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livetrax/libs/ardour/mute_control.cc
luz paz 364f2f0788 Fix typos in gtk2_ardour/ directory
Found via `codespell -q 3 -S *.po,./share/patchfiles,./libs -L ba,buss,busses,doubleclick,hsi,ontop,ro,seh,siz,sur,te,trough,ue`
2022-01-26 12:35:38 -05:00

218 lines
5.7 KiB
C++

/*
* Copyright (C) 2016-2017 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2016-2017 Robin Gareus <robin@gareus.org>
*
* 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 "evoral/ControlList.h"
#include "ardour/mute_master.h"
#include "ardour/session.h"
#include "ardour/mute_control.h"
#include "pbd/i18n.h"
using namespace ARDOUR;
using namespace std;
MuteControl::MuteControl (Session& session, std::string const & name, Muteable& m, Temporal::TimeDomain td)
: SlavableAutomationControl (session, MuteAutomation, ParameterDescriptor (MuteAutomation),
boost::shared_ptr<AutomationList> (new AutomationList (Evoral::Parameter (MuteAutomation), td)),
name)
, _muteable (m)
{
_list->set_interpolation (Evoral::ControlList::Discrete);
/* mute changes must be synchronized by the process cycle */
set_flag (Controllable::RealTime);
}
void
MuteControl::post_add_master (boost::shared_ptr<AutomationControl> m)
{
if (m->get_value()) {
/* boolean masters records are not updated until AFTER
* ::post_add_master() is called, so we can use them to check
* on whether any master was already enabled before the new
* one was added.
*/
if (!muted_by_self() && !get_boolean_masters()) {
_muteable.mute_master()->set_muted_by_masters (true);
Changed (false, Controllable::NoGroup); /* EMIT SIGNAL */
}
}
}
void
MuteControl::pre_remove_master (boost::shared_ptr<AutomationControl> m)
{
if (!m) {
/* null control ptr means we're removing all masters */
_muteable.mute_master()->set_muted_by_masters (false);
/* Changed will be emitted in SlavableAutomationControl::clear_masters() */
return;
}
if (m->get_value() && get_boolean_masters() == 1) {
_muteable.mute_master()->set_muted_by_masters (false);
if (!muted_by_self()) {
Changed (false, Controllable::NoGroup); /* EMIT SIGNAL */
}
}
}
void
MuteControl::actually_set_value (double val, Controllable::GroupControlDisposition gcd)
{
if (muted_by_self() != bool (val)) {
_muteable.mute_master()->set_muted_by_self (val);
/* allow the Muteable to respond to the mute change
before anybody else knows about it.
*/
_muteable.act_on_mute ();
}
SlavableAutomationControl::actually_set_value (val, gcd);
}
bool
MuteControl::handle_master_change (boost::shared_ptr<AutomationControl> m)
{
bool send_signal = false;
boost::shared_ptr<MuteControl> mc = boost::dynamic_pointer_cast<MuteControl> (m);
if (!mc) {
return false;
}
if (m->get_value()) {
/* this master is now enabled */
if (get_boolean_masters() == 0) {
_muteable.mute_master()->set_muted_by_masters (true);
if (!muted_by_self()) {
send_signal = true;
}
}
} else {
/* this master is disabled and there was only 1 enabled before */
if (get_boolean_masters() == 1) {
_muteable.mute_master()->set_muted_by_masters (false);
if (!muted_by_self()) {
send_signal = true;
}
}
}
return send_signal;
}
double
MuteControl::get_value () const
{
if (slaved ()) {
return muted_by_self() || muted_by_masters ();
}
if (_list && boost::dynamic_pointer_cast<AutomationList>(_list)->automation_playback()) {
// Playing back automation, get the value from the list
return AutomationControl::get_value();
}
return muted();
}
void
MuteControl::set_mute_points (MuteMaster::MutePoint mp)
{
_muteable.mute_master()->set_mute_points (mp);
_muteable.mute_points_changed (); /* EMIT SIGNAL */
if (_muteable.mute_master()->muted_by_self()) {
Changed (true, Controllable::UseGroup); /* EMIT SIGNAL */
}
}
MuteMaster::MutePoint
MuteControl::mute_points () const
{
return _muteable.mute_master()->mute_points ();
}
bool
MuteControl::muted () const
{
/* have to get (self-muted) value from somewhere. could be our own
Control, or the Muteable that we sort-of proxy for. Since this
method is called by ::get_value(), use the latter to avoid recursion.
*/
return _muteable.mute_master()->muted_by_self() || muted_by_masters ();
}
bool
MuteControl::muted_by_self () const
{
return _muteable.mute_master()->muted_by_self();
}
bool
MuteControl::muted_by_masters () const
{
return _muteable.mute_master()->muted_by_masters ();
}
bool
MuteControl::muted_by_others_soloing () const
{
return _muteable.muted_by_others_soloing ();
}
void
MuteControl::automation_run (samplepos_t start, pframes_t len)
{
boolean_automation_run (start, len);
bool valid = false;
bool mute = false;
if (list() && automation_playback()) {
mute = list()->rt_safe_eval (timepos_t (start), valid) >= 0.5;
}
if (!valid) {
return;
}
if (muted_by_masters ()) {
/* already muted, no need to check further,
* except we need to up update implicit/explicit mute
*/
if (muted_by_self () != mute) {
set_value_unchecked (mute ? 1. : 0.);
Changed (false, Controllable::NoGroup); /* EMIT SIGNAL */
}
return;
}
if (mute && !muted()) {
set_value_unchecked (1.0); // mute
Changed (false, Controllable::NoGroup); /* EMIT SIGNAL */
} else if (!mute && muted()) {
set_value_unchecked (0.0); // unmute
Changed (false, Controllable::NoGroup); /* EMIT SIGNAL */
}
}