public TwainScanDriver(IWorkerServiceFactory workerServiceFactory, TwainWrapper twainWrapper, IFormFactory formFactory, ScannedImageHelper scannedImageHelper)
: base(formFactory)
{
this.workerServiceFactory = workerServiceFactory;
this.twainWrapper = twainWrapper;
this.scannedImageHelper = scannedImageHelper;
}
public TwainWrapper(IFormFactory formFactory, IBlankDetector blankDetector, ThumbnailRenderer thumbnailRenderer, ScannedImageHelper scannedImageHelper)
{
this.formFactory = formFactory;
this.blankDetector = blankDetector;
this.thumbnailRenderer = thumbnailRenderer;
this.scannedImageHelper = scannedImageHelper;
}
public WiaScanDriver(IBlankDetector blankDetector, ScannedImageHelper scannedImageHelper, IFormFactory formFactory)
: base(formFactory)
{
this.blankDetector = blankDetector;
this.scannedImageHelper = scannedImageHelper;
this.formFactory = formFactory;
}
public ProxiedScanDriver(ClientContextFactory clientContextFactory, IFormFactory formFactory, ScannedImageHelper scannedImageHelper)
: base(formFactory)
{
this.clientContextFactory = clientContextFactory;
this.formFactory = formFactory;
this.scannedImageHelper = scannedImageHelper;
}
public SaneScanDriver(SaneWrapper saneWrapper, IFormFactory formFactory, IBlankDetector blankDetector, ScannedImageHelper scannedImageHelper)
: base(formFactory)
{
this.saneWrapper = saneWrapper;
this.formFactory = formFactory;
this.blankDetector = blankDetector;
this.scannedImageHelper = scannedImageHelper;
}
public ScanPerformer(IScanDriverFactory driverFactory, IErrorOutput errorOutput, IAutoSave autoSave, AppConfigManager appConfigManager, IProfileManager profileManager, ScannedImageHelper scannedImageHelper)
{
this.driverFactory = driverFactory;
this.errorOutput = errorOutput;
this.autoSave = autoSave;
this.appConfigManager = appConfigManager;
this.profileManager = profileManager;
this.scannedImageHelper = scannedImageHelper;
}
public WiaScanDriver(BackgroundWiaTransfer backgroundWiaTransfer, ForegroundWiaTransfer foregroundWiaTransfer, ThreadFactory threadFactory, IBlankDetector blankDetector, ThumbnailRenderer thumbnailRenderer, ScannedImageHelper scannedImageHelper)
{
this.backgroundWiaTransfer = backgroundWiaTransfer;
this.foregroundWiaTransfer = foregroundWiaTransfer;
this.threadFactory = threadFactory;
this.blankDetector = blankDetector;
this.thumbnailRenderer = thumbnailRenderer;
this.scannedImageHelper = scannedImageHelper;
}
public WiaScanOperation(ScannedImageHelper scannedImageHelper, IBlankDetector blankDetector, IWorkerServiceFactory workerServiceFactory)
{
this.scannedImageHelper = scannedImageHelper;
this.blankDetector = blankDetector;
this.workerServiceFactory = workerServiceFactory;
AllowCancel = true;
AllowBackground = true;
smoothProgress.OutputProgressChanged += SmoothProgressChanged;
}
private ScannedImage TransferImage(WiaBackgroundEventLoop eventLoop, int pageNumber, out bool cancel)
{
try
{
// TODO: Use the NoUI flag uniformly
var transfer = ScanParams.NoUI ? new ConsoleWiaTransfer() : wiaTransfer;
using (var stream = transfer.Transfer(pageNumber, eventLoop, WiaApi.Formats.BMP))
{
if (stream == null)
{
cancel = true;
return(null);
}
cancel = false;
using (Image output = Image.FromStream(stream))
{
using (var result = ScannedImageHelper.PostProcessStep1(output, ScanProfile))
{
if (blankDetector.ExcludePage(result, ScanProfile))
{
return(null);
}
ScanBitDepth bitDepth = ScanProfile.UseNativeUI ? ScanBitDepth.C24Bit : ScanProfile.BitDepth;
var image = new ScannedImage(result, bitDepth, ScanProfile.MaxQuality, ScanProfile.Quality);
image.SetThumbnail(thumbnailRenderer.RenderThumbnail(result));
ScannedImageHelper.PostProcessStep2(image, ScanProfile, pageNumber);
return(image);
}
}
}
}
catch (NoPagesException)
{
if (ScanProfile.PaperSource != ScanSource.Glass && pageNumber == 1)
{
// No pages were in the feeder, so show the user an error
throw new NoPagesException();
}
// At least one page was scanned but now the feeder is empty, so exit normally
cancel = true;
return(null);
}
catch (ScanDriverException)
{
throw;
}
catch (Exception e)
{
throw new ScanDriverUnknownException(e);
}
}
public List <ScannedImage> Scan(IWin32Window dialogParent, bool activate, ScanDevice scanDevice, ScanProfile scanProfile, ScanParams scanParams)
{
