gtk2::treeiter(3pm) [debian man page]

Gtk2::TreeIter(3pm)					User Contributed Perl Documentation				       Gtk2::TreeIter(3pm)

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)
       o   $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)
       o   $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)
       o   $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.

perl v5.14.2							    2012-05-27						       Gtk2::TreeIter(3pm)