/// <summary>Create an ImageData instance from the passed parameters.</summary>
/// <param name="width">width of the image in pixels</param>
/// <param name="height">height of the image in pixels</param>
/// <param name="components">colour space components</param>
/// <param name="bpc">bits per colour.</param>
/// <param name="data">array containing raw image data</param>
/// <param name="transparency">array containing transparency information</param>
/// <returns>created ImageData object.</returns>
public static ImageData Create(int width, int height, int components, int bpc, byte[] data, int[] transparency
)
{
if (transparency != null && transparency.Length != components * 2)
{
throw new iText.IO.IOException(iText.IO.IOException.TransparencyLengthMustBeEqualTo2WithCcittImages);
}
if (components == 1 && bpc == 1)
{
byte[] g4 = CCITTG4Encoder.Compress(data, width, height);
return(iText.IO.Image.ImageDataFactory.Create(width, height, false, RawImageData.CCITTG4, RawImageData.CCITT_BLACKIS1
, g4, transparency));
}
RawImageData image = new RawImageData(data, ImageType.RAW);
image.height = height;
image.width = 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.colorSpace = components;
image.bpc = bpc;
image.data = data;
image.transparency = transparency;
return(image);
}
protected internal static void UpdateRawImageParameters(RawImageData image, int width, int height, int components
, int bpc, byte[] data, int[] transparency)
{
if (transparency != null && transparency.Length != components * 2)
{
throw new iText.IO.IOException(iText.IO.IOException.TransparencyLengthMustBeEqualTo2WithCcittImages);
}
if (components == 1 && bpc == 1)
{
byte[] g4 = CCITTG4Encoder.Compress(data, width, height);
UpdateRawImageParameters(image, width, height, false, RawImageData.CCITTG4, RawImageData.CCITT_BLACKIS1, g4
, transparency);
}
else
{
UpdateRawImageParameters(image, width, height, components, bpc, data);
image.SetTransparency(transparency);
}
}
/** Gets an <CODE>Image</CODE> with the barcode.
* @return the barcode <CODE>Image</CODE>
* @throws BadElementException on error
*/
virtual public Image GetImage()
{
byte[] b = GetBitMatrix();
byte[] g4 = CCITTG4Encoder.Compress(b, bm.GetWidth(), bm.GetHeight());
return(Image.GetInstance(bm.GetWidth(), bm.GetHeight(), false, Image.CCITTG4, Image.CCITT_BLACKIS1, g4, null));
}