public void Encode_Barcoder_ShouldEncodePdf417CodeCorrectly()
{
// Arrange
var content = "Barcoder";
var expectedDataBits = ImageStringToBools(@"
++++++++.+.+.+...+++.+.+.+++......+++.+.+...+++....+++.+..++...++++.++++.+.++..+++++.+++++.+.+.+++++..+++++++.+...+.+..+
++++++++.+.+.+...+++.+.+.+++......+++.+.+...+++....+++.+..++...++++.++++.+.++..+++++.+++++.+.+.+++++..+++++++.+...+.+..+
++++++++.+.+.+...++++++.+.+...+++.++++.+..+....+...+++.+..+++..++...+..++.+++++..+...++++++.+.+.+++...+++++++.+...+.+..+
++++++++.+.+.+...++++++.+.+...+++.++++.+..+....+...+++.+..+++..++...+..++.+++++..+...++++++.+.+.+++...+++++++.+...+.+..+
++++++++.+.+.+...+.+.+..++++......++...+++++..+..+.+...++..+....+++.+....++..++.++++.+++.+.+...++++++.+++++++.+...+.+..+
++++++++.+.+.+...+.+.+..++++......++...+++++..+..+.+...++..+....+++.+....++..++.++++.+++.+.+...++++++.+++++++.+...+.+..+
++++++++.+.+.+...++.+.++++.+++++..+.++....+++...++.+++.+..+..+++....++....++....+..+.++.+.++++..+++++.+++++++.+...+.+..+
++++++++.+.+.+...++.+.++++.+++++..+.++....+++...++.+++.+..+..+++....++....++....+..+.++.+.++++..+++++.+++++++.+...+.+..+
++++++++.+.+.+...+++.+.+++....++..+++..+.++..+.....+++.+...++.....+.+.++++++..+.++...+++.+.+++..++....+++++++.+...+.+..+
++++++++.+.+.+...+++.+.+++....++..+++..+.++..+.....+++.+...++.....+.+.++++++..+.++...+++.+.+++..++....+++++++.+...+.+..+
");
// Act
IBarcode pdf417 = Pdf417Encoder.Encode(content, 2);
// Assert
pdf417.Should().NotBeNull();
expectedDataBits.Length.Should().Be(pdf417.Bounds.X * pdf417.Bounds.Y);
for (int i = 0; i < expectedDataBits.Length; i++)
{
int x = i % pdf417.Bounds.X;
int y = i / pdf417.Bounds.X;
pdf417.At(x, y).Should().Be(expectedDataBits[i], $"of expected bit on index {i}");
}
}
////////////////////////////////////////////////////////////////////
// Draw Barcode
////////////////////////////////////////////////////////////////////
private void DrawPdf417Barcode()
{
// save graphics state
Contents.SaveGraphicsState();
// create PDF417 barcode
Pdf417Encoder Pdf417 = new Pdf417Encoder();
Pdf417.DefaultDataColumns = 3;
Pdf417.Encode(ArticleLink);
Pdf417.WidthToHeightRatio(2.5);
// convert Pdf417 to black and white image
PdfImage BarcodeImage = new PdfImage(Document);
BarcodeImage.LoadImage(Pdf417);
// draw image
Contents.DrawImage(BarcodeImage, 1.1, 5.2, 2.5);
// define a web link area coinsiding with the qr code
double Height = 2.5 * Pdf417.ImageHeight / Pdf417.ImageWidth;
Page.AddWebLink(1.1, 5.2, 1.1 + 2.5, 5.2 + Height, ArticleLink);
// restore graphics sate
Contents.RestoreGraphicsState();
return;
}
public void Test
(
bool Debug,
string InputFileName
)
{
// create document
using (Document = new PdfDocument(PaperType.Letter, false, UnitOfMeasure.Inch, InputFileName))
{
// set document page mode to open the layers panel
Document.InitialDocDisplay = InitialDocDisplay.UseLayers;
// define font
ArialFont = PdfFont.CreatePdfFont(Document, "Arial", FontStyle.Bold);
// open layer control object (in PDF terms optional content object)
PdfLayers Layers = new PdfLayers(Document, "PDF layers group");
// set layer panel to incluse all layers including ones that are not visible
Layers.ListMode = ListMode.AllPages;
// Add new page
PdfPage Page = new PdfPage(Document);
// Add contents to page
PdfContents Contents = new PdfContents(Page);
// heading
Contents.DrawText(ArialFont, 24, 4.25, 10, TextJustify.Center, "PDF File Writer Layer Test/Demo");
// define layers
PdfLayer DrawingTest = new PdfLayer(Layers, "Drawing Test");
PdfLayer Rectangle = new PdfLayer(Layers, "Rectangle");
PdfLayer HorLines = new PdfLayer(Layers, "Horizontal Lines");
