Re: gtktreeview and doubles

[Murray Cumming <murrayc murrayc com>]

On Wed, 2008-04-30 at 10:49 +0200, Martin (OpenGeoMap) wrote:
> Hi all:
>
> ItÂs posible edit the cellrender for doubles??
>
> Always put 6 decimals. Can i modify that??
>
> Any tips appreciated.

You can use gtk_tree_view_column_set_cell_data_func() to change how data
is displayed in your cell renderer. For instance, you can set the "text"
property with the result of a sprintf() call:
http://library.gnome.org/devel/gtk/unstable/GtkTreeViewColumn.html#gtk-tree-view-column-set-cell-data-func

gtkmm even has a Gtk::TreeView::append_column_numeric() method to make
this easier:
http://www.gtkmm.org/docs/gtkmm-2.4/docs/reference/html/classGtk_1_1TreeView.html#e6fc0051cc178bfacea2dec27c2d5a58

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