Remove unnecessary 0 checks before delete; see http://www.parashift.com/c++-faq-lite...
[ardour.git] / gtk2_ardour / route_ui.cc
index 34d7e995d6ed0191c14728c8444b3f78a54ec396..cefe2ac517e4c84b72c860ef8021de5e735f4a47 100644 (file)
@@ -15,7 +15,6 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id$
 */
 
 #include <gtkmm2ext/gtk_ui.h>
 #include <gtkmm2ext/choice.h>
 #include <gtkmm2ext/doi.h>
 #include <gtkmm2ext/bindable_button.h>
+#include <gtkmm2ext/barcontroller.h>
+#include <gtkmm2ext/gtk_ui.h>
 
 #include <ardour/route_group.h>
+#include <pbd/memento_command.h>
+#include <pbd/stacktrace.h>
+#include <pbd/shiva.h>
+#include <pbd/controllable.h>
 
 #include "route_ui.h"
 #include "keyboard.h"
 #include "utils.h"
 #include "prompter.h"
 #include "gui_thread.h"
+#include "ardour_dialog.h"
+#include "latency_gui.h"
+#include "automation_time_axis.h"
 
 #include <ardour/route.h>
+#include <ardour/session.h>
+#include <ardour/audioengine.h>
 #include <ardour/audio_track.h>
 #include <ardour/audio_diskstream.h>
 #include <ardour/midi_track.h>
 #include <ardour/midi_diskstream.h>
+#include <ardour/profile.h>
 
 #include "i18n.h"
 using namespace sigc;
@@ -45,14 +56,33 @@ using namespace Gtkmm2ext;
 using namespace ARDOUR;
 using namespace PBD;
 
+RouteUI::RouteUI (ARDOUR::Session& sess, const char* mute_name, const char* solo_name, const char* rec_name)
+       : AxisView(sess)
+{
+       init ();
+       set_button_names (mute_name, solo_name, rec_name);
+}
+
+RouteUI::RouteUI (boost::shared_ptr<ARDOUR::Route> rt, 
+                 ARDOUR::Session& sess, const char* mute_name, const char* solo_name, const char* rec_name)
+       : AxisView(sess)
+{
+       init ();
+       set_button_names (mute_name, solo_name, rec_name);
+       set_route (rt);
+}
+
+RouteUI::~RouteUI()
+{
+       GoingAway (); /* EMIT SIGNAL */
+
+       delete solo_menu;
+       delete mute_menu;
+       delete remote_control_menu;
+}
 
-RouteUI::RouteUI (ARDOUR::Route& rt, ARDOUR::Session& sess, const char* m_name,
-                 const char* s_name, const char* r_name)
-    : AxisView(sess),
-         _route(rt),
-         mute_button(0),
-         solo_button(0),
-         rec_enable_button(0)
+void
+RouteUI::init ()
 {
        xml_node = 0;
        mute_menu = 0;
@@ -61,47 +91,124 @@ RouteUI::RouteUI (ARDOUR::Route& rt, ARDOUR::Session& sess, const char* m_name,
        ignore_toggle = false;
        wait_for_release = false;
        route_active_menu_item = 0;
+       was_solo_safe = false;
+       polarity_menu_item = 0;
+       denormal_menu_item = 0;
+       multiple_mute_change = false;
+       multiple_solo_change = false;
+
+       mute_button = manage (new BindableToggleButton (""));
+       mute_button->set_self_managed (true);
+       mute_button->set_name ("MuteButton");
+       UI::instance()->set_tip (mute_button, _("Mute this track"), "");
+
+       solo_button = manage (new BindableToggleButton (""));
+       solo_button->set_self_managed (true);
+       solo_button->set_name ("SoloButton");
+       UI::instance()->set_tip (solo_button, _("Mute other (non-soloed) tracks"), "");
+
+       rec_enable_button = manage (new BindableToggleButton (""));
+       rec_enable_button->set_name ("RecordEnableButton");
+       rec_enable_button->set_self_managed (true);
+       UI::instance()->set_tip (rec_enable_button, _("Enable recording on this track"), "");
+
+       _session.SoloChanged.connect (mem_fun(*this, &RouteUI::solo_changed_so_update_mute));
+}
+
+void
+RouteUI::reset ()
+{
+       connections.clear ();
+
+       delete solo_menu;
+       solo_menu = 0;
+
+       delete mute_menu;
+       mute_menu = 0;
+       
+       if (xml_node) {
+               /* do not delete the node - its owned by the route */
+               xml_node = 0;
+       }
+
+       route_active_menu_item = 0;
+       polarity_menu_item = 0;
+       denormal_menu_item = 0;
+}
+
+void
+RouteUI::set_button_names (const char* mute, const char* solo, const char* rec)
+{
+       m_name = mute;
+       s_name = solo;
+       r_name = rec;
+}
+
+void
+RouteUI::set_route (boost::shared_ptr<Route> rp)
+{
+       reset ();
+
+       _route = rp;
 
        if (set_color_from_route()) {
                set_color (unique_random_color());
        }
 
-       _route.GoingAway.connect (mem_fun (*this, &RouteUI::route_removed));
-       _route.active_changed.connect (mem_fun (*this, &RouteUI::route_active_changed));
+       /* no, there is no memory leak here. This object cleans itself (and other stuff)
+          up when the route is destroyed.
+       */
 
-        mute_button = manage (new BindableToggleButton (_route.mute_control(), m_name ));
-        solo_button = manage (new BindableToggleButton (_route.solo_control(), s_name ));
+       new PairedShiva<Route,RouteUI> (*_route, *this);
+  
+       mute_button->set_controllable (_route->mute_control());
+       mute_button->set_label (m_name);
        
