public override async Task <IEnumerable <IMetadata> > GetMetadataAsync(IEnumerable <IEntryModel> selectedModels, int modelCount, IEntryModel parentModel)
{
List <IMetadata> retList = new List <IMetadata>();
if (selectedModels.Count() == 1)
{
var diskModel = selectedModels.First() as DiskEntryModelBase;
if (diskModel.IsFileWithExtension(FileExplorer.IO.Defines.FileExtensions.ImageExtensions))
{
try
{
using (var stream = await diskModel.DiskProfile.DiskIO.OpenStreamAsync(diskModel,
FileExplorer.Defines.FileAccess.Read, CancellationToken.None))
using (Bitmap bitmap = new Bitmap(stream))
{
retList.Add(new Metadata(DisplayType.Image, MetadataStrings.strImage, MetadataStrings.strThumbnail,
W32ConverterUtils.ToBitmapImage(stream.ToByteArray()))
{
IsVisibleInSidebar = true
});
}
}
catch { }
}
}
return(retList);
}
public override async Task <IEnumerable <IMetadata> > GetMetadataAsync(IEnumerable <IEntryModel> selectedModels, int modelCount, IEntryModel parentModel)
{
List <IMetadata> retList = new List <IMetadata>();
retList.AddRange(await base.GetMetadataAsync(selectedModels, modelCount, parentModel));
if (selectedModels.Count() == 1)
{
var itemModel = selectedModels.First() as DropBoxItemModel;
if (itemModel.Metadata != null)
{
if (itemModel.Metadata.Thumb_Exists)
{
var thumbnailBytes = (await _clientFunc().GetThumbnailTask(itemModel.Metadata,
DropNet.Models.ThumbnailSize.Large)).RawBytes;
if (thumbnailBytes != null && thumbnailBytes.Length > 0)
{
retList.Add(new Metadata(DisplayType.Image, MetadataStrings.strImage, MetadataStrings.strThumbnail,
W32ConverterUtils.ToBitmapImage(thumbnailBytes))
{
IsVisibleInSidebar = true
});
}
}
}
}
return(retList);
}
public override async Task <IEnumerable <IMetadata> > GetMetadataAsync(IEnumerable <IEntryModel> selectedModels, int modelCount, IEntryModel parentModel)
{
List <IMetadata> retList = new List <IMetadata>();
if (selectedModels.Count() == 1)
{
#region addExifVal
Action <ExifReader, ExifTags> addExifVal = (reader, tag) =>
{
object val = null;
switch (tag)
{
case ExifTags.FNumber:
case ExifTags.FocalLength:
case ExifTags.XResolution:
case ExifTags.YResolution:
int[] rational;
if (reader.GetTagValue(tag, out rational))
{
val = rational[0];
}
break;
case ExifTags.DateTime:
case ExifTags.DateTimeDigitized:
case ExifTags.DateTimeOriginal:
if (reader.GetTagValue <object>(tag, out val))
{
val = DateTime.ParseExact((string)val, "yyyy:MM:dd HH:mm:ss", CultureInfo.InvariantCulture);
}
break;
default:
reader.GetTagValue <object>(tag, out val);
break;
}
if (val != null)
{
DisplayType displayType = DisplayType.Auto;
switch (val.GetType().Name)
{
case "DateTime":
displayType = DisplayType.TimeElapsed;
break;
case "Double":
case "Float":
val = Math.Round(Convert.ToDouble(val), 2).ToString();
displayType = DisplayType.Text;
break;
default:
displayType = DisplayType.Text;
val = val.ToString();
break;
}
retList.Add(new Metadata(displayType, MetadataStrings.strImage, tag.ToString(),
val)
{
IsVisibleInSidebar = true
});
}
};
#endregion
try
{
var diskModel = selectedModels.First() as DiskEntryModelBase;
if (diskModel != null)
{
if (diskModel.IsFileWithExtension(FileExtensions.ExifExtensions))
{
using (var stream = await diskModel.DiskProfile.DiskIO.OpenStreamAsync(diskModel,
FileExplorer.Defines.FileAccess.Read, CancellationToken.None))
using (ExifReader reader = new ExifReader(stream))
{
var thumbnailBytes = reader.GetJpegThumbnailBytes();
if (thumbnailBytes != null && thumbnailBytes.Length > 0)
{
retList.Add(new Metadata(DisplayType.Image, MetadataStrings.strImage, MetadataStrings.strThumbnail,
W32ConverterUtils.ToBitmapImage(thumbnailBytes))
{
IsVisibleInSidebar = true
});
}
else
{
retList.Add(new Metadata(DisplayType.Image, MetadataStrings.strImage, MetadataStrings.strThumbnail,
W32ConverterUtils.ToBitmapImage(stream.ToByteArray()))
{
IsVisibleInSidebar = true
});
}
UInt16 width, height;
if (reader.GetTagValue(ExifTags.PixelXDimension, out width) &&
reader.GetTagValue(ExifTags.PixelYDimension, out height))
{
string dimension = String.Format("{0} x {1}", width, height);
retList.Add(new Metadata(DisplayType.Text, MetadataStrings.strImage, MetadataStrings.strDimension,
dimension)
{
IsVisibleInSidebar = true
});
}
//foreach (var tag in RecognizedExifTags)
// addExifVal(reader, tag);
}
}
}
}
catch
{
return(AsyncUtils.RunSync(() => (new ImageMetadataProvider()
.GetMetadataAsync(selectedModels, modelCount, parentModel))));
}
}
return(retList);
}
