Re: [fltk.general] change labelfont and labelize in fltk 1.3.2
Thanks for responding, Greg. I made an error writing the report from the compiler. The code is a copy from the hello.cxx on the fltk.org site. The compiler statement actually reads : /hello.cxx:7: undefined reference to 'Fl_Box::Fl_Box(int, int, int, int, char const*)' Assuming your code is short, post it here. I'm guessing you have forgotten to include the FL/Fl_Box.H header files... This email and any attachments are confidential to the intended recipient and may also be privileged. If you are not the intended recipient please delete it from your system and notify the sender. You should not copy it or use it for any purpose nor disclose or distribute its contents to any other person. ___ fltk mailing list fltk@easysw.com http://lists.easysw.com/mailman/listinfo/fltk
Re: [fltk.general] change labelfont and labelize in fltk 1.3.2
On 22.02.2013 03:09, edgar wrote: On 21 Feb 2013, at 20:33, edgar wrote: Hi Ian - that fixed it! Thanks!!! I've been able to compile numerous tests and play around with the font size and style. Here is a different issue: the fltk-config --complile is not finding FL_Box. I typed fltk-config --complile hello.cxx and get an error message /hello.cxx:7: undefined reference to 'FL_Box::Fl_Box(int, int, int, int, char const*)' It is finding FL_Window but not FL_Box ... But it will compile programs that do not require FL_Box. I am assuming it is located in libfltk.a which is in usr/lib/x86_64- linux-gnu - Is that correct? No, according to your previous posting this is not correct! There you wrote: Here is what I did: tar -xvzf fltk-1.3.2-source.tar.gz cd fltk-1.3.2 ./configure make #make install I presume you meant that you did not run make install. That's fine and is the recommended way for development (recommended by the fltk developer team). However, if ther is some older version in the system library/include area (path), then you may get conflicts, if you don't take care. Any suggestions? Use the /full/path/to/fltk-config (not only fltk-config, as you wrote above) to compile your test program. This should pull in all required files from the fltk library you just compiled (if it is in /full/path/to/...). However, there's still one small possibility that you might get the wrong lib when _running_ your app (this is not the case if you get linker errors as you wrote). To be absolutely sure you should maybe run configure with --disable-shared so that the shared libs are not built, but this is the default anyway. If you are trying to build fltk from source, as you described, then you should consider uninstalling the system fltk package and all fltk versions you may have installed previously, unless you need fltk for another system-supplied package. Albrecht ___ fltk mailing list fltk@easysw.com http://lists.easysw.com/mailman/listinfo/fltk
Re: [fltk.general] change labelfont and labelize in fltk 1.3.2
On 22.02.2013 10:44, MacArthur, Ian (Selex ES, UK) wrote: Thanks for responding, Greg. I made an error writing the report from the compiler. The code is a copy from the hello.cxx on the fltk.org site. The compiler statement actually reads : /hello.cxx:7: undefined reference to 'Fl_Box::Fl_Box(int, int, int, int, char const*)' Assuming your code is short, post it here. I'm guessing you have forgotten to include the FL/Fl_Box.H header files... Hmm, the error message is a linker error, so the compiling stage should have passed successfully. Maybe a library version mix, as I wrote in my other post? Albrecht ___ fltk mailing list fltk@easysw.com http://lists.easysw.com/mailman/listinfo/fltk
Re: [fltk.general] change labelfont and labelize in fltk 1.3.2
Hmm, the error message is a linker error, so the compiling stage should have passed successfully. Maybe a library version mix, as I wrote in my other post? Oops, oh yeah! This email and any attachments are confidential to the intended recipient and may also be privileged. If you are not the intended recipient please delete it from your system and notify the sender. You should not copy it or use it for any purpose nor disclose or distribute its contents to any other person. ___ fltk mailing list fltk@easysw.com http://lists.easysw.com/mailman/listinfo/fltk
Re: [fltk.general] change labelfont and labelize in fltk 1.3.2
