libardour API to exercise get_port_property

libs/ardour/ardour/port.h

@@ -55,6 +55,9 @@ public:
 		return _name;
 	}
 
+	/** @return Port human readable name */
+	std::string pretty_name (bool fallback_to_name = false) const;
+
 	int set_name (std::string const &);
 
 	/** @return flags */

libs/ardour/ardour/port_manager.h

@@ -79,6 +79,7 @@ class LIBARDOUR_API PortManager
     void                    port_renamed (const std::string&, const std::string&);
     std::string             make_port_name_relative (const std::string& name) const;
     std::string             make_port_name_non_relative (const std::string& name) const;
+    std::string             get_pretty_name_by_name (const std::string& portname) const;
     bool                    port_is_mine (const std::string& fullname) const;
 
     /* other Port management */

libs/ardour/port.cc

@@ -83,6 +83,26 @@ Port::~Port ()
 	drop ();
 }
 
+
+std::string
+Port::pretty_name(bool fallback_to_name) const
+{
+	if (_port_handle) {
+		std::string value;
+		std::string type;
+		if (0 == port_engine.get_port_property (_port_handle,
+					"http://jackaudio.org/metadata/pretty-name",
+					value, type))
+		{
+			return value;
+		}
+	}
+	if (fallback_to_name) {
+		return name ();
+	}
+	return "";
+}
+
 void
 Port::drop ()
 {

libs/ardour/port_manager.cc

@@ -108,6 +108,23 @@ PortManager::make_port_name_non_relative (const string& portname) const
 	return str;
 }
 
+std::string
+PortManager::get_pretty_name_by_name(const std::string& portname) const
+{
+	PortEngine::PortHandle ph = _backend->get_port_by_name (portname);
+	if (ph) {
+		std::string value;
+		std::string type;
+		if (0 == _backend->get_port_property (ph,
+					"http://jackaudio.org/metadata/pretty-name",
+					value, type))
+		{
+			return value;
+		}
+	}
+	return "";
+}
+
 bool
 PortManager::port_is_mine (const string& portname) const
 {