livetrax/gtk2_ardour/option_editor.cc

/*
    Copyright (C) 2001-2006 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.

    $Id$
*/

#include <pbd/whitespace.h>

#include <ardour/audio_library.h>
#include <ardour/session.h>
#include <ardour/audioengine.h>
#include <ardour/configuration.h>
#include <ardour/auditioner.h>
#include <ardour/destructive_filesource.h>
#include <ardour/crossfade.h>
#include <midi++/manager.h>
#include <gtkmm2ext/stop_signal.h>
#include <gtkmm2ext/utils.h>

#include "public_editor.h"
#include "mixer_ui.h"
#include "ardour_ui.h"
#include "io_selector.h"
#include "gain_meter.h"
#include "sfdb_ui.h"
#include "utils.h"
#include "editing.h"
#include "option_editor.h"

#include "i18n.h"

using namespace ARDOUR;
using namespace PBD;
using namespace Gtk;
using namespace Editing;
using namespace Gtkmm2ext;
using namespace std;

static vector<string> positional_sync_strings;

OptionEditor::OptionEditor (ARDOUR_UI& uip, PublicEditor& ed, Mixer_UI& mixui)
	: Dialog ("option editor"),
	  ui (uip),
	  editor (ed),
	  mixer (mixui),

	  /* Paths */
	  path_table (11, 2),
	  sfdb_path_view(),

	  /* Fades */

	  short_xfade_adjustment (0, 1.0, 500.0, 5.0, 100.0),
	  short_xfade_slider (short_xfade_adjustment),
	  destructo_xfade_adjustment (1.0, 1.0, 500.0, 1.0, 100.0),
	  destructo_xfade_slider (destructo_xfade_adjustment),

	  /* Sync */

	  smpte_offset_clock (X_("SMPTEOffsetClock"), true, true),
	  smpte_offset_negative_button (_("SMPTE offset is negative")),

	  /* MIDI */

	  /* Click */

	  click_table (2, 3),
	  click_browse_button (_("Browse")),
	  click_emphasis_browse_button (_("Browse")),

	  /* kbd/mouse */

	  keyboard_mouse_table (3, 4),
	  delete_button_adjustment (3, 1, 5),
	  delete_button_spin (delete_button_adjustment),
	  edit_button_adjustment (3, 1, 5),
	  edit_button_spin (edit_button_adjustment)
	  
{
	using namespace Notebook_Helpers;

	click_io_selector = 0;
	auditioner_io_selector = 0;
	session = 0;

	set_default_size (300, 300);
	set_title (_("ardour: options editor"));
	set_wmclass (_("ardour_option_editor"), "Ardour");

	set_name ("OptionsWindow");
	add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
	
	VBox *vbox = get_vbox();
	set_border_width (3);

	vbox->set_spacing (4);
	vbox->pack_start(notebook);

	signal_delete_event().connect (mem_fun(*this, &OptionEditor::wm_close));

	notebook.set_show_tabs (true);
	notebook.set_show_border (true);
	notebook.set_name ("OptionsNotebook");

	setup_sync_options();
	setup_path_options();
	setup_fade_options ();
	setup_keyboard_options ();
	setup_auditioner_editor ();

	notebook.pages().push_back (TabElem (sync_packer, _("Sync")));
	notebook.pages().push_back (TabElem (path_table, _("Paths/Files")));
	notebook.pages().push_back (TabElem (keyboard_mouse_table, _("Kbd/Mouse")));
	notebook.pages().push_back (TabElem (click_packer, _("Click")));
	notebook.pages().push_back (TabElem (audition_packer, _("Audition")));
	notebook.pages().push_back (TabElem (fade_packer, _("Layers & Fades")));

	if (!MIDI::Manager::instance()->get_midi_ports().empty()) {
		setup_midi_options ();
		notebook.pages().push_back (TabElem (midi_packer, _("MIDI")));
	}

	set_session (0);
	show_all_children();
}

void
OptionEditor::set_session (Session *s)
{
	clear_click_editor ();
	clear_auditioner_editor ();

