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livetrax/libs/surfaces/websockets/transport.cc

77 lines
1.9 KiB
C++

/*
* Copyright (C) 2020 Luciano Iam <lucianito@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "ardour/tempo.h"
#include "transport.h"
using namespace ARDOUR;
double
ArdourTransport::tempo () const
{
Tempo tempo = session ().tempo_map ().tempo_at_sample (0);
return tempo.note_type () * tempo.pulses_per_minute ();
}
void
ArdourTransport::set_tempo (double bpm)
{
bpm = std::max (0.01, bpm);
TempoMap& tempo_map = session ().tempo_map ();
Tempo tempo (bpm, tempo_map.tempo_at_sample (0).note_type (), bpm);
tempo_map.add_tempo (tempo, 0.0, 0, AudioTime);
}
double
ArdourTransport::time () const
{
samplepos_t t = session ().transport_sample ();
samplecnt_t f = session ().sample_rate ();
return static_cast<double>(t) / static_cast<double>(f);
}
bool
ArdourTransport::roll () const
{
return basic_ui ().transport_rolling ();
}
void
ArdourTransport::set_roll (bool value)
{
if ((value && !roll ()) || (!value && roll ())) {
// this call is equivalent to hitting the spacebar
basic_ui ().toggle_roll (false);
}
}
bool
ArdourTransport::record () const
{
return session ().get_record_enabled ();
}
void
ArdourTransport::set_record (bool value)
{
if ((value && !record ()) || (!value && record ())) {
basic_ui ().rec_enable_toggle ();
}
}