| Subject: | Tk::chooseDirectory -mustexist causes errors in Ubuntu 14.04 |
my $selected = $mw->chooseDirectory(-mustexist => 1, -title => 'Title');
On Ubuntu 14.04 running perl 5.18.2, I get the following error:
---------------------------------------------------------------
Tk::Error: Can't set -mustexist to `1' for Tk::FBox=HASH(0x2278840): Can't set -mustexist to `1' for Tk::IconList=HASH(0x24f0330): unknown option "-mustexist" at /usr/local/lib/perl/5.18.2/Tk/Configure.pm line 45.
at /usr/local/lib/perl/5.18.2/Tk/Derived.pm line 294.
at /usr/local/lib/perl/5.18.2/Tk/Derived.pm line 306.
Tk callback for .fbox.frame
Tk callback for .fbox.frame1
Tk callback for .fbox.frame2
Tk callback for .fbox
Tk callback for .fbox.iconlist
Tk::Derived::configure at /usr/local/lib/perl/5.18.2/Tk/Derived.pm line 306
Tk::Derived::configure at /usr/local/lib/perl/5.18.2/Tk/Derived.pm line 306
Tk::Widget::new at /usr/local/lib/perl/5.18.2/Tk/Widget.pm line 205
Tk::Widget::__ANON__ at /usr/local/lib/perl/5.18.2/Tk/Widget.pm line 256
Tk::DialogWrapper at /usr/local/lib/perl/5.18.2/Tk.pm line 373
Tk::FDialog at /usr/local/lib/perl/5.18.2/Tk.pm line 404
Tk::__ANON__ at /usr/local/lib/perl/5.18.2/Tk.pm line 272
Tk::chooseDirectory at /usr/local/lib/perl/5.18.2/Tk.pm line 353
main::_browse at examples/snippet.pl line 22
Tk callback for .button
Tk::__ANON__ at /usr/local/lib/perl/5.18.2/Tk.pm line 251
Tk::Button::butUp at /usr/local/lib/perl/5.18.2/Tk/Button.pm line 175
<ButtonRelease-1>
(command bound to event)
Use of uninitialized value in string eq at /usr/local/lib/perl/5.18.2/Tk/FBox.pm line 449.
XS_Tk__Callback_Call error:Can't use an undefined value as a subroutine reference at /usr/local/lib/perl/5.18.2/Tk/FBox.pm line 441.
Tk::Error: Can't use an undefined value as a subroutine reference at /usr/local/lib/perl/5.18.2/Tk/FBox.pm line 441.
Tk::FBox::__ANON__ at /usr/local/lib/perl/5.18.2/Tk/FBox.pm line 441
Tk::FBox::Update at /usr/local/lib/perl/5.18.2/Tk/FBox.pm line 450
Tk::After::once at /usr/local/lib/perl/5.18.2/Tk/After.pm line 90
[once,[{},after#13,idle,once,[{},Update]]]
("after" script)
---------------------------------------------------------------
The Tk::FBox is displayed, but the title is missing, and the "Ok" button causes the following to be generated:
---------------------------------------------------------------
Use of uninitialized value in string eq at /usr/local/lib/perl/5.18.2/Tk/FBox.pm line 804.
Use of uninitialized value $arg in substitution (s///) at /usr/local/lib/perl/5.18.2/Tk/FBox.pm line 1037.
Use of uninitialized value $arg in split at /usr/local/lib/perl/5.18.2/Tk/FBox.pm line 1038.
Use of uninitialized value in string eq at /usr/local/lib/perl/5.18.2/Tk/FBox.pm line 449.
XS_Tk__Callback_Call error:Can't use an undefined value as a subroutine reference at /usr/local/lib/perl/5.18.2/Tk/FBox.pm line 441.
Tk::Error: Can't use an undefined value as a subroutine reference at /usr/local/lib/perl/5.18.2/Tk/FBox.pm line 441.
Tk::FBox::__ANON__ at /usr/local/lib/perl/5.18.2/Tk/FBox.pm line 441
Tk::FBox::Update at /usr/local/lib/perl/5.18.2/Tk/FBox.pm line 450
Tk::After::once at /usr/local/lib/perl/5.18.2/Tk/After.pm line 90
[once,[{},after#17,idle,once,[{},Update]]]
("after" script)
-----------------------------------------------
If you leave out the -mustexist option and value, the Tk::FBox works as expected.
I have attached a short script that shows the issue.
| Subject: | tk_chooseDirectory_issue.pl |
#!/usr/bin/perl -w
##----------------------------------------------------------------------------
## :mode=perl:indentSize=2:tabSize=2:noTabs=true:
##----------------------------------------------------------------------------
use strict;
use warnings;
use Tk;
my ($mw, $entry);
##----------------------------------------------------------------------------
## _browse():
##----------------------------------------------------------------------------
sub _browse
{
my $initial_dir = $entry->get;
$initial_dir = qq{UNDEF} unless defined($initial_dir);
print(qq{_browse(): Initial directory is "$initial_dir"\n});
my $selected = $mw->chooseDirectory(
-initialdir => $initial_dir,
-title => qq{Select Directory},
-mustexist => 1, ## Does not work in Ubuntu if this option is provided
);
if ($selected)
{
## Delete current text in Entry widget
$entry->delete(0, qq{end});
## Add selected directory to text in Entry widget
$entry->insert(qq{end}, $selected);
}
}
##----------------------------------------------------------------------------
## MAIN
##----------------------------------------------------------------------------
$mw = MainWindow->new(-title => qq{Snippet});
$mw->Label(-text => qq{Directory:})->pack(-side => qq{left});
$entry = $mw->Entry(-width => 20,)->pack(-side => qq{left});
$mw->Button(-text => qq{Browse}, -command => \&_browse)->pack(-side => qq{left});
MainLoop;
__END__