OpenEuphoria

1. wxEuphoria Linux Problem: double clicking freecell executable

• Posted by Kenneth Rhodes <ken_rhodes30436 at yahoo.com> Aug 16, 2005
• 555 views

Jerry Story wrote:
> 
> The problem remains unsolved.
> 
> The problem has nothing to do with translating from Eu to C.
> I am not trying to do that.
> 
> Only:
> bindu freecell.exu
> (This is a demo in wxEuphoria.)
> 
> Now there is a binded file called freecell.
> 
> I can run it by:
> ./freecell
> 
> What I want to do is run it by clicking on it.
> 

ok 
with: Euphoria 2.5, *bindu freecell.exw* renders the executable file
"freecell"...

with: SuSE 9.3/KDE/nautilus/ double clicking "freecell" executes the
program perfectly.

with: SuSE 9.3/KDE/gentoo/ double clicking "freecell" executes the
program perfectly.

with: SuSE 9.3/KDE/Konqueror/ single clicking "freecell" results in an aborted
run with a blank freecell window and an error message indicating that the image
from cards.png cannot be loaded: the file does not exist.

I believe the problem may be a Linux Desktop/file manager issue.  

Ken Rhodes
SuSE Linux 9.3
100% MicroSoft Free

3. Re: wxEuphoria Linux Problem: double clicking freecell executable

• Posted by Chris Burch <chriscrylex at aol.com> Aug 16, 2005
• 516 views
• Last edited Aug 17, 2005

Kenneth Rhodes wrote:
> 
> Jerry Story wrote:
> > 
> > The problem remains unsolved.
> > 
> > The problem has nothing to do with translating from Eu to C.
> > I am not trying to do that.
> > 
> > Only:
> > bindu freecell.exu
> > (This is a demo in wxEuphoria.)
> > 
> > Now there is a binded file called freecell.
> > 
> > I can run it by:
> > ./freecell
> > 
> > What I want to do is run it by clicking on it.
> > 
> 
> ok 
> with: Euphoria 2.5, *bindu freecell.exw* renders the executable file
> "freecell"...
> 
> with: SuSE 9.3/KDE/nautilus/ double clicking "freecell" executes the
> program perfectly.
> 
> with: SuSE 9.3/KDE/gentoo/ double clicking "freecell" executes the
> program perfectly.
> 
> with: SuSE 9.3/KDE/Konqueror/ single clicking "freecell" results in an aborted
> run
> with a blank freecell window and an error message indicating that the image
> from cards.png
> cannot be loaded: the file does not exist. 
> 
> I believe the problem may be a Linux Desktop/file manager issue.  
> 
> Ken Rhodes
> SuSE Linux 9.3
> 100% MicroSoft Free
> 

Hi

No, its not, its a path issue.

Generally speaking, when I want to run a gui program from a click, I write a
little script, which changes the current directory to the one the program is in,
then runs the program. If all the files required by the eu program are relative
to this, then everytthing works fine.

eg, I use my Fax Centre (in the archives), to filter out all the junk faxes I
get, and automatically print faxes from known senders.

To start the program, I use the script

cd ~/Faxes               (its in the Faxes directory of my home directory)
FaxC.exe                 (I've named the bound executable an exe (sorry))

click on this, and everything works (as long as the script is executable of
course) (chmod +x FaxC.scr)

