explicitly expose dividers

hmm, seems important to understand how this worked before

diff --git a/libs/gtkmm2ext/pane.cc b/libs/gtkmm2ext/pane.cc
index c539403b4dddbc8eb38c883614c1b30ace828c2a..7f1c4ea7422a41828c7f22dc9f2017d04799892e 100644 (file)
--- a/libs/gtkmm2ext/pane.cc
+++ b/libs/gtkmm2ext/pane.cc
@@ -266,8 +266,8 @@ Pane::on_expose_event (GdkEventExpose* ev)
                        propagate_expose (*(child->w), ev);
                }
 
-               if (div != dividers.end()) {
-                       propagate_expose (*(child->w), ev);
+               if ((div != dividers.end()) && (*div)->is_visible()) {
+                       propagate_expose (**div, ev);
                }
         }