bug 548 graphics '*' (PR#549)
A little more followup. The gtk() device uses gdk_string_width to find the character extents. That seems undocumented anywhere in the gtk+ sources. It is returning the maximal descent for the font for all input strings on my system. Looking at the current gtk+-1.2.7 sources it appears to call XTextExtents, and that _should_ give the string descent. Since gdk fonts are private opaque structures I see no way around this. Without any documentation I do not even know if it is a gdk bug (although I suspect it is or was). The gdk docs in gtk+ seem seriously incomplete.
Brian D. Ripley, ripley@stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272860 (secr) Oxford OX1 3TG, UK Fax: +44 1865 272595 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-devel mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-devel-request@stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._