TracksPrefs does not use hardcoded list of all view types...

... It does have some duplication of string values, but only for purposes of
upgrading old config files.

include/audacity/Types.h

@@ -467,6 +467,8 @@ public:
    TranslatableString Stripped( unsigned options = MenuCodes ) const
    { return TranslatableString{ *this }.Strip( options ); }
 
+   wxString StrippedTranslation() const { return Stripped().Translation(); }
+
 private:
    static const Formatter NullContextFormatter;
 

src/Prefs.h

@@ -214,7 +214,7 @@ public:
       EnumValueSymbols symbols,
       long defaultSymbol,
 
-      std::initializer_list< Enum > values, // must have same size as symbols
+      std::vector< Enum > values, // must have same size as symbols
       const wxString &oldKey = {}
    )
       : EnumSettingBase{

src/ShuttleGui.cpp

@@ -402,7 +402,7 @@ wxChoice * ShuttleGuiBase::AddChoice( const TranslatableString &Prompt,
       wxDefaultPosition,
       wxDefaultSize,
       transform_container<wxArrayString>(
-         choices, std::mem_fn( &TranslatableString::Translation ) ),
+         choices, std::mem_fn( &TranslatableString::StrippedTranslation ) ),
       GetStyle( 0 ) );
 
    pChoice->SetMinSize( { 180, -1 } );// Use -1 for 'default size' - Platform specific.
@@ -2421,7 +2421,7 @@ void ShuttleGui::SetMinSize( wxWindow *window, const TranslatableStrings & items
 {
    SetMinSize( window,
       transform_container<wxArrayStringEx>(
-         items, std::mem_fn( &TranslatableString::Translation ) ) );
+         items, std::mem_fn( &TranslatableString::StrippedTranslation ) ) );
 }
 
 void ShuttleGui::SetMinSize( wxWindow *window, const wxArrayStringEx & items )

src/prefs/TracksPrefs.cpp

@@ -27,6 +27,7 @@
 
 #include "../Prefs.h"
 #include "../ShuttleGui.h"
+#include "../tracks/playabletrack/wavetrack/ui/WaveTrackView.h"
 
 int TracksPrefs::iPreferencePinned = -1;
 
@@ -81,8 +82,6 @@ namespace {
    const auto key2 = wxT("/GUI/DefaultViewModeChoice");
    const auto key3 = wxT("/GUI/DefaultViewModeChoiceNew");
 
-   const EnumValueSymbol waveformSymbol{ XO("Waveform") };
-   const EnumValueSymbol spectrumSymbol{ XO("Spectrogram") };
    const wxString obsoleteValue{ wxT("WaveformDB") };
 };
 
@@ -100,6 +99,9 @@ public:
       // to avoid confusing version 2.1.0 if it reads the preference file afterwards.
       // Prefer the NEW preference key if it is present
 
+      static const EnumValueSymbol waveformSymbol{ XO("Waveform") };
+      static const EnumValueSymbol spectrumSymbol{ XO("Spectrogram") };
+
       WaveTrackViewConstants::Display viewMode;
       int oldMode;
       wxString newValue;
@@ -143,23 +145,26 @@ public:
    }
 };
 
-static TracksViewModeEnumSetting viewModeSetting{
-   key3,
-   {
-      { waveformSymbol },
-      { spectrumSymbol }
-   },
-   0, // Waveform
-
-   {
-      WaveTrackViewConstants::Waveform,
-      WaveTrackViewConstants::Spectrum
-   }
-};
+static TracksViewModeEnumSetting viewModeSetting()
+{
+   // Do a delayed computation, so that registration of sub-view types completes
+   // first
+   const auto &types = WaveTrackSubView::AllTypes();
+   auto symbols = transform_container< EnumValueSymbols >(
+      types, std::mem_fn( &WaveTrackSubView::Type::name ) );
+   auto ids = transform_container< std::vector< WaveTrackSubView::Display > >(
+      types, std::mem_fn( &WaveTrackSubView::Type::id ) );
+   return {
+      key3,
+      symbols,
+      0, // Waveform
+      ids
+   };
+}
 
 WaveTrackViewConstants::Display TracksPrefs::ViewModeChoice()
 {
-   return viewModeSetting.ReadEnum();
+   return viewModeSetting().ReadEnum();
 }
 
 WaveformSettings::ScaleTypeValues TracksPrefs::WaveformScaleChoice()
@@ -344,7 +349,7 @@ void TracksPrefs::PopulateOrExchange(ShuttleGui & S)
 #endif
 
          S.TieChoice(XO("Default &view mode:"),
-                     viewModeSetting );
+                     viewModeSetting() );
 
          S.TieChoice(XO("Default Waveform scale:"),
                      waveformScaleSetting );