mirror of
https://github.com/cookiengineer/audacity
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8fbfa460c4
This brings the builtin, LV2, and VAMP effects inline with the Audio Units, LADSPA, and VST effects. All effects now share a common UI. This gives all effects (though not implemented for all): User and factory preset capability Preset import/export capability Shared or private configuration options Builtin effects can now be migrated to RTP, depending on algorithm. LV2 effects now support graphical interfaces if the plugin supplies one. Nyquist prompt enhanced to provide some features of the Nyquist Workbench. It may not look like it, but this was a LOT of work, so trust me, there WILL be problems and everything effect related should be suspect. Keep a sharp eye (or two) open.
101 lines
3.0 KiB
C++
101 lines
3.0 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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#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 "../ShuttleGui.h"
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#include "SoundTouchEffect.h"
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#define CHANGETEMPO_PLUGIN_SYMBOL wxTRANSLATE("Change Tempo")
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class EffectChangeTempo : 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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// IdentInterface implementation
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virtual wxString GetSymbol();
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virtual wxString GetDescription();
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// EffectIdentInterface implementation
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virtual EffectType GetType();
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virtual bool SupportsAutomation();
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// EffectClientInterface implementation
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virtual bool GetAutomationParameters(EffectAutomationParameters & parms);
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virtual bool SetAutomationParameters(EffectAutomationParameters & parms);
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// Effect implementation
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virtual bool Init();
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virtual bool CheckWhetherSkipEffect();
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virtual bool Process();
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virtual double CalcPreviewInputLength(double previewLength);
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virtual void PopulateOrExchange(ShuttleGui & S);
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virtual bool TransferDataToWindow();
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virtual bool TransferDataFromWindow();
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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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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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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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