From 42df6be0fa103e59ec56fe5d62c4f8c8ac4730f3 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Wed, 9 Feb 2022 21:04:43 +0100
Subject: [PATCH] Show Trigger Patch Selector on selection

---
 gtk2_ardour/trigger_page.cc | 16 ++++++++++++++++
 gtk2_ardour/trigger_page.h  |  2 ++
 2 files changed, 18 insertions(+)

diff --git a/gtk2_ardour/trigger_page.cc b/gtk2_ardour/trigger_page.cc
index aa220d5dbb..ee8845fff3 100644
--- a/gtk2_ardour/trigger_page.cc
+++ b/gtk2_ardour/trigger_page.cc
@@ -390,6 +390,8 @@ TriggerPage::selection_changed ()
 
 	_parameter_box.hide ();
 
+	bool hide_patch_selector = true;
+
 	if (!selection.triggers.empty ()) {
 		TriggerSelection ts      = selection.triggers;
 		TriggerEntry*    entry   = *ts.begin ();
@@ -408,6 +410,20 @@ TriggerPage::selection_changed ()
 			}
 		}
 		_parameter_box.show ();
+
+		if (boost::dynamic_pointer_cast<MIDITrigger> (trigger)) {
+			/* TODO @ben: only show optionally. checkbox? */
+			hide_patch_selector = false;
+			SessionObject* obj = trigger->box ().owner ();
+			boost::shared_ptr<Stripable> stripable = _session->stripable_by_id (obj->id ());
+			_patch_change_window.reset (boost::dynamic_pointer_cast<Route> (stripable), boost::dynamic_pointer_cast<MIDITrigger> (trigger));
+			_patch_change_window.present ();
+		}
+	}
+
+	if (hide_patch_selector) {
+		_patch_change_window.hide ();
+		_patch_change_window.clear (); /* drop route/trigger ref */
 	}
 }
 
diff --git a/gtk2_ardour/trigger_page.h b/gtk2_ardour/trigger_page.h
index 8be4904dbc..1a0c66af51 100644
--- a/gtk2_ardour/trigger_page.h
+++ b/gtk2_ardour/trigger_page.h
@@ -38,6 +38,7 @@
 #include "midi_region_operations_box.h"
 #include "midi_region_properties_box.h"
 #include "midi_trigger_properties_box.h"
+#include "patch_change_widget.h"
 #include "route_processor_selection.h"
 #include "slot_properties_box.h"
 #include "trigger_clip_picker.h"
@@ -137,6 +138,7 @@ private:
 	MidiClipEditorBox        _midi_trim_box;
 #endif
 
+	PatchChangeTriggerWindow _patch_change_window;
 	RouteProcessorSelection  _selection;
 	std::list<TriggerStrip*> _strips;
 	sigc::connection         _fast_screen_update_connection;