samples/TizenWebUI-sample-v1/tizen-web-ui-fw/latest/js/modules/jquery.mobile.tizen.clrlib.js

//>>excludeStart("jqmBuildExclude", pragmas.jqmBuildExclude);
//>>description: Color code converter
//>>label: Color library
//>>group: Tizen:Core

define( [ 
	'jquery',
	'./util/ensurens',
	'jqm/jquery.mobile.core',
	'./jquery.mobile.tizen.core'
	], function ( jQuery ) {

//>>excludeEnd("jqmBuildExclude");

ensureNS("jQuery.mobile.tizen.clrlib");

jQuery.extend( jQuery.mobile.tizen.clrlib, 
{
    nearestInt: function(val) { 
        var theFloor = Math.floor(val);

        return (((val - theFloor) > 0.5) ? (theFloor + 1) : theFloor);
    },

    /*
     * Converts html color string to rgb array.
     *
     * Input: string clr_str, where
     * clr_str is of the form "#aabbcc"
     *
     * Returns: [ r, g, b ], where
     * r is in [0, 1]
     * g is in [0, 1]
     * b is in [0, 1]
     */
    HTMLToRGB: function(clr_str) {
        clr_str = (('#' == clr_str.charAt(0)) ? clr_str.substring(1) : clr_str);

        return ([
            clr_str.substring(0, 2),
            clr_str.substring(2, 4),
            clr_str.substring(4, 6)
            ].map(function(val) {
                return parseInt(val, 16) / 255.0;
            }));
    },

    /*
     * Converts rgb array to html color string.
     *
     * Input: [ r, g, b ], where
     * r is in [0, 1]
     * g is in [0, 1]
     * b is in [0, 1]
     *
     * Returns: string of the form "#aabbcc"
     */
    RGBToHTML: function(rgb) {
        return ("#" + 
            rgb.map(function(val) {
                      var ret = val * 255,
                          theFloor = Math.floor(ret);

                      ret = ((ret - theFloor > 0.5) ? (theFloor + 1) : theFloor);
                      ret = (((ret < 16) ? "0" : "") + (ret & 0xff).toString(16));
                      return ret;
                  })
               .join(""));
    },

    /*
     * Converts hsl to rgb.
     *
     * From http://130.113.54.154/~monger/hsl-rgb.html
     *
     * Input: [ h, s, l ], where
     * h is in [0, 360]
     * s is in [0,   1]
     * l is in [0,   1]
     *
     * Returns: [ r, g, b ], where
     * r is in [0, 1]
     * g is in [0, 1]
     * b is in [0, 1]
     */
    HSLToRGB: function(hsl) {
        var h = hsl[0] / 360.0, s = hsl[1], l = hsl[2];

        if (0 === s)
            return [ l, l, l ];

        var temp2 = ((l < 0.5)
                ? l * (1.0 + s)
                : l + s - l * s),
            temp1 = 2.0 * l - temp2,
            temp3 = {
                r: h + 1.0 / 3.0,
                g: h,
                b: h - 1.0 / 3.0
            };

        temp3.r = ((temp3.r < 0) ? (temp3.r + 1.0) : ((temp3.r > 1) ? (temp3.r - 1.0) : temp3.r));
        temp3.g = ((temp3.g < 0) ? (temp3.g + 1.0) : ((temp3.g > 1) ? (temp3.g - 1.0) : temp3.g));
        temp3.b = ((temp3.b < 0) ? (temp3.b + 1.0) : ((temp3.b > 1) ? (temp3.b - 1.0) : temp3.b));

        ret = [
            (((6.0 * temp3.r) < 1) ? (temp1 + (temp2 - temp1) * 6.0 * temp3.r) :
            (((2.0 * temp3.r) < 1) ? temp2 :
            (((3.0 * temp3.r) < 2) ? (temp1 + (temp2 - temp1) * ((2.0 / 3.0) - temp3.r) * 6.0) :
             temp1))),
            (((6.0 * temp3.g) < 1) ? (temp1 + (temp2 - temp1) * 6.0 * temp3.g) :
            (((2.0 * temp3.g) < 1) ? temp2 :
            (((3.0 * temp3.g) < 2) ? (temp1 + (temp2 - temp1) * ((2.0 / 3.0) - temp3.g) * 6.0) :
             temp1))),
            (((6.0 * temp3.b) < 1) ? (temp1 + (temp2 - temp1) * 6.0 * temp3.b) :
            (((2.0 * temp3.b) < 1) ? temp2 :
            (((3.0 * temp3.b) < 2) ? (temp1 + (temp2 - temp1) * ((2.0 / 3.0) - temp3.b) * 6.0) :
             temp1)))]; 

        return ret;
    },

    /*
     * Converts hsv to rgb.
     *
     * Input: [ h, s, v ], where
     * h is in [0, 360]
     * s is in [0,   1]
     * v is in [0,   1]
     *
     * Returns: [ r, g, b ], where
     * r is in [0, 1]
     * g is in [0, 1]
     * b is in [0, 1]
     */
    HSVToRGB: function(hsv) {
        return $.mobile.tizen.clrlib.HSLToRGB($.mobile.tizen.clrlib.HSVToHSL(hsv));
    },

    /*
     * Converts rgb to hsv.
     *
     * from http://coecsl.ece.illinois.edu/ge423/spring05/group8/FinalProject/HSV_writeup.pdf
     *
     * Input: [ r, g, b ], where
     * r is in [0,   1]
     * g is in [0,   1]
     * b is in [0,   1]
     *
     * Returns: [ h, s, v ], where
     * h is in [0, 360]
     * s is in [0,   1]
     * v is in [0,   1]
     */
    RGBToHSV: function(rgb) {
        var min, max, delta, h, s, v, r = rgb[0], g = rgb[1], b = rgb[2];

        min = Math.min(r, Math.min(g, b));
        max = Math.max(r, Math.max(g, b));
        delta = max - min;

        h = 0;
        s = 0;
        v = max;

        if (delta > 0.00001) {
            s = delta / max;

            if (r === max)
                h = (g - b) / delta ;
            else
            if (g === max)
                h = 2 + (b - r) / delta ;
            else
                h = 4 + (r - g) / delta ;

            h *= 60 ;

            if (h < 0)
                h += 360 ;
        }

        return [h, s, v];
    },

    /*
     * Converts hsv to hsl.
     *
     * Input: [ h, s, v ], where
     * h is in [0, 360]
     * s is in [0,   1]
     * v is in [0,   1]
     *
     * Returns: [ h, s, l ], where
     * h is in [0, 360]
     * s is in [0,   1]
     * l is in [0,   1]
     */
    HSVToHSL: function(hsv) {
        var max = hsv[2],
            delta = hsv[1] * max,
            min = max - delta,
            sum = max + min,
            half_sum = sum / 2,
            s_divisor = ((half_sum < 0.5) ? sum : (2 - max - min));

        return [ hsv[0], ((0 == s_divisor) ? 0 : (delta / s_divisor)), half_sum ];
    },

    /*
     * Converts rgb to hsl
     *
     * Input: [ r, g, b ], where
     * r is in [0,   1]
     * g is in [0,   1]
     * b is in [0,   1]
     *
     * Returns: [ h, s, l ], where
     * h is in [0, 360]
     * s is in [0,   1]
     * l is in [0,   1]
     */
    RGBToHSL: function(rgb) {
        return $.mobile.tizen.clrlib.HSVToHSL($.mobile.tizen.clrlib.RGBToHSV(rgb));
    }
});

//>>excludeStart("jqmBuildExclude", pragmas.jqmBuildExclude);
} );
//>>excludeEnd("jqmBuildExclude");