/usr/bin/tkjpeg is in perl-tk 1:804.031-1build1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 | #!/usr/bin/perl -w
eval 'exec /usr/bin/perl -w -S $0 ${1+"$@"}'
if 0; # not running under some shell
use strict;
use Tk;
use Tk::JPEG;
use Getopt::Std;
eval { require Tk::PNG; };
my $mw = MainWindow->new();
print "vis=",$mw->visual," d=",$mw->depth,"\n";
my ($vis) = grep(!/\b8\b/,grep(/truecolor/,$mw->visualsavailable));
my @args = ();
if ($vis)
{
# print $vis,"\n";
$mw->destroy;
$mw = MainWindow->new(-visual => $vis);
}
else
{
@args = (-palette => '4/4/4');
}
# print "vis=",$mw->visual," d=",$mw->depth,' "',join('" "',$mw->visualsavailable),"\"\n";
my %opt;
getopts('f:',\%opt);
if ($opt{'f'})
{
push(@args,'-format' => $opt{'f'});
}
unless (@ARGV)
{
warn "usage $0 [-f format] <imagefile>\n";
exit 1;
}
my $file = shift;
my $image = $mw->Photo(-file => $file, @args);
#print join(' ',$image->formats),"\n";
print "w=",$image->width," h=",$image->height,"\n";
$mw->Label(-image => $image)->pack(-expand => 1, -fill => 'both');
$mw->Button(-text => 'Quit', -command => [destroy => $mw])->pack;
MainLoop;
__END__
=head1 NAME
tkjpeg - simple JPEG viewer using perl/Tk
=head1 SYNOPSIS
tkjpeg imagefile.jpg
=head1 DESCRIPTION
Very simplistic image viewer that loads JPEG image, (well actually
anything for which Photo has a handler) and puts it into a
Label for display.
It tries to find a fullcolour visual to use if display is deeper than
8-bit. (On 8-bit it uses a 4/4/4 palette.)
=head1 AUTHOR
Nick Ing-Simmons <nick@ing-simmons.net>
=cut
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