// GetModel() is a wrapper around gtk_tree_view_get_model().
func (v *TreeView) GetModel() (*TreeModel, error) {
c := C.gtk_tree_view_get_model(v.native())
if c == nil {
return nil, nilPtrErr
}
return wrapTreeModel(wrapObject(unsafe.Pointer(c))), nil
}
func gListboxDelete(widget *C.GtkWidget, index int) {
var iter C.GtkTreeIter
tv := getTreeViewFrom(widget)
ls := (*C.GtkListStore)(unsafe.Pointer(C.gtk_tree_view_get_model(tv)))
if C.gtk_tree_model_iter_nth_child((*C.GtkTreeModel)(unsafe.Pointer(ls)), &iter, (*C.GtkTreeIter)(nil), C.gint(index)) == C.FALSE {
panic(fmt.Errorf("error deleting row %d from GTK+ Listbox: no such index or some other error", index))
}
C.gtk_list_store_remove(ls, &iter)
}
func gListboxInsert(widget *C.GtkWidget, index int, what string) {
var iter C.GtkTreeIter
tv := getTreeViewFrom(widget)
ls := (*C.GtkListStore)(unsafe.Pointer(C.gtk_tree_view_get_model(tv)))
C.gtk_list_store_insert(ls, &iter, C.gint(index))
cwhat := C.CString(what)
defer C.free(unsafe.Pointer(cwhat))
C.gtkListStoreSet(ls, &iter, cwhat)
}
func gListboxLen(widget *C.GtkWidget) int {
tv := getTreeViewFrom(widget)
model := C.gtk_tree_view_get_model(tv)
return gtkTreeModelListLen(model)
}