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Steve Daulton's patch for fractional BPM

This commit is contained in:
v.audacity 2013-06-28 03:20:33 +00:00
parent 89b2005e49
commit e2f272890c
2 changed files with 36 additions and 38 deletions
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66
src/effects/ChangeTempo.cpp
View File

@ -45,8 +45,8 @@
EffectChangeTempo::EffectChangeTempo()
{
m_PercentChange = 0.0;
m_FromBPM = 0; // indicates not yet set
m_ToBPM = 0; // indicates not yet set
m_FromBPM = 0.0; // indicates not yet set
m_ToBPM = 0.0; // indicates not yet set
m_FromLength = 0.0;
m_ToLength = 0.0;
}
@ -164,8 +164,8 @@ ChangeTempoDialog::ChangeTempoDialog(EffectChangeTempo *effect, wxWindow *parent
// effect parameters
m_PercentChange = 0.0;
m_FromBPM = 0; // indicates not yet set
m_ToBPM = 0; // indicates not yet set
m_FromBPM = 0.0; // indicates not yet set
m_ToBPM = 0.0; // indicates not yet set
m_FromLength = 0.0;
m_ToLength = 0.0;
@ -245,15 +245,15 @@ bool ChangeTempoDialog::TransferDataToWindow()
// from/to BPM controls
wxString str;
if (m_pTextCtrl_FromBPM) {
if (m_FromBPM != 0)
str.Printf(wxT("%d"), m_FromBPM);
if (m_FromBPM != 0.0)
str.Printf(wxT("%.3f"), m_FromBPM);
else
str = wxT("");
m_pTextCtrl_FromBPM->SetValue(str);
}
if (m_pTextCtrl_ToBPM) {
if (m_ToBPM != 0)
str.Printf(wxT("%d"), m_ToBPM);
if (m_ToBPM != 0.0)
str.Printf(wxT("%.3f"), m_ToBPM);
else
str = wxT("");
m_pTextCtrl_ToBPM->SetValue(str);
@ -291,24 +291,24 @@ bool ChangeTempoDialog::TransferDataFromWindow()
// always tracks it & is more precise (decimal points).
// from/to BPM controls
long newLong;
double newValue;
if (m_pTextCtrl_FromBPM) {
str = m_pTextCtrl_FromBPM->GetValue();
str.ToLong(&newLong);
m_FromBPM = (unsigned int)(newLong);
str.ToDouble(&newValue);
m_FromBPM = newValue;
}
if (m_pTextCtrl_ToBPM) {
str = m_pTextCtrl_ToBPM->GetValue();
str.ToLong(&newLong);
m_ToBPM = (unsigned int)(newLong);
str.ToDouble(&newValue);
m_ToBPM = newValue;
}
// from/to Length controls
// Don't do m_pTextCtrl_ToLength. It's disabled.
if (m_pTextCtrl_ToLength) {
str = m_pTextCtrl_ToLength->GetValue();
str.ToLong(&newLong);
m_ToLength = (int)(newLong);
str.ToDouble(&newValue);
m_ToLength = newValue;
}
return true;
@ -316,7 +316,7 @@ bool ChangeTempoDialog::TransferDataFromWindow()
// handler implementations for ChangeTempoDialog
void ChangeTempoDialog::OnText_PercentChange(wxCommandEvent & event)
void ChangeTempoDialog::OnText_PercentChange(wxCommandEvent & WXUNUSED(event))
{
if (m_bLoopDetect)
return;
@ -337,7 +337,7 @@ void ChangeTempoDialog::OnText_PercentChange(wxCommandEvent & event)
}
}
void ChangeTempoDialog::OnSlider_PercentChange(wxCommandEvent & event)
void ChangeTempoDialog::OnSlider_PercentChange(wxCommandEvent & WXUNUSED(event))
{
if (m_bLoopDetect)
return;
@ -356,16 +356,16 @@ void ChangeTempoDialog::OnSlider_PercentChange(wxCommandEvent & event)
}
}
void ChangeTempoDialog::OnText_FromBPM(wxCommandEvent & event)
void ChangeTempoDialog::OnText_FromBPM(wxCommandEvent & WXUNUSED(event))
{
if (m_bLoopDetect)
return;
if (m_pTextCtrl_FromBPM) {
wxString str = m_pTextCtrl_FromBPM->GetValue();
long newValue;
str.ToLong(&newValue);
m_FromBPM = (unsigned int)(newValue);
double newValue;
str.ToDouble(&newValue);
m_FromBPM = newValue;
m_bLoopDetect = true;
@ -375,22 +375,22 @@ void ChangeTempoDialog::OnText_FromBPM(wxCommandEvent & event)
}
}
void ChangeTempoDialog::OnText_ToBPM(wxCommandEvent & event)
void ChangeTempoDialog::OnText_ToBPM(wxCommandEvent & WXUNUSED(event))
{
if (m_bLoopDetect)
return;
if (m_pTextCtrl_ToBPM) {
wxString str = m_pTextCtrl_ToBPM->GetValue();
long newValue;
str.ToLong(&newValue);
m_ToBPM = (unsigned int)(newValue);
double newValue;
str.ToDouble(&newValue);
m_ToBPM = newValue;
m_bLoopDetect = true;
// If FromBPM has already been set, then there's a new percent change.
if (m_FromBPM != 0) {
m_PercentChange = (((double)(m_ToBPM) * 100.0) / (double)(m_FromBPM)) - 100.0;
if (m_FromBPM != 0.0) {
m_PercentChange = ((m_ToBPM * 100.0) / m_FromBPM) - 100.0;
this->Update_Text_PercentChange();
this->Update_Slider_PercentChange();
@ -402,7 +402,7 @@ void ChangeTempoDialog::OnText_ToBPM(wxCommandEvent & event)
}
}
void ChangeTempoDialog::OnText_ToLength(wxCommandEvent & event)
void ChangeTempoDialog::OnText_ToLength(wxCommandEvent & WXUNUSED(event))
{
if (m_bLoopDetect)
return;
@ -426,7 +426,7 @@ void ChangeTempoDialog::OnText_ToLength(wxCommandEvent & event)
}
}
void ChangeTempoDialog::OnPreview(wxCommandEvent &event)
void ChangeTempoDialog::OnPreview(wxCommandEvent & WXUNUSED(event))
{
TransferDataFromWindow();
@ -471,15 +471,13 @@ void ChangeTempoDialog::Update_Text_ToBPM()
// Use m_FromBPM & m_PercentChange to set new m_ToBPM & control.
{
// Update ToBPM iff FromBPM has been set.
if (m_FromBPM == 0)
if (m_FromBPM == 0.0)
return;
m_ToBPM = (unsigned int)((((double)(m_FromBPM) *
(100.0 + m_PercentChange)) / 100.0) +
0.5); // Add 0.5 so trunc -> round.
m_ToBPM = (((m_FromBPM * (100.0 + m_PercentChange)) / 100.0));
if (m_pTextCtrl_ToBPM) {
wxString str;
str.Printf(wxT("%d"), m_ToBPM);
str.Printf(wxT("%.3f"), m_ToBPM);
m_pTextCtrl_ToBPM->SetValue(str);
}
}

8
src/effects/ChangeTempo.h
View File

@ -65,8 +65,8 @@ class EffectChangeTempo : public EffectSoundTouch {
private:
double m_PercentChange; // percent change to apply to tempo
// -100% is meaningless, but sky's the upper limit
unsigned int m_FromBPM; // user-set beats-per-minute. Zero means not yet set.
unsigned int m_ToBPM; // Zero value means not yet set.
double m_FromBPM; // user-set beats-per-minute. Zero means not yet set.
double m_ToBPM; // Zero value means not yet set.
double m_FromLength; // starting length of selection
double m_ToLength; // target length of selection
@ -119,8 +119,8 @@ class ChangeTempoDialog:public EffectDialog {
double m_PercentChange; // percent change to apply to tempo
// -100% is meaningless, but sky's the upper limit.
// Slider is (-100, 200], but textCtrls can set higher.
unsigned int m_FromBPM; // user-set beats-per-minute. Zero means not yet set.
unsigned int m_ToBPM; // Zero value means not yet set.
double m_FromBPM; // user-set beats-per-minute. Zero means not yet set.
double m_ToBPM; // Zero value means not yet set.
double m_FromLength; // starting length of selection
double m_ToLength; // target length of selection