public void Serialize(Stream stream, ColorCollection palette, AdobePhotoshopColorSwatchFileVersion version, AdobePhotoshopColorSwatchColorSpace colorSpace)
{
if (stream == null)
{
throw new ArgumentNullException("stream");
}
if (palette == null)
{
throw new ArgumentNullException("palette");
}
if (version == AdobePhotoshopColorSwatchFileVersion.Version2)
{
this.WritePalette(stream, palette, AdobePhotoshopColorSwatchFileVersion.Version1, colorSpace);
}
this.WritePalette(stream, palette, version, colorSpace);
}
public void Serialize(Stream stream, IEnumerable <Color> palette, AdobePhotoshopColorSwatchFileVersion version,
AdobePhotoshopColorSwatchColorSpace colorSpace)
{
if (stream == null)
{
throw new ArgumentNullException(nameof(stream));
}
if (palette == null)
{
throw new ArgumentNullException(nameof(palette));
}
if (version == AdobePhotoshopColorSwatchFileVersion.Version2)
{
WritePaletteNew(stream, palette, AdobePhotoshopColorSwatchFileVersion.Version1, colorSpace);
}
WritePaletteNew(stream, palette, version, colorSpace);
}
protected virtual void WritePalette(Stream stream, ColorCollection palette, AdobePhotoshopColorSwatchFileVersion version, AdobePhotoshopColorSwatchColorSpace colorSpace)
{
int swatchIndex;
this.WriteInt16(stream, (short)version);
this.WriteInt16(stream, (short)palette.Count);
swatchIndex = 0;
foreach (Color color in palette)
{
short value1;
short value2;
short value3;
short value4;
swatchIndex++;
switch (colorSpace)
{
case AdobePhotoshopColorSwatchColorSpace.Rgb:
value1 = (short)(color.R * 256);
value2 = (short)(color.G * 256);
value3 = (short)(color.B * 256);
value4 = 0;
break;
case AdobePhotoshopColorSwatchColorSpace.Hsb:
value1 = (short)(color.GetHue() * 182.04);
value2 = (short)(color.GetSaturation() * 655.35);
value3 = (short)(color.GetBrightness() * 655.35);
value4 = 0;
break;
case AdobePhotoshopColorSwatchColorSpace.Grayscale:
if (color.R == color.G && color.R == color.B)
{
// already grayscale
value1 = (short)(color.R * 39.0625);
}
else
{
// color is not grayscale, convert
value1 = (short)(((color.R + color.G + color.B) / 3.0) * 39.0625);
}
value2 = 0;
value3 = 0;
value4 = 0;
break;
default:
throw new InvalidOperationException("Color space not supported.");
}
this.WriteInt16(stream, (short)colorSpace);
this.WriteInt16(stream, value1);
this.WriteInt16(stream, value2);
this.WriteInt16(stream, value3);
this.WriteInt16(stream, value4);
if (version == AdobePhotoshopColorSwatchFileVersion.Version2)
{
string name;
#if USENAMEHACK
name = palette.GetName(swatchIndex - 1);
if (string.IsNullOrEmpty(name))
{
name = string.Format("Swatch {0}", swatchIndex);
}
#else
name = color.IsNamedColor ? color.Name : string.Format("Swatch {0}", swatchIndex);
#endif
this.WriteInt32(stream, name.Length);
this.WriteString(stream, name);
}
}
}
protected virtual ColorCollection ReadPalette(Stream stream, AdobePhotoshopColorSwatchFileVersion version)
{
int colorCount;
ColorCollection results;
results = new ColorCollection();
// read the number of colors, which also occupies two bytes
colorCount = this.ReadInt16(stream);
for (int i = 0; i < colorCount; i++)
{
AdobePhotoshopColorSwatchColorSpace colorSpace;
int value1;
int value2;
int value3;
string name;
// again, two bytes for the color space
colorSpace = (AdobePhotoshopColorSwatchColorSpace)(this.ReadInt16(stream));
value1 = this.ReadInt16(stream);
value2 = this.ReadInt16(stream);
value3 = this.ReadInt16(stream);
this.ReadInt16(stream); // only CMYK supports this field. As we can't handle CMYK colors, we read the value to advance the stream but don't do anything with it
if (version == AdobePhotoshopColorSwatchFileVersion.Version2)
{
int length;
// need to read the name even though currently our colour collection doesn't support names
length = ReadInt32(stream);
name = this.ReadString(stream, length);
}
else
{
name = string.Empty;
}
switch (colorSpace)
{
case AdobePhotoshopColorSwatchColorSpace.Rgb:
int red;
int green;
int blue;
// RGB.