	click_path_entry.set_text ("");
	click_emphasis_path_entry.set_text ("");
	session_raid_entry.set_text ("");

	click_path_entry.set_sensitive (false);
	click_emphasis_path_entry.set_sensitive (false);
	session_raid_entry.set_sensitive (false);

	short_xfade_slider.set_sensitive (false);
	smpte_offset_negative_button.set_sensitive (false);

	smpte_offset_clock.set_session (s);

	if ((session = s) == 0) {
		return;
	}

	click_path_entry.set_sensitive (true);
	click_emphasis_path_entry.set_sensitive (true);
	session_raid_entry.set_sensitive (true);
	short_xfade_slider.set_sensitive (true);
	smpte_offset_negative_button.set_sensitive (true);

	smpte_offset_clock.set_session (s);
	smpte_offset_clock.set (s->smpte_offset (), true);

	smpte_offset_negative_button.set_active (session->smpte_offset_negative());

	/* set up port assignments */

	std::map<MIDI::Port*,vector<RadioButton*> >::iterator res;

	if (session->mtc_port()) {
		if ((res = port_toggle_buttons.find (session->mtc_port())) != port_toggle_buttons.end()) {
			(*res).second[MtcIndex]->set_active (true);
		}
	} 

	if (session->mmc_port ()) {
		if ((res = port_toggle_buttons.find (session->mmc_port())) != port_toggle_buttons.end()) {
			(*res).second[MmcIndex]->set_active (true);
		} 
	}

	if (session->midi_port()) {
		if ((res = port_toggle_buttons.find (session->midi_port())) != port_toggle_buttons.end()) {
			(*res).second[MidiIndex]->set_active (true);
		}
	}

	setup_click_editor ();
	connect_audition_editor ();

	short_xfade_adjustment.set_value ((Crossfade::short_xfade_length() / (float) session->frame_rate()) * 1000.0);

	add_session_paths ();
}

OptionEditor::~OptionEditor ()
{
}

void
OptionEditor::setup_path_options()
{
	Gtk::Label* label;

	path_table.set_homogeneous (false);
	path_table.set_border_width (12);
	path_table.set_row_spacings (5);

	session_raid_entry.set_name ("OptionsEntry");

	session_raid_entry.signal_activate().connect (mem_fun(*this, &OptionEditor::raid_path_changed));

	label = manage(new Label(_("session RAID path")));
	label->set_name ("OptionsLabel");
	path_table.attach (*label, 0, 1, 0, 1, FILL|EXPAND, FILL);
	path_table.attach (session_raid_entry, 1, 3, 0, 1, Gtk::FILL|Gtk::EXPAND, FILL);

	label = manage(new Label(_("Soundfile Search Paths")));
	label->set_name("OptionsLabel");
	path_table.attach(*label, 0, 1, 2, 3, FILL|EXPAND, FILL);
	path_table.attach(sfdb_path_view, 1, 3, 2, 3, Gtk::FILL|Gtk::EXPAND, FILL);

	sfdb_path_view.set_paths(Library->get_paths());
	sfdb_path_view.PathsUpdated.connect (mem_fun(*this, &OptionEditor::sfdb_paths_changed));

	path_table.show_all();
}

void
OptionEditor::sfdb_paths_changed ()
{
	Library->set_paths (sfdb_path_view.get_paths());
}

void
OptionEditor::add_session_paths ()
{
	click_path_entry.set_sensitive (true);
	click_emphasis_path_entry.set_sensitive (true);
	session_raid_entry.set_sensitive (true);

	if (Config->get_click_sound().empty()) {
		click_path_entry.set_text (_("internal"));
	} else {
		click_path_entry.set_text (Config->get_click_sound());
	}

	if (Config->get_click_emphasis_sound().empty()) {
		click_emphasis_path_entry.set_text (_("internal"));
	} else {
		click_emphasis_path_entry.set_text (Config->get_click_emphasis_sound());
	}

	session_raid_entry.set_text(session->raid_path());
}

void
OptionEditor::setup_fade_options ()
{
	Gtk::HBox* hbox;
	
