354 lines
9.0 KiB
Plaintext
Executable File
354 lines
9.0 KiB
Plaintext
Executable File
#!@PERL@
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# gdialog -> zenity conversion wrapper
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#
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# by Mike Newman <mikegtn@gnome.org>
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#
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# This is all, of course, horrible - but it should translate
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# most commond gdialog types to zenity equivalents. It will mostly drop
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# the pointless and unused (even by gdialog!) size arguments
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# but hopefully will translate all the others.
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#
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# For testing purposes, I've used a couple of the nautilus scripts
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# available at http://g-scripts.sourceforge.net - what is sometimes
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# unclear is what is a gdialog/zenity translation problem, and what is
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# a problem with the original script
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my @command = ("zenity"); # the command line we build up to execute
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my $element = ""; # current bit of command line
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my $argn = 0; # counter for walking args
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my $args = $#ARGV + 1; # total number of command line arguments
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my $separator = 0; # set if --separate-output is in use
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# Additon by: Kevin C. Krinke (kck) <kckrinke@opendoorsoftware.com>
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#
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# gdialog itself supports both the X-Windows interface as well as a console
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# interface. Here's a fix to use regular dialog when appropriate.
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# This should probably be a more advanced test of some sort, but I don't know
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# of any other easy way of detecting and X-Windows environment. If someone does
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# know better, please let me know. So for now this works: "no DISPLAY; no X".
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unless (defined $ENV{'DISPLAY'} && length($ENV{'DISPLAY'})) {
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# reset the command string
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@command = ();
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# examine all the available/default paths
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my $PATHS = ($ENV{'PATH'}||'/bin:/usr/bin:/usr/local/bin:/opt/bin');
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BIN: foreach my $PATH (split(/\:/,$PATHS)) {
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if (-x $PATH."/gdialog.real") {
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# Some GNU/Linux distributions divert binaries when
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# other packages are installed. If this exists, chances
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# are it's the real gdialog and not the Zenity wrapper.
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# gdialog has full support for the Console medium and
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# as such is the preference over using the "regular"
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# dialog interface.
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@command = ($PATH."/gdialog.real");
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last BIN;
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} elsif (-x $PATH."/dialog") {
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# change the command and skip ahead!
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@command = ($PATH."/dialog");
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last BIN;
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}
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}
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unless (@command) {
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# we didn't find the dialog binary, exit(254) with a message
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# to STDERR.
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print STDERR "missing DISPLAY and a console dialog could".
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" not be found.\n";
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# exit code 254 is used because 255, 1, 2, 3 are used by Zenity
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# and cDialog. This error, is a very _bad_ error so it's semi-
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# non-standard at 254.
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exit(254);
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}
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# all is well if we've made it this far
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# so join the arguments double-quoting things so that proper shell
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# notation is saved.
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push @command, @ARGV;
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# and fork the process
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exec(@command);
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}
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# Got DISPLAY, has X continue as normal...
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# End Addtition by: KCK
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# this just loads the current arg into $element
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sub get_arg () {
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$element = $ARGV[$argn];
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}
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# walk the command line
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ARG: while ($argn < $args) {
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get_arg;
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# Informational stuff
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if ($element eq "--help" || $element eq "--about") {
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print ( "gdialog is a compatibility wrapper around zenity, " .
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"provided to hopefully\nallow older scripts to run. " .
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"If you are reading this message, you should\n" .
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"probably be using zenity directly\n\n" .
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"type: 'zenity --help' or 'man zenity' for more information\n");
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exit (1);
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}
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# Section 1 : Args which gdialog expects BEFORE box options
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# --clear, --backtitle have no obvious effect - ignored
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if ($element eq "--title") {
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# --title argument is almost analogous in gdialog and
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# zenity - so pass it almost entirely as is
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$argn++;
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get_arg;
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push @command, "--title=$element";
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# keep processing args
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$argn++;
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next ARG;
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}
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if ($element eq "--separate-output") {
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# set the flag to pring list output line by line
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$separator = 1;
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# keep processing args
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$argn++;
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next ARG;
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}
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# Section 2 : Box Options and subsequent args
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if ($element eq "--msgbox" || $element eq "--infobox") {
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# This bit is common to almost all of the dialogs
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# the arg following the dialog type in gdialog is usually
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# equivalent to zenity's --text arg.
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$argn++;
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get_arg;
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push @command, "--info", "--text=$element";
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# this also happens a lot - gdialog accepted size args
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# for dialog compatability - which it pretty much ignored
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# and we will do the same
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$argn+=2;
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last ARG;
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}
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if ($element eq "--yesno") {
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# this will silently ignore the gdialog option to set
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# the default button in question dialogs - which is
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# highly hig-norant anyway!
