/*
    Copyright (C) 2002-2006 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
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#include <gtkmm2ext/gtk_ui.h>
#include <gtkmm2ext/stop_signal.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 "ardour/dB.h"
#include "pbd/memento_command.h"
#include "pbd/stacktrace.h"
#include "pbd/shiva.h"
#include "pbd/controllable.h"
#include "pbd/enumwriter.h"

#include "ardour_ui.h"
#include "editor.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 "mixer_strip.h"
#include "automation_time_axis.h"
#include "route_time_axis.h"

#include "ardour/route.h"
#include "ardour/event_type_map.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/template_utils.h"
#include "ardour/filename_extensions.h"
#include "ardour/directory_names.h"
#include "ardour/profile.h"

#include "i18n.h"
using namespace sigc;
using namespace Gtk;
using namespace Gtkmm2ext;
using namespace ARDOUR;
using namespace PBD;

RouteUI::RouteUI (ARDOUR::Session& sess)
	: AxisView(sess)
{
	init ();
}

RouteUI::RouteUI (boost::shared_ptr<ARDOUR::Route> rt, ARDOUR::Session& sess)
	: AxisView(sess)
{
	init ();
	set_route (rt);
}

RouteUI::~RouteUI()
{
       /* derived classes should emit GoingAway so that they receive the signal
          when the object is still a legal derived instance.
       */

	delete solo_menu;
	delete mute_menu;
	delete sends_menu;
}

void
RouteUI::init ()
{
	self_destruct = true;
	xml_node = 0;
	mute_menu = 0;
	solo_menu = 0;
	sends_menu = 0;
	pre_fader_mute_check = 0;
	post_fader_mute_check = 0;
	listen_mute_check = 0;
	main_mute_check = 0;
	ignore_toggle = false;
	wait_for_release = false;
	route_active_menu_item = 0;
	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");
	mute_button->add (mute_button_label);
	mute_button_label.show ();
	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");
	solo_button->add (solo_button_label);
	solo_button_label.show ();
	UI::instance()->set_tip (solo_button, _("Mute other (non-soloed) tracks"), "");
	solo_button->set_no_show_all (true);

	rec_enable_button = manage (new BindableToggleButton ());
	rec_enable_button->set_name ("RecordEnableButton");
	rec_enable_button->set_self_managed (true);
	rec_enable_button->add (rec_enable_button_label);
	rec_enable_button_label.show ();
	UI::instance()->set_tip (rec_enable_button, _("Enable recording on this track"), "");

	show_sends_button = manage (new BindableToggleButton (""));
	show_sends_button->set_name ("SendAlert");
	show_sends_button->set_self_managed (true);
	UI::instance()->set_tip (show_sends_button, _("make mixer strips show sends to this bus"), "");

	_session.SoloChanged.connect (mem_fun(*this, &RouteUI::solo_changed_so_update_mute));
	_session.TransportStateChange.connect (mem_fun (*this, &RouteUI::check_rec_enable_sensitivity));

	Config->ParameterChanged.connect (mem_fun (*this, &RouteUI::parameter_changed));
}

void
RouteUI::reset ()
{
	//Remove route connections associated with us.
	for (vector<sigc::connection>::iterator it = connections.begin(); it!=connections.end(); ++it) {
	    (*it).disconnect();
	}

	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_route (boost::shared_ptr<Route> rp)
{
	reset ();

	_route = rp;

	if (set_color_from_route()) {
		set_color (unique_random_color());
	}

	/* no, there is no memory leak here. This object cleans itself (and other stuff)
	   up when the route is destroyed.
	*/

	if (self_destruct) {
		new PairedShiva<Route,RouteUI> (*_route, *this);
	}

	mute_button->set_controllable (_route->mute_control());
	solo_button->set_controllable (_route->solo_control());

	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->listen_changed.connect (mem_fun(*this, &RouteUI::listen_changed)));
	connections.push_back (_route->solo_isolated_changed.connect (mem_fun(*this, &RouteUI::solo_changed)));

	if (_session.writable() && is_track()) {
		boost::shared_ptr<Track> t = boost::dynamic_pointer_cast<Track>(_route);

		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->show();
 		rec_enable_button->set_controllable (t->rec_enable_control());

		update_rec_display ();
	}

	mute_button->unset_flags (Gtk::CAN_FOCUS);
	solo_button->unset_flags (Gtk::CAN_FOCUS);

	mute_button->show();

	if (_route->is_control()) {
		solo_button->hide ();
	} else {
		solo_button->show();
	}

