/// <summary>
/// Create a new <see cref="IndexedColorSpaceDetails"/>.
/// </summary>
public IndexedColorSpaceDetails(ColorSpaceDetails baseColorSpaceDetails, byte hiVal, IReadOnlyList <byte> colorTable)
: base(ColorSpace.Indexed)
{
BaseColorSpaceDetails = baseColorSpaceDetails ?? throw new ArgumentNullException(nameof(baseColorSpaceDetails));
HiVal = hiVal;
ColorTable = colorTable;
BaseType = baseColorSpaceDetails.BaseType;
}
/// <summary>
/// Create a new <see cref="SeparationColorSpaceDetails"/>.
/// </summary>
public SeparationColorSpaceDetails(NameToken name,
ColorSpaceDetails alternateColorSpaceDetails,
Union <DictionaryToken, StreamToken> tintFunction)
: base(ColorSpace.Separation)
{
Name = name;
AlternateColorSpaceDetails = alternateColorSpaceDetails;
TintFunction = tintFunction;
}
/// <summary>
/// Creates a indexed color space useful for exracting stencil masks as black-and-white images,
/// i.e. with a color palette of two colors (black and white). If the decode parameter array is
/// [0, 1] it indicates that black is at index 0 in the color palette, whereas [1, 0] indicates
/// that the black color is at index 1.
/// </summary>
internal static ColorSpaceDetails Stencil(ColorSpaceDetails colorSpaceDetails, decimal[] decode)
{
var blackIsOne = decode.Length >= 2 && decode[0] == 1 && decode[1] == 0;
return(new IndexedColorSpaceDetails(colorSpaceDetails, 1, blackIsOne ? new byte[] { 255, 0 } : new byte[] { 0, 255 }));
}