build/colorpicker/colorpicker-beta-debug.js

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/*
Copyright (c) 2007, Yahoo! Inc. All rights reserved.
Code licensed under the BSD License:
http://developer.yahoo.net/yui/license.txt
version: 2.4.0
*/
/**
 * Provides color conversion and validation utils
 * @class YAHOO.util.Color
 * @namespace YAHOO.util
 */
YAHOO.util.Color = function() {

    var HCHARS="0123456789ABCDEF", lang=YAHOO.lang;

    return {

        /**
         * Converts 0-1 to 0-255
         * @method real2dec
         * @param n {float} the number to convert
         * @return {int} a number 0-255
         */
        real2dec: function(n) {
            return Math.min(255, Math.round(n*256));
        },

        /**
         * Converts HSV (h[0-360], s[0-1]), v[0-1] to RGB [255,255,255]
         * @method hsv2rgb
         * @param h {int|[int, float, float]} the hue, or an
         *        array containing all three parameters
         * @param s {float} the saturation
         * @param v {float} the value/brightness
         * @return {[int, int, int]} the red, green, blue values in
         *          decimal.
         */
        hsv2rgb: function(h, s, v) { 

            if (lang.isArray(h)) {
                return this.hsv2rgb.call(this, h[0], h[1], h[2]);
            }

            var r, g, b, i, f, p, q, t;
            i = Math.floor((h/60)%6);
            f = (h/60)-i;
            p = v*(1-s);
            q = v*(1-f*s);
            t = v*(1-(1-f)*s);
            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;
            }

            var fn=this.real2dec;