	/* map the current state */

	mute_changed (0);
	solo_changed (0);

	map_frozen ();
}

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)) {

			if (mute_menu == 0){
				build_mute_menu();
			}

			mute_menu->popup(0,ev->time);

		} else {

			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::PrimaryModifier))) {
					wait_for_release = true;
				} else {
					return false;
				}
			}

			if (ev->button == 1 || Keyboard::is_button2_event (ev)) {

				if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {

#if 0
					/* Primary-Tertiary-click applies change to all routes */

					_session.begin_reversible_command (_("mute change"));
                                        Session::GlobalMuteStateCommand *cmd = new Session::GlobalMuteStateCommand(_session, this);
					_session.set_mute (!_route->muted());
                                        cmd->mark();
					_session.add_command(cmd);
					_session.commit_reversible_command ();
					multiple_mute_change = true;
#endif

				} else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {

#if 0
					/* Primary-button1 applies change to the mix group.
					   NOTE: Primary-button2 is MIDI learn.
					*/

					if (ev->button == 1) {
						set_route_group_mute (_route, !_route->muted());
					}
#endif

				} else {

#if 0
					/* plain click applies change to this route */
					if (wait_for_release) {
						_route->set_mute (!_route->muted(), this);
					} else {
						reversibly_apply_route_boolean ("mute change", &Route::set_mute, !_route->muted(), this);
					}
#endif
				}
			}
		}

	}

	return true;
}

bool
RouteUI::mute_release(GdkEventButton*)
{
	if (!ignore_toggle) {
		if (wait_for_release){
			wait_for_release = false;
			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;
}

void
RouteUI::post_solo_cleanup (SessionEvent* ev, bool was_not_latched)
{
	ENSURE_GUI_THREAD (bind (mem_fun (*this, &RouteUI::post_solo_cleanup), ev, was_not_latched));

	delete ev;
	
	if (was_not_latched) {
		Config->set_solo_latched (false);
	}
}	

bool
RouteUI::solo_press(GdkEventButton* ev)
{
	/* ignore double/triple clicks */

	if (ev->type == GDK_2BUTTON_PRESS || ev->type == GDK_3BUTTON_PRESS ) {
		return true;
	}

	if (Config->get_solo_control_is_listen_control()) {

		_route->set_listen (!_route->listening(), this);

	} else {

		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, ev->time);

			} else {

				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::PrimaryModifier))) {
						wait_for_release = true;
					} else {
						return false;
					}
				}

				if (ev->button == 1 || Keyboard::is_button2_event (ev)) {

					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);
						}

						SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
						ev->rt_slot =   bind (sigc::mem_fun (_session, &Session::set_solo), _session.get_routes(), !_route->soloed());
						ev->rt_return = bind (sigc::mem_fun (*this, &RouteUI::post_solo_cleanup), was_not_latched);
						
						_session.queue_event (ev);

					} else if (Keyboard::modifier_state_contains (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::SecondaryModifier))) {

						// Primary-Secondary-click: exclusively solo this track, not a toggle */
						
						//boost::shared_ptr<RouteList> rl (new RouteList);
						//rl->push_back (route());

						//SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
						// ev->rt_slot =  bind (sigc::mem_fun (_session, &Session::set_just_one_solo), rl, true);
						//ev->rt_return = sigc::mem_fun (*this, &RouteUI::post_rtop_cleanup);
						
						//_session.queue_event (ev);

					} else if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {

						// shift-click: toggle solo isolated status

						_route->set_solo_isolated (!_route->solo_isolated(), this);
						wait_for_release = false;

					} else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {

#if 0
						/* Primary-button1: solo mix group.
						   NOTE: Primary-button2 is MIDI learn.
						*/

						if (ev->button == 1) {
							queue_route_group_op (RouteGroup::Solo, &Session::set_all_solo, !_route->soloed());
						}
#endif


					} else {

						/* click: solo this route */

						boost::shared_ptr<RouteList> rl (new RouteList);
						rl->push_back (route());
						
						SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
						ev->rt_slot =   bind (sigc::mem_fun (_session, &Session::set_solo), rl, !rec_enable_button->get_active());
						ev->rt_return = sigc::mem_fun (*this, &RouteUI::post_rtop_cleanup);
						