Chris

http://members.aol.com/chriscrylex/euphoria.htm
http://uboard.proboards32.com/

5. Re: wxEuphoria Linux Problem: double clicking freecell executable

• Posted by Chris Burch <chriscrylex at aol.com> Aug 18, 2005
• 528 views

Jerry Story wrote:
> 
> Chris Burch wrote:
> > 
> > No, its not, its a path issue.
> > 
> > Generally speaking, when I want to run a gui program from a click,
> > I write a little script, which changes the current directory to the
> > one the program is in, then runs the program. If all the files
> > required by the eu program are relative to this, then everytthing
> > works fine.
> > 
> > eg, I use my Fax Centre (in the archives), to filter out all the
> > junk faxes I get, and automatically print faxes from known senders.
> > 
> > To start the program, I use the script
> > 
> > cd ~/Faxes      (its in the Faxes directory of my home directory)
> > FaxC.exe        (I've named the bound executable an exe (sorry))
> > 
> > click on this, and everything works (as long as the script is
> > executable of course)
> > (chmod +x FaxC.scr)
> > 
> > Chris
> > 
> > <a
> > href="http://members.aol.com/chriscrylex/euphoria.htm">http://members.aol.com/chriscrylex/euphoria.htm</a>
> > <a href="http://uboard.proboards32.com/">http://uboard.proboards32.com/</a>
> > 
> 
> Pardon my ignorance. What's a script?  Is it something like bindu?
> When I click on bindu, it doesn't work either.
> 
> Would I need to run the script before running myprog?
> That might work for me, but people who download myprog expect it to run simply
> by clicking
> on it.
> 


A script is like a batch file in DOS. It will run a series of linux commands one
after the other. Look for BASH scripting on the net for what you can do with it,
but in its simplest form, if you have to repeat sets of commands over and over
again, then instead of doing so, just put them into a script, and run the script.

eg, for whatever reason, I have a file, which is made by another program, and I
want to print it, and then delete it, I know the name of the file, and its always
the same, then eack time I would have to type

lpr ./the_file
rm ./the file

now instead I could put them into a script, I'll call it prem (print and
remove), so I would do mc -e prem (I HATE vim), which starts a text editor,
editing a new file called prem, enter thr above lines into it (don't worry about
shebang, look that up later (hee hee)), then save the file (F2), exit (F10), and
then make the file executable (chmod +x prem).

Now if I wanted to print and remove the file, I would just type prem

When you click on an executable file from Konqueror (or whatever file manager
you are using) or the desktop, you are not necasserily starting from the correct
directory, so any program called may not also be starting in the correct
directory, and consequently no know where to look for things it needs (like card
pictures), so I use a script to change to the correct directory, and then this
script executes program I want to run.

Clear as mud?

Chris



http://members.aol.com/chriscrylex/euphoria.htm
http://uboard.proboards32.com/

7. Re: wxEuphoria Linux Problem: double clicking freecell executable

• Posted by ChrisBurch2 <crylex at freeuk.co.uk> Aug 18, 2005
• 528 views

Jerry Story wrote:
> 
> Chris Burch wrote:
> > 
> > Jerry Story wrote:
> > > 
> > > Chris Burch wrote:
> > > > 
> > > > No, its not, its a path issue.
> > > > 
> > > > Generally speaking, when I want to run a gui program from a click,
> > > > I write a little script, which changes the current directory to the
> > > > one the program is in, then runs the program. If all the files
> > > > required by the eu program are relative to this, then everytthing
> > > > works fine.
> > > > 
> > > > eg, I use my Fax Centre (in the archives), to filter out all the
> > > > junk faxes I get, and automatically print faxes from known senders.
> > > > 
> > > > To start the program, I use the script
> > > > 
> > > > cd ~/Faxes      (its in the Faxes directory of my home directory)
> > > > FaxC.exe        (I've named the bound executable an exe (sorry))
> > > > 
> > > > click on this, and everything works (as long as the script is
> > > > executable of course)
> > > > (chmod +x FaxC.scr)
> > > > 
> > > > Chris
> > > > 
> > > > <a
> > > > href="http://members.aol.com/chriscrylex/euphoria.htm">http://members.aol.com/chriscrylex/euphoria.htm</a>
> > > > <a
> > > > href="http://uboard.proboards32.com/">http://uboard.proboards32.com/</a>
> > > > 
> > > 
> > > Pardon my ignorance. What's a script?  Is it something like bindu?
> > > When I click on bindu, it doesn't work either.
> > > 
> > > Would I need to run the script before running myprog?
> > > That might work for me, but people who download myprog expect
> > > it to run simply by clicking on it.
> > 
> > A script is like a batch file in DOS. It will run a series of
> > linux commands one after
> > the other. Look for BASH scripting on the net for what you can do
> > with it, but in its
> > simplest form, if you have to repeat sets of commands over
> > and over again, then instead
> > of doing so, just put them into a script, and run the script.
> > 
> > eg, for whatever reason, I have a file, which is made by
> > another program, and I want
> > to print it, and then delete it, I know the name of the file,
> > and its always the same,
> > then eack time I would have to type
> > 
> > lpr ./the_file
> > rm ./the file
> > 
> > now instead I could put them into a script, I'll call it prem
> > (print and remove), so
> > I would do mc -e prem (I HATE vim), which starts a text editor,
> > editing a new file
> > called prem, enter thr above lines into it (don't worry about shebang,
> > look that up later (hee hee)), then save the file (F2),
> > exit (F10), and then make the file executable
> > (chmod +x prem).
> > 
> > Now if I wanted to print and remove the file, I would just type prem
> > 
> > When you click on an executable file from Konqueror
> > (or whatever file manager you are
> > using) or the desktop, you are not necasserily starting from
> > the correct directory,
> > so any program called may not also be starting in the
> > correct directory, and consequently
> > no know where to look for things it needs (like card pictures),
> > so I use a script to
> > change to the correct directory, and then this script
> > executes program I want to run.
> > 
> > Clear as mud?
> > 
> > Chris
> 
> I now understand better what a script is, but
> how it solves the problem is still as clear as mud to me.
> 
> Question 1:
> Do you mean that I should make a script and click on it?
> 
Yes.

