Re: [docbook-apps] Padding on admonitions (fo stylesheets)

["Bob Stayton" <bobs@sagehill.net>]

Hi Dick,
I have run across this problem too, and so I finally looked it up.  It seems this is a 
feature of the XSL-FO specification.  In section 5.3.2 "Margin, Space, and Indent 
Properties" in the chapter titled "Property Refinement / Resolution", I find this 
statement:

If the corresponding absolute margin property is not explicitly specified, or if the 
corresponding relative

property is specified on the formatting object and the absolute property only 
specified by the expansion

of a shorthand, the corresponding absolute margin property is calculated according to 
the following

formulae:

margin-corresponding = start-indent - inherited_value_of(start-indent)

- padding-corresponding - border-corresponding-width

In other words, if you do not specify a margin property for a block with padding, it 
assumes you want the text aligned with the text above it and so reduces that margin to 
provide space for the border and padding so the text still lines up.  Adding the 
margin property is the right solution when you want the box to line up and the text to 
be padded inside the box.

Bob Stayton
Sagehill Enterprises
bobs@sagehill.net


----- Original Message ----- 
From: "Richard Hamilton" <hamilton@xmlpress.net>
To: "docbook-apps mailing list" <docbook-apps@lists.oasis-open.org>
Sent: Thursday, May 10, 2012 6:23 PM
Subject: [docbook-apps] Padding on admonitions (fo stylesheets)


I just ran into something curious with the 1.76.1 ns stylesheets (also using RenderX).

I'm trying to create an admonition style that has a shaded background with the text 
inside surrounded by 8pts of padding.

To do that, I did nothing to any of the xsl, I just set padding="8pts" and 
background-color="#E0E0E0" in the admonition.properties attribute set.

That works, but the outside bounds of the admonition now extend 8pts beyond the 
outside margin. If I set the padding to 0pts, the text stays the same, but the 
background shrinks to the size of the text.

I thought padding was defined as it is for table cells, that is the space between the 
boundary of the box and the contents. I would expect, of course, that this would 
potentially cause the box to expand vertically (at least in western text), but not 
horizontally, and not outside the text margin.

Am I misinterpreting the meaning of padding, or is there a potential bug here?

BTW, I "fixed" the problem by setting margin="0pts" but that seems to be somehow 
wrong:-).

Can anyone shed any light on this?

Thanks,
Dick Hamilton
-------
XML Press
XML for Technical Communicators
http://xmlpress.net
hamilton@xmlpress.net




---------------------------------------------------------------------
To unsubscribe, e-mail: docbook-apps-unsubscribe@lists.oasis-open.org
For additional commands, e-mail: docbook-apps-help@lists.oasis-open.org