/// <summary>
/// Rotates focused image with annotations.
/// </summary>
/// <param name="annotationViewer">The annotation viewer.</param>
/// <param name="rotationAngle">Rotation angle in degrees.</param>
/// <param name="borderColorType">Border color type.</param>
/// <param name="pixelFormat">New pixel format.</param>
private static void RotateFocusedImageWithAnnotations(AnnotationViewer annotationViewer, float rotationAngle, BorderColorType borderColorType, PixelFormat pixelFormat)
{
// if pixel formats are not equal
if (pixelFormat != annotationViewer.Image.PixelFormat)
{
// change pixel format
ChangePixelFormatCommand command = new ChangePixelFormatCommand(pixelFormat);
command.ExecuteInPlace(annotationViewer.Image);
}
// rotate the focused image with annotations
annotationViewer.RotateImageWithAnnotations(rotationAngle, borderColorType);
}
/// <summary>
/// Recognizes barcodes synchronously.
/// </summary>
public void ReadBarcodesSync()
{
if (_isRecognitionStarted)
{
throw new InvalidOperationException("Recognition process is executing at this moment.");
}
_isRecognitionStarted = true;
if (InvokeRequired)
{
Invoke(new OnRecoginitionStartedDelegate(OnRecoginitionStarted), EventArgs.Empty);
}
else
{
OnRecoginitionStarted(EventArgs.Empty);
}
try
{
#if !REMOVE_BARCODE_SDK
if (ImageViewer != null)
{
VintasoftImage image = ImageViewer.Image;
if (image != null)
{
ChangePixelFormatCommand convertCommand = null;
switch (image.PixelFormat)
{
case PixelFormat.Gray16:
convertCommand = new ChangePixelFormatCommand(PixelFormat.Gray8);
break;
}
if (convertCommand != null)
{
image = convertCommand.Execute(image);
}
// set settings
if (Rectangle.Size.IsEmpty)
{
ReaderSettings.ScanRectangle = Rectangle.Empty;
}
else
{
ReaderSettings.ScanRectangle = Rectangle;
}
// recognize barcodes
using (Image bitmap = image.GetAsBitmap())
RecognitionResults = _reader.ReadBarcodes(bitmap);
if (convertCommand != null)
{
image.Dispose();
}
}
else
{
RecognitionResults = null;
}
}
else
{
RecognitionResults = null;
}
#endif
}
catch (Exception ex)
{
DemosTools.ShowErrorMessage(ex);
}
finally
{
_isRecognitionStarted = false;
_isAsyncRecognitionStarted = false;
if (InvokeRequired)
{
Invoke(new OnRecoginitionFinishedDelegate(OnRecoginitionFinished), EventArgs.Empty);
}
else
{
OnRecoginitionFinished(EventArgs.Empty);
}
}
}
