/*
    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.

*/

#ifdef WAF_BUILD
#include "gtk2ardour-config.h"
#endif

/* this file exists solely to break compilation dependencies that
   would connect changes to the mixer or editor objects.
*/

#include <cstdio>

#include "pbd/error.h"

#include "ardour/session.h"

#include "actions.h"
#include "ardour_ui.h"
#include "public_editor.h"
#include "meterbridge.h"
#include "mixer_ui.h"
#include "keyboard.h"
#include "splash.h"
#include "route_params_ui.h"
#include "opts.h"
#include "utils.h"

#include "i18n.h"

using namespace Gtk;
using namespace PBD;

namespace ARDOUR {
	class Session;
	class Route;
}

using namespace ARDOUR;

void
ARDOUR_UI::we_have_dependents ()
{
	install_actions ();
	ProcessorBox::register_actions ();
	keyboard->setup_keybindings ();
	editor->setup_tooltips ();
	editor->UpdateAllTransportClocks.connect (sigc::mem_fun (*this, &ARDOUR_UI::update_transport_clocks));

	/* catch up on tabbable state */

	std::cerr << "Tab catch up\n";
	
	tabbable_state_change (*editor);
	tabbable_state_change (*mixer);
	tabbable_state_change (*rc_option_editor);
	
	std::cerr << "Tab catch done\n";
	
	/* all actions are defined */

	ActionManager::enable_accelerators ();
	ActionManager::load_menus (ARDOUR_COMMAND_LINE::menus_file);

	editor->track_mixer_selection ();
	mixer->track_editor_selection ();

	/* catch up on parameters */
	
	boost::function<void (std::string)> pc (boost::bind (&ARDOUR_UI::parameter_changed, this, _1));
	Config->map_parameters (pc);

	ARDOUR_UI_UTILS::reset_dpi ();
}

void
ARDOUR_UI::connect_dependents_to_session (ARDOUR::Session *s)
{
	DisplaySuspender ds;
	BootMessage (_("Setup Editor"));
	editor->set_session (s);
	BootMessage (_("Setup Mixer"));
	mixer->set_session (s);
	meterbridge->set_session (s);

	/* its safe to do this now */

	BootMessage (_("Reload Session History"));
	s->restore_history ("");
}

/** The main editor window has been closed */
gint
ARDOUR_UI::exit_on_main_window_close (GdkEventAny * /*ev*/)
{
#ifdef TOP_MENUBAR
	/* just hide the window, and return - the top menu stays up */
	editor->hide ();
	return TRUE;
#else
	/* time to get out of here */
	finish();
	return TRUE;
#endif
}

GtkNotebook*
ARDOUR_UI::tab_window_root_drop (GtkNotebook* src,
				 GtkWidget* w,
				 gint x,
				 gint y,
				 gpointer)
{
	using namespace std;
	Gtk::Notebook* nb = 0;
	Gtk::Window* win = 0;
	Gtkmm2ext::Tabbable* tabbable = 0;


	if (w == GTK_WIDGET(editor->contents().gobj())) {
		tabbable = editor;
	} else if (w == GTK_WIDGET(mixer->contents().gobj())) {
		tabbable = mixer;
	} else if (w == GTK_WIDGET(rc_option_editor->contents().gobj())) {
		tabbable = rc_option_editor;
	} else {
		return 0;
	}

	nb = tabbable->tab_root_drop ();
	win = tabbable->own_window ();

	if (nb) {
		win->move (x, y);
		win->show_all ();
		win->present ();
		return nb->gobj();
	}
	
	return 0; /* what was that? */
}

bool
ARDOUR_UI::idle_ask_about_quit ()
{
	if (_session && _session->dirty()) {
		finish ();
	} else {
		/* no session or session not dirty, but still ask anyway */

		Gtk::MessageDialog msg (string_compose ("Quit %1?", PROGRAM_NAME),
		                        false, /* no markup */
		                        Gtk::MESSAGE_INFO,
		                        Gtk::BUTTONS_YES_NO,
		                        true); /* modal */
		msg.set_default_response (Gtk::RESPONSE_YES);

		if (msg.run() == Gtk::RESPONSE_YES) {
			finish ();
		}
	}

	/* not reached but keep the compiler happy */

	return false;
}

bool
ARDOUR_UI::main_window_delete_event (GdkEventAny* ev)
{
	/* quit the application as soon as we go idle. If we call this here,
	 * the window manager/desktop can think we're taking too longer to
	 * handle the "delete" event
	 */
	