	Label* label = manage (new Label (_("Short crossfade length (msecs)")));
	label->set_name ("OptionsLabel");
	
	hbox = manage (new HBox);
	hbox->set_border_width (5);
	hbox->set_spacing (10);
	hbox->pack_start (*label, false, false);
	hbox->pack_start (short_xfade_slider, true, true);
	fade_packer.pack_start (*hbox, false, false);

	short_xfade_adjustment.signal_value_changed().connect (mem_fun(*this, &OptionEditor::short_xfade_adjustment_changed));

	label = manage (new Label (_("Destructive crossfade length (msecs)")));
	label->set_name ("OptionsLabel");
	
	hbox = manage (new HBox);
	hbox->set_border_width (5);
	hbox->set_spacing (10);
	hbox->pack_start (*label, false, false);
	hbox->pack_start (destructo_xfade_slider, true, true);
	fade_packer.pack_start (*hbox, false, false);
	
	destructo_xfade_adjustment.signal_value_changed().connect (mem_fun(*this, &OptionEditor::destructo_xfade_adjustment_changed));

	short_xfade_slider.set_update_policy (UPDATE_DISCONTINUOUS);
	destructo_xfade_slider.set_update_policy (UPDATE_DISCONTINUOUS);

	destructo_xfade_adjustment.set_value (Config->get_destructive_xfade_msecs());

	fade_packer.show_all ();
}

void
OptionEditor::short_xfade_adjustment_changed ()
{
	if (session) {
		float val = short_xfade_adjustment.get_value();
		
		/* val is in msecs */
		
		Crossfade::set_short_xfade_length ((jack_nframes_t) floor (session->frame_rate() * (val / 1000.0)));
	}
}

void
OptionEditor::destructo_xfade_adjustment_changed ()
{
	float val = destructo_xfade_adjustment.get_value();

	/* val is in msecs */
	
	Config->set_destructive_xfade_msecs ((uint32_t) floor (val));

	if (session) {
		DestructiveFileSource::setup_standard_crossfades (session->frame_rate());
	} 
}

void
OptionEditor::setup_sync_options ()
{
	HBox* hbox;
	vector<string> dumb;

	smpte_offset_clock.set_mode (AudioClock::SMPTE);
	smpte_offset_clock.ValueChanged.connect (mem_fun(*this, &OptionEditor::smpte_offset_chosen));
	
	smpte_offset_negative_button.set_name ("OptionEditorToggleButton");

	smpte_offset_negative_button.unset_flags (Gtk::CAN_FOCUS);

	Label *smpte_offset_label = manage (new Label (_("SMPTE Offset")));
	smpte_offset_label->set_name("OptionsLabel");
	
	hbox = manage (new HBox);
	hbox->set_border_width (5);
	hbox->set_spacing (10);
	hbox->pack_start (*smpte_offset_label, false, false);
	hbox->pack_start (smpte_offset_clock, false, false);
	hbox->pack_start (smpte_offset_negative_button, false, false);

	sync_packer.pack_start (*hbox, false, false);

	smpte_offset_negative_button.signal_clicked().connect (mem_fun(*this, &OptionEditor::smpte_offset_negative_clicked));
}

void
OptionEditor::smpte_offset_negative_clicked ()
{
	if (session) {
		session->set_smpte_offset_negative (smpte_offset_negative_button.get_active());
	}
}

void
OptionEditor::smpte_offset_chosen()
{
	if (session) {
		jack_nframes_t frames = smpte_offset_clock.current_duration();
		session->set_smpte_offset (frames);
	}
}


void
OptionEditor::setup_midi_options ()
{
	HBox* hbox;
	MIDI::Manager::PortMap::const_iterator i;
	const MIDI::Manager::PortMap& ports = MIDI::Manager::instance()->get_midi_ports();
	int n;
	ToggleButton* tb;
	RadioButton* rb;

