Fix merge regression: use TempoLines class instead of same built in to editor.
[ardour.git] / libs / ardour / configuration.cc
index 3b4ad4b45f54bdea5506a4bec9718e587d03276b..56dfd99f024729cf26201bb02f7e72da5e8ee374 100644 (file)
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 1999 Paul Davis 
+    Copyright (C) 1999-2006 Paul Davis 
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id$
 */
 
 #include <unistd.h>
 #include <cstdio> /* for snprintf, grrr */
 
-#ifdef HAVE_WORDEXP
-#include <wordexp.h>
-#endif
+#include <glib.h>  
+#include <glib/gstdio.h> /* for g_stat() */
+#include <glibmm/miscutils.h>
 
 #include <pbd/failed_constructor.h>
 #include <pbd/xml++.h>
+#include <pbd/filesystem.h>
+#include <pbd/file_utils.h>
+
+#include <midi++/manager.h>
 
 #include <ardour/ardour.h>
 #include <ardour/configuration.h>
-#include <ardour/diskstream.h>
+#include <ardour/audio_diskstream.h>
+#include <ardour/control_protocol_manager.h>
+#include <ardour/filesystem_paths.h>
 
 #include "i18n.h"
 
 using namespace ARDOUR;
 using namespace std;
+using namespace PBD;
 
 /* this is global so that we do not have to indirect through an object pointer
    to reference it.
@@ -46,92 +52,114 @@ namespace ARDOUR {
 }
 
 Configuration::Configuration ()
+       :
+/* construct variables */
+#undef  CONFIG_VARIABLE
+#undef  CONFIG_VARIABLE_SPECIAL        
+#define CONFIG_VARIABLE(Type,var,name,value) var (name,value),
+#define CONFIG_VARIABLE_SPECIAL(Type,var,name,value,mutator) var (name,value,mutator),
+#include "ardour/configuration_vars.h"
+#undef  CONFIG_VARIABLE
+#undef  CONFIG_VARIABLE_SPECIAL
+
+
+       current_owner (ConfigVariableBase::Default)
 {
-       key_node = 0;
-       user_configuration = false;
-       set_defaults ();
+       _control_protocol_state = 0;
 }
 
 Configuration::~Configuration ()
 {
 }
-       
-string
-Configuration::get_user_path()
-{
-       char *envvar;
-
-       if ((envvar = getenv ("ARDOUR_RC")) != 0) {
-               return envvar;
-       }
-
-       return find_config_file ("ardour.rc");
-}
 
-string
-Configuration::get_system_path()
+void
+Configuration::set_current_owner (ConfigVariableBase::Owner owner)
 {
-       char* envvar;
-
-       if ((envvar = getenv ("ARDOUR_SYSTEM_RC")) != 0) {
-               return envvar;
-       }
-
-       return find_config_file ("ardour_system.rc");
+       current_owner = owner;
 }
 
 int
 Configuration::load_state ()
 {
-       string rcfile;
-       
-       /* load system configuration first */
-
-       rcfile = get_system_path ();
+       bool found = false;
 
-       if (rcfile.length()) {
+       sys::path system_rc_file;
+       struct stat statbuf;
 
+       /* load system configuration first */
+       
+       if ( find_file_in_search_path (ardour_search_path() + system_config_search_path(),
+                       "ardour_system.rc", system_rc_file) )
+       {
                XMLTree tree;
+               found = true;
 
-               cerr << "Loading system configuration file " << rcfile << endl;
+               string rcfile = system_rc_file.to_string();
 
-               if (!tree.read (rcfile.c_str())) {
-                       error << string_compose(_("Ardour: cannot read system configuration file \"%1\""), rcfile) << endmsg;
+               /* stupid XML Parser hates empty files */
+               
+               if (g_stat (rcfile.c_str(), &statbuf)) {
                        return -1;
                }
 
-               if (set_state (*tree.root())) {
-                       error << string_compose(_("Ardour: system configuration file \"%1\" not loaded successfully."), rcfile) << endmsg;
-                       return -1;
+               if (statbuf.st_size != 0) {
+                       cerr << string_compose (_("loading system configuration file %1"), rcfile) << endl;
+                       
+                       if (!tree.read (rcfile.c_str())) {
+                               error << string_compose(_("Ardour: cannot read system configuration file \"%1\""), rcfile) << endmsg;
+                               return -1;
+                       }
+                       
+                       current_owner = ConfigVariableBase::System;
+                       
+                       if (set_state (*tree.root())) {
+                               error << string_compose(_("Ardour: system configuration file \"%1\" not loaded successfully."), rcfile) << endmsg;
+                               return -1;
+                       }
+               } else {
+                       error << _("your system Ardour configuration file is empty. This probably means that there as an error installing Ardour") << endmsg;
                }
        }
 
-       /* from this point on, all configuration changes are user driven */
-
-       user_configuration = true;
-
        /* now load configuration file for user */
-       
-       rcfile = get_user_path ();
 
-       if (rcfile.length()) {
+       sys::path user_rc_file;
 
+       if (find_file_in_search_path (ardour_search_path() + user_config_directory(),
+                       "ardour.rc", user_rc_file))
+       {
                XMLTree tree;
+               
+               string rcfile = user_rc_file.to_string();
 
-               cerr << "Loading user configuration file " << rcfile << endl;
+               /* stupid XML parser hates empty files */
 
-               if (!tree.read (rcfile)) {
-                       error << string_compose(_("Ardour: cannot read configuration file \"%1\""), rcfile) << endmsg;
-                       return -1;
-               }
-               
-               
-               if (set_state (*tree.root())) {
-                       error << string_compose(_("Ardour: configuration file \"%1\" not loaded successfully."), rcfile) << endmsg;
+               if (g_stat (rcfile.c_str(), &statbuf)) {
                        return -1;
                }
+
+               if (statbuf.st_size != 0) {
+                       cerr << string_compose (_("loading user configuration file %1"), rcfile) << endl;
+                       
+                       if (!tree.read (rcfile)) {
+                               error << string_compose(_("Ardour: cannot read configuration file \"%1\""), rcfile) << endmsg;
+                               return -1;
+                       }
+                       
+                       current_owner = ConfigVariableBase::Config;
+                       
+                       if (set_state (*tree.root())) {
+                               error << string_compose(_("Ardour: user configuration file \"%1\" not loaded successfully."), rcfile) << endmsg;
+                               return -1;
+                       }
+               } else {
+                       warning << _("your Ardour configuration file is empty. This is not normal.") << endmsg;
+               }       
        }
 
+       if (!found)
+               error << "Ardour: could not find configuration file (ardour.rc), canvas will look broken." << endmsg;
+
        return 0;
 }
 
@@ -139,34 +167,27 @@ int
 Configuration::save_state()
 {
        XMLTree tree;
-       string rcfile;
-       char *envvar;
 
-       /* Note: this only writes the per-user file, and therefore
-          only saves variables marked as user-set or modified
-       */
-
-       if ((envvar = getenv ("ARDOUR_RC")) != 0) {
-               if (strlen (envvar) == 0) {
-                       return -1;
-               }
-               rcfile = envvar;
-       } else {
-
-               if ((envvar = getenv ("HOME")) == 0) {
-                       return -1;
-               }
-               if (strlen (envvar) == 0) {
-                       return -1;
-               }
-               rcfile = envvar;
-               rcfile += "/.ardour/ardour.rc";
+       try
+       {
+               sys::create_directories (user_config_directory ());
+       }
+       catch (const sys::filesystem_error& ex)
+       {
+               error << "Could not create user configuration directory" << endmsg;
+               return -1;
        }
+       
+       sys::path rcfile_path(user_config_directory());
+
+       rcfile_path /= "ardour.rc";
+       const string rcfile = rcfile_path.to_string();
 
+       // this test seems bogus?
        if (rcfile.length()) {
-               tree.set_root (&state (true));
+               tree.set_root (&get_state());
                if (!tree.write (rcfile.c_str())){
-                       error << _("Config file not saved") << endmsg;
+                       error << string_compose (_("Config file %1 not saved"), rcfile) << endmsg;
                        return -1;
                }
        }
@@ -174,146 +195,71 @@ Configuration::save_state()
        return 0;
 }
 
-XMLNode&
-Configuration::get_state ()
+void
+Configuration::add_instant_xml(XMLNode& node)
+{
+       Stateful::add_instant_xml (node, user_config_directory ());
+}
+
+XMLNode*
+Configuration::instant_xml(const string& node_name)
+{
+       return Stateful::instant_xml (node_name, user_config_directory ());
+}
+
+
+bool
+Configuration::save_config_options_predicate (ConfigVariableBase::Owner owner)
 {
-       return state (false);
+       /* only save things that were in the config file to start with */
+       return owner & ConfigVariableBase::Config;
 }
 
 XMLNode&
-Configuration::state (bool user_only)
+Configuration::get_state ()
 {
-       XMLNode* root = new XMLNode("Ardour");
+       XMLNode* root;
        LocaleGuard lg (X_("POSIX"));
 
-       typedef map<string, MidiPortDescriptor*>::const_iterator CI;
-       for(CI m = midi_ports.begin(); m != midi_ports.end(); ++m){
-               root->add_child_nocopy(m->second->get_state());
-       }
+       root = new XMLNode("Ardour");
 
-       XMLNode* node = new XMLNode("Config");
-       char buf[32];
+       MIDI::Manager::PortMap::const_iterator i;
+       const MIDI::Manager::PortMap& ports = MIDI::Manager::instance()->get_midi_ports();
        
-       if (!user_only || minimum_disk_io_bytes_is_user) {
-               snprintf(buf, sizeof(buf), "%" PRIu32 , minimum_disk_io_bytes);
-               node->add_child_nocopy(option_node("minimum-disk-io-bytes", string(buf)));
-       }
-       if (!user_only || track_buffer_seconds_is_user) {
-               snprintf(buf, sizeof(buf), "%f", track_buffer_seconds);
-               node->add_child_nocopy(option_node("track-buffer-seconds", string(buf)));
-       }
-       if (!user_only || disk_choice_space_threshold_is_user) {
-               snprintf(buf, sizeof(buf), "%" PRIu32, disk_choice_space_threshold);
-               node->add_child_nocopy(option_node("disk-choice-space-threshold", string(buf)));
-       }
-
-       if (!user_only || midi_feedback_interval_ms_is_user) {
-               snprintf(buf, sizeof(buf), "%" PRIu32, midi_feedback_interval_ms);
-               node->add_child_nocopy(option_node("midi-feedback-interval-ms", string(buf)));
-       }
-
-       if (!user_only || mute_affects_pre_fader_is_user) {
-               node->add_child_nocopy(option_node("mute-affects-pre-fader", mute_affects_pre_fader?"yes":"no"));
-       }
-       if (!user_only || mute_affects_post_fader_is_user) {
-               node->add_child_nocopy(option_node("mute-affects-post-fader", mute_affects_post_fader?"yes":"no"));
-       }
-       if (!user_only || mute_affects_control_outs_is_user) {
-               node->add_child_nocopy(option_node("mute-affects-control-outs", mute_affects_control_outs?"yes":"no"));
-       }
-       if (!user_only || mute_affects_main_outs_is_user) {
-               node->add_child_nocopy(option_node("mute-affects-main-outs", mute_affects_main_outs?"yes":"no"));
-       }
-       if (!user_only || solo_latch_is_user) {
-               node->add_child_nocopy(option_node("solo-latch", solo_latch?"yes":"no"));
-       }
-       if (!user_only || raid_path_is_user) {
-               node->add_child_nocopy(option_node("raid-path", orig_raid_path));
-       }
-       if (!user_only || mtc_port_name_is_user) {
-               node->add_child_nocopy(option_node("mtc-port", mtc_port_name));
-       }
-       if (!user_only || mmc_port_name_is_user) {
-               node->add_child_nocopy(option_node("mmc-port", mmc_port_name));
-       }
-       if (!user_only || midi_port_name_is_user) {
-               node->add_child_nocopy(option_node("midi-port", midi_port_name));
-       }
-       if (!user_only || use_hardware_monitoring_is_user) {
-               node->add_child_nocopy(option_node("hardware-monitoring", use_hardware_monitoring?"yes":"no"));
-       }
-       if (!user_only || be_jack_time_master_is_user) {
-               node->add_child_nocopy(option_node("jack-time-master", be_jack_time_master?"yes":"no"));
+       for (i = ports.begin(); i != ports.end(); ++i) {
+               root->add_child_nocopy(i->second->get_state());
        }
-       if (!user_only || native_format_is_bwf_is_user) {
-               node->add_child_nocopy(option_node("native-format-bwf", native_format_is_bwf?"yes":"no"));
-       }
-       if (!user_only || trace_midi_input_is_user) {
-               node->add_child_nocopy(option_node("trace-midi-input", trace_midi_input?"yes":"no"));
-       }
-       if (!user_only || trace_midi_output_is_user) {
-               node->add_child_nocopy(option_node("trace-midi-output", trace_midi_output?"yes":"no"));
-       }
-       if (!user_only || plugins_stop_with_transport_is_user) {
-               node->add_child_nocopy(option_node("plugins-stop-with-transport", plugins_stop_with_transport?"yes":"no"));
-       }
-       if (!user_only || use_sw_monitoring_is_user) {
-               node->add_child_nocopy(option_node("use-sw-monitoring", use_sw_monitoring?"yes":"no"));
-       }
-       if (!user_only || stop_recording_on_xrun_is_user) {
-               node->add_child_nocopy(option_node("stop-recording-on-xrun", stop_recording_on_xrun?"yes":"no"));
-       }
-       if (!user_only || verify_remove_last_capture_is_user) {
-               node->add_child_nocopy(option_node("verify-remove-last-capture", verify_remove_last_capture?"yes":"no"));
-       }
-       if (!user_only || stop_at_session_end_is_user) {
-               node->add_child_nocopy(option_node("stop-at-session-end", stop_at_session_end?"yes":"no"));
-       }
-       if (!user_only || seamless_looping_is_user) {
-               node->add_child_nocopy(option_node("seamless-loop", seamless_looping?"yes":"no"));
-       }
-       if (!user_only || auto_xfade_is_user) {
-               node->add_child_nocopy(option_node("auto-xfade", auto_xfade?"yes":"no"));
-       }
-       if (!user_only || no_new_session_dialog_is_user) {
-               node->add_child_nocopy(option_node("no-new-session-dialog", no_new_session_dialog?"yes":"no"));
-       }
-       if (!user_only || timecode_source_is_synced_is_user) {
-               node->add_child_nocopy(option_node("timecode-source-is-synced", timecode_source_is_synced?"yes":"no"));
-       }
-       if (!user_only || auditioner_output_left_is_user) {
-               node->add_child_nocopy(option_node("auditioner-left-out", auditioner_output_left));
-       }
-       if (!user_only || auditioner_output_right_is_user) {
-               node->add_child_nocopy(option_node("auditioner-right-out", auditioner_output_right));
-       }
-       if (!user_only || quieten_at_speed_is_user) {
-               snprintf (buf, sizeof (buf), "%f", speed_quietning);
-               node->add_child_nocopy(option_node("quieten-at-speed", buf));
-       }
-       if (!user_only || latched_record_enable_is_user) {
-               node->add_child_nocopy(option_node("latched-record-enable", latched_record_enable?"yes":"no"));
-       }
-       if (!user_only || tape_dir_is_user) {
-               if (!tape_dir.empty()) {
-                       node->add_child_nocopy(option_node("tape-dir", tape_dir));
-               }
+       
+       root->add_child_nocopy (get_variables (sigc::mem_fun (*this, &Configuration::save_config_options_predicate), "Config"));
+       
+       if (_extra_xml) {
+               root->add_child_copy (*_extra_xml);
        }
+       
+       root->add_child_nocopy (ControlProtocolManager::instance().get_state());
+       
+       return *root;
+}
 
-       /* use-vst is always per-user */
-       node->add_child_nocopy (option_node ("use-vst", use_vst?"yes":"no"));
-
-       root->add_child_nocopy (*node);
+XMLNode&
+Configuration::get_variables (sigc::slot<bool,ConfigVariableBase::Owner> predicate, std::string which_node)
+{
+       XMLNode* node;
+       LocaleGuard lg (X_("POSIX"));
 
-       if (key_node) {
-               root->add_child_copy (*key_node);
-       }
+       node = new XMLNode(which_node);
 
-       if (_extra_xml) {
-               root->add_child_copy (*_extra_xml);
-       }
+#undef  CONFIG_VARIABLE
+#undef  CONFIG_VARIABLE_SPECIAL        
+#define CONFIG_VARIABLE(type,var,Name,value) \
+         if (node->name() == "Config") { if (predicate (var.owner())) { var.add_to_node (*node); }}
+#define CONFIG_VARIABLE_SPECIAL(type,var,Name,value,mutator) \
+         if (node->name() == "Config") { if (predicate (var.owner())) { var.add_to_node (*node); }}
+#include "ardour/configuration_vars.h"
+#undef  CONFIG_VARIABLE
+#undef  CONFIG_VARIABLE_SPECIAL        
 
-       return *root;
+       return *node;
 }
 
 int
@@ -326,7 +272,6 @@ Configuration::set_state (const XMLNode& root)
        XMLNodeList nlist = root.children();
        XMLNodeConstIterator niter;
        XMLNode *node;
-       XMLProperty *prop;
 
        for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
 
@@ -335,10 +280,13 @@ Configuration::set_state (const XMLNode& root)
                if (node->name() == "MIDI-port") {
 
                        try {
-                               pair<string,MidiPortDescriptor*> newpair;
-                               newpair.second = new MidiPortDescriptor (*node);
-                               newpair.first = newpair.second->tag;
-                               midi_ports.insert (newpair);
+
+                               MIDI::Port::Descriptor desc (*node);
+                               map<string,XMLNode>::iterator x;
+                               if ((x = midi_ports.find (desc.tag)) != midi_ports.end()) {
+                                       midi_ports.erase (x);
+                               }
+                               midi_ports.insert (pair<string,XMLNode>(desc.tag,*node));
                        }
 
                        catch (failed_constructor& err) {
@@ -347,828 +295,78 @@ Configuration::set_state (const XMLNode& root)
 
                } else if (node->name() == "Config") {
                        
-                       XMLNodeList option_list = node->children();
-                       XMLNodeConstIterator option_iter;
-                       XMLNode *option_node;
-
-                       string option_name;
-                       string option_value;
-
-                       for (option_iter = option_list.begin(); option_iter != option_list.end(); ++option_iter) {
-
-                               option_node = *option_iter;
-
-                               if (option_node->name() != "Option") {
-                                       continue;
-                               }
-
-                               if ((prop = option_node->property ("name")) != 0) {
-                                       option_name = prop->value();
-                               } else {
-                                       throw failed_constructor ();
-                               }
-                               
-                               if ((prop = option_node->property ("value")) != 0) {
-                                       option_value = prop->value();
-                               } else {
-                                       throw failed_constructor ();
-                               }
-                               
-                               if (option_name == "minimum-disk-io-bytes") {
-                                       set_minimum_disk_io (atoi (option_value.c_str()));
-                               } else if (option_name == "track-buffer-seconds") {
-                                       set_track_buffer (atof (option_value.c_str()));
-                               } else if (option_name == "raid-path") {
-                                       set_raid_path (option_value);
-                               } else if (option_name == "hiding-groups-deactivates-groups") {
-                                       set_hiding_groups_deactivates_groups (option_value == "yes");
-                               } else if (option_name == "mute-affects-pre-fader") {
-                                       set_mute_affects_pre_fader (option_value == "yes");
-                               } else if (option_name == "mute-affects-post-fader") {
-                                       set_mute_affects_post_fader (option_value == "yes");
-                               } else if (option_name == "mute-affects-control-outs") {
-                                       set_mute_affects_control_outs (option_value == "yes");
-                               } else if (option_name == "mute-affects-main-outs") {
-                                       set_mute_affects_main_outs (option_value == "yes");
-                               } else if (option_name == "solo-latch") {
-                                       set_solo_latch (option_value == "yes");
-                               } else if (option_name == "mtc-port") {
-                                       set_mtc_port_name (option_value);
-                               } else if (option_name == "mmc-port") {
-                                       set_mmc_port_name (option_value);
-                               } else if (option_name == "midi-port") {
-                                       set_midi_port_name (option_value);
-                               } else if (option_name == "hardware-monitoring") {
-                                       set_use_hardware_monitoring (option_value == "yes");
-                               } else if (option_name == "jack-time-master") {
-                                       set_jack_time_master (option_value == "yes");
-                               } else if (option_name == "trace-midi-input") {
-                                       set_trace_midi_input (option_value == "yes");
-                               } else if (option_name == "trace-midi-output") {
-                                       set_trace_midi_output (option_value == "yes");
-                               } else if (option_name == "plugins-stop-with-transport") {
-                                       set_plugins_stop_with_transport (option_value == "yes");
-                               } else if (option_name == "use-sw-monitoring") {
-                                       set_use_sw_monitoring (option_value == "yes");
-                               } else if (option_name == "no-sw-monitoring") {     /* DEPRECATED */
-                                       set_use_sw_monitoring (option_value != "yes");
-                               } else if (option_name == "stop-recording-on-xrun") {
-                                       set_stop_recording_on_xrun (option_value == "yes");
-                               } else if (option_name == "verify-remove-last-capture") {
-                                       set_verify_remove_last_capture (option_value == "yes");
-                               } else if (option_name == "stop-at-session-end") {
-                                       set_stop_at_session_end (option_value == "yes");
-                               } else if (option_name == "seamless-loop") {
-                                       set_seamless_looping (option_value == "yes");
-                               } else if (option_name == "auto-xfade") {
-                                       set_auto_xfade (option_value == "yes");
-                               } else if (option_name == "no-new-session-dialog") {
-                                       set_no_new_session_dialog (option_value == "yes");
-                               } else if (option_name == "timecode-source-is-synced") {
-                                       set_timecode_source_is_synced (option_value == "yes");
-                               } else if (option_name == "auditioner-left-out") {
-                                       set_auditioner_output_left (option_value);
-                               } else if (option_name == "auditioner-right-out") {
-                                       set_auditioner_output_right (option_value);
-                               } else if (option_name == "use-vst") {
-                                       set_use_vst (option_value == "yes");
-                               } else if (option_name == "quieten-at-speed") {
-                                       float v;
-                                       if (sscanf (option_value.c_str(), "%f", &v) == 1) {
-                                               set_quieten_at_speed (v);
-                                       }
-                               } else if (option_name == "midi-feedback-interval-ms") {
-                                       set_midi_feedback_interval_ms (atoi (option_value.c_str()));
-                               } else if (option_name == "latched-record-enable") {
-                                       set_latched_record_enable (option_value == "yes");
-                               } else if (option_name == "tape-dir") {
-                                       set_tape_dir (option_value);
-                               }
-                       }
+                       set_variables (*node, ConfigVariableBase::Config);
                        
-               } else if (node->name() == "Keys") {
-                       /* defer handling of this for UI objects */
-                       key_node = new XMLNode (*node);
                } else if (node->name() == "extra") {
                        _extra_xml = new XMLNode (*node);
+
+               } else if (node->name() == ControlProtocolManager::state_node_name) {
+                       _control_protocol_state = new XMLNode (*node);
                }
        }
 
-       DiskStream::set_disk_io_chunk_frames (minimum_disk_io_bytes / sizeof (Sample));
+       Diskstream::set_disk_io_chunk_frames (minimum_disk_io_bytes.get() / sizeof (Sample));
 
        return 0;
 }
 
 void
-Configuration::set_defaults ()
-{
-       raid_path = "";
-       orig_raid_path = raid_path;
-
-       mtc_port_name = N_("default");
-       mmc_port_name = N_("default");
-       midi_port_name = N_("default");
-#ifdef __APPLE__
-       auditioner_output_left = N_("coreaudio:Built-in Audio:in1");
-       auditioner_output_right = N_("coreaudio:Built-in Audio:in2");
-#else
-       auditioner_output_left = N_("alsa_pcm:playback_1");
-       auditioner_output_right = N_("alsa_pcm:playback_2");
-#endif
-       minimum_disk_io_bytes = 1024 * 256;
-       track_buffer_seconds = 5.0;
-       hiding_groups_deactivates_groups = true;
-       mute_affects_pre_fader = 1;
-       mute_affects_post_fader = 1;
-       mute_affects_control_outs = 1;
-       mute_affects_main_outs = 1;
-       solo_latch = 1;
-       use_hardware_monitoring = true;
-       be_jack_time_master = true;
-       native_format_is_bwf = true;
-       trace_midi_input = false;
-       trace_midi_output = false;
-       plugins_stop_with_transport = false;
-       use_sw_monitoring = true;
-       stop_recording_on_xrun = false;
-       verify_remove_last_capture = true;
-       stop_at_session_end = true;
-       seamless_looping = true;
-       auto_xfade = true;
-       no_new_session_dialog = false;
-       timecode_source_is_synced = true;
-       use_vst = true; /* if we build with VST_SUPPORT, otherwise no effect */
-       quieten_at_speed = true;
-       tape_dir = "";
-
-       midi_feedback_interval_ms = 100;
-       
-       // this is about 5 minutes at 48kHz, 4 bytes/sample
-       disk_choice_space_threshold = 57600000;
-
-       /* at this point, no variables from from the user */
-
-       raid_path_is_user = false;
-       minimum_disk_io_bytes_is_user = false;
-       track_buffer_seconds_is_user = false;
-       hiding_groups_deactivates_groups_is_user = false;
-       auditioner_output_left_is_user = false;
-       auditioner_output_right_is_user = false;
-       mute_affects_pre_fader_is_user = false;
-       mute_affects_post_fader_is_user = false;
-       mute_affects_control_outs_is_user = false;
-       mute_affects_main_outs_is_user = false;
-       solo_latch_is_user = false;
-       disk_choice_space_threshold_is_user = false;
-       mtc_port_name_is_user = false;
-       mmc_port_name_is_user = false;
-       midi_port_name_is_user = false;
-       use_hardware_monitoring_is_user = false;
-       be_jack_time_master_is_user = false;
-       native_format_is_bwf_is_user = false;
-       trace_midi_input_is_user = false;
-       trace_midi_output_is_user = false;
-       plugins_stop_with_transport_is_user = false;
-       use_sw_monitoring_is_user = false;
-       stop_recording_on_xrun_is_user = false;
-       verify_remove_last_capture_is_user = false;
-       stop_at_session_end_is_user = false;
-       seamless_looping_is_user = false;
-       auto_xfade_is_user = false;
-       no_new_session_dialog_is_user = false;
-       timecode_source_is_synced_is_user = false;
-       quieten_at_speed_is_user = false;
-       midi_feedback_interval_ms_is_user = false;
-       latched_record_enable_is_user = false;
-       tape_dir_is_user = false;
-}
-
-Configuration::MidiPortDescriptor::MidiPortDescriptor (const XMLNode& node)
-{
-       const XMLProperty *prop;
-       bool have_tag = false;
-       bool have_device = false;
-       bool have_type = false;
-       bool have_mode = false;
-
-       if ((prop = node.property ("tag")) != 0) {
-               tag = prop->value();
-               have_tag = true;
-       }
-
-       if ((prop = node.property ("device")) != 0) {
-               device = prop->value();
-               have_device = true;
-       }
-
-       if ((prop = node.property ("type")) != 0) {
-               type = prop->value();
-               have_type = true;
-       }
-
-       if ((prop = node.property ("mode")) != 0) {
-               mode = prop->value();
-               have_mode = true;
-       }
-
-       if (!have_tag || !have_device || !have_type || !have_mode) {
-               throw failed_constructor();
-       }
-}
-
-XMLNode&
-Configuration::MidiPortDescriptor::get_state()
-{
-       XMLNode* root = new XMLNode("MIDI-port");
-
-       root->add_property("tag", tag);
-       root->add_property("device", device);
-       root->add_property("type", type);
-       root->add_property("mode", mode);
-
-       return *root;
-}
-
-XMLNode&
-Configuration::option_node(const string & name, const string & value)
-{
-       XMLNode* root = new XMLNode("Option");
-
-       root->add_property("name", name);
-       root->add_property("value", value);
-       
-       return *root;
-}
-
-string
-Configuration::get_raid_path()
-{
-       return raid_path;
-}
-
-void
-Configuration::set_raid_path(string path)
-{
-#ifdef HAVE_WORDEXP
-       /* Handle tilde and environment variable expansion in session path */
-       wordexp_t expansion;
-       switch (wordexp (path.c_str(), &expansion, WRDE_NOCMD|WRDE_UNDEF)) {
-       case 0:
-               break;
-       default:
-               error << _("illegal or badly-formed string used for RAID path") << endmsg;
-               return;
-       }
-
-       if (expansion.we_wordc > 1) {
-               error << _("RAID search path is ambiguous") << endmsg;
-               return;
-       }
-
-       raid_path = expansion.we_wordv[0];
-       orig_raid_path = path;
-       wordfree (&expansion);
-#else
-       raid_path = orig_raid_path = path;
-#endif
-
-       if (user_configuration) {
-               raid_path_is_user = true;
-       }
-}
-
-uint32_t
-Configuration::get_minimum_disk_io()
-{
-       return minimum_disk_io_bytes;
-}
+Configuration::set_variables (const XMLNode& node, ConfigVariableBase::Owner owner)
+{
+#undef  CONFIG_VARIABLE
+#undef  CONFIG_VARIABLE_SPECIAL        
+#define CONFIG_VARIABLE(type,var,name,value) \
+         if (var.set_from_node (node, owner)) { \
+                ParameterChanged (name); \
+        }
+#define CONFIG_VARIABLE_SPECIAL(type,var,name,value,mutator) \
+         if (var.set_from_node (node, owner)) { \
+                ParameterChanged (name); \
+        }
+
+#include "ardour/configuration_vars.h"
+#undef  CONFIG_VARIABLE
+#undef  CONFIG_VARIABLE_SPECIAL
        
-void
-Configuration::set_minimum_disk_io(uint32_t min)
-{
-       minimum_disk_io_bytes = min;
-       if (user_configuration) {
-               minimum_disk_io_bytes_is_user = true;
-       }
-}
-
-float
-Configuration::get_track_buffer()
-{
-       return track_buffer_seconds;
-}
-
-void 
-Configuration::set_track_buffer(float buffer)
-{
-       track_buffer_seconds = buffer;
-       if (user_configuration) {
-               track_buffer_seconds_is_user = true;
-       }
-}
-
-bool 
-Configuration::does_hiding_groups_deactivates_groups()
-{
-       return hiding_groups_deactivates_groups;
-}
-
-void 
-Configuration::set_hiding_groups_deactivates_groups(bool hiding)
-{
-       hiding_groups_deactivates_groups = hiding;
-       if (user_configuration) {
-               hiding_groups_deactivates_groups_is_user = true;
-       }
-}
-
-string
-Configuration::get_auditioner_output_left ()
-{
-       return auditioner_output_left;
-}
-
-void
-Configuration::set_auditioner_output_left (string str)
-{
-       auditioner_output_left = str;
-       if (user_configuration) {
-               auditioner_output_left_is_user = true;
-       }
-}
-
-string
-Configuration::get_auditioner_output_right ()
-{
-       return auditioner_output_right;
-}
-
-void
-Configuration::set_auditioner_output_right (string str)
-{
-       auditioner_output_right = str;
-       if (user_configuration) {
-               auditioner_output_right_is_user = true;
-       }
-}
-
-bool
-Configuration::get_mute_affects_pre_fader()
-{
-       return mute_affects_pre_fader;
-}
-
-void 
-Configuration::set_mute_affects_pre_fader (bool affects)
-{
-       mute_affects_pre_fader = affects;
-       if (user_configuration) {
-               mute_affects_pre_fader_is_user = true;
-       }
-}
-
-bool 
-Configuration::get_mute_affects_post_fader()
-{
-       return mute_affects_post_fader;
-}
-
-void 
-Configuration::set_mute_affects_post_fader (bool affects)
-{
-       mute_affects_post_fader = affects;
-       if (user_configuration) {
-               mute_affects_post_fader_is_user = true;
-       }
-}
-
-bool 
-Configuration::get_mute_affects_control_outs()
-{
-       return mute_affects_control_outs;
-}
-
-void 
-Configuration::set_mute_affects_control_outs (bool affects)
-{
-       mute_affects_control_outs = affects;
-       if (user_configuration) {
-               mute_affects_control_outs_is_user = true;
-       }
-}
-
-bool 
-Configuration::get_mute_affects_main_outs()
-{
-       return mute_affects_main_outs;
-}
-
-void 
-Configuration::set_mute_affects_main_outs (bool affects)
-{
-       mute_affects_main_outs = affects;
-       if (user_configuration) {
-               mute_affects_main_outs_is_user = true;
-       }
-}
-
-bool 
-Configuration::get_solo_latch()
-{
-       return solo_latch;
-}
-
-void 
-Configuration::set_solo_latch (bool latch)
-{
-       solo_latch = latch;
-       if (user_configuration) {
-               solo_latch_is_user = true;
-       }
-}
-
-XMLNode *
-Configuration::get_keys () const
-{
-       return key_node;
-}
-
-void
-Configuration::set_keys (XMLNode* keys)
-{
-       key_node = keys;
-}
-
-uint32_t
-Configuration::get_disk_choice_space_threshold ()
-{
-       return disk_choice_space_threshold;
-}
-
-void
-Configuration::set_disk_choice_space_threshold (uint32_t val)
-{
-       disk_choice_space_threshold = val;
-       if (user_configuration) {
-               disk_choice_space_threshold_is_user = true;
-       }
-}
-
-string
-Configuration::get_mmc_port_name ()
-{
-       return mmc_port_name;
-}
-
-void
-Configuration::set_mmc_port_name (string name)
-{
-       mmc_port_name = name;
-       if (user_configuration) {
-               mmc_port_name_is_user = true;
-       }
-}
-
-string
-Configuration::get_mtc_port_name ()
-{
-       return mtc_port_name;
-}
-
-void
-Configuration::set_mtc_port_name (string name)
-{
-       mtc_port_name = name;
-       if (user_configuration) {
-               mtc_port_name_is_user = true;
-       }
-}
-
-string
-Configuration::get_midi_port_name ()
-{
-       return midi_port_name;
-}
-
-void
-Configuration::set_midi_port_name (string name)
-{
-       midi_port_name = name;
-       if (user_configuration) {
-               midi_port_name_is_user = true;
-       }
-}
-
-uint32_t
-Configuration::get_midi_feedback_interval_ms ()
-{
-       return midi_feedback_interval_ms;
-}
-
-void
-Configuration::set_midi_feedback_interval_ms (uint32_t val)
-{
-       midi_feedback_interval_ms = val;
-       if (user_configuration) {
-               midi_feedback_interval_ms_is_user = true;
-       }
-}
-
-bool
-Configuration::get_use_hardware_monitoring()
-{
-       return use_hardware_monitoring;
-}
-
-void
-Configuration::set_use_hardware_monitoring(bool yn)
-{
-       use_hardware_monitoring = yn;
-       if (user_configuration) {
-               use_hardware_monitoring_is_user = true;
-       }
-}
-
-bool
-Configuration::get_jack_time_master()
-{
-       return be_jack_time_master;
-}
-
-void
-Configuration::set_jack_time_master(bool yn)
-{
-       be_jack_time_master = yn;
-       if (user_configuration) {
-               be_jack_time_master_is_user = true;
-       }
-}
-
-bool
-Configuration::get_native_format_is_bwf()
-{
-       return native_format_is_bwf;
-}
-
-void
-Configuration::set_native_format_is_bwf(bool yn)
-{
-       native_format_is_bwf = yn;
-       if (user_configuration) {
-               native_format_is_bwf_is_user = true;
-       }
-}
-
-bool
-Configuration::get_trace_midi_input ()
-{
-       return trace_midi_input;
-}
-
-void
-Configuration::set_trace_midi_input (bool yn)
-{
-       trace_midi_input = yn;
-       if (user_configuration) {
-               trace_midi_input_is_user = true;
-       }
-}
-
-bool
-Configuration::get_trace_midi_output ()
-{
-       return trace_midi_output;
-}
-
-void
-Configuration::set_trace_midi_output (bool yn)
-{
-       trace_midi_output = yn;
-       if (user_configuration) {
-               trace_midi_output_is_user = true;
-       }
-}
-
-bool
-Configuration::get_plugins_stop_with_transport ()
-{
-       return plugins_stop_with_transport;
-}
-
-void
-Configuration::set_plugins_stop_with_transport (bool yn)
-{
-       plugins_stop_with_transport = yn;
-       if (user_configuration) {
-               plugins_stop_with_transport_is_user = true;
-       }
-}
-
-bool
-Configuration::get_use_sw_monitoring ()
-{
-       return use_sw_monitoring;
-}
-
-void
-Configuration::set_use_sw_monitoring (bool yn)
-{
-       use_sw_monitoring = yn;
-       if (user_configuration) {
-               use_sw_monitoring_is_user = true;
-       }
-}
-
-bool
-Configuration::get_stop_recording_on_xrun ()
-{
-       return stop_recording_on_xrun;
-}
-
-void
-Configuration::set_stop_recording_on_xrun (bool yn)
-{
-       stop_recording_on_xrun = yn;
-       if (user_configuration) {
-               stop_recording_on_xrun_is_user = true;
-       }
-}
-
-bool
-Configuration::get_verify_remove_last_capture ()
-{
-       return verify_remove_last_capture;
-}
-
-void
-Configuration::set_verify_remove_last_capture (bool yn)
-{
-       verify_remove_last_capture = yn;
-       if (user_configuration) {
-               verify_remove_last_capture_is_user = true;
-       }
-}
-
-bool
-Configuration::get_stop_at_session_end ()
-{
-       return stop_at_session_end;
-}
-
-void
-Configuration::set_stop_at_session_end (bool yn)
-{
-       stop_at_session_end = yn;
-       if (user_configuration) {
-               stop_at_session_end_is_user = true;
-       }
-}
-
-bool
-Configuration::get_seamless_looping ()
-{
-       return seamless_looping;
 }
-
 void
-Configuration::set_seamless_looping (bool yn)
+Configuration::map_parameters (sigc::slot<void,const char*> theSlot)
 {
-       seamless_looping = yn;
-       if (user_configuration) {
-               seamless_looping_is_user = true;
-       }
+#undef  CONFIG_VARIABLE
+#undef  CONFIG_VARIABLE_SPECIAL        
+#define CONFIG_VARIABLE(type,var,name,value)                 theSlot (name);
+#define CONFIG_VARIABLE_SPECIAL(type,var,name,value,mutator) theSlot (name);
+#include "ardour/configuration_vars.h"
+#undef  CONFIG_VARIABLE
+#undef  CONFIG_VARIABLE_SPECIAL        
 }
 
-bool
-Configuration::get_auto_xfade ()
-{
-       return auto_xfade;
-}
+bool ConfigVariableBase::show_stores = false;
 
 void
-Configuration::set_auto_xfade (bool yn)
-{
-       auto_xfade = yn;
-       if (user_configuration) {
-               auto_xfade_is_user = true;
-       }
-}
-
-string
-Configuration::get_user_ardour_path ()
-{
-       string path;
-       char* envvar;
-       
-       if ((envvar = getenv ("HOME")) == 0 || strlen (envvar) == 0) {
-               return "/";
-       }
-               
-       path = envvar;
-       path += "/.ardour/";
-       
-       return path;
-}
-
-string
-Configuration::get_system_ardour_path ()
-{
-       string path;
-       char* envvar;
-
-       if ((envvar = getenv ("ARDOUR_DATA_PATH")) != 0) {
-               path += envvar;
-               if (path[path.length()-1] != ':') {
-                       path += ':';
-               }
-       }
-
-       path += DATA_DIR;
-       path += "/ardour/";
-       
-       return path;
-}
-
-bool 
-Configuration::get_no_new_session_dialog()
+ConfigVariableBase::set_show_stored_values (bool yn)
 {
-       return no_new_session_dialog;
-}
-
-void 
-Configuration::set_no_new_session_dialog(bool yn)
-{
-       no_new_session_dialog = yn;
-       if (user_configuration) {
-               no_new_session_dialog_is_user = true;
-       }
-}
-
-bool
-Configuration::get_timecode_source_is_synced()
-{
-       return timecode_source_is_synced;
+       show_stores = yn;
 }
 
 void
-Configuration::set_timecode_source_is_synced (bool yn)
+ConfigVariableBase::show_stored_value (const string& str)
 {
-       timecode_source_is_synced = yn;
-       if (user_configuration) {
-               timecode_source_is_synced_is_user = true;
+       if (show_stores) {
+               cerr << "Config variable " << _name << " stored as " << str << endl;
        }
 }
 
-bool
-Configuration::get_use_vst ()
-{
-       return use_vst;
-}
-
 void
-Configuration::set_use_vst (bool yn)
-{
-       use_vst = yn;
-}
-
-gain_t
-Configuration::get_quieten_at_speed()
+ConfigVariableBase::notify ()
 {
-       return speed_quietning;
+       // placeholder for any debugging desired when a config variable is modified
 }
 
 void
-Configuration::set_quieten_at_speed (float gain_coefficient)
+ConfigVariableBase::miss ()
 {
-       speed_quietning = gain_coefficient;
-       if (user_configuration) {
-               quieten_at_speed_is_user = true;
-       }
+       // placeholder for any debugging desired when a config variable 
+       // is set but to the same value as it already has
 }
 
-void
-Configuration::set_latched_record_enable (bool yn)
-{
-       latched_record_enable = yn;
-       if (user_configuration) {
-               latched_record_enable_is_user = true;
-       }
-}
-
-bool
-Configuration::get_latched_record_enable ()
-{
-       return latched_record_enable;
-}
-
-string
-Configuration::get_tape_dir () 
-{
-       return tape_dir;
-}
-
-void
-Configuration::set_tape_dir (string path)
-{
-       tape_dir = path;
-}