public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
{
if (destinationType == typeof(string))
{
BarcodeBase code = value as BarcodeBase;
if (code == null)
{
return("");
}
return(code.Name);
}
return(base.ConvertTo(context, culture, value, destinationType));
}
public System.IO.Stream GetBarcode(RequestSettings settings)
{
BarcodeBase b = GetBarcode(settings.BarcodeFormat);
if (!b.IsValidData(settings.Data))
{
throw new ArgumentException("The data is not valid for the requested barcode");
}
BarcodeSettings bs = b.DefaultSettings.Copy();
bs.Size = settings.Size;
bs.Scale = settings.Scale;
bs.LeftMargin = settings.LeftMargin;
bs.TopMargin = settings.TopMargin;
bs.RightMargin = settings.RightMargin;
bs.BottomMargin = settings.BottomMargin;
System.Drawing.Bitmap result = b.Generate(settings.Data, bs);
System.IO.MemoryStream resultstrm = new System.IO.MemoryStream();
result.Save(resultstrm, settings.Format);
return(resultstrm);
}
///<summary>
/// Render the control on a canvas
///</summary>
/// <param name="canvas">Canvas formular</param>
/// <param name="formular">Formular</param>
/// <param name="command">Command instance</param>
/// <param name="relative">Relative position</param>
/// <param name="dpi">DPI</param>
public override void Render(Canvas canvas, EPLFormular formular, EPLCommand command, Tuple <double, double> relative, int dpiX, int dpiY)
{
EPL.BarcodeCommand cmd = (EPL.BarcodeCommand)command;
BarcodeBase barcode = null;
switch (cmd.P4)
{
case "3":
barcode = new RadBarcode39();
break;
case "1A":
barcode = new RadBarcode128A();
break;
case "B":
barcode = new RadBarcode128B();
break;
case "C":
barcode = new RadBarcode128C();
break;
case "E80":
case "E82":
case "E85":
barcode = new RadBarcodeEAN8();
break;
case "E30":
case "E32":
case "E35":
barcode = new RadBarcodeEAN8();
break;
case "UA0":
barcode = new RadBarcodeUPCA();
break;
case "UE0":
barcode = new RadBarcodeUPCA();
break;
case "1":
default:
barcode = new RadBarcode128();
break;
}
if (barcode != null)
{
barcode.ToolTip = cmd.CommandName;
string displayText = cmd.Data ?? "--null--";
barcode.FontFamily = new FontFamily("Consolas");
if (displayText.StartsWith("\""))
{
displayText = displayText.Remove(0, 1);
}
if (displayText.EndsWith("\""))
{
displayText = displayText.Remove(displayText.Length - 1, 1);
}
barcode.Text = displayText;
// Set coordinates
int _x = 0;
int _y = 0;
if (int.TryParse(cmd.P1, out _x) && int.TryParse(cmd.P2, out _y))
{
var coord = UnitHelper.DotToPixel(8, _x, _y, dpiX, dpiY);
if (relative != null)
{
Canvas.SetLeft(barcode, coord.Item1 + relative.Item1);
Canvas.SetTop(barcode, coord.Item2 + relative.Item2);
}
else
{
Canvas.SetLeft(barcode, coord.Item1);
Canvas.SetTop(barcode, coord.Item2);
}
}
// Set height, default will be 70 dots
double bHeight = 70;
double.TryParse(cmd.P7, out bHeight);
barcode.Height = UnitHelper.DotToPixel(8, bHeight, dpiY) + 5;
switch (cmd.P3)
{
case "1":
barcode.LayoutTransform = new RotateTransform(90);
break;
case "2":
barcode.LayoutTransform = new RotateTransform(180);
break;
case "3":
barcode.LayoutTransform = new RotateTransform(270);
break;
}
//block.FontSize = PointsToPixels(12);
barcode.ShowText = true;
canvas.Children.Add(barcode);
barcode.Background = new SolidColorBrush(Colors.WhiteSmoke);
canvas.UpdateLayout();
barcode.UpdateLayout();
int narrowBarWide = 1;
if (int.TryParse(cmd.P5, out narrowBarWide))
{
barcode.Width = barcode.ActualWidth * narrowBarWide;
}
// Must be under the width calculation, because otherwise it did not work...
if (cmd.P8 != "B")
{
barcode.ShowText = false;
}
barcode.ShowChecksum = false;
}
}
/// <summary>
/// WXY扩展-设置二维码对象-指定条码类型
/// </summary>
/// <param name="report"></param>
/// <param name="key"></param>
/// <param name="value"></param>
/// <param name="borcodetype"></param>
public static BarcodeObject SetBarcodeObject_Text(this Report report, string key, string value, BarcodeBase borcodetype)
{
BarcodeObject barcode = null;
var obj = report.FindObject(key);
if (obj != null)
{
if (obj is BarcodeObject)
{
barcode = obj as BarcodeObject;
barcode.Barcode = borcodetype;
barcode.Text = value;
}
}
return(barcode);
}
