Eliminate calls to GetActiveProject in src/prefs

src/prefs/KeyConfigPrefs.cpp

@@ -80,7 +80,8 @@ BEGIN_EVENT_TABLE(KeyConfigPrefs, PrefsPanel)
    EVT_TIMER(FilterTimerID, KeyConfigPrefs::OnFilterTimer)
 END_EVENT_TABLE()
 
-KeyConfigPrefs::KeyConfigPrefs(wxWindow * parent, wxWindowID winid,
+KeyConfigPrefs::KeyConfigPrefs(
+   wxWindow * parent, wxWindowID winid, AudacityProject *pProject,
    const CommandID &name)
 /* i18n-hint: as in computer keyboard (not musical!) */
 :  PrefsPanel(parent, winid, XO("Keyboard")),
@@ -89,6 +90,7 @@ KeyConfigPrefs::KeyConfigPrefs(wxWindow * parent, wxWindowID winid,
    mFilter(NULL),
    mFilterTimer(this, FilterTimerID),
    mFilterPending(false)
+   , mProject{ pProject }
 {
    Populate();
    if (!name.empty()) {
@@ -115,9 +117,8 @@ wxString KeyConfigPrefs::HelpPageName()
 void KeyConfigPrefs::Populate()
 {
    ShuttleGui S(this, eIsCreatingFromPrefs);
-   AudacityProject *project = GetActiveProject();
 
-   if (!project) {
+   if (!mProject) {
       S.StartVerticalLay(true);
       {
          S.StartStatic( {}, true);
@@ -136,7 +137,7 @@ void KeyConfigPrefs::Populate()
 
    mCommandSelected = wxNOT_FOUND;
 
-   mManager = &CommandManager::Get( *project );
+   mManager = &CommandManager::Get( *mProject );
 
    // For speed, don't sort here.  We're just creating.
    // Instead sort when we do SetView later in this function.
@@ -669,7 +670,7 @@ bool KeyConfigPrefs::Commit()
    // either.  So we can't attempt to save preferences, otherwise
    // NULL ptr dereferences will happen in ShuttleGui because the
    // radio buttons are never created.  (See Populate() above.)
-   if (!GetActiveProject()) {
+   if ( !mProject ) {
       return true;
    }
 
@@ -714,10 +715,10 @@ void KeyConfigPrefs::Cancel()
 PrefsPanel::Factory
 KeyConfigPrefsFactory( const CommandID &name )
 {
-   return [=](wxWindow *parent, wxWindowID winid, AudacityProject *)
+   return [=](wxWindow *parent, wxWindowID winid, AudacityProject *pProject)
    {
       wxASSERT(parent); // to justify safenew
-      auto result = safenew KeyConfigPrefs{ parent, winid, name };
+      auto result = safenew KeyConfigPrefs{ parent, winid, pProject, name };
       return result;
    };
 }

src/prefs/KeyConfigPrefs.h

@@ -32,7 +32,9 @@ enum ViewByType : int;
 class KeyConfigPrefs final : public PrefsPanel
 {
 public:
-   KeyConfigPrefs(wxWindow * parent, wxWindowID winid, const CommandID &name);
+   KeyConfigPrefs(wxWindow * parent, wxWindowID winid,
+      AudacityProject *pProject,
+      const CommandID &name);
    ComponentInterfaceSymbol GetSymbol() override;
    TranslatableString GetDescription() override;
 
@@ -80,6 +82,8 @@ private:
    wxRadioButton *mViewByName;
    wxRadioButton *mViewByKey;
 
+   AudacityProject *mProject{};
+
    CommandManager *mManager;
    int mCommandSelected;
 

src/prefs/SpectrumPrefs.cpp

@@ -37,8 +37,10 @@
 
 #include "../widgets/AudacityMessageBox.h"
 
-SpectrumPrefs::SpectrumPrefs(wxWindow * parent, wxWindowID winid, WaveTrack *wt)
+SpectrumPrefs::SpectrumPrefs(wxWindow * parent, wxWindowID winid,
+   AudacityProject *pProject, WaveTrack *wt)
 :  PrefsPanel(parent, winid, wt ? XO("Spectrogram Settings") : XO("Spectrograms"))
+, mProject{ pProject }
 , mWt(wt)
 , mPopulating(false)
 {
@@ -429,9 +431,8 @@ void SpectrumPrefs::Rollback()
    }
 
    if (isOpenPage) {
-      auto pProject = ::GetActiveProject();
+      if ( mProject ) {
-      if ( pProject ) {
+         auto &tp = TrackPanel::Get ( *mProject );
-         auto &tp = TrackPanel::Get ( *pProject );
          tp.UpdateVRulers();
          tp.Refresh(false);
       }
@@ -480,9 +481,8 @@ void SpectrumPrefs::Preview()
    }
 
    if (isOpenPage) {
-      auto pProject = ::GetActiveProject();
+      if ( mProject ) {
-      if ( pProject ) {
+         auto &tp = TrackPanel::Get( *mProject );
-         auto &tp = TrackPanel::Get( *pProject );
          tp.UpdateVRulers();
          tp.Refresh(false);
       }
@@ -506,7 +506,7 @@ bool SpectrumPrefs::Commit()
 
 bool SpectrumPrefs::ShowsPreviewButton()
 {
-   return GetActiveProject() != nullptr;
+   return mProject != nullptr;
 }
 
 void SpectrumPrefs::OnControl(wxCommandEvent&)
@@ -588,9 +588,9 @@ END_EVENT_TABLE()
 PrefsPanel::Factory
 SpectrumPrefsFactory( WaveTrack *wt )
 {
-   return [=](wxWindow *parent, wxWindowID winid, AudacityProject *)
+   return [=](wxWindow *parent, wxWindowID winid, AudacityProject *pProject)
    {
       wxASSERT(parent); // to justify safenew
-      return safenew SpectrumPrefs(parent, winid, wt);
+      return safenew SpectrumPrefs(parent, winid, pProject, wt);
    };
 }

src/prefs/SpectrumPrefs.h

@@ -46,7 +46,8 @@ struct WaveTrackSubViewPlacement;
 class SpectrumPrefs final : public PrefsPanel
 {
  public:
-   SpectrumPrefs(wxWindow * parent, wxWindowID winid, WaveTrack *wt);
+   SpectrumPrefs(wxWindow * parent, wxWindowID winid,
+      AudacityProject *pProject, WaveTrack *wt);
    virtual ~SpectrumPrefs();
    ComponentInterfaceSymbol GetSymbol() override;
    TranslatableString GetDescription() override;
@@ -71,6 +72,8 @@ class SpectrumPrefs final : public PrefsPanel
 
    void EnableDisableSTFTOnlyControls();
 
+   AudacityProject *mProject{};
+
    WaveTrack *const mWt;
    bool mDefaulted, mOrigDefaulted;
 

src/prefs/WaveformPrefs.cpp

@@ -30,9 +30,11 @@ Paul Licameli
 #include "../tracks/playabletrack/wavetrack/ui/WaveTrackView.h"
 #include "../tracks/playabletrack/wavetrack/ui/WaveTrackViewConstants.h"
 
-WaveformPrefs::WaveformPrefs(wxWindow * parent, wxWindowID winid, WaveTrack *wt)
+WaveformPrefs::WaveformPrefs(wxWindow * parent, wxWindowID winid,
+   AudacityProject *pProject, WaveTrack *wt)
 /* i18n-hint: A waveform is a visual representation of vibration */
 : PrefsPanel(parent, winid, XO("Waveforms"))
+, mProject{ pProject }
 , mWt(wt)
 , mPopulating(false)
 {
@@ -191,9 +193,8 @@ bool WaveformPrefs::Commit()
    }
 
    if (isOpenPage) {
-      auto pProject = ::GetActiveProject();
+      if ( mProject ) {
-      if ( pProject ) {
+         auto &tp = TrackPanel::Get( *mProject );
-         auto &tp = TrackPanel::Get( *pProject );
          tp.UpdateVRulers();
          tp.Refresh(false);
       }
@@ -256,9 +257,9 @@ END_EVENT_TABLE()
 PrefsPanel::Factory
 WaveformPrefsFactory(WaveTrack *wt)
 {
-   return [=](wxWindow *parent, wxWindowID winid, AudacityProject *)
+   return [=](wxWindow *parent, wxWindowID winid, AudacityProject *pProject)
    {
       wxASSERT(parent); // to justify safenew
-      return safenew WaveformPrefs(parent, winid, wt);
+      return safenew WaveformPrefs(parent, winid, pProject, wt);
    };
 }

src/prefs/WaveformPrefs.h

@@ -27,7 +27,8 @@ class wxArrayStringEx;
 class WaveformPrefs final : public PrefsPanel
 {
 public:
-   WaveformPrefs(wxWindow * parent, wxWindowID winid, WaveTrack *wt);
+   WaveformPrefs(wxWindow * parent, wxWindowID winid,
+      AudacityProject *pProject, WaveTrack *wt);
    virtual ~WaveformPrefs();
    ComponentInterfaceSymbol GetSymbol() override;
    TranslatableString GetDescription() override;
@@ -48,6 +49,8 @@ private:
 
    void EnableDisableRange();
 
+   AudacityProject *mProject{};
+
    WaveTrack *const mWt;
    bool mDefaulted;