	Gtk::Table* table = manage (new Table (ports.size() + 4, 9));

	table->set_row_spacings (6);
	table->set_col_spacings (10);

	table->attach (*(manage (new Label (X_("Port")))), 0, 1, 0, 1);
	table->attach (*(manage (new Label (X_("Offline")))), 1, 2, 0, 1);
	table->attach (*(manage (new Label (X_("Trace\nInput")))), 2, 3, 0, 1);
	table->attach (*(manage (new Label (X_("Trace\nOutput")))), 3, 4, 0, 1);
	table->attach (*(manage (new Label (X_("MTC")))), 4, 5, 0, 1);
	table->attach (*(manage (new Label (X_("MMC")))), 6, 7, 0, 1);
	table->attach (*(manage (new Label (X_("MIDI Parameter\nControl")))), 8, 9, 0, 1);

	table->attach (*(manage (new HSeparator())), 0, 9, 1, 2);
	table->attach (*(manage (new VSeparator())), 5, 6, 0, 8);
	table->attach (*(manage (new VSeparator())), 7, 8, 0, 8);
	
	for (n = 0, i = ports.begin(); i != ports.end(); ++n, ++i) {

		pair<MIDI::Port*,vector<RadioButton*> > newpair;

		newpair.first = i->second;

		table->attach (*(manage (new Label (i->first))), 0, 1, n+2, n+3,FILL|EXPAND, FILL );
		tb = manage (new ToggleButton (_("online")));
		tb->set_name ("OptionEditorToggleButton");

		/* remember, we have to handle the i18n case where the relative
		   lengths of the strings in language N is different than in english.
		*/

		if (strlen (_("offline")) > strlen (_("online"))) {
			set_size_request_to_display_given_text (*tb, _("offline"), 15, 12);
		} else {
			set_size_request_to_display_given_text (*tb, _("online"), 15, 12);
		}

		tb->set_active (!(*i).second->input()->offline());
		tb->signal_button_press_event().connect (bind (mem_fun(*this, &OptionEditor::port_online_toggled), (*i).second, tb));
		(*i).second->input()->OfflineStatusChanged.connect (bind (mem_fun(*this, &OptionEditor::map_port_online), (*i).second, tb));
		table->attach (*tb, 1, 2, n+2, n+3, FILL|EXPAND, FILL);

		tb = manage (new ToggleButton ());
		tb->set_name ("OptionEditorToggleButton");
		tb->signal_button_press_event().connect (bind (mem_fun(*this, &OptionEditor::port_trace_in_toggled), (*i).second, tb));
		tb->set_size_request (10, 10);
		table->attach (*tb, 2, 3, n+2, n+3, FILL|EXPAND, FILL);

		tb = manage (new ToggleButton ());
		tb->set_name ("OptionEditorToggleButton");
		tb->signal_button_press_event().connect (bind (mem_fun(*this, &OptionEditor::port_trace_out_toggled), (*i).second, tb));
		tb->set_size_request (10, 10);
		table->attach (*tb, 3, 4, n+2, n+3, FILL|EXPAND, FILL);

		rb = manage (new RadioButton ());
		newpair.second.push_back (rb);
		rb->set_name ("OptionEditorToggleButton");
		if (n == 0) {
			mtc_button_group = rb->get_group();
		} else {
			rb->set_group (mtc_button_group);

		}
		table->attach (*rb, 4, 5, n+2, n+3, FILL|EXPAND, FILL);
		rb->signal_toggled().connect (bind (mem_fun(*this, &OptionEditor::mtc_port_chosen), (*i).second, rb));

		if (Config->get_mtc_port_name() == i->first) {
			rb->set_active (true);
		}
		
		rb = manage (new RadioButton ());
		newpair.second.push_back (rb);
		rb->set_name ("OptionEditorToggleButton");
		if (n == 0) {
			mmc_button_group = rb->get_group();
		} else {
			rb->set_group (mmc_button_group);
		}
		table->attach (*rb, 6, 7, n+2, n+3, FILL|EXPAND, FILL);
		rb->signal_toggled().connect (bind (mem_fun(*this, &OptionEditor::mmc_port_chosen), (*i).second, rb));

