protected DoubleColor GetDoubleColor(
ColorWheelBase wl,
double degree,
double currentRadius,
double gradRadius
)
{
DoubleColor val;
AHSL hsl;
DoubleColor dc = wl.GetColor(degree);
switch (PaintMethod)
{
case WheelPaintMethod.Brightness:
val = dc.ToAHSB().Alter(null, 1.0, currentRadius / gradRadius).Double();
break;
case WheelPaintMethod.InverseLuminance:
hsl = dc.ToAHSL();
hsl.Luminance = currentRadius / gradRadius;
val = hsl.Double();
break;
case WheelPaintMethod.Luminance:
hsl = dc.ToAHSL();
hsl.Luminance = 1.0 - currentRadius / gradRadius;
val = hsl.Double();
break;
case WheelPaintMethod.Saturation:
val = dc.ToAHSB().Alter(null, currentRadius / gradRadius).Double();
break;
default:
throw new NotImplementedException();
}
return(val);
}
public void UpdateColor(
Color color
)
{
DoubleColor c = color.Double();
if (!String.IsNullOrEmpty(SliderColorComponent))
{
DoubleColor begin;
DoubleColor end;
m_isGradient = true;
switch (SliderColorComponent.ToLower())
{
case "r":
begin = c.Alter(0);
end = c.Alter(255);
break;
case "g":
begin = c.Alter(null, 0);
end = c.Alter(null, 255);
break;
case "b":
begin = c.Alter(null, null, 0);
end = c.Alter(null, null, 255);
break;
case "alpha":
case "a":
begin = c.Alter(null, null, null, 0);
end = c.Alter(null, null, null, 255);
break;
case "saturation":
case "sat":
begin = c.ToAHSB().Alter(null, 0).Double();
end = c.ToAHSB().Alter(null, 1).Double();
break;
case "brightness":
case "bri":
begin = c.ToAHSB().Alter(null, null, 0).Double();
end = c.ToAHSB().Alter(null, null, 1).Double();
break;
case "hue":
m_calc = (double loc) => ColorWheel.GetColor(loc);
m_isGradient = false;
begin = c;
end = c;
break;
default:
Debug.Assert(false);
begin = Colors.Yellow.Double();
end = Colors.Green.Double();
break;
}
if (m_begin != begin.ToColor() || m_end != end.ToColor())
{
m_begin = begin.ToColor();
m_end = end.ToColor();
UpdateImage();
}
}
}