// The first three values in the color data are red , green , and blue . They are full unsigned
// 16-bit values as in Apple's RGBColor data structure. Pure red = 65535, 0, 0.
red = value1 / 256;
green = value2 / 256;
blue = value3 / 256;
results.Add(Color.FromArgb(red, green, blue));
break;
case AdobePhotoshopColorSwatchColorSpace.Hsb:
double hue;
double saturation;
double brightness;
// HSB.
// The first three values in the color data are hue , saturation , and brightness . They are full
// unsigned 16-bit values as in Apple's HSVColor data structure. Pure red = 0,65535, 65535.
hue = value1 / 182.04;
saturation = value2 / 655.35;
brightness = value3 / 655.35;
results.Add(new HslColor(hue, saturation, brightness).ToRgbColor());
break;
case AdobePhotoshopColorSwatchColorSpace.Grayscale:
int gray;
// Grayscale.
// The first value in the color data is the gray value, from 0...10000.
gray = (int)(value1 / 39.0625);
results.Add(Color.FromArgb(gray, gray, gray));
break;
default:
throw new InvalidDataException(string.Format("Color space '{0}' not supported.", colorSpace));
}
#if USENAMEHACK
results.SetName(i, name);
#endif
}
return results;
}
public void Serialize(Stream stream, ColorCollection palette, AdobePhotoshopColorSwatchFileVersion version, AdobePhotoshopColorSwatchColorSpace colorSpace)
{
if (stream == null)
{
throw new ArgumentNullException(nameof(stream));
}
if (palette == null)
{
throw new ArgumentNullException(nameof(palette));
}
if (version == AdobePhotoshopColorSwatchFileVersion.Version2)
{
this.WritePalette(stream, palette, AdobePhotoshopColorSwatchFileVersion.Version1, colorSpace);
}
this.WritePalette(stream, palette, version, colorSpace);
}
public void Serialize(Stream stream, ColorCollection palette, AdobePhotoshopColorSwatchFileVersion version)
{
this.Serialize(stream, palette, version, AdobePhotoshopColorSwatchColorSpace.Rgb);
}
protected virtual void WritePalette(Stream stream, ColorCollection palette, AdobePhotoshopColorSwatchFileVersion version, AdobePhotoshopColorSwatchColorSpace colorSpace)
{
int swatchIndex;
this.WriteInt16(stream, (short)version);
this.WriteInt16(stream, (short)palette.Count);
swatchIndex = 0;
foreach (Color color in palette)
{
short value1;
short value2;
short value3;
short value4;
swatchIndex++;
switch (colorSpace)
{
case AdobePhotoshopColorSwatchColorSpace.Rgb:
value1 = (short)(color.R * 256);
value2 = (short)(color.G * 256);
value3 = (short)(color.B * 256);
value4 = 0;
break;
case AdobePhotoshopColorSwatchColorSpace.Hsb:
value1 = (short)(color.GetHue() * 182.04);
value2 = (short)(color.GetSaturation() * 655.35);
value3 = (short)(color.GetBrightness() * 655.35);
value4 = 0;
break;
case AdobePhotoshopColorSwatchColorSpace.Grayscale:
if (color.R == color.G && color.R == color.B)
{
// already grayscale
value1 = (short)(color.R * 39.0625);
}
else
{
// color is not grayscale, convert
value1 = (short)(((color.R + color.G + color.B) / 3.0) * 39.0625);
}
value2 = 0;
value3 = 0;
value4 = 0;
break;
default:
throw new InvalidOperationException("Color space not supported.");
}