		if (Config->get_mmc_port_name() == i->first) {
			rb->set_active (true);
		}

		rb = manage (new RadioButton ());
		newpair.second.push_back (rb);
		rb->set_name ("OptionEditorToggleButton");
		if (n == 0) {
			midi_button_group = rb->get_group();
		} else {
			rb->set_group (midi_button_group);
		}
		table->attach (*rb, 8, 9, n+2, n+3, FILL|EXPAND, FILL);
		rb->signal_toggled().connect (bind (mem_fun(*this, &OptionEditor::midi_port_chosen), (*i).second, rb));

		if (Config->get_midi_port_name() == i->first) {
			rb->set_active (true);
		}
		
		port_toggle_buttons.insert (newpair);
	}

	table->show_all ();

	hbox = manage (new HBox);
	hbox->set_border_width (6);
	hbox->pack_start (*table, true, false);
	midi_packer.pack_start (*hbox, false, false);
}

void
OptionEditor::mtc_port_chosen (MIDI::Port *port, Gtk::RadioButton* rb) 
{
	if (session) {
		if (rb->get_active()) {
			cerr << "Activating MTC port " << port->name() << endl;
			if (port) {
				session->set_mtc_port (port->name());
				Config->set_mtc_port_name (port->name());
			} else {
				session->set_mtc_port ("");
			}
			rb->set_active (true);
		}
	}
}

void
OptionEditor::mmc_port_chosen (MIDI::Port* port, Gtk::RadioButton* rb)
{
	if (session) {
		if (rb->get_active()) {
			cerr << "Activating MMC port " << port->name() << endl;
			if (port) {
				session->set_mmc_port (port->name());
				Config->set_mtc_port_name (port->name());
			} else {
				session->set_mmc_port ("");
			}
			rb->set_active (true);
		}
	}
}

void
OptionEditor::midi_port_chosen (MIDI::Port* port, Gtk::RadioButton* rb)
{
	if (session) {
		if (rb->get_active()) {
			cerr << "Activating MIDI port " << port->name() << endl;
			if (port) {
				session->set_midi_port (port->name());
				Config->set_midi_port_name (port->name());
			} else {
				session->set_midi_port ("");
			}
			rb->set_active (true);
		}
	}
}

gint
OptionEditor::port_online_toggled (GdkEventButton* ev, MIDI::Port* port, ToggleButton* tb)
{
	bool wanted = tb->get_active(); /* it hasn't changed at this point */

	if (wanted != port->input()->offline()) {
		port->input()->set_offline (wanted);
	} 
	return stop_signal (*tb, "button_press_event");
}

void
OptionEditor::map_port_online (MIDI::Port* port, ToggleButton* tb)
{
	if (port->input()->offline()) {
		tb->set_label (_("offline"));
		tb->set_active (false);
	} else {
		tb->set_label (_("online"));
		tb->set_active (true);
	}
}

gint
OptionEditor::port_trace_in_toggled (GdkEventButton* ev, MIDI::Port* port, ToggleButton* tb)
{
	/* XXX not very good MVC style here */

	port->input()->trace (!tb->get_active(), &cerr, string (port->name()) + string (" input: "));
	tb->set_active (!tb->get_active());
	return stop_signal (*tb, "button_press_event");
}

gint
OptionEditor::port_trace_out_toggled (GdkEventButton* ev,MIDI::Port* port, ToggleButton* tb)
{
	/* XXX not very good MVC style here */

	port->output()->trace (!tb->get_active(), &cerr, string (port->name()) + string (" output: "));
	tb->set_active (!tb->get_active());
	return stop_signal (*tb, "button_press_event");
}

void
OptionEditor::save ()
{
	/* XXX a bit odd that we save the entire session state here */

	ui.save_state ("");
}

gint
OptionEditor::wm_close (GdkEventAny *ev)
{
	save ();
	hide ();
	return TRUE;
}

void
OptionEditor::raid_path_changed ()
{
	if (session) {
		Config->set_raid_path (session_raid_entry.get_text());
	}
}

void
OptionEditor::click_browse_clicked ()
{
	SoundFileChooser sfdb (_("Choose Click"), session);
	
	int result = sfdb.run ();