-       if (is_audio_track()) {
-               AudioTrack* at = dynamic_cast<AudioTrack*>(&_route);
+       solo_button->set_controllable (_route->solo_control());
+       solo_button->set_label (s_name);
+  
+       connections.push_back (_route->active_changed.connect (mem_fun (*this, &RouteUI::route_active_changed)));
+       connections.push_back (_route->mute_changed.connect (mem_fun(*this, &RouteUI::mute_changed)));
+       connections.push_back (_route->solo_changed.connect (mem_fun(*this, &RouteUI::solo_changed)));
+       connections.push_back (_route->solo_safe_changed.connect (mem_fun(*this, &RouteUI::solo_changed)));
+  
+       /* when solo changes, update mute state too, in case the user wants us to display it */
 
-               get_diskstream()->record_enable_changed.connect (mem_fun (*this, &RouteUI::route_rec_enable_changed));
+       _session.SoloChanged.connect (mem_fun(*this, &RouteUI::solo_changed_so_update_mute));
+       
+       if (is_track()) {
+               boost::shared_ptr<Track> t = boost::dynamic_pointer_cast<Track>(_route);
 
-               _session.RecordStateChanged.connect (mem_fun (*this, &RouteUI::session_rec_enable_changed));
+               connections.push_back (t->diskstream()->RecordEnableChanged.connect (mem_fun (*this, &RouteUI::route_rec_enable_changed)));
+               connections.push_back (_session.RecordStateChanged.connect (mem_fun (*this, &RouteUI::session_rec_enable_changed)));
 
-               rec_enable_button = manage (new BindableToggleButton (at->rec_enable_control(), r_name ));
+               rec_enable_button->show();
+               rec_enable_button->set_controllable (t->rec_enable_control());
+               rec_enable_button->set_label (r_name);
 
-               rec_enable_button->unset_flags (Gtk::CAN_FOCUS);
-               
                update_rec_display ();
        } 
-       
+
        mute_button->unset_flags (Gtk::CAN_FOCUS);
        solo_button->unset_flags (Gtk::CAN_FOCUS);
+       
+       mute_button->show();
+       solo_button->show();
+
+       connections.push_back (_route->RemoteControlIDChanged.connect (mem_fun(*this, &RouteUI::refresh_remote_control_menu)));
 
        /* map the current state */
 
        map_frozen ();
 }
 
-RouteUI::~RouteUI()
-{
-       delete mute_menu;
-}
-
-gint
+bool
 RouteUI::mute_press(GdkEventButton* ev)
 {
+       if (ev->type == GDK_2BUTTON_PRESS || ev->type == GDK_3BUTTON_PRESS ) {
+               return true;
+       }
+       multiple_mute_change = false;
        if (!ignore_toggle) {
 
                if (Keyboard::is_context_menu_event (ev)) {
@@ -110,46 +217,53 @@ RouteUI::mute_press(GdkEventButton* ev)
                                build_mute_menu();
                        }
 
-                       mute_menu->popup(0,0);
+                       mute_menu->popup(0,ev->time);
 
                } else {
 
-                       if (ev->button == 2) {
-                               // ctrl-button2 click is the midi binding click
+                       if (Keyboard::is_button2_event (ev)) {
+                               // Primary-button2 click is the midi binding click
                                // button2-click is "momentary"
                                
-                               if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::Control))) {
+                               if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier))) {
                                        wait_for_release = true;
+                               } else {
+                                       return false;
                                }
                        }
 
-                       if (ev->button == 1 || ev->button == 2) {
+                       if (ev->button == 1 || Keyboard::is_button2_event (ev)) {
 
-                               if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::Control|Keyboard::Shift))) {
+                               if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {
 
-                                       /* ctrl-shift-click applies change to all routes */
+                                       /* Primary-Tertiary-click applies change to all routes */
 
                                        _session.begin_reversible_command (_("mute change"));
-                                       _session.add_undo (_session.global_mute_memento(this));
-                                       _session.set_all_mute (!_route.muted());
-                                       _session.add_redo_no_execute (_session.global_mute_memento(this));
+                                        Session::GlobalMuteStateCommand *cmd = new Session::GlobalMuteStateCommand(_session, this);
+                                       _session.set_all_mute (!_route->muted());
+                                        cmd->mark();
+                                       _session.add_command(cmd);
                                        _session.commit_reversible_command ();
+                                       multiple_mute_change = true;
 
-                               } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
+                               } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 
-                                       /* ctrl-click applies change to the mix group.
-                                          ctrl-button2 is MIDI learn.
+                                       /* Primary-button1 applies change to the mix group.
+                                          NOTE: Primary-button2 is MIDI learn.
                                        */
 
                                        if (ev->button == 1) {
-                                               set_mix_group_mute (_route, !_route.muted());
+                                               set_mix_group_mute (_route, !_route->muted());
                                        }
                                        
                                } else {
 
                                        /* plain click applies change to this route */
-
-                                       reversibly_apply_route_boolean ("mute change", &Route::set_mute, !_route.muted(), this);
+                                       if (wait_for_release) {
+                                               _route->set_mute (!_route->muted(), this);
+                                       } else {
+                                               reversibly_apply_route_boolean ("mute change", &Route::set_mute, !_route->muted(), this);
+                                       }
                                }
                        }
                }
@@ -159,90 +273,130 @@ RouteUI::mute_press(GdkEventButton* ev)
        return true;
 }
 
-gint
+bool
 RouteUI::mute_release(GdkEventButton* ev)
 {
        if (!ignore_toggle) {
                if (wait_for_release){
                        wait_for_release = false;
-                       // undo the last op
-                       // because the press was the last undoable thing we did
-                       _session.undo (1U);
+                       if (multiple_mute_change) {
+                               multiple_mute_change = false;
+                               // undo the last op
+                               // because the press was the last undoable thing we did
+                               _session.undo (1U);
+                       } else {
+                               _route->set_mute (!_route->muted(), this);
+                       }
                }
        }
        return true;
 }
 