this.WriteInt16(stream, (short)colorSpace);
this.WriteInt16(stream, value1);
this.WriteInt16(stream, value2);
this.WriteInt16(stream, value3);
this.WriteInt16(stream, value4);
if (version == AdobePhotoshopColorSwatchFileVersion.Version2)
{
string name;
#if USENAMEHACK
name = palette.GetName(swatchIndex - 1);
if (string.IsNullOrEmpty(name))
{
name = string.Format("Swatch {0}", swatchIndex);
}
#else
name = color.IsNamedColor ? color.Name : string.Format("Swatch {0}", swatchIndex);
#endif
this.WriteInt32(stream, name.Length);
this.WriteString(stream, name);
}
}
}
protected virtual ColorCollection ReadPalette(Stream stream, AdobePhotoshopColorSwatchFileVersion version)
{
int colorCount;
ColorCollection results;
results = new ColorCollection();
// read the number of colors, which also occupies two bytes
colorCount = this.ReadInt16(stream);
for (int i = 0; i < colorCount; i++)
{
AdobePhotoshopColorSwatchColorSpace colorSpace;
int value1;
int value2;
int value3;
string name;
// again, two bytes for the color space
colorSpace = (AdobePhotoshopColorSwatchColorSpace)(this.ReadInt16(stream));
value1 = this.ReadInt16(stream);
value2 = this.ReadInt16(stream);
value3 = this.ReadInt16(stream);
this.ReadInt16(stream); // only CMYK supports this field. As we can't handle CMYK colors, we read the value to advance the stream but don't do anything with it
if (version == AdobePhotoshopColorSwatchFileVersion.Version2)
{
int length;
// need to read the name even though currently our colour collection doesn't support names
length = ReadInt32(stream);
name = this.ReadString(stream, length);
}
else
{
name = string.Empty;
}
switch (colorSpace)
{
case AdobePhotoshopColorSwatchColorSpace.Rgb:
int red;
int green;
int blue;
// RGB.
// The first three values in the color data are red , green , and blue . They are full unsigned
// 16-bit values as in Apple's RGBColor data structure. Pure red = 65535, 0, 0.
red = value1 / 256;
green = value2 / 256;
blue = value3 / 256;
results.Add(Color.FromArgb(red, green, blue));
break;
case AdobePhotoshopColorSwatchColorSpace.Hsb:
double hue;
double saturation;
double brightness;
// HSB.
// The first three values in the color data are hue , saturation , and brightness . They are full
// unsigned 16-bit values as in Apple's HSVColor data structure. Pure red = 0,65535, 65535.
hue = value1 / 182.04;
saturation = value2 / 655.35;
brightness = value3 / 655.35;
results.Add(new HslColor(hue, saturation, brightness).ToRgbColor());
break;
case AdobePhotoshopColorSwatchColorSpace.Grayscale:
int gray;
// Grayscale.
// The first value in the color data is the gray value, from 0...10000.
gray = (int)(value1 / 39.0625);
results.Add(Color.FromArgb(gray, gray, gray));
break;
default:
throw new InvalidDataException(string.Format("Color space '{0}' not supported.", colorSpace));
}
#if USENAMEHACK
results.SetName(i, name);
#endif
}
return(results);
}
public void Serialize(Stream stream, ColorCollection palette, AdobePhotoshopColorSwatchFileVersion version)
{
this.Serialize(stream, palette, version, AdobePhotoshopColorSwatchColorSpace.Rgb);
}
