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.pragma library
function rgbToHsv(r, g, b) {
r = r/255; g = g/255; b = b/255;
var max = Math.max(r, g, b), min = Math.min(r, g, b);
var h, s, v = max;
var d = max - min;
s = max == 0 ? 0 : d / max;
if (max == min){
h = 0; // achromatic
} else {
switch (max) {
case r: h = (g - b) / d + (g < b ? 6 : 0); break;
case g: h = (b - r) / d + 2; break;
case b: h = (r - g) / d + 4; break;
}
h /= 6;
}
return new Array(h, s, v);
}
function hsvToRgb(h, s, v) {
var r, g, b;
var i = Math.floor(h * 6);
var f = h * 6 - i;
var p = v * (1 - s);
var q = v * (1 - f * s);
var t = v * (1 - (1 - f) * s);
switch (i % 6){
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;
}
return new Array(r * 255, g * 255, b * 255);
}
function hsvToHsl(h, s, v) {
var ss, l;
l = ((2.0 - s)*v);
ss = s*v*((l <= 1) ? l : 2 - l);
l /= 2;
return new Array(h, ss, l);
}
function hsvToColor(h, s, v, a) {
var hsl = hsvToHsl(h,s,v);
return Qt.hsla(hsl[0], hsl[1], hsl[2], a);
}
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