-gint
+bool
 RouteUI::solo_press(GdkEventButton* ev)
 {
+       /* ignore double/triple clicks */
+
+       if (ev->type == GDK_2BUTTON_PRESS || ev->type == GDK_3BUTTON_PRESS ) {
+               return true;
+       }
+       multiple_solo_change = false;
        if (!ignore_toggle) {
 
                if (Keyboard::is_context_menu_event (ev)) {
-                       
+
                        if (solo_menu == 0) {
                                build_solo_menu ();
                        }
 
-                       solo_menu->popup (1, 0);
+                       solo_menu->popup (1, ev->time);
 
                } else {
 
-                       if (ev->button == 2) {
+                       if (Keyboard::is_button2_event (ev)) {
 
-                               // ctrl-button2 click is the midi binding click
+                               // Primary-button2 click is the midi binding click
                                // button2-click is "momentary"
                                
-                               if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::Control))) {
+                               if (!Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier))) {
                                        wait_for_release = true;
+                               } else {
+                                       return false;
                                }
                        }
 
-                       if (ev->button == 1 || ev->button == 2) {
-
-                               if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::Control|Keyboard::Shift))) {
+                       if (ev->button == 1 || Keyboard::is_button2_event (ev)) {
 
-                                       /* ctrl-shift-click applies change to all routes */
+                               if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {
 
+                                       /* Primary-Tertiary-click applies change to all routes */
+                                       bool was_not_latched = false;
+                                       if (!Config->get_solo_latched ()) {
+                                               was_not_latched = true;
+                                               /*
+                                                 XXX it makes no sense to solo all tracks if we're 
+                                                 not in latched mode, but doing nothing feels like a bug, 
+                                                 so do it anyway 
+                                               */
+                                               Config->set_solo_latched (true);
+                                       }
                                        _session.begin_reversible_command (_("solo change"));
-                                       _session.add_undo (_session.global_solo_memento(this));
-                                       _session.set_all_solo (!_route.soloed());
-                                       _session.add_redo_no_execute (_session.global_solo_memento(this));
+                                        Session::GlobalSoloStateCommand *cmd = new Session::GlobalSoloStateCommand(_session, this);
+                                       _session.set_all_solo (!_route->soloed());
+                                        cmd->mark();
+                                       _session.add_command (cmd);
                                        _session.commit_reversible_command ();
+                                       multiple_solo_change = true;
+                                       if (was_not_latched) {
+                                               Config->set_solo_latched (false);
+                                       }
                                        
-                               } else if (Keyboard::modifier_state_contains (ev->state, Keyboard::ModifierMask (Keyboard::Control|Keyboard::Alt))) {
+                               } else if (Keyboard::modifier_state_contains (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::SecondaryModifier))) {
 
-                                       // ctrl-alt-click: exclusively solo this track, not a toggle */
+                                       // Primary-Secondary-click: exclusively solo this track, not a toggle */
 
                                        _session.begin_reversible_command (_("solo change"));
-                                       _session.add_undo (_session.global_solo_memento(this));
+                                        Session::GlobalSoloStateCommand *cmd = new Session::GlobalSoloStateCommand (_session, this);
                                        _session.set_all_solo (false);
-                                       _route.set_solo (true, this);
-                                       _session.add_redo_no_execute (_session.global_solo_memento(this));
+                                       _route->set_solo (true, this);
+                                        cmd->mark();
+                                       _session.add_command(cmd);
                                        _session.commit_reversible_command ();
 
-                               } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::Shift)) {
+                               } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
 
                                        // shift-click: set this route to solo safe
 
-                                       _route.set_solo_safe (!_route.solo_safe(), this);
-                                       wait_for_release = false;
+                                       if (Profile->get_sae() && ev->button == 1) {
+                                               // button 1 and shift-click: disables solo_latched for this click
+                                               if (!Config->get_solo_latched ()) {
+                                                       Config->set_solo_latched (true);
+                                                       reversibly_apply_route_boolean ("solo change", &Route::set_solo, !_route->soloed(), this);
+                                                       Config->set_solo_latched (false);
+                                               }
+                                       } else {
+                                               _route->set_solo_safe (!_route->solo_safe(), this);
+                                               wait_for_release = false;
+                                       }
 
-                               } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
+                               } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 
-                                       /* ctrl-click: solo mix group.
-                                          ctrl-button2 is MIDI learn.
+                                       /* Primary-button1: solo mix group.
+                                          NOTE: Primary-button2 is MIDI learn.
                                        */
 
                                        if (ev->button == 1) {
-                                               set_mix_group_solo (_route, !_route.soloed());
+                                               set_mix_group_solo (_route, !_route->soloed());
                                        }
 
                                } else {
 
                                        /* click: solo this route */
-
-                                       reversibly_apply_route_boolean ("solo change", &Route::set_solo, !_route.soloed(), this);
+                                       if (wait_for_release) {
+                                               _route->set_solo (!_route->soloed(), this);
+                                       } else {
+                                               reversibly_apply_route_boolean ("solo change", &Route::set_solo, !_route->soloed(), this);
+                                       }
                                }
                        }
                }
@@ -251,34 +405,52 @@ RouteUI::solo_press(GdkEventButton* ev)
        return true;
 }
 
-gint
+bool
 RouteUI::solo_release(GdkEventButton* ev)
 {
        if (!ignore_toggle) {
                if (wait_for_release) {
                        wait_for_release = false;
-                       // undo the last op
-                       // because the press was the last undoable thing we did
-
-                       _session.undo (1U);
+                       if (multiple_solo_change) {
+                               multiple_solo_change = false;
+                               // undo the last op
+                               // because the press was the last undoable thing we did
+                               _session.undo (1U);
+                       } else {
+                               // we don't use "undo the last op"
+                               // here because its expensive for the GUI
+                               _route->set_solo (!_route->soloed(), this);
+                       }
                }
        }
 
        return true;
 }
 
-gint
+bool
 RouteUI::rec_enable_press(GdkEventButton* ev)
 {
-       if (!ignore_toggle && is_audio_track() && rec_enable_button) {
+       if (ev->type == GDK_2BUTTON_PRESS || ev->type == GDK_3BUTTON_PRESS ) {
+               return true;
+       }
+
+       if (!_session.engine().connected()) {
+               MessageDialog msg (_("Not connected to JACK - cannot engage record"));
+               msg.run ();
+               return true;
+       }
+
+       if (!ignore_toggle && is_track() && rec_enable_button) {
+
+               if (Keyboard::is_button2_event (ev) && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 
-               if (ev->button == 2 && Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
                        // do nothing on midi bind event
-               }
-               else if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::Control|Keyboard::Shift))) {
+                       return false;
+
+               } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {
 
