From 75a990da8cf08a889ba6342d56b096188d8e6039 Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Thu, 20 Oct 2022 22:08:00 -0600
Subject: [PATCH] a start at custom MIDI learn for trigger slots (GUI edition)

---
 gtk2_ardour/trigger_ui.cc | 20 +++++++++++++++++++-
 gtk2_ardour/trigger_ui.h  |  3 +++
 2 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/gtk2_ardour/trigger_ui.cc b/gtk2_ardour/trigger_ui.cc
index 938bf18158..71d1af1044 100644
--- a/gtk2_ardour/trigger_ui.cc
+++ b/gtk2_ardour/trigger_ui.cc
@@ -437,13 +437,31 @@ TriggerUI::context_menu ()
 	items.push_back (MenuElem (_("Load..."), sigc::bind(sigc::mem_fun (*this, (&TriggerUI::choose_sample)), true)));
 	items.push_back (SeparatorElem());
 	items.push_back (MenuElem (_("Color..."), sigc::mem_fun (*this, &TriggerUI::choose_color)));
-	items.push_back (SeparatorElem());
 	items.push_back (MenuElem (_("Clear"), sigc::mem_fun (*this, &TriggerUI::clear_trigger)));
+	items.push_back (SeparatorElem());
+	items.push_back (MenuElem (_("MIDI Learn"), sigc::mem_fun (*this, &TriggerUI::trigger_midi_learn)));
+	items.push_back (MenuElem (_("MIDI un-Learn"), sigc::mem_fun (*this, &TriggerUI::trigger_midi_unlearn)));
 
 
 	_context_menu->popup (3, gtk_get_current_event_time ());
 }
 
+void
+TriggerUI::trigger_midi_learn ()
+{
+	if (!trigger()) {
+		return;
+	}
+
+	tref.box->begin_midi_learn (trigger()->index());
+}
+
+void
+TriggerUI::trigger_midi_unlearn ()
+{
+	tref.box->midi_unlearn (trigger()->index());
+}
+
 void
 TriggerUI::launch_context_menu ()
 {
diff --git a/gtk2_ardour/trigger_ui.h b/gtk2_ardour/trigger_ui.h
index 3d2864c5d2..83e4d4e09b 100644
--- a/gtk2_ardour/trigger_ui.h
+++ b/gtk2_ardour/trigger_ui.h
@@ -88,6 +88,9 @@ public:
 	void clear_trigger ();
 	void edit_trigger ();
 
+	void trigger_midi_learn ();
+	void trigger_midi_unlearn ();
+
 private:
 	void trigger_changed (PBD::PropertyChange const& );  //calls on_trigger_changed to subclasses