if (scanProfile.TwainImpl == TwainImpl.Legacy)
{
return(Legacy.TwainApi.Scan(scanProfile, scanDevice, dialogParent, formFactory));
}
PlatformInfo.Current.PreferNewDSM = scanProfile.TwainImpl != TwainImpl.OldDsm;
var session = new TwainSession(TwainAppId);
var twainForm = formFactory.Create <FTwainGui>();
var images = new List <ScannedImage>();
Exception error = null;
bool cancel = false;
DataSource ds = null;
int pageNumber = 0;
session.TransferReady += (sender, eventArgs) =>
{
Debug.WriteLine("NAPS2.TW - TransferReady");
if (cancel)
{
eventArgs.CancelAll = true;
}
};
session.DataTransferred += (sender, eventArgs) =>
{
Debug.WriteLine("NAPS2.TW - DataTransferred");
pageNumber++;
using (var output = Image.FromStream(eventArgs.GetNativeImageStream()))
{
using (var result = ScannedImageHelper.PostProcessStep1(output, scanProfile))
{
if (blankDetector.ExcludePage(result, scanProfile))
{
return;
}
var bitDepth = output.PixelFormat == PixelFormat.Format1bppIndexed
? ScanBitDepth.BlackWhite
: ScanBitDepth.C24Bit;
var image = new ScannedImage(result, bitDepth, scanProfile.MaxQuality, scanProfile.Quality);
image.SetThumbnail(thumbnailRenderer.RenderThumbnail(result));
ScannedImageHelper.PostProcessStep2(image, scanProfile, pageNumber);
if (scanParams.DetectPatchCodes)
{
foreach (var patchCodeInfo in eventArgs.GetExtImageInfo(ExtendedImageInfo.PatchCode))
{
if (patchCodeInfo.ReturnCode == ReturnCode.Success)
{
image.PatchCode = GetPatchCode(patchCodeInfo);
}
}
}
images.Add(image);
}
}
};
session.TransferError += (sender, eventArgs) =>
{
Debug.WriteLine("NAPS2.TW - TransferError");
if (eventArgs.Exception != null)
{
error = eventArgs.Exception;
}
else if (eventArgs.SourceStatus != null)
{
Log.Error("TWAIN Transfer Error. Return code = {0}; condition code = {1}; data = {2}.",
eventArgs.ReturnCode, eventArgs.SourceStatus.ConditionCode, eventArgs.SourceStatus.Data);
}
else
{
Log.Error("TWAIN Transfer Error. Return code = {0}.", eventArgs.ReturnCode);
}
cancel = true;
twainForm.Close();
};
session.SourceDisabled += (sender, eventArgs) =>
{
Debug.WriteLine("NAPS2.TW - SourceDisabled");
twainForm.Close();
};
twainForm.Shown += (sender, eventArgs) =>
{
if (activate)
{
// TODO: Set this flag based on whether NAPS2 already has focus
// http://stackoverflow.com/questions/7162834/determine-if-current-application-is-activated-has-focus
// Or maybe http://stackoverflow.com/questions/156046/show-a-form-without-stealing-focus
twainForm.Activate();
}
Debug.WriteLine("NAPS2.TW - TwainForm.Shown");
try
{
ReturnCode rc = session.Open(new WindowsFormsMessageLoopHook(dialogParent.Handle));
if (rc != ReturnCode.Success)
{
Debug.WriteLine("NAPS2.TW - Could not open session - {0}", rc);
twainForm.Close();
return;
}
ds = session.FirstOrDefault(x => x.Name == scanDevice.ID);
if (ds == null)
{
Debug.WriteLine("NAPS2.TW - Could not find DS - DS count = {0}", session.Count());
throw new DeviceNotFoundException();
}
rc = ds.Open();
if (rc != ReturnCode.Success)
{
Debug.WriteLine("NAPS2.TW - Could not open DS - {0}", rc);
twainForm.Close();
return;
}
ConfigureDS(ds, scanProfile, scanParams);
var ui = scanProfile.UseNativeUI ? SourceEnableMode.ShowUI : SourceEnableMode.NoUI;
Debug.WriteLine("NAPS2.TW - Enabling DS");
rc = ds.Enable(ui, true, twainForm.Handle);
Debug.WriteLine("NAPS2.TW - Enable finished");
if (rc != ReturnCode.Success)
{
Debug.WriteLine("NAPS2.TW - Enable failed - {0}, rc");
twainForm.Close();
}
}
catch (Exception ex)
{
Debug.WriteLine("NAPS2.TW - Error");
error = ex;
twainForm.Close();
}
};
Debug.WriteLine("NAPS2.TW - Showing TwainForm");
twainForm.ShowDialog(dialogParent);
Debug.WriteLine("NAPS2.TW - TwainForm closed");
if (ds != null && session.IsSourceOpen)
{
Debug.WriteLine("NAPS2.TW - Closing DS");
ds.Close();
}
if (session.IsDsmOpen)
{
Debug.WriteLine("NAPS2.TW - Closing session");
session.Close();
}
if (error != null)
{
Debug.WriteLine("NAPS2.TW - Throwing error - {0}", error);
if (error is ScanDriverException)
{
throw error;
}
throw new ScanDriverUnknownException(error);
}
return(images);
}
public TwainWrapper(IFormFactory formFactory, IBlankDetector blankDetector, ScannedImageHelper scannedImageHelper)
{
this.formFactory = formFactory;
this.blankDetector = blankDetector;
this.scannedImageHelper = scannedImageHelper;
}