                        _session.begin_reversible_command (_("rec-enable change"));
-                       _session.add_undo (_session.global_record_enable_memento(this));
+                        Session::GlobalRecordEnableStateCommand *cmd = new Session::GlobalRecordEnableStateCommand(_session, this);
 
                        if (rec_enable_button->get_active()) {
                                _session.record_disenable_all ();
@@ -286,31 +458,37 @@ RouteUI::rec_enable_press(GdkEventButton* ev)
                                _session.record_enable_all ();
                        }
 
-                       _session.add_redo_no_execute (_session.global_record_enable_memento(this));
+                        cmd->mark();
+                       _session.add_command(cmd);
                        _session.commit_reversible_command ();
 
-               } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
+               } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 
-                       set_mix_group_rec_enable (_route, !_route.record_enabled());
+                       /* Primary-button1 applies change to the mix group.
+                          NOTE: Primary-button2 is MIDI learn.
+                       */
 
-               } else {
+                       set_mix_group_rec_enable (_route, !_route->record_enabled());
 
-                       reversibly_apply_audio_track_boolean ("rec-enable change", &AudioTrack::set_record_enable, !audio_track()->record_enabled(), this);
+               } else {
 
-                       ignore_toggle = true;
-                       rec_enable_button->set_active(audio_track()->record_enabled());
-                       ignore_toggle = false;
+                       reversibly_apply_track_boolean ("rec-enable change", &Track::set_record_enable, !track()->record_enabled(), this);
                }
-               
-               stop_signal (*rec_enable_button, "button-press-event");
        }
 
-       return TRUE;
+       return true;
+}
+
+bool
+RouteUI::rec_enable_release (GdkEventButton* ev)
+{
+       return true;
 }
 
 void
 RouteUI::solo_changed(void* src)
 {
+
        Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &RouteUI::update_solo_display));
 }
 
@@ -318,22 +496,30 @@ void
 RouteUI::update_solo_display ()
 {
        bool x;
-
-       if (solo_button->get_active() != (x = _route.soloed())){
+       vector<Gdk::Color> fg_colors;
+       Gdk::Color c;
+       
+       if (solo_button->get_active() != (x = _route->soloed())){
                ignore_toggle = true;
                solo_button->set_active(x);
                ignore_toggle = false;
-       }
+       } 
        
-       /* show solo safe */
-
-       if (_route.solo_safe()){
-               solo_button->set_name(safe_solo_button_name());
+       if (_route->solo_safe()) {
+               solo_button->set_visual_state (2);
+       } else if (_route->soloed()) {
+               solo_button->set_visual_state (1);
        } else {
-               solo_button->set_name(solo_button_name());
+               solo_button->set_visual_state (0);
        }
 }
 
+void
+RouteUI::solo_changed_so_update_mute ()
+{
+       Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &RouteUI::update_mute_display));
+}
+
 void
 RouteUI::mute_changed(void* src)
 {
@@ -343,17 +529,42 @@ RouteUI::mute_changed(void* src)
 void
 RouteUI::update_mute_display ()
 {
-       bool x;
+       bool model = _route->muted();
+       bool view = mute_button->get_active();
 
-       if (mute_button->get_active() != (x = _route.muted())){
+       /* first make sure the button's "depressed" visual
+          is correct.
+       */
+
+       if (model != view) {
                ignore_toggle = true;
-               mute_button->set_active(x);
+               mute_button->set_active (model);
                ignore_toggle = false;
        }
+
+       /* now attend to visual state */
+       
+       if (Config->get_show_solo_mutes()) {
+               if (_route->muted()) {
+                       mute_button->set_visual_state (2);
+               } else if (!_route->soloed() && _route->solo_muted()) {
+                       
+                       mute_button->set_visual_state (1);
+               } else {
+                       mute_button->set_visual_state (0);
+               }
+       } else {
+               if (_route->muted()) {
+                       mute_button->set_visual_state (2);
+               } else {
+                       mute_button->set_visual_state (0);
+               }
+       }
+
 }
 
 void
-RouteUI::route_rec_enable_changed (void *src)
+RouteUI::route_rec_enable_changed ()
 {
        Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &RouteUI::update_rec_display));
 }
@@ -367,60 +578,63 @@ RouteUI::session_rec_enable_changed ()
 void
 RouteUI::update_rec_display ()
 {
-       bool model = _route.record_enabled();
+       bool model = _route->record_enabled();
        bool view = rec_enable_button->get_active();
 
        /* first make sure the button's "depressed" visual
           is correct.
        */
-       
+
        if (model != view) {
                ignore_toggle = true;
                rec_enable_button->set_active (model);
                ignore_toggle = false;
        }
-
+       
        /* now make sure its color state is correct */
 
        if (model) {
 
                switch (_session.record_status ()) {
+               case Session::Recording:
+                       rec_enable_button->set_visual_state (1);
+                       break;
+
                case Session::Disabled:
                case Session::Enabled:
-                       if (rec_enable_button->get_state() != Gtk::STATE_ACTIVE) {
-                               rec_enable_button->set_state (Gtk::STATE_ACTIVE);
-                       }
+                       rec_enable_button->set_visual_state (2);
                        break;
 
-               case Session::Recording:
-                       if (rec_enable_button->get_state() != Gtk::STATE_SELECTED) {
-                               rec_enable_button->set_state (Gtk::STATE_SELECTED);
-                       }
-                       break;
                }
 
