/// <summary>
/// Initializes a new instance of the <see cref="LAB"/> struct.
/// </summary>
/// <param name="lab">The color in <see cref="LAB"/> color space.</param>
public LAB(LAB lab)
: this()
{
L = lab.L;
A = lab.A;
B = lab.B;
}
/// <summary>
/// Converts the instance into the target <see cref="IColorSpace"/>.
/// </summary>
/// <typeparam name="T">The target <see cref="IColorSpace"/> in which the instance should be converted.</typeparam>
/// <returns>
/// The converted <see cref="IColorSpace"/> instance.
/// </returns>
public T To <T>() where T : IColorSpace, new()
{
if (typeof(T) == typeof(LCH))
{
// just return a new LCH
return(new T {
Color = Color
});
}
if (typeof(T) == typeof(LAB))
{
// conversion to LAB is supported
return(new T {
Color = ToCIELab().Color
});
}
if (typeof(T) == typeof(LUV))
{
// conversion to LUV is supported
return(new T {
Color = ToCIELuv().Color
});
}
if (ColorSpace == BaseColorSpace.LAB)
{
LAB lab = ToCIELab();
// convert from LAB to the target color space
return(lab.To <T>());
}
if (ColorSpace == BaseColorSpace.LUV)
{
LUV luv = ToCIELuv();
// convert from LAB to the target color space
return(luv.To <T>());
}
// should be never reached because the ColorSpace is either LAB or LUV
return(new T());
}
/// <summary>
/// Converts a source <see cref="IColorSpace"/> into this <see cref="IColorSpace"/>.
/// </summary>
/// <typeparam name="T">The source <see cref="IColorSpace"/> from which this instance should be converted.</typeparam>
/// <param name="color">The <see cref="IColorSpace"/> to be converted.</param>
public void From <T>(T color) where T : IColorSpace, new()
{
if (typeof(T) == typeof(LCH))
{
// just return a new LCH
Color = color.Color;
return;
}
if (typeof(T) == typeof(LAB))
{
// conversion to LAB is supported
Color = FromCIELab(color.Color.A, color.Color.B, color.Color.C).Color;
return;
}
if (typeof(T) == typeof(LUV))
{
// conversion to LUV is supported
Color = FromCIELuv(color.Color.A, color.Color.B, color.Color.C).Color;
return;
}
if (ColorSpace == BaseColorSpace.LAB)
{
// try to convert to LAB
LAB lab = color.To <LAB>();
// convert from LAB to the target color space
Color = FromCIELab(lab).Color;
return;
}
if (ColorSpace == BaseColorSpace.LUV)
{
// try to convert to LUV
LUV luv = color.To <LUV>();
// convert from LUV to the target color space
Color = FromCIELuv(luv).Color;
return;
}
}
/// <summary>
/// Converts from <see cref="LAB"/> to <see cref="XYZ"/> color space.
/// </summary>
/// <param name="lab">The source color in <see cref="LAB"/> color space.</param>
/// <returns>
/// The color in <see cref="XYZ"/> color space.
/// </returns>
public static XYZ ToXYZ(LAB lab)
{
return ToXYZ(lab.L, lab.A, lab.B);
}
/// <summary>
/// Converts from <see cref="LAB"/> to <see cref="LCH"/> (ab) color space.
/// </summary>
/// <param name="lab">The source color <see cref="LAB"/> in color space.</param>
/// <returns>
/// The color in <see cref="LCH"/> (ab) color space.
/// </returns>
public static LCH FromCIELab(LAB lab)
{
return(FromCIELab(lab.L, lab.A, lab.B));
}
