public ImageSize Resize(ImageSize originalSize, ImageSize targetSize)
{
var aspectRatio = (float)originalSize.Width / (float)originalSize.Height;
var width = targetSize.Width;
var height = targetSize.Height;
if (originalSize.Width > targetSize.Width || originalSize.Height > targetSize.Height)
{
if (aspectRatio > 1)
{
height = (int)(targetSize.Height / aspectRatio);
}
else
{
width = (int)(targetSize.Width * aspectRatio);
}
}
else
{
width = originalSize.Width;
height = originalSize.Height;
}
return new ImageSize
{
Width = Math.Max(width, 1),
Height = Math.Max(height, 1)
};
}
public byte[] Create(Stream source, ImageSize desiredSize, string contentType)
{
using (var image = Image.FromStream(source))
{
var originalSize = new ImageSize
{
Height = image.Height,
Width = image.Width
};
var size = resizer.Resize(originalSize, desiredSize);
using (var thumbnail = new Bitmap(size.Width, size.Height))
{
ScaleImage(image, thumbnail);
using (var memoryStream = new MemoryStream())
{
thumbnail.Save(memoryStream, ImageFormats[contentType]);
return memoryStream.ToArray();
}
}
}
}
/// <summary>
/// Retourne la miniature d'une image stockée dans la BDD sous forme de média
/// </summary>
/// <param name="path">L'identifiant du média</param>
/// <returns>Instance d'un FileContentResult contenant la miniature</returns>
public ActionResult Thumbnail(string path)
{
Guid l_mediaId = new Guid(path);
Media l_media = Media.LoadById(l_mediaId);
FileContentResult l_fileContentResult;
IThumbnailCreator l_thumbnailCreator = DI.Current.Resolve<IThumbnailCreator>();
using (Stream l_stream = l_media.Fichier.GetInputStream())
{
ImageSize l_imageSize = new ImageSize();
l_imageSize.Width = 80;
l_imageSize.Height = 80;
ImageSize imageSize1 = l_imageSize;
l_fileContentResult = base.File(l_thumbnailCreator.Create(l_stream, l_imageSize, l_media.Fichier.ContentType), l_media.Fichier.ContentType);
}
return l_fileContentResult;
}
public ActionResult Thumbnail(string path)
{
//TODO:Add security checks
var files = new FilesRepository();
var image = files.ImageByPath(path);
if (image != null)
{
var desiredSize = new ImageSize { Width = ThumbnailWidth, Height = ThumbnailHeight };
const string contentType = "image/png";
var thumbnailCreator = new ThumbnailCreator(new FitImageResizer());
using (var stream = new MemoryStream(image.Image1.ToArray()))
{
return File(thumbnailCreator.Create(stream, desiredSize, contentType), contentType);
}
}
throw new HttpException(404, "File Not Found");
}
private FileContentResult CreateThumbnail(string physicalPath)
{
using (var fileStream = System.IO.File.OpenRead(physicalPath))
{
var desiredSize = new ImageSize
{
Width = ThumbnailWidth,
Height = ThumbnailHeight
};
const string contentType = "image/png";
return File(thumbnailCreator.Create(fileStream, desiredSize, contentType), contentType);
}
}
