Re: Perl Tk module; optional select to result presentation

[tybalt89]

Something like this?

#!/usr/bin/perl

use strict; # https://perlmonks.org/?node_id=11163804
use warnings;
use Tk;
use Data::Dump qw( pp );

my %IdxToNickName = qw( a one b two c three );
my %IdxToNickNameSel;

my $main = MainWindow->new;

# Set up frames to contain all the pids (for selection)
$main->Label(-text => 'Below are the CheckButtons', -bg => 'green',
  )->pack(-fill => 'x');
my $frame_pids;
$frame_pids = $main->Frame(-borderwidth => 2, -relief => 'groove');
$frame_pids->pack;

$main->Label(-text => 'Below is a Text widget', -bg => 'green',
  )->pack(-fill => 'x');
my $edit = $main->Text()->pack;

$main->Label(-text => 'Below is a grid of Labels', -bg => 'green',
  )->pack(-fill => 'x');
my $labelframe = $main->Frame->pack;

my @sortedKeys = ( sort keys %IdxToNickName );
my $row = 1;
for my $k (@sortedKeys) {
   my $pid_nickname = $IdxToNickName{$k};

   my $cb = $frame_pids->Checkbutton(
      -text     => sprintf("%-15s",$pid_nickname),
                   # courier and -15 implies fixed length left justifi
+ed
      -variable => \$IdxToNickNameSel{$k},
                   # this is a hash for the selection result (so other
+s can access)
      -font     => ['courier', 10, 'bold'],
                   #       and a font size
      -command => \&showtext,
      );

   $IdxToNickNameSel{$k} = 0;        # Initialise the selection to 0

   $cb->pack(-side => 'top');        # Pack the cb according to left c
+riteria
   $labelframe->Label(-text => $IdxToNickName{$k},
    )->grid(-row => $row, -column => 1, -sticky => 'e');
   $labelframe->Label(-textvariable => \$IdxToNickNameSel{$k},
    )->grid(-row => $row, -column => 2);
   $row++
}
$main->Button(-text => 'Exit', -command => sub{$main->destroy},
  -bg => 'red', -fg => 'white',
  )->pack(-fill => 'x');

showtext();
MainLoop;

sub showtext { $edit->Contents( pp \%IdxToNickNameSel ) }