990080ae7d
... for functions in final classes. override is like const -- it's not necessary, but it helps the compiler to catch mistakes. There may be some overriding functions not explicitly declared virtual and I did not identify such cases, in which I might also add override.
145 lines
4.4 KiB
C++
145 lines
4.4 KiB
C++
/**********************************************************************
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Audacity: A Digital Audio Editor
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Audacity(R) is copyright (c) 1999-2012 Audacity Team.
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License: GPL v2. See License.txt.
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ChangePitch.h
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Vaughan Johnson, Dominic Mazzoni, Steve Daulton
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******************************************************************//**
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\file ChangePitch.h
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\brief Change Pitch effect provides raising or lowering
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the pitch without changing the tempo.
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*//*******************************************************************/
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#if USE_SOUNDTOUCH
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#ifndef __AUDACITY_EFFECT_CHANGEPITCH__
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#define __AUDACITY_EFFECT_CHANGEPITCH__
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#include <wx/choice.h>
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#include <wx/event.h>
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#include <wx/slider.h>
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#include <wx/spinctrl.h>
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#include <wx/string.h>
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#include <wx/textctrl.h>
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#include "SoundTouchEffect.h"
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class ShuttleGui;
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#define CHANGEPITCH_PLUGIN_SYMBOL XO("Change Pitch")
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class EffectChangePitch final : public EffectSoundTouch
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{
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public:
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EffectChangePitch();
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virtual ~EffectChangePitch();
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// IdentInterface implementation
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wxString GetSymbol() override;
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wxString GetDescription() override;
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// EffectIdentInterface implementation
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EffectType GetType() override;
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// EffectClientInterface implementation
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bool GetAutomationParameters(EffectAutomationParameters & parms) override;
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bool SetAutomationParameters(EffectAutomationParameters & parms) override;
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bool LoadFactoryDefaults() override;
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// Effect implementation
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bool Init() override;
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bool Process() override;
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bool CheckWhetherSkipEffect() override;
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void PopulateOrExchange(ShuttleGui & S) override;
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bool TransferDataToWindow() override;
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bool TransferDataFromWindow() override;
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private:
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// EffectChangePitch implementation
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// Deduce m_FromFrequency from the samples at the beginning of
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// the selection. Then set some other params accordingly.
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void DeduceFrequencies();
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// calculations
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void Calc_ToPitch(); // Update m_nToPitch from NEW m_dSemitonesChange.
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void Calc_ToOctave();
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void Calc_SemitonesChange_fromPitches();
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void Calc_SemitonesChange_fromOctaveChange();
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void Calc_SemitonesChange_fromPercentChange();
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void Calc_ToFrequency(); // Update m_ToFrequency from m_FromFrequency & m_dPercentChange.
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void Calc_PercentChange(); // Update m_dPercentChange based on NEW m_dSemitonesChange.
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// handlers
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void OnChoice_FromPitch(wxCommandEvent & evt);
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void OnSpin_FromOctave(wxCommandEvent & evt);
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void OnChoice_ToPitch(wxCommandEvent & evt);
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void OnSpin_ToOctave(wxCommandEvent & evt);
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void OnText_SemitonesChange(wxCommandEvent & evt);
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void OnText_FromFrequency(wxCommandEvent & evt);
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void OnText_ToFrequency(wxCommandEvent & evt);
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void OnText_PercentChange(wxCommandEvent & evt);
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void OnSlider_PercentChange(wxCommandEvent & evt);
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// helper fns for controls
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void Update_Choice_FromPitch();
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void Update_Spin_FromOctave();
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void Update_Choice_ToPitch();
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void Update_Spin_ToOctave();
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void Update_Text_SemitonesChange();
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void Update_Text_FromFrequency();
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void Update_Text_ToFrequency();
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void Update_Text_PercentChange(); // Update control per current m_dPercentChange.
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void Update_Slider_PercentChange(); // Update control per current m_dPercentChange.
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private:
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// effect parameters
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int m_nFromPitch; // per PitchIndex()
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int m_nFromOctave; // per PitchOctave()
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int m_nToPitch; // per PitchIndex()
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int m_nToOctave; // per PitchOctave()
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double m_FromFrequency; // starting frequency of selection
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double m_ToFrequency; // target frequency of selection
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double m_dSemitonesChange; // how many semitones to change pitch
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double m_dStartFrequency; // starting frequency of first 0.2s of selection
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double m_dPercentChange; // percent change to apply to pitch
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// Slider is (-100, 200], but textCtrls can set higher.
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bool m_bLoopDetect; // Used to avoid loops in initialization and in event handling.
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// controls
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wxChoice * m_pChoice_FromPitch;
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wxSpinCtrl * m_pSpin_FromOctave;
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wxChoice * m_pChoice_ToPitch;
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wxSpinCtrl * m_pSpin_ToOctave;
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wxTextCtrl * m_pTextCtrl_SemitonesChange;
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wxTextCtrl * m_pTextCtrl_FromFrequency;
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wxTextCtrl * m_pTextCtrl_ToFrequency;
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wxTextCtrl * m_pTextCtrl_PercentChange;
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wxSlider * m_pSlider_PercentChange;
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DECLARE_EVENT_TABLE();
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};
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#endif // __AUDACITY_EFFECT_CHANGEPITCH__
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#endif // USE_SOUNDTOUCH
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