basic GUI framework for setting Disk I/O options

gtk2_ardour/ardour.menus.in

@@ -664,6 +664,12 @@
     <menuitem action='controls'/>
     <menuitem action='send_options'/>
     <separator/>
+    <menu action="disk-io-menu">
+        <menuitem action='disk-io-prefader'/>
+	<menuitem action='disk-io-postfader'/>
+	<menuitem action='disk-io-custom'/>
+    </menu>
+    <separator/>
     <menuitem action='clear'/>
     <menuitem action='clear_pre'/>
     <menuitem action='clear_post'/>

gtk2_ardour/mixer_strip.cc

@@ -1727,6 +1727,18 @@ MixerStrip::build_route_ops_menu ()
 		i->signal_activate().connect (sigc::hide_return (sigc::bind (sigc::mem_fun (*_route, &Route::set_strict_io), !_route->strict_io())));
 	}
 
+	if (is_track()) {
+		items.push_back (SeparatorElem());
+
+		Gtk::Menu* dio_menu = new Menu;
+		MenuList& dio_items = dio_menu->items();
+		dio_items.push_back (MenuElem (_("Record Pre-Fader"), sigc::bind (sigc::mem_fun (*this, &RouteUI::set_disk_io_point), DiskIOPreFader)));
+		dio_items.push_back (MenuElem (_("Record Post-Fader"), sigc::bind (sigc::mem_fun (*this, &RouteUI::set_disk_io_point), DiskIOPostFader)));
+		dio_items.push_back (MenuElem (_("Custom Record+Playback Positions"), sigc::bind (sigc::mem_fun (*this, &RouteUI::set_disk_io_point), DiskIOCustom)));
+
+		items.push_back (MenuElem (_("Disk I/O..."), *dio_menu));
+	}
+
 	_plugin_insert_cnt = 0;
 	_route->foreach_processor (sigc::mem_fun (*this, &MixerStrip::help_count_plugins));
 	if (_plugin_insert_cnt > 0) {

gtk2_ardour/processor_box.cc

@@ -113,6 +113,7 @@ RefPtr<Action> ProcessorBox::rename_action;
 RefPtr<Action> ProcessorBox::delete_action;
 RefPtr<Action> ProcessorBox::backspace_action;
 RefPtr<Action> ProcessorBox::manage_pins_action;
+RefPtr<Action> ProcessorBox::disk_io_action;
 RefPtr<Action> ProcessorBox::edit_action;
 RefPtr<Action> ProcessorBox::edit_generic_action;
 RefPtr<ActionGroup> ProcessorBox::processor_box_actions;
@@ -2105,7 +2106,6 @@ ProcessorBox::show_processor_menu (int arg)
 
 	/* Sensitise actions as approprioate */
 
-
 	const bool sensitive = !processor_display.selection().empty() && ! stub_processor_selected ();
 
 	paste_action->set_sensitive (!_p_selection.processors.empty());
@@ -2123,6 +2123,11 @@ ProcessorBox::show_processor_menu (int arg)
 	}
 
 	manage_pins_action->set_sensitive (pi != 0);
+	if (boost::dynamic_pointer_cast<Track>(_route)) {
+		disk_io_action->set_sensitive (true);
+	} else {
+		disk_io_action->set_sensitive (false);
+	}
 
 	/* allow editing with an Ardour-generated UI for plugin inserts with editors */
 	edit_action->set_sensitive (pi && pi->plugin()->has_editor ());
@@ -3367,6 +3372,14 @@ ProcessorBox::ab_plugins ()
 	ab_direction = !ab_direction;
 }
 
+void
+ProcessorBox::set_disk_io_position (DiskIOPoint diop)
+{
+	boost::shared_ptr<Track> t = boost::dynamic_pointer_cast<Track> (_route);
+	if (t) {
+		t->set_disk_io_position (diop);
+	}
+}
 
 void
 ProcessorBox::clear_processors ()
@@ -3647,6 +3660,12 @@ ProcessorBox::register_actions ()
 		processor_box_actions, X_("manage-pins"), _("Pin Connections..."),
 		sigc::ptr_fun (ProcessorBox::rb_manage_pins));
 
+	/* Disk IO stuff */
+	disk_io_action = myactions.register_action (processor_box_actions, X_("disk-io-menu"), _("Disk I/O ..."));
+	myactions.register_action (processor_box_actions, X_("disk-io-prefader"), _("Pre-Fader."), sigc::bind (sigc::ptr_fun (ProcessorBox::rb_set_disk_io_position), DiskIOPreFader));
+	myactions.register_action (processor_box_actions, X_("disk-io-postfader"), _("Post-Fader."), sigc::bind (sigc::ptr_fun (ProcessorBox::rb_set_disk_io_position), DiskIOPostFader));
+	myactions.register_action (processor_box_actions, X_("disk-io-custom"), _("Custom."), sigc::bind (sigc::ptr_fun (ProcessorBox::rb_set_disk_io_position), DiskIOCustom));
+
 	/* show editors */
 	edit_action = myactions.register_action (
 		processor_box_actions, X_("edit"), _("Edit..."),
@@ -3679,6 +3698,16 @@ ProcessorBox::rb_ab_plugins ()
 	_current_processor_box->ab_plugins ();
 }
 
+void
+ProcessorBox::rb_set_disk_io_position (DiskIOPoint diop)
+{
+	if (_current_processor_box == 0) {
+		return;
+	}
+
+	_current_processor_box->set_disk_io_position (diop);
+}
+
 void
 ProcessorBox::rb_manage_pins ()
 {

gtk2_ardour/processor_box.h

@@ -552,6 +552,8 @@ private:
 	void for_selected_processors (void (ProcessorBox::*pmf)(boost::shared_ptr<ARDOUR::Processor>));
 	void get_selected_processors (ProcSelection&) const;
 
+	void set_disk_io_position (ARDOUR::DiskIOPoint);
+
 	bool can_cut() const;
 	bool stub_processor_selected() const;
 
@@ -562,6 +564,7 @@ private:
 	static Glib::RefPtr<Gtk::Action> delete_action;
 	static Glib::RefPtr<Gtk::Action> backspace_action;
 	static Glib::RefPtr<Gtk::Action> manage_pins_action;
+	static Glib::RefPtr<Gtk::Action> disk_io_action;
 	static Glib::RefPtr<Gtk::Action> edit_action;
 	static Glib::RefPtr<Gtk::Action> edit_generic_action;
 	void paste_processor_state (const XMLNodeList&, boost::shared_ptr<ARDOUR::Processor>);
@@ -595,6 +598,7 @@ private:
 	static void rb_deactivate_all ();
 	static void rb_ab_plugins ();
 	static void rb_manage_pins ();
+	static void rb_set_disk_io_position (ARDOUR::DiskIOPoint);
 	static void rb_edit ();
 	static void rb_edit_generic ();
 

gtk2_ardour/route_ui.cc

@@ -2426,3 +2426,11 @@ RouteUI::stripable () const
 {
 	return _route;
 }
+
+void
+RouteUI::set_disk_io_point (DiskIOPoint diop)
+{
+	if (_route && is_track()) {
+		track()->set_disk_io_position (diop);
+	}
+}

gtk2_ardour/route_ui.h

@@ -271,6 +271,8 @@ public:
 	void comment_edited ();
 	bool ignore_comment_edit;
 
+	void set_disk_io_point (ARDOUR::DiskIOPoint);
+
 protected:
 
 	ArdourWindow*  comment_window;