basics of managing a list of port names for MIDI-input-follows-selection

2 files changed, 43 insertions, 0 deletions

diff --git a/libs/ardour/ardour/port_manager.h b/libs/ardour/ardour/port_manager.h
index 03484c598b..6433b1bd6d 100644
--- a/libs/ardour/ardour/port_manager.h
+++ b/libs/ardour/ardour/port_manager.h
@@ -128,6 +128,13 @@ class LIBARDOUR_API PortManager
 
 	bool port_remove_in_progress() const { return _port_remove_in_progress; }
 
+	typedef std::vector<std::string> MidiSelectionPorts;
+
+	void get_midi_selection_ports (MidiSelectionPorts&) const;
+	void add_to_midi_selection_ports (std::string const&);
+	void remove_from_midi_selection_ports (std::string const&);
+	void clear_midi_selection_ports ();
+
 	/** Emitted if the backend notifies us of a graph order event */
 	PBD::Signal0<void> GraphReordered;
 
@@ -170,6 +177,9 @@ class LIBARDOUR_API PortManager
 	 * Realtime safe.
 	 */
 	void cycle_end (pframes_t nframes);
+
+	mutable Glib::Threads::Mutex midi_selection_ports_mutex;
+	MidiSelectionPorts _midi_selection_ports;
 };
 
 
diff --git a/libs/ardour/port_manager.cc b/libs/ardour/port_manager.cc
index 7a13756dab..d24c929930 100644
--- a/libs/ardour/port_manager.cc
+++ b/libs/ardour/port_manager.cc
@@ -851,3 +851,36 @@ PortManager::port_is_control_only (std::string const& name)
 
 	return regexec (&compiled_pattern, name.c_str(), 0, 0, 0) == 0;
 }
+
+void
+PortManager::get_midi_selection_ports (MidiSelectionPorts& copy) const
+{
+	Glib::Threads::Mutex::Lock lm (midi_selection_ports_mutex);
+	copy = _midi_selection_ports;
+}
+
+void
+PortManager::add_to_midi_selection_ports (string const & port)
+{
+	Glib::Threads::Mutex::Lock lm (midi_selection_ports_mutex);
+	if (find (_midi_selection_ports.begin(), _midi_selection_ports.end(), port) == _midi_selection_ports.end()) {
+		_midi_selection_ports.push_back (port);
+	}
+}
+
+void
+PortManager::remove_from_midi_selection_ports (string const & port)
+{
+	Glib::Threads::Mutex::Lock lm (midi_selection_ports_mutex);
+	MidiSelectionPorts::iterator x = find (_midi_selection_ports.begin(), _midi_selection_ports.end(), port);
+	if (x != _midi_selection_ports.end()) {
+		_midi_selection_ports.erase (x);
+	}
+}
+
+void
+PortManager::clear_midi_selection_ports ()
+{
+	Glib::Threads::Mutex::Lock lm (midi_selection_ports_mutex);
+	_midi_selection_ports.clear ();
+}