> Question 2:
> If myprog doesn't know how to find itself, how does the script
> know how to find itself?
>
Got me on that one. Eu progs in Linux are pretty bad at finding themselves,
or knowing where they are starting from. It turns out, and thinking about it
on the way to work, that most programs are installed in standard places
(/usr/bin, /usr/x11/bin et al), so they know where they are going, if a
filename is passed to a program, then the full path is passed (which solves
the problem of the program knowing where the file to bo worked on is). If
anybody can think of a program in Linux (not just eu) that knows where itself
is, or doesn't create a directory in the users home directory ( a standard
place) then let me know.

This is one of my (teeny weeny little) niggles with wxEuphoria. As a standard
library it
_should_ install in /usr/lib, but it doesn't, it _has_ (afaik) to be installed
in ~/euhporia/bin - for a distributable do you have to make ~/euphoria/bin
directory?

If you are making a distributable, make a script that installs your program,
so you know where its going, either into the users home directory, or into
/usr/bin (etc), and possibly make a directory in the users home directory,
where all the data goes.
 
> Question 3:
> Most programs work when clicked, without a script.
> Why not myprog?
> 
See above, most programs don't know where they are (as far as I can tell),
but they know where the data is for the user, or if they do work, it
doesn't matter ehere they are running from (case in point, the self contained
wxEuphoria demos, as opposed to the demos requiring external data (card) files).

Also, in some cases, even clicking on a program may not be able to find it, if
the paths are not complete. For instance if you have a program in dirctory
~/ttt , but you don't have a path to ~/ttt , then navigating there in (eg)
konqueror, and clicking on it may not produce the desired result (although
this would be VERY strange behaviour), if konqueror is not set up to
execute from the current directory.

Also, (again), if you put a program on the desktop, the current directory
when you click on the desktop icon, is the ./desktop directory in your home
folder. So, I use a script which changes the current directory to the directory
of my program, and THEN executes it. This script is what is pointed too on
the desktop icon. _Most_ other iconed programs on the desktop, don't care
where they are run from, and use the users home directory as a base.

Clearer? Muddier?

Chris

9. Re: wxEuphoria Linux Problem: double clicking freecell executable

• Posted by Bernie Ryan <xotron at bluefrog.com> Aug 19, 2005
• 538 views
• Last edited Aug 20, 2005

irv mullins wrote:

> IOW, if you are in your home directory: /home/jerry, and browse around 
> into /home/jerry/somefolder and click on someprog.eu, the logged 
> in directory is *still* /home/jerry. So the program looks there 
> for any graphics, ini, or other files it needs to use. It won't 
> find them. Changing or setting path in your environment won't help.
> 
> I (finally) solved that problem in EuGTK. Look there for the answer.
> It's a matter of parsing the command line. You can easily add this 
> to your programs. If you are running someone else's bound pgm, you 
> are SOL.
> 

Irv:

  Can't you tell exu to always look in the current directory.
  by adding the current directory symbol ./ in either
  the profile EUDIR or EUINC exports ?  


Bernie

My files in archive:
w32engin.ew mixedlib.e eu_engin.e win32eru.exw

Can be downloaded here:
http://www.rapideuphoria.com/cgi-bin/asearch.exu?dos=on&win=on&lnx=on&gen=on&keywords=bernie+ryan

11. Re: wxEuphoria Linux Problem: double clicking freecell executable

• Posted by Chris Burch <chriscrylex at aol.com> Aug 19, 2005
• 529 views
• Last edited Aug 20, 2005

Alexander Toresson wrote:
> 
> Bernie Ryan wrote:
> >
> > irv mullins wrote:
> >
> > > IOW, if you are in your home directory: /home/jerry, and browse around
> > > into /home/jerry/somefolder and click on someprog.eu, the logged
> > > in directory is *still* /home/jerry. So the program looks there
> > > for any graphics, ini, or other files it needs to use. It won't
> > > find them. Changing or setting path in your environment won't help.
> > >
> > > I (finally) solved that problem in EuGTK. Look there for the answer.
> > > It's a matter of parsing the command line. You can easily add this
> > > to your programs. If you are running someone else's bound pgm, you
> > > are SOL.
> > >
> >
> > Irv:
> >
> >   Can't you tell exu to always look in the current directory.
> >   by adding the current directory symbol ./ in either
> >   the profile EUDIR or EUINC exports ?
> >
> >
> > Bernie
> >
> 
> The problem is that the current directory aren't set correctly by the
> file manager. That means that ./ will still look in the current
> directory which was /home/jerry in the example above.
> 
> Regards, Alexander Toresson
> 
> 
Thats right, thats why a 2 line script solves all your problems, no matter who
wrote the program

Chris


http://members.aol.com/chriscrylex/euphoria.htm
http://uboard.proboards32.com/
http://members.aol.com/chriscrylex/EUSQLite/eusql.html

13. Re: wxEuphoria Linux Problem: double clicking freecell executable

• Posted by Kenneth Rhodes <ken_rhodes30436 at yahoo.com> Aug 20, 2005
• 564 views

irv mullins wrote:
> 
> Jerry Story wrote:
> 
> > I now understand better what a script is, but
> > how it solves the problem is still as clear as mud to me.
> > 
> > Question 1:
> > Do you mean that I should make a script and click on it?
> > 
> > Question 2:
> > If myprog doesn't know how to find itself, how does the script
> > know how to find itself?
> > 
> > Question 3:
> > Most programs work when clicked, without a script.
> > Why not myprog?
> 
> A script is not necessary.
> The reason your program fails to execute properly when clicked 
> from within Konqueror is because Konqueror does not change your 
> logged-in directory to follow you as you click around. 
> 
> IOW, if you are in your home directory: /home/jerry, and browse around 
> into /home/jerry/somefolder and click on someprog.eu, the logged 
> in directory is *still* /home/jerry. So the program looks there 
> for any graphics, ini, or other files it needs to use. It won't 
> find them. Changing or setting path in your environment won't help.
> 
> I (finally) solved that problem in EuGTK. Look there for the answer.

EuGTK seems to have disappeared from the archive...  
is it still available?



> It's a matter of parsing the command line. You can easily add this 
> to your programs. If you are running someone else's bound pgm, you 
> are SOL.
> 
> Regards,
> Irv
> 


Ken Rhodes
SuSE Linux 9.3
100% MicroSoft Free

15. Re: wxEuphoria Linux Problem: double clicking freecell executable

• Posted by Kenneth Rhodes <ken_rhodes30436 at yahoo.com> Aug 20, 2005
• 552 views

Jerry Story wrote:
> 
> Kenneth Rhodes wrote:
> > 
> > EuGTK seems to have disappeared from the archive...  
> > is it still available?
> 
> EuGTK for GTK2 is on freshmeat and on sourceforge.
> I have both EuGTK for GTK1 and EuGTK for GTK2 backed up on both hard drive and
> CD.
> 

Thanks Jerry,

Did Irv's remarks about his EuGTK fix for the Linux current directory path
problem help you?  I'm clueless as to how to search the EuGTK code for the fix -
hmmm guess I could do a guru search for current directory.  Hope Matt can apply
the fix to wxEU.



Ken Rhodes
SuSE Linux 9.3
100% MicroSoft Free

17. Re: wxEuphoria Linux Problem: double clicking freecell executable

• Posted by Pete Lomax <petelomax at blueyonder.co.uk> Aug 20, 2005
• 544 views

On Fri, 19 Aug 2005 22:15:13 -0700, Jerry Story
<guest at RapidEuphoria.com> wrote:

>The problem of making wxEuphoria programs clickable on Linux
>(Windows is no problem)  will be a continuing problem again
>and again until it is solved.
Have you tried something like this:

?1
include wxEuphoria
?2

Regards,
Pete

19. Re: wxEuphoria Linux Problem: double clicking freecell executable

• Posted by irv mullins <irvm at ellijay.com> Aug 20, 2005
• 533 views

Matt Lewis wrote:
> 
> Jerry Story wrote:
> > 
> > There is code in Irv's EuGTK (for GTK1) in main.e that
> > has to do with paths.
> > 
> > I have code that parses the command_line() in the
> > EuGTK version of DMAK and exactly the same code in the
> > wxEuphoria version of DMAK (not yet uploaded).
> > It works in the EuGTK version but nothing happens
> > when I click on the binded wxEuphoria version.
> > Maybe the problem is something entirely different.
> 
> I'll take a look at EuGTK to see what needs to be done.
> 
> Matt Lewis

I believe I just looked at command_line() [1], which will 
be the full path to the executable (even when run by clicking 
an icon in Konqueror).
e.g. /home/jerry/somedir/somepgm.eu
reverse it, find the 'first' slash, remove everthing up to that slash,
   ue.mgpemos/ridemos/yrrej/emoh/
remove everthing up to that slash,
   /ridemos/yrrej/emoh/
and reverse it again, there's your path.
   /home/jerry/somedir/
Now, add the path to any images, etc. which need to be loaded by your 
program. 
   path&'mypic.jpg'

21. Re: wxEuphoria Linux Problem: double clicking freecell executable

• Posted by Robert Craig <rds at RapidEuphoria.com> Aug 20, 2005
• 522 views
• Last edited Aug 21, 2005

Jerry Story wrote:
> Pete Lomax wrote:
> > On Fri, 19 Aug 2005 22:15:13 -0700, Jerry Story
> > <guest at RapidEuphoria.com> wrote:
> > 
> > >The problem of making wxEuphoria programs clickable on Linux
> > >(Windows is no problem)  will be a continuing problem again
> > >and again until it is solved.
> > Have you tried something like this:
> 
> > ?1
> > include wxEuphoria
> > ?2
> > 
> > Regards,
> > Pete
> 
> I tried it just now.
> Nothing happens.

