Show plugin UIs in Route Property Box

gtk2_ardour/route_properties_box.cc

@@ -17,35 +17,41 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#include "pbd/compose.h"
-#include <algorithm>
+#include <cassert>
+#include <gtkmm/widget.h>
+
+#include "pbd/compose.h"
+
+#include "ardour/plugin_insert.h"
+#include "ardour/port_insert.h"
+#include "ardour/route.h"
+#include "ardour/session.h"
 
-#include "gtkmm2ext/actions.h"
 #include "gtkmm2ext/gui_thread.h"
 #include "gtkmm2ext/utils.h"
 
-#include "ardour/location.h"
-#include "ardour/profile.h"
-#include "ardour/session.h"
-
-#include "audio_clock.h"
-#include "automation_line.h"
-#include "control_point.h"
-#include "editor.h"
-#include "region_view.h"
+#include "widgets/frame.h"
 
+#include "plugin_selector.h"
+#include "plugin_ui.h"
+#include "port_insert_ui.h"
 #include "route_properties_box.h"
+#include "timers.h"
 
 #include "pbd/i18n.h"
 
 using namespace Gtk;
 using namespace ARDOUR;
 using namespace ArdourWidgets;
-using std::max;
-using std::min;
 
 RoutePropertiesBox::RoutePropertiesBox ()
 {
+	_scroller.set_policy (Gtk::POLICY_AUTOMATIC, Gtk::POLICY_NEVER);
+	_scroller.add (_box);
+
+	_box.set_spacing (4);
+
+	pack_start (_scroller, true, true);
 	show_all();
 }
 
@@ -54,15 +60,98 @@ RoutePropertiesBox::~RoutePropertiesBox ()
 }
 
 void
-RoutePropertiesBox::set_route (std::shared_ptr<ARDOUR::Route> rt)
+RoutePropertiesBox::session_going_away ()
 {
-	//TODO: route properties
-//	rt->PropertyChanged.connect (state_connection, invalidator (*this), boost::bind (&RoutePropertiesBox::region_changed, this, _1), gui_context ());
+	ENSURE_GUI_THREAD (*this, &RoutePropertiesBox::session_going_away);
+	SessionHandlePtr::session_going_away ();
+
+	drop_plugin_uis ();
+	drop_route ();
+}
+
+void
+RoutePropertiesBox::set_route (std::shared_ptr<Route> r)
+{
+	assert (r);
+	_route = r;
+	_route_connections.drop_connections ();
+
+	_route->processors_changed.connect (_route_connections, invalidator (*this), std::bind (&RoutePropertiesBox::refill_processors, this), gui_context());
+	_route->PropertyChanged.connect (_route_connections, invalidator (*this), std::bind (&RoutePropertiesBox::property_changed, this, _1), gui_context ());
+	_route->DropReferences.connect (_route_connections, invalidator (*this), std::bind (&RoutePropertiesBox::drop_route, this), gui_context());
+	refill_processors ();
 }
 
 void
 RoutePropertiesBox::property_changed (const PBD::PropertyChange& what_changed)
 {
-
-
+}
+
+void
+RoutePropertiesBox::drop_route ()
+{
+	drop_plugin_uis ();
+	_route.reset ();
+	_route_connections.drop_connections ();
+}
+
+void
+RoutePropertiesBox::drop_plugin_uis ()
+{
+	std::list<Gtk::Widget*> children = _box.get_children ();
+	for (auto const& child : children) {
+		child->hide ();
+		_box.remove (*child);
+		delete child;
+	}
+
+	for (auto const& ui : _proc_uis) {
+		ui->stop_updating (0);
+		delete ui;
+	}
+
+	_processor_connections.drop_connections ();
+	_proc_uis.clear ();
+}
+
+void
+RoutePropertiesBox::add_processor_to_display (std::weak_ptr<Processor> w)
+{
+	std::shared_ptr<Processor> p = w.lock ();
+	std::shared_ptr<PlugInsertBase> pib = std::dynamic_pointer_cast<PlugInsertBase> (p);
+	if (!pib) {
+		return;
+	}
+	GenericPluginUI* plugin_ui = new GenericPluginUI (pib, true, true);
+	pib->DropReferences.connect (_processor_connections, invalidator (*this), std::bind (&RoutePropertiesBox::refill_processors, this), gui_context());
+	_proc_uis.push_back (plugin_ui);
+
+	ArdourWidgets::Frame* frame = new ArdourWidgets::Frame ();
+	frame->set_label (p->display_name ());
+	frame->add (*plugin_ui);
+	_box.pack_start (*frame, false, false);
+	plugin_ui->show ();
+}
+
+void
+RoutePropertiesBox::refill_processors ()
+{
+	if (!_session || _session->deletion_in_progress()) {
+		return;
+	}
+	drop_plugin_uis ();
+
+	assert (_route);
+	_route->foreach_processor (sigc::mem_fun (*this, &RoutePropertiesBox::add_processor_to_display));
+	if (_proc_uis.empty ()) {
+		_scroller.hide ();
+	} else {
+		int h = 60;
+		for (auto const& ui : _proc_uis) {
+			h = std::max<int> (h, ui->get_preferred_height () + /* frame label */ 22);
+		}
+		h = std::min<int> (h, 300);
+		_scroller.set_size_request (-1, h);
+		_scroller.show_all ();
+	}
 }

gtk2_ardour/route_properties_box.h

@@ -1,6 +1,7 @@
 /*
  * Copyright (C) 2021 Paul Davis <paul@linuxaudiosystems.com>
  * Copyright (C) 2024 Ben Loftis <ben@harrisonconsoles.com>
+ * Copyright (C) 2024 Robin Gareus <robin@gareus.org>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -19,44 +20,45 @@
 
 #pragma once
 
-#include <map>
+#include <vector>
 
 #include <gtkmm/box.h>
-#include <gtkmm/label.h>
-#include <gtkmm/table.h>
+#include <gtkmm/scrolledwindow.h>
 
 #include "ardour/ardour.h"
 #include "ardour/session_handle.h"
 
-#include "widgets/ardour_button.h"
-
-#include "gtkmm2ext/cairo_packer.h"
-
-#include "region_editor.h"
-#include "audio_clock.h"
-
-namespace ARDOUR
-{
+namespace ARDOUR {
+	class Route;
+	class Processor;
 	class Session;
-	class Location;
 }
 
+class GenericPluginUI;
+
 class RoutePropertiesBox : public Gtk::HBox, public ARDOUR::SessionHandlePtr
 {
 public:
 	RoutePropertiesBox ();
 	~RoutePropertiesBox ();
 
-	virtual void set_route (std::shared_ptr<ARDOUR::Route>);
-
-protected:
-	std::shared_ptr<ARDOUR::Region> _route;
-
-	Gtk::Label _header_label;
+	void set_route (std::shared_ptr<ARDOUR::Route>);
 
 private:
 	void property_changed (const PBD::PropertyChange& what_changed);
+	void session_going_away ();
+	void drop_route ();
+	void drop_plugin_uis ();
+	void refill_processors ();
+	void add_processor_to_display (std::weak_ptr<ARDOUR::Processor> w);
 
-	PBD::ScopedConnection state_connection;
+	Gtk::ScrolledWindow _scroller;
+	Gtk::HBox           _box;
+
+	std::shared_ptr<ARDOUR::Route> _route;
+	std::vector <GenericPluginUI*> _proc_uis;
+
+	PBD::ScopedConnectionList _processor_connections;
+	PBD::ScopedConnectionList _route_connections;
 };