- From: Jason White <jasonw@ariel.ucs.unimelb.EDU.AU>
- Date: Tue, 16 Sep 1997 13:56:16 +1000 (AEST)
- To: Murray Maloney <murray@maloney.mail.net>
- cc: WAI Working Group <w3c-wai-wg@w3.org>
Murray, Thank you for your input. The issue is not whether a user agent will need to determine the dimensions of a pre-formatted braille file. As you rightly point out, braille documents are dynamically laid out by the translation and formatting software. Rather, the link to which I am referring is the link to a style sheet. My question is whether, given that Braille CSS has not yet been developed, and that in any case the provisions for style sheets in HTML are not meant to reflect the requirements of any particular style language, style sheets will be dependent on the dimensions of the braille output. If so, then it would be necessary for the user agent to be able to select styles on the basis of these dimensions, so that a style sheet which is designed for a line length of 40 cells will not be applied when the output device can produce only, for example, 32 cells per line. The question is whether style sheets will or will not be independent of page dimensions. The more that absolute horizontal and vertical locations need to be used in defining style properties, the more dependent style sheets will be on the dimensions of the output device. Thus, we need to make a decision, prior to having worked out the details of Braille CSS, and taking into account other style systems such as DSSSL, whether we need the line length and page depth parameters as part of the media type.
Received on Monday, 15 September 1997 23:57:46 UTC