On Mon, 29 Aug 2005 11:28 pm, Jeremias Maerki wrote: > On 29.08.2005 17:18:18 Manuel Mall wrote: > > On Mon, 29 Aug 2005 08:20 pm, Jeremias Maerki wrote: > > > You probably missed the following: > > > > > > 7.10.1 "margin-top" says for percentages: > > > > The percentage is calculated with respect to the width of the > > > > generated box's containing block. This is true for 'margin-top' > > > > and 'margin-bottom', except in the page context, where > > > > percentages refer to page box height. > > > > Thanks for pointing this out - don't you love this spec -:). > > However, that's for a margin specified on a page-master. My > > uncertainty is with a margin specified on a region-body unless you > > interpret the term "page context" as meaning page-master and its > > subordinate elements in which case margins on regions would be > > resolved relative to the > > page-width/height. > > I agree that this may not be 100% clear but I believe this applies to > the simple-page-master's immediate children, too. I mean we're > outside of the normal block-level stuff and inside the page > declaration. It would really be weird to base these values on > anything else than the page extents. >
Yes I agree (with the weird bit), that's why I ask the question. So I will resolve relative to the page width/height. > > > On 29.08.2005 13:18:59 Manuel Mall wrote: > > > > I am trying to figure out on which base value to apply the > > > > margin="5%" on the <fo:region-body> (see fragment below): > > > > > > > > <fo:simple-page-master master-name="normal" > > > > page-width="5in" page-height="5in" margin="5%"> > > > > <fo:region-body margin="5%" /> > > > > <fo:region-before extent="5%" /> > > > > ... > > > > > > > > The margin in the page-master element is obviously based on the > > > > page-width as there is no further containing block. The > > > > percentage on the extend="5%" in the <fo:region-before> is also > > > > relative to the page-width as the spec says so: "refer to the > > > > corresponding width of the page-viewport-area". This leaves the > > > > margin on the region-body. My interpretation is that the > > > > containing block / ancestor area of the region-body is the > > > > page-reference-area. Its content rectangle would in this case > > > > have the width (5in - 2*(5in * 0.05)). If my interpretation is > > > > correct it would mean that in the above example the margins on > > > > the region-body would be smaller than the extend on the > > > > region-before (=> not nice). I am concerned because it seems to > > > > be somewhat inconsistent that the percentage on extent in a > > > > region-before is evaluated against a different base than the > > > > percentage on a margin in a region-body. > > > > > > > > I would appreciate if others could cross-check if my > > > > interpretation seems ok or not. > > > > > > > > Thanks > > > > > > > > Manuel > > > > > > Jeremias Maerki > > > > Manuel > > Jeremias Maerki Manuel
