private Photo ApplyWaterMark(Photo photo, string waterMarkText)
{
using (MemoryStream memoryStream = new MemoryStream())
{
memoryStream.Write(photo.Data, 0, photo.Data.Length);
memoryStream.Position = 0;
Bitmap sourceImage = (Bitmap)Image.FromStream(memoryStream);
using (Font font = new Font("Arial", 14, FontStyle.Bold))
{
using (Graphics destination = Graphics.FromImage(sourceImage))
{
float width = sourceImage.Width / 2f;
float height = sourceImage.Height / 2f;
destination.TranslateTransform(width, height);
destination.RotateTransform(45);
SizeF size = destination.MeasureString(waterMarkText, font);
PointF drawPoint = new PointF(-size.Width / 2f, -size.Height / 2f);
destination.DrawString(waterMarkText, font, Brushes.LawnGreen, drawPoint);
}
}
using (MemoryStream waterMarkedMemoryStream = new MemoryStream())
{
sourceImage.Save(waterMarkedMemoryStream, sourceImage.RawFormat);
if (photo.WaterMarked == null)
{
photo.WaterMarked = new File();
}
photo.WaterMarked.ContentContentType = photo.ContentContentType;
photo.WaterMarked.Data = waterMarkedMemoryStream.ToArray();
photo.WaterMarked.FileName = photo.FileName;
}
}
_photosRepository.Update(photo);
return(photo);
}
public async Task SetMain(int userId, int photoId)
{
var user = await _usersRepo.Get(userId);
var photo = user.Photos.FirstOrDefault(p => p.Id == photoId);
if (photo == null)
{
throw new RestException(HttpStatusCode.NotFound, new { Photo = "Not found" });
}
if (photo.IsMain)
{
throw new RestException(HttpStatusCode.BadRequest, new { Photo = "Photo is already main" });
}
var mainPhoto = user.Photos.FirstOrDefault(p => p.IsMain);
mainPhoto.IsMain = false;
photo.IsMain = true;
await _repo.Update(mainPhoto);
await _repo.Update(photo);
}
public async Task Update(PhotoView photoView)
{
var photo = _mapper.Map <Photo>(photoView);
var photoDB = await _photosRepository.GetById(photo.Id);
if (photoDB == null)
{
throw new ArgumentException("Photo not found");
}
if (photoDB.UserId != photo.UserId)
{
throw new ArgumentException("Photo doesn't belong to user");
}
photoDB.Description = photo.Description;
await Task.WhenAll(_photosRepository.Update(photoDB),
_hashtagsService.AddNewHashtags(photoDB.Id, photoDB.Description));
}
public void Update(Photo photo)
{
_repository.Update(photo);
}
