math.ceil(g * 255);
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	b = Math.ceil(b * 255);
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	b = Math.ceil(b * 255);
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	return [r, g, b];
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	return [r, g, b];
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};
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};
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dojo.gfx.color.hsl2hex = function (h, s, l) {
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dojo.gfx.color.hsl2hex = function (h, s, l) {
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	var rgb = dojo.gfx.color.hsl2rgb(h, s, l);
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	var rgb = dojo.gfx.color.hsl2rgb(h, s, l);
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	return dojo.gfx.color.rgb2hex(rgb[0], rgb[1], rgb[2]);
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	return dojo.gfx.color.rgb2hex(rgb[0], rgb[1], rgb[2]);
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};
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};
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dojo.gfx.color.hex2hsl = function (hex) {
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dojo.gfx.color.hex2hsl = function (hex) {
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	var rgb = dojo.gfx.color.hex2rgb(hex);
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	var rgb = dojo.gfx.color.hex2rgb(hex);
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	return dojo.gfx.color.rgb2hsl(rgb[0], rgb[1], rgb[2]);
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	return dojo.gfx.color.rgb2hsl(rgb[0], rgb[1], rgb[2]);
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};
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};
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