/////////////////////////////////////////////////////////////////////
// save barcode image
/////////////////////////////////////////////////////////////////////
private void OnSavePNG(object sender, EventArgs e)
{
// save file dialog box
SaveFileDialog Dialog = new SaveFileDialog();
Dialog.DefaultExt = ".png";
Dialog.AddExtension = true;
Dialog.Filter = "Png image files (*.png)|*.png";
Dialog.Title = "Save barcode in PNG format";
Dialog.InitialDirectory = Directory.GetCurrentDirectory();
Dialog.RestoreDirectory = true;
Dialog.FileName = "Pdf417Barcode.png";
if (Dialog.ShowDialog() != DialogResult.OK)
{
return;
}
// save image as png file
Encoder.SaveBarcodeToPngFile(Dialog.FileName);
// start image editor
Process.Start(Dialog.FileName);
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;
}