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livetrax/libs/ardour/solo_isolate_control.cc

178 lines
4.6 KiB
C++

/*
Copyright (C) 2016 Paul Davis
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.,
675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "ardour/debug.h"
#include "ardour/mute_master.h"
#include "ardour/session.h"
#include "ardour/solo_isolate_control.h"
#include "pbd/i18n.h"
using namespace ARDOUR;
using namespace std;
using namespace PBD;
SoloIsolateControl::SoloIsolateControl (Session& session, std::string const & name, Soloable& s, Muteable& m)
: SlavableAutomationControl (session, SoloIsolateAutomation, ParameterDescriptor (SoloIsolateAutomation),
boost::shared_ptr<AutomationList>(new AutomationList(Evoral::Parameter(SoloIsolateAutomation))),
name)
, _soloable (s)
, _muteable (m)
, _solo_isolated (false)
, _solo_isolated_by_upstream (0)
{
_list->set_interpolation (Evoral::ControlList::Discrete);
/* isolate changes must be synchronized by the process cycle */
set_flags (Controllable::Flag (flags() | Controllable::RealTime));
}
void
SoloIsolateControl::master_changed (bool from_self, PBD::Controllable::GroupControlDisposition gcd, boost::shared_ptr<AutomationControl>)
{
if (!_soloable.can_solo()) {
return;
}
bool master_soloed;
{
Glib::Threads::RWLock::ReaderLock lm (master_lock);
master_soloed = (bool) get_masters_value_locked ();
}
/* Master is considered equivalent to an upstream solo control, not
* direct control over self-soloed.
*/
mod_solo_isolated_by_upstream (master_soloed ? 1 : -1);
/* no need to call AutomationControl::master_changed() since it just
emits Changed() which we already did in mod_solo_by_others_upstream()
*/
}
void
SoloIsolateControl::mod_solo_isolated_by_upstream (int32_t delta)
{
bool old = solo_isolated ();
DEBUG_TRACE (DEBUG::Solo, string_compose ("%1 mod_solo_isolated_by_upstream cur: %2 d: %3\n",
name(), _solo_isolated_by_upstream, delta));
if (delta < 0) {
if (_solo_isolated_by_upstream >= (uint32_t) abs(delta)) {
_solo_isolated_by_upstream += delta;
} else {
_solo_isolated_by_upstream = 0;
}
} else {
_solo_isolated_by_upstream += delta;
}
if (solo_isolated() != old) {
Changed (false, Controllable::NoGroup); /* EMIT SIGNAL */
}
}
void
SoloIsolateControl::actually_set_value (double val, PBD::Controllable::GroupControlDisposition gcd)
{
if (!_soloable.can_solo()) {
return;
}
set_solo_isolated (val, gcd);
/* this sets the Evoral::Control::_user_value for us, which will
be retrieved by AutomationControl::get_value (), and emits Changed
*/
AutomationControl::actually_set_value (val, gcd);
}
void
SoloIsolateControl::set_solo_isolated (bool yn, Controllable::GroupControlDisposition group_override)
{
if (!_soloable.can_solo()) {
return;
}
bool changed = false;
if (yn) {
if (_solo_isolated == false) {
changed = true;
}
_solo_isolated = true;
} else {
if (_solo_isolated == true) {
_solo_isolated = false;
changed = true;
}
}
if (!changed) {
return;
}
_soloable.push_solo_isolate_upstream (yn ? 1 : -1);
/* XXX should we back-propagate as well? (April 2010: myself and chris goddard think not) */
Changed (true, group_override); /* EMIT SIGNAL */
}
double
SoloIsolateControl::get_value () const
{
if (slaved()) {
return solo_isolated() || get_masters_value ();
}
if (_list && boost::dynamic_pointer_cast<AutomationList>(_list)->automation_playback()) {
// Playing back automation, get the value from the list
return AutomationControl::get_value();
}
return solo_isolated ();
}
int
SoloIsolateControl::set_state (XMLNode const & node, int version)
{
if (SlavableAutomationControl::set_state(node, version)) {
return -1;
}
XMLProperty const * prop;
if ((prop = node.property ("solo-isolated")) != 0) {
_solo_isolated = string_is_affirmative (prop->value());
}
return 0;
}
XMLNode&
SoloIsolateControl::get_state ()
{
XMLNode& node (SlavableAutomationControl::get_state());
node.add_property (X_("solo-isolated"), _solo_isolated ? X_("yes") : X_("no"));
return node;
}