[Gtk2-perl-bugs] [Bug 161012] New: Feature Request: Gtk2::TreeIters should be able to store data

[<bug...@bu...>]

http://bugzilla.gnome.org/show_bug.cgi?id=161012
gnome-perl | Gtk2 | Ver: unspecified

           Summary: Feature Request: Gtk2::TreeIters should be able to store
                    data
           Product: gnome-perl
           Version: unspecified
          Platform: Other
        OS/Version: All
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: Low
         Component: Gtk2
        AssignedTo: gtk...@li...
        ReportedBy: zb...@fo...


It would be very nice if, instead of the binding treating a GtkTreeIter as a
reference to a 4-element array, it could somehow attach a reference to an
arbitrary Perl object.  This would make it easier for custom TreeModel
implementers whose data is not already stored in Perl (and perhaps even for
those whose data is already in Perl).

For example, if you want to write a TreeModel to display data out of a SQL
database, it can become difficult to uniquely refer to a particular row in the
DB, especially if your data is stored over multiple tables.

This feature would also have other potential benefits.  For instance, suppose I
want to display a tree stored in a single SQL table, with fields for ID, Next,
and Parent.  If you can store the next and parent values directly in the
TreeIter, you can sometimes save a DB lookup.  I believe this feature would also
lead to less need to duplicate data, but I currently have no example for that case.

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