NAME

       Gtk2::TreeIter - wrapper for GtkTreeIter

HIERARCHY

         Glib::Boxed
         +----Gtk2::TreeIter

SYNOPSIS

         package MyCustomListStore;

         use Glib::Object::Subclass
             Glib::Object::,
             interfaces => [ Gtk2::TreeModel:: ],
             ;

         ...

         sub set {
             my $list = shift;
             my $iter = shift; # a Gtk2::TreeIter

             # this method needs access to the internal representation
             # of the iter, as the model implementation sees it:
             my $arrayref = $iter->to_arrayref ($list->{stamp});
             ...
         }

DESCRIPTION

       The methods described here are only of use in custom Gtk2::TreeModel implementations; they
       are not safe to be used on generic iters or in application code.  See "CREATING A CUSTOM
       TREE MODEL" in Gtk2::TreeModel for more information.

METHODS

   treeiter = Gtk2::TreeIter->new_from_arrayref ($sv_iter)
       •   $sv_iter (scalar)

       Create a new Gtk2::TreeIter from the "internal" array reference representation used by
       custom Gtk2::TreeModel implementations.  This is the complement to
       Gtk2::TreeIter::to_arrayref(), and is used when you need to create and return a new iter
       from a method that is not one of the Gtk2::TreeModelIface interface vfuncs.  See "CREATING
       A CUSTOM TREE MODEL" in Gtk2::TreeModel for more information.

   $iter->set ($from)
       •   $from (scalar)

       Set the contents of $iter.  $from can be either another Gtk2::TreeIter or an "internal"
       arrayref form as above.

       Often you create a new iter instead of modifying an existing one, but "set" lets you to
       implement things in the style of the "remove" method of Gtk2::ListStore and
       Gtk2::TreeStore.

       A set can also explicitly invalidate an iter by zapping its stamp, so nobody can
       accidentally use it again.

           $iter->set ([0,0,undef,undef]);

   scalar = $iter->to_arrayref ($stamp)
       •   $stamp (integer)

       Convert a boxed Gtk2::TreeIter reference into the "internal" array reference
       representation used by custom Gtk2::TreeModel implementations.  This is necessary when you
       need to get to the data inside your iters in methods which are not the vfuncs of the
       Gtk2::TreeModelIface interface.  The stamp must match; this protects the binding code from
       potential memory faults when attempting to convert an iter that doesn't actually belong to
       your model.  See "CREATING A CUSTOM TREE MODEL" in Gtk2::TreeModel for more information.

SEE ALSO

       Gtk2, Glib::Boxed, Gtk2::TreeModel

COPYRIGHT

       Copyright (C) 2003-2011 by the gtk2-perl team.

       This software is licensed under the LGPL.  See Gtk2 for a full notice.