Re: GtkTreeView: Simple application

[David Nečas (Yeti) <yeti physics muni cz>]

On Sat, May 26, 2007 at 03:19:49AM +0300, Felipe Balbi wrote:
> my doubt regards this code:
>
> int main(int argc, char *argv[])
> {
>       GladeXML        *openhset;
>       GtkWidget       *main_window, *test_window;
>       GtkWidget       *main_window_treeview1;
>       GtkWidget       *main_window_ok;
>
>       GtkListStore    *main_window_list;
>       GtkTreeIter     iter;
>
>       GtkCellRenderer *renderer;
>       GtkTreeViewColumn       *column;
>
>       struct usb_bus  *bus;
>
>       gtk_init(&argc, &argv);
>
>       /* Open the XML File */
>       openhset = glade_xml_new (OPENHSET_XML, NULL, NULL);
>
>       /* Get Widgets */
>       main_window = glade_xml_get_widget (openhset, "main_window");
>       main_window_ok = glade_xml_get_widget (openhset, "main_window_ok");
>       main_window_treeview1 = glade_xml_get_widget (openhset,
> "main_window_treeview1");
>
>       /* Connect signal handlers */
>       glade_xml_signal_autoconnect (openhset);
>
>       /* Create a GtkListStore */
>       main_window_list = gtk_list_store_new (1, G_TYPE_STRING);
>
>       /* Populate the GtkListStore */
>       gtk_list_store_append (main_window_list, &iter);
>       gtk_list_store_set (main_window_list, &iter,
>                       0, "TESTING",
>                       -1);
>
>       /* Add the GtkListStore to the GtkTreeView */
>       gtk_tree_view_set_model (GTK_TREE_VIEW (main_window_treeview1),
> GTK_TREE_MODEL (main_window_list));
>
>       /* Renderer and column */
>       renderer = gtk_cell_renderer_text_new();
>       column = gtk_tree_view_column_new_with_attributes ("USB HCD", renderer,
>                       "text", 1, NULL);

Doesn't this print a warning to console?

Your list store has only one column, which therefore gets
number 0, and here you are trying to bind some renderer
attribute to (nonexistent) column 1.

>       gtk_tree_view_append_column (GTK_TREE_VIEW (main_window_treeview1), column);
>
>       gtk_main();
>
>       return 0;
> }
>
> So... I can't see the result of:
>
>       gtk_list_store_set (main_window_list, &iter,
>                       0, "TESTING",
>                       -1);
>
> It's not being listed in the treeview after building / running the code.

Probably a consequence of the problem above -- the tree view
has not actually got anything to display.

Yeti

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