ardour/livetrax
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add percentage field to varispeed dialog

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All fields are kept sync'ed to each other, so it does not matter
which one(s) you use
This commit is contained in:
Paul Davis 2023-10-09 10:52:47 -06:00
parent c0d91362cf
commit 0fa63b6d37
2 changed files with 54 additions and 7 deletions
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54
gtk2_ardour/varispeed_dialog.cc
View File

@ -18,6 +18,8 @@
#include <ardour/session.h>
#include "pbd/unwind.h"
#include "varispeed_dialog.h"
#include "ardour_ui.h"
@ -31,10 +33,13 @@ VarispeedDialog::VarispeedDialog ()
: ArdourDialog (_("Varispeed"), false)
, _semitones_adjustment (0.0, -12.0, 12.0, 1.0, 4.0)
, _cents_adjustment (0.0, -100.0, 100.0, 1.0, 10.0)
, _percent_adjustment (100.0, -50.0, 200.0, 1.0, 10.0)
, _semitones_spinner (_semitones_adjustment)
, _cents_spinner (_cents_adjustment)
, _percent_spinner (_percent_adjustment)
, ignore_changes (false)
{
Table* t = manage (new Table (3, 2));
Table* t = manage (new Table (5, 2));
t->set_row_spacings (6);
t->set_col_spacings (6);
@ -49,14 +54,21 @@ VarispeedDialog::VarispeedDialog ()
t->attach (_cents_spinner, 1, 2, r, r + 1, FILL, EXPAND & FILL, 0, 0);
++r;
l = manage (new Label (_("Percentage:"), ALIGN_START, ALIGN_CENTER, false));
t->attach (*l, 0, 1, r, r + 1, FILL, EXPAND, 0, 0);
t->attach (_percent_spinner, 1, 2, r, r + 1, FILL, EXPAND & FILL, 0, 0);
++r;
get_vbox ()->set_spacing (6);
get_vbox ()->pack_start (*t, false, false);
_semitones_spinner.set_can_focus (false);
_cents_spinner.set_can_focus (false);
_percent_spinner.set_can_focus (false);
_semitones_spinner.signal_changed ().connect (sigc::mem_fun (*this, &VarispeedDialog::apply_speed));
_cents_spinner.signal_changed ().connect (sigc::mem_fun (*this, &VarispeedDialog::apply_speed));
_semitones_spinner.signal_changed ().connect (sigc::mem_fun (*this, &VarispeedDialog::apply_semitones));
_cents_spinner.signal_changed ().connect (sigc::mem_fun (*this, &VarispeedDialog::apply_semitones));
_percent_spinner.signal_changed ().connect (sigc::mem_fun (*this, &VarispeedDialog::apply_percentage));
show_all_children ();
}
@ -79,12 +91,42 @@ VarispeedDialog::adj_semi (double delta)
}
void
VarispeedDialog::apply_speed ()
VarispeedDialog::apply_semitones ()
{
int cents = _semitones_spinner.get_value () * 100 + _cents_spinner.get_value ();
if (ignore_changes) {
return;
}
int cents = _semitones_spinner.get_value () * 100 + _cents_spinner.get_value ();
double speed = pow (2.0, ((double)cents / 1200.0));
{
PBD::Unwinder<bool> uw (ignore_changes, true);
_percent_adjustment.set_value (100. * pow (2.0, (cents/1200.0)));
}
if (_session && _session->default_play_speed () != speed) {
_session->request_default_play_speed (speed);
}
}
void
VarispeedDialog::apply_percentage ()
{
if (ignore_changes) {
return;
}
double speed = 1.0 + (_percent_spinner.get_value() / 100.0);
{
PBD::Unwinder<bool> uw (ignore_changes, true);
double absspeed = ::abs (speed);
double semitones = 12. * (log (absspeed - 1.0) / log(2.));
_semitones_adjustment.set_value (floor (semitones));
_cents_adjustment.set_value (100. * fmod (semitones, 1.));
}
if (_session && _session->default_play_speed () != speed) {
_session->request_default_play_speed (speed);
}
@ -93,7 +135,7 @@ VarispeedDialog::apply_speed ()
void
VarispeedDialog::on_show ()
{
apply_speed ();
apply_semitones ();
ArdourDialog::on_show ();
set_position (Gtk::WIN_POS_NONE); // remember position from now on
}

7
gtk2_ardour/varispeed_dialog.h
View File

@ -34,7 +34,8 @@ public:
void adj_semi (double delta);
private:
void apply_speed ();
void apply_semitones ();
void apply_percentage ();
void on_show ();
void on_hide ();
@ -42,8 +43,12 @@ private:
Gtk::Adjustment _semitones_adjustment;
Gtk::Adjustment _cents_adjustment;
Gtk::Adjustment _percent_adjustment;
Gtk::SpinButton _semitones_spinner;
Gtk::SpinButton _cents_spinner;
Gtk::SpinButton _percent_spinner;
bool ignore_changes;
};
#endif