/// <summary>
/// Serializes the specified <see cref="ColourCollection" /> and writes the palette to a file using the specified Stream.
/// </summary>
/// <param name="stream">The <see cref="Stream" /> used to write the palette.</param>
/// <param name="palette">The <see cref="ColourCollection" /> to serialize.</param>
void IPaletteSerialiser.Serialise(Stream stream, ColourCollection palette)
{
this.Serialise(stream, palette);
}
/// <summary>
/// Deserializes the <see cref="ColourCollection" /> contained by the specified <see cref="Stream" />.
/// </summary>
/// <param name="stream">The <see cref="Stream" /> that contains the palette to deserialize.</param>
/// <returns>The <see cref="ColourCollection" /> being deserialized.</returns>
public override ColourCollection Deserialise(Stream stream)
{
ColourCollection results;
if (stream == null)
{
throw new ArgumentNullException(nameof(stream));
}
results = new ColourCollection();
using (StreamReader reader = new StreamReader(stream))
{
string header;
int swatchIndex;
bool readingPalette;
readingPalette = false;
// check signature
header = reader.ReadLine();
if (header != "GIMP Palette")
{
throw new InvalidDataException("Invalid palette file");
}
// read the swatches
swatchIndex = 0;
while (!reader.EndOfStream)
{
string data;
data = reader.ReadLine();
if (!string.IsNullOrEmpty(data))
{
if (data[0] == '#')
{
// comment
readingPalette = true;
}
else if (!readingPalette)
{
// custom attribute
}
else if (readingPalette)
{
int r;
int g;
int b;
string[] parts;
string name;
// TODO: Optimize this a touch. Microoptimization? Maybe.
parts = !string.IsNullOrEmpty(data) ? data.Split(new[]
{
' ',
'\t'
}, StringSplitOptions.RemoveEmptyEntries) : new string[0];
name = parts.Length > 3 ? string.Join(" ", parts, 3, parts.Length - 3) : null;
if (!int.TryParse(parts[0], out r) || !int.TryParse(parts[1], out g) || !int.TryParse(parts[2], out b))
{
throw new InvalidDataException(string.Format("Invalid palette contents found with data '{0}'", data));
}
results.Add(Color.FromArgb(r, g, b));
#if USENAMEHACK
results.SetName(swatchIndex, name);
#endif
swatchIndex++;
}
}
}
}
return(results);
}
/// <summary> /// Serializes the specified <see cref="ColourCollection" /> and writes the palette to a file using the specified <see cref="Stream"/>. /// </summary> /// <param name="stream">The <see cref="Stream" /> used to write the palette.</param> /// <param name="palette">The <see cref="ColourCollection" /> to serialize.</param> public abstract void Serialise(Stream stream, ColourCollection palette);
