- // VERY IMPORTANT:
- // just calling
- // p->OnStateChange(sz);
- // here would work work BUT:
- // 1) in the expanded->collapsed transition it provokes a lot of flickering
- // 2) in the collapsed->expanded transition using the "Change status" wxButton
- // in samples/collpane application some strange warnings would be generated
- // by the "clearlooks" theme, if that's your theme.
- //
- // So we prefer to use some GTK+ native optimized calls, which prevent too many resize
- // calculations to happen. Note that the following code has been very carefully designed
- // and tested - be VERY careful when changing it!
-
- // 1) need to update our size hints
- // NB: this function call won't actually do any long operation
- // (redraw/relayouting/resizing) so that it's flicker-free
- p->SetMinSize(sz);
-
+extern "C" {
+static void
+gtk_collpane_map_unmap_callback( GtkWidget *WXUNUSED(pane), GdkEvent *WXUNUSED(event), wxCollapsiblePane* p )
+{