						_session.queue_event (ev);
					}
				}
			}
		}
	}

	return true;
}

bool
RouteUI::solo_release(GdkEventButton*)
{
	if (!ignore_toggle) {
		if (wait_for_release) {
			wait_for_release = false;
			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;
}

void
RouteUI::post_rtop_cleanup (SessionEvent* ev)
{
	ENSURE_GUI_THREAD (bind (mem_fun (*this, &RouteUI::post_rtop_cleanup), ev));
	delete ev;
}

void
RouteUI::post_group_rtop_cleanup (SessionEvent* ev, RouteGroup* rg, RouteGroup::Property prop)
{
	ENSURE_GUI_THREAD (bind (mem_fun (*this, &RouteUI::post_group_rtop_cleanup), ev, rg, prop));
	delete ev;
	rg->set_property (prop, false);
}

void
RouteUI::queue_route_group_op (RouteGroup::Property prop, void (Session::*session_method)(boost::shared_ptr<RouteList>, bool), bool yn)
{
	RouteGroup* rg = _route->route_group();
	bool prop_was_active;

	if (rg) {
		prop_was_active = rg->active_property (prop);
		rg->set_property (prop, true);
	} else {
		prop_was_active = false;
	}

	/* we will queue the op for just this route, but because its route group now has the relevant property marked active,
	   the operation will apply to the whole group (if there is a group)
	*/
	
	boost::shared_ptr<RouteList> rl (new RouteList);
	rl->push_back (route());
	
	SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
	ev->rt_slot =   bind (sigc::mem_fun (_session, session_method), rl, yn);
	if (rg && !prop_was_active) {
		ev->rt_return = bind (sigc::mem_fun (*this, &RouteUI::post_group_rtop_cleanup), rg, prop);
	} else {
		ev->rt_return = sigc::mem_fun (*this, &RouteUI::post_rtop_cleanup);
	}
	
	_session.queue_event (ev);
}

bool
RouteUI::rec_enable_press(GdkEventButton* ev)
{
	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)) {

			// do nothing on midi bind event
			return false;

		} else if (Keyboard::modifier_state_equals (ev->state, Keyboard::ModifierMask (Keyboard::PrimaryModifier|Keyboard::TertiaryModifier))) {

			SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
			ev->rt_slot =   bind (sigc::mem_fun (_session, &Session::set_record_enable), _session.get_routes(), !rec_enable_button->get_active());
			ev->rt_return = sigc::mem_fun (*this, &RouteUI::post_rtop_cleanup);
			
			_session.queue_event (ev);

		} else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {

			/* Primary-button1 applies change to the route group (even if it is not active)
			   NOTE: Primary-button2 is MIDI learn.
			*/
			
			if (ev->button == 1) {
				queue_route_group_op (RouteGroup::RecEnable, &Session::set_record_enable, !rec_enable_button->get_active());
			}

		} else if (Keyboard::is_context_menu_event (ev)) {

			/* do this on release */

		} else {
			boost::shared_ptr<RouteList> rl (new RouteList);
			rl->push_back (route());
			
			SessionEvent* ev = new SessionEvent (SessionEvent::RealTimeOperation, SessionEvent::Add, SessionEvent::Immediate, 0, 0.0);
			ev->rt_slot =   bind (sigc::mem_fun (_session, &Session::set_record_enable), rl, !rec_enable_button->get_active());
			ev->rt_return = sigc::mem_fun (*this, &RouteUI::post_rtop_cleanup);

			_session.queue_event (ev);
		}
	}

	return true;
}

bool
RouteUI::rec_enable_release (GdkEventButton*)
{
	return true;
}

void
RouteUI::build_sends_menu ()
{
	using namespace Menu_Helpers;

	sends_menu = new Menu;
	sends_menu->set_name ("ArdourContextMenu");
	MenuList& items = sends_menu->items();

	items.push_back (MenuElem(_("Assign all tracks (prefader)"), bind (mem_fun (*this, &RouteUI::create_sends), PreFader)));
	items.push_back (MenuElem(_("Assign all tracks (postfader)"), bind (mem_fun (*this, &RouteUI::create_sends), PostFader)));
	items.push_back (MenuElem(_("Assign selected tracks (prefader)"), bind (mem_fun (*this, &RouteUI::create_selected_sends), PreFader)));
	items.push_back (MenuElem(_("Assign selected tracks (postfader)"), bind (mem_fun (*this, &RouteUI::create_selected_sends), PostFader)));
	items.push_back (MenuElem(_("Copy track gains to sends"), mem_fun (*this, &RouteUI::set_sends_gain_from_track)));
	items.push_back (MenuElem(_("Set sends gain to -inf"), mem_fun (*this, &RouteUI::set_sends_gain_to_zero)));
	items.push_back (MenuElem(_("Set sends gain to 0dB"), mem_fun (*this, &RouteUI::set_sends_gain_to_unity)));

