public void UnsetCursor()
{
_cursor = null;
}
//returns previously locked shape, caller should broadcast cursor free event if result != null
public void LockShape(IServerVdShape sh, int owner)
{
if (sh.GetCursor() != null)
throw new InvalidOperationException("cannot lock locked shape");
var cursor = new ServerCursor(owner);
sh.SetCursor(cursor);
_userIdToCursor.Add(owner, sh);
}
public void SetCursor(ServerCursor c)
{
_cursor = c;
}