Gtkmm-forge digest, Vol 1 #1092 - 1 msg

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Today's Topics:

   1. [Bug 336519] New: Gtk::TreeModel does not offer an erase-method (gtkmm (bugzilla.gnome.org))

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Message: 1
To: gtkmm-forge lists sourceforge net
From: "gtkmm (bugzilla.gnome.org)" <bugzilla-daemon bugzilla gnome org>
Date: Wed, 29 Mar 2006 12:04:18 -0500 (EST)
Subject: [gtkmm bugzilla] [Bug 336519] New: Gtk::TreeModel does not offer an erase-method

Do not reply to this via email (we are currently unable to handle email
responses and they get discarded).  You can add comments to this bug at
http://bugzilla.gnome.org/show_bug.cgi?id=3D336519
 gtkmm | TreeView | Ver: 2.8.x

           Summary: Gtk::TreeModel does not offer an erase-method
           Product: gtkmm
           Version: 2.8.x
          Platform: Other
        OS/Version: All
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: Normal
         Component: TreeView
        AssignedTo: gtkmm-forge lists sourceforge net
        ReportedBy: gizmo_ms yahoo ca
         QAContact: gtkmm-forge lists sourceforge net
     GNOME version: Unversioned Enhancement
   GNOME milestone: Unspecified


I developed a file-tree view (derived from Gtk::TreeView), which shows an=
 icon
(acc. to the file-type) besides the name of the file (analogue to the
Gtk::FileChooserDialog/Widget). This widget is designed to support both t=
ree-
and list-stores.

Right-clicking on it shows a pop-up menu offering some functionality. One=
 of
them is to erase the file. And there's the problem.

The only way I found to delete a line is via the models erase()-method. T=
hey
work fine, but you need to know the type of the model (Gtk::ListStore,
Gtk::TreeStore, ...), which the widget does not. It can call get_model(),=
 but
gets a Gtk::TreeModel, which does not offer an erase().

Maybe I overlooked something, but if not the only "solution" is to dynami=
cally
check for the used model, cast to it and call erase. Of course, that make=
s the
code ugly, clumsy and error-prone.

The only clean solution I can think of is a

  virtual iterator erase (const iterator& iter);

in Gtk::TreeModel (though this breaks probably the ABI)


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