}

void
RouteUI::create_sends (Placement p)
{
	_session.globally_add_internal_sends (_route, p);
}

void
RouteUI::create_selected_sends (Placement p)
{
	boost::shared_ptr<RouteList> rlist (new RouteList);
	TrackSelection& selected_tracks (ARDOUR_UI::instance()->the_editor().get_selection().tracks);

	for (TrackSelection::iterator i = selected_tracks.begin(); i != selected_tracks.end(); ++i) {
		RouteTimeAxisView* rtv;
		RouteUI* rui;
		if ((rtv = dynamic_cast<RouteTimeAxisView*>(*i)) != 0) {
			if ((rui = dynamic_cast<RouteUI*>(rtv)) != 0) {
				if (boost::dynamic_pointer_cast<AudioTrack>(rui->route())) {
					rlist->push_back (rui->route());
				}
			}
		}
	}
	
	_session.add_internal_sends (_route, p, rlist);
}

void
RouteUI::set_sends_gain_from_track ()
{
	_session.globally_set_send_gains_from_track (_route);
}

void
RouteUI::set_sends_gain_to_zero ()
{
	_session.globally_set_send_gains_to_zero (_route);
}

void
RouteUI::set_sends_gain_to_unity ()
{
	_session.globally_set_send_gains_to_unity (_route);
}

bool
RouteUI::show_sends_press(GdkEventButton* ev)
{
	if (ev->type == GDK_2BUTTON_PRESS || ev->type == GDK_3BUTTON_PRESS ) {
		return true;
	}

	if (!ignore_toggle && !is_track() && show_sends_button) {

		if (Keyboard::is_button2_event (ev) && Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {

			// do nothing on midi bind event
			return false;

		} else if (Keyboard::is_context_menu_event (ev)) {

			if (sends_menu == 0) {
				build_sends_menu ();
			}

			sends_menu->popup (0, ev->time);

		} else {

			/* change button state */

			show_sends_button->set_active (!show_sends_button->get_active());

			/* start blinking */

			if (show_sends_button->get_active()) {
				/* show sends to this bus */
				MixerStrip::SwitchIO (_route);
				send_blink_connection = ARDOUR_UI::instance()->Blink.connect (mem_fun(*this, &RouteUI::send_blink));
			} else {
				/* everybody back to normal */
				send_blink_connection.disconnect ();
				MixerStrip::SwitchIO (boost::shared_ptr<Route>());
			}

		}
	}

	return true;
}

bool
RouteUI::show_sends_release (GdkEventButton*)
{
	return true;
}

void
RouteUI::send_blink (bool onoff)
{
	if (!show_sends_button) {
		return;
	}

	if (onoff) {
		show_sends_button->set_state (STATE_ACTIVE);
	} else {
		show_sends_button->set_state (STATE_NORMAL);
	}
}

void
RouteUI::solo_changed(void* /*src*/)
{
	Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &RouteUI::update_solo_display));
}


void
RouteUI::listen_changed(void* /*src*/)
{
	Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &RouteUI::update_solo_display));
}

int
RouteUI::solo_visual_state (boost::shared_ptr<Route> r)
{
	if (Config->get_solo_control_is_listen_control()) {

		if (r->listening()) {
			return 1;
		} else {
			return 0;
		}

	} else {

		if (r->solo_isolated()) {
			return 2;
		} else if (r->soloed()) {
			return 1;
		} else {
			return 0;
		}
	}

	return 0;
}

void
RouteUI::update_solo_display ()
{
	bool x;
	
	if (Config->get_solo_control_is_listen_control()) {

		if (solo_button->get_active() != (x = _route->listening())) {
			ignore_toggle = true;
			solo_button->set_active(x);
			ignore_toggle = false;
		}