        } else {
-               if (rec_enable_button->get_state() != Gtk::STATE_NORMAL) {
-                       rec_enable_button->set_state (Gtk::STATE_NORMAL);
-               }
+               rec_enable_button->set_visual_state (0);
        }
 }
 
 void
 RouteUI::build_remote_control_menu ()
 {
-       remote_control_menu = manage (new Menu);
+       remote_control_menu = new Menu;
        refresh_remote_control_menu ();
 }
 
 void
 RouteUI::refresh_remote_control_menu ()
 {
+       ENSURE_GUI_THREAD (mem_fun (*this, &RouteUI::refresh_remote_control_menu));
+
+       // only refresh the menu if it has been instantiated
+
+       if (remote_control_menu == 0) {
+               return;
+       }
+
        using namespace Menu_Helpers;
 
        RadioMenuItem::Group rc_group;
        CheckMenuItem* rc_active;
-       uint32_t limit = _session.ntracks();
+       uint32_t limit = _session.ntracks() + _session.nbusses();
        char buf[32];
 
        MenuList& rc_items = remote_control_menu->items();
@@ -433,7 +647,7 @@ RouteUI::refresh_remote_control_menu ()
        limit += 4; /* leave some breathing room */
        
        rc_items.push_back (RadioMenuElem (rc_group, _("None")));
-       if (_route.remote_control_id() == 0) {
+       if (_route->remote_control_id() == 0) {
                rc_active = dynamic_cast<CheckMenuItem*> (&rc_items.back());
                rc_active->set_active ();
        }
@@ -442,7 +656,7 @@ RouteUI::refresh_remote_control_menu ()
                snprintf (buf, sizeof (buf), "%u", i);
                rc_items.push_back (RadioMenuElem (rc_group, buf));
                rc_active = dynamic_cast<RadioMenuItem*>(&rc_items.back());
-               if (_route.remote_control_id() == i) {
+               if (_route->remote_control_id() == i) {
                        rc_active = dynamic_cast<CheckMenuItem*> (&rc_items.back());
                        rc_active->set_active ();
                }
@@ -460,7 +674,7 @@ RouteUI::set_remote_control_id (uint32_t id, CheckMenuItem* item)
        */
 
        if (item->get_active()) {
-               _route.set_remote_control_id (id);
+               _route->set_remote_control_id (id);
        }
 }
 
@@ -475,13 +689,13 @@ RouteUI::build_solo_menu (void)
        CheckMenuItem* check;
 
        check = new CheckMenuItem(_("Solo-safe"));
-       check->set_active (_route.solo_safe());
+       check->set_active (_route->solo_safe());
        check->signal_toggled().connect (bind (mem_fun (*this, &RouteUI::toggle_solo_safe), check));
-       _route.solo_safe_changed.connect(bind (mem_fun (*this, &RouteUI::solo_safe_toggle), check));
+       _route->solo_safe_changed.connect(bind (mem_fun (*this, &RouteUI::solo_safe_toggle), check));
        items.push_back (CheckMenuElem(*check));
        check->show_all();
 
-       items.push_back (SeparatorElem());
+       //items.push_back (SeparatorElem());
        // items.push_back (MenuElem (_("MIDI Bind"), mem_fun (*mute_button, &BindableToggleButton::midi_learn)));
        
 }
@@ -499,39 +713,39 @@ RouteUI::build_mute_menu(void)
        check = new CheckMenuItem(_("Pre Fader"));
        init_mute_menu(PRE_FADER, check);
        check->signal_toggled().connect(bind (mem_fun (*this, &RouteUI::toggle_mute_menu), PRE_FADER, check));
-       _route.pre_fader_changed.connect(bind (mem_fun (*this, &RouteUI::pre_fader_toggle), check));
+       _route->pre_fader_changed.connect(bind (mem_fun (*this, &RouteUI::pre_fader_toggle), check));
        items.push_back (CheckMenuElem(*check));
        check->show_all();
 
        check = new CheckMenuItem(_("Post Fader"));
        init_mute_menu(POST_FADER, check);
        check->signal_toggled().connect(bind (mem_fun (*this, &RouteUI::toggle_mute_menu), POST_FADER, check));
-       _route.post_fader_changed.connect(bind (mem_fun (*this, &RouteUI::post_fader_toggle), check));
+       _route->post_fader_changed.connect(bind (mem_fun (*this, &RouteUI::post_fader_toggle), check));
        items.push_back (CheckMenuElem(*check));
        check->show_all();
        
        check = new CheckMenuItem(_("Control Outs"));
        init_mute_menu(CONTROL_OUTS, check);
        check->signal_toggled().connect(bind (mem_fun (*this, &RouteUI::toggle_mute_menu), CONTROL_OUTS, check));
-       _route.control_outs_changed.connect(bind (mem_fun (*this, &RouteUI::control_outs_toggle), check));
+       _route->control_outs_changed.connect(bind (mem_fun (*this, &RouteUI::control_outs_toggle), check));
        items.push_back (CheckMenuElem(*check));
        check->show_all();
 
        check = new CheckMenuItem(_("Main Outs"));
        init_mute_menu(MAIN_OUTS, check);
        check->signal_toggled().connect(bind (mem_fun (*this, &RouteUI::toggle_mute_menu), MAIN_OUTS, check));
-       _route.main_outs_changed.connect(bind (mem_fun (*this, &RouteUI::main_outs_toggle), check));
+       _route->main_outs_changed.connect(bind (mem_fun (*this, &RouteUI::main_outs_toggle), check));
        items.push_back (CheckMenuElem(*check));
        check->show_all();
 
