public static ThumbnailInfo MakeThumbnail(Bitmap origin, ImageMeta meta, ExifOrientations orientation,
string attachmentId, Driver driver, string origFileName)
{
Bitmap thumbnail = null;
if (meta == ImageMeta.Square)
{
thumbnail = MakeSquareThumbnail(origin);
}
else
{
thumbnail = ImageHelper.ScaleBasedOnLongSide(origin, (int)meta);
}
try
{
if (orientation != ExifOrientations.Unknown)
{
ImageHelper.CorrectOrientation(orientation, thumbnail);
}
else
{
ImageHelper.CorrectOrientation(ImageHelper.ImageOrientation(origin), thumbnail);
}
}
catch (System.Runtime.InteropServices.ExternalException ex)
{
logger.ErrorFormat("Unable to correct orientation of image {0}", origFileName);
logger.Error("External exception", ex);
}
ImageSaveStrategy imageStrategy = GetImageSaveStrategy(Path.GetExtension(origFileName));
SavedResult savedThumbnail = imageStrategy.Save(thumbnail, attachmentId, meta, driver);
return(new ThumbnailInfo
{
saved_file_name = savedThumbnail.FileName,
file_name = origFileName,
width = thumbnail.Width,
height = thumbnail.Height,
file_size = savedThumbnail.SavedRawData.Length,
mime_type = savedThumbnail.MimeType,
modify_time = DateTime.UtcNow,
url = "/v2/attachments/view/?object_id=" + attachmentId +
"&image_meta=" + meta.ToString().ToLower(),
RawData = savedThumbnail.SavedRawData
});
}
public SavedResult Save(Bitmap img, string attchId, ImageMeta meta, Driver driver)
{
using (MemoryStream m = new MemoryStream())
{
img.Save(m, ImageFormat.Png);
SavedResult savedResult = new SavedResult
{
SavedRawData = m.ToArray(),
FileName = string.Format("{0}_{1}.png", attchId, meta.ToString().ToLower()),
MimeType = "image/png"
};
new FileStorage(driver).SaveFile(savedResult.FileName, new ArraySegment <byte>(savedResult.SavedRawData));
return(savedResult);
}
}
public SavedResult Save(Bitmap img, string attchId, ImageMeta meta, Driver driver)
{
using (MemoryStream m = new MemoryStream())
{
EncoderParameters encodeParams = new EncoderParameters(1);
encodeParams.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, (long)85);
img.Save(m, ImageHelper.JpegCodec, encodeParams);
SavedResult savedResult = new SavedResult
{
SavedRawData = m.ToArray(),
FileName = string.Format("{0}_{1}.jpeg", attchId, meta.ToString().ToLower()),
MimeType = "image/jpeg"
};
new FileStorage(driver).SaveFile(savedResult.FileName, new ArraySegment <byte>(savedResult.SavedRawData));
return(savedResult);
}
}
