Pitch is no longer a special view type... && bug fixes 1040, 1041

... It is a choice of algorithm in spectrogram settings, and any frequency
scale may be chosen with it.  Spectral selection works in it.

src/prefs/SpectrumPrefs.h

@@ -54,9 +54,12 @@ class SpectrumPrefs:public PrefsPanel
    void OnControl(wxCommandEvent &event);
    void OnWindowSize(wxCommandEvent &event);
    void OnDefaults(wxCommandEvent&);
+   void OnAlgorithm(wxCommandEvent &);
    void OnApply(wxCommandEvent &);
    DECLARE_EVENT_TABLE()
 
+   void EnableDisableSTFTOnlyControls();
+
    WaveTrack *const mWt;
    bool mDefaulted;
 
@@ -70,12 +73,16 @@ class SpectrumPrefs:public PrefsPanel
 
 #ifdef EXPERIMENTAL_ZERO_PADDED_SPECTROGRAMS
    int mZeroPaddingChoice;
+   wxChoice *mZeroPaddingChoiceCtrl;
    wxArrayString mZeroPaddingChoices;
 #endif
 
    wxArrayString mTypeChoices;
    wxArrayString mScaleChoices;
 
+   wxChoice *mAlgorithmChoice;
+   wxArrayString mAlgorithmChoices;
+
 
 #ifdef EXPERIMENTAL_FIND_NOTES
    wxTextCtrl *mFindNotesMinA;
@@ -98,5 +105,4 @@ public:
 private:
    WaveTrack *const mWt;
 };
-
 #endif