#!/usr/bin/perl
#
# Copyright (C) 2004 by Mandrakesoft aginies _ateuh_ mandrakesoft.com
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.

# Quick configuration of PXE menu parameters
# release 0.5
# use with care developement release....
# thx R1 for test and some debug

use lib qw(/usr/lib/libDrakX);
use standalone;
use strict;
use common;
use MDK::Common;
use ugtk2 qw(:ask :helpers :wrappers :create :dialogs);


use constant FALSE => 0;
use constant TRUE => 1;

# ie of entry menu in PXE:
#label linux
#        KERNEL images/vmlinuz
#        APPEND initrd=images/all.rdz automatic=method:http,interface:eth0,network:dhcp,server:10.0.1.33,directory:/install/ ramdisk_size=64000 root=/dev/ram3 rw vga=788 display=:0

my $conf = "/var/lib/tftpboot/X86PC/linux/pxelinux.cfg/default";
#my $conf = "/tmp/tr";

my $help = "
PXE Label: the name displayed in PXE menu (a word/number)
Server:    IP address of server, which contains installation directory
Kernel:    memdisk or vmlinuz
Initrd:    network boot image (network.img ) or all.rdz
Interface: network interface used for the installation process
Network:   DHCP or an IP address
Directory: full path to MDK install server directory
Method:    installation method: choose NFS or HTTP
Ramsize:   ramsize parameter on boot disk
Display:   export display on another computer (ie: 10.0.1.33:0)
VGA:       if you encounter any problem with VGA, please adjust
";

my $date = chomp_(`date +%d-%m-20%y`);

if (!-f $conf) {
  err_dialog("Error !", "missing $conf\n\nPlease install pxe package.") and die;
} else {
  cp_af($conf, "$conf-$date");
}

my @listpxe;
my @list_method = qw(nfs http);
my @list_ram = qw(48000 32000 64000 1280000);
my @list_vga = qw(788 normal 785 791 792 text);
my @list_eth = qw(eth0 eth1 eth2);

use constant COLUMN_LABEL => 0;
use constant COLUMN_INFO => 1;
use constant COLUMN_KERNEL => 2;
use constant COLUMN_INITRD => 3;
use constant COLUMN_AUTOMATIC => 4;
use constant COLUMN_INTERFACE => 5;
use constant COLUMN_NETWORK => 6;
use constant COLUMN_SERVER => 7;
use constant COLUMN_DIRECTORY => 8;
use constant COLUMN_RAMDISK => 9;
use constant COLUMN_VGA => 10;
use constant COLUMN_DISPLAY => 11;
use constant COLUMN_OPTION => 12;
use constant NUM_COLUMNS => 13;


sub get_items() {
  my $info; my $label; my $kernel; my $initrd;
  foreach (cat_($conf)) {
    if (any { /^label/ } cat_($conf)) {
      if (/^label/) { ($label) = /^label\s(.*)/ }
      if (/KERNEL/) { ($kernel) = /KERNEL\s(.*)/ }
      my ($initrd, $automatic, $interface, $network, $server, $directory, $ramdisk, $vga, $display) = m!\s*APPEND\sinitrd=(.*?rdz)\s\bautomatic=method\b:(nfs|http),interface:(eth0|eth1|eth2),network:(dhcp|10.0.1.33),server:(.*?),directory:(.*?)\s\bramdisk_size\b=(.*?)\sroot=/dev/ram3\srw\svga=(.*?)\sdisplay=(.*?)\s!;
      # in case of parameter not on this order (previous pxe default file)
      $initrd or my ($init) = m!\s*APPEND\s\binitrd\b=(.*?)\s!;
      $ramdisk or my ($ramdis) = m!\bramdisk_size\b=(\d+)\s!;
      $automatic or my ($automati) = m!\bautomatic\b=method:(nfs|http)!;
      $vga or my ($vg) = m!\bvga\b=(.*?)\s!;
      $display or my ($displa) = m!\bdisplay\b=(.*?)\s!;
      $interface or my ($interfac) = m!\binterface\b:(eth0|eth1|eth2)!;
      $network or my ($networ) = m!\bnetwork\b:(dhcp|10.0.1.33)!;
      $server or my ($serve) = m!\bserver\b:(.*?),!;
      $directory or my ($director) = m!\bdirectory\b:(.*?)\s!;
      my $information = "$label $automati";
      my $initall; my $ramdiskall; my $autoall; my $vgaall; my $displayall; my $interfaceall; my $networkall; my $serverall; my $directoryall;
      if ($initrd) { $initall = $initrd } else { $initall = $init }
      if ($ramdisk) { $ramdiskall = $ramdisk } else { $ramdiskall = $ramdis }
      if ($automatic) { $autoall = $automatic } else { $autoall = $automati }
      if ($vga) { $vgaall = $vga } else { $vgaall = $vg }
      if ($display) { $displayall = $display } else { $displayall = $displa }
      if ($interface) { $interfaceall = $interface } else { $interfaceall = $interfac }
      if ($network) { $networkall = $network } else { $networkall = $networ }
      if ($server) { $serverall = $server } else { $serverall = $serve }
      if ($directory) { $directoryall = $directory } else { $directoryall = $director }
      my ($allopt) = m!\s*APPEND\s(.*)!;
      my ($autocomp) = m!\bautomatic\b=(.*?)\s!;
      my ($devram) = m!root=/dev/ram3\srw!;
      my $optionsall = join(' ', grep { ! /$devram/ and ! /initrd=$initall/ and ! /display=$displayall/ and ! /ramdisk_size=$ramdiskall/ and ! /automatic=$autocomp/ and ! /vga=$vgaall/ } split(' ', $allopt));