	} else {

		if (solo_button->get_active() != (x = _route->soloed())) {
			ignore_toggle = true;
			solo_button->set_active (x);
			ignore_toggle = false;
		}

	}

	solo_button->set_visual_state (solo_visual_state (_route));
}

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*/)
{
	Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &RouteUI::update_mute_display));
}

int
RouteUI::mute_visual_state (Session& s, boost::shared_ptr<Route> r)
{
	if (Config->get_show_solo_mutes()) {
		
		if (r->muted ()) {
			/* full mute */
			return 2;
		} else if (s.soloing() && !r->soloed() && !r->solo_isolated()) {
			/* mute-because-not-soloed */
			return 1;
		} else {
			/* no mute at all */
			return 0;
		}

	} else {

		if (r->muted()) {
			/* full mute */
			return 2;
		} else {
			/* no mute at all */
			return 0;
		}
	}

	return 0;
}

void
RouteUI::update_mute_display ()
{
	bool model = _route->muted();
	bool view = mute_button->get_active();

	/* first make sure the button's "depressed" visual
	   is correct.
	*/

	if (model != view) {
		ignore_toggle = true;
		mute_button->set_active (model);
		ignore_toggle = false;
	}

	mute_button->set_visual_state (mute_visual_state (_session, _route));
}

void
RouteUI::route_rec_enable_changed ()
{
	Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &RouteUI::update_rec_display));
}

void
RouteUI::session_rec_enable_changed ()
{
	Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &RouteUI::update_rec_display));
}

void
RouteUI::update_rec_display ()
{
	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:
			rec_enable_button->set_visual_state (2);
			break;

		}

	} else {
		rec_enable_button->set_visual_state (0);
	}

	check_rec_enable_sensitivity ();
}

void
RouteUI::build_solo_menu (void)
{
	using namespace Menu_Helpers;

	solo_menu = new Menu;
	solo_menu->set_name ("ArdourContextMenu");
	MenuList& items = solo_menu->items();
	CheckMenuItem* check;

	check = new CheckMenuItem(_("Solo Isolate"));
	check->set_active (_route->solo_isolated());
	check->signal_toggled().connect (bind (mem_fun (*this, &RouteUI::toggle_solo_isolated), check));
	_route->solo_isolated_changed.connect(bind (mem_fun (*this, &RouteUI::solo_isolated_toggle), check));
	items.push_back (CheckMenuElem(*check));
	check->show_all();

	check = new CheckMenuItem(_("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));
	items.push_back (CheckMenuElem(*check));
	check->show_all();

	//items.push_back (SeparatorElem());
	// items.push_back (MenuElem (_("MIDI Bind"), mem_fun (*mute_button, &BindableToggleButton::midi_learn)));

}

void
RouteUI::build_mute_menu(void)
{
	using namespace Menu_Helpers;

	mute_menu = new Menu;
	mute_menu->set_name ("ArdourContextMenu");

	MenuList& items = mute_menu->items();

	pre_fader_mute_check = manage (new CheckMenuItem(_("Pre Fader")));
	init_mute_menu(MuteMaster::PreFader, pre_fader_mute_check);
	pre_fader_mute_check->signal_toggled().connect(bind (mem_fun (*this, &RouteUI::toggle_mute_menu), MuteMaster::PreFader, pre_fader_mute_check));
	items.push_back (CheckMenuElem(*pre_fader_mute_check));
	pre_fader_mute_check->show_all();

	post_fader_mute_check = manage (new CheckMenuItem(_("Post Fader")));
	init_mute_menu(MuteMaster::PostFader, post_fader_mute_check);
	post_fader_mute_check->signal_toggled().connect(bind (mem_fun (*this, &RouteUI::toggle_mute_menu), MuteMaster::PostFader, post_fader_mute_check));
	items.push_back (CheckMenuElem(*post_fader_mute_check));
	post_fader_mute_check->show_all();

	listen_mute_check = manage (new CheckMenuItem(_("Control Outs")));
	init_mute_menu(MuteMaster::Listen, listen_mute_check);
	listen_mute_check->signal_toggled().connect(bind (mem_fun (*this, &RouteUI::toggle_mute_menu), MuteMaster::Listen, listen_mute_check));
	items.push_back (CheckMenuElem(*listen_mute_check));
	listen_mute_check->show_all();

	main_mute_check = manage (new CheckMenuItem(_("Main Outs")));
	init_mute_menu(MuteMaster::Main, main_mute_check);
	main_mute_check->signal_toggled().connect(bind (mem_fun (*this, &RouteUI::toggle_mute_menu), MuteMaster::Main, main_mute_check));
	items.push_back (CheckMenuElem(*main_mute_check));
	main_mute_check->show_all();

