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1 files changed, 180 insertions, 0 deletions

diff --git a/libs/ardour/solo_isolate_control.cc b/libs/ardour/solo_isolate_control.cc
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+++ b/libs/ardour/solo_isolate_control.cc
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+/*
+    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 "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, SoloAutomation, 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)
+{
+	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) {
+		/* solo isolated status changed */
+		_muteable.mute_master()->set_solo_ignore (solo_isolated());
+		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 == 0.0 ? false : true, 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);
+	_session.set_dirty ();
+}
+
+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) {
+			_muteable.mute_master()->set_solo_ignore (true);
+			changed = true;
+		}
+		_solo_isolated = true;
+	} else {
+		if (_solo_isolated == true) {
+			_solo_isolated = false;
+			_muteable.mute_master()->set_solo_ignore (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()) {
+		Glib::Threads::RWLock::ReaderLock lm (master_lock);
+		return get_masters_value_locked () ? 1.0 : 0.0;
+	}
+
+	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 () ? 1.0 : 0.0;
+}
+
+int
+SoloIsolateControl::set_state (XMLNode const & node, int)
+{
+	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;
+}