/*
    Copyright (C) 2000 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.

*/

/* This file contains any ARDOUR_UI methods that require knowledge of
   the various dialog boxes, and exists so that no compilation dependency 
   exists between the main ARDOUR_UI modules and their respective classes.
   This is to cut down on the compile times.  It also helps with my sanity.
*/

#include <ardour/session.h>

#include "actions.h"
#include "ardour_ui.h"
#include "connection_editor.h"
#include "location_ui.h"
#include "mixer_ui.h"
#include "option_editor.h"
#include "public_editor.h"
#include "route_params_ui.h"
#include "sfdb_ui.h"
#include "color_manager.h"

#include "i18n.h"

using namespace ARDOUR;
using namespace PBD;
using namespace Glib;
using namespace Gtk;
using namespace Gtkmm2ext;

void
ARDOUR_UI::connect_to_session (Session *s)
{
	session = s;

	session->HaltOnXrun.connect (mem_fun(*this, &ARDOUR_UI::halt_on_xrun_message));
	session->RecordStateChanged.connect (mem_fun (*this, &ARDOUR_UI::record_state_changed));

	/* sensitize menu bar options that are now valid */

	ActionManager::set_sensitive (ActionManager::session_sensitive_actions, true);
	
	if (session->locations()->num_range_markers()) {
		ActionManager::set_sensitive (ActionManager::range_sensitive_actions, true);
	} else {
		ActionManager::set_sensitive (ActionManager::range_sensitive_actions, false);
	}

	if (!session->control_out()) {
		Glib::RefPtr<Action> act = ActionManager::get_action (X_("options"), X_("SoloViaBus"));
		if (act) {
			act->set_sensitive (false);
		}
	}

	/* allow wastebasket flush again */

	Glib::RefPtr<Action> act = ActionManager::get_action (X_("Main"), X_("FlushWastebasket"));
	if (act) {
		act->set_sensitive (true);
	}

	/* there are never any selections on startup */

	ActionManager::set_sensitive (ActionManager::region_selection_sensitive_actions, false);
	ActionManager::set_sensitive (ActionManager::time_selection_sensitive_actions, false);
	ActionManager::set_sensitive (ActionManager::track_selection_sensitive_actions, false);
	ActionManager::set_sensitive (ActionManager::line_selection_sensitive_actions, false);
	ActionManager::set_sensitive (ActionManager::point_selection_sensitive_actions, false);
	ActionManager::set_sensitive (ActionManager::playlist_selection_sensitive_actions, false);

	session->locations()->added.connect (mem_fun (*this, &ARDOUR_UI::handle_locations_change));
	session->locations()->removed.connect (mem_fun (*this, &ARDOUR_UI::handle_locations_change));

	rec_button.set_sensitive (true);
	shuttle_box.set_sensitive (true);
	
	if (connection_editor) {
		connection_editor->set_session (s);
	}

	if (location_ui) {
		location_ui->set_session(s);
	}

	if (route_params) {
		route_params->set_session (s);
	}

	if (option_editor) {
		option_editor->set_session (s);
	}

	setup_session_options ();

	Blink.connect (mem_fun(*this, &ARDOUR_UI::transport_rec_enable_blink));
	Blink.connect (mem_fun(*this, &ARDOUR_UI::solo_blink));
	Blink.connect (mem_fun(*this, &ARDOUR_UI::audition_blink));

	/* these are all need to be handled in an RT-safe and MT way, so don't
	   do any GUI work, just queue it for handling by the GUI thread.
	*/

	session->TransportStateChange.connect (mem_fun(*this, &ARDOUR_UI::queue_transport_change));

	/* alert the user to these things happening */

	session->AuditionActive.connect (mem_fun(*this, &ARDOUR_UI::auditioning_changed));
	session->SoloActive.connect (mem_fun(*this, &ARDOUR_UI::soloing_changed));

	solo_alert_button.set_active (session->soloing());

	/* update autochange callback on dirty state changing */

	session->DirtyChanged.connect (mem_fun(*this, &ARDOUR_UI::update_autosave));

	/* can't be auditioning here */

	primary_clock.set_session (s);
	secondary_clock.set_session (s);
	big_clock.set_session (s);
	preroll_clock.set_session (s);
	postroll_clock.set_session (s);

	/* Clocks are on by default after we are connected to a session, so show that here.
	*/
	
	connect_dependents_to_session (s);

	/* listen to clock mode changes. don't do this earlier because otherwise as the clocks
	   restore their modes or are explicitly set, we will cause the "new" mode to be saved
	   back to the session XML ("extra") state.
	 */

	AudioClock::ModeChanged.connect (mem_fun (*this, &ARDOUR_UI::store_clock_modes));