	//items.push_back (SeparatorElem());
	// items.push_back (MenuElem (_("MIDI Bind"), mem_fun (*mute_button, &BindableToggleButton::midi_learn)));

	_route->mute_points_changed.connect (mem_fun (*this, &RouteUI::muting_change));
}

void
RouteUI::init_mute_menu(MuteMaster::MutePoint mp, CheckMenuItem* check)
{
	check->set_active (_route->mute_points() & mp);
}

void
RouteUI::toggle_mute_menu(MuteMaster::MutePoint mp, Gtk::CheckMenuItem* check)
{
	if (check->get_active()) {
		_route->set_mute_points (MuteMaster::MutePoint (_route->mute_points() | mp));
	} else {
		_route->set_mute_points (MuteMaster::MutePoint (_route->mute_points() & ~mp));
	}
}

void
RouteUI::muting_change ()
{
	ENSURE_GUI_THREAD(mem_fun (*this, &RouteUI::muting_change));

	bool yn;
	MuteMaster::MutePoint current = _route->mute_points ();

	yn = (current & MuteMaster::PreFader);

	if (pre_fader_mute_check->get_active() != yn) {
		pre_fader_mute_check->set_active (yn);
	}

	yn = (current & MuteMaster::PostFader);

	if (post_fader_mute_check->get_active() != yn) {
		post_fader_mute_check->set_active (yn);
	}

	yn = (current & MuteMaster::Listen);

	if (listen_mute_check->get_active() != yn) {
		listen_mute_check->set_active (yn);
	}

	yn = (current & MuteMaster::Main);

	if (main_mute_check->get_active() != yn) {
		main_mute_check->set_active (yn);
	}
}

void
RouteUI::toggle_solo_isolated (Gtk::CheckMenuItem* check)
{
	_route->set_solo_isolated (check->get_active(), this);
}

void
RouteUI::toggle_solo_safe (Gtk::CheckMenuItem* check)
{
	_route->set_solo_safe (check->get_active(), this);
}

void
RouteUI::set_route_group_solo(boost::shared_ptr<Route> route, bool yn)
{
	RouteGroup* route_group;

	if((route_group = route->route_group()) != 0){
		_session.begin_reversible_command (_("mix group solo  change"));
                Session::GlobalSoloStateCommand *cmd = new Session::GlobalSoloStateCommand(_session, this);
		route_group->apply(&Route::set_solo, yn, this);
                cmd->mark();
		_session.add_command (cmd);
		_session.commit_reversible_command ();
	} else {
		reversibly_apply_route_boolean ("solo change", &Route::set_solo, !route->soloed(), this);
	}
}

void
RouteUI::reversibly_apply_route_boolean (string name, void (Route::*func)(bool, void *), bool yn, void *arg)
{
	_session.begin_reversible_command (name);
	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_track_boolean (string name, void (Track::*func)(bool, void *), bool yn, void *arg)
{
	_session.begin_reversible_command (name);
	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_route_group_mute(boost::shared_ptr<Route> route, bool yn)
{
	RouteGroup* route_group;

	if((route_group = route->route_group()) != 0){
		_session.begin_reversible_command (_("mix group mute change"));
                Session::GlobalMuteStateCommand *cmd = new Session::GlobalMuteStateCommand (_session, this);
		route_group->apply(&Route::set_mute, yn, this);
                cmd->mark();
		_session.add_command(cmd);
		_session.commit_reversible_command ();
	} else {
		reversibly_apply_route_boolean ("mute change", &Route::set_mute, !route->muted(), this);
	}
}

void
RouteUI::set_route_group_rec_enable(boost::shared_ptr<Route> route, bool yn)
{
	RouteGroup* route_group;

	if((route_group = route->route_group()) != 0){
		_session.begin_reversible_command (_("mix group rec-enable change"));
                Session::GlobalRecordEnableStateCommand *cmd = new Session::GlobalRecordEnableStateCommand(_session, this);
		route_group->apply (&Route::set_record_enable, yn, 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);
	}
}


bool
RouteUI::choose_color()
{
	bool picked;
	Gdk::Color color;

	color = Gtkmm2ext::UI::instance()->get_color (_("ardour: color selection"), picked, &_color);

	if (picked) {
		set_color (color);
	}

	return picked;
}

void
RouteUI::set_color (const Gdk::Color & c)
{
	char buf[64];

	_color = c;

	ensure_xml_node ();
	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 */
}


void
RouteUI::ensure_xml_node ()
{
	if (xml_node == 0) {
		if ((xml_node = _route->extra_xml ("GUI")) == 0) {
			xml_node = new XMLNode ("GUI");
			_route->add_extra_xml (*xml_node);
		}
	}
}

XMLNode*
RouteUI::get_automation_child_xml_node (Evoral::Parameter param)
{
	ensure_xml_node ();

	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;
}

int
RouteUI::set_color_from_route ()
{
	XMLProperty *prop;

	RouteUI::ensure_xml_node ();

	if ((prop = xml_node->property ("color")) != 0) {
		int r, g, b;
		sscanf (prop->value().c_str(), "%d:%d:%d", &r, &g, &b);
		_color.set_red(r);
		_color.set_green(g);
		_color.set_blue(b);
		return 0;
	}
	return 1;
}

void
RouteUI::remove_this_route ()
{
	vector<string> choices;
	string prompt;

	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());
	}

	choices.push_back (_("No, do nothing."));
	choices.push_back (_("Yes, remove it."));

	Choice prompter (prompt, choices);

	if (prompter.run () == 1) {
		Glib::signal_idle().connect (bind (sigc::ptr_fun (&RouteUI::idle_remove_this_route), this));
	}
}

gint
RouteUI::idle_remove_this_route (RouteUI *rui)
{
	rui->_session.remove_route (rui->_route);
	return false;
}

void
RouteUI::route_rename ()
{
	ArdourPrompter name_prompter (true);
	string result;
	name_prompter.set_prompt (_("New 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 ();

	switch (name_prompter.run ()) {

	case Gtk::RESPONSE_ACCEPT:
        name_prompter.get_result (result);
        if (result.length()) {
			_route->set_name (result);
		}
		break;
	}

	return;

}

void
RouteUI::name_changed ()
{
	ENSURE_GUI_THREAD(sigc::mem_fun(*this, &RouteUI::name_changed));

	name_label.set_text (_route->name());
}

void
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);
		}
	}
}

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()));
	}
}

void
RouteUI::toggle_polarity ()
{
	if (polarity_menu_item) {

		bool x;

		ENSURE_GUI_THREAD(mem_fun (*this, &RouteUI::toggle_polarity));

		if ((x = polarity_menu_item->get_active()) != _route->phase_invert()) {
			_route->set_phase_invert (x);
			if (x) {
			        name_label.set_text (X_("Ø ") + name_label.get_text());
			} else {
			        name_label.set_text (_route->name());
			}
		}
	}
}

void
RouteUI::polarity_changed ()
{
	if (_route->phase_invert()) {
		name_label.set_text (X_("Ø ") + name_label.get_text());
	} else {
		name_label.set_text (_route->name());
	}
}

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);
		}
	}
}

void
RouteUI::denormal_protection_changed ()
{
	if (denormal_menu_item) {
		denormal_menu_item->set_active (_route->denormal_protection());
	}
}

void
RouteUI::solo_isolated_toggle(void* /*src*/, Gtk::CheckMenuItem* check)
{
	bool yn = _route->solo_isolated ();

	if (check->get_active() != yn) {
		check->set_active (yn);
	}
}


void
RouteUI::solo_safe_toggle(void* /*src*/, Gtk::CheckMenuItem* check)
{
	bool yn = _route->solo_safe ();

	if (check->get_active() != yn) {
		check->set_active (yn);
	}
}

void
RouteUI::disconnect_input ()
{
	_route->input()->disconnect (this);
}

void
RouteUI::disconnect_output ()
{
	_route->output()->disconnect (this);
}

bool
RouteUI::is_track () const
{
	return boost::dynamic_pointer_cast<Track>(_route) != 0;
}

boost::shared_ptr<Track>
RouteUI::track() const
{
	return boost::dynamic_pointer_cast<Track>(_route);
}

bool
RouteUI::is_audio_track () const
{
	return boost::dynamic_pointer_cast<AudioTrack>(_route) != 0;
}

boost::shared_ptr<AudioTrack>
RouteUI::audio_track() const
{
	return boost::dynamic_pointer_cast<AudioTrack>(_route);
}

bool
RouteUI::is_midi_track () const
{
	return boost::dynamic_pointer_cast<MidiTrack>(_route) != 0;
}

boost::shared_ptr<MidiTrack>
RouteUI::midi_track() const
{
	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();
}

void
RouteUI::map_frozen ()
{
	ENSURE_GUI_THREAD (mem_fun (*this, &RouteUI::map_frozen));

