public Bitmap GenerateBitmap(TileTreeNodeFiller filler)
{
if (_bitmap != null)
{
return(_bitmap);
}
if (_isFilling)
{
return(null); // This is a small window where a race could occur
}
_isFilling = true;
Task.Run(() =>
{
Console.WriteLine($"Filling {Address}");
if (File.Exists(Path))
{
SetBitmap((Bitmap)Image.FromFile(Path));
InvalidateMapView();
}
else if (Terrain != null)
{
var bitmap = filler.Fill(this);
bitmap.Save(Path, ImageFormat.Png);
SetBitmap(bitmap);
_isFilling = false;
InvalidateMapView();
}
});
return(null);
}
public static TileTree MakeTree(TileTreeNodeFiller filler, string cache_root)
{
var t = new TileTree {
Filler = filler, CacheRoot = cache_root
};
t.EnsureCacheDirectoryExists();
return(t);
}