On 13.04.2004 14:47:02 Peter B. West wrote: > Fop-dev font-devs, > > My reading of the Javadocs for both 1.4.2 and 1.3.1 has turned up some > interesting questions. Since 1.3.1 (at least), java.awt.Font has > defined constants for CENTER_BASELINE, HANGING_BASELINE and > ROMAN_BASELINE. These correspond to the Central, Hanging and Alphabetic > baselines of the Rec at 7.8.1 Fonts and Font Data, which includes: > <quote> > XSL assumes that the font tables will provide at least three font > characteristics: an ascent, a descent and a set of baseline-tables. > </quote> > > The Rec actually aligns ideographic text on the Ideographic baseline, > but this seems to have a fixed relationship to the Central. > > Does the baseline discussion in the Rec have any echo in FOP? Are > baseline tables implemented?
No idea and I don't think so. Up to date we are lucky to have non-ISO-8859-1 characters display at all. I think Keiron started working on BIDI, and Karen had quite some knowledge, too. But I don't think it got any farther than that. We've got the ascender, the descender, the X/Cap-height and that's the three values that determine the placement of characters right now. See FontMetrics.java. > Mind you, I don't yet know whether the baseline constants from Java are > actually used anywhere. Neither do I, but trusting Eclipse's reference search, the answer is: no, they aren't in use, not even in JDK 1.4. Sorry for being of no use here. Jeremias Maerki
