From f92dcfa0681d749cb4d864fb0afab6567c12108e Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Tue, 15 Aug 2023 08:34:42 -0600
Subject: [PATCH] domain bouncing for Automatable/ControlLists

---
 libs/ardour/automatable.cc       | 13 ++++++++++-
 libs/evoral/ControlList.cc       | 38 ++++++++++++++++++++++++++++++++
 libs/evoral/evoral/ControlList.h |  6 ++++-
 3 files changed, 55 insertions(+), 2 deletions(-)

diff --git a/libs/ardour/automatable.cc b/libs/ardour/automatable.cc
index 991a2a3880..e04040b014 100644
--- a/libs/ardour/automatable.cc
+++ b/libs/ardour/automatable.cc
@@ -747,10 +747,21 @@ Automatable::find_prev_ac_event (std::shared_ptr<AutomationControl> c, timepos_t
 void
 Automatable::start_domain_bounce (Temporal::DomainBounceInfo& cmd)
 {
-#warning paul automatable domain bouncing still needs work
+	for (auto & c : _controls) {
+		std::shared_ptr<Evoral::ControlList> cl = c.second->list();
+		if (cl) {
+			cl->start_domain_bounce (cmd);
+		}
+	}
 }
 
 void
 Automatable::finish_domain_bounce (Temporal::DomainBounceInfo& cmd)
 {
+	for (auto & c : _controls) {
+		std::shared_ptr<Evoral::ControlList> cl = c.second->list();
+		if (cl) {
+			cl->finish_domain_bounce (cmd);
+		}
+	}
 }
diff --git a/libs/evoral/ControlList.cc b/libs/evoral/ControlList.cc
index 4211b80d83..b01708adb4 100644
--- a/libs/evoral/ControlList.cc
+++ b/libs/evoral/ControlList.cc
@@ -2235,6 +2235,44 @@ ControlList::set_interpolation (InterpolationStyle s)
 	return true;
 }
 
+void
+ControlList::start_domain_bounce (Temporal::DomainBounceInfo& dbi)
+{
+	if (time_domain() == dbi.to) {
+		return;
+	}
+
+	Glib::Threads::RWLock::ReaderLock olm (_lock);
+
+	for (auto const & e : _events) {
+		timepos_t t (e->when);
+		t.set_time_domain (dbi.to);
+		dbi.positions.insert (std::make_pair (&e->when, e->when));
+	}
+}
+
+void
+ControlList::finish_domain_bounce (Temporal::DomainBounceInfo& dbi)
+{
+	if (time_domain() == dbi.from) {
+		return;
+	}
+
+	{
+		Glib::Threads::RWLock::WriterLock lm (_lock);
+		for (auto const & e : _events) {
+			Temporal::TimeDomainPosChanges::iterator tdc = dbi.positions.find (&e->when);
+			assert (tdc != dbi.positions.end());
+
+			timepos_t t (tdc->second);
+			t.set_time_domain (dbi.from);
+			e->when = t;
+		}
+	}
+
+	maybe_signal_changed ();
+}
+
 bool
 ControlList::operator!= (ControlList const& other) const
 {
diff --git a/libs/evoral/evoral/ControlList.h b/libs/evoral/evoral/ControlList.h
index b7a208b334..29f900ed1c 100644
--- a/libs/evoral/evoral/ControlList.h
+++ b/libs/evoral/evoral/ControlList.h
@@ -35,6 +35,7 @@
 #include "pbd/signals.h"
 
 #include "temporal/domain_provider.h"
+#include "temporal/domain_swap.h"
 #include "temporal/timeline.h"
 #include "temporal/types.h"
 #include "temporal/range.h"
@@ -85,7 +86,7 @@ public:
 
 /** A list (sequence) of time-stamped values for a control
  */
-class LIBEVORAL_API ControlList : public Temporal::TimeDomainProvider
+class LIBEVORAL_API ControlList : public Temporal::TimeDomainProvider, public Temporal::TimeDomainSwapper
 {
 public:
 	typedef std::list<ControlEvent*> EventList;
@@ -371,6 +372,9 @@ public:
 
 	void invalidate_insert_iterator ();
 
+	void start_domain_bounce (Temporal::DomainBounceInfo&);
+	void finish_domain_bounce (Temporal::DomainBounceInfo&);
+
   protected:
 
 	/** Called by unlocked_eval() to handle cases of 3 or more control points. */