save recent templates analogously to recent sessions

libs/ardour/ardour/rc_configuration_vars.h

@@ -176,6 +176,7 @@ CONFIG_VARIABLE (bool, allow_special_bus_removal, "allow-special-bus-removal", f
 CONFIG_VARIABLE (int32_t, processor_usage, "processor-usage", -1)
 CONFIG_VARIABLE (gain_t, max_gain, "max-gain", 2.0) /* +6.0dB */
 CONFIG_VARIABLE (uint32_t, max_recent_sessions, "max-recent-sessions", 10)
+CONFIG_VARIABLE (uint32_t, max_recent_templates, "max-recent-templates", 10)
 CONFIG_VARIABLE (double, automation_thinning_factor, "automation-thinning-factor", 20.0)
 CONFIG_VARIABLE (std::string, freesound_download_dir, "freesound-download-dir", Glib::get_home_dir() + "/Freesound/snd")
 CONFIG_VARIABLE (framecnt_t, range_location_minimum, "range-location-minimum", 128) /* samples */

libs/ardour/ardour/recent_sessions.h

@@ -30,8 +30,11 @@ namespace ARDOUR {
 	typedef std::deque<std::pair<std::string,std::string> > RecentSessions;
 
 	LIBARDOUR_API int read_recent_sessions (RecentSessions& rs);
+	LIBARDOUR_API int read_recent_templates (std::deque<std::string>& rt);
 	LIBARDOUR_API int store_recent_sessions (std::string name, std::string path);
+	LIBARDOUR_API int store_recent_templates (const std::string& session_template_full_name);
 	LIBARDOUR_API int write_recent_sessions (RecentSessions& rs);
+	LIBARDOUR_API int write_recent_templates (std::deque<std::string>& rt);
 	LIBARDOUR_API int remove_recent_sessions (const std::string& path);
 }; // namespace ARDOUR
 

libs/ardour/recent_sessions.cc

@@ -39,6 +39,7 @@ using namespace PBD;
 namespace {
 
 	const char * const recent_file_name = "recent";
+	const char * const recent_templates_file_name = "recent_templates";
 
 } // anonymous
 
@@ -84,6 +85,38 @@ ARDOUR::read_recent_sessions (RecentSessions& rs)
 	return 0;
 }
 
+int
+ARDOUR::read_recent_templates (std::deque<std::string>& rt)
+{
+	std::string path = Glib::build_filename (user_config_directory(), recent_templates_file_name);
+
+	ifstream recent (path.c_str());
+
+	if (!recent) {
+		if (errno != ENOENT) {
+			error << string_compose (_("cannot open recent template file %1 (%2)"), path, strerror (errno)) << endmsg;
+			return -1;
+		} else {
+			return 1;
+		}
+	}
+
+	while (true) {
+
+		std::string session_template_full_name;
+
+		getline(recent, session_template_full_name);
+
+		if (!recent.good()) {
+			break;
+		}
+
+		rt.push_back (session_template_full_name);
+	}
+
+	return 0;
+}
+
 int
 ARDOUR::write_recent_sessions (RecentSessions& rs)
 {
@@ -102,6 +135,24 @@ ARDOUR::write_recent_sessions (RecentSessions& rs)
 	return 0;
 }
 
+int
+ARDOUR::write_recent_templates (std::deque<std::string>& rt)
+{
+	std::string path = Glib::build_filename (user_config_directory(), recent_templates_file_name);
+
+	std::ofstream recent (path.c_str());
+
+	if (!recent) {
+		return -1;
+	}
+
+	for (std::deque<std::string>::const_iterator i = rt.begin(); i != rt.end(); ++i) {
+		recent << (*i) << std::endl;
+	}
+
+	return 0;
+}
+
 int
 ARDOUR::store_recent_sessions (string name, string path)
 {
@@ -129,6 +180,28 @@ ARDOUR::store_recent_sessions (string name, string path)
 	return ARDOUR::write_recent_sessions (rs);
 }
 
+int
+ARDOUR::store_recent_templates (const std::string& session_template_full_name)
+{
+	std::deque<std::string> rt;
+
+	if (ARDOUR::read_recent_templates (rt) < 0) {
+		return -1;
+	}
+
+	rt.erase(remove (rt.begin(), rt.end(), session_template_full_name), rt.end());
+
+	rt.push_front (session_template_full_name);
+
+	uint32_t max_recent_templates = Config->get_max_recent_templates ();
+
+	if (rt.size() > max_recent_templates) {
+		rt.erase( rt.begin() + max_recent_templates, rt.end ());
+	}
+
+	return ARDOUR::write_recent_templates (rt);
+}
+
 int
 ARDOUR::remove_recent_sessions (const string& path)
 {

libs/ardour/session.cc

@@ -306,8 +306,11 @@ Session::Session (AudioEngine &eng,
 		 * of a template.
 		 */
 
-		if (!mix_template.empty() && load_state (_current_snapshot_name)) {
-			throw failed_constructor ();
+		if (!mix_template.empty()) { 
+			if (load_state (_current_snapshot_name)) {
+				throw failed_constructor ();
+			}
+			store_recent_templates (mix_template);
 		}
 
 		/* load default session properties - if any */

libs/ardour/session_state.cc

@@ -100,6 +100,7 @@
 #include "ardour/playlist_source.h"
 #include "ardour/port.h"
 #include "ardour/processor.h"
+#include "ardour/profile.h"
 #include "ardour/proxy_controllable.h"
 #include "ardour/recent_sessions.h"
 #include "ardour/region_factory.h"
@@ -2072,6 +2073,8 @@ Session::save_template (string template_name)
 		copy_files (plugins_dir(), template_plugin_state_path);
 	}
 
+	store_recent_templates (template_file_path);
+
 	return 0;
 }