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. > > 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
