68 lines
1.4 KiB
Perl
68 lines
1.4 KiB
Perl
#!/usr/local/bin/perl -w
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use strict;
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use Tk;
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use Tk::JPEG;
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use Getopt::Std;
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eval { require Tk::PNG; };
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my $mw = MainWindow->new();
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print "vis=",$mw->visual," d=",$mw->depth,"\n";
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my ($vis) = grep(!/\b8\b/,grep(/truecolor/,$mw->visualsavailable));
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my @args = ();
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if ($vis)
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{
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# print $vis,"\n";
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$mw->destroy;
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$mw = MainWindow->new(-visual => $vis);
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}
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else
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{
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@args = (-palette => '4/4/4');
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}
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# print "vis=",$mw->visual," d=",$mw->depth,' "',join('" "',$mw->visualsavailable),"\"\n";
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my %opt;
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getopts('f:',\%opt);
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if ($opt{'f'})
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{
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push(@args,'-format' => $opt{'f'});
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}
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unless (@ARGV)
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{
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warn "usage $0 [-f format] <imagefile>\n";
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exit 1;
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}
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my $file = shift;
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my $image = $mw->Photo(-file => $file, @args);
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#print join(' ',$image->formats),"\n";
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print "w=",$image->width," h=",$image->height,"\n";
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$mw->Label(-image => $image)->pack(-expand => 1, -fill => 'both');
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$mw->Button(-text => 'Quit', -command => [destroy => $mw])->pack;
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MainLoop;
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__END__
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=head1 NAME
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tkjpeg - simple JPEG viewer using perl/Tk
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=head1 SYNOPSIS
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tkjpeg imagefile.jpg
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=head1 DESCRIPTION
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Very simplistic image viewer that loads JPEG image, (well actually
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anything for which Photo has a handler) and puts it into a
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Label for display.
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It tries to find a fullcolour visual to use if display is deeper than
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8-bit. (On 8-bit it uses a 4/4/4 palette.)
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=head1 AUTHOR
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Nick Ing-Simmons <nick@ing-simmons.net>
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=cut
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