public TransformStack TrimTop()
{
if (StackIndex == 0)
{
return(this);
}
return(new TransformStack(RowTransforms.Skip(StackIndex), 0));
}
public TransformStack PushTransform(IRowTransform rowTransform)
{
return(new TransformStack(new [] { rowTransform }.Concat(RowTransforms.Skip(StackIndex))
.Where(transform => !transform.IsEmpty), 0));
}