private async Task <Thumbnail> LoadEmbeddedThumbnailAsyncImpl(
IEntity entity,
Size thumbnailAreaSize,
CancellationToken cancellationToken)
{
using (var image = await _imageLoader.LoadThumbnailAsync(entity, cancellationToken)
.ConfigureAwait(false))
{
// the entity does not have an embedded thumbnail
if (image == null)
{
return(new Thumbnail(null, Size.Empty));
}
cancellationToken.ThrowIfCancellationRequested();
// the entity does have an embedded thumbnail
using (var thumbnail = _thumbnailGenerator.GetThumbnail(image, thumbnailAreaSize))
{
var imageSize = new Size(image.Width, image.Height);
return(new Thumbnail(thumbnail.ToBitmap(), imageSize));
}
}
}