	if (result == Gtk::RESPONSE_OK) {
		click_chosen(sfdb.get_filename());
	}
}

void
OptionEditor::click_chosen (const string & path)
{
	click_path_entry.set_text (path);
	click_sound_changed ();
}

void
OptionEditor::click_emphasis_browse_clicked ()
{
	SoundFileChooser sfdb (_("Choose Click Emphasis"), session);

	int result = sfdb.run ();

	if (result == Gtk::RESPONSE_OK) {
		click_emphasis_chosen (sfdb.get_filename());
	}
}

void
OptionEditor::click_emphasis_chosen (const string & path)
{	
	click_emphasis_path_entry.set_text (path);
	click_emphasis_sound_changed ();
}

void
OptionEditor::click_sound_changed ()
{
	if (session) {
		string path = click_path_entry.get_text();

		if (path == Config->get_click_sound()) {
			return;
		}

		if (path.empty()) {

			Config->set_click_sound ("");

		} else {

			strip_whitespace_edges (path);
			
			if (path == _("internal")) {
				Config->set_click_sound ("");
			} else {
				Config->set_click_sound (path);
			}
		}
	}
}

void
OptionEditor::click_emphasis_sound_changed ()
{
	if (session) {
		string path = click_emphasis_path_entry.get_text();

		if (path == Config->get_click_emphasis_sound()) {
			return;
		}

		if (path.empty()) {

			Config->set_click_emphasis_sound ("");

		} else {

			strip_whitespace_edges (path);

			if (path == _("internal")) {
				Config->set_click_emphasis_sound ("");
			} else {
				Config->set_click_emphasis_sound (path);
			}
		}
	}
}

void
OptionEditor::clear_click_editor ()
{
	if (click_io_selector) {
		click_packer.remove (*click_io_selector);
		click_packer.remove (*click_gpm);
		delete click_io_selector;
		delete click_gpm;
		click_io_selector = 0;
		click_gpm = 0;
	}
}

void
OptionEditor::setup_click_editor ()
{
	Label* label;
	HBox* hpacker = manage (new HBox);

	click_path_entry.set_sensitive (true);
	click_emphasis_path_entry.set_sensitive (true);

	click_path_entry.set_name ("OptionsEntry");
	click_emphasis_path_entry.set_name ("OptionsEntry");
	
	click_path_entry.signal_activate().connect (mem_fun(*this, &OptionEditor::click_sound_changed));
	click_emphasis_path_entry.signal_activate().connect (mem_fun(*this, &OptionEditor::click_emphasis_sound_changed));

	click_path_entry.signal_focus_out_event().connect (bind (mem_fun(*this, &OptionEditor::focus_out_event_handler), &OptionEditor::click_sound_changed));
	click_emphasis_path_entry.signal_focus_out_event().connect (bind (mem_fun(*this, &OptionEditor::focus_out_event_handler), &OptionEditor::click_emphasis_sound_changed));

	click_browse_button.set_name ("EditorGTKButton");
	click_emphasis_browse_button.set_name ("EditorGTKButton");
	click_browse_button.signal_clicked().connect (mem_fun(*this, &OptionEditor::click_browse_clicked));
	click_emphasis_browse_button.signal_clicked().connect (mem_fun(*this, &OptionEditor::click_emphasis_browse_clicked));

	click_packer.set_border_width (12);
	click_packer.set_spacing (5);

	click_io_selector = new IOSelector (*session, session->click_io(), false);
	click_gpm = new GainMeter (session->click_io(), *session);

	click_table.set_col_spacings (10);
	
	label = manage(new Label(_("Click audio file")));
	label->set_name ("OptionsLabel");
	click_table.attach (*label, 0, 1, 0, 1, FILL|EXPAND, FILL);
	click_table.attach (click_path_entry, 1, 2, 0, 1, Gtk::FILL|Gtk::EXPAND, FILL);
	click_table.attach (click_browse_button, 2, 3, 0, 1, FILL|EXPAND, FILL);
	
