Fix failure to update peak on changing gain (#2286).

diff --git a/src/wx/audio_panel.cc b/src/wx/audio_panel.cc
index 7efdeb8ac88de1acd7c63cda135f8d0f87db6b01..5e8370d46bfcb5b258f0219517faccbcef498cdb 100644 (file)
--- a/src/wx/audio_panel.cc
+++ b/src/wx/audio_panel.cc
@@ -261,6 +261,8 @@ AudioPanel::film_content_changed (int property)
                setup_peak ();
                layout ();
        } else if (property == AudioContentProperty::GAIN) {
                setup_peak ();
                layout ();
        } else if (property == AudioContentProperty::GAIN) {

+               /* This is a bit aggressive but probably not so bad */
+               _peak_cache.clear();

                setup_peak ();
        } else if (property == DCPContentProperty::REFERENCE_AUDIO) {
                if (ac.size() == 1) {
                setup_peak ();
        } else if (property == DCPContentProperty::REFERENCE_AUDIO) {
                if (ac.size() == 1) {