PdfLayer VertLines = new PdfLayer(Layers, "Vertical Lines");
PdfLayer QRCodeLayer = new PdfLayer(Layers, "QRCode barcode");
PdfLayer Pdf417Layer = new PdfLayer(Layers, "PDF417 barcode");
PdfLayer NoBarcodeLayer = new PdfLayer(Layers, "No barcode");
// combine three layers into one group of radio buttons
QRCodeLayer.RadioButton = "Barcode";
Pdf417Layer.RadioButton = "Barcode";
NoBarcodeLayer.RadioButton = "Barcode";
// set the order of layers in the layer pane
Layers.DisplayOrder(DrawingTest);
Layers.DisplayOrder(Rectangle);
Layers.DisplayOrder(HorLines);
Layers.DisplayOrder(VertLines);
Layers.DisplayOrderStartGroup("Barcode group");
Layers.DisplayOrder(QRCodeLayer);
Layers.DisplayOrder(Pdf417Layer);
Layers.DisplayOrder(NoBarcodeLayer);
Layers.DisplayOrderEndGroup();
// start a group layer
Contents.LayerStart(DrawingTest);
// sticky note annotation
PdfAnnotation StickyNote = Page.AddStickyNote(2.0, 9.0, "My sticky note", StickyNoteIcon.Note);
StickyNote.LayerControl = DrawingTest;
// draw a single layer
Contents.LayerStart(Rectangle);
Contents.DrawText(ArialFont, 14, 1.0, 8.0, TextJustify.Left, "Draw rectangle");
Contents.LayerEnd();
// draw a single layer
Contents.LayerStart(HorLines);
Contents.DrawText(ArialFont, 14, 1.0, 7.5, TextJustify.Left, "Draw horizontal lines");
Contents.LayerEnd();
// draw a single layer
Contents.LayerStart(VertLines);
Contents.DrawText(ArialFont, 14, 1.0, 7.0, TextJustify.Left, "Draw vertical lines");
Contents.LayerEnd();
double Left = 4.0;
double Right = 7.0;
double Top = 9.0;
double Bottom = 6.0;
// draw a single layer
Contents.LayerStart(Rectangle);
Contents.SaveGraphicsState();
Contents.SetLineWidth(0.1);
Contents.SetColorStroking(Color.Black);
Contents.SetColorNonStroking(Color.LightBlue);
Contents.DrawRectangle(Left, Bottom, 3.0, 3.0, PaintOp.CloseFillStroke);
Contents.RestoreGraphicsState();
Contents.LayerEnd();
// save graphics state
Contents.SaveGraphicsState();
// draw a single layer
Contents.SetLineWidth(0.02);
Contents.LayerStart(HorLines);
for (int Row = 1; Row < 6; Row++)
{
Contents.DrawLine(Left, Bottom + 0.5 * Row, Right, Bottom + 0.5 * Row);
}
Contents.LayerEnd();
// draw a single layer
Contents.LayerStart(VertLines);
for (int Col = 1; Col < 6; Col++)
{
Contents.DrawLine(Left + 0.5 * Col, Bottom, Left + 0.5 * Col, Top);
}
Contents.LayerEnd();
// restore graphics state
Contents.RestoreGraphicsState();
// terminate a group of layers
Contents.LayerEnd();
// define QRCode barcode
QREncoder QREncoder = new QREncoder();
QREncoder.ErrorCorrection = ErrorCorrection.M;
QREncoder.Encode(QRCodeArticle);
PdfImage QRImage = new PdfImage(Document);
QRImage.LoadImage(QREncoder);
// define PDF417 barcode
Pdf417Encoder Pdf417Encoder = new Pdf417Encoder();
Pdf417Encoder.ErrorCorrection = ErrorCorrectionLevel.AutoMedium;
Pdf417Encoder.Encode(Pdf417Article);
PdfImage Pdf417Image = new PdfImage(Document);
Pdf417Image.LoadImage(Pdf417Encoder);
// draw a single layer
Contents.LayerStart(QRCodeLayer);
Contents.DrawText(ArialFont, 14, 1.0, 2.5, TextJustify.Left, "QRCode Barcode");
Contents.DrawImage(QRImage, 3.7, 2.5 - 1.75, 3.5);
Contents.LayerEnd();
// draw a single layer
Contents.LayerStart(Pdf417Layer);
Contents.DrawText(ArialFont, 14, 1.0, 2.5, TextJustify.Left, "PDF417 Barcode");
Contents.DrawImage(Pdf417Image, 3.7, 2.5 - 1.75 * Pdf417Encoder.ImageHeight / Pdf417Encoder.ImageWidth, 3.5);
Contents.LayerEnd();
// draw a single layer
Contents.LayerStart(NoBarcodeLayer);
Contents.DrawText(ArialFont, 14, 1.0, 3.0, TextJustify.Left, "Display no barcode");
Contents.LayerEnd();
// create pdf file
Document.CreateFile();
