WaveChannelVZoomHandle.h

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/**********************************************************************
 
Audacity: A Digital Audio Editor
 
WaveChannelVZoomHandle.h
 
Paul Licameli split from TrackPanel.cpp
 
**********************************************************************/
 
#ifndef __AUDACITY_WAVE_TRACK_VZOOM_HANDLE__
#define __AUDACITY_WAVE_TRACK_VZOOM_HANDLE__
 
class wxMouseState;
class PopupMenuTable;
class WaveChannel;
class WaveTrack;
#include "WaveChannelViewConstants.h"
#include "../../../../UIHandle.h"
#include "Prefs.h"
 
namespace WaveChannelVZoomHandle
{
   // See RefreshCode.h for bit flags:
   using Result = unsigned;
 
   AUDACITY_DLL_API
   HitTestPreview HitPreview(const bool bVZoom);
 
   AUDACITY_DLL_API
   bool IsDragZooming(int zoomStart, int zoomEnd, bool hasDragZoom);
 
   using DoZoomFunction = void (*)(AudacityProject *pProject,
       WaveChannel &wc,
       WaveChannelViewConstants::ZoomActions ZoomKind,
       const wxRect &rect, int zoomStart, int zoomEnd,
       bool fixedMousePoint);
 
   AUDACITY_DLL_API
   Result DoDrag(
      const TrackPanelMouseEvent &event, AudacityProject *pProject,
      int zoomStart, int &zoomEnd, bool hasDragZoom );
 
   AUDACITY_DLL_API
   Result DoRelease(
      const TrackPanelMouseEvent &event, AudacityProject *pProject,
      wxWindow *pParent, WaveChannel &wc, const wxRect &mRect,
      DoZoomFunction doZoom, PopupMenuTable &table,
      int zoomStart, int zoomEnd );
 
   AUDACITY_DLL_API
   void DoDraw(
      TrackPanelDrawingContext &context,
      const wxRect &rect, unsigned iPass, int zoomStart, int zoomEnd, bool hasDragZoom );
 
   AUDACITY_DLL_API
   wxRect DoDrawingArea(
      const wxRect &rect, const wxRect &panelRect, unsigned iPass );
};
 
#include "../../../../widgets/PopupMenuTable.h" // to inherit
 
class AUDACITY_DLL_API WaveChannelVRulerMenuTable
   : public PopupMenuTable
   , private PrefsListener
{
public:
   struct InitMenuData
   {
   public:
      AudacityProject &project;
      WaveChannel &wc;
      wxRect rect;
      unsigned result;
      int yy;
      WaveChannelVZoomHandle::DoZoomFunction doZoom;
   };
 
protected:
   WaveChannelVRulerMenuTable( const Identifier &id )
      : PopupMenuTable{ id }
   {}
 
   void InitUserData(void *pUserData) override;
 
protected:
   InitMenuData *mpData {};
 
   void OnZoom(WaveChannelViewConstants::ZoomActions iZoomCode);
   void OnZoomFitVertical(wxCommandEvent&)
      { OnZoom(WaveChannelViewConstants::kZoom1to1); }
   void OnZoomReset(wxCommandEvent&)
      { OnZoom(WaveChannelViewConstants::kZoomReset); }
   void OnZoomHalfWave(wxCommandEvent&)
      { OnZoom(WaveChannelViewConstants::kZoomHalfWave); }
   void OnZoomInVertical(wxCommandEvent&)
      { OnZoom(WaveChannelViewConstants::kZoomIn); }
   void OnZoomOutVertical(wxCommandEvent&)
      { OnZoom(WaveChannelViewConstants::kZoomOut); }
 
   void UpdatePrefs() override;
};
 
enum {
   OnZoomFitVerticalID = 20000,
   OnZoomResetID,
   OnZoomHalfWaveID,
   OnZoomInVerticalID,
   OnZoomOutVerticalID,
 
   // Reserve an ample block of ids for waveform scale types
   OnFirstWaveformScaleID,
   OnLastWaveformScaleID = OnFirstWaveformScaleID + 9,
 
   // Reserve an ample block of ids for spectrum scale types
   OnFirstSpectrumScaleID,
   OnLastSpectrumScaleID = OnFirstSpectrumScaleID + 19,
};
 
#endif