public Image GetImageFromCache(GMapType type, Point pos, int zoom, string language)
{
Image ret = null;
try
{
StringBuilder dir = new StringBuilder(tileCache);
dir.AppendFormat("{0}{1}{2}{3}{4}{5}{6}{7}", zoom, Path.DirectorySeparatorChar, language, Path.DirectorySeparatorChar, pos.X, Path.DirectorySeparatorChar, pos.Y, Path.DirectorySeparatorChar);
{
dir.AppendFormat("{0}.png", type.ToString());
}
if(File.Exists(dir.ToString()))
{
FileInfo f = new FileInfo(dir.ToString());
if(f.Length == 0)
{
f.Delete();
}
else
{
using(FileStream s = f.Open(FileMode.Open, FileAccess.Read, FileShare.Read))
{
ret = Image.FromStream(s);
s.Close();
}
}
}
}
catch
{
ret = null;
}
return ret;
}
public void CacheImage(Image tile, GMapType type, Point pos, int zoom, string language)
{
try
{
using(tile)
{
StringBuilder dir = new StringBuilder(tileCache);
dir.AppendFormat("{0}{1}{2}{3}{4}{5}{6}{7}", zoom, Path.DirectorySeparatorChar, language, Path.DirectorySeparatorChar, pos.X, Path.DirectorySeparatorChar, pos.Y, Path.DirectorySeparatorChar);
string d = dir.ToString();
// precrete dir
if(!Directory.Exists(d))
{
Directory.CreateDirectory(d);
}
// save
{
dir.AppendFormat("{0}.png", type.ToString());
using(FileStream s = File.Open(dir.ToString(), FileMode.Create, FileAccess.Write, FileShare.None))
{
tile.Save(s, System.Drawing.Imaging.ImageFormat.Png);
s.Flush();
s.Close();
}
// remove crap
FileInfo f = new FileInfo(dir.ToString());
if(f.Length == 0)
{
File.Delete(dir.ToString());
}
}
}
}
catch
{
}
}