resurrected the periodic safety backup. defaults to 120 second interval between saves. never lose your work again.

git-svn-id: svn://localhost/ardour2/trunk@1732 d708f5d6-7413-0410-9779-e7cbd77b26cf

6 files changed, 53 insertions, 2 deletions

diff --git a/gtk2_ardour/ardour.menus b/gtk2_ardour/ardour.menus
index 9b857b5a52..5529b4de0c 100644
--- a/gtk2_ardour/ardour.menus
+++ b/gtk2_ardour/ardour.menus
@@ -348,6 +348,7 @@
                <menuitem action='LatchedRecordEnable'/>
                <menuitem action='RegionEquivalentsOverlap'/>
                <separator/>
+               <menuitem action='PeriodicSafetyBackups'/>
                <menuitem action='VerifyRemoveLastCapture'/>
                <menuitem action='StopRecordingOnXrun'/>
                <menuitem action='StopTransportAtEndOfSession'/>
diff --git a/gtk2_ardour/ardour_ui.cc b/gtk2_ardour/ardour_ui.cc
index 8fa4f283f8..850f29fe0a 100644
--- a/gtk2_ardour/ardour_ui.cc
+++ b/gtk2_ardour/ardour_ui.cc
@@ -428,6 +428,39 @@ ARDOUR_UI::save_ardour_state ()
 	save_keybindings ();
 }
 
+gint
+ARDOUR_UI::autosave_session ()
+{
+        if (!Config->get_periodic_safety_backups())
+                return 1;
+        
+        if (session) {
+                session->maybe_write_autosave();
+        }
+
+        return 1;
+}
+
+void
+ARDOUR_UI::update_autosave ()
+{
+        ENSURE_GUI_THREAD (mem_fun (*this, &ARDOUR_UI::update_autosave));
+        
+        if (session->dirty()) {
+                if (_autosave_connection.connected()) {
+                        _autosave_connection.disconnect();
+                }
+
+                _autosave_connection = Glib::signal_timeout().connect (mem_fun (*this, &ARDOUR_UI::autosave_session),
+								    Config->get_periodic_safety_backup_interval() * 1000);
+
+        } else {
+                if (_autosave_connection.connected()) {
+                        _autosave_connection.disconnect();
+                }               
+        }
+}
+
 void
 ARDOUR_UI::startup ()
 {
diff --git a/gtk2_ardour/ardour_ui.h b/gtk2_ardour/ardour_ui.h
index 3cee38372b..1ebb7407af 100644
--- a/gtk2_ardour/ardour_ui.h
+++ b/gtk2_ardour/ardour_ui.h
@@ -291,6 +291,11 @@ class ARDOUR_UI : public Gtkmm2ext::UI
 	int  ask_about_saving_session (const string & why);
 	int  save_the_session;
 
+	/* periodic safety backup, to be precise */
+	gint autosave_session();
+	void update_autosave();
+	sigc::connection _autosave_connection;
+
 	void queue_transport_change ();
 	void map_transport_state ();
 	int32_t do_engine_start ();
@@ -668,6 +673,7 @@ class ARDOUR_UI : public Gtkmm2ext::UI
 	void toggle_StopPluginsWithTransport();
 	void toggle_DoNotRunPluginsWhileRecording();
 	void toggle_VerifyRemoveLastCapture();
+	void toggle_PeriodicSafetyBackups();
 	void toggle_StopRecordingOnXrun();
 	void toggle_StopTransportAtEndOfSession();
 	void toggle_GainReduceFastTransport();
diff --git a/gtk2_ardour/ardour_ui_dialogs.cc b/gtk2_ardour/ardour_ui_dialogs.cc
index c3b82c74a8..8a50697e85 100644
--- a/gtk2_ardour/ardour_ui_dialogs.cc
+++ b/gtk2_ardour/ardour_ui_dialogs.cc
@@ -126,6 +126,10 @@ ARDOUR_UI::connect_to_session (Session *s)
 
 	solo_alert_button.set_active (session->soloing());
 
+	/* update autochange callback on dirty state changing */
+
+	session->DirtyChanged.connect (mem_fun(*this, &ARDOUR_UI::update_autosave));
+
 	/* can't be auditioning here */
 
 	primary_clock.set_session (s);
diff --git a/gtk2_ardour/ardour_ui_ed.cc b/gtk2_ardour/ardour_ui_ed.cc
index 7ecbb0d01b..1add49af69 100644
--- a/gtk2_ardour/ardour_ui_ed.cc
+++ b/gtk2_ardour/ardour_ui_ed.cc
@@ -402,6 +402,7 @@ ARDOUR_UI::install_actions ()
 
 	ActionManager::register_toggle_action (option_actions, X_("StopPluginsWithTransport"), _("Stop plugins with transport"), mem_fun (*this, &ARDOUR_UI::toggle_StopPluginsWithTransport));
 	ActionManager::register_toggle_action (option_actions, X_("VerifyRemoveLastCapture"), _("Verify remove last capture"), mem_fun (*this, &ARDOUR_UI::toggle_VerifyRemoveLastCapture));
+	ActionManager::register_toggle_action (option_actions, X_("PeriodicSafetyBackups"), _("Make periodic safety backups"), mem_fun (*this, &ARDOUR_UI::toggle_PeriodicSafetyBackups));
 	ActionManager::register_toggle_action (option_actions, X_("StopRecordingOnXrun"), _("Stop recording on xrun"), mem_fun (*this, &ARDOUR_UI::toggle_StopRecordingOnXrun));
 	ActionManager::register_toggle_action (option_actions, X_("StopTransportAtEndOfSession"), _("Stop transport at session end"), mem_fun (*this, &ARDOUR_UI::toggle_StopTransportAtEndOfSession));
 	ActionManager::register_toggle_action (option_actions, X_("GainReduceFastTransport"), _("-12dB gain reduce ffwd/rewind"), mem_fun (*this, &ARDOUR_UI::toggle_GainReduceFastTransport));
diff --git a/gtk2_ardour/ardour_ui_options.cc b/gtk2_ardour/ardour_ui_options.cc
index 9565c46e40..34431aeafb 100644
--- a/gtk2_ardour/ardour_ui_options.cc
+++ b/gtk2_ardour/ardour_ui_options.cc
@@ -399,6 +399,12 @@ ARDOUR_UI::toggle_VerifyRemoveLastCapture()
 }
 
 void
+ARDOUR_UI::toggle_PeriodicSafetyBackups()
+{
+	ActionManager::toggle_config_state ("options", "PeriodicSafetyBackups", &Configuration::set_periodic_safety_backups, &Configuration::get_periodic_safety_backups);
+}
+
+void
 ARDOUR_UI::toggle_StopRecordingOnXrun()
 {
 	ActionManager::toggle_config_state ("options", "StopRecordingOnXrun", &Configuration::set_stop_recording_on_xrun, &Configuration::get_stop_recording_on_xrun);
@@ -891,6 +897,8 @@ ARDOUR_UI::parameter_changed (const char* parameter_name)
 		ActionManager::map_some_state ("options", "LatchedRecordEnable", &Configuration::get_latched_record_enable);
 	} else if (PARAM_IS ("verify-remove-last-capture")) {
 		ActionManager::map_some_state ("options",  "VerifyRemoveLastCapture", &Configuration::get_verify_remove_last_capture);
+	} else if (PARAM_IS ("periodic-safety-backups")) {
+		ActionManager::map_some_state ("options",  "PeriodicSafetyBackups", &Configuration::get_periodic_safety_backups);
 	} else if (PARAM_IS ("stop-recording-on-xrun")) {
 		ActionManager::map_some_state ("options",  "StopRecordingOnXrun", &Configuration::get_stop_recording_on_xrun);
 	} else if (PARAM_IS ("stop-at-session-end")) {
@@ -944,8 +952,6 @@ ARDOUR_UI::parameter_changed (const char* parameter_name)
 		map_meter_hold ();
 	} else if (PARAM_IS ("meter-falloff")) {
 		map_meter_falloff ();
-	} else if (PARAM_IS ("verify-remove-last-capture")) {
-		ActionManager::map_some_state ("options", "VerifyRemoveLastCapture", &Configuration::get_verify_remove_last_capture);
 	} else if (PARAM_IS ("video-pullup") || PARAM_IS ("smpte-format")) {
 		if (session) {
 			primary_clock.set (session->audible_frame(), true);