ChangeSpeed.h

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/**********************************************************************
 
  Audacity: A Digital Audio Editor
 
  ChangeSpeed.h
 
  Vaughan Johnson, Dominic Mazzoni
 
  Change Speed effect, that affects both pitch & tempo.
 
**********************************************************************/
 
#ifndef __AUDACITY_EFFECT_CHANGESPEED__
#define __AUDACITY_EFFECT_CHANGESPEED__
 
#include "ChangeSpeedBase.h"
#include "StatefulEffect.h"
#include "StatefulEffectUIServices.h"
#include <wx/weakref.h>
 
class wxSlider;
class wxChoice;
class wxTextCtrl;
class NumericTextCtrl;
class ShuttleGui;
 
class EffectChangeSpeed :
    public ChangeSpeedBase,
    public StatefulEffectUIServices
{
public:
   std::unique_ptr<EffectEditor> PopulateOrExchange(
      ShuttleGui& S, EffectInstance& instance, EffectSettingsAccess& access,
      const EffectOutputs* pOutputs) override;
   bool TransferDataToWindow(const EffectSettings& settings) override;
   bool TransferDataFromWindow(EffectSettings& settings) override;
 
   DECLARE_EVENT_TABLE()
private:
   // handlers
   void OnText_PercentChange(wxCommandEvent& evt);
   void OnText_Multiplier(wxCommandEvent& evt);
   void OnSlider_PercentChange(wxCommandEvent& evt);
   void OnChoice_Vinyl(wxCommandEvent& evt);
   void OnTimeCtrl_ToLength(wxCommandEvent& evt);
   void OnTimeCtrlUpdate(wxCommandEvent& evt);
 
   // helper functions
   void
   Update_Text_PercentChange();   // Update control per current m_PercentChange.
   void Update_Text_Multiplier(); // Update control per current m_PercentChange.
   void
   Update_Slider_PercentChange(); // Update control per current m_PercentChange.
   void Update_Vinyl(); // Update Vinyl controls for NEW percent change.
   void Update_TimeCtrl_ToLength(); // Update target length controls for NEW
                                    // percent change.
   void UpdateUI();                 // Enable / disable OK / preview.
 
   wxWeakRef<wxWindow> mUIParent {};
 
   // controls
   wxTextCtrl* mpTextCtrl_PercentChange;
   wxTextCtrl* mpTextCtrl_Multiplier;
   wxSlider* mpSlider_PercentChange;
   wxChoice* mpChoice_FromVinyl;
   wxChoice* mpChoice_ToVinyl;
   NumericTextCtrl* mpFromLengthCtrl;
   NumericTextCtrl* mpToLengthCtrl;
};
 
#endif // __AUDACITY_EFFECT_CHANGESPEED__