/// <summary>Update original image with Raw Image parameters.</summary>
/// <param name="image">to update its parameters with Raw Image parameters.</param>
/// <param name="width">the exact width of the image</param>
/// <param name="height">the exact height of the image</param>
/// <param name="components">1,3 or 4 for GrayScale, RGB and CMYK</param>
/// <param name="bpc">bits per component. Must be 1,2,4 or 8</param>
/// <param name="data">the image data</param>
protected internal static void UpdateRawImageParameters(RawImageData image, int width, int height, int components
, int bpc, byte[] data)
{
image.SetHeight(height);
image.SetWidth(width);
if (components != 1 && components != 3 && components != 4)
{
throw new iText.IO.IOException(iText.IO.IOException.ComponentsMustBe1_3Or4);
}
if (bpc != 1 && bpc != 2 && bpc != 4 && bpc != 8)
{
throw new iText.IO.IOException(iText.IO.IOException.BitsPerComponentMustBe1_2_4or8);
}
image.SetColorSpace(components);
image.SetBpc(bpc);
image.data = data;
}
public static void UpdateImageAttributes(RawImageData image, IDictionary <String, Object> additional)
{
if (!image.IsRawImage())
{
throw new ArgumentException("Raw image expected.");
}
// will also have the CCITT parameters
int colorSpace = image.GetColorSpace();
int typeCCITT = image.GetTypeCcitt();
if (typeCCITT > 0xff)
{
if (!image.IsMask())
{
image.SetColorSpace(1);
}
image.SetBpc(1);
image.SetFilter("CCITTFaxDecode");
int k = typeCCITT - RawImageData.CCITTG3_1D;
IDictionary <String, Object> decodeparms = new Dictionary <String, Object>();
if (k != 0)
{
decodeparms.Put("K", k);
}
if ((colorSpace & RawImageData.CCITT_BLACKIS1) != 0)
{
decodeparms.Put("BlackIs1", true);
}
if ((colorSpace & RawImageData.CCITT_ENCODEDBYTEALIGN) != 0)
{
decodeparms.Put("EncodedByteAlign", true);
}
if ((colorSpace & RawImageData.CCITT_ENDOFLINE) != 0)
{
decodeparms.Put("EndOfLine", true);
}
if ((colorSpace & RawImageData.CCITT_ENDOFBLOCK) != 0)
{
decodeparms.Put("EndOfBlock", false);
}
decodeparms.Put("Columns", image.GetWidth());
decodeparms.Put("Rows", image.GetHeight());
image.decodeParms = decodeparms;
}
else
{
switch (colorSpace)
{
case 1: {
if (image.IsInverted())
{
image.decode = new float[] { 1, 0 };
}
break;
}
case 3: {
if (image.IsInverted())
{
image.decode = new float[] { 1, 0, 1, 0, 1, 0 };
}
break;
}
case 4:
default: {
if (image.IsInverted())
{
image.decode = new float[] { 1, 0, 1, 0, 1, 0, 1, 0 };
}
break;
}
}
if (additional != null)
{
image.SetImageAttributes(additional);
}
if (image.IsMask() && (image.GetBpc() == 1 || image.GetBpc() > 8))
{
image.SetColorSpace(-1);
}
if (image.IsDeflated())
{
image.SetFilter("FlateDecode");
}
}
}
