public static ImageLoader GetUserIcon (string email, int size, Xwt.Screen screen = null)
{
if (screen == null) {
screen = Xwt.Desktop.PrimaryScreen;
}
//only support integer scaling for now
var scaleFactor = (int) screen.ScaleFactor;
size = size * scaleFactor;
var hash = GetMD5Hash (email);
string key = hash + "@" + size + "x" + size;
if (scaleFactor != 1) {
key += "x" + scaleFactor;
}
ImageLoader loader;
if (!gravatars.TryGetValue (key, out loader) || (!loader.Downloading && loader.Image == null)) {
var cacheFile = UserProfile.Current.TempDir.Combine ("Gravatars", key);
string url = "https://www.gravatar.com/avatar/" + hash + "?d=404&s=" + size;
gravatars[key] = loader = new ImageLoader (cacheFile, url, scaleFactor);
}
return loader;
}
public static ImageLoader GetUserIcon (string email, int size)
{
string key = email + size;
ImageLoader img;
if (!userIcons.TryGetValue (key, out img)) {
var md5 = System.Security.Cryptography.MD5.Create ();
byte[] hash = md5.ComputeHash (Encoding.UTF8.GetBytes (email.Trim ().ToLower ()));
StringBuilder sb = new StringBuilder ();
foreach (byte b in hash)
sb.Append (b.ToString ("x2"));
string url = "http://www.gravatar.com/avatar/" + sb.ToString () + "?d=mm&s=" + size;
userIcons [key] = img = new ImageLoader (url);
}
return img;
}