// start default PDF reader and display the file
Process Proc = new Process();
Proc.StartInfo = new ProcessStartInfo(InputFileName);
Proc.Start();
}
return;
}
/////////////////////////////////////////////////////////////////////
// create pdf417 barcode image file
/////////////////////////////////////////////////////////////////////
private void OnEncode(object sender, EventArgs e)
{
// get bar width
if (!int.TryParse(BarWidthTextBox.Text.Trim(), out int BarWidth) || BarWidth < 1 || BarWidth > 20)
{
MessageBox.Show("Narrow bar width must be 1 to 20 pixels");
return;
}
// get row height
if (!int.TryParse(RowHeightTextBox.Text.Trim(), out int RowHeight) || RowHeight < 3 * BarWidth || RowHeight > 60)
{
MessageBox.Show("Row height must be 3 times bar width or more in pixels");
return;
}
// get quiet zone
if (!int.TryParse(QuietZoneTextBox.Text.Trim(), out int QuietZone) || QuietZone < 2 * BarWidth || RowHeight > 40)
{
MessageBox.Show("Quiet zone must be 2 times bar width or more in pixels");
return;
}
// get default data columns
if (!int.TryParse(DefDataColTextBox.Text.Trim(), out int DefDataColumns) || DefDataColumns < 1 || DefDataColumns > 30)
{
MessageBox.Show("Number of data columns must be 1 to 30");
return;
}
// disable buttons
EnableButtons(false);
// clear current image
Pdf417Bitmap = null;
// trap encoding errors
try
{
// encoding request
Encoder.EncodingControl = (EncodingControl)EncodingComboBox.SelectedIndex;
// error correction request
Encoder.ErrorCorrection = (ErrorCorrectionLevel)ErrorCorrectionComboBox.SelectedIndex;
// language or character set
int Part = CharacterSetComboBox.SelectedIndex;
if (Part == 10)
{
Part = 15;
}
else if (Part == 9)
{
Part = 13;
}
else
{
Part++;
}
Encoder.GlobalLabelIDCharacterSet = string.Format("ISO-8859-{0}", Part);
// narrow bar width
Encoder.NarrowBarWidth = BarWidth;
// row height
Encoder.RowHeight = RowHeight;
// quiet zone
Encoder.QuietZone = QuietZone;
// default data columns
Encoder.DefaultDataColumns = DefDataColumns;
// load barcode data
Encoder.Encode(DataTextBox.Text);
// create bitmap image
Pdf417Bitmap = Encoder.CreateBarcodeBitmap();
// update screen labels
WidthHeightLabel.Text = ((double)Encoder.ImageWidth / Encoder.ImageHeight).ToString("0.0");
DataRowsLabel.Text = Encoder.DataRows.ToString();
DataColumnsLabel.Text = Encoder.DataColumns.ToString();
#if DEBUG
string ArgLine = string.Format("-Col:{0} -Error:{1} -Width:{2} -Height:{3} -Quiet:{4} -t \"{5}\" \"{6}\"",
10, 7, 6, 20, 15, "TestFile.txt", "Test Image.png");
Pdf417CommandLine.Encode(ArgLine);
#endif
}
catch (Exception Ex)
{
MessageBox.Show("Encoding exception.\r\n" + Ex.Message);
}
// enable buttons
EnableButtons(true);
// repaint panel
Invalidate();
return;
}
public static void Encode
(
string[] Args
)
{
// help
if (Args == null || Args.Length < 2)
{
throw new ArgumentException("help");
}
int DataColumns = 0;
int DataRows = 0;
double Ratio = 0;
bool TextFile = false;
string CharacterSet = null;
string InputFileName = null;
string OutputFileName = null;
string Code;
string Value;
Pdf417Encoder Encoder = new Pdf417Encoder();
for (int ArgPtr = 0; ArgPtr < Args.Length; ArgPtr++)
{
string Arg = Args[ArgPtr];
// file name
if (Arg[0] != '/' && Arg[0] != '-')
{
if (InputFileName == null)
{
InputFileName = Arg;
continue;
}
if (OutputFileName == null)
{
OutputFileName = Arg;
continue;
}
throw new ArgumentException(string.Format("Invalid option. Argument={0}", ArgPtr + 1));
}
// search for colon
int Ptr = Arg.IndexOf(':');
if (Ptr < 0)
{
Ptr = Arg.IndexOf('=');
}
if (Ptr > 0)
{
Code = Arg.Substring(1, Ptr - 1);
