There was a problem in extended some years ago when tcl/tk 8.5 broke a lot of font stuff by trying to do too much automatically, which caused some cross-platform trouble. I ended up having to make a wrapper for linux that momentarily changed the screen DPI, since 8.5 would use that to size fonts, and would get it wrong. I have no clue what happens now, but maybe this will be helpful:
http://markmail.org/message/ssygglbvuz6mdkjz On Sat, Oct 3, 2015 at 12:20 PM, Jonathan Wilkes via Pd-list < pd-list@lists.iem.at> wrote: > > This becomes more than an aesthetic problem-- for example, if you try to > move the cursor,Pd moves it based on Miller's font metrics, not the users. > > Actually, I'm not at all certain if its the Pd font metrics. It may be > that the font engine uses different > inter-line spacing, or that tcl/tk reports the wrong metric, or something > else. The point is that if your > message box is 400 pixels high and the text that fills it is only 380 > pixels high, Pd calculates cursor > position based on the _box_ size. As you add more lines to the box that > discrepancy grows until > it becomes nearly impossible to move the cursor or select text accurately. > > -Jonathan > > > > On Saturday, October 3, 2015 12:12 PM, Jonathan Wilkes via Pd-list < > pd-list@lists.iem.at> wrote: > > > What font are you using? > > I have to admit that after looking at Pd's font system, I have no idea how > it's supposed to > work. There are two hardcoded collections of font metrics-- one in > font_fixed_metrics in that > tcl file, and another in s_main.c called sys_fontlist. It looks like the > one in the tcl file is used as > a point of reference against which tcl/tk can measure the font on the > user's system. But then > when you sent those metrics off to Pd, it takes them and compares them > _again_, this time > against the sys_fontlist min/max x/y values. That seems unnecessarily > complex and prone > to error. > > And I use "hardcoded" loosely-- for all the "pixel exact" talk wrt > Pd-extended, you would think > that the sys_fontlist in s_main.c would never change. Those numbers > determine the max size > of msg/obj boxes; if you increase the maximum height/width there, then > someone's perfectly > arranged patch in 0.39 could have overlapping objects in 0.46. But > they've been changed > slightly over the years, so I don't think I'm the only one who doesn't > understand the system. > > Additionally, Pd-extended standardized the default font on each platform > to be DejaVu Sans Mono. > I could be wrong, but I think Miller uses a different font. The main > place this becomes a problem > is with multi-line message boxes. Typically, you end up with a bunch of > extra space at the bottom > of the box. (And tcl/tk doesn't let you control the spaces between lines > of text so there's no way > to fix it.) This becomes more than an aesthetic problem-- for example, if > you try to move the cursor, > Pd moves it based on Miller's font metrics, not the users. This means > that for large message boxes, > when a Pd-extended user tries to select a line of text it will select the > text a line or two above that. > > At the moment, I've got DejaVu Sans Mono perfectly size to fit Miller's > sys_fontlist in the GUI > port. One of the side effects is that the characters of the font itself > are noticeably larger than > they are in Pd-Vanilla. For example, [get] in my port will touch the top > of the outlet with the bottom > of the "g" character. I've found that making the xlets light gray is a > decent compromise, and that > things are generally more readable. (I'm also not using bold typeface.) > > I was also going to try Droid Sans Mono Dotted because I read that it > covers CJK characters. > But in my tests it looks like DejaVu does as well, so I haven't done that. > > -Jonathan > > > On Saturday, October 3, 2015 2:24 AM, Roman Haefeli <reduz...@gmail.com> > wrote: > > > Only after having access to more Windows virtual machines, I realize > this is an issue only on _one_ Windows machine (unfortunately, the one I > did the most of the testing with). > > Sorry for the noise (that caused no reaction anyway). > > Roman > > On Don, 2015-09-10 at 14:43 +0200, Roman Haefeli wrote: > > Hi all > > > > It's old news, but deken makes Pd-vanilla _the_ target platform and I do > > care about portability: > > > > Font sizes in canvasses are different between Linux and Windows. > > > > Some patches created on Linux break on Windows because symbol boxes are > > overlapping the GOP area and are not visible anymore. > > > > From the list of available sizes in the 'Edit'->'Font' menu, only a few > > sizes are actually affected. The sizes 8, 10 and 12 are one pixel per > > character wider on Windows than on Linux. The sizes 16, 24 and 36 are > > OK. > > > > Now the question is what is the correct way to fix that, I mean on what > > platform should it be changed? I'd say it should be changed on Windows, > > because I can't imagine that shrinking boxes would break any patches, > > while widening boxes might do. > > > > Pd-extended already dealt with the issue and apparently found a fix. > > What would speak against incorporating that fix into Pd? > > > > Roman > > > > _______________________________________________ > Pd-list@lists.iem.at mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list > > > > _______________________________________________ > Pd-list@lists.iem.at mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list > > > > _______________________________________________ > Pd-list@lists.iem.at mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list > >
_______________________________________________ Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
