ProjectSelectionManager.h

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/**********************************************************************
 
Audacity: A Digital Audio Editor
 
ProjectSelectionManager.cpp
 
Paul Licameli split from ProjectManager.cpp
 
**********************************************************************/
 
#ifndef __AUDACITY_PROJECT_SELECTION_MANAGER__
#define __AUDACITY_PROJECT_SELECTION_MANAGER__
 
#include "ClientData.h" // to inherit
#include "toolbars/SelectionBarListener.h" // to inherit
#include "toolbars/SpectralSelectionBarListener.h" // to inherit
#include "ComponentInterfaceSymbol.h"
#include "Observer.h"
 
class AudacityProject;
 
class AUDACITY_DLL_API ProjectSelectionManager final
   : public ClientData::Base
   , public SelectionBarListener
   , public SpectralSelectionBarListener
   , public TimeToolBarListener
{
public:
   static ProjectSelectionManager &Get( AudacityProject &project );
   static const ProjectSelectionManager &Get( const AudacityProject &project );
 
   explicit ProjectSelectionManager( AudacityProject &project );
   ProjectSelectionManager( const ProjectSelectionManager & ) PROHIBITED;
   ProjectSelectionManager &operator=(
      const ProjectSelectionManager & ) PROHIBITED;
   ~ProjectSelectionManager() override;
 
   // SelectionBarListener callback methods
   const NumericFormatSymbol & AS_GetSelectionFormat() override;
   void AS_SetSelectionFormat(const NumericFormatSymbol & format) override;
   const NumericFormatSymbol & TT_GetAudioTimeFormat() override;
   void TT_SetAudioTimeFormat(const NumericFormatSymbol & format) override;
   void AS_ModifySelection(double &start, double &end, bool done) override;
 
   // SpectralSelectionBarListener callback methods
   double SSBL_GetRate() const override;
   const NumericFormatSymbol & SSBL_GetFrequencySelectionFormatName() override;
   void SSBL_SetFrequencySelectionFormatName(
      const NumericFormatSymbol & formatName) override;
   const NumericFormatSymbol & SSBL_GetBandwidthSelectionFormatName() override;
   void SSBL_SetBandwidthSelectionFormatName(
      const NumericFormatSymbol & formatName) override;
   void SSBL_ModifySpectralSelection(
      double &bottom, double &top, bool done) override;
 
private:
   void SnapSelection();
 
   AudacityProject &mProject;
 
   Observer::Subscription mSnappingChangedSubscription;
   Observer::Subscription mTimeSignatureChangedSubscription;
   Observer::Subscription mProjectRateChangedSubscription;
};
 
#endif