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|
@rem = '--*-Perl-*--
@echo off
if "%OS%" == "Windows_NT" goto WinNT
perl -x -S "%0" %1 %2 %3 %4 %5 %6 %7 %8 %9
goto endofperl
:WinNT
perl -x -S %0 %*
if NOT "%COMSPEC%" == "%SystemRoot%\system32\cmd.exe" goto endofperl
if %errorlevel% == 9009 echo You do not have Perl in your PATH.
if errorlevel 1 goto script_failed_so_exit_with_non_zero_val 2>nul
goto endofperl
@rem ';
#!/usr/local/bin/perl -w
#line 15
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
__END__
:endofperl
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