mirror of
https://github.com/cookiengineer/audacity
synced 2026-01-02 06:08:44 +01:00
466e9c179e
It combines the old IdentInterface with the ParamsInterface, providing an identifier and parameters (if needed). The main purpose of the change is to make the class hierarchy (as viewed via doxygen) much easier to follow.
113 lines
3.2 KiB
C++
113 lines
3.2 KiB
C++
/**********************************************************************
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Audacity: A Digital Audio Editor
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ChangeTempo.h
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Vaughan Johnson, Dominic Mazzoni
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Change Tempo effect provides speeding up or
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slowing down tempo without changing pitch.
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**********************************************************************/
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#if USE_SOUNDTOUCH
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#ifndef __AUDACITY_EFFECT_CHANGETEMPO__
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#define __AUDACITY_EFFECT_CHANGETEMPO__
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#if USE_SBSMS
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#include "SBSMSEffect.h"
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#include <wx/checkbox.h>
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#endif
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#include <wx/event.h>
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#include <wx/slider.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 CHANGETEMPO_PLUGIN_SYMBOL ComponentInterfaceSymbol{ XO("Change Tempo") }
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class EffectChangeTempo final : public EffectSoundTouch
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{
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public:
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EffectChangeTempo();
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virtual ~EffectChangeTempo();
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// ComponentInterface implementation
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ComponentInterfaceSymbol GetSymbol() override;
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wxString GetDescription() override;
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wxString ManualPage() override;
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// EffectDefinitionInterface implementation
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EffectType GetType() override;
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bool SupportsAutomation() override;
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// EffectClientInterface implementation
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bool DefineParams( ShuttleParams & S ) override;
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bool GetAutomationParameters(CommandParameters & parms) override;
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bool SetAutomationParameters(CommandParameters & parms) override;
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// Effect implementation
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bool Init() override;
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bool CheckWhetherSkipEffect() override;
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bool Process() override;
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double CalcPreviewInputLength(double previewLength) 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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// EffectChangeTempo implementation
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// handlers
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void OnText_PercentChange(wxCommandEvent & evt);
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void OnSlider_PercentChange(wxCommandEvent & evt);
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void OnText_FromBPM(wxCommandEvent & evt);
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void OnText_ToBPM(wxCommandEvent & evt);
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void OnText_ToLength(wxCommandEvent & evt);
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// helper fns
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void Update_Text_PercentChange(); // Update control per current m_PercentChange.
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void Update_Slider_PercentChange(); // Update control per current m_PercentChange.
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void Update_Text_ToBPM(); // Use m_FromBPM & m_PercentChange to set NEW m_ToBPM & control.
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void Update_Text_ToLength(); // Use m_FromLength & m_PercentChange to set NEW m_ToLength & control.
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private:
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bool mUseSBSMS;
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double m_PercentChange; // percent change to apply to tempo
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// -100% is meaningless, but sky's the upper limit
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double m_FromBPM; // user-set beats-per-minute. Zero means not yet set.
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double m_ToBPM; // Zero value means not yet set.
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double m_FromLength; // starting length of selection
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double m_ToLength; // target length of selection
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bool m_bLoopDetect;
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// controls
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wxTextCtrl * m_pTextCtrl_PercentChange;
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wxSlider * m_pSlider_PercentChange;
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wxTextCtrl * m_pTextCtrl_FromBPM;
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wxTextCtrl * m_pTextCtrl_ToBPM;
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wxTextCtrl * m_pTextCtrl_FromLength;
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wxTextCtrl * m_pTextCtrl_ToLength;
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#if USE_SBSMS
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wxCheckBox * mUseSBSMSCheckBox;
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#endif
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DECLARE_EVENT_TABLE()
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};
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#endif // __AUDACITY_EFFECT_CHANGETEMPO__
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#endif // USE_SOUNDTOUCH
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