TrackPanelListener.h

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/**********************************************************************
 
  Audacity: A Digital Audio Editor
 
  TrackPanelListener.h
 
  Dominic Mazzoni
 
**********************************************************************/
 
#ifndef __AUDACITY_TRACK_PANEL_LISTENER__
#define __AUDACITY_TRACK_PANEL_LISTENER__
 
 
 
enum class UndoPush : unsigned char;
 
/*
\brief A now badly named abstract class which was a failed attempt to let
TrackPanel code pretend it doesn't completely know what an AudacityProject is
and use only a limited number of its services.
*/
class AUDACITY_DLL_API TrackPanelListener /* not final */ {
 
 public:
   TrackPanelListener(){};
   virtual ~TrackPanelListener(){};
 
   virtual void TP_RedrawScrollbars() = 0;
   virtual void TP_ScrollLeft() = 0;
   virtual void TP_ScrollRight() = 0;
   virtual void TP_ScrollWindow(double scrollto) = 0;
   virtual bool TP_ScrollUpDown(int delta) = 0;
   virtual void TP_HandleResize() = 0;
};
 
#endif