#! /usr/bin/perl -w
use strict;
use Gtk2 '-init';
use Glib qw/TRUE FALSE/;
use Data::Dumper;

my $window = Gtk2::Window->new( 'toplevel' );
$window->signal_connect( 'delete_event' => sub { Gtk2->main_quit; } );
$window->set_border_width( 5 );
$window->set_position( 'center_always' );

#this vbox will geturn the bulk of the gui
my $vbox = &ret_vbox();

#add and show the vbox
$window->add( $vbox );

$window->show();

#our main event-loop
Gtk2->main();

sub ret_vbox {

   my $vbox = Gtk2::VBox->new( FALSE, 5 );

   my $sw = Gtk2::ScrolledWindow->new( undef, undef );
   $sw->set_shadow_type( 'etched-out' );
   $sw->set_policy( 'automatic', 'automatic' );
   $sw->set_size_request( 300, 300 );
   $sw->set_border_width( 5 );

   my $tree_store = Gtk2::TreeStore->new( qw/Glib::String  Glib::String / );

#fill it with arbitry data
   foreach ( 1 .. 30 ) {
      my $parent_nr = $_;
#the iter is a pointer in the treestore. We
#use to add data.
      my $iter = $tree_store->append( undef );
      $tree_store->set( $iter, 0 => "Parent $parent_nr" );
      $tree_store->set( $iter, 1 => "----------" );

      foreach ( 1 .. 3 ) {
         my $iter_child = $tree_store->append( $iter );
         $tree_store->set( $iter_child, 0 => "Child $_ of Parent $parent_nr" );
      }
   }

   my $tree_view = Gtk2::TreeView->new( $tree_store );
   $tree_view->set_reorderable( 1 );    #drag and drop reordering

   my $tree_column = Gtk2::TreeViewColumn->new();
   $tree_column->set_title( "Click to sort" );

   my $renderer = Gtk2::CellRendererText->new;
   #add a data rider to store column
   $renderer->{ 'column' } = 0;
   $renderer->set_property( 'editable', TRUE );
   $renderer->signal_connect( edited => \&cell_edited, $tree_store );

   $tree_column->pack_start( $renderer, FALSE );
   $tree_column->add_attribute( $renderer, text => 0 );
   $tree_view->append_column( $tree_column );

#secon column
   my $tree_column1 = Gtk2::TreeViewColumn->new();
   $tree_column1->set_title( "-----------------" );

   my $renderer1 = Gtk2::CellRendererText->new;

   #add a data rider to store column
 #  $renderer1->{ 'column' } = 1;    #1 way
    $renderer1->set_data('column',1);


   $renderer1->set_property( 'editable', TRUE );
   $renderer1->signal_connect( edited => \&cell_edited, $tree_store );
   $tree_column1->pack_end( $renderer1, FALSE );
   $tree_column1->add_attribute( $renderer1, text => 1 );
   $tree_view->append_column( $tree_column1 );
   $tree_view->set_search_column( 0 );
   $tree_column1->set_sort_column_id( 0 );

   $tree_view->set_reorderable( TRUE );
   $sw->add( $tree_view );

   $vbox->pack_start( $sw, TRUE, TRUE, 0 );
   $vbox->show_all();
   return $vbox;
}
#######################################################################
sub cell_edited {
   print "@_\n";
   my ( $cell, $path_string, $new_text, $model ) = @_;

#   print Dumper( [ \$cell ] ), "\n";

#   my @props = $cell->list_properties;
#   print join "\n",@props;
#   print "@props\n\n";
   
#   foreach my $prop( @props ){
#         print Dumper([\$prop]),"\n";
#         }
 
 print "$path_string\n";
 my $path = Gtk2::TreePath->new_from_string( $path_string );

  my @indices = $path->get_indices;
  print "indices->@indices\n";

#Glib::Object::get_data(object, key)
#my $column = $cell->get_data('column');

# this is what I did to get the column number
  # my $column = $cell->{ 'column' };
  my $column = $cell->get_data('column');
   print "column->$column\n";

   my $iter = $model->get_iter( $path );
   $model->set_value( $iter, $column, $new_text );
   return FALSE;
}