private byte[] GetBitMatrix()
{
int width = bm.GetWidth();
int height = bm.GetHeight();
int stride = (width + 7) / 8;
byte[] b = new byte[stride * height];
sbyte[][] mt = bm.GetArray();
for (int y = 0; y < height; ++y)
{
sbyte[] line = mt[y];
for (int x = 0; x < width; ++x)
{
if (line[x] != 0)
{
int offset = stride * y + x / 8;
b[offset] |= (byte)(0x80 >> (x % 8));
}
}
}
return(b);
}
/// <summary>* Places the barcode in a <CODE>PdfCanvas</CODE>.</summary>
/// <remarks>
/// * Places the barcode in a <CODE>PdfCanvas</CODE>. The
/// barcode is always placed at coordinates (0, 0). Use the
/// translation matrix to move it elsewhere.
/// </remarks>
/// <param name="canvas">the <CODE>PdfCanvas</CODE> where the barcode will be placed</param>
/// <param name="foreground">the foreground color. It can be <CODE>null</CODE></param>
/// <param name="moduleSide">the size of the square grid cell</param>
/// <returns>the dimensions the barcode occupies</returns>
public virtual Rectangle PlaceBarcode(PdfCanvas canvas, Color foreground, float moduleSide)
{
int width = bm.GetWidth();
int height = bm.GetHeight();
byte[][] mt = bm.GetArray();
if (foreground != null)
{
canvas.SetFillColor(foreground);
}
for (int y = 0; y < height; ++y)
{
byte[] line = mt[y];
for (int x = 0; x < width; ++x)
{
if (line[x] == 0)
{
canvas.Rectangle(x * moduleSide, (height - y - 1) * moduleSide, moduleSide, moduleSide);
}
}
}
canvas.Fill();
return(GetBarcodeSize(moduleSide));
}