/// <summary>
/// Creates a new colour with properties identical to the old one.
/// </summary>
/// <remarks>
/// This is intended for changing the properties of a colour, while
/// preserving the old version's properties, due to changing the
/// reference.
/// </remarks>
/// <returns>The new colour.</returns>
public PaletteColor Clone()
{
var pc = new PaletteColor();
pc.Name = Name;
pc.Color = Color;
pc.Metadata = Metadata;
return(pc);
}
static void ToPhotoshopColorV2(BinaryWriter bw, PaletteColor pc)
{
// write the V1 color, then the string
ToPhotoshopColorV1(bw, pc);
var strWithNull = pc.Name + '\0';
// length, and then string
bw.WriteUInt32BE(Convert.ToUInt32(strWithNull.Length));
bw.WriteStringBE(strWithNull);
}
// TODO: Write based on colorspace
static void ToPhotoshopColorV1(BinaryWriter bw, PaletteColor pc)
{
// 10 bytes: 1 ushort for type, 4 ushorts for channels
if (pc.Color is LabColor)
{
var lab = (LabColor)pc.Color;
bw.WriteUInt16BE((ushort)AdobeColorSpace.Lab);
bw.WriteUInt16BE(Convert.ToUInt16(lab.L * 100));
bw.WriteInt16BE(Convert.ToInt16(lab.A * 100));
bw.WriteInt16BE(Convert.ToInt16(lab.B * 100));
bw.WriteUInt16BE(0); //nop 4th
}
if (pc.Color is CmykColor)
{
var cmyk = (CmykColor)pc.Color;
bw.WriteUInt16BE((ushort)AdobeColorSpace.Lab);
bw.WriteUInt16BE(Convert.ToUInt16(cmyk.Cyan * ushort.MaxValue));
bw.WriteUInt16BE(Convert.ToUInt16(cmyk.Magenta * ushort.MaxValue));
bw.WriteUInt16BE(Convert.ToUInt16(cmyk.Yellow * ushort.MaxValue));
bw.WriteUInt16BE(Convert.ToUInt16(cmyk.Key * ushort.MaxValue));
}
// HSV looks to be a cluster of magic values, see the HACK above
else
{
// we can fall back to RGB easily, especially if it's already
var rgb = pc.Color.ToRgb();
// type
bw.WriteUInt16BE((ushort)AdobeColorSpace.Rgb);
// red channel
bw.WriteUInt16BE(rgb.R);
// green channel
bw.WriteUInt16BE(rgb.G);
// blue channel
bw.WriteUInt16BE(rgb.B);
// no need for fourth channel, so write 0
bw.WriteUInt16BE(0);
}
}
/// <summary>
/// Creates a new color palette from a GIMP palette file.
/// </summary>
/// <param name="file">The file itself, as lines.</param>
public GimpPalette(string[] file)
{
if (file[0] != magic)
{
throw new PaletteException("Palette is not in a valid format.");
}
Colors = new List <PaletteColor>();
Comments = new List <string>();
foreach (string l in file)
{
if (l == magic)
{
continue;
}
if (Regex.IsMatch(l, commentRegex))
{
// empty matches (like just a #) will give a string.Empty
Comments.Add(Regex.Match(l, commentRegex).Groups[1].Value);
}
else if (Regex.IsMatch(l, columnsRegex))
{
int i = 0; // a default
int.TryParse(Regex.Match(l,
columnsRegex).Groups[1].Value, out i);
BucketSize = i;
}
else if (Regex.IsMatch(l, nameRegex))
{
Name = Regex.Match(l, nameRegex).Groups[1].Value;
}
else if (PaletteColor.IsPaletteColorString(l))
{
// i guess we'll try to coax some colours out of it
Colors.Add(new PaletteColor(l));
}
}
}
public ColorDragEventArgs(PaletteColor dragged, PaletteColor target)
{
DraggedColor = dragged;
TargetColor = target;
}
public ColorChangeTextForm(string title, string text, PaletteColor pc) : this()
{
Text = title;
valueBox.Text = text;
Icon = RenderColorIcon.RenderIcon(pc.Color.ToRgb());
}
public ColorGridChangeEventArgs(PaletteColor old, RgbColor @new)
{
Color = old;
NewColor = @new;
}