From: David Tolpin (dvd@renderx.com)
Date: Fri Nov 01 2002 - 19:19:02 PST
>
> space-before="0"
> block-before-width="2pt"
> padding-start="4pt"
>
> we should get this layout:
>
> Start edge of reference
> area's content rectangle
> :
> : Start edge of padding rectangle
> V :
> .------ :
> |.--. V
> ||xx| .---------
> ||xx| |
> ^ ^ |
> : :
> : Block's start-border end edge
> :
> Block's
> start-border
> start edge
>
> However, what I'm seeing is that the start edge of the inner block's
> content rectangle is adjacent to the start edge of the containing
> reference area's content rectangle, putting the start border and padding
> to the left (toward the start edge of the page) of the reference area's
> content rectangle, that is, on the start side of the containing
> reference area's content rectangle.
>
> Is the behavior I'm observing correct and, if so, why, given the
> referenced diagram?
>
Eliot,
Yes, the behavior you are observing with RenderX XEP (and, I hope,
with XSL Formatter which I didn't try recently since it runs under Windows
only but I know that our implementations are consistent in this respect)
is correct.
It is correct because start/end-indent are 0 by default; margins are derived
values and are set so that margin+border+padding=indent holds true.
To get stacking block as in your diagram, you either have to specify
margin="0pt" explicitly, which is not a good idea since there are no
'logical' margin properties (NO margin-before/after/start/end); or
calculate indents as sums of border+padding.
This may seem non-intuitive at a first glance, but in fact this is
a very consistent approach.
David Tolpin
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