Re: Percentages on region margins
(Just to be clear, you mean reference-orientation on simple-page-master, right? Not region-body.) Good question. I can't find any special reference to this case in the spec. I guess we need to go with the end-user expectation which I imagine would be that you compensate for the the rotation. But maybe I miss something. On 31.08.2005 03:35:43 Manuel Mall wrote: snip/ Further to this - what is the expectation if we change the reference orientation by 90 degrees (whichever way)? Now margin-top and bottom are along the sides and margin-before and after are across (Look at the picture in section 6.4.12 under Constraints applicable to regions of the spec if you don't quite understand what I am talking about. ). Shall we still resolve a percentage on a margin-top/bottom against the page-height? Looks awkward to me but couldn't find (that doesn't mean there is none) an answer in the spec. snip/ Jeremias Maerki
Re: Percentages on region margins
On Mon, 29 Aug 2005 11:31 pm, Manuel Mall wrote: 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. Further to this - what is the expectation if we change the reference orientation by 90 degrees (whichever way)? Now margin-top and bottom are along the sides and margin-before and after are across (Look at the picture in section 6.4.12 under Constraints applicable to regions of the spec if you don't quite understand what I am talking about. ). Shall we still resolve a percentage on a margin-top/bottom against the page-height? Looks awkward to me but couldn't find (that doesn't mean there is none) an answer in the spec. 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 Manuel
Re: Percentages on region margins
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. 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
Re: Percentages on region margins
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
