Christophe Rhodes csr21@cam.ac.uk writes:
Find attached a preliminary patch to deal with the fact that, in general, glyphs from fonts are not constrained to draw only to the right of the cursor position.
A revised patch is attached, which is still not commit-worthy but fixes the opposite-problem as well: glyphs which draw beyond their advance width. (Thanks to Dave Murray aka JQS for testing).
The current plan is for us here at Goldsmiths to perform a little more testing and extend it to the PostScript backend. I suppose that the logical thing to do is to call TEXT-BOUNDING-RECTANGLE* a backend function and require backends to implement it for their backend-medium.
This imposes a maintenance burden on those interested in the OpenGL and beagle backends, but I hope not a terrible one. I note, from the screenshot at http://www.bloodandcoffee.net/campbell/climacs-beagle-porn.png for example, that there seem to be similar redraw artifacts in the beagle backend in any case, so it could well be that an implementation of text-bounding-rectangle* there clears those up. (Is anyone out there using the OpenGL backend?)
Cheers,
Christophe