 	AudioTrack* at = dynamic_cast<AudioTrack*>(_route.get());

	if (at) {
		switch (at->freeze_state()) {
		case AudioTrack::Frozen:
			rec_enable_button->set_sensitive (false);
			break;
		default:
			rec_enable_button->set_sensitive (true);
			break;
		}
	}
}

void
RouteUI::adjust_latency ()
{
	LatencyDialog dialog (_route->name() + _(" latency"), *(_route->output()), _session.frame_rate(), _session.engine().frames_per_cycle());
}

void
RouteUI::save_as_template ()
{
	sys::path path;
	Glib::ustring safe_name;
	string name;

	path = ARDOUR::user_route_template_directory ();

	if (g_mkdir_with_parents (path.to_string().c_str(), 0755)) {
		error << string_compose (_("Cannot create route template directory %1"), path.to_string()) << endmsg;
		return;
	}

	Prompter p (true); // modal

	p.set_prompt (_("Template name:"));
	switch (p.run()) {
	case RESPONSE_ACCEPT:
		break;
	default:
		return;
	}

	p.hide ();
	p.get_result (name, true);

	safe_name = legalize_for_path (name);
	safe_name += template_suffix;

	path /= safe_name;

	_route->save_as_template (path.to_string(), name);
}

void
RouteUI::check_rec_enable_sensitivity ()
{
	if (_session.transport_rolling() && rec_enable_button->get_active() && Config->get_disable_disarm_during_roll()) {
		rec_enable_button->set_sensitive (false);
	} else {
		rec_enable_button->set_sensitive (true);
	}
}

void
RouteUI::parameter_changed (string const & p)
{
	ENSURE_GUI_THREAD (bind (mem_fun (*this, &RouteUI::parameter_changed), p));

	if (p == "disable-disarm-during-roll") {
		check_rec_enable_sensitivity ();
	} else if (p == "solo-control-is-listen-control") {
		set_button_names ();
	} else if (p == "listen-position") {
		set_button_names ();
	}
}

void
RouteUI::step_gain_up ()
{
	_route->set_gain (dB_to_coefficient (accurate_coefficient_to_dB (_route->gain_control()->get_value()) + 0.1), this);
}

void
RouteUI::page_gain_up ()
{
	_route->set_gain (dB_to_coefficient (accurate_coefficient_to_dB (_route->gain_control()->get_value()) + 0.5), this);
}

void
RouteUI::step_gain_down ()
{
	_route->set_gain (dB_to_coefficient (accurate_coefficient_to_dB (_route->gain_control()->get_value()) - 0.1), this);
}

void
RouteUI::page_gain_down ()
{
	_route->set_gain (dB_to_coefficient (accurate_coefficient_to_dB (_route->gain_control()->get_value()) - 0.5), this);
}

void
RouteUI::open_remote_control_id_dialog ()
{
	ArdourDialog dialog (_("Remote Control ID"));

	uint32_t const limit = _session.ntracks() + _session.nbusses () + 4;

	HBox* hbox = manage (new HBox);
	hbox->set_spacing (6);
	hbox->pack_start (*manage (new Label (_("Remote control ID:"))));
	SpinButton* spin = manage (new SpinButton);
	spin->set_digits (0);
	spin->set_increments (1, 10);
	spin->set_range (0, limit);
	spin->set_value (_route->remote_control_id());
	hbox->pack_start (*spin);
	dialog.get_vbox()->pack_start (*hbox);

	dialog.add_button (Stock::CANCEL, RESPONSE_CANCEL);
	dialog.add_button (Stock::APPLY, RESPONSE_ACCEPT);

	dialog.show_all ();
	int const r = dialog.run ();

	if (r == RESPONSE_ACCEPT) {
		_route->set_remote_control_id (spin->get_value_as_int ());
	}
}