- wxLogDebug(wxT("gtk_collapsiblepane_expanded_callback - my min size is now: %d-%d"),
- sz.GetWidth(), sz.GetHeight());
-
- // minimal size has priority over the best size so set here our min size
+ // 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