void DrawNewNode(Point point)
{
MainGraph.AddNewNode(new Point(point.X, point.Y));
g.DrawEllipse(MainPan, point.X, point.Y, DrawSizeNode, DrawSizeNode);
g.DrawString(MainGraph.GetLastNode().GetName(), MainFont, MainBrush, point.X + TextPos, point.Y + TextPos);
}