On second thought, Jeremias, instead of arguing this,
why don't we just compromise at 75pt. margins?  ;)

Glen

--- Glen Mazza <[EMAIL PROTECTED]> wrote:

> --- Jeremias Maerki <[EMAIL PROTECTED]>
> wrote:
> 
> > Hi Luca,
> > 
> > the reason for the effect you're seeing is the
> > inheritance of
> > start-indent and end-indent. In your exapmle, if
> you
> > specify a
> > margin-left and margin-right on the
> > simple-page-master, 
> 
> (margin-left and margin-right of 50pt each on
> fo:s-p-m)
> 
> > this results
> > (corresponding properties) in a start-indent and
> > end-indent of 50pt each.
> 
> via the second set of formulas, because margins are
> explicitly specified and fo:s-p-m does not generate
> any area and hence does not generate a reference
> area
> (although it is used by fo:page-sequence to do so):
> I
> agree here.
> 
> 
> > Now, because start|end-indent are inherited,
> > region-body also starts
> > with a start-indent and end-indent of 50pt which
> 
> I agree, but these properties are not explicitly
> specified on fo:region-body, so the first two sets
> of
> formulae are not relevant here.  Nor would they be
> anyway because I don't believe fo:region-bodies
> generate reference areas.
> 
> 
> > together with the
> > parent's start-indent accumulates 100pt because
> each
> > of the FOs are
> > generating a reference area. 
> 
> I don't think so here--I don't believe either
> fo:s-p-m
> or fo:region-body generate reference areas--indeed,
> I
> don't think anything located outside of
> fo:page-sequence does.  The spec says they are
> *used*
> to create a reference area, but they don't generate
> one themselves.  So maybe your calculations here may
> need changing--because different formulae in 5.3.2
> would hence be activated.
> 
> Section 6.1 [1] says "There are three kinds of
> formatting objects: (1) those that generate areas,
> (2)
> those that return areas, but do not generate them,
> and
> (3) those that are used in the generation of areas."
> 
> fo:s-p-m and fo:region-body are type (3), not type
> (1).
> 
> fo:s-p-m text:  The fo:simple-page-master formatting
> object generates no area directly. It is used in the
> generation of pages by an fo:page-sequence. type (3)
> 
> fo:r-b text:  The fo:region-body formatting object
> is
> used to generate one region-viewport-area and one
> region-reference-area whenever an
> fo:simple-page-master that has an fo:region-body as
> a
> child is used to generate a page.  (i.e., type 3)
> 
> 
> [1]
>
http://www.w3.org/TR/2001/REC-xsl-20011015/slice6.html#fo-section
> 
> 
> > So in your case you could specify
> > a margin="0pt" on
> > the region-body which triggers the first formula
> > given in 5.3.2. 
> 
> Again, I don't think so because fo:region-body never
> generates a reference-area.  Hence, with no explicit
> specification of margin properites, the third set of
> formulas then activates:
> 
> margin-corresponding = start-indent -
> inherited_value_of(start-indent) -
> padding-corresponding - border-corresponding-width
> 
> with the additional rule that:  "If the
> "start-indent"
> or "end-indent" properties are not specified their
> inherited value is used in these formulae."
> 
> Since start-indent and end-indent were not
> specified,
> then we have:
> 
> margin-corresponding =
> inherited_value_of(start-indent) -
> inherited_value_of(start-indent) -
> padding-corresponding - border-corresponding-width,
> 
> or zero for the margin properties on fo:region-body.
> 
> (i.e., we just rely on the 50pt. on
> simple-page-master.)
> 
> So Luca is correct that both fo:simple-page-masters
> should generate the same overall margins of 50 pt.
> each, no?
> 
> Thanks,
> Glen
> 
> 

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