ProjectAudioIO.h

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/**********************************************************************
 
Audacity: A Digital Audio Editor
 
ProjectAudioIO.h
 
Paul Licameli split from AudacityProject.h
 
**********************************************************************/
 
#ifndef __PROJECT_AUDIO_IO__
#define __PROJECT_AUDIO_IO__
 
#include "ClientData.h" // to inherit
#include <wx/weakref.h>
 
class AudacityProject;
 
// Windows build needs complete type for parameter of wxWeakRef
// class MeterPanelBase;
#include "widgets/MeterPanelBase.h"
 
class AUDACITY_DLL_API ProjectAudioIO final
   : public ClientData::Base
{
public:
   static ProjectAudioIO &Get( AudacityProject &project );
   static const ProjectAudioIO &Get( const AudacityProject &project );
 
   explicit ProjectAudioIO( AudacityProject &project );
   ProjectAudioIO( const ProjectAudioIO & ) PROHIBITED;
   ProjectAudioIO &operator=( const ProjectAudioIO & ) PROHIBITED;
   ~ProjectAudioIO();
 
   int GetAudioIOToken() const;
   bool IsAudioActive() const;
   void SetAudioIOToken(int token);
 
   MeterPanelBase *GetPlaybackMeter();
   void SetPlaybackMeter(MeterPanelBase *playback);
   MeterPanelBase *GetCaptureMeter();
   void SetCaptureMeter(MeterPanelBase *capture);
 
private:
   AudacityProject &mProject;
 
   // Project owned meters
   wxWeakRef<MeterPanelBase> mPlaybackMeter{};
   wxWeakRef<MeterPanelBase> mCaptureMeter{};
 
   int  mAudioIOToken{ -1 };
};
 
#endif