private void AnalyzeFiles(object sender, DoWorkEventArgs e)
{
Result = new List <PhotoMetadataModel>();
foreach (var imageFile in _imageFiles)
{
if (Worker.CancellationPending)
{
e.Cancel = true;
return;
}
var newMetadata = new PhotoMetadataModel();
newMetadata.FileName = imageFile;
try
{
var metadata = ImageMetadataReader.ReadMetadata(imageFile);
ReadGpsInformation(newMetadata, metadata);
ReadSubIfInformation(newMetadata, metadata);
}
catch (Exception ex)
{
newMetadata.AnalysisErrors.Add($"Unable to read file: {ex.Message}");
}
Result.Add(newMetadata);
ImageFilesProcessed++;
var percentCompleted = (int)(ImageFilesProcessed / ImageFileCount) * 100;
Worker.ReportProgress(percentCompleted, newMetadata);
}
}
private static void ReadSubIfInformation(PhotoMetadataModel newMetadata, IReadOnlyList <MetadataExtractor.Directory> metadata)
{
try
{
var subIf = metadata.OfType <ExifSubIfdDirectory>().FirstOrDefault();
if (subIf != null)
{
DateTime photoTaken;
if (subIf.TryGetDateTime(ExifDirectoryBase.TagDateTimeOriginal, out photoTaken))
{
newMetadata.PhotoTaken = photoTaken;
}
}
}
catch
{
newMetadata.AnalysisErrors.Add("Unable to read SubIf information");
}
}
private static void ReadGpsInformation(PhotoMetadataModel newMetadata, IReadOnlyList <MetadataExtractor.Directory> metadata)
{
try
{
var gps = metadata.OfType <GpsDirectory>().FirstOrDefault();
if (gps != null)
{
var location = gps.GetGeoLocation();
if (location != null)
{
newMetadata.Longitude = location.Longitude;
newMetadata.Latitude = location.Latitude;
}
}
}
catch
{
newMetadata.AnalysisErrors.Add("Unable to read Gps information");
}
}