	label = manage(new Label(_("Click emphasis audiofile")));
	label->set_name ("OptionsLabel");
	click_table.attach (*label, 0, 1, 1, 2, FILL|EXPAND, FILL);
	click_table.attach (click_emphasis_path_entry, 1, 2, 1, 2, Gtk::FILL|Gtk::EXPAND, FILL);
	click_table.attach (click_emphasis_browse_button, 2, 3, 1, 2, FILL|EXPAND, FILL);

	hpacker->set_spacing (10);
	hpacker->pack_start (*click_io_selector, false, false);
	hpacker->pack_start (*click_gpm, false, false);

	click_packer.pack_start (click_table, false, false);
	click_packer.pack_start (*hpacker, false, false);

	click_packer.show_all ();
}

void
OptionEditor::clear_auditioner_editor ()
{
	if (auditioner_io_selector) {
		audition_hpacker.remove (*auditioner_io_selector);
		audition_hpacker.remove (*auditioner_gpm);
		delete auditioner_io_selector;
		delete auditioner_gpm;
		auditioner_io_selector = 0;
		auditioner_gpm = 0;
	}
}

void
OptionEditor::setup_auditioner_editor ()
{
	audition_packer.set_border_width (12);
	audition_packer.set_spacing (5);
	audition_hpacker.set_spacing (10);

	audition_label.set_name ("OptionEditorAuditionerLabel");
	audition_label.set_text (_("The auditioner is a dedicated mixer strip used\n"
				   "for listening to specific regions outside the context\n"
				   "of the overall mix. It can be connected just like any\n"
				   "other mixer strip."));
	
	audition_packer.pack_start (audition_label, false, false, 10);
	audition_packer.pack_start (audition_hpacker, false, false);
}

void
OptionEditor::connect_audition_editor ()
{
	auditioner_io_selector = new IOSelector (*session, session->the_auditioner(), false);
	auditioner_gpm = new GainMeter (session->the_auditioner(), *session);

	audition_hpacker.pack_start (*auditioner_io_selector, false, false);
	audition_hpacker.pack_start (*auditioner_gpm, false, false);

	auditioner_io_selector->show_all ();
	auditioner_gpm->show_all ();
}

bool
OptionEditor::focus_out_event_handler (GdkEventFocus* ev, void (OptionEditor::*pmf)()) 
{
	(this->*pmf)();
	return false;
}

static const struct {
    const char *name;
    guint   modifier;
} modifiers[] = {
	{ "Shift", GDK_SHIFT_MASK },
	{ "Control", GDK_CONTROL_MASK },
	{ "Alt (Mod1)", GDK_MOD1_MASK },
	{ "Control-Shift", GDK_CONTROL_MASK|GDK_SHIFT_MASK },
	{ "Control-Alt", GDK_CONTROL_MASK|GDK_MOD1_MASK },
	{ "Shift-Alt", GDK_SHIFT_MASK|GDK_MOD1_MASK },
	{ "Control-Shift-Alt", GDK_CONTROL_MASK|GDK_SHIFT_MASK|GDK_MOD1_MASK },
	{ "Mod2", GDK_MOD2_MASK },
	{ "Mod3", GDK_MOD3_MASK },
	{ "Mod4", GDK_MOD4_MASK },
	{ "Mod5", GDK_MOD5_MASK },
	{ 0, 0 }
};

void
OptionEditor::setup_keyboard_options ()
{
	vector<string> dumb;
	Label* label;

	keyboard_mouse_table.set_border_width (12);
	keyboard_mouse_table.set_row_spacings (5);
	keyboard_mouse_table.set_col_spacings (5);

