File: classtree

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perl-tk 1:800.025-2
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#!/usr/local/bin/perl -w
use strict;
use Tk;    
use Tk::widgets qw(Tree Menubar);

my $mw = MainWindow->new;
my $mb = $mw->Menubar;
$mb->Menubutton(-text => '~File', -menuitems => [
 [Button => 'E~xit', -command => ['destroy' => $mw]],
 ]);                    

my $cl = $mw->Scrolled('Tree', -width => 60, -height => 40, -separator => '.',-itemtype => 'text');

# do "t/Require.t";
enter_classes($cl,'Tk::','open');

Tk::grid($cl,-sticky => 'nsew');
$mw->gridRowconfigure(0, -weight => 1);
$mw->gridColumnconfigure(0, -weight => 1);

MainLoop;

sub enter_classes
{
 my ($cl,$name,$mode) = @_;
 no strict 'refs';
 if (defined(%{$name}) && $name =~ /^(.*)::$/)
  {
   my $path = $1;
   $path =~ s/::/./g;
   my ($leaf) = $path =~ /(?:^|\.)([^\.]+)$/;
   # print join(' ',$name,$path,$leaf),"\n";  
   $cl->add($path,-text => $leaf);
   foreach my $child (sort keys %$name)
    {
     enter_classes($cl,$name.$child,'close') if $child =~ /::$/;
    }
   foreach my $child (sort keys %$name)
    {                         
     if ($child !~ /::$/ && defined &{$name.$child})
      {
       my $cp = $path.'.'.$child; 
       $cl->add($cp,-text => $child) unless $cl->infoExists($cp);
      }
    }
   $cl->Activate($path,$mode);
  }
}