/// <summary>
/// Returns a thumbnail image at a maximum size. Only one size is provided as the thumbnail will be scaled down. If the thumbnail does not exist the thumbnail is created
/// </summary>
/// <param name="VirtualPath">The virtual path of the image</param>
/// <param name="MaximumSize">The maximum size for the image</param>
/// <returns>The image with the thumbnail contents</returns>
/// <remarks>
/// this is a virtual file and all actual file methods will not be available.
/// </remarks>
public override FileSystem.Image ImageThumbnail(string VirtualPath, int MaximumSize)
{
var file = GetFile(VirtualPath);
if (!file.IsImage)
{
return(null);
}
var db = new FileSystem.FileStoreDb(this.connectionString);
var image = file.AsImage;
var thumbnail = db.FileStoreFileThumbs.FirstOrDefault(x => x.FileId == Guid.Parse(image.Id));
if (thumbnail == null)
{
FileSystem.FileStoreFileThumb thumb = new FileSystem.FileStoreFileThumb()
{
contents = FileSystem.Image.ResizeImageThumbnail(MaximumSize, image.FileContents),
FileId = Guid.Parse(image.Id),
size = MaximumSize,
thumbnailId = Guid.NewGuid()
};
db.FileStoreFileThumbs.InsertOnSubmit(thumb);
db.SubmitChanges();
image.FileContents = thumb.contents.ToArray();
}
else
{
image.FileContents = thumbnail.contents.ToArray();
}
db.Dispose();
return(image);
}
/// <summary>
/// Returns a thumbnail image at a maximum size. Only one size is provided as the thumbnail will be scaled down. If the thumbnail does not exist the thumbnail is created
/// </summary>
/// <param name="VirtualPath">The virtual path of the image</param>
/// <param name="MaximumSize">The maximum size for the image</param>
/// <returns>The image with the thumbnail contents</returns>
/// <remarks>
/// this is a virtual file and all actual file methods will not be available.
/// </remarks>
public override FileSystem.Image ImageThumbnail(string VirtualPath, int MaximumSize)
{
var file = GetFile(VirtualPath);
if (!file.IsImage)
return null;
var db = new FileSystem.FileStoreDb(this.connectionString);
var image = file.AsImage;
var thumbnail = db.FileStoreFileThumbs.FirstOrDefault(x => x.FileId == Guid.Parse(image.Id));
if (thumbnail == null)
{
FileSystem.FileStoreFileThumb thumb = new FileSystem.FileStoreFileThumb()
{
contents = FileSystem.Image.ResizeImageThumbnail(MaximumSize, image.FileContents),
FileId = Guid.Parse(image.Id),
size = MaximumSize,
thumbnailId = Guid.NewGuid()
};
db.FileStoreFileThumbs.InsertOnSubmit(thumb);
db.SubmitChanges();
image.FileContents = thumb.contents.ToArray();
}
else
image.FileContents = thumbnail.contents.ToArray();
db.Dispose();
return image;
}
