From b0af872de25a6e7ccd955d938f50c210c130dadb Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Wed, 20 Aug 2025 12:50:16 +0200
Subject: [PATCH] Add "clear" button to RTA Window

---
 gtk2_ardour/rta_window.cc | 10 ++++++++++
 gtk2_ardour/rta_window.h  |  2 ++
 2 files changed, 12 insertions(+)

diff --git a/gtk2_ardour/rta_window.cc b/gtk2_ardour/rta_window.cc
index c38b83df40..5a7d1c19a0 100644
--- a/gtk2_ardour/rta_window.cc
+++ b/gtk2_ardour/rta_window.cc
@@ -44,6 +44,7 @@ using namespace ARDOUR;
 RTAWindow::RTAWindow ()
 	: ArdourWindow (_("Realtime Perceptual Analyzer"))
 	, _pause (_("Freeze"), ArdourWidgets::ArdourButton::default_elements, true)
+	, _clear (_("Clear"), ArdourWidgets::ArdourButton::default_elements)
 	, _visible (false)
 	, _margin (24)
 	, _min_dB (-60)
@@ -56,6 +57,8 @@ RTAWindow::RTAWindow ()
 	_pause.signal_clicked.connect (mem_fun (*this, &RTAWindow::pause_toggled));
 	_pause.set_name ("rta freeze button");
 
+	_clear.signal_clicked.connect (mem_fun (*this, &RTAWindow::clear_clicked));
+
 	_darea.add_events (Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK | Gdk::POINTER_MOTION_MASK | Gdk::LEAVE_NOTIFY_MASK);
 	_darea.signal_size_request ().connect (sigc::mem_fun (*this, &RTAWindow::darea_size_request));
 	_darea.signal_size_allocate ().connect (sigc::mem_fun (*this, &RTAWindow::darea_size_allocate));
@@ -101,6 +104,7 @@ RTAWindow::RTAWindow ()
 	_ctrlbox.pack_start (_warp_dropdown, false, false);
 	_ctrlbox.pack_start (_pointer_info, false, false, 5);
 	_ctrlbox.pack_end (_pause, false, false);
+	_ctrlbox.pack_end (_clear, false, false);
 
 	_vpacker.pack_start (_darea, true, true);
 	_vpacker.pack_start (_ctrlbox, false, false, 5);
@@ -244,6 +248,12 @@ RTAWindow::pause_toggled ()
 	RTAManager::instance ()->set_active (_visible && !_pause.get_active ());
 }
 
+void
+RTAWindow::clear_clicked ()
+{
+	RTAManager::instance ()->clear ();
+}
+
 void
 RTAWindow::rta_settings_changed ()
 {
diff --git a/gtk2_ardour/rta_window.h b/gtk2_ardour/rta_window.h
index 88f2f64c54..434d866722 100644
--- a/gtk2_ardour/rta_window.h
+++ b/gtk2_ardour/rta_window.h
@@ -65,6 +65,7 @@ private:
 	void set_rta_warp (ARDOUR::DSP::PerceptualAnalyzer::Warp);
 
 	void pause_toggled ();
+	void clear_clicked ();
 
 	enum DragStatus {
 		DragNone,
@@ -82,6 +83,7 @@ private:
 	Gtk::DrawingArea                   _darea;
 	Gtk::Label                         _pointer_info;
 	ArdourWidgets::ArdourButton        _pause;
+	ArdourWidgets::ArdourButton        _clear;
 	ArdourWidgets::ArdourDropdown      _speed_dropdown;
 	ArdourWidgets::ArdourDropdown      _warp_dropdown;
 	Cairo::RefPtr<Cairo::ImageSurface> _grid;