-       items.push_back (SeparatorElem());
+       //items.push_back (SeparatorElem());
        // items.push_back (MenuElem (_("MIDI Bind"), mem_fun (*mute_button, &BindableToggleButton::midi_learn)));
 }
 
 void
 RouteUI::init_mute_menu(mute_type type, CheckMenuItem* check)
 {
-       if (_route.get_mute_config (type)) {
+       if (_route->get_mute_config (type)) {
                check->set_active (true);
        }
 }
@@ -539,28 +753,29 @@ RouteUI::init_mute_menu(mute_type type, CheckMenuItem* check)
 void
 RouteUI::toggle_mute_menu(mute_type type, Gtk::CheckMenuItem* check)
 {
-       _route.set_mute_config(type, check->get_active(), this);
+       _route->set_mute_config(type, check->get_active(), this);
 }
 
 void
 RouteUI::toggle_solo_safe (Gtk::CheckMenuItem* check)
 {
-       _route.set_solo_safe (check->get_active(), this);
+       _route->set_solo_safe (check->get_active(), this);
 }
 
 void
-RouteUI::set_mix_group_solo(Route& route, bool yn)
+RouteUI::set_mix_group_solo(boost::shared_ptr<Route> route, bool yn)
 {
        RouteGroup* mix_group;
 
-       if((mix_group = route.mix_group()) != 0){
+       if((mix_group = route->mix_group()) != 0){
                _session.begin_reversible_command (_("mix group solo  change"));
-               _session.add_undo (_session.global_solo_memento (this));
+                Session::GlobalSoloStateCommand *cmd = new Session::GlobalSoloStateCommand(_session, this);
                mix_group->apply(&Route::set_solo, yn, this);
-               _session.add_redo_no_execute (_session.global_solo_memento(this));
+                cmd->mark();
+               _session.add_command (cmd);
                _session.commit_reversible_command ();
        } else {
-               reversibly_apply_route_boolean ("solo change", &Route::set_solo, !route.soloed(), this);
+               reversibly_apply_route_boolean ("solo change", &Route::set_solo, !route->soloed(), this);
        }
 }
 
@@ -568,49 +783,55 @@ void
 RouteUI::reversibly_apply_route_boolean (string name, void (Route::*func)(bool, void *), bool yn, void *arg)
 {
        _session.begin_reversible_command (name);
-       _session.add_undo (bind (mem_fun (_route, func), !yn, (void *) arg));
-       _session.add_redo (bind (mem_fun (_route, func), yn, (void *) arg));
+       XMLNode &before = _route->get_state();
+       bind(mem_fun(*_route, func), yn, arg)();
+       XMLNode &after = _route->get_state();
+       _session.add_command (new MementoCommand<Route>(*_route, &before, &after));
        _session.commit_reversible_command ();
 }
 
 void
-RouteUI::reversibly_apply_audio_track_boolean (string name, void (AudioTrack::*func)(bool, void *), bool yn, void *arg)
+RouteUI::reversibly_apply_track_boolean (string name, void (Track::*func)(bool, void *), bool yn, void *arg)
 {
        _session.begin_reversible_command (name);
-       _session.add_undo (bind (mem_fun (*audio_track(), func), !yn, (void *) arg));
-       _session.add_redo (bind (mem_fun (*audio_track(), func), yn, (void *) arg));
+       XMLNode &before = track()->get_state();
+       bind (mem_fun (*track(), func), yn, arg)();
+       XMLNode &after = track()->get_state();
+       _session.add_command (new MementoCommand<Track>(*track(), &before, &after));
        _session.commit_reversible_command ();
 }
 
 void
-RouteUI::set_mix_group_mute(Route& route, bool yn)
+RouteUI::set_mix_group_mute(boost::shared_ptr<Route> route, bool yn)
 {
        RouteGroup* mix_group;
 
-       if((mix_group = route.mix_group()) != 0){
+       if((mix_group = route->mix_group()) != 0){
                _session.begin_reversible_command (_("mix group mute change"));
-               _session.add_undo (_session.global_mute_memento (this));
+                Session::GlobalMuteStateCommand *cmd = new Session::GlobalMuteStateCommand (_session, this);
                mix_group->apply(&Route::set_mute, yn, this);
-               _session.add_redo_no_execute (_session.global_mute_memento(this));
+                cmd->mark();
+               _session.add_command(cmd);
                _session.commit_reversible_command ();
        } else {
-               reversibly_apply_route_boolean ("mute change", &Route::set_mute, !route.muted(), this);
+               reversibly_apply_route_boolean ("mute change", &Route::set_mute, !route->muted(), this);
        }
 }
 
 void
-RouteUI::set_mix_group_rec_enable(Route& route, bool yn)
+RouteUI::set_mix_group_rec_enable(boost::shared_ptr<Route> route, bool yn)
 {
        RouteGroup* mix_group;
 
-       if((mix_group = route.mix_group()) != 0){
+       if((mix_group = route->mix_group()) != 0){
                _session.begin_reversible_command (_("mix group rec-enable change"));
-               _session.add_undo (_session.global_record_enable_memento (this));
+                Session::GlobalRecordEnableStateCommand *cmd = new Session::GlobalRecordEnableStateCommand(_session, this);
                mix_group->apply (&Route::set_record_enable, yn, this);
-               _session.add_redo_no_execute (_session.global_record_enable_memento(this));
+                cmd->mark();
+               _session.add_command(cmd);
                _session.commit_reversible_command ();
        } else {
-               reversibly_apply_route_boolean ("rec-enable change", &Route::set_record_enable, !_route.record_enabled(), this);
+               reversibly_apply_route_boolean ("rec-enable change", &Route::set_record_enable, !_route->record_enabled(), this);
        }
 }
 
@@ -641,7 +862,7 @@ RouteUI::set_color (const Gdk::Color & c)
        snprintf (buf, sizeof (buf), "%d:%d:%d", c.get_red(), c.get_green(), c.get_blue());
        xml_node->add_property ("color", buf);
 
-        _route.gui_changed ("color", (void *) 0); /* EMIT_SIGNAL */
+       _route->gui_changed ("color", (void *) 0); /* EMIT_SIGNAL */
 }
 
