public virtual void UpdateDraggerWithHSV(HSV hsv)
{
// Set the position of the slider to the correct saturation and brightness
var pos = new CCPoint(StartPos.X + boxPos + (boxSize * (1f - hsv.S)), StartPos.Y + boxPos + (boxSize * hsv.V));
UpdateSliderPosition(pos);
}
public virtual void UpdateWithHSV(HSV hsv)
{
HSV hsvTemp;
hsvTemp.S = 1;
hsvTemp.H = hsv.H;
hsvTemp.V = 1;
RGBA rgb = CCControlUtils.RGBfromHSV(hsvTemp);
Background.Color = new CCColor3B((byte) (rgb.R * 255.0f), (byte) (rgb.G * 255.0f), (byte) (rgb.B * 255.0f));
}
public static RGBA RGBfromHSV(HSV value)
{
float hh, p, q, t, ff;
long i;
RGBA o;
o.A = 1f;
if (value.S <= 0.0f) // < is bogus, just shuts up warnings
{
if (double.IsNaN(value.H)) // value.H == NAN
{
o.R = value.V;
o.G = value.V;
o.B = value.V;
return(o);
}
// error - should never happen
o.R = 0.0f;
o.G = 0.0f;
o.B = 0.0f;
return(o);
}
hh = value.H;
if (hh >= 360.0f)
{
hh = 0.0f;
}
hh /= 60.0f;
i = (long)hh;
ff = hh - i;
p = value.V * (1.0f - value.S);
q = value.V * (1.0f - (value.S * ff));
t = value.V * (1.0f - (value.S * (1.0f - ff)));
switch (i)
{
case 0:
o.R = value.V;
o.G = t;
o.B = p;
break;
case 1:
o.R = q;
o.G = value.V;
o.B = p;
break;
case 2:
o.R = p;
o.G = value.V;
o.B = t;
break;
case 3:
o.R = p;
o.G = q;
o.B = value.V;
break;
case 4:
o.R = t;
o.G = p;
o.B = value.V;
break;
case 5:
default:
o.R = value.V;
o.G = p;
o.B = q;
break;
}
return(o);
}
public static RGBA RGBfromHSV(HSV value)
{
float hh, p, q, t, ff;
long i;
RGBA o;
o.A = 1f;
if (value.S <= 0.0f) // < is bogus, just shuts up warnings
{
if (double.IsNaN(value.H)) // value.H == NAN
{
o.R = value.V;
o.G = value.V;
o.B = value.V;
return o;
}
// error - should never happen
o.R = 0.0f;
o.G = 0.0f;
o.B = 0.0f;
return o;
}
hh = value.H;
if(hh >= 360.0f) hh = 0.0f;
hh /= 60.0f;
i = (long)hh;
ff = hh - i;
p = value.V * (1.0f - value.S);
q = value.V * (1.0f - (value.S * ff));
t = value.V * (1.0f - (value.S * (1.0f - ff)));
switch(i)
{
case 0:
o.R = value.V;
o.G = t;
o.B = p;
break;
case 1:
o.R = q;
o.G = value.V;
o.B = p;
break;
case 2:
o.R = p;
o.G = value.V;
o.B = t;
break;
case 3:
o.R = p;
o.G = q;
o.B = value.V;
break;
case 4:
o.R = t;
o.G = p;
o.B = value.V;
break;
case 5:
default:
o.R = value.V;
o.G = p;
o.B = q;
break;
}
return o;
}
