/// <summary>
/// Called by MainForm and internally whenever the document barcodes are updated
/// </summary>
public void Populate()
{
_barcodesListView.Items.Clear();
if (_documentBarcodes != null && _rasterImage != null)
{
PageBarcodes pageBarcodes = _documentBarcodes.Pages[_rasterImage.Page - 1];
foreach (BarcodeData data in pageBarcodes.Barcodes)
{
ListViewItem item = new ListViewItem();
item.Text = BarcodeEngine.GetSymbologyFriendlyName(data.Symbology);
LeadRect rc = data.Bounds;
item.SubItems.Add(string.Format("{0}, {1}, {2}, {3}", rc.Left, rc.Top, rc.Right, rc.Bottom));
string value = data.Value;
if (!string.IsNullOrEmpty(value))
{
// Parse the QR barcodes for ECI data
string eciData = null;
if (data.Symbology == BarcodeSymbology.QR || data.Symbology == BarcodeSymbology.MicroQR)
{
eciData = BarcodeData.ParseECIData(data.GetData());
}
if (!string.IsNullOrEmpty(eciData))
{
item.SubItems.Add(eciData);
}
else
{
item.SubItems.Add(value);
}
}
else
{
item.SubItems.Add("<NO DATA>");
}
_barcodesListView.Items.Add(item);
}
if (pageBarcodes.SelectedIndex != -1)
{
_barcodesListView.Items[pageBarcodes.SelectedIndex].Selected = true;
_barcodesListView.EnsureVisible(pageBarcodes.SelectedIndex);
}
}
UpdateUIState();
}
private void Reader_ReadSymbology(object sender, BarcodeReadSymbologyEventArgs e)
{
bool firstInGroup;
double ms = 0;
switch (e.Operation)
{
case BarcodeReadSymbologyOperation.PreRead:
UpdateMessageLabel(e.Options);
_stopWatch.Start();
break;
case BarcodeReadSymbologyOperation.PostRead:
if (_stopWatch.IsRunning)
{
_stopWatch.Stop();
ms = _stopWatch.ElapsedMilliseconds;
_stopWatch.Reset();
firstInGroup = true;
}
else
{
firstInGroup = false;
}
// Add this item to the list
if (e.Data != null)
{
if (firstInGroup)
{
ListViewGroup group = new ListViewGroup(string.Format(DemosGlobalization.GetResxString(GetType(), "Resx_GroupRead"), ms));
_barcodesListView.Groups.Add(group);
}
ListViewItem item = new ListViewItem();
item.Text = _currentPageNumber.ToString();
item.SubItems.Add(BarcodeEngine.GetSymbologyFriendlyName(e.Data.Symbology));
string value = string.Empty;
string location = string.Empty;
BarcodeData data = e.Data;
if (data != null)
{
value = data.Value;
if (value == null)
{
value = string.Empty;
}
location = string.Format("{0}, {1}, {2}, {3}", data.Bounds.Left, data.Bounds.Top, data.Bounds.Right, data.Bounds.Bottom);
}
else if (e.Error != null)
{
value = e.Error.Message;
}
// Parse the QR barcodes for ECI data
string eciData = null;
if (data.Symbology == BarcodeSymbology.QR || data.Symbology == BarcodeSymbology.MicroQR)
{
eciData = BarcodeData.ParseECIData(data.GetData());
}
if (!string.IsNullOrEmpty(eciData))
{
item.SubItems.Add(eciData);
}
else
{
item.SubItems.Add(value);
}
item.SubItems.Add(location);
item.Group = _barcodesListView.Groups[_barcodesListView.Groups.Count - 1];
_barcodesListView.Items.Add(item);
}
break;
}
Application.DoEvents();
if (_isAborted)
{
e.Status = BarcodeReadSymbologyStatus.Abort;
}
}
public ReadBarcodesResponse ReadBarcodes(ReadBarcodesRequest request)
{
if (request == null)
{
throw new ArgumentNullException("request");
}
var pageNumber = request.PageNumber;
if (string.IsNullOrEmpty(request.DocumentId))
{
throw new ArgumentException("documentId must not be null");
}
if (pageNumber < 0)
{
throw new ArgumentException("'pageNumber' must be a value greater than or equal to 0");
}
// Default is page 1
if (pageNumber == 0)
{
pageNumber = 1;
}
try
{
// Now load the document
var cache = ServiceHelper.Cache;
using (var document = DocumentFactory.LoadFromCache(cache, request.DocumentId))
{
DocumentHelper.CheckLoadFromCache(document);
DocumentHelper.CheckPageNumber(document, pageNumber);
// Set the options
var barcodeEngine = new BarcodeEngine();
document.Barcodes.BarcodeEngine = barcodeEngine;
var barcodeReader = barcodeEngine.Reader;
// Get the symbologies to read
var symbologies = new List <BarcodeSymbology>();
if (request.Symbologies != null && request.Symbologies.Length > 0)
{
symbologies.AddRange(request.Symbologies);
}
else
{
symbologies.AddRange(barcodeReader.GetAvailableSymbologies());
}
// Load the options from config
bool usedCustomOptions = ServiceHelper.SetBarcodeReadOptions(barcodeReader);
if (!usedCustomOptions)
{
ServiceHelper.InitBarcodeReader(barcodeReader, false);
}
var documentPage = document.Pages[pageNumber - 1];
var barcodes = documentPage.ReadBarcodes(request.Bounds, request.MaximumBarcodes, symbologies.ToArray());
if (barcodes.Length == 0 && !usedCustomOptions)
{
// Did not find any barcodes, try again with double pass enabled
ServiceHelper.InitBarcodeReader(barcodeReader, true);
// Do not read MicroPDF417 in this pass since it is too slow
if (symbologies != null && symbologies.Contains(BarcodeSymbology.MicroPDF417))
{
symbologies.Remove(BarcodeSymbology.MicroPDF417);
}
// Try again
barcodes = documentPage.ReadBarcodes(request.Bounds, request.MaximumBarcodes, symbologies.ToArray());
}
// If we found any barcodes, parse the ECI data if available
foreach (var barcode in barcodes)
{
if (barcode.Symbology == BarcodeSymbology.QR || barcode.Symbology == BarcodeSymbology.MicroQR)
{
string eciData = BarcodeData.ParseECIData(barcode.GetData());
if (!string.IsNullOrEmpty(eciData))
{
barcode.Value = eciData;
}
}
}
return(new ReadBarcodesResponse {
Barcodes = barcodes
});
}
}
catch (Exception ex)
{
Trace.WriteLine(string.Format("ReadBarcodes - Error:{1}{0}documentId:{2} pageNumber:{3}", Environment.NewLine, ex.Message, request.DocumentId, pageNumber), "Error");
throw;
}
}