protected void OnArrangeShapes(object sender, EventArgs e)
{
NodeShape shape = SingleSelection as NodeShape;
ArrangeShapesCommand command = new ArrangeShapesCommand(shape);
command.Exec();
}
protected void OnStatusArrangeShapes(object sender, EventArgs e)
{
NodeShape shape = SingleSelection as NodeShape;
ArrangeShapesCommand command = new ArrangeShapesCommand(shape);
MenuCommand cmd = sender as MenuCommand;
cmd.Enabled = cmd.Visible = command.Visible();
}
