Fix LV2 UIs with spacey paths (e.g. Pianoteq).

[ardour.git] / libs / ardour / event_type_map.cc

diff --git a/libs/ardour/event_type_map.cc b/libs/ardour/event_type_map.cc
index 14f609bd8a5615d0634bac6f1fc8885c5d69527d..f818b301728f498140175ca30522f9332311ee12 100644 (file)
--- a/libs/ardour/event_type_map.cc
+++ b/libs/ardour/event_type_map.cc
@@ -22,6 +22,7 @@
 #include <cstdio>
 #include "ardour/types.h"
 #include "ardour/event_type_map.h"
+#include "ardour/parameter_descriptor.h"
 #include "ardour/parameter_types.h"
 #include "ardour/uri_map.h"
 #include "evoral/Parameter.hpp"
@@ -243,13 +244,17 @@ EventTypeMap::to_symbol(const Evoral::Parameter& param) const
        }
 }
 
-const Evoral::ParameterDescriptor&
+Evoral::ParameterDescriptor
 EventTypeMap::descriptor(const Evoral::Parameter& param) const
 {
-       static const Evoral::ParameterDescriptor nil;
-
+       // Found an existing (perhaps custom) descriptor
        Descriptors::const_iterator d = _descriptors.find(param);
-       return (d != _descriptors.end()) ? d->second : nil;
+       if (d != _descriptors.end()) {
+               return d->second;
+       }
+
+       // Add default descriptor and return that
+       return ARDOUR::ParameterDescriptor(param);
 }
 
 void