If you are trying to build fltk from source, as you described, then you should consider uninstalling the system fltk package and all fltk versions you may have installed previously, unless you need fltk for another system-supplied package. Albrecht Hi Albrecht, I took your advice. I wiped everything clean and rebuilt and everything seems to be running as it should. There must have been some conflict from a previous build. Thanks also to Ian for sending the names of the additional dev packages. That made all the difference! Best, Edgar ___ fltk mailing list fltk@easysw.com http://lists.easysw.com/mailman/listinfo/fltk
Re: [fltk.general] change labelfont and labelize in fltk 1.3.2
Hi Ian, Thanks so much for all of the terrific advice. I have a lot of experience using Finale and ProTools, but I am new to programming. Music applications? You mean like Finale and Sibelius? Or something else? I teach music theory at a college in Illinois. I take it you are in the UK? I taught at Christ Church College in Canterbury for a while back in the 90's. I would like to write some music education applications: nothing nearly as vast as Finale or Sibelius, but little programs that parse MIDI into notation or vice versa. I have written some algorithmic composition programs and some programs that generate tone rows and matrices but nothing too deep. Now, assuming you are talking about something like Sibelius, then I'd start= by cautioning that may be better looking at some of the options already in= that space; Musescore, Rosegarden, Lilypond, etc... I will check these out! Thanks for the tip! Now, (disclosure time) I actually did write a music score app, for a charit= y here that uses music therapy in their work with children and disabled adu= lts, and they wanted their own proprietary music scoring tool. (It is propr= ietary, so the source is not available.) Scoring music is trickier than it = looks... I spoke to a guy who codes for Auralia who said the same thing. I guess I have my work cut out for me... BTW, do you know of some simple MIDI programs that are open source for means of studying the code? Aside: If you consider writing software as a journey, then if the *destinat= ion* is more important to you than the journey itself, I'd strongly advocat= e getting involved in Musescore and see if you can turn that to your needs.= It's a good bit of work, and quite flexible, and they have a usable plug-i= n system for custom behaviours. That sounds great. If the *journey* itself is what you are interested in then, yes, go for it = and write your own. It'll be fun (for certain interpretations of the word = fun at any rate!) As regards fonts, I'm currently using Musica (version 3.06 IIRC) and I quit= e like it; though there are quite a lot of free music fonts around. The free fonts have the advantage that they tend to implement the Unicode c= ode points for the music glyphs, and also often implement support for non-W= estern and historical symbols. The fonts that Sibelius use (and I think Finale) have their glyphs in weird= , non-Unicode places, which is a real pain to work with... Loading non-standard fonts into fltk apps is not painful. Indeed, in most cases you don't even have to install the font (in OSX you j= ust put it in the app bundle, in Windows you use AddFontResourceEx(), and u= nder Linux you can do, well, several options actually!) Thanks again. I hope I can pick your brain as this project develops. All best, Edgar Crockett This email and any attachments are confidential to the intended recipient and may also be privileged. If you are not the intended recipient please delete it from your system and notify the sender. You should not copy it or use it for any purpose nor disclose or distribute its contents to any other person. ___ fltk mailing list fltk@easysw.com http://lists.easysw.com/mailman/listinfo/fltk
Re: [fltk.general] change labelfont and labelize in fltk 1.3.2
