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)