Value = Arg.Substring(Ptr + 1);
}
else
{
Code = Arg.Substring(1);
Value = string.Empty;
}
Code = Code.ToLower();
Value = Value.ToLower();
switch (Code)
{
case "encode":
case "n":
EncodingControl EC;
switch (Value)
{
case "auto":
case "a":
EC = EncodingControl.Auto;
break;
case "byte":
case "b":
EC = EncodingControl.ByteOnly;
break;
case "text":
case "t":
EC = EncodingControl.TextAndByte;
break;
default:
throw new ArgumentException("Encoding control option in error");
}
Encoder.EncodingControl = EC;
break;
case "error":
case "e":
ErrorCorrectionLevel ECL;
switch (Value)
{
case "0":
ECL = ErrorCorrectionLevel.Level_0;
break;
case "1":
ECL = ErrorCorrectionLevel.Level_1;
break;
case "2":
ECL = ErrorCorrectionLevel.Level_2;
break;
case "3":
ECL = ErrorCorrectionLevel.Level_3;
break;
case "4":
ECL = ErrorCorrectionLevel.Level_4;
break;
case "5":
ECL = ErrorCorrectionLevel.Level_5;
break;
case "6":
ECL = ErrorCorrectionLevel.Level_6;
break;
case "7":
ECL = ErrorCorrectionLevel.Level_7;
break;
case "8":
ECL = ErrorCorrectionLevel.Level_8;
break;
case "low":
case "l":
ECL = ErrorCorrectionLevel.AutoLow;
break;
case "normal":
case "n":
ECL = ErrorCorrectionLevel.AutoNormal;
break;
case "medium":
case "m":
ECL = ErrorCorrectionLevel.AutoMedium;
break;
case "high":
case "h":
ECL = ErrorCorrectionLevel.AutoHigh;
break;
default:
throw new ArgumentException("Error correction level option in error");
}
Encoder.ErrorCorrection = ECL;
break;
case "width":
case "w":
if (!int.TryParse(Value, out int BarWidth))
{
BarWidth = -1;
}
Encoder.NarrowBarWidth = BarWidth;
break;
case "height":
case "h":
if (!int.TryParse(Value, out int RowHeight))
{
RowHeight = -1;
}
Encoder.RowHeight = RowHeight;
break;
case "quiet":
case "q":
if (!int.TryParse(Value, out int QuietZone))
{
QuietZone = -1;
}
Encoder.QuietZone = QuietZone;
break;
case "col":
case "c":
if (DataRows != 0 || Ratio != 0)
{
throw new ArgumentException("Only one value is allowed for Data Rows, Data Columns and Ratio");
}
if (!int.TryParse(Value, out DataColumns) || DataColumns < 1 || DataColumns > 30)
{
throw new ApplicationException("Data columns in error");
}
break;
case "row":
case "r":
if (DataColumns != 0 || Ratio != 0)
{
throw new ArgumentException("Only one value is allowed for Data Rows, Data Columns and Ratio");
}
if (!int.TryParse(Value, out DataRows) || DataRows < 3 || DataRows > 90)
{
throw new ApplicationException("Data Rows in error");
}
break;
case "ratio":
case "o":
if (DataRows != 0 || DataColumns != 0)
{
throw new ArgumentException("Only one value is allowed for Data Rows, Data Columns and Ratio");
}
if (!double.TryParse(Value, out Ratio) || Ratio < 0.1 || Ratio > 100)
{
throw new ApplicationException("Image aspect ratio (width/height) in error");
}
break;
case "text":
case "t":
TextFile = true;
if (Value != string.Empty)
{
CharacterSet = Value;
}
break;
default:
throw new ApplicationException(string.Format("Invalid argument no {0}, code {1}", ArgPtr + 1, Code));
}
}
if (TextFile)
{
string InputText = File.ReadAllText(InputFileName);
Encoder.Encode(InputText);
}
else
{
byte[] InputBytes = File.ReadAllBytes(InputFileName);
Encoder.Encode(InputBytes);
}
if (DataColumns != 0)
{
if (!Encoder.SetDataColumns(DataColumns))
{
throw new ApplicationException("Set data columns failed");
}
}
else if (DataRows != 0)
{
if (!Encoder.SetDataRows(DataRows))
{
throw new ApplicationException("Set data rows failed");
}
}
else if (Ratio != 0)
{
if (!Encoder.WidthToHeightRatio(Ratio))
{
throw new ApplicationException("Set width to height aspect ratio failed");
}
}
Encoder.SaveBarcodeToPngFile(OutputFileName);
return;
}