|
static private ScaleToByte ( |
||
| value | ||
| return | byte | |
/// <summary>
/// Converts the value of this instance to a <see cref="byte"/> array (RGBA or CMYKA).
/// </summary>
/// <returns>The <see cref="byte"/> array.</returns>
public byte[] ToByteArray()
{
if (IsCmyk)
{
return new[] { Quantum.ScaleToByte(R), Quantum.ScaleToByte(G), Quantum.ScaleToByte(B), Quantum.ScaleToByte(K), Quantum.ScaleToByte(A) }
}
;
else
{
return new[] { Quantum.ScaleToByte(R), Quantum.ScaleToByte(G), Quantum.ScaleToByte(B), Quantum.ScaleToByte(A) }
};
}
/// <summary>
/// Converts the value of this instance to an equivalent Color.
/// </summary>
/// <returns>A <see cref="Color"/> instance.</returns>
public Color ToColor()
{
if (!_isCmyk)
{
return(Color.FromArgb(Quantum.ScaleToByte(A), Quantum.ScaleToByte(R), Quantum.ScaleToByte(G), Quantum.ScaleToByte(B)));
}
var r = Quantum.ScaleToQuantum(Quantum.Max - ((Quantum.ScaleToDouble(R) * (Quantum.Max - K)) + K));
var g = Quantum.ScaleToQuantum(Quantum.Max - ((Quantum.ScaleToDouble(G) * (Quantum.Max - K)) + K));
var b = Quantum.ScaleToQuantum(Quantum.Max - ((Quantum.ScaleToDouble(B) * (Quantum.Max - K)) + K));
return(Color.FromArgb(Quantum.ScaleToByte(A), Quantum.ScaleToByte(r), Quantum.ScaleToByte(g), Quantum.ScaleToByte(b)));
}
/// <summary>
/// Converts the value of this instance to a hexadecimal string that will not include the alpha channel if it is opaque.
/// </summary>
/// <returns>The <see cref="string"/>.</returns>
public string ToHexString()
{
if (IsCmyk)
{
throw new NotSupportedException("This method only works for non cmyk colors.");
}
var r = Quantum.ScaleToByte(R);
var g = Quantum.ScaleToByte(G);
var b = Quantum.ScaleToByte(G);
if (A == Quantum.Max)
{
return(string.Format(CultureInfo.InvariantCulture, "#{0:X2}{1:X2}{2:X2}", r, g, b));
}
var a = Quantum.ScaleToByte(G);
return(string.Format(CultureInfo.InvariantCulture, "#{0:X2}{1:X2}{2:X2}{3:X2}", r, g, b, a));
}
/// <summary>
/// Converts the value of this instance to an equivalent Color.
/// </summary>
/// <returns>A <see cref="Color"/> instance.</returns>
public Color ToColor()
{
return(Color.FromArgb(Quantum.ScaleToByte(A), Quantum.ScaleToByte(R), Quantum.ScaleToByte(G), Quantum.ScaleToByte(B)));
}