What about:

?1
?getc(0)
include wxEuphoria.e
?2
?getc(0)

Regards,
   Rob Craig
   Rapid Deployment Software
   http://www.RapidEuphoria.com

23. Re: wxEuphoria Linux Problem: double clicking freecell executable

• Posted by Jerry Story <jstory at ocii.com> Aug 20, 2005
• 549 views
• Last edited Aug 21, 2005

Robert Craig wrote:
> 
> Jerry Story wrote:
> > Pete Lomax wrote:
> > > On Fri, 19 Aug 2005 22:15:13 -0700, Jerry Story
> > > <guest at RapidEuphoria.com> wrote:
> > > 
> > > >The problem of making wxEuphoria programs clickable on Linux
> > > >(Windows is no problem)  will be a continuing problem again
> > > >and again until it is solved.
> > > Have you tried something like this:
> > 
> > > ?1
> > > include wxEuphoria
> > > ?2
> > > 
> > > Regards,
> > > Pete
> > 
> > I tried it just now.
> > Nothing happens.
> 
> What about:
> 
> ?1
> ?getc(0)
> include wxEuphoria.e
> ?2
> ?getc(0)
> 
> Regards,
>    Rob Craig
>    Rapid Deployment Software

Still nothing.

When I run it run gentoo on blackbox, I must press return on a terminal,
and then it runs.
When I click on Nautilus, nothing happens.

25. Re: wxEuphoria Linux Problem: double clicking freecell executable

• Posted by Kenneth Rhodes <ken_rhodes30436 at yahoo.com> Aug 20, 2005
• 544 views
• Last edited Aug 21, 2005

Kenneth Rhodes wrote:
> 
> Robert Craig wrote:
> > 
> > Jerry Story wrote:
> > > Pete Lomax wrote:
> > > > On Fri, 19 Aug 2005 22:15:13 -0700, Jerry Story
> > > > <guest at RapidEuphoria.com> wrote:
> > > > 
> > > > >The problem of making wxEuphoria programs clickable on Linux
> > > > >(Windows is no problem)  will be a continuing problem again
> > > > >and again until it is solved.
> > > > Have you tried something like this:
> > > 
> > > > ?1
> > > > include wxEuphoria
> > > > ?2
> > > > 
> > > > Regards,
> > > > Pete
> > > 
> > > I tried it just now.
> > > Nothing happens.
> > 
> > What about:
> > 
> > ?1
> > ?getc(0)
> > include wxEuphoria.e
> > ?2
> > ?getc(0)
> > 
> > Regards,
> >    Rob Craig
> >    Rapid Deployment Software
> >    <a href="http://www.RapidEuphoria.com">http://www.RapidEuphoria.com</a>
> > 
> 
> That works on my system when bound or translated/compiled.
Sorry, this was in error I was using wxIDE not freecell.exw.

> But isn't this one heck
> of a kludge? Lets hope Matt can apply Irv's path fix to the wxEuphoria.e >so
> no one
> will have to worry bout this stuff.
> 
> Is there anyway that this problem can be remedied from within the Euphoria
> Linux interpreter?
> 
> 
> Ken Rhodes
> SuSE Linux 9.3
> 100% MicroSoft Free
> 


Ken Rhodes
SuSE Linux 9.3
100% MicroSoft Free

27. Re: wxEuphoria Linux Problem: double clicking freecell executable

• Posted by Kenneth Rhodes <ken_rhodes30436 at yahoo.com> Aug 25, 2005
• 555 views

Brian Broker wrote:

>So is this a Euphoria programming mailing list or is this a "I can't > >figure
>out how to use Euphoria on *nix" mailing list?

I dare say that less than a hundredth of the total man hours has
gone into the development of the wxEuphoria and EuGTK gui libraries
compared to the amount of time contributed to the development of the
several Windows libraries for Euphoria. And the number of respective
postings on the list specifically regarding Windows probably exceeds 
Linux postings by a factor of at least 500.

> 
> Maybe there should be a EUnixforum?
> 

Why? The problem in question regarded wxEuphoria which is a 
cross platform GUI library. And the fix, if I understand
Irv Mullins post, is a function which would return the current 
"working" directory. Shouldn't this be generic enough to be included
in the Euphoria core distribution?

Shortly after the release of Win32 support for Euphoria I believe
Jiri Babor observed that the list had become dominated by Windows
programming issues and that perhaps there should be a Windows specific
mailing list.

>
> (I'd ignore it all if I didn't find it all so amusing.  :D
> --
> 

Likewise  :)

Ken Rhodes
SuSE Linux 9.3
100% MicroSoft Free