On Wed, 2011-02-23 at 03:46 +0900, Tristan Van Berkom wrote: Hi,
> >> If your going to use the model, then perhaps this will work... > >> > >> gtk_list_store_clear(GTK_LIST_STORE(gtk_combo_box_get_model(GTK_COMBO_BOX(combo_box)))); > > > > Yes, I can do that. But I think it's a bug in the API if I have to rely > > on a specific implementation of an API function to do something that > > simple. Why isn't there a funtion like > > > > guint gtk_combo_box_text_num_elements() > > Sure, there is gtk_tree_model_n_children() or such (it would > be a worse idea to add api to the combo box when a perfectly > valid method of counting the liststore elements already exists). Agreed. Otherwise the whole convenience wrapper-function stuff would just replicate the existing API for everything. > > which returns the number of the remaining elements in the list? Because > > as of now it would be perfectly legal to _not_ use a GtkTreeModel to > > store list entries in case the ComboBox was created with the _text_ > > convenience functions. > > Or the API specs should say that a combo box created with the > > convenience functions will always result in normal combo box with a > > GtkTreeModel and thus all functions are usable. > > A combo box using the text api uses an internally created > liststore to store the text, it cannot use anything else but > a treemodel. > > Sure, the api docs are not so clear about this, which is why > all of your documentation patches are welcome in bugzilla (the > GtkComboBoxText class new in GTK+ 2.24 might have > better documentation, but you are welcome to improve > those docs too). Ok, I will take a look at the VCS-head and see if I can come up with a small patch to the documentation that clarifies the meaning of the "If you use this function to create a text combo box, you should only manipulate its data source with the following convenience functions:" sentence. (If this isn't done already, so far I only looked at the stuff packaged in debian, not at the actual upstream documents.) Regards, Timo
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