Fix setting client data when adding items to a sorted wxListBox, broken in r74317

closes #16290


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_3_0_BRANCH@76605 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/changes.txt

@@ -623,6 +623,7 @@ wxGTK:
 - Fix wxDirPickerCtrl to send wxEVT_DIRPICKER_CHANGED when user selects a
   special folder from combobox
 - Fix wxSystemSettings::GetColour() returning transparent colors with GTK3.
+- Fix setting client data when adding items to a sorted wxListBox.
 
 wxMSW:
 

src/gtk/listbox.cpp

@@ -460,9 +460,13 @@ int wxListBox::DoInsertOneItem(const wxString& item, unsigned int pos)
 #else
     int entryCol = 0;
 #endif
-    gtk_list_store_insert_with_values(m_liststore, NULL, pos, entryCol, entry, -1);
+    GtkTreeIter iter;
+    gtk_list_store_insert_with_values(m_liststore, &iter, pos, entryCol, entry, -1);
     g_object_unref(entry);
 
+    if (HasFlag(wxLB_SORT))
+        pos = GTKGetIndexFor(iter);
+
     return pos;
 }