      if ($label and $kernel and $initall) {
	push @listpxe, {
			label => $label,
			info => $information,
			kernel => $kernel,
			initrd => $initall,
			automatic => $autoall,
			interface => $interfaceall,
			network => $networkall,
			server => $serverall,
			directory => $directoryall,
			ramdisk => $ramdiskall,
			vga => $vgaall,
			display => $displayall,
			option => $optionsall,
		       },;
      }
    }
  }
}

sub list_label_pxe() {
  my @labels;
  foreach (cat_($conf)) {
    my ($label) = /label\s(.*)/;
    $label and push @labels, $label;
  }
  @labels;
}

sub set_new_default {
  my ($default) = @_;
  substInFile {
    s/^DEFAULT.*/DEFAULT $default/;
  } $conf;
}

sub get_default_pxe {
  my ($defaultpxe) = cat_($conf) =~ /DEFAULT\s+(\S+)/;
  return $defaultpxe;
}

sub get_default_prompt() {
  my ($prompt) = cat_($conf) =~ /^PROMPT\s(\d+)/;
  return $prompt;
}

sub get_default_timeout() {
  my ($time) = cat_($conf) =~ /^TIMEOUT\s(\d+)/;
  return $time;
}

sub write_conf_pxe {
  my $default = get_default_pxe;
  my $prompt = get_default_prompt;
  my $time = get_default_timeout;
  output($conf, <<EOF);
# DO NOT EDIT auto_generated by drakpxe2.pl
PROMPT $prompt
DEFAULT $default
DISPLAY messages
TIMEOUT 50

label local
    LOCALBOOT 0
EOF

  foreach my $a (@listpxe) {
    if ($a->{interface}) {
      append_to_file($conf, "
label $a->{label}
      KERNEL $a->{kernel}
      APPEND initrd=$a->{initrd} automatic=method:$a->{automatic},interface:$a->{interface},network:$a->{network},server:$a->{server},directory:$a->{directory} ramdisk_size=$a->{ramdisk} root=/dev/ram3 rw vga=$a->{vga} display=$a->{display}
");
    } else {
      append_to_file($conf, "
label $a->{label}
      KERNEL $a->{kernel}
      APPEND initrd=$a->{initrd}
");
    }
  }
}

sub create_model {
  get_items();
  my $model = Gtk2::ListStore->new(("Glib::String") x13);
  foreach my $a (@listpxe) {
    my $iter = $model->append;
    $model->set($iter,
		 COLUMN_LABEL, $a->{label},
		 COLUMN_INFO, $a->{info},
		 COLUMN_KERNEL, $a->{kernel},
		 COLUMN_INITRD, $a->{initrd},
		 COLUMN_AUTOMATIC, $a->{automatic},
		 COLUMN_INTERFACE, $a->{interface},
		 COLUMN_NETWORK, $a->{network},
		 COLUMN_SERVER, $a->{server},
		 COLUMN_DIRECTORY, $a->{directory},
		 COLUMN_RAMDISK, $a->{ramdisk},
		 COLUMN_VGA, $a->{vga},
		 COLUMN_DISPLAY, $a->{display},
		 COLUMN_OPTION, $a->{option},
		),
	      }
  return $model;
}

sub add_item {
  my ($button, $model) = @_;
  my @a;
  push @a, {
     label => "cooker",
     info => "install cooker",
     kernel => "/images/cooker",
     initrd => "cooker.rdz",
     automatic => "http",
     interface => "eth0",
     network => "dhcp",
     server => "10.0.1.33",
     directory => "/install/cooker",
     ramdisk => "64000",
     vga => "788",
     display => ":0",
     option => "acpi=ht",
  };

  my $iter = $model->append;
  $model->set($iter,
	      COLUMN_LABEL, $a[-1]{label},
	      COLUMN_INFO, $a[-1]{info},
	      COLUMN_KERNEL, $a[-1]{kernel},
	      COLUMN_INITRD, $a[-1]{initrd},
	      COLUMN_AUTOMATIC, $a[-1]{automatic},
	      COLUMN_INTERFACE, $a[-1]{interface},
	      COLUMN_NETWORK, $a[-1]{network},
	      COLUMN_SERVER, $a[-1]{server},
	      COLUMN_DIRECTORY, $a[-1]{directory},
	      COLUMN_RAMDISK, $a[-1]{ramdisk},
	      COLUMN_VGA, $a[-1]{vga},
	      COLUMN_DISPLAY, $a[-1]{display},
	      COLUMN_OPTION, $a[-1]{option},
	     );
#  write_conf_pxe;
}

sub remove_item {
  my ($widget, $treeview) = @_;
  my $model = $treeview->get_model;
  my $selection = $treeview->get_selection;
  my $iter = $selection->get_selected;
  if ($iter) {
      my $path = $model->get_path($iter);
      my $i = ($path->get_indices)[0];
      ask_okcancel("Remove $listpxe[$i]{label} PXE entry ?") or return;
      $model->remove($iter);
      splice @listpxe, $i, 1;
  }
  write_conf_pxe;
}

sub edit_box_item {
  my ($widget, $treeview) = @_;
  my $model = $treeview->get_model;
  my $selection = $treeview->get_selection;

  my $iter = $selection->get_selected;
  if ($iter) {
    my $path = $model->get_path($iter);
    my $i = ($path->get_indices)[0];

    my $dialog = new Gtk2::Dialog();
    $dialog->set_modal(1);
    $dialog->set_resizable(FALSE);

    my $label = Gtk2::Entry->new;
    $label->set_text($listpxe[$i]{label});

    my $info = Gtk2::Entry->new;
    $info->set_text($listpxe[$i]{info});

    my $kernel = Gtk2::Entry->new;
    $kernel->set_text($listpxe[$i]{kernel});
    # file selection for kernel
    my $file_dialogk = new Gtk2::FileSelection("File Selection");
    $file_dialogk->set_modal(TRUE);
    $file_dialogk->signal_connect("destroy", sub { $file_dialogk->hide });
    $file_dialogk->ok_button->signal_connect(clicked => sub {
					       my $file = $file_dialogk->get_filename;
					       $kernel->set_text($file);
					       $file_dialogk->hide;
					     }, $file_dialogk);
    $file_dialogk->cancel_button->signal_connect(clicked => sub { $file_dialogk->hide });
    # button kernel
    my $buttonkernel = Gtk2::Button->new("Select kernel");
    $buttonkernel->signal_connect(clicked => sub { $file_dialogk->show });

    my $initrd = Gtk2::Entry->new;
    $initrd->set_text($listpxe[$i]{initrd});
    # file selection for initrd
    my $file_dialog = new Gtk2::FileSelection("File Selection");
    $file_dialog->set_modal(TRUE);
    $file_dialog->signal_connect("destroy", sub { $file_dialog->hide });
    $file_dialog->ok_button->signal_connect(clicked => sub {
					      my $filei = $file_dialog->get_filename;
					      $initrd->set_text($filei);
					      $file_dialog->hide;
					    }, $file_dialog);
    $file_dialog->cancel_button->signal_connect(clicked => sub { $file_dialog->hide });
    my $buttoninitrd = Gtk2::Button->new("Select initrd");
    $buttoninitrd->signal_connect(clicked => sub { $file_dialog->show });

    # combo box to pop down automatic installation
    my $automatic = Gtk2::Combo->new;
    $automatic->set_popdown_strings(@list_method);
    $automatic->entry->set_text($listpxe[$i]{automatic});

    # combo box to pop down list of network interface
    my $interface = new Gtk2::Combo();
    $interface->set_popdown_strings(@list_eth);
    $interface->entry->set_text($listpxe[$i]{interface});

    my $network = Gtk2::Entry->new;
    $network->set_text($listpxe[$i]{network});

    my $server = Gtk2::Entry->new;
    $server->set_text($listpxe[$i]{server});

    my $directory = Gtk2::Entry->new;
    $directory->set_text($listpxe[$i]{directory});

    my $ramdisk = new Gtk2::Combo();
    $ramdisk->set_popdown_strings(@list_ram);
    $ramdisk->entry->set_text($listpxe[$i]{ramdisk});

    my $vga = new Gtk2::Combo();
    $vga->set_popdown_strings(@list_vga);
    $vga->entry->set_text($listpxe[$i]{vga});

    my $display = Gtk2::Entry->new;
    $display->set_text($listpxe[$i]{display});

    my $option = Gtk2::Entry->new;
    $option->set_text($listpxe[$i]{option});

    my %size_groups = map { $_ => Gtk2::SizeGroup->new('horizontal') } qw(label widget button);
    my $label_and_widgets = sub {
      my ($label, $widget, $button) = @_;
      gtkpack_(Gtk2::HBox->new(0,5),
	       0, gtkadd_widget($size_groups{label}, $label),
	       1, gtkadd_widget($size_groups{widget}, $widget),
	       2, gtkadd_widget($size_groups{button}, $button),
	      );
    };

    gtkpack_($dialog->vbox,
	     0, gtkadd(Gtk2::Frame->new(("Descrition")),
		       gtkpack_(Gtk2::VBox->new,
				0, $label_and_widgets->(N("Label"), $label, ""),
				0, $label_and_widgets->(N("Info"), $info, ""),
			       ),
		      ),
	     0, gtkadd(Gtk2::Frame->new(("Boot image")),
		       gtkpack_(Gtk2::VBox->new,
				0, $label_and_widgets->(N("Kernel"), $kernel, $buttonkernel),
				0, $label_and_widgets->(N("Initrd"), $initrd, $buttoninitrd),
			       ),
		      ),
	     0, gtkadd(Gtk2::Frame->new(("Automatic Options")),
		       gtkpack_(Gtk2::VBox->new,
				0, $label_and_widgets->(N("Automatic"), $automatic, ""),
                                0, $label_and_widgets->(N("Interface"), $interface, ""),
				0, $label_and_widgets->(N("Network"), $network, ""),
                                0, $label_and_widgets->(N("Server"), $server, ""),
				0, $label_and_widgets->(N("Directory"), $directory, ""),
			       ),
		      ),
	     0, gtkadd(Gtk2::Frame->new(("Display")),
		       gtkpack_(Gtk2::VBox->new,
                                0, $label_and_widgets->(N("Vga"), $vga, ""),
                                0, $label_and_widgets->(N("Display"), $display, ""),
			       ),
		      ),
	     0, gtkadd(Gtk2::Frame->new(("Other options")),
		       gtkpack_(Gtk2::VBox->new,
				0, $label_and_widgets->(N("Ramdisk"), $ramdisk, ""),
				0, $label_and_widgets->(N("Option"), $option, ""),
			       ),
		      ),
	     0, create_okcancel({
				 cancel_clicked => sub { $dialog->destroy },
				 ok_clicked => sub {
				   #ask_okcancel("are you sure you want to update all those values ?");
				   $listpxe[$i]{label} = $label->get_text;
				   $listpxe[$i]{info} = $info->get_text;
				   $listpxe[$i]{kernel} = $kernel->get_text;
				   $listpxe[$i]{initrd} = $initrd->get_text;
				   $listpxe[$i]{automatic} = $automatic->entry->get_text;
				   $listpxe[$i]{interface} = $interface->entry->get_text;
				   $listpxe[$i]{network} = $network->get_text;
				   $listpxe[$i]{server} = $server->get_text;
				   $listpxe[$i]{directory} = $directory->get_text;
				   $listpxe[$i]{ramdisk} = $ramdisk->entry->get_text;
				   $listpxe[$i]{vga} = $vga->entry->get_text;
				   $listpxe[$i]{display} = $display->get_text;
				   $listpxe[$i]{option} = $option->get_text;

				   # update value in cells
				   $model->set($iter,
					       COLUMN_LABEL, $listpxe[$i]{label},
					       COLUMN_INFO, $listpxe[$i]{info},
					       COLUMN_KERNEL, $listpxe[$i]{kernel},
					       COLUMN_INITRD, $listpxe[$i]{initrd},
					       COLUMN_AUTOMATIC, $listpxe[$i]{automatic},
					       COLUMN_INTERFACE, $listpxe[$i]{interface},
					       COLUMN_NETWORK, $listpxe[$i]{network},
					       COLUMN_SERVER, $listpxe[$i]{server},
					       COLUMN_DIRECTORY, $listpxe[$i]{directory},
					       COLUMN_RAMDISK, $listpxe[$i]{ramdisk},
					       COLUMN_VGA, $listpxe[$i]{vga},
					       COLUMN_DISPLAY, $listpxe[$i]{display},
					       COLUMN_OPTION, $listpxe[$i]{option},
					      );
				   $dialog->destroy;
				   write_conf_pxe;
				 },
				},
			       ),
	    );
    $dialog->show_all;
  }
}

sub cell_edited {
  my ($cell, $path_string, $new_text, $model) = @_;
  my $path = Gtk2::TreePath->new_from_string($path_string);
  my $column = $cell->get_data("column");
  my $iter = $model->get_iter($path);

  if ($column == COLUMN_LABEL) {
    my $i = ($path->get_indices)[0];
    $listpxe[$i]{label} = $new_text;
    $model->set($iter, $column, $listpxe[$i]{label});
  } elsif ($column == COLUMN_INFO) {
    my $i = ($path->get_indices)[0];
    $listpxe[$i]{info} = $new_text;
    $model->set($iter, $column, $listpxe[$i]{info});
  } elsif ($column == COLUMN_KERNEL) {
    my $i = ($path->get_indices)[0];
    if (-f $new_text) {
      $listpxe[$i]{kernel} = $new_text;
      $model->set($iter, $column, $listpxe[$i]{kernel});
    }
  } elsif ($column == COLUMN_INITRD) {
    my $i = ($path->get_indices)[0];
    if (-f $new_text) {
      $listpxe[$i]{initrd} = $new_text;
      $model->set($iter, $column, $listpxe[$i]{initrd});
    }
  } elsif ($column == COLUMN_AUTOMATIC) {
    my $i = ($path->get_indices)[0];
    if (!member($new_text, @list_method) or ($listpxe[$i]{kernel} =~ /memdisk/)) {
      return;
    } else {
      $listpxe[$i]{automatic} = $new_text;
      $model->set($iter, $column, $listpxe[$i]{automatic});
    }
  } elsif ($column == COLUMN_INTERFACE) {
    my $i = ($path->get_indices)[0];
    if (member($new_text, @list_eth) or ($listpxe[$i]{kernel} != /memdisk/)) {
      $listpxe[$i]{interface} = $new_text;
      $model->set($iter, $column, $listpxe[$i]{interface});
    }
  } elsif ($column == COLUMN_NETWORK) {
    my $i = ($path->get_indices)[0];
    if ($listpxe[$i]{kernel} != /memdisk/) {
      $listpxe[$i]{network} = $new_text;
      $model->set($iter, $column, $listpxe[$i]{network});
    }
  } elsif ($column == COLUMN_SERVER) {
    my $i = ($path->get_indices)[0];
    if ($listpxe[$i]{kernel} != /memdisk/) {
      $listpxe[$i]{server} = $new_text;
      $model->set($iter, $column, $listpxe[$i]{server});
    }
  } elsif ($column == COLUMN_DIRECTORY) {
    my $i = ($path->get_indices)[0];
    if (-d $new_text || ($listpxe[$i]{kernel} != /memdisk/)) {
      $listpxe[$i]{directory} = $new_text;
      $model->set($iter, $column, $listpxe[$i]{directory});
    }
  } elsif ($column == COLUMN_RAMDISK) {
    my $i = ($path->get_indices)[0];
    if (member($new_text, @list_ram) || ($listpxe[$i]{kernel} != /memdisk/)) {
      $listpxe[$i]{ramdisk} = $new_text;
      $model->set($iter, $column, $listpxe[$i]{ramdisk});
    }
  } elsif ($column == COLUMN_VGA) {
    my $i = ($path->get_indices)[0];
    if (member($new_text, @list_vga) || ($listpxe[$i]{kernel} != /memdisk/)) {
      $listpxe[$i]{vga} = $new_text;
      $model->set($iter, $column, $listpxe[$i]{vga});
    }
  } elsif ($column == COLUMN_DISPLAY) {
    my $i = ($path->get_indices)[0];
    if ($listpxe[$i]{kernel} != /memdisk/) {
      $listpxe[$i]{display} = $new_text;
      $model->set($iter, $column, $listpxe[$i]{display});
    }
  } elsif ($column == COLUMN_OPTION) {
    my $i = ($path->get_indices)[0];
    $listpxe[$i]{option} = $new_text;
    $model->set($iter, $column, $listpxe[$i]{option});
  }
  write_conf_pxe;
}

sub show_help { info_dialog("Help", $help) }

sub add_columns {
  my $treeview = shift;
  my $model = $treeview->get_model;
  # horrible hack to avoid: GLib-GObject-CRITICAL **: file gobject.c: line 1019 (g_object_set_property): assertion `G_IS_VALUE (value)' failed at drakpxe2.pl line 640.
  my $t = "0";
  my @j = qw/Label Info Kernel Initrd Method Interface Network Server Directory Ramdisk vga Display Extra Options/;
  each_index {
    my $renderer = Gtk2::CellRendererText->new;
    $renderer->set(editable => 1);
    $renderer->signal_connect(edited => \&cell_edited, $model);
    $renderer->set_data(column => $::i);
    $treeview->insert_column_with_attributes(-1, $j[$t], $renderer, 'text' => $::i);
    $t++;
  } (qw/x x x x x x x x x x x x x/);
#(("Label"), ("Info"), ("Kernel"), ("Initrd"), ("Method"), ("Interface"), ("Network"), ("Server"), ("Directory"), ("Ramdisk"), ("vga"), ("Display"), ("Extra"), ("Options"));
}

#
# Main

# create model
my $model = create_model();

my $window = ugtk2->new('Drakpxe2');
$window->{rwindow}->set_size_request(800, 400) unless $::isEmbedded;
my $W = $window->{window};
$W->signal_connect(delete_event => sub { ugtk2->exit });

my $treeview = Gtk2::TreeView->new_with_model($model);
$treeview->set_rules_hint(TRUE);
$treeview->get_selection->set_mode('single');
add_columns($treeview);

my $labels = new Gtk2::Combo();
my @labels = list_label_pxe;
my $defaultlabel = get_default_pxe;
$labels->entry->set_text("$defaultlabel");
$labels->entry->signal_connect("changed", sub { list_label_pxe; my $new_default = $labels->entry->get_text;
						set_new_default($new_default);
					      }
			      );

$labels->set_popdown_strings(@labels);
$labels->entry->set_text("$defaultlabel");

$W->add(gtkpack_(Gtk2::VBox->new(0,0),
		 0, Gtk2::Banner->new('wiz_default_up', ("DrakPXE default configuration file")),
		 1, create_scrolled_window($treeview),
		 0, gtkadd(gtkset_border_width(Gtk2::VBox->new, 0,0),
			   gtkadd(Gtk2::HBox->new(0,0),
				  $labels,
				  gtkpack(gtkset_layout(new Gtk2::HButtonBox, 'spread'),
					  0, (map {
					    my ($label, $sub, $widg) = @$_;
					    gtksignal_connect(Gtk2::Button->new($label), clicked => sub {
								$sub->($model, $widg); })
					  } ([ ("Help"), \&show_help ],
					     [ ("Add a PXE entry"), \&add_item, $model ],
					     [ ("Remove PXE entry"), \&remove_item, $treeview ],
					     [ ("Edit a PXE entry"), \&edit_box_item, $treeview ],
					    )
					     ),
					 ),

				 ),
			  ),
		),
       );

$W->show_all;
Gtk2->main;