Re: [gtkmm] how do I know when a row has been edited?

["Andreas B. Thun" <abt gmx de>]

Hi Roger,


Thx for your reply. I am slightly irritated now.
Seems very complicated. I just cannot apply
your solution to my code :-(
Is it not possible to connect a callback to a
row directly?

	Gtk::TreeModel::iterator iter = m_listStoreRef->append();
	ROW row = *iter;
	row[m_columns.m_elementType] = "myType";
	row[m_columns.m_elementId]   = "myData";

	// dumb try, won't work
	row->signal_row_changed().connect(SigC::slot (*this,
&MyTable::rowChangedCallback));


Roger Leigh schrieb:
> 
> "Andreas B. Thun" <abt gmx de> writes:
> 
> > How can I call a callback when a value in my list has been changed?
> > signal_changed() only calls my callback after selection but not when
> > I edit the row.
> >
> > I read about signal_row_changed() but I don't have a TreeModel...
> 
> If you have an editable cell:
> 
>   treeview->set_model(tree_store);
>   int view_column = treeview->append_column("Name", list_columns.m_col_name);
>   Gtk::CellRenderer *renderer =
>     treeview->get_column_cell_renderer(view_column - 1);
>   Gtk::CellRendererText *text_renderer =
>     dynamic_cast<Gtk::CellRendererText *>(renderer);
>   if (text_renderer)
>     {
>       text_renderer->property_editable() = true;
>       text_renderer->signal_edited().connect
>         ( SigC::slot(*this, &MyDialog::on_edited) );
>     }
> 
> void
> MyDialog::on_edited(const Glib::ustring& path,
>                     const Glib::ustring& text)
> {
>   // Check if the value has changed from its previous value...
>   {
>     Gtk::TreeModel::iterator cur =
>       m_tree_store->get_iter(Gtk::TreePath(path));
>     Gtk::TreeModel::Row row = *cur;
>     if (row[list_columns.m_col_name] == text) // value is unchanged
>       return;
>   }
> 
>   // Do other stuff here...
> }
> 
> HTH,
> Roger
> 
> --
> Roger Leigh
> 
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