Re: [LINUX5250] x5250 now supports copy/paste

[Scott Klement <tn5250@xxxxxxxxxxxxxxxx>]

> I found out what is happening.  Gnome forces all applications that have
> the standard X foreground and background resources to be like this (at
> least on my slackware):
>
> *background:    #e2e2de
> *foreground:    #000000

Yes, that appears to be the case.  When I run it under twm, I do not have
these resources set, but under Gnome, I do.  (I'm running 2.6)

> This I found out by running 'xrdb -query'.  Most likely this is a result
> of Gnome putting a theme on everything.  So chances are that x5250 will
> have the same foreground and background settings as your xterm unless you
> have xterm-specific settings in your .Xdefaults.  I didn't discover this
> until now since I don't use Gnome.

No, my xterm doesn't have these settings... Just x5250...  I don't know if
that really matters though...


> So now I'm left in a quandry.  If I follow the traditional X conventions
> then Gnome users will be unhappy about the colors.  Really, the if the
> foreground resource is set, it should control green, red, yellow, blue,
> turquoise, and white - i.e. make them all them same color.  That is how a
> traditional X app would work.  I made it so that setting the colors
> explicitly would trump the foreground and background resources, which
> isn't the way things would normally work.

But I think for a 5250 application, it's the right choice.  I think that
users would be unhappy otherwise.


> If I ignore the foreground and background resources it ceases to follow
> traditional X methods. Personally, I would prefer that Gnome didn't set
> a global foreground and background setting, but that ain't gonna fix
> nothin' :)

Shrug... I'd prefer that RedHat/Fedora didn't break just about everything
with every release.  I'd prefer that autoconf/automake/libtool releases
were backward compatible so that I don't have to maintain 3 different ones
on my system in order to build things.

What we prefer is largely irrelevant. :)



> So I can either remove the foreground and background resources (I don't
> like this option very much) or I can ship some reasonable resource files
> with x5250 (I like this better but proper installation may be problematic
> for some users).  Similar to the way that tn5250 install an XTerm resource
> file, x5250 probably needs an X5250 resource file in
> /usr/X11/app-defaults.

I agree that this is a good solution.  We'll have to make autoconf install
it in the right place, though...

On my system, I have an /etc/X11/app-defaults directory, but it does not
work.  If I put the X5250 resource file in that directory, the settings
are ignored.

On my system, there's a /usr/X11R6/lib/X11/app-defaults directory.  If I
put the settings there, they're also ignored -- though this appears to be
where all of the other programs have their defaults set.

The reason for this appears to be that you have /usr/lib/X11/app-defaults
HARD-CODED into resources.c.  If I change that code to point to
/usr/X11R6/lib/X11/app-defaults, the X5250 file DOES work.

        So, if we can get autoconf to find the correct directory, we need to 
make
sure that it also sets it in resources.c


The following code for configure.ac appears in the Xscreensaver package.
Seems inordinately complicated, but I guess we could do the same thing.
Unless someone knows of a better way??  (Carey?)


# Try and find the app-defaults directory.
# It sucks that autoconf doesn't do this already...
#
AC_DEFUN(AC_PATH_X_APP_DEFAULTS_XMKMF,[
  rm -fr conftestdir
  if mkdir conftestdir; then
    cd conftestdir 2>/dev/null
    # Make sure to not put "make" in the Imakefile rules, since we grep it out.
    cat > Imakefile <<'EOF'
acfindx:
        @echo 'ac_x_app_defaults="${XAPPLOADDIR}"'
EOF
    if (xmkmf) >/dev/null 2>&1 && test -f Makefile; then
      # GNU make sometimes prints "make[1]: Entering...", which'd confuse us.
      eval `${MAKE-make} acfindx 2>/dev/null | grep -v make`
    fi
    cd .. 2>/dev/null
    rm -fr conftestdir
  fi])

AC_DEFUN(AC_PATH_X_APP_DEFAULTS_DIRECT,[
  # Look for the directory under a standard set of common directories.
  # Check X11 before X11Rn because it's often a symlink to the current release.
  for ac_dir in                                 \
    /usr/X11/lib/app-defaults                   \
    /usr/X11R6/lib/app-defaults                 \
    /usr/X11R6/lib/X11/app-defaults             \
    /usr/X11R5/lib/app-defaults                 \
    /usr/X11R5/lib/X11/app-defaults             \
    /usr/X11R4/lib/app-defaults                 \
    /usr/X11R4/lib/X11/app-defaults             \
                                                \
    /usr/lib/X11/app-defaults                   \
    /usr/lib/X11R6/app-defaults                 \
    /usr/lib/X11R5/app-defaults                 \
    /usr/lib/X11R4/app-defaults                 \
                                                \
    /usr/local/X11/lib/app-defaults             \
    /usr/local/X11R6/lib/app-defaults           \
    /usr/local/X11R5/lib/app-defaults           \
    /usr/local/X11R4/lib/app-defaults           \
                                                \
    /usr/local/lib/X11/app-defaults             \
    /usr/local/lib/X11R6/app-defaults           \
    /usr/local/lib/X11R6/X11/app-defaults       \
    /usr/local/lib/X11R5/app-defaults           \
    /usr/local/lib/X11R5/X11/app-defaults       \
    /usr/local/lib/X11R4/app-defaults           \
    /usr/local/lib/X11R4/X11/app-defaults       \
                                                \
    /usr/X386/lib/X11/app-defaults              \
    /usr/x386/lib/X11/app-defaults              \
    /usr/XFree86/lib/X11/app-defaults           \
                                                \
    /usr/lib/X11/app-defaults                   \
    /usr/local/lib/X11/app-defaults             \
    /usr/unsupported/lib/X11/app-defaults       \
    /usr/athena/lib/X11/app-defaults            \
    /usr/local/x11r5/lib/X11/app-defaults       \
    /usr/lpp/Xamples/lib/X11/app-defaults       \
    /lib/usr/lib/X11/app-defaults               \
                                                \
    /usr/openwin/lib/app-defaults               \
    /usr/openwin/lib/X11/app-defaults           \
    /usr/openwin/share/lib/app-defaults         \
    /usr/openwin/share/lib/X11/app-defaults     \
                                                \
    /X11R6/lib/app-defaults                     \
    /X11R5/lib/app-defaults                     \
    /X11R4/lib/app-defaults                     \
    ; \
  do
    if test -d "$ac_dir"; then
      ac_x_app_defaults=$ac_dir
      break
    fi
  done
])

AC_DEFUN(AC_PATH_X_APP_DEFAULTS,
  [AC_REQUIRE_CPP()
    AC_CACHE_CHECK([for X app-defaults directory], ac_cv_x_app_defaults,
     [AC_PATH_X_APP_DEFAULTS_XMKMF
      if test x"$ac_x_app_defaults" = x; then
        AC_PATH_X_APP_DEFAULTS_DIRECT
      fi
      if test x"$ac_x_app_defaults" = x; then
        ac_cv_x_app_defaults="/usr/lib/X11/app-defaults"
      else
        # Record where we found app-defaults for the cache.
        ac_cv_x_app_defaults="$ac_x_app_defaults"
      fi])
    eval ac_x_app_defaults="$ac_cv_x_app_defaults"])