From a29510c1c4abc10892fbcb3221db81b4b96fe4dc Mon Sep 17 00:00:00 2001
From: Ben Loftis <ben@harrisonconsoles.com>
Date: Wed, 26 Jan 2022 09:22:15 -0600
Subject: [PATCH] trigger_ui: highlight Cue buttons when the user clicks them

---
 gtk2_ardour/cuebox_ui.cc | 8 ++++++++
 gtk2_ardour/cuebox_ui.h  | 1 +
 2 files changed, 9 insertions(+)

diff --git a/gtk2_ardour/cuebox_ui.cc b/gtk2_ardour/cuebox_ui.cc
index 884b2b05ac..117aa67dfd 100644
--- a/gtk2_ardour/cuebox_ui.cc
+++ b/gtk2_ardour/cuebox_ui.cc
@@ -54,6 +54,7 @@ using namespace PBD;
 CueEntry::CueEntry (Item* item, uint64_t cue_index)
 	: ArdourCanvas::Rectangle (item)
 	, _cue_idx (cue_index)
+	, _grabbed (false)
 {
 	set_layout_sensitive (true); // why???
 
@@ -92,6 +93,12 @@ CueEntry::event_handler (GdkEvent* ev)
 {
 	switch (ev->type) {
 		case GDK_BUTTON_PRESS:
+			_grabbed = true;
+			set_fill_color (UIConfiguration::instance ().color ("neutral:foregroundest"));
+			break;
+		case GDK_BUTTON_RELEASE:
+			_grabbed = false;
+			set_default_colors ();
 			break;
 		case GDK_ENTER_NOTIFY:
 			if (ev->crossing.detail != GDK_NOTIFY_INFERIOR) {
@@ -100,6 +107,7 @@ CueEntry::event_handler (GdkEvent* ev)
 			}
 			break;
 		case GDK_LEAVE_NOTIFY:
+			_grabbed = false;
 			if (ev->crossing.detail != GDK_NOTIFY_INFERIOR) {
 				set_default_colors ();
 			}
diff --git a/gtk2_ardour/cuebox_ui.h b/gtk2_ardour/cuebox_ui.h
index 4e2a1e1985..22666933e8 100644
--- a/gtk2_ardour/cuebox_ui.h
+++ b/gtk2_ardour/cuebox_ui.h
@@ -67,6 +67,7 @@ private:
 	uint64_t _cue_idx;
 	double   _poly_size;
 	double   _poly_margin;
+	bool _grabbed;
 };
 
 class CueBoxUI : public ArdourCanvas::Rectangle, public ARDOUR::SessionHandlePtr