 
@@ -649,26 +870,36 @@ void
 RouteUI::ensure_xml_node ()
 {
        if (xml_node == 0) {
-               if ((xml_node = _route.extra_xml ("GUI")) == 0) {
+               if ((xml_node = _route->extra_xml ("GUI")) == 0) {
                        xml_node = new XMLNode ("GUI");
-                       _route.add_extra_xml (*xml_node);
+                       _route->add_extra_xml (*xml_node);
                }
        }
 }
 
 XMLNode*
-RouteUI::get_child_xml_node (const string & childname)
+RouteUI::get_automation_child_xml_node (Evoral::Parameter param)
 {
-       XMLNode* child;
-
        ensure_xml_node ();
        
-       
-       if ((child = find_named_node (*xml_node, childname)) == 0) {
-               child = new XMLNode (childname);
-               xml_node->add_child_nocopy (*child);
+       XMLNodeList kids = xml_node->children();
+       XMLNodeConstIterator iter;
+
+       const string sym = ARDOUR::EventTypeMap::instance().to_symbol(param);
+
+       for (iter = kids.begin(); iter != kids.end(); ++iter) {
+               if ((*iter)->name() == AutomationTimeAxisView::state_node_name) {
+                       XMLProperty* type = (*iter)->property("automation-id");
+                       if (type && type->value() == sym)
+                               return *iter;
+               }
        }
 
+       // Didn't find it, make a new one
+       XMLNode* child = new XMLNode (AutomationTimeAxisView::state_node_name);
+       child->add_property("automation-id", sym);
+       xml_node->add_child_nocopy (*child);
+
        return child;
 }
 
@@ -696,10 +927,10 @@ RouteUI::remove_this_route ()
        vector<string> choices;
        string prompt;
 
-       if (is_audio_track()) {
-               prompt  = string_compose (_("Do you really want to remove track \"%1\" ?\n\nYou may also lose the playlist used by this track.\n(cannot be undone)"), _route.name());
+       if (is_track()) {
+               prompt  = string_compose (_("Do you really want to remove track \"%1\" ?\n\nYou may also lose the playlist used by this track.\n(cannot be undone)"), _route->name());
        } else {
-               prompt  = string_compose (_("Do you really want to remove bus \"%1\" ?\n(cannot be undone)"), _route.name());
+               prompt  = string_compose (_("Do you really want to remove bus \"%1\" ?\n(cannot be undone)"), _route->name());
        }
 
        choices.push_back (_("No, do nothing."));
@@ -716,15 +947,7 @@ gint
 RouteUI::idle_remove_this_route (RouteUI *rui)
 {
        rui->_session.remove_route (rui->_route);
-       return FALSE;
-}
-
-void
-RouteUI::route_removed ()
-{
-       ENSURE_GUI_THREAD(mem_fun (*this, &RouteUI::route_removed));
-       
-       delete this;
+       return false;
 }
 
 void
@@ -733,7 +956,7 @@ RouteUI::route_rename ()
        ArdourPrompter name_prompter (true);
        string result;
        name_prompter.set_prompt (_("New Name: "));
-       name_prompter.set_initial_text (_route.name());
+       name_prompter.set_initial_text (_route->name());
        name_prompter.add_button (_("Rename"), Gtk::RESPONSE_ACCEPT);
        name_prompter.set_response_sensitive (Gtk::RESPONSE_ACCEPT, false);
        name_prompter.show_all ();
@@ -743,7 +966,7 @@ RouteUI::route_rename ()
        case Gtk::RESPONSE_ACCEPT:
         name_prompter.get_result (result);
         if (result.length()) {
-                       _route.set_name (result, this);
+                       _route->set_name (result);
                }       
                break;
        }
@@ -753,11 +976,11 @@ RouteUI::route_rename ()
 }
 
 void
-RouteUI::name_changed (void *src)
+RouteUI::name_changed ()
 {
-       ENSURE_GUI_THREAD(bind (mem_fun (*this, &RouteUI::name_changed), src));
+       ENSURE_GUI_THREAD(sigc::mem_fun(*this, &RouteUI::name_changed));
 
-       name_label.set_text (_route.name());
+       name_label.set_text (_route->name());
 }
 
 void
@@ -766,8 +989,8 @@ RouteUI::toggle_route_active ()
        bool yn;
 
        if (route_active_menu_item) {
-               if (route_active_menu_item->get_active() != (yn = _route.active())) {
-                       _route.set_active (!yn);
+               if (route_active_menu_item->get_active() != (yn = _route->active())) {
+                       _route->set_active (!yn);
                }
        }
 }
@@ -776,7 +999,7 @@ void
 RouteUI::route_active_changed ()
 {
        if (route_active_menu_item) {
-               Gtkmm2ext::UI::instance()->call_slot (bind (mem_fun (*route_active_menu_item, &CheckMenuItem::set_active), _route.active()));
+               Gtkmm2ext::UI::instance()->call_slot (bind (mem_fun (*route_active_menu_item, &CheckMenuItem::set_active), _route->active()));
        }
 }
 
@@ -789,12 +1012,12 @@ RouteUI::toggle_polarity ()
 
                ENSURE_GUI_THREAD(mem_fun (*this, &RouteUI::toggle_polarity));
                
-               if ((x = polarity_menu_item->get_active()) != _route.phase_invert()) {
-                       _route.set_phase_invert (x, this);
+               if ((x = polarity_menu_item->get_active()) != _route->phase_invert()) {
+                       _route->set_phase_invert (x, this);
                        if (x) {
                                name_label.set_text (X_("Ø ") + name_label.get_text());
                        } else {
-                               name_label.set_text (_route.name());
+                               name_label.set_text (_route->name());
                        }
                }
        }
@@ -806,10 +1029,32 @@ RouteUI::polarity_changed ()
        /* no signal for this yet */
 }
 