	/* internationalize and prepare for use with combos */

	for (int i = 0; modifiers[i].name; ++i) {
		dumb.push_back (_(modifiers[i].name));
	}

	set_popdown_strings (edit_modifier_combo, dumb);
	edit_modifier_combo.signal_changed().connect (mem_fun(*this, &OptionEditor::edit_modifier_chosen));

	for (int x = 0; modifiers[x].name; ++x) {
		if (modifiers[x].modifier == Keyboard::edit_modifier ()) {
			edit_modifier_combo.set_active_text (_(modifiers[x].name));
			break;
		}
	}

	label = manage (new Label (_("Edit using")));
	label->set_name ("OptionsLabel");
	label->set_alignment (1.0, 0.5);
		
	keyboard_mouse_table.attach (*label, 0, 1, 0, 1, Gtk::FILL|Gtk::EXPAND, FILL);
	keyboard_mouse_table.attach (edit_modifier_combo, 1, 2, 0, 1, Gtk::FILL|Gtk::EXPAND, FILL);

	label = manage (new Label (_("+ button")));
	label->set_name ("OptionsLabel");
	
	keyboard_mouse_table.attach (*label, 3, 4, 0, 1, Gtk::FILL|Gtk::EXPAND, FILL);
	keyboard_mouse_table.attach (edit_button_spin, 4, 5, 0, 1, Gtk::FILL|Gtk::EXPAND, FILL);

	edit_button_spin.set_name ("OptionsEntry");
	edit_button_adjustment.set_value (Keyboard::edit_button());
	edit_button_adjustment.signal_value_changed().connect (mem_fun(*this, &OptionEditor::edit_button_changed));

	set_popdown_strings (delete_modifier_combo, dumb);
	delete_modifier_combo.signal_changed().connect (mem_fun(*this, &OptionEditor::delete_modifier_chosen));

	for (int x = 0; modifiers[x].name; ++x) {
		if (modifiers[x].modifier == Keyboard::delete_modifier ()) {
			delete_modifier_combo.set_active_text (_(modifiers[x].name));
			break;
		}
	}

	label = manage (new Label (_("Delete using")));
	label->set_name ("OptionsLabel");
	label->set_alignment (1.0, 0.5);
		
	keyboard_mouse_table.attach (*label, 0, 1, 1, 2, Gtk::FILL|Gtk::EXPAND, FILL);
	keyboard_mouse_table.attach (delete_modifier_combo, 1, 2, 1, 2, Gtk::FILL|Gtk::EXPAND, FILL);

	label = manage (new Label (_("+ button")));
	label->set_name ("OptionsLabel");

	keyboard_mouse_table.attach (*label, 3, 4, 1, 2, Gtk::FILL|Gtk::EXPAND, FILL);
	keyboard_mouse_table.attach (delete_button_spin, 4, 5, 1, 2, Gtk::FILL|Gtk::EXPAND, FILL);

	delete_button_spin.set_name ("OptionsEntry");
	delete_button_adjustment.set_value (Keyboard::delete_button());
	delete_button_adjustment.signal_value_changed().connect (mem_fun(*this, &OptionEditor::delete_button_changed));

	set_popdown_strings (snap_modifier_combo, dumb);
	snap_modifier_combo.signal_changed().connect (mem_fun(*this, &OptionEditor::snap_modifier_chosen));
	
	for (int x = 0; modifiers[x].name; ++x) {
		if (modifiers[x].modifier == (guint) Keyboard::snap_modifier ()) {
			snap_modifier_combo.set_active_text (_(modifiers[x].name));
			break;
		}
	}

	label = manage (new Label (_("Ignore snap using")));
	label->set_name ("OptionsLabel");
	label->set_alignment (1.0, 0.5);
	
	keyboard_mouse_table.attach (*label, 0, 1, 2, 3, Gtk::FILL|Gtk::EXPAND, FILL);
	keyboard_mouse_table.attach (snap_modifier_combo, 1, 2, 2, 3, Gtk::FILL|Gtk::EXPAND, FILL);
}

void
OptionEditor::edit_modifier_chosen ()
{
	string txt;
	
	txt = edit_modifier_combo.get_active_text();

	for (int i = 0; modifiers[i].name; ++i) {
		if (txt == _(modifiers[i].name)) {
			Keyboard::set_edit_modifier (modifiers[i].modifier);
			break;
		}
	}
}

void
OptionEditor::delete_modifier_chosen ()
{
	string txt;
	
	txt = delete_modifier_combo.get_active_text();

	for (int i = 0; modifiers[i].name; ++i) {
		if (txt == _(modifiers[i].name)) {
			Keyboard::set