sudo yum install ncurses-devel swig

tar xzf /path/to/stfl-0.24.tar.gz
cd stfl-0.24

# Modify Makefile and comment out the SWIG lines

#ifeq ($(FOUND_SWIG)$(FOUND_PERL5),11)
#include perl5/Makefile.snippet
#endif

#ifeq ($(FOUND_SWIG)$(FOUND_PYTHON),11)
#include python/Makefile.snippet
#endif

#ifeq ($(FOUND_SWIG)$(FOUND_RUBY),11)
#include ruby/Makefile.snippet
#endif

sudo make install

# Finally, build the Perl module

cd perl5

swig -Wall -perl stfl.i
perl Makefile.PL
sudo make install
 

##</code><code>##

**
* example.stfl: STFL layout for example1.pl and example2.pl.
**

vbox
  hbox
    .expand:0
    @style_normal:bg=yellow,fg=black

    label
      text:'Little STFL Program'
    label["label 1"]
      text["text 1"]:"10000"
    label["label 2"]
      text["text 2"]:"20000"
    label["label 3"]
      text["text 3"]:"30000"

  table
    .expand:0
    @input#style_focus:bg=blue,fg=white,attr=bold
    @input#style_normal:bg=blue,fg=black
    @input#.border:rtb

    @L#style_normal:fg=red
    @L#.expand:0
    @L#.border:ltb
    @L#.spacer:r

    label#L
      text:'Field A:'
    input
      .colspan:3
      text[value_a]:'foo'
    tablebr
    label#L
      text:'Field B:'
    input
      text[value_b]:'bar'
    label#L
      text:'Field C:'
    input
      text[value_c]:'baz'

  label
    .expand:v .tie:bl
    text[helpmsg]:''


##</code><code>##

#!/usr/bin/env perl

use strict;
use warnings;

use stfl;
use MCE::Hobo 1.831;
use MCE::Shared;
use Time::HiRes qw/sleep/;

my $count1 = MCE::Shared->scalar(10000);
my $count2 = MCE::Shared->scalar(20000);
my $count3 = MCE::Shared->scalar(30000);

my $layout; {
    open my $fh, "<", "example.stfl"
        or die "open error 'example.stfl': $!";

    local $/; $layout = <$fh>;
}

my $f = stfl::create($layout);
my $s = 0;

# MCE::Hobo 1.832 and later releases will set posix_exit
# automatically when present, $INC{'stfl.pm'}.

MCE::Hobo->init( posix_exit => 1 );

sub bg_start {
    unless ($s) {
        mce_async { sleep(0.9), $count1->incr() while 1 };
        mce_async { sleep(0.6), $count2->incr() while 1 };
        mce_async { sleep(0.3), $count3->incr() while 1 };
        $s = 1;
    }
}

sub bg_stop {
    if ($s) {
        $_->exit()->join() for MCE::Hobo->list();
        $s = 0;
    }
}

$f->set('helpmsg', '[ ESC = exit | F1 = start | F2 = stop ]');

bg_start();

while (1) {
    my $event = $f->run(50);

    if ($s) {
        # must stringify in case numeric value
        $f->set('text 1', ''.$count1->get());
        $f->set('text 2', ''.$count2->get());
        $f->set('text 3', ''.$count3->get());
    }

    next unless (defined $event);

    bg_start() if $event eq 'F1';
    bg_stop()  if $event eq 'F2';

    last       if $event eq 'ESC';
}

bg_stop();


##</code><code>##

#!/usr/bin/env perl

use strict;
use warnings;

use stfl;
use MCE::Hobo 1.831;
use MCE::Shared;
use Time::HiRes qw/sleep/;

my $q = MCE::Shared->queue();

my $layout; {
    open my $fh, "<", "example.stfl"
        or die "open error 'example.stfl': $!";

    local $/; $layout = <$fh>;
}

my $f = stfl::create($layout);
my $s = 0;

# MCE::Hobo 1.832 and later releases will set posix_exit
# automatically when present, $INC{'stfl.pm'}.

MCE::Hobo->init( posix_exit => 1 );

mce_async {
    my $c = 10000;
    sleep(0.9), $q->enqueue([ 'text 1', ++$c ]) while 1;
};
mce_async {
    my $c = 20000;
    sleep(0.6), $q->enqueue([ 'text 2', ++$c ]) while 1;
};
mce_async {
    my $c = 30000;
    sleep(0.3), $q->enqueue([ 'text 3', ++$c ]) while 1;
};

$f->set('helpmsg', '[ ESC = exit ]');

while (1) {
    my $event = $f->run(50);

    foreach my $ret ($q->dequeue_nb(3)) {
        # must stringify in case numeric value
        $f->set($ret->[0], ''.$ret->[1]);
    }

    next unless (defined $event);
    last if $event eq "ESC";
}

$_->exit()->join() for MCE::Hobo->list();