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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