[racket] text/font not rendering symbol fonts on WinXP

From: Clement Erik Ferguson (clementraphael at gmail.com)
Date: Fri Nov 23 19:37:38 EST 2012

Thank you for the suggestion, but that didn't work on XP or Ubuntu. Should
I submit the issue to Racket's github? I'm new to programming and don't
know what the protocol is for things like this...


On Fri, Nov 23, 2012 at 4:32 PM, Robby Findler
<robby at eecs.northwestern.edu>wrote:

> Oh, I see. I'm sorry I don't know what is going wrong. Different
> versions of cairo/pango could be relevant, possibly.
>
> I doubt it is going to matter, but if you change the expression on
> line 932 in collects/mrlib/image-core.rkt:
>
>            (send dc draw-text (text-string np-atomic-shape)
>                  (real-part p)
>                  (imag-part p)
>                  #f 0 θ)
>
> by turning the #f into a #t, does that change anything?
>
> Robby
>
>
> On Fri, Nov 23, 2012 at 2:55 PM, Clement Erik Ferguson
> <clementraphael at gmail.com> wrote:
> > I'm sorry, I don't think I've explained the problem I'm having clearly.
> >
> > I have fonts that I'm using that map latin characters to neumes for
> > byzantine chant music. So pressing "1" gives me a particular musical
> symbol,
> > and "a" gives me another symbol. I am trying to use text/font to render
> > those symbols, so I call it with a "1" but I'm getting a "1" instead of
> the
> > musical symbol on certain platforms. This method works fine on Ubuntu
> 12.04
> > 32bit and a Debian system that another user tested it on (I'm not sure of
> > the version info), but it isn't working on Windows XP and on Ubuntu 12.10
> > 64bit.
> >
> > If you go to https://github.com/muraiki/byzscribe and scroll down to the
> > picture, you can see what the output should look like. On platforms
> where it
> > doesn't work, instead of getting the musical symbols I simply get the
> > textual string that should map to those symbols, such as 01a.
> >
> > You can download the font package, which includes a PDF with a character
> > table, from here:
> http://www.stanthonysmonastery.org/music/ByzMusicFonts.zip
> > The character table is EZ-CharacterTables.pdf
> >
> > The other symbol fonts that I've tried work in the same way, although
> > instead of musical symbols they have other things like snowflakes and
> > shapes. Those aren't the fonts that I need to use, but I wanted to make
> sure
> > that the problem didn't lie in the byzantine chant fonts. On platforms
> where
> > the byzantine chant fonts don't work as expected, no other symbol fonts
> > work, either.
> >
> > I'm sorry if this is a bit confusing. Thank you for your help!
> >
> >
> >
> > On Fri, Nov 23, 2012 at 3:38 PM, Robby Findler <
> robby at eecs.northwestern.edu>
> > wrote:
> >>
> >> If you want to use, say, α, then you need an actual α in the string, not
> >> an "a".
> >>
> >> I don't know how the dingbats work, but certainly that's how it works
> >> for characters that are in the unicode character set.
> >>
> >> (You can type those characters by using their LaTeX equivalents and
> >> then hitting control-\ or alt-\ (depending on the platform).)
> >>
> >> Robby
> >>
> >> On Fri, Nov 23, 2012 at 2:02 PM, Clement Erik Ferguson
> >> <clementraphael at gmail.com> wrote:
> >> > Now I'm experiencing the same problem in Ubuntu 12.10. No symbol fonts
> >> > render when using text/font; I only get the latin text equivalent. I
> >> > tried
> >> > this using the Dingbats font built into Ubuntu along with custom
> symbol
> >> > fonts I had downloaded. Both Dingbats and the other symbol fonts I
> >> > downloaded work fine in other programs.
> >> >
> >> > The system where this did work correctly was an Ubuntu 12.04 machine
> >> > (running under a VM). The Ubuntu 12.10 machine I'm using now is a
> fresh
> >> > OS
> >> > installation using the 64-bit binary downloaded from the Racket site.
> >> >
> >> > Is anyone else using Ubuntu 12.10? Can you try running the following
> >> > code?
> >> >
> >> > (require 2htdp/image)
> >> > (text/font "test" FONT-SIZE "black" "Dingbats" 'symbol 'normal 'normal
> >> > #f)
> >> >
> >> > This should render some triangles and a snowflake, not "test".
> >> >
> >> > Thanks!
> >> >
> >> >
> >> > On Wed, Nov 21, 2012 at 1:54 PM, Robby Findler
> >> > <robby at eecs.northwestern.edu>
> >> > wrote:
> >> >>
> >> >> The text/font function ultimately just calls find-or-create-font with
> >> >> the font details and then draw-string on the dc<%> with the string,
> so
> >> >> I guess that this is either a problem at that level of the Racket GUI
> >> >> system, or something that is just different about how Windows works
> >> >> from other platforms. (Sorry I don't know the right answer here.)
> >> >>
> >> >> Robby
> >> >>
> >> >> On Wed, Nov 21, 2012 at 12:29 PM, Clement Erik Ferguson
> >> >> <clementraphael at gmail.com> wrote:
> >> >> > Hi all,
> >> >> >
> >> >> > I'm a newcomer to Racket and I ran into a problem with the
> text/font
> >> >> > function in 2htdp/image. stamourv on #racket helped me diagnose
> this,
> >> >> > and it
> >> >> > seems to be a problem confined to Windows XP. When using text/font
> >> >> > with
> >> >> > a
> >> >> > symbol font like Wingdings or Symbol (standard symbol fonts
> included
> >> >> > with
> >> >> > Windows) the character is not rendered. Instead, I get whatever the
> >> >> > equivalent Roman character would be.
> >> >> >
> >> >> > For instance:
> >> >> >
> >> >> > (define testingfont
> >> >> >   (text/font "012abc" 36 "black"
> >> >> >              "Wingdings" 'default 'normal 'normal #f))
> >> >> >
> >> >> > If I then type testingfont into the interactions window, instead of
> >> >> > rendering a series of symbols I get the input string 012abc
> instead.
> >> >> > I
> >> >> > also
> >> >> > tried using 'symbol instead of 'default. We tried the same code on
> >> >> > Debian
> >> >> > (stamourv) and Ubuntu (me) and it worked fine on those platforms.
> >> >> >
> >> >> > I'm running Windows XP 32-bit, and I am using Racket 5.3.1.
> >> >> >
> >> >> > Thanks!
> >> >> >
> >> >> > ____________________
> >> >> >   Racket Users list:
> >> >> >   http://lists.racket-lang.org/users
> >> >> >
> >> >
> >> >
> >
> >
>
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