	Glib::signal_idle().connect (sigc::mem_fun (*this, &ARDOUR_UI::idle_ask_about_quit));	
	
	return true;
}

static GtkNotebook*
tab_window_root_drop (GtkNotebook* src,
		      GtkWidget* w,
		      gint x,
		      gint y,
		      gpointer user_data)
{
	return ARDOUR_UI::instance()->tab_window_root_drop (src, w, x, y, user_data);
}

int
ARDOUR_UI::setup_windows ()
{
	/* we don't use a widget with its own window for the tab close button,
	   which makes it impossible to rely on GTK+ to generate signals for
	   events occuring "in" this widget. Instead, we pre-connect a
	   handler to the relevant events on the notebook and then check
	   to see if the event coordinates tell us that it occured "in"
	   the close button.
	*/
	_tabs.signal_button_press_event().connect (sigc::mem_fun (*this, &ARDOUR_UI::tabs_button_event), false);
	_tabs.signal_button_release_event().connect (sigc::mem_fun (*this, &ARDOUR_UI::tabs_button_event), false);

	rc_option_editor = new RCOptionEditor;
	rc_option_editor->StateChange.connect (sigc::mem_fun (*this, &ARDOUR_UI::tabbable_state_change));

	if (create_editor ()) {
		error << _("UI: cannot setup editor") << endmsg;
		return -1;
	}

	if (create_mixer ()) {
		error << _("UI: cannot setup mixer") << endmsg;
		return -1;
	}

	if (create_meterbridge ()) {
		error << _("UI: cannot setup meterbridge") << endmsg;
		return -1;
	}

	/* order of addition affects order seen in initial window display */
	
	rc_option_editor->add_to_notebook (_tabs, _("Preferences"));
	mixer->add_to_notebook (_tabs, _("Mixer"));
	editor->add_to_notebook (_tabs, _("Editor"));

	/* all other dialogs are created conditionally */

	we_have_dependents ();

#ifdef TOP_MENUBAR
	EventBox* status_bar_event_box = manage (new EventBox);

	status_bar_event_box->add (status_bar_label);
	status_bar_event_box->add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
	status_bar_label.set_size_request (300, -1);

	status_bar_label.show ();
	status_bar_event_box->show ();

	status_bar_event_box->signal_button_press_event().connect (mem_fun (*this, &ARDOUR_UI::status_bar_button_press));

	status_bar_hpacker.pack_start (*status_bar_event_box, true, true, 6);
	status_bar_hpacker.pack_start (menu_bar_base, false, false, 2);
#else
	top_packer.pack_start (menu_bar_base, false, false);
#endif

	main_vpacker.pack_start (top_packer, false, false);

	/* now add the transport frame to the top of main window */
	
	main_vpacker.pack_start (transport_frame, false, false);
	main_vpacker.pack_start (_tabs, true, true);

#ifdef TOP_MENUBAR
	main_vpacker.pack_start (status_bar_hpacker, false, false);
#endif

	setup_transport();
	build_menu_bar ();
	setup_tooltips ();

	_main_window.signal_delete_event().connect (sigc::mem_fun (*this, &ARDOUR_UI::main_window_delete_event));
	
	/* pack the main vpacker into the main window and show everything
	 */

	_main_window.add (main_vpacker);
	transport_frame.show_all ();

	const XMLNode* mnode = main_window_settings ();

	if (mnode) {
		const XMLProperty* prop;
		gint x = -1;
		gint y = -1;
		gint w = -1;
		gint h = -1;

		if ((prop = mnode->property (X_("x"))) != 0) {
			x = atoi (prop->value());
		}

		if ((prop = mnode->property (X_("y"))) != 0) {
			y = atoi (prop->value());
		} 

		if ((prop = mnode->property (X_("w"))) != 0) {
			w = atoi (prop->value());
		} 
		
		if ((prop = mnode->property (X_("h"))) != 0) {
			h = atoi (prop->value());
		}

		if (x >= 0 && y >= 0 && w >= 0 && h >= 0) {
			_main_window.set_position (Gtk::WIN_POS_NONE);
		}
		
		if (x >= 0 && y >= 0) {
			_main_window.move (x, y);
		}
		
		if (w > 0 && h > 0) {
			_main_window.set_default_size (w, h);
		}

		std::string current_tab;
		
		if ((prop = mnode->property (X_("current-tab"))) != 0) {
			current_tab = prop->value();
		} else {
			current_tab = "editor";
		}
		if (mixer && current_tab == "mixer") {
			_tabs.set_current_page (_tabs.page_num (mixer->contents()));
		} else if (rc_option_editor && current_tab == "preferences") {
			_tabs.set_current_page (_tabs.page_num (rc_option_editor->contents()));
		} else if (editor) {
			_tabs.set_current_page (_tabs.page_num (editor->contents()));
		}
	}
	
	_main_window.show_all ();
	setup_toplevel_window (_main_window, "", this);
	
	_tabs.signal_switch_page().connect (sigc::mem_fun (*this, &ARDOUR_UI::tabs_switch));
	_tabs.signal_page_removed().connect (sigc::mem_fun (*this, &ARDOUR_UI::tabs_page_removed));
	_tabs.signal_page_added().connect (sigc::mem_fun (*this, &ARDOUR_UI::tabs_page_added));

	/* It would be nice if Gtkmm had wrapped this rather than just
	 * deprecating the old set_window_creation_hook() method, but oh well...
	 */
	g_signal_connect (_tabs.gobj(), "create-window", (GCallback) ::tab_window_root_drop, this);

	return 0;
}