FreqWindow.h

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/**********************************************************************
 
  Audacity: A Digital Audio Editor
 
  FreqWindow.h
 
  Dominic Mazzoni
 
**********************************************************************/
 
#ifndef __AUDACITY_FREQ_WINDOW__
#define __AUDACITY_FREQ_WINDOW__
 
#include <vector>
#include <wx/font.h> // member variable
#include <wx/statusbr.h> // to inherit
#include "Prefs.h"
#include "SampleFormat.h"
#include "SpectrumAnalyst.h"
#include "wxPanelWrapper.h" // to inherit
 
class wxMemoryDC;
class wxScrollBar;
class wxSlider;
class wxTextCtrl;
class wxButton;
class wxCheckBox;
class wxChoice;
 
class AudacityProject;
class FrequencyPlotDialog;
class FreqGauge;
class RulerPanel;
 
DECLARE_EXPORTED_EVENT_TYPE(AUDACITY_DLL_API, EVT_FREQWINDOW_RECALC, -1);
 
class FreqPlot final : public wxWindow
{
public:
   FreqPlot(wxWindow *parent, wxWindowID winid);
 
   // We don't need or want to accept focus.
   bool AcceptsFocus() const;
 
private:
   void OnPaint(wxPaintEvent & event);
   void OnErase(wxEraseEvent & event);
   void OnMouseEvent(wxMouseEvent & event);
 
private:
    FrequencyPlotDialog *freqWindow;
 
    DECLARE_EVENT_TABLE()
};
 
class FrequencyPlotDialog final : public wxDialogWrapper,
                                  public PrefsListener
{
public:
   FrequencyPlotDialog(wxWindow *parent, wxWindowID id,
              AudacityProject &project,
              const TranslatableString & title, const wxPoint & pos);
   virtual ~ FrequencyPlotDialog();
 
   bool Show( bool show = true ) override;
 
private:
   void Populate();
 
   bool GetAudio();
 
   void PlotMouseEvent(wxMouseEvent & event);
   void PlotPaint(wxPaintEvent & event);
 
   void OnCloseWindow(wxCloseEvent & event);
   void OnCloseButton(wxCommandEvent & event);
   void OnGetURL(wxCommandEvent & event);
   void OnSize(wxSizeEvent & event);
   void OnPanScroller(wxScrollEvent & event);
   void OnZoomSlider(wxCommandEvent & event);
   void OnAlgChoice(wxCommandEvent & event);
   void OnSizeChoice(wxCommandEvent & event);
   void OnFuncChoice(wxCommandEvent & event);
   void OnAxisChoice(wxCommandEvent & event);
   void OnExport(wxCommandEvent & event);
   void OnReplot(wxCommandEvent & event);
   void OnGridOnOff(wxCommandEvent & event);
   void OnRecalc(wxCommandEvent & event);
 
   void SendRecalcEvent();
   void Recalc();
   void DrawPlot();
   void DrawBackground(wxMemoryDC & dc);
 
   // PrefsListener implementation
   void UpdatePrefs() override;
 
 private:
   bool mDrawGrid;
   int mSize;
   SpectrumAnalyst::Algorithm mAlg;
   int mFunc;
   int mAxis;
   int dBRange;
   AudacityProject *mProject;
 
#ifdef __WXMSW__
   static const int fontSize = 8;
#else
   static const int fontSize = 10;
#endif
 
   RulerPanel *vRuler;
   RulerPanel *hRuler;
   FreqPlot *mFreqPlot;
   FreqGauge *mProgress;
 
   wxRect mPlotRect;
 
   wxFont mFreqFont;
 
   std::unique_ptr<wxCursor> mArrowCursor;
   std::unique_ptr<wxCursor> mCrossCursor;
 
   wxButton *mCloseButton;
   wxButton *mExportButton;
   wxButton *mReplotButton;
   wxCheckBox *mGridOnOff;
   wxChoice *mAlgChoice;
   wxChoice *mSizeChoice;
   wxChoice *mFuncChoice;
   wxChoice *mAxisChoice;
   wxScrollBar *mPanScroller;
   wxSlider *mZoomSlider;
   wxTextCtrl *mCursorText;
   wxTextCtrl *mPeakText;
 
 
   double mRate;
   size_t mDataLen;
   Floats mData;
   size_t mWindowSize;
 
   bool mLogAxis;
   float mYMin;
   float mYMax;
   float mYStep;
 
   std::unique_ptr<wxBitmap> mBitmap;
 
   int mMouseX;
   int mMouseY;
 
   std::unique_ptr<SpectrumAnalyst> mAnalyst;
 
   DECLARE_EVENT_TABLE()
 
   friend class FreqPlot;
};
 
#endif