+void
+RouteUI::toggle_denormal_protection ()
+{
+       if (denormal_menu_item) {
+
+               bool x;
+
+               ENSURE_GUI_THREAD(mem_fun (*this, &RouteUI::toggle_denormal_protection));
+               
+               if ((x = denormal_menu_item->get_active()) != _route->denormal_protection()) {
+                       _route->set_denormal_protection (x, this);
+               }
+       }
+}
+
+void
+RouteUI::denormal_protection_changed ()
+{
+       /* no signal for this yet */
+}
+
+
 void
 RouteUI::solo_safe_toggle(void* src, Gtk::CheckMenuItem* check)
 {
-       bool yn = _route.solo_safe ();
+       bool yn = _route->solo_safe ();
 
        if (check->get_active() != yn) {
                check->set_active (yn);
@@ -820,7 +1065,7 @@ RouteUI::pre_fader_toggle(void* src, Gtk::CheckMenuItem* check)
 {
        ENSURE_GUI_THREAD(bind (mem_fun (*this, &RouteUI::pre_fader_toggle), src, check));
        
-       bool yn = _route.get_mute_config(PRE_FADER);
+       bool yn = _route->get_mute_config(PRE_FADER);
        if (check->get_active() != yn) {
                check->set_active (yn);
        }
@@ -831,7 +1076,7 @@ RouteUI::post_fader_toggle(void* src, Gtk::CheckMenuItem* check)
 {
        ENSURE_GUI_THREAD(bind (mem_fun (*this, &RouteUI::post_fader_toggle), src, check));
        
-       bool yn = _route.get_mute_config(POST_FADER);
+       bool yn = _route->get_mute_config(POST_FADER);
        if (check->get_active() != yn) {
                check->set_active (yn);
        }
@@ -842,7 +1087,7 @@ RouteUI::control_outs_toggle(void* src, Gtk::CheckMenuItem* check)
 {
        ENSURE_GUI_THREAD(bind (mem_fun (*this, &RouteUI::control_outs_toggle), src, check));
        
-       bool yn = _route.get_mute_config(CONTROL_OUTS);
+       bool yn = _route->get_mute_config(CONTROL_OUTS);
        if (check->get_active() != yn) {
                check->set_active (yn);
        }
@@ -853,7 +1098,7 @@ RouteUI::main_outs_toggle(void* src, Gtk::CheckMenuItem* check)
 {
        ENSURE_GUI_THREAD(bind (mem_fun (*this, &RouteUI::main_outs_toggle), src, check));
        
-       bool yn = _route.get_mute_config(MAIN_OUTS);
+       bool yn = _route->get_mute_config(MAIN_OUTS);
        if (check->get_active() != yn) {
                check->set_active (yn);
        }
@@ -862,58 +1107,67 @@ RouteUI::main_outs_toggle(void* src, Gtk::CheckMenuItem* check)
 void
 RouteUI::disconnect_input ()
 {
-       _route.disconnect_inputs (this);
+       _route->disconnect_inputs (this);
 }
 
 void
 RouteUI::disconnect_output ()
 {
-       _route.disconnect_outputs (this);
+       _route->disconnect_outputs (this);
 }
 
 bool
-RouteUI::is_audio_track () const
+RouteUI::is_track () const
 {
-       return dynamic_cast<AudioTrack*>(&_route) != 0;
+       return boost::dynamic_pointer_cast<Track>(_route) != 0;
 }
 
-bool
-RouteUI::is_midi_track () const
+boost::shared_ptr<Track>
+RouteUI::track() const
 {
-       return dynamic_cast<MidiTrack*>(&_route) != 0;
+       return boost::dynamic_pointer_cast<Track>(_route);
 }
 
-Diskstream*
-RouteUI::get_diskstream () const
+bool
+RouteUI::is_audio_track () const
 {
-       AudioTrack *at;
-       MidiTrack *mt;
-
-       if ((at = dynamic_cast<AudioTrack*>(&_route)) != 0) {
-               return &at->disk_stream();
-       } else if ((mt = dynamic_cast<MidiTrack*>(&_route)) != 0) {
-               return &mt->disk_stream();
-       } else {
-               return 0;
-       }
+       return boost::dynamic_pointer_cast<AudioTrack>(_route) != 0;
 }
 
-AudioTrack*
+boost::shared_ptr<AudioTrack>
 RouteUI::audio_track() const
 {
-       return dynamic_cast<AudioTrack*>(&_route);
+       return boost::dynamic_pointer_cast<AudioTrack>(_route);
+}
+
+bool
+RouteUI::is_midi_track () const
+{
+       return boost::dynamic_pointer_cast<MidiTrack>(_route) != 0;
 }
 
-MidiTrack*
+boost::shared_ptr<MidiTrack>
 RouteUI::midi_track() const
 {
-       return dynamic_cast<MidiTrack*>(&_route);
+       return boost::dynamic_pointer_cast<MidiTrack>(_route);
+}
+
+boost::shared_ptr<Diskstream>
+RouteUI::get_diskstream () const
+{
+       boost::shared_ptr<Track> t;
+
+       if ((t = boost::dynamic_pointer_cast<Track>(_route)) != 0) {
+               return t->diskstream();
+       } else {
+               return boost::shared_ptr<Diskstream> ((Diskstream*) 0);
+       }
 }
 
 string
 RouteUI::name() const
 {
-       return _route.name();
+       return _route->name();
 }
 
 void
@@ -921,7 +1175,7 @@ RouteUI::map_frozen ()
 {
        ENSURE_GUI_THREAD (mem_fun (*this, &RouteUI::map_frozen));
 
-       AudioTrack* at = dynamic_cast<AudioTrack*>(&_route);
+       AudioTrack* at = dynamic_cast<AudioTrack*>(_route.get());
 
        if (at) {
                switch (at->freeze_state()) {
@@ -934,3 +1188,9 @@ RouteUI::map_frozen ()
                }
        }
 }
+
+void
+RouteUI::adjust_latency ()
+{
+       LatencyDialog dialog (_route->name() + _("latency"), *(_route.get()), _session.frame_rate(), _session.engine().frames_per_cycle());
+}