[evince] translating event->x and event->y into dvi->pos.hh and dvi->pos.vv coords

[Mike Marchywka <marchywka hotmail com>]

I went ahead with the plan I outlined earlier and it seems to
run- I can make text visible or invisible as desired by using 
dvi specials. I added one cpp file that registers a special from a global
variable during ctor execution and a few header files including a "c" file
included in an exsting "c" file to avoid adding to project :) To avoid
dealing with interface between ev-view and dviread, I send mouse coords
out to datagram and requests back to reload the page with new parameters.
It more or less works, blocks come and go, except that the thing I point
at is not what gets modified. I'm trying to compare
event->x + view->scroll_x to dvi->pos.hh and there is maybe an offset or
offset and scale issue. Where is an example of the right conversion?

The datagram thing sounds dumb but it does create flexibility and avoids
having the deal with interfaces right now. I can even pass pointers
back and forth. 

Thanks.

-- 

mike marchywka
306 charles cox
canton GA 30115
USA, Earth 
marchywka hotmail com
404-788-1216
ORCID: 0000-0001-9237-455X