	Glib::signal_idle().connect (mem_fun (*this, &ARDOUR_UI::first_idle));

	start_clocking ();
	start_blinking ();

	transport_stopped ();

	second_connection = Glib::signal_timeout().connect (mem_fun(*this, &ARDOUR_UI::every_second), 1000);
	point_one_second_connection = Glib::signal_timeout().connect (mem_fun(*this, &ARDOUR_UI::every_point_one_seconds), 100);
	point_zero_one_second_connection = Glib::signal_timeout().connect (mem_fun(*this, &ARDOUR_UI::every_point_zero_one_seconds), 40);
}

int
ARDOUR_UI::unload_session ()
{
	if (session && session->dirty()) {
		switch (ask_about_saving_session (_("close"))) {
		case -1:
			return 1;
			
		case 1:
			session->save_state ("");
			break;
		}
	}
	editor->hide ();
	second_connection.disconnect ();
	point_one_second_connection.disconnect ();
	point_oh_five_second_connection.disconnect ();
	point_zero_one_second_connection.disconnect();

	ActionManager::set_sensitive (ActionManager::session_sensitive_actions, false);
	
	rec_button.set_sensitive (false);
	shuttle_box.set_sensitive (false);

	stop_blinking ();
	stop_clocking ();

	/* drop everything attached to the blink signal */

	Blink.clear ();

	primary_clock.set_session (0);
	secondary_clock.set_session (0);
	big_clock.set_session (0);
	preroll_clock.set_session (0);
	postroll_clock.set_session (0);

	if (option_editor) {
		option_editor->set_session (0);
	}

	if (mixer) {
		mixer->hide_all ();
	}

	delete session;
	session = 0;

	update_buffer_load ();

	return 0;
}

int
ARDOUR_UI::create_connection_editor ()
{
#if 0
	if (connection_editor == 0) {
		connection_editor = new ConnectionEditor ();
		connection_editor->signal_unmap().connect (sigc::bind (ptr_fun(&ActionManager::uncheck_toggleaction), X_("<Actions>/Common/ToggleConnections")));
	}

	if (session) {
		connection_editor->set_session (session);
	}
#endif

	return 0;
}

void
ARDOUR_UI::toggle_connection_editor ()
{
	if (create_connection_editor()) {
		return;
	}

#if 0
	RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleConnections"));
	if (act) {
		RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
	
		if (tact->get_active()) {
			connection_editor->show_all ();
			connection_editor->present ();
		} else {
			connection_editor->hide ();
		} 
	}
#endif
}

void
ARDOUR_UI::toggle_big_clock_window ()
{
	RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleBigClock"));
	if (act) {
		RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
	
		if (tact->get_active()) {
			big_clock_window->show_all ();
			big_clock_window->present ();
		} else {
			big_clock_window->hide ();
		} 
	}
}

void
ARDOUR_UI::toggle_options_window ()
{
	if (option_editor == 0) {
		option_editor = new OptionEditor (*this, *editor, *mixer);
		option_editor->signal_unmap().connect(sigc::bind (sigc::ptr_fun(&ActionManager::uncheck_toggleaction), X_("<Actions>/Common/ToggleOptionsEditor")));
		option_editor->set_session (session);
	} 

	RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleOptionsEditor"));
	if (act) {
		RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
	
		if (tact->get_active()) {
			option_editor->show_all ();
			option_editor->present ();
		} else {
			option_editor->hide ();
		} 
	}
}

int
ARDOUR_UI::create_location_ui ()
{
	if (location_ui == 0) {
		location_ui = new LocationUI ();
		location_ui->set_session (session);
		location_ui->signal_unmap().connect (sigc::bind (sigc::ptr_fun(&ActionManager::uncheck_toggleaction), X_("<Actions>/Common/ToggleLocations")));
	}
	return 0;
}

void
ARDOUR_UI::toggle_location_window ()
{
	if (create_location_ui()) {
		return;
	}

	RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleLocations"));
	if (act) {
		RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
	
		if (tact->get_active()) {
			location_ui->show_all ();
			location_ui->present ();
		} else {
			location_ui->hide ();
		} 
	}
}

void
ARDOUR_UI::toggle_color_manager ()
{
	RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleColorManager"));
	if (act) {
		RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
	
		if (tact->get_active()) {
			color_manager->show_all ();
			color_manager->present ();
		} else {
			color_manager->hide ();
		} 
	}
}

int
ARDOUR_UI::create_route_params ()
{
	if (route_params == 0) {
		route_params = new RouteParams_UI ();
		route_params->set_session (session);
		route_params->signal_unmap().connect (sigc::bind(sigc::ptr_fun(&ActionManager::uncheck_toggleaction), X_("<Actions>/Common/ToggleInspector")));
	}
	return 0;
}

void
ARDOUR_UI::toggle_route_params_window ()
{
	if (create_route_params ()) {
		return;
	}

	RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleInspector"));
	if (act) {
		RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
	
		if (tact->get_active()) {
			route_params->show_all ();
			route_params->present ();
		} else {
			route_params->hide ();
		} 
	}
}

void
ARDOUR_UI::handle_locations_change (Location* ignored)
{
	if (session) {
		if (session->locations()->num_range_markers()) {
			ActionManager::set_sensitive (ActionManager::range_sensitive_actions, true);
		} else {
			ActionManager::set_sensitive (ActionManager::range_sensitive_actions, false);
		}
	}
}