fix mixer group-tab width - #6572

[ardour.git] / gtk2_ardour / mixer_group_tabs.cc

diff --git a/gtk2_ardour/mixer_group_tabs.cc b/gtk2_ardour/mixer_group_tabs.cc
index 7d8bb99b481ce2687ec1dd6bc7b6093470e93fcf..e7d82ae708fc323bd9f537361ab0c18ce8d9527c 100644 (file)
--- a/gtk2_ardour/mixer_group_tabs.cc
+++ b/gtk2_ardour/mixer_group_tabs.cc
@@ -83,7 +83,9 @@ MixerGroupTabs::compute_tabs () const
                        }
                }
 
-               x += s->get_width ();
+               int ww = 0, wh = 0;
+               s->get_size_request (ww, wh); // widget may not be realized, get_width() is invalid.
+               x += ww;
        }
 
        if (tab.group) {