Re: Using drag and drop to set where data should be saved

Jim Lesurf <[email protected]> wrote:

> In article <[email protected]>, Stephen
> Watson <[email protected]> wrote:
> > Jim Lesurf <[email protected]> wrote:
> 
> > > In article <[email protected]>,
> > > Stephen Watson <[email protected]> wrote:
> > > > Jim Lesurf <[email protected]> wrote:
> >
> > to
> > > use it open an xterm that - I assume - is trying to build or compile
> > > the relevant support. But this fails.
> > > 
> > > I get a lost list of 'checking' items. Some seem to be looking for f77
> > > (i.e. fortran... eh??) and report a 'no'. Then it gets to saying I
> > > don't have GCC 4... This also says 'no'.
> > > 
> > > I then get told that pkg-config is missing and I can get this from the
> > > development downloads from gtk.org. Then the process fails to
continue.
> 
> > That should have been installed with the gtk-devel packages with your
> > distro.  If it's working then pkg-config --modversion gtk+-2.0 will
> > print your version of GTK.
> 
> It gives me "The program 'pkg-config' is not currently installed" and
tells
> me to use sudo apt-get install to get it.

Well, that would be your answer then.

> [snip bits to ignore]
> 
> > > Then, I've visited gtk.org but can't find what I am supposed to
> > > download
> > or
> > > install. I've tried using search phrases on that site (and with
> > > synaptic) like 'pkg-config' and variations on gtk+. But can't identify
> > > what I'd
> > need.
> > > 
> > > I think I do have gtk+ on the machine since I think other programs use
> > > it. So I guess what is missing is some specific aspects of the
> > > development support. But I am currently puzzled.
> 
> > Are you installing GTK from source?  If not, which distro are you using
> > as pkg-config must be a dependency of gtk-devel (and most of the other
> > -devel packages).  If you are installing from source, please reconsider.
> >  It's not for the faint of heart, or the inexperienced.
> 
> I'm not installing from source. I am using Xubuntu 9.04. I've assumed GTK+
> was already installed since I assumed some of the apps I've been using
> depend on it. There is a gtk-2.0 directory in my user ./config directory.
> And items like a directory /usr/lib/gtk-2.0.

Distros tend to split libraries into two packages: Y and Y-devel.  Y
contains the shared libraries and some other files, Y-devel the header files
and static libraries.  You only need pkg-config if you're using the Y-devel
package because pkg-config is used to locate the header files and libraries.
 You probably have the gtk package installed, but not gtk-devel (or whatever
Xubuntu calls them).

> > If you have been developing with GTK already, how have you managed to
> > link it in?
> 
> I haven't done any gtk developing. So I assume the problem is that I lack
> pkg-config for that reason.
> 
> However when I either click on the directory for ROX-Clib, or use the
> command for AppRun detailed in the notes I get what I reported which seems
> to need pkg-config. So I assume this means I need to install pkg-config.
My
> concern at that point was the other 'no' items as I wondered if there were
> loads of other things I'd need as well.
> 
> > > Also, whilst reporting, can I please check the following? Am I correct
> > > to think that a user would not need to install ROX-CLib to be able to
> > > use
> > what
> > > I compiled using it? Or does using it mean the program I write will
> > > only work OK for ROX users who have (unlike myself at this point! :-)
> > > ) successfully installed ROX-CLib? My worry here is that although I
> > > want if
> > I
> > > can to make the apps easier to use, I want to avoid other barriers to
> > > use. At present non-ROX users can exec my AppRun followed by any
> > > relevant input filenames.
> 
> > It acts like a shared library by default, so the end users must have it
> > installed.  You could try linking to the static library, then they
> > wouldn't need to install ROX-CLib, but I've not tried that to see if it
> > works.
> 
> Given this I am wondering if it might be simpler for me to revert to my
> 'Plan A'. This would be that I found out how to write a simple AppRun in
> Python that
> 
> A) detected when the app icon was clicked or an input file was dropped on
> it.
> 
> B) Gave me a savebox to drag and drop so I could use that to place and
name
> the output file.
> 
> C) then passed that name (and the name of the input file) to the
executable
> compiled 'C' to recover the names and do the actual processing, and then
> save the file contents.
> 
> I assume that would then work with the normal ROX desktops without user
> needing ROX-Clib? 

They would need ROX-Lib instead.

-- 
Stephen Watson     http://www.kerofin.demon.co.uk/
If you read this on a mailing list, send any reply back to the list and not
to me.  Not even CC.
Stranded here on planet earth / It's not much but it could be worse 

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