On 22 Feb 2013, at 22:16, edgar wrote: Thanks so much for all of the terrific advice. You're welcome: we're happy to help! I have a lot of experience using Finale and ProTools, but I am new to programming. Take a look at Musescore and Rosegarden then - they cover a lot of the same ground as Finale and ProTools, but are open source, so you can tweak them to your needs more. The workflow is a bit different, in places, but you can do the same things... I would like to write some music education applications: nothing nearly as vast as Finale or Sibelius, but little programs that parse MIDI into notation or vice versa. There's a whole can o' worms hiding in there though: parsing notation into MIDI is pretty easy, but parsing MIDI into notation is *hard* as MIDI doesn't retain enough information about what was originally notated... In many cases it just holds a stream of notes, and the voice each is played with. So you need to figure out the time sig, the key, what the parts are, and if it's a piano (say) you need to guess whether to notate the notes to the right or left hand, and so on... And then actually getting the notation to layout nicely on the page is just a nightmare - I used Sibelius a fair bit (quite a few years ago now!) and it always did an OK sort of job laying things out; I didn't realise at the time just how hard that actually was to achieve! In our tool, we looked at embedding meta-data into the MIDI stream to retain more of the layout from the original notation, but it wasn't nice. Ended up using a version of MusicXML to store the layout information (and it is fairly easy to convert that to MIDI to play it anyway...) Most of the main tools can read/write MusicXML format these days (though none have it as their primary format) so it does represent a sort of common format for exchanging material between tools. Scoring music is trickier than it looks... I spoke to a guy who codes for Auralia who said the same thing. I guess I have my work cut out for me... Yes: have fun! BTW, do you know of some simple MIDI programs that are open source for means of studying the code? Depends what it is you want to do. The MIDI file format is not all that complex, so it is pretty easy to read/write the raw files. That said, I mainly use Portmidi (an open source MIDI lib) to output MIDI data these days as it runs on all the platforms I use, and once you get used to its API, it works OK for playing stuff in real time. Or maybe I answered the wrong question? ___ fltk mailing list fltk@easysw.com http://lists.easysw.com/mailman/listinfo/fltk
Re: [fltk.general] change labelfont and labelize in fltk 1.3.2
On 21 Feb 2013, at 02:35, edgar wrote: I copied hello.cxx from the docs and compiled but the font comes up tiny- definitely not 36 - and does not change when other values are given as arguments. Nor do the fonts change. If you send me an email address I will send a screenshot with code and the FLTK window. One note is that the compiler g++ could not locate the Xext library so I removed it from the compile statement. Is the label font size and type dependent on the Xext lib? No lib Xext? I'm surprised fltk works at all...! I'm guessing you don't have the dev packages installed then. If you don't have Xext dev packages, then you are probably missing a load of other good stuff too, so that probably does explain the behaviour you are seeing... I can rebuild fltk but it was challenging to get the X11 libraries to link up so I would rather find Xext and get it in the right path if that is the problem. Yes, sounds like you need to install the dev packages. What system did you say you were on? Is it ubuntu? They seem to have taken the whole user focus thing a bit too far in their desktop systems, and they leave out a whole pile of dev stuff that you likely need! From memory... try... apt-get install libx11-dev apt-get install libxt-dev apt-get install libxft-dev apt-get install libglut3-dev Though that list is probably wrong! Then re-run the fltk configure script from scratch and then rebuild fltk - after that, I'd hope things would be better! ___ fltk mailing list fltk@easysw.com http://lists.easysw.com/mailman/listinfo/fltk
Re: [fltk.general] change labelfont and labelize in fltk 1.3.2
On 21 Feb 2013, at 02:35, edgar wrote: I copied hello.cxx from the docs and compiled but the font comes up = tiny- definitely not 36 - and does not change when other values are given as = arguments. Nor do the fonts change. If you send me an email address I = will send a screenshot with code and the FLTK window. =20 One note is that the compiler g++ could not locate the Xext library so = I removed it from the compile statement. Is the label font size and type dependent on the Xext lib? No lib Xext? I'm surprised fltk works at all...! I'm guessing you don't have the dev packages installed then. If you = don't have Xext dev packages, then you are probably missing a load of = other good stuff too, so that probably does explain the behaviour you = are seeing... I can rebuild fltk but it was challenging to get the X11 libraries to = link up so I would rather find Xext and get it in the right path if that = is the problem. Yes, sounds like you need to install the dev packages. What system did you say you were on? Is it ubuntu? They seem to have = taken the whole user focus thing a bit too far in their desktop systems, = and they leave out a whole pile of dev stuff that you likely need! =46rom memory... try... apt-get install libx11-dev apt-get install libxt-dev apt-get install libxft-dev apt-get install libglut3-dev =20 Though that list is probably wrong! Then re-run the fltk configure script from scratch and then rebuild fltk = - after that, I'd hope things would be better! Hello again, I installed the packages above as mentioned. One note according to Ubuntu support: libglut3-dev has been replaced. This package has been replaced by ``freeglut3-dev''. Could this be affecting the fonts? Anyway, everything installed except libglut3-dev, so I installed freeglut3-dev. I then reconfigured the fltk and rebuilt. Here is what I did: tar -xvzf fltk-1.3.2-source.tar.gz cd fltk-1.3.2 ./configure make #make install Does the build require flags before running the configure script? So fltk runs and I can compile the programs but unfortunately it still does not change the labelsize or labelfont. Do I need to include extra libraries in the compiler statement? Here is how I am compiling: g++ -Wall hellofltk.cxx -I/usr/local/include -L/usr/local/lib -o hellofltk -lfltk lXext -lX11 -lm Thanks. Please save me from the bloat of Qt or GTK! edgar ___ fltk mailing list fltk@easysw.com http://lists.easysw.com/mailman/listinfo/fltk
Re: [fltk.general] change labelfont and labelize in fltk 1.3.2
On 21 Feb 2013, at 20:33, edgar wrote: I installed the packages above as mentioned. One note according to Ubuntu support: libglut3-dev has been replaced. This package has been replaced by ``freeglut3-dev''. Could this be affecting the fonts? No, that would only affect use of GL and GLUT, not regular font handling... Does the build require flags before running the configure script? Not on a normal system... might need that if your set up is odd in some way, but any stock distro would be fine as is. So fltk runs and I can compile the programs but unfortunately it still does not change the labelsize or labelfont. Do I need to include extra libraries in the compiler statement? Yes, from what you have, I'd say you are missing a good few things... Here is how I am compiling: g++ -Wall hellofltk.cxx -I/usr/local/include -L/usr/local/lib -o hellofltk -lfltk lXext -lX11 -lm OK, first off, you need to read up on fltk-config, there's a HowTo here: http://www.fltk.org/articles.php?L599 But in summary, if you are compiling a single file, don't do it yourself, let fltk-config figure it out for you: fltk-config --compile my_file.cxx That way, the right libs should get pulled in... To find out what the right libs are, try: fltk-config --ldstaticflags And see what gets listed. I'd guess something like... /path/to/libfltk.a -lXext -lXft -lfontconfig -lXinerama -lpthread -ldl -lm -lX11 The kickers there, at least in terms of font handling, are Xft and fontconfig. Xinerama probably won't matter much, and pthreads and dl you will need once your code becomes more complex, though probably not for the sample code you are testing right now! ___ fltk mailing list fltk@easysw.com http://lists.easysw.com/mailman/listinfo/fltk
Re: [fltk.general] change labelfont and labelize in fltk 1.3.2
On 21 Feb 2013, at 20:33, edgar wrote: =20 I installed the packages above as mentioned. One note according to = Ubuntu support: libglut3-dev has been replaced. This package has been = replaced by ``freeglut3-dev''. Could this be affecting the fonts? No, that would only affect use of GL and GLUT, not regular font = handling... Does the build require flags before running the configure script? Not on a normal system... might need that if your set up is odd in = some way, but any stock distro would be fine as is. So fltk runs and I can compile the programs but unfortunately it still = does not change the labelsize or labelfont. Do I need to include extra = libraries in the compiler statement? Yes, from what you have, I'd say you are missing a good few things... Here is how I am compiling: =20 g++ -Wall hellofltk.cxx -I/usr/local/include -L/usr/local/lib -o = hellofltk -lfltk lXext -lX11 -lm OK, first off, you need to read up on fltk-config, there's a HowTo here: http://www.fltk.org/articles.php?L599 But in summary, if you are compiling a single file, don't do it = yourself, let fltk-config figure it out for you: fltk-config --compile my_file.cxx That way, the right libs should get pulled in... To find out what the right libs are, try: fltk-config --ldstaticflags And see what gets listed. I'd guess something like... /path/to/libfltk.a -lXext -lXft -lfontconfig -lXinerama -lpthread -ldl = -lm -lX11 The kickers there, at least in terms of font handling, are Xft and = fontconfig. Xinerama probably won't matter much, and pthreads and dl you will need = once your code becomes more complex, though probably not for the sample code you = are testing right now! Thanks so much Ian! I will read up and let you know how it goes. BTW, I am hoping to write music applications. Does fltk have any music fonts or libraries dealing with music notation? Best, Edgar ___ fltk mailing list fltk@easysw.com http://lists.easysw.com/mailman/listinfo/fltk
Re: [fltk.general] change labelfont and labelize in fltk 1.3.2
On 21 Feb 2013, at 20:33, edgar wrote: Hi Ian - that fixed it! Thanks!!! I've been able to compile numerous tests and play around with the font size and style. Here is a different issue: the fltk-config --complile is not finding FL_Box. I typed fltk-config --complile hello.cxx and get an error message /hello.cxx:7: undefined reference to 'FL_Box::Fl_Box(int, int, int, int, char const*)' It is finding FL_Window but not FL_Box ... But it will compile programs that do not require FL_Box. I am assuming it is located in libfltk.a which is in usr/lib/x86_64- linux-gnu - Is that correct? Any suggestions? ___ fltk mailing list fltk@easysw.com http://lists.easysw.com/mailman/listinfo/fltk
Re: [fltk.general] change labelfont and labelize in fltk 1.3.2
On 02/21/13 18:09, edgar wrote: On 21 Feb 2013, at 20:33, edgar wrote: Hi Ian - that fixed it! Thanks!!! I've been able to compile numerous tests and play around with the font size and style. Here is a different issue: the fltk-config --complile is not finding FL_Box. I typed fltk-config --complile hello.cxx and get an error message /hello.cxx:7: undefined reference to 'FL_Box::Fl_Box(int, int, int, int, char const*)' It is finding FL_Window but not FL_Box ... Note the casing on the names: the 'l' in Fl_* should be lowercase. ie: Fl_Window and Fl_Box, ..and not.. FL_Window and FL_Box. ___ fltk mailing list fltk@easysw.com http://lists.easysw.com/mailman/listinfo/fltk
Re: [fltk.general] change labelfont and labelize in fltk 1.3.2
On 02/21/13 18:09, edgar wrote: On 21 Feb 2013, at 20:33, edgar wrote: Hi Ian - that fixed it! Thanks!!! I've been able to compile numerous tests and play around with the font size and style. Here is a different issue: the fltk-config --complile is not finding FL_Box. I typed fltk-config --complile hello.cxx and get an error message /hello.cxx:7: undefined reference to 'FL_Box::Fl_Box(int, int, int, int, char const*)' It is finding FL_Window but not FL_Box ... Note the casing on the names: the 'l' in Fl_* should be lowercase. ie: Fl_Window and Fl_Box, ..and not.. FL_Window and FL_Box. ___ fltk mailing list fltk@easysw.com http://lists.easysw.com/mailman/listinfo/fltk
Re: [fltk.general] change labelfont and labelize in fltk 1.3.2
On 02/21/13 18:09, edgar wrote: the fltk-config --complile is not finding Fl_Box. I typed fltk-config --complile hello.cxx and get an error message /hello.cxx:7: undefined reference to 'FL_Box::Fl_Box(int, int, int, int, char const*)' It is finding FL_Window but not FL_Box ... Note the casing on the names: the 'l' in Fl_* should be lowercase. ie: Fl_Window and Fl_Box, ..and not.. FL_Window and FL_Box. Thanks for responding, Greg. I made an error writing the report from the compiler. The code is a copy from the hello.cxx on the fltk.org site. The compiler statement actually reads : /hello.cxx:7: undefined reference to 'Fl_Box::Fl_Box(int, int, int, int, char const*)' Other suggestions? By the way - I am enjoying your cheat sheet tutorials. Edgar ___ fltk mailing list fltk@easysw.com http://lists.easysw.com/mailman/listinfo/fltk
