/// <summary>
/// Get a brush descriptor
/// </summary>
public IBrushDescriptor GetBrushDescriptor(CSequence operands, Matrix matrix, double alpha)
{
var gray = (byte)(int)Math.Round(PdfUtilities.GetDouble(operands[0]) * 255.0);
var color = Color.FromArgb((byte)(alpha * 255), gray, gray, gray);
return(new GrayBrushDescriptor(color));
}
/// <summary>
/// Convert a rendering mode number to an enum value
/// </summary>
public static FontRenderingMode GetRenderingMode(CObject number)
{
var mode = (int)PdfUtilities.GetDouble(number);
FontRenderingMode fontRenderingMode = FontRenderingMode.Unknown;
switch (mode)
{
case 0:
fontRenderingMode = FontRenderingMode.Fill;
break;
case 1:
fontRenderingMode = FontRenderingMode.Stroke;
break;
case 2:
fontRenderingMode = FontRenderingMode.FillAndStroke;
break;
default:
fontRenderingMode = FontRenderingMode.Fill;
break;
}
return(fontRenderingMode);
}
/// <summary>
/// Get a matrix out of a sequence fof operands
/// </summary>
public static Matrix GetMatrix(CSequence operands)
{
var matrix = new Matrix(PdfUtilities.GetDouble(operands[0]),
PdfUtilities.GetDouble(operands[1]),
PdfUtilities.GetDouble(operands[2]),
PdfUtilities.GetDouble(operands[3]),
PdfUtilities.GetDouble(operands[4]),
PdfUtilities.GetDouble(operands[5]));
return(matrix);
}
/// <summary>
/// Get a brush descriptor
/// </summary>
public IBrushDescriptor GetBrushDescriptor(CSequence operands, Matrix matrix, double alpha)
{
float[] colorValues = new float[numberColorComponents];
for (int i = 0; i < numberColorComponents; i++)
{
colorValues[i] = (float)PdfUtilities.GetDouble(operands[i]);
}
Color color = Color.FromAValues((float)alpha, colorValues, GetProfileUri());
return(new ICCBasedBrushDescriptor(color));
}