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$argn++;
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get_arg;
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push @command, "--question", "--text=$element";
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last ARG;
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}
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if ($element eq "--inputbox") {
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$argn++;
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get_arg;
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push @command, "--entry", "--text=$element";
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# ignore size elements and maybe there is some
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# default text to initialize the entry with?
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$argn+=3;
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get_arg;
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push @command, "--entry-text=$element";
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last ARG;
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}
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if ($element eq "--textbox") {
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push @command, "--text-info";
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# the arg immediately following the dialog type in
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# gdialog is the filename, so pass this to zenity
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$argn++;
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get_arg;
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push @command, "--filename=$element";
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# width and height matter for this one, so get them
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# and apply the same multipliers as used in gdialog
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$argn++;
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get_arg;
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$element = $element * 7;
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push @command, "--height=$element";
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$argn++;
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get_arg;
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$element = $element * 8;
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push @command, "--width=$element";
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last ARG;
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}
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if ($element eq "--checklist" || $element eq "--radiolist") {
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$list=$element;
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$argn++;
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get_arg;
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# Conveniently, zenity and gdialog use the same names
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# for list types, so pass this to zenity intact along with
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# an untitled column for the check or radio buttons
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# and the 'text' arg as a second column header
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push @command, "--list", $list, "--column=''", "--column=''", "--column", $element;
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# should output be line by line?
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if ($separator) {
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push @command, "--separator=\n";
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}
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# Skip to the first 'item' arg of the list content
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# bypassing height, width and list-height
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# from here args run [tag] [item] [status] ...
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$argn += 4;
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# Loop over the remainder of the commandline
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# discarding the 'status' args of each item
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# and using the 'item' for display in our second column
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# also pass a fake NULL argument since zenity can't set
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# the status of a row like gdialog can
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while ($argn < $args) {
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get_arg;
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push @command, "NULL", $element;
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$argn += 1;
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get_arg;
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push @command, $element;
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$argn += 2;
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}
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last ARG;
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}
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if ($element eq "--menu") {
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$list=$element;
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$argn++;
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get_arg;
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# a gdialog --menu is just a two column zenity --list
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# Leave the first column blank (not provided)
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# Use the 'text' arg as a second column header
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# FIXME: or should it be the dialog text, or both?
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push @command, "--list", "--column", "", "--column", $element;
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# Skip to the first 'item' arg of the list content
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# after using height, width and bypassing list-height
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# from here args run [tag] [item] ...
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$argn += 1;
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get_arg;
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# Height and width in characters to be displayed, so adjust
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# cdialog uses 6 height for non-list, zenity uses ~24 pixels
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# per list entry (default font), and 103 pixels for non-list
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# This appears to be almost exact
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$element = $element*24 - 35;
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push @command, "--height", $element;
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$argn += 1;
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get_arg;
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# cdialog uses 6 width for non-list, zenity uses ~7 pixels
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# per character (default font), and 22 pixels for non-list
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# This is not exact, but close enough
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$element = $element*7 - 20;
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push @command, "--width", $element;
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$argn += 2;
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# Loop over the remainder of the commandline
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# keeping 'tag' args of each item (required to return)
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# and using the 'item' for display in our second column
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while ($argn < $args) {
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get_arg;
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push @command, $element;
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$argn += 1;
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}
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last ARG;
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}
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if ($element eq "--gauge") {
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$argn++;
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get_arg;
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push @command, "--progress", "--text=$element";
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# discard the size args as usually, and see if
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# a percentage value was supplied to initialize the
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# dialog
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$argn += 3;
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get_arg;
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if ($element) {
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push @command, "--percentage=$element";
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}
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last ARG;
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}
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$argn++;
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}
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# save STDOUT and STDERR
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open(ORG_STDOUT, ">&STDOUT");
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open(ORG_STDERR, ">&STDERR");
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# redirect STDERR to /dev/null (GTK messages ie:
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# (zenity:637): Gtk-WARNING **: Unable to locate theme engine in module_path: "mist",)
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open(STDERR, ">/dev/null");
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# redirect STDOUT to STDERR (gdialog direct output to STDERR by default)
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open(STDOUT, ">&ORG_STDERR");
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# execute the constructed zenity command line
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# perl doc: The return value of system() is the exit status of the
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#program as returned by the wait() call. To get the actual exit value
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# divide by 256.
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my $return = system(@command)/256;
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# restore STDOUT and STDERR
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open(STDOUT, ">&ORG_STDOUT");
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open(STDERR, ">&ORG_STDERR");
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close(ORG_STDOUT);
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close(ORG_STDERR);
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exit $return;
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