////////////////////////////////////////////////////////////////////
/// <summary>
/// PDF QR Code constructor
/// </summary>
/// <param name="Document">Parent PDF document.</param>
/// <param name="DataString">Data string to encode.</param>
/// <param name="ErrorCorrection">Error correction code.</param>
////////////////////////////////////////////////////////////////////
public PdfQRCode
(
PdfDocument Document,
String DataString,
ErrorCorrection ErrorCorrection
) : base(Document, ObjectType.Stream, "/XObject")
{
// create resource code
ResourceCode = Document.GenerateResourceNumber('X');
// create QR Code object
QREncoder Encoder = new QREncoder();
QRCodeMatrix = Encoder.EncodeQRCode(DataString, ErrorCorrection);
MatrixDimension = Encoder.MatrixDimension;
// create stream length object
ImageLengthObject = new PdfObject(Document, ObjectType.Other);
Dictionary.AddIndirectReference("/Length", ImageLengthObject);
// set default values
ModuleSize = 4;
QuietZone = 16;
// exit
return;
}
////////////////////////////////////////////////////////////////////
// Write object to PDF file
////////////////////////////////////////////////////////////////////
internal void ConstructorHelper
(
String DataString,
String[] SegDataString,
ErrorCorrection ErrorCorrection,
Int32 QuietZone = 4
)
{
// create QR Code object
QREncoder Encoder = new QREncoder();
if (DataString != null)
{
Encoder.EncodeQRCode(DataString, ErrorCorrection, QuietZone);
}
else
{
Encoder.EncodeQRCode(SegDataString, ErrorCorrection, QuietZone);
}
// output matrix
// NOTE: Black=true, White=flase
BWImage = Encoder.OutputMatrix;
// image width and height in pixels
MatrixDimension = Encoder.MatrixDimension;
WidthPix = MatrixDimension + 2 * QuietZone;
HeightPix = WidthPix;
// image control for QR code
ImageControl = new PdfImageControl();
ImageControl.ReverseBW = true;
ImageControl.SaveAs = SaveImageAs.BWImage;
// write stream object
WriteObjectToPdfFile();
return;
}
////////////////////////////////////////////////////////////////////
// Constructor
////////////////////////////////////////////////////////////////////
public PdfQRCode
(
PdfDocument Document,
String DataString,
ErrorCorrection ErrorCorrection
) : base(Document, true, "/XObject")
{
// create resource code
ResourceCode = Document.GenerateResourceNumber('X');
// create QR Code object
QREncoder Encoder = new QREncoder();
QRCodeMatrix = Encoder.EncodeQRCode(DataString, ErrorCorrection);
MatrixDimension = Encoder.MatrixDimension;
// create stream length object
ImageLengthObject = new PdfObject(Document, false);
AddToDictionary("/Length", ImageLengthObject.ObjectNumber.ToString() + " 0 R");
// exit
return;
}
////////////////////////////////////////////////////////////////////
/// <summary>
/// PDF QR Code constructor
/// </summary>
/// <param name="Document">Parent PDF document.</param>
/// <param name="SegDataString">Data string array to encode.</param>
/// <param name="ErrorCorrection">Error correction code.</param>
/// <remarks>
/// The program will calculate the best encoding mode for each segment.
/// </remarks>
////////////////////////////////////////////////////////////////////
public PdfQRCode(
PdfDocument Document,
String[] SegDataString,
ErrorCorrection ErrorCorrection
)
: base(Document, ObjectType.Stream, "/XObject")
{
// create resource code
ResourceCode = Document.GenerateResourceNumber('X');
// create QR Code object
QREncoder Encoder = new QREncoder();
QRCodeMatrix = Encoder.EncodeQRCode(SegDataString, ErrorCorrection);
MatrixDimension = Encoder.MatrixDimension;
// create stream length object
ImageLengthObject = new PdfObject(Document, ObjectType.Other);
Dictionary.AddIndirectReference("/Length", ImageLengthObject);
// exit
return;
}
