- From: Thomas Phinney <tphinney@cal.berkeley.edu>
- Date: Wed, 31 Mar 2010 21:20:55 -0700
- To: "www-style@w3.org" <www-style@w3.org>
- Message-ID: <g2jf49ae6ac1003312120rbf20d45y65ceb6d81e63e5a4@mail.gmail.com>
Steve's proposal seems sound. But I don't think his names are much better than the original: those names tell me even less about what the feature might do, and like the original name could apply to any feature. Maybe "glyph-position" or perhaps "text-position"? On Wed, Mar 31, 2010 at 6:36 PM, Stephen Zilles <szilles@adobe.com> wrote: > John, > > Per my action item from the CSS F2F meeting, I suggest the following > change to text of 6.2 > > The current description (March 26) is: > 6.2 Positional character forms: the character-transform<http://dev.w3.org/csswg/css3-fonts/#propdef-character-transform>property > > Name: > > character-transform > > Value: > > normal | subscript | superscript | ordinal > > Initial: > > normal > > Applies to: > > all elements > > Inherited: > > yes > > Percentages: > > N/A > > Media: > > visual > > Computed value: > > as specified > > The values ‘subscript’, ‘superscript’ and ‘ordinal’ imply the appropriate > variant glyph is displayed when available in the font (OpenType features: subs, > supr, ordn). When a variant glyph is not available, a simulated version is > synthesized using a reduced form of the default glyph. Normal implies use of > the default glyph at normal size. When the value is anything other than ‘ > normal’, the font-size and vertical-align properties are set to ‘inherit’. > > Description I would change the semantic paragraph to read as follows: > > The values ‘subscript’, ‘superscript’ and ‘ordinal’ imply the appropriate > variant glyph is displayed when available in the font (OpenType features: subs, > supr, ordn). These variant glyphs are displayed using the font-size and > vertical-align properties of the parent of the element to which > ‘character-transform’ applies. When a variant glyph is not available, the > font-size and vertical-align properties on the affected element are used to > scale and position the normal glyph for the given code point. The value ‘ > normal’ always displays the normal glyph for each code point at the > content of that element. using the font-size and vertical-align properties > on that element. > > This approach does not require making character-transform into something > like a shorthand, but not quite. It also allows the font-size and > verticial-align values to be propogated to nested super-(or sub-)scripts so > that they decrease in size and stack correctly. It also means that the > behavior of current content (under the ‘normal’ value) does not change and > that things like images in the content of the element affected by > character-transform are made to appear as super-(or sub-)scripts although > they may not line up with the other glyphs unless they are sized > appropriately. > > > > Finally, I am not entirely happy with the name “character-transform”. It is > not the character that is transformed; if anything is transformed it is the > glyph. How about names like, ‘use-font-feature’ or ‘use-font’ or > ‘use-feature’? > > > > Steve Zilles > > > -- "The rat's perturbed; it must sense nanobots! Code grey! We have a Helvetica scenario!" — http://xkcd.com/683/
Received on Thursday, 1 April 2010 04:21:28 UTC