refactor MIDISceneChange color property addition by moving it into SceneChange to...
[ardour.git] / libs / ardour / configuration.cc
index 61d288ab51d1af1fcc751b8c7e38e31179f731fd..d5ca426a74d3c8cf9d3493f0c4e6f3bcdc3481c3 100644 (file)
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 1999 Paul Davis 
+    Copyright (C) 1999-2009 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 */
+#include <iostream>
 
-#ifdef HAVE_WORDEXP
-#include <wordexp.h>
-#endif
+#include "pbd/compose.h"
 
-#include <pbd/failed_constructor.h>
-#include <pbd/xml++.h>
-
-#include <ardour/ardour.h>
-#include <ardour/configuration.h>
-#include <ardour/diskstream.h>
-
-#include "i18n.h"
+#include "ardour/configuration.h"
+#include "ardour/debug.h"
 
 using namespace ARDOUR;
 using namespace std;
-
-/* this is global so that we do not have to indirect through an object pointer
-   to reference it.
-*/
-
-namespace ARDOUR {
-    float speed_quietning = 0.251189; // -12dB reduction for ffwd or rewind
-}
+using namespace PBD;
 
 Configuration::Configuration ()
 {
-       key_node = 0;
-       user_configuration = false;
-       set_defaults ();
 }
 
 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()
-{
-       char* envvar;
-
-       if ((envvar = getenv ("ARDOUR_SYSTEM_RC")) != 0) {
-               return envvar;
-       }
-
-       return find_config_file ("ardour_system.rc");
-}
-
-int
-Configuration::load_state ()
-{
-       string rcfile;
-       
-       /* load system configuration first */
-
-       rcfile = get_system_path ();
-
-       if (rcfile.length()) {
-
-               XMLTree tree;
-
-               cerr << "Loading system configuration file " << rcfile << endl;
-
-               if (!tree.read (rcfile.c_str())) {
-                       error << string_compose(_("Ardour: cannot read system configuration file \"%1\""), rcfile) << endmsg;
-                       return -1;
-               }
-
-               if (set_state (*tree.root())) {
-                       error << string_compose(_("Ardour: system configuration file \"%1\" not loaded successfully."), rcfile) << endmsg;
-                       return -1;
-               }
-       }
-
-       /* 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()) {
-
-               XMLTree tree;
-
-               cerr << "Loading user configuration file " << rcfile << endl;
-
-               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;
-                       return -1;
-               }
-       }
-
-       return 0;
-}
-
-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";
-       }
-
-       if (rcfile.length()) {
-               tree.set_root (&state (true));
-               if (!tree.write (rcfile.c_str())){
-                       error << _("Config file not saved") << endmsg;
-                       return -1;
-               }
-       }
-
-       return 0;
-}
-
-XMLNode&
-Configuration::get_state ()
-{
-       return state (false);
-}
 
-XMLNode&
-Configuration::state (bool user_only)
+void
+ConfigVariableBase::add_to_node (XMLNode& node)
 {
-       XMLNode* root = new XMLNode("Ardour");
-       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());
-       }
-
-       XMLNode* node = new XMLNode("Config");
-       char buf[32];
-       
-       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"));
-       }
-       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"));
-       }
-
-       /* use-vst is always per-user */
-       node->add_child_nocopy (option_node ("use-vst", use_vst?"yes":"no"));
-
-       root->add_child_nocopy (*node);
-
-       if (key_node) {
-               root->add_child_copy (*key_node);
-       }
-
-       if (_extra_xml) {
-               root->add_child_copy (*_extra_xml);
-       }
-
-       return *root;
+       const std::string v = get_as_string ();
+       DEBUG_TRACE (DEBUG::Configuration, string_compose ("Config variable %1 stored as [%2]\n", _name, v));
+       XMLNode* child = new XMLNode ("Option");
+       child->add_property ("name", _name);
+       child->add_property ("value", v);
+       node.add_child_nocopy (*child);
 }
 
-int
-Configuration::set_state (const XMLNode& root)
+bool
+ConfigVariableBase::set_from_node (XMLNode const & node)
 {
-       if (root.name() != "Ardour") {
-               return -1;
-       }
-
-       XMLNodeList nlist = root.children();
-       XMLNodeConstIterator niter;
-       XMLNode *node;
-       XMLProperty *prop;
-
-       for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
-
-               node = *niter;
+       if (node.name() == "Config" || node.name() == "Canvas" || node.name() == "UI") {
 
-               if (node->name() == "MIDI-port") {
+               /* ardour.rc */
 
-                       try {
-                               pair<string,MidiPortDescriptor*> newpair;
-                               newpair.second = new MidiPortDescriptor (*node);
-                               newpair.first = newpair.second->tag;
-                               midi_ports.insert (newpair);
-                       }
-
-                       catch (failed_constructor& err) {
-                               warning << _("ill-formed MIDI port specification in ardour rcfile (ignored)") << endmsg;
-                       }
-
-               } else if (node->name() == "Config") {
-                       
-                       XMLNodeList option_list = node->children();
-                       XMLNodeConstIterator option_iter;
-                       XMLNode *option_node;
+               const XMLProperty* prop;
+               XMLNodeList nlist;
+               XMLNodeConstIterator niter;
+               XMLNode* child;
 
-                       string option_name;
-                       string option_value;
+               nlist = node.children();
 
-                       for (option_iter = option_list.begin(); option_iter != option_list.end(); ++option_iter) {
+               for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
 
-                               option_node = *option_iter;
+                       child = *niter;
 
-                               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);
+                       if (child->name() == "Option") {
+                               if ((prop = child->property ("name")) != 0) {
+                                       if (prop->value() == _name) {
+                                               if ((prop = child->property ("value")) != 0) {
+                                                       set_from_string (prop->value());
+                                                       return true;
+                                               }
                                        }
-                               } 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 (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);
                }
-       }
-
-       DiskStream::set_disk_io_chunk_frames (minimum_disk_io_bytes / 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;
-
-       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;
-}
-
-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;
-}
-       
-void
-Configuration::set_minimum_disk_io(uint32_t min)
-{
-       minimum_disk_io_bytes = min;
-       if (user_configuration) {
-               minimum_disk_io_bytes_is_user = true;
-       }
-}
+       } else if (node.name() == "Options") {
 
-float
-Configuration::get_track_buffer()
-{
-       return track_buffer_seconds;
-}
+               /* session file */
 
-void 
-Configuration::set_track_buffer(float buffer)
-{
-       track_buffer_seconds = buffer;
-       if (user_configuration) {
-               track_buffer_seconds_is_user = true;
-       }
-}
+               XMLNodeList olist;
+               XMLNodeConstIterator oiter;
+               XMLNode* option;
+               const XMLProperty* opt_prop;
 
-bool 
-Configuration::does_hiding_groups_deactivates_groups()
-{
-       return hiding_groups_deactivates_groups;
-}
+               olist = node.children();
 
-void 
-Configuration::set_hiding_groups_deactivates_groups(bool hiding)
-{
-       hiding_groups_deactivates_groups = hiding;
-       if (user_configuration) {
-               hiding_groups_deactivates_groups_is_user = true;
-       }
-}
+               for (oiter = olist.begin(); oiter != olist.end(); ++oiter) {
 
-string
-Configuration::get_auditioner_output_left ()
-{
-       return auditioner_output_left;
-}
+                       option = *oiter;
 
-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)
-{
-       seamless_looping = yn;
-       if (user_configuration) {
-               seamless_looping_is_user = true;
-       }
-}
-
-bool
-Configuration::get_auto_xfade ()
-{
-       return auto_xfade;
-}
-
-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 += ':';
+                       if (option->name() == _name) {
+                               if ((opt_prop = option->property ("val")) != 0) {
+                                       set_from_string (opt_prop->value());
+                                       return true;
+                               }
+                       }
                }
        }
 
-       path += DATA_DIR;
-       path += "/ardour/";
-       
-       return path;
-}
-
-bool 
-Configuration::get_no_new_session_dialog()
-{
-       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;
-}
-
-void
-Configuration::set_timecode_source_is_synced (bool yn)
-{
-       timecode_source_is_synced = yn;
-       if (user_configuration) {
-               timecode_source_is_synced_is_user = true;
-       }
-}
-
-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()
-{
-       return speed_quietning;
+       return false;
 }
 
 void
-Configuration::set_quieten_at_speed (float gain_coefficient)
+ConfigVariableBase::notify ()
 {
-       speed_quietning = gain_coefficient;
-       if (user_configuration) {
-               quieten_at_speed_is_user = true;
-       }
+       // placeholder for any debugging desired when a config variable is modified
 }
 
 void
-Configuration::set_latched_record_enable (bool yn)
+ConfigVariableBase::miss ()
 {
-       latched_record_enable = yn;
-       if (user_configuration) {
-               latched_record_enable_is_user = true;
-       }
+       // placeholder for any debugging desired when a config variable
+       // is set but to the same value as it already has
 }
 
-bool
-Configuration::get_latched_record_enable ()
-{
-       return latched_record_enable;
-}