Gtk2::TreeIter

Section: User Contributed Perl Documentation (3)
Updated: 2008-05-05
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NAME

Gtk2::TreeIter  

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.

 

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) 2003-2008 by the gtk2-perl team.

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


 

Index

NAME
HIERARCHY
SYNOPSIS
DESCRIPTION
METHODS
treeiter = Gtk2::TreeIter->new_from_arrayref ($sv_iter)
scalar = $iter->to_arrayref ($stamp)
SEE ALSO
COPYRIGHT

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