/// <summary>
/// Gets file types engine.
/// </summary>
/// <param name="filePath">The file path.</param>
/// <returns></returns>
/// <exception cref="Exception">Unsupported format</exception>
public static IFileTypeEngine GetFileTypesEngine(string filePath)
{
IFileTypeEngine engine = null;
FileType fileType = FilesHelper.GetFileType(filePath);
switch (fileType)
{
case FileType.Bmp:
case FileType.Gif:
case FileType.Jpeg:
case FileType.Png:
engine = new SinglePageImageEngine();
break;
case FileType.Tiff:
engine = new TiffEngine();
break;
case FileType.Pdf:
engine = new PdfEngine();
break;
case FileType.Unsupported:
throw new Exception("Unsupported format");
}
return(engine);
}
/// <summary>
/// Adds file to gallery
/// </summary>
/// <param name="filePath">File path</param>
/// <param name="maxNumberOfVerticalLines">The maximum number of vertical lines.</param>
/// <returns></returns>
private ActionResult AddFile(string filePath, int maxNumberOfVerticalLines = 1)
{
if (Images == null)
{
Images = new List <GalleryImage>();
}
try
{
IFileTypeEngine engine = FileTypesEngineFactory.GetFileTypesEngine(filePath);
int totalPages = engine.GetTotalPages(filePath);
int orderNumber = Images.Any() ? Images.Max(x => x.OrderNumber) + 1 : 1;
for (int i = 1; i <= totalPages; i++)
{
Guid imageGuid = Guid.NewGuid();
string imageFileName = $"{imageGuid}.jpg";
string imagePath = Path.Combine(GalleryFolderPath, imageFileName);
string thumbnailFileName = $"{imageGuid}_thumb.jpg";
string thumbnailPath = Path.Combine(GalleryFolderPath, thumbnailFileName);
engine.SavePageToJpeg(filePath, imagePath, i);
new ImagesConverter(imagePath).CreateThumbnail(thumbnailPath, CommonSettings.ThumbnailWidth, CommonSettings.ThumbnailHeight);
GalleryImage galleryImage = new GalleryImage
{
Uid = Guid.NewGuid(),
OrderNumber = orderNumber,
DisplayedName = orderNumber.ToString(ImageNameMask),
ImageFolderPath = GalleryFolderPath,
ImageFileName = imageFileName,
ThumbnailFileName = thumbnailFileName,
RecognitionCompleted = false,
MarkupObjects = new MarkupObjects(maxNumberOfVerticalLines)
};
galleryImage.RecognizableElementOcrCompleted += Image_RecognizableElementOcrCompleted;
Images.Add(galleryImage);
orderNumber++;
}
return(new ActionResult());
}
catch (Exception e)
{
LogHelper.Logger.Error(e, $"Unable to add {filePath} to gallery");
return(new ActionResult(ActionResultType.Error, $"Error while trying to add {filePath} to gallery"));
}
}
