[Freeciv-Dev] update on isometric scrolling (PR#1222)

[jdorje@xxxxxxxxxxxxxxxxxxxxx]

(This message really should be associated with the original thread. 
Forgive the repeated posting.  Apparently "(PR #1222)" isn't good 
enough; it takes "(PR#1222) to get the numbers to match.  Hmph.)
Vasco's proposed solution for handling isometric scrolling is by far the 
best.
If the mapview were aligned by pixel instead of by tile, then scrolling 
would just be a matter of moving the mapview position and recentering; 
everything should just work.
Unfortunately, I'm not willing to try to convert clients piecemeal, and 
there hasn't been much interest in a mapview GUI unification, so this is 
unlikely to happen soon.  This "bug" can probably be closed.
(OTOH, the scrolling is arguably the biggest problem with the isometric 
view, and this patch does fix it...so it might make sense to apply it as 
a temporary measure.  But this is unlikely to happen, I suppose.)
jason short