Some more cleanup for new spectrogram color scheme

- Add some assertion
- Define spectrogram color scheme name using the two-argument constructor. (i18n)

src/AColorResources.h

@@ -2,8 +2,9 @@
 
   Audacity: A Digital Audio Editor
 
-  AColorResources.h
+  @file AColorResources.h
-  
+  @brief RGB data of 'Color (New)' spectrogram color scheme
+
   Colormap generated by using gen_wheel.py at
   https://github.com/dofuuz/audacity-colormap
 

src/CMakeLists.txt

@@ -75,6 +75,7 @@ list( APPEND SOURCES
    PRIVATE
       AColor.cpp
       AColor.h
+      AColorResources.h
       ActiveProjects.cpp
       ActiveProjects.h
       AboutDialog.cpp

src/prefs/SpectrogramSettings.cpp

@@ -16,6 +16,7 @@ Paul Licameli
 
 #include "SpectrogramSettings.h"
 
+#include "../AColor.h"
 #include "../NumberScale.h"
 
 #include <algorithm>
@@ -160,14 +161,18 @@ const EnumValueSymbols &SpectrogramSettings::GetColorSchemeNames()
    static const EnumValueSymbols result{
       // Keep in correspondence with enum SpectrogramSettings::ColorScheme:
       /* i18n-hint: New color scheme for spectrograms */
-      XO("Color (New)") ,
+      { wxT("SpecColorNew"), XO("Color (New)") },
       /* i18n-hint: color scheme from theme for spectrograms */
-      XO("Color (from Theme)") ,
+      { wxT("SpecColorTheme"), XO("Color (from Theme)") },
       /* i18n-hint: grayscale color scheme for spectrograms */
-      XO("Grayscale") ,
+      { wxT("SpecGrayscale"), XO("Grayscale") },
       /* i18n-hint: inverse grayscale color scheme for spectrograms */
-      XO("Inv. Grayscale") ,
+      { wxT("SpecInvGrayscale"), XO("Inv. Grayscale") },
    };
+
+   wxASSERT(csNumColorScheme == result.size());
+   static_assert(csNumColorScheme == AColor::colorSchemes, "Broken correspondence");
+
    return result;
 }
 

src/prefs/SpectrogramSettings.h

@@ -131,7 +131,7 @@ public:
 
    typedef int ColorScheme;
    enum ColorSchemeValues : int {
-      // Keep in correspondence with AColor::gradient_pre
+      // Keep in correspondence with AColor::colorSchemes, AColor::gradient_pre
       csColorNew = 0,
       csColorTheme,
       csGrayscale,