Start work on new Compressor2 effect.

Add skeleton files and add them to build systems.

Signed-off-by: Max Maisel <max.maisel@posteo.de>

src/CMakeLists.txt

@@ -432,6 +432,8 @@ list( APPEND SOURCES PRIVATE
   effects/ClickRemoval.h
   effects/Compressor.cpp
   effects/Compressor.h
+  effects/Compressor2.cpp
+  effects/Compressor2.h
   effects/Contrast.cpp
   effects/Contrast.h
   effects/Distortion.cpp

src/effects/Compressor2.cpp

@@ -0,0 +1,151 @@
+/**********************************************************************
+
+  Audacity: A Digital Audio Editor
+
+  Compressor2.cpp
+
+  Max Maisel
+
+*******************************************************************//**
+
+\class EffectCompressor2
+\brief An Effect which reduces the dynamic level.
+
+*//*******************************************************************/
+
+
+#include "../Audacity.h" // for rint from configwin.h
+#include "Compressor2.h"
+
+#include <math.h>
+
+#include <wx/intl.h>
+#include <wx/valgen.h>
+
+#include "../Internat.h"
+#include "../Prefs.h"
+#include "../ProjectFileManager.h"
+#include "../Shuttle.h"
+#include "../ShuttleGui.h"
+#include "../WaveTrack.h"
+#include "../widgets/valnum.h"
+#include "../widgets/ProgressDialog.h"
+
+#include "LoadEffects.h"
+
+BEGIN_EVENT_TABLE(EffectCompressor2, wxEvtHandler)
+END_EVENT_TABLE()
+
+const ComponentInterfaceSymbol EffectCompressor2::Symbol
+{ XO("Compressor v2") };
+
+namespace{ BuiltinEffectsModule::Registration< EffectCompressor2 > reg; }
+
+EffectCompressor2::EffectCompressor2()
+{
+   SetLinearEffectFlag(false);
+}
+
+EffectCompressor2::~EffectCompressor2()
+{
+}
+
+// ComponentInterface implementation
+
+ComponentInterfaceSymbol EffectCompressor2::GetSymbol()
+{
+   return Symbol;
+}
+
+TranslatableString EffectCompressor2::GetDescription()
+{
+   return XO("Reduces the dynamic of one or more tracks");
+}
+
+ManualPageID EffectCompressor2::ManualPage()
+{
+   return L"Compressor2";
+}
+
+// EffectDefinitionInterface implementation
+
+EffectType EffectCompressor2::GetType()
+{
+   return EffectTypeProcess;
+}
+
+// EffectClientInterface implementation
+bool EffectCompressor2::DefineParams( ShuttleParams & S )
+{
+   return true;
+}
+
+bool EffectCompressor2::GetAutomationParameters(CommandParameters & parms)
+{
+   return true;
+}
+
+bool EffectCompressor2::SetAutomationParameters(CommandParameters & parms)
+{
+   return true;
+}
+
+// Effect implementation
+
+bool EffectCompressor2::CheckWhetherSkipEffect()
+{
+   return false;
+}
+
+bool EffectCompressor2::Startup()
+{
+   wxString base = wxT("/Effects/Compressor2/");
+   // Load the old "current" settings
+   if (gPrefs->Exists(base))
+   {
+      SaveUserPreset(GetCurrentSettingsGroup());
+
+      gPrefs->Flush();
+   }
+   return true;
+}
+
+bool EffectCompressor2::Process()
+{
+   return false;
+}
+
+void EffectCompressor2::PopulateOrExchange(ShuttleGui & S)
+{
+}
+
+bool EffectCompressor2::TransferDataToWindow()
+{
+   if (!mUIParent->TransferDataToWindow())
+   {
+      return false;
+   }
+
+   UpdateUI();
+   return true;
+}
+
+bool EffectCompressor2::TransferDataFromWindow()
+{
+   if (!mUIParent->Validate() || !mUIParent->TransferDataFromWindow())
+   {
+      return false;
+   }
+   return true;
+}
+
+// EffectCompressor2 implementation
+
+void EffectCompressor2::OnUpdateUI(wxCommandEvent & WXUNUSED(evt))
+{
+   UpdateUI();
+}
+
+void EffectCompressor2::UpdateUI()
+{
+}

src/effects/Compressor2.h

@@ -0,0 +1,70 @@
+/**********************************************************************
+
+  Audacity: A Digital Audio Editor
+
+  Compressor2.h
+
+  Max Maisel (based on Compressor effect)
+
+**********************************************************************/
+
+#ifndef __AUDACITY_EFFECT_COMPRESSOR2__
+#define __AUDACITY_EFFECT_COMPRESSOR2__
+
+#include <wx/checkbox.h>
+#include <wx/choice.h>
+#include <wx/event.h>
+#include <wx/stattext.h>
+#include <wx/string.h>
+#include <wx/textctrl.h>
+
+#include "Effect.h"
+
+class ShuttleGui;
+
+class EffectCompressor2 final : public Effect
+{
+public:
+   static const ComponentInterfaceSymbol Symbol;
+
+   EffectCompressor2();
+   virtual ~EffectCompressor2();
+
+   // ComponentInterface implementation
+
+   ComponentInterfaceSymbol GetSymbol() override;
+   TranslatableString GetDescription() override;
+   ManualPageID ManualPage() override;
+
+   // EffectDefinitionInterface implementation
+
+   EffectType GetType() override;
+
+   // EffectClientInterface implementation
+
+   bool DefineParams( ShuttleParams & S ) override;
+   bool GetAutomationParameters(CommandParameters & parms) override;
+   bool SetAutomationParameters(CommandParameters & parms) override;
+
+   // Effect implementation
+
+   bool CheckWhetherSkipEffect() override;
+   bool Startup() override;
+   bool Process() override;
+   void PopulateOrExchange(ShuttleGui & S) override;
+   bool TransferDataToWindow() override;
+   bool TransferDataFromWindow() override;
+
+private:
+   // EffectCompressor2 implementation
+
+   bool UpdateProgress();
+   void OnUpdateUI(wxCommandEvent & evt);
+   void UpdateUI();
+
+private:
+
+   DECLARE_EVENT_TABLE()
+};
+
+#endif