/// <summary>
/// generates a thumbnail given the path of the original images
/// </summary>
/// <param name="filePath"></param>
/// <param name="suffix"></param>
/// <param name="desiredWidth"></param>
/// <param name="desiredHeight"></param>
/// <returns></returns>
private static string thumbnail(string filePath, string suffix, float desiredWidth, float desiredHeight, Imgsize type)
{
string thumb = filePath;
string file = filePath;
string ext = thumb.Substring(thumb.LastIndexOf(".") + 1);
thumb = thumb.Substring(0, thumb.LastIndexOf(".")) + "_" + suffix + "." + ext;
#if AZURE
file = file.Substring(file.LastIndexOf("/") + 1);
thumb = thumb.Substring(thumb.LastIndexOf("/") + 1);
bool exists = photoContainer.DoesBlobItemExists(file);
#else
bool exists = File.Exists(GeneralConstants.APP_ROOT_DIR + file);
#endif
if (!exists)
{
// delete from db
new Thread(() =>
{
Syslog.Write(String.Concat("Cannot find file: ", GeneralConstants.APP_ROOT_DIR + file));
using (var db = new tradelrDataContext())
{
var repository = new TradelrRepository(db);
repository.SetIsolationToNoLock();
repository.DeleteImage(file);
}
}).Start();
return("");
}
// These are the ratio calculations
#if AZURE
Image img = Image.FromStream(photoContainer.GetBlobContentStream(file));
#else
Image img = Image.FromFile(GeneralConstants.APP_ROOT_DIR + file);
#endif
int width = img.Width;
int height = img.Height;
img.Dispose();
float factor = 0;
if (width > 0 && height > 0)
{
float wfactor = desiredWidth / width;
float hfactor = desiredHeight / height;
factor = wfactor < hfactor ? wfactor : hfactor;
}
if (factor > 0)
{
int twidth = Convert.ToInt32(Math.Floor(factor * width));
int theight = Convert.ToInt32(Math.Floor(factor * height));
convert(file, thumb, twidth, theight, type);
}
else
{
#if AZURE
photoContainer.DeleteBlobItem(thumb);
photoContainer.CopyContent(file, thumb);
#else
if (File.Exists(GeneralConstants.APP_ROOT_DIR + thumb))
{
File.Delete(GeneralConstants.APP_ROOT_DIR + thumb);
}
File.Copy(GeneralConstants.APP_ROOT_DIR + file, GeneralConstants.APP_ROOT_DIR + thumb);
#endif
}
return(thumb);
}