From 4341e678944d26870d89498b858609b07e480555 Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Thu, 10 Dec 2009 18:34:31 +0000
Subject: [PATCH] forward propagate solo-isolated status to everything fed by a
 route by something other than a send

git-svn-id: svn://localhost/ardour2/branches/3.0@6340 d708f5d6-7413-0410-9779-e7cbd77b26cf
---
 libs/ardour/ardour/route.h |  2 +-
 libs/ardour/route.cc       | 41 ++++++++++++++++++++++++++++++++++----
 2 files changed, 38 insertions(+), 5 deletions(-)

diff --git a/libs/ardour/ardour/route.h b/libs/ardour/ardour/route.h
index 8e63a2d523..44073a07a7 100644
--- a/libs/ardour/ardour/route.h
+++ b/libs/ardour/ardour/route.h
@@ -353,7 +353,7 @@ class Route : public SessionObject, public AutomatableControls, public RouteGrou
 	uint32_t       _phase_invert;
 	bool           _self_solo;
 	uint32_t       _soloed_by_others;
-	bool           _solo_isolated;
+	uint32_t       _solo_isolated;
 
 	bool           _denormal_protection;
 
diff --git a/libs/ardour/route.cc b/libs/ardour/route.cc
index f04de4c242..3bc7591251 100644
--- a/libs/ardour/route.cc
+++ b/libs/ardour/route.cc
@@ -118,7 +118,7 @@ Route::init ()
 {
 	_self_solo = false;
 	_soloed_by_others = 0;
-	_solo_isolated = false;
+	_solo_isolated = 0;
 	_solo_safe = false;
 	_active = true;
 	processor_max_streams.reset();
@@ -608,13 +608,46 @@ Route::set_delivery_solo ()
 void
 Route::set_solo_isolated (bool yn, void *src)
 {
+	if (is_master() || is_control() || is_hidden()) {
+		return;
+	}
+
 	if (_route_group && src != _route_group && _route_group->active_property (RouteGroup::Solo)) {
 		_route_group->apply (&Route::set_solo_isolated, yn, _route_group);
 		return;
 	}
+	
+	/* forward propagate solo-isolate status to everything fed by this route, but not those via sends only */
 
-	if (yn != _solo_isolated) {
-		_solo_isolated = yn;
+	boost::shared_ptr<RouteList> routes = _session.get_routes ();
+	for (RouteList::iterator i = routes->begin(); i != routes->end(); ++i) {
+		bool sends_only;
+		bool does_feed = feeds (*i, &sends_only);
+		
+		if (does_feed && !sends_only) {
+			(*i)->set_solo_isolated (yn, (*i)->route_group());
+		}
+	}
+
+	bool changed = false;
+
+	cerr << _name << " Solo isolated was " << _solo_isolated << endl;
+
+	if (yn) {
+		if (_solo_isolated == 0) {
+			changed = true;
+		}
+		_solo_isolated++;
+	} else {
+		changed = (_solo_isolated == 1);
+		if (_solo_isolated > 0) {
+			_solo_isolated--;
+		}
+	}
+
+	cerr << "\tnow " << _solo_isolated << endl;
+
+	if (changed) {
 		set_delivery_solo ();
 		solo_isolated_changed (src);
 	}
@@ -623,7 +656,7 @@ Route::set_solo_isolated (bool yn, void *src)
 bool
 Route::solo_isolated () const
 {
-	return _solo_isolated;
+	return _solo_isolated > 0;
 }
 
 void