C++ ShuttleGui::AddChoice方法代码示例

void EffectLeveller::PopulateOrExchange(ShuttleGui & S)
{
   wxASSERT(kNumPasses == WXSIZEOF(kPassStrings));

   wxArrayString passChoices;
   for (int i = 0; i < kNumPasses; i++)
   {
      passChoices.Add(wxGetTranslation(kPassStrings[i]));
   }

   wxArrayString dBChoices(Enums::NumDbChoices,Enums::GetDbChoices());

   S.SetBorder(5);

   S.StartVerticalLay();
   {
      S.AddSpace(5);
      S.StartMultiColumn(2, wxALIGN_CENTER);
      {
         S.AddChoice(_("Degree of Leveling:"),
                     wxT(""),
                     &passChoices)->SetValidator(wxGenericValidator(&mPassIndex));
         S.AddChoice(_("Noise Threshold:"),
                     wxT(""),
                     &dBChoices)->SetValidator(wxGenericValidator(&mDbIndex));
      }
      S.EndMultiColumn();
   }
   S.EndVerticalLay();

   return;
}

void MidiIOPrefs::PopulateOrExchange( ShuttleGui & S ) {
   wxArrayString empty;

   S.SetBorder(2);

   S.StartStatic(_("Interface"));
   {
      S.StartMultiColumn(2);
      {
         S.Id(HostID);
         mHost = S.TieChoice(_("Host") + wxString(wxT(":")),
                             wxT("/MidiIO/Host"), 
                             wxT(""),
                             mHostNames,
                             mHostLabels);
         S.SetSizeHints(mHostNames);

         S.AddPrompt(_("Using:"));
         S.AddFixedText(wxString(Pa_GetVersionText(), wxConvLocal));
      }
      S.EndMultiColumn();
   }                              
   S.EndStatic();

   S.StartStatic(_("Playback"));
   {
      S.StartMultiColumn(2);
      {
         S.Id(PlayID);
         mPlay = S.AddChoice(_("Device") + wxString(wxT(":")),
                             wxEmptyString,
                             &empty);
      }
      S.EndMultiColumn();
   }
   S.EndStatic();

   S.StartStatic(_("Recording"));
   {
      S.StartMultiColumn(2);
      {
         S.Id(RecordID);
         mRecord = S.AddChoice(_("Device") + wxString(wxT(":")),
                               wxEmptyString,
                               &empty);

         S.Id(ChannelsID);
         /*
         mChannels = S.AddChoice(_("Channels") + wxString(wxT(":")),
                                 wxEmptyString,
                                 &empty);
         */
      }
      S.EndMultiColumn();
   }
   S.EndStatic();
}

void EffectNoise::PopulateOrExchange(ShuttleGui & S)
{
   wxASSERT(nTypes == WXSIZEOF(kTypeStrings));

   S.StartMultiColumn(2, wxCENTER);
   {
      auto typeChoices = LocalizedStrings(kTypeStrings, nTypes);
      S.AddChoice(_("Noise type:"), wxT(""), &typeChoices)->SetValidator(wxGenericValidator(&mType));

      FloatingPointValidator<double> vldAmp(6, &mAmp, NumValidatorStyle::NO_TRAILING_ZEROES);
      vldAmp.SetRange(MIN_Amp, MAX_Amp);
      S.AddTextBox(_("Amplitude (0-1):"), wxT(""), 12)->SetValidator(vldAmp);

      S.AddPrompt(_("Duration:"));
      mNoiseDurationT = safenew
         NumericTextCtrl(S.GetParent(), wxID_ANY,
                         NumericConverter::TIME,
                         GetDurationFormat(),
                         GetDuration(),
                         mProjectRate,
                         NumericTextCtrl::Options{}
                            .AutoPos(true));
      mNoiseDurationT->SetName(_("Duration"));
      S.AddWindow(mNoiseDurationT, wxALIGN_LEFT | wxALIGN_CENTER_VERTICAL | wxALL);
   }
   S.EndMultiColumn();
}

void EffectNoise::PopulateOrExchange(ShuttleGui & S)
{
   wxASSERT(kNumTypes == WXSIZEOF(kTypeStrings));

   wxArrayString typeChoices;
   for (int i = 0; i < kNumTypes; i++)
   {
      typeChoices.Add(wxGetTranslation(kTypeStrings[i]));
   }

   S.StartMultiColumn(2, wxCENTER);
   {
      S.AddChoice(_("Noise type:"), wxT(""), &typeChoices)->SetValidator(wxGenericValidator(&mType));

      FloatingPointValidator<double> vldAmp(6, &mAmp, NUM_VAL_NO_TRAILING_ZEROES);
      vldAmp.SetRange(MIN_Amp, MAX_Amp);
      S.AddTextBox(_("Amplitude (0-1):"), wxT(""), 12)->SetValidator(vldAmp);

      S.AddPrompt(_("Duration:"));
      mNoiseDurationT = new
         NumericTextCtrl(NumericConverter::TIME,
                         S.GetParent(),
                         wxID_ANY,
                         GetDurationFormat(),
                         GetDuration(),
                         mProjectRate,
                         wxDefaultPosition,
                         wxDefaultSize,
                         true);
      mNoiseDurationT->SetName(_("Duration"));
      mNoiseDurationT->EnableMenu();
      S.AddWindow(mNoiseDurationT, wxALIGN_LEFT | wxALIGN_CENTER_VERTICAL | wxALL);
   }
   S.EndMultiColumn();
}

/// Normally in classes derived from PrefsPanel this function 
/// is used both to populate the panel and to exchange data with it.
/// With KeyConfigPrefs all the exchanges are handled specially,
/// so this is only used in populating the panel.
void KeyConfigPrefs::PopulateOrExchange(ShuttleGui & S)
{
   S.SetBorder(2);

   S.StartStatic(_("Key Bindings"), 1);
   {
      S.StartHorizontalLay(wxALIGN_CENTRE, false);
      {
         S.Id(CategoryID);
         mCat = S.AddChoice(_("C&ategory:"),
                            mCats[0],
                            &mCats);
      }
      S.EndHorizontalLay();
                                    
      mList = S.Id(CommandsListID).AddListControlReportMode();
      mList->SetName(_("Key Bindings"));

      S.StartThreeColumn();
      {
         if (!mKey) {
            mKey = new wxTextCtrl(this,
                                  CurrentComboID,
                                  wxT(""),
                                  wxDefaultPosition,
#if defined(__WXMAC__)                                  
                                  wxSize(300, -1));
#else
                                  wxSize(210, -1));
#endif
            mKey->Connect(wxEVT_KEY_DOWN,
                          wxKeyEventHandler(KeyConfigPrefs::OnCaptureKeyDown));
            mKey->Connect(wxEVT_CHAR,
                          wxKeyEventHandler(KeyConfigPrefs::OnCaptureChar));
         }
         S.AddWindow(mKey);

         /* i18n-hint: (verb)*/
         S.Id(SetButtonID).AddButton(_("Set"));
         S.Id(ClearButtonID).AddButton(_("Cl&ear"));
      }
      S.EndThreeColumn();

#if defined(__WXMAC__)
      S.AddFixedText(_("Note: Pressing Cmd+Q will quit. All other keys are valid."));
#endif

      S.StartThreeColumn();
      {
         S.Id(ImportButtonID).AddButton(_("&Import..."));
         S.Id(ExportButtonID).AddButton(_("&Export..."));
         S.Id(AssignDefaultsButtonID).AddButton(_("&Defaults"));
      }
      S.EndThreeColumn();
   }

void EffectTruncSilence::PopulateOrExchange(ShuttleGui & S)
{
   wxASSERT(kNumActions == WXSIZEOF(kActionStrings));

   wxArrayString actionChoices;
   for (int i = 0; i < kNumActions; i++)
   {
      actionChoices.Add(wxGetTranslation(kActionStrings[i]));
   }

   S.AddSpace(0, 5);

   S.StartStatic(_("Detect Silence"));
   {
      S.StartMultiColumn(3, wxALIGN_CENTER_HORIZONTAL);
      {
         // Threshold
         mTruncDbChoice = S.AddChoice(_("Level:"), wxT(""), &mDbChoices);
         mTruncDbChoice->SetValidator(wxGenericValidator(&mTruncDbChoiceIndex));
         S.SetSizeHints(-1, -1);
         S.AddSpace(0); // 'choices' already includes units.

         // Ignored silence
         FloatingPointValidator<double> vldDur(3, &mInitialAllowedSilence, NUM_VAL_NO_TRAILING_ZEROES);
         vldDur.SetRange(MIN_Minimum, MAX_Minimum);
         mInitialAllowedSilenceT = S.AddTextBox(_("Duration:"), wxT(""), 12);
         mInitialAllowedSilenceT->SetValidator(vldDur);
         S.AddUnits(wxT("seconds"));
      }
      S.EndMultiColumn();
   }
   S.EndStatic();

   S.StartStatic(_("Action"));
   {
      S.StartHorizontalLay();
      {
         // Action choices
         mActionChoice = S.AddChoice(wxT(""), wxT(""), &actionChoices);
         mActionChoice->SetValidator(wxGenericValidator(&mActionIndex));
         S.SetSizeHints(-1, -1);
      }
      S.EndHorizontalLay();
      S.StartMultiColumn(3, wxALIGN_CENTER_HORIZONTAL);
      {
         // Truncation / Compression factor

         FloatingPointValidator<double> vldTrunc(3, &mTruncLongestAllowedSilence, NUM_VAL_NO_TRAILING_ZEROES);
         vldTrunc.SetRange(MIN_Truncate, MAX_Truncate);
         mTruncLongestAllowedSilenceT = S.AddTextBox(_("Truncate to:"), wxT(""), 12);
         mTruncLongestAllowedSilenceT->SetValidator(vldTrunc);
         S.AddUnits(wxT("seconds"));

         FloatingPointValidator<double> vldComp(3, &mSilenceCompressPercent, NUM_VAL_NO_TRAILING_ZEROES);
         vldComp.SetRange(MIN_Compress, MAX_Compress);
         mSilenceCompressPercentT = S.AddTextBox(_("Compress to:"), wxT(""), 12);
         mSilenceCompressPercentT->SetValidator(vldComp);
         S.AddUnits(wxT("percent"));
      }
      S.EndMultiColumn();

      S.StartMultiColumn(2, wxALIGN_CENTER_HORIZONTAL);
      {
         mIndependent = S.AddCheckBox(_("Truncate tracks independently"),
            mbIndependent ? wxT("true") : wxT("false"));
      }
   S.EndMultiColumn();
}
   S.EndStatic();

   UpdateUI();
}

void MidiIOPrefs::PopulateOrExchange( ShuttleGui & S ) {
   wxArrayString empty;

   S.SetBorder(2);

   S.StartStatic(_("Interface"));
   {
      S.StartMultiColumn(2);
      {
         S.Id(HostID);
         /* i18n-hint: (noun) */
         mHost = S.TieChoice(_("Host") + wxString(wxT(":")),
                             wxT("/MidiIO/Host"), 
                             wxT(""),
                             mHostNames,
                             mHostLabels);
         S.SetSizeHints(mHostNames);

         S.AddPrompt(_("Using: PortMidi"));
      }
      S.EndMultiColumn();
   }                              
   S.EndStatic();

   S.StartStatic(_("Playback"));
   {
      S.StartMultiColumn(2);
      {
         S.Id(PlayID);
         mPlay = S.AddChoice(_("Device") + wxString(wxT(":")),
                             wxEmptyString,
                             &empty);
         int latency = gPrefs->Read(wxT("/MidiIO/OutputLatency"), 
                                    DEFAULT_SYNTH_LATENCY);
         mLatency = S.TieNumericTextBox(_("MIDI Synthesizer Latency (ms):"),
                                        wxT("/MidiIO/SynthLatency"),
                                        latency, 3);
      }
      S.EndMultiColumn();
   }
   S.EndStatic();
#ifdef EXPERIMENTAL_MIDI_IN
   S.StartStatic(_("Recording"));
   {
      S.StartMultiColumn(2);
      {
         S.Id(RecordID);
         mRecord = S.AddChoice(_("Device") + wxString(wxT(":")),
                               wxEmptyString,
                               &empty);

         S.Id(ChannelsID);
         /*
         mChannels = S.AddChoice(_("Channels") + wxString(wxT(":")),
                                 wxEmptyString,
                                 &empty);
         */
      }
      S.EndMultiColumn();
   }
   S.EndStatic();
#endif
}

void EffectToneGen::PopulateOrExchange(ShuttleGui & S)
{
   wxTextCtrl *t;

   S.StartMultiColumn(2, wxCENTER);
   {
      wxChoice *c = S.AddChoice(_("Waveform:"), wxT(""), &mWaveforms);
      c->SetValidator(wxGenericValidator(&mWaveform));

      if (mChirp)
      {
         S.AddFixedText(wxT(""));
         S.StartHorizontalLay(wxEXPAND);
         {
            S.StartHorizontalLay(wxLEFT, 50);
            {
               S.AddTitle(_("Start"));
            }
            S.EndHorizontalLay();

            S.StartHorizontalLay(wxLEFT, 50);
            {
               S.AddTitle(_("End"));
            }
            S.EndHorizontalLay();
         }
         S.EndHorizontalLay();

         S.AddPrompt(_("Frequency (Hz):"));
         S.StartHorizontalLay(wxEXPAND);
         {
            S.StartHorizontalLay(wxLEFT, 50);
            {
               FloatingPointValidator<double> vldStartFreq(6, &mFrequency[0], NUM_VAL_NO_TRAILING_ZEROES);
               vldStartFreq.SetRange(MIN_StartFreq, GetActiveProject()->GetRate() / 2.0);
               t = S.AddTextBox(wxT(""), wxT(""), 12);
               t->SetName(_("Frequency Hertz Start"));
               t->SetValidator(vldStartFreq);
            }
            S.EndHorizontalLay();

            S.StartHorizontalLay(wxLEFT, 50);
            {
               FloatingPointValidator<double> vldEndFreq(6, &mFrequency[1], NUM_VAL_NO_TRAILING_ZEROES);
               vldEndFreq.SetRange(MIN_EndFreq, GetActiveProject()->GetRate() / 2.0);
               t = S.AddTextBox(wxT(""), wxT(""), 12);
               t->SetName(_("Frequency Hertz End"));
               t->SetValidator(vldEndFreq);
            }
            S.EndHorizontalLay();
         }
         S.EndHorizontalLay();

         S.AddPrompt(_("Amplitude (Hz):"));
         S.StartHorizontalLay(wxEXPAND);
         {
            S.StartHorizontalLay(wxLEFT, 50);
            {
               FloatingPointValidator<double> vldStartAmp(6, &mAmplitude[0], NUM_VAL_NO_TRAILING_ZEROES);
               vldStartAmp.SetRange(MIN_StartAmp, MAX_StartAmp);
               t = S.AddTextBox(wxT(""), wxT(""), 12);
               t->SetName(_("Amplitude Start"));
               t->SetValidator(vldStartAmp);
            }
            S.EndHorizontalLay();

            S.StartHorizontalLay(wxLEFT, 50);
            {
               FloatingPointValidator<double> vldEndAmp(6, &mAmplitude[1], NUM_VAL_NO_TRAILING_ZEROES);
               vldEndAmp.SetRange(MIN_EndAmp, MAX_EndAmp);
               t = S.AddTextBox(wxT(""), wxT(""), 12);
               t->SetName(_("Amplitude End"));
               t->SetValidator(vldEndAmp);
            }
            S.EndHorizontalLay();
         }
         S.EndHorizontalLay();

         c = S.AddChoice(_("Interpolation:"), wxT(""), &mInterpolations);
         c->SetValidator(wxGenericValidator(&mInterpolation));
      }
      else
      {
         FloatingPointValidator<double> vldFrequency(6, &mFrequency[0], NUM_VAL_NO_TRAILING_ZEROES);
         vldFrequency.SetRange(MIN_Frequency, GetActiveProject()->GetRate() / 2.0);
         t = S.AddTextBox(_("Frequency (Hz):"), wxT(""), 12);
         t->SetValidator(vldFrequency);

         FloatingPointValidator<double> vldAmplitude(6, &mAmplitude[0], NUM_VAL_NO_TRAILING_ZEROES);
         vldAmplitude.SetRange(MIN_Amplitude, MAX_Amplitude);
         t = S.AddTextBox(_("Amplitude (0-1):"), wxT(""), 12);
         t->SetValidator(vldAmplitude);
      }

      bool isSelection;
      double duration = GetDuration(&isSelection);

      S.AddPrompt(_("Duration:"));
      mToneDurationT = new
         NumericTextCtrl(NumericConverter::TIME,
//.........这里部分代码省略.........

void VampEffect::PopulateOrExchange(ShuttleGui & S)
{
   Vamp::Plugin::ProgramList programs = mPlugin->getPrograms();

   mParameters = mPlugin->getParameterDescriptors();

   auto count = mParameters.size();

   mToggles.reinit( count );
   mSliders.reinit( count );
   mFields.reinit( count );
   mLabels.reinit( count );
   mChoices.reinit( count );
   mValues.reinit( count );

   S.SetStyle(wxVSCROLL | wxTAB_TRAVERSAL);
   wxScrolledWindow *scroller = S.StartScroller(2);
   {
      S.StartStatic(_("Plugin Settings"));
      {
         S.StartMultiColumn(5, wxEXPAND);
         {
            S.SetStretchyCol(3);

            if (!programs.empty())
            {
               wxString currentProgram =  wxString::FromUTF8(mPlugin->getCurrentProgram().c_str());

               wxArrayStringEx choices;
               for (size_t i = 0, cnt = programs.size(); i < cnt; i++)
               {
                  choices.push_back(wxString::FromUTF8(programs[i].c_str()));
               }

               S.AddPrompt(_("Program"));

               S.Id(ID_Program);
               mProgram = S.AddChoice(
                  {},
                  choices,
                  choices.Index( currentProgram )
               );
               mProgram->SetName(_("Program"));
               mProgram->SetSizeHints(-1, -1);
               wxSizer *s = mProgram->GetContainingSizer();
               s->GetItem(mProgram)->SetFlag(wxEXPAND | wxALIGN_CENTER_VERTICAL | wxALL);

               S.AddSpace(1, 1);
               S.AddSpace(1, 1);
               S.AddSpace(1, 1);
            }

            for (size_t p = 0; p < count; p++)
            {
               wxString tip = wxString::FromUTF8(mParameters[p].description.c_str());
               wxString unit = wxString::FromUTF8(mParameters[p].unit.c_str());

               float value = mPlugin->getParameter(mParameters[p].identifier);

               mToggles[p] = NULL;
               mChoices[p] = NULL;
               mSliders[p] = NULL;
               mFields[p] = NULL;
               mValues[p] = 0.0;

               wxString labelText = wxString::FromUTF8(mParameters[p].name.c_str());
               if (!unit.empty())
               {
                  labelText += wxT(" (") + unit + wxT(")");
               }
               S.AddPrompt(labelText + wxT(":"));

               if (mParameters[p].isQuantized &&
                   mParameters[p].quantizeStep == 1.0 &&
                   mParameters[p].minValue == 0.0 &&
                   mParameters[p].maxValue == 1.0)
               {
                  S.Id(ID_Toggles + p);
                  mToggles[p] = S.AddCheckBox( {},
                                              value > 0.5);
                  mToggles[p]->SetName(labelText);
                  if (!tip.empty())
                  {
                     mToggles[p]->SetToolTip(tip);
                  }
                  wxSizer *s = mToggles[p]->GetContainingSizer();
                  s->GetItem(mToggles[p])->SetFlag(wxALIGN_LEFT | wxALIGN_CENTER_VERTICAL | wxALL);

                  S.AddSpace(1, 1);
                  S.AddSpace(1, 1);
                  S.AddSpace(1, 1);

               }
               else if (mParameters[p].isQuantized &&
                        mParameters[p].quantizeStep == 1.0 &&
                        !mParameters[p].valueNames.empty())
               {
                  wxArrayStringEx choices;
                  int selected = -1;

//.........这里部分代码省略.........

//.........这里部分代码省略.........
            * The string 'days' indicates that the first number in the control will be the number of days,
            * then the 'h' indicates the second number displayed is hours, the 'm' indicates the third
            * number displayed is minutes, and the 's' indicates that the fourth number displayed is
            * seconds.
            */
            wxString strFormat1 = _("099 days 024 h 060 m 060 s");
            m_pTimeTextCtrl_Duration = safenew NumericTextCtrl(
               this, ID_TIMETEXT_DURATION, NumericConverter::TIME,
               wxEmptyString, 0, 44100,
               Options{}
                  .MenuEnabled(false)
                  .Format(strFormat1)
                  .Value(true, m_TimeSpan_Duration.GetSeconds().ToDouble()));
            m_pTimeTextCtrl_Duration->SetName(_("Duration"));
            S.AddWindow(m_pTimeTextCtrl_Duration);
         }
         S.EndStatic();
      }
      S.EndVerticalLay();

      S.StartVerticalLay(true);
      {
         S.StartStatic(_("Automatic Save"), true);
         {
            // If checked, the project will be saved when the recording is completed
            m_pTimerAutoSaveCheckBoxCtrl = S.Id(ID_AUTOSAVE_CHECKBOX).AddCheckBox(_("Enable &Automatic Save?"),
                                                                                    (bAutoSave ? "true" : "false"));
            S.StartMultiColumn(3, wxEXPAND);
            {
               wxString sInitialValue = wxT("");
               AudacityProject* pProject = GetActiveProject();
               wxString sSaveValue = pProject->GetFileName();
               if (sSaveValue != wxEmptyString) {
                  m_fnAutoSaveFile.Assign(sSaveValue);
                  sInitialValue = _("Current Project");
               }
               S.AddPrompt(_("Save Project As:"));
               m_pTimerSavePathTextCtrl = NewPathControl(this, ID_AUTOSAVEPATH_TEXT, _("Save Project As:"), sInitialValue);
               m_pTimerSavePathTextCtrl->SetEditable(false);
               S.AddWindow(m_pTimerSavePathTextCtrl);
               m_pTimerSavePathButtonCtrl = S.Id(ID_AUTOSAVEPATH_BUTTON).AddButton(_("Select..."));
               }
            S.EndMultiColumn();
         }
         S.EndStatic();

         S.StartStatic(_("Automatic Export"), true);
         {
            m_pTimerAutoExportCheckBoxCtrl = S.Id(ID_AUTOEXPORT_CHECKBOX).AddCheckBox(_("Enable Automatic &Export?"), (bAutoExport ? "true" : "false"));
            S.StartMultiColumn(3, wxEXPAND);
            {
               S.AddPrompt(_("Export Project As:"));
               m_pTimerExportPathTextCtrl = NewPathControl(this, ID_AUTOEXPORTPATH_TEXT, _("Export Project As:"), wxT(""));
               m_pTimerExportPathTextCtrl->SetEditable(false);
               S.AddWindow(m_pTimerExportPathTextCtrl);
               m_pTimerExportPathButtonCtrl = S.Id(ID_AUTOEXPORTPATH_BUTTON).AddButton(_("Select..."));
            }
            S.EndMultiColumn();
         }
         S.EndStatic();

         S.StartStatic(_("Options"), true);
         {

            wxArrayString arrayOptions;
            arrayOptions.Add(_("Do nothing"));
            arrayOptions.Add(_("Exit Audacity"));
            arrayOptions.Add(_("Restart system"));
            arrayOptions.Add(_("Shutdown system"));

            m_sTimerAfterCompleteOptionsArray.Add(arrayOptions.Item(0));
            m_sTimerAfterCompleteOptionsArray.Add(arrayOptions.Item(1));
#ifdef __WINDOWS__
            m_sTimerAfterCompleteOptionsArray.Add(arrayOptions.Item(2));
            m_sTimerAfterCompleteOptionsArray.Add(arrayOptions.Item(3));
#endif
            m_sTimerAfterCompleteOption = arrayOptions.Item(iPostTimerRecordAction);

            m_pTimerAfterCompleteChoiceCtrl = S.AddChoice(_("After Recording completes:"),
                                                          m_sTimerAfterCompleteOption,
                                                          &m_sTimerAfterCompleteOptionsArray);
         }
         S.EndStatic();

      }
      S.EndVerticalLay();
   }
   S.EndMultiColumn();

   // MY: Added the help button here
   S.AddStandardButtons(eOkButton | eCancelButton | eHelpButton);

   Layout();
   Fit();
   SetMinSize(GetSize());
   Center();

   EnableDisableAutoControls(bAutoSave, CONTROL_GROUP_SAVE);
   EnableDisableAutoControls(bAutoExport, CONTROL_GROUP_EXPORT);
}

void EffectTruncSilence::PopulateOrExchange(ShuttleGui & S)
{
   wxASSERT(nActions == WXSIZEOF(kActionStrings));

   S.AddSpace(0, 5);

   S.StartStatic(_("Detect Silence"));
   {
      S.StartMultiColumn(3, wxALIGN_CENTER_HORIZONTAL);
      {
         // Threshold
         FloatingPointValidator<double> vldThreshold(3, &mThresholdDB,
            NumValidatorStyle::NO_TRAILING_ZEROES);
         vldThreshold.SetRange(MIN_Threshold, MAX_Threshold);
         mThresholdText = S.AddTextBox(_("Threshold:"), wxT(""), 0);
         mThresholdText->SetValidator(vldThreshold);
         S.AddUnits(_("dB"));

         // Ignored silence
         FloatingPointValidator<double> vldDur(3, &mInitialAllowedSilence, NumValidatorStyle::NO_TRAILING_ZEROES);
         vldDur.SetRange(MIN_Minimum, MAX_Minimum);
         mInitialAllowedSilenceT = S.AddTextBox(_("Duration:"), wxT(""), 12);
         mInitialAllowedSilenceT->SetValidator(vldDur);
         S.AddUnits(_("seconds"));
      }
      S.EndMultiColumn();
   }
   S.EndStatic();

   S.StartStatic(_("Action"));
   {
      S.StartHorizontalLay();
      {
         // Action choices
         auto actionChoices = LocalizedStrings(kActionStrings, nActions);
         mActionChoice = S.AddChoice( {}, wxT(""), &actionChoices);
         mActionChoice->SetValidator(wxGenericValidator(&mActionIndex));
         S.SetSizeHints(-1, -1);
      }
      S.EndHorizontalLay();
      S.StartMultiColumn(3, wxALIGN_CENTER_HORIZONTAL);
      {
         // Truncation / Compression factor

         FloatingPointValidator<double> vldTrunc(3, &mTruncLongestAllowedSilence, NumValidatorStyle::NO_TRAILING_ZEROES);
         vldTrunc.SetRange(MIN_Truncate, MAX_Truncate);
         mTruncLongestAllowedSilenceT = S.AddTextBox(_("Truncate to:"), wxT(""), 12);
         mTruncLongestAllowedSilenceT->SetValidator(vldTrunc);
         S.AddUnits(_("seconds"));

         FloatingPointValidator<double> vldComp(3, &mSilenceCompressPercent, NumValidatorStyle::NO_TRAILING_ZEROES);
         vldComp.SetRange(MIN_Compress, MAX_Compress);
         mSilenceCompressPercentT = S.AddTextBox(_("Compress to:"), wxT(""), 12);
         mSilenceCompressPercentT->SetValidator(vldComp);
         S.AddUnits(_("%"));
      }
      S.EndMultiColumn();

      S.StartMultiColumn(2, wxALIGN_CENTER_HORIZONTAL);
      {
         mIndependent = S.AddCheckBox(_("Truncate tracks independently"),
            mbIndependent ? wxT("true") : wxT("false"));
      }
   S.EndMultiColumn();
}
   S.EndStatic();

   UpdateUI();
}