public static List <ThumbnailItem> SaveThumbnails(UserPhotoThumbnailSettings thumbnailSettings, Guid userId)
{
if (thumbnailSettings.Size.IsEmpty)
{
return(null);
}
var thumbnailsData = new ThumbnailsData(userId);
var resultBitmaps = new List <ThumbnailItem>();
var img = thumbnailsData.MainImgBitmap;
if (img == null)
{
return(null);
}
foreach (var thumbnail in thumbnailsData.ThumbnailList)
{
thumbnail.Bitmap = GetBitmap(img, thumbnail.Size, thumbnailSettings);
resultBitmaps.Add(thumbnail);
}
thumbnailsData.Save(resultBitmaps);
thumbnailSettings.SaveForUser(userId);
return(thumbnailsData.ThumbnailList);
}
public static Bitmap GetBitmap(Image mainImg, Size size, UserPhotoThumbnailSettings thumbnailSettings)
{
var thumbnailBitmap = new Bitmap(size.Width, size.Height);
var scaleX = size.Width / (1.0 * thumbnailSettings.Size.Width);
var scaleY = size.Height / (1.0 * thumbnailSettings.Size.Height);
var rect = new Rectangle(-(int)(scaleX * (1.0 * thumbnailSettings.Point.X)),
-(int)(scaleY * (1.0 * thumbnailSettings.Point.Y)),
(int)(scaleX * mainImg.Width),
(int)(scaleY * mainImg.Height));
using (var graphic = Graphics.FromImage(thumbnailBitmap))
{
graphic.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
graphic.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.HighQuality;
graphic.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
graphic.DrawImage(mainImg, rect);
using var wrapMode = new System.Drawing.Imaging.ImageAttributes();
wrapMode.SetWrapMode(System.Drawing.Drawing2D.WrapMode.TileFlipXY);
graphic.DrawImage(mainImg, rect, 0, 0, mainImg.Width, mainImg.Height, GraphicsUnit.Pixel, wrapMode);
}
return(thumbnailBitmap);
}
public ResizeWorkerItem(Guid userId, byte[] data, long maxFileSize, Size size, IDataStore dataStore, UserPhotoThumbnailSettings settings)
{
UserId = userId;
Data = data;
MaxFileSize = maxFileSize;
Size = size;
DataStore = dataStore;
Settings = settings;
}
public ResizeWorkerItem(int tenantId, Guid userId, byte[] data, long maxFileSize, Size size, IDataStore dataStore, UserPhotoThumbnailSettings settings)
{
_tenantId = tenantId;
_userId = userId;
_data = data;
_maxFileSize = maxFileSize;
_size = size;
_dataStore = dataStore;
_settings = settings;
}
private static void SetUserPhotoThumbnailSettings(Guid userId, int width, int height)
{
var settings = UserPhotoThumbnailSettings.LoadForUser(userId);
if (!settings.IsDefault)
{
return;
}
var max = Math.Max(Math.Max(width, height), SmallFotoSize.Width);
var min = Math.Max(Math.Min(width, height), SmallFotoSize.Width);
var pos = (max - min) / 2;
settings = new UserPhotoThumbnailSettings(
width >= height ? new Point(pos, 0) : new Point(0, pos),
new Size(min, min));
settings.SaveForUser(userId);
}
private static string SizePhoto(Guid userID, byte[] data, long maxFileSize, Size size, bool now)
{
if (data == null || data.Length <= 0)
{
throw new UnknownImageFormatException();
}
if (maxFileSize != -1 && data.Length > maxFileSize)
{
throw new ImageWeightLimitException();
}
var resizeTask = new ResizeWorkerItem(userID, data, maxFileSize, size, GetDataStore(), UserPhotoThumbnailSettings.LoadForUser(userID));
if (now)
{
//Resize synchronously
ResizeImage(resizeTask);
return(GetSizedPhotoAbsoluteWebPath(userID, size));
}
else
{
if (!ResizeQueue.GetItems().Contains(resizeTask))
{
//Add
ResizeQueue.Add(resizeTask);
if (!ResizeQueue.IsStarted)
{
ResizeQueue.Start(ResizeImage);
}
}
return(GetDefaultPhotoAbsoluteWebPath(size));
//NOTE: return default photo here. Since task will update cache
}
}
public static void ResetThumbnailSettings(Guid userId)
{
var thumbSettings = new UserPhotoThumbnailSettings().GetDefault() as UserPhotoThumbnailSettings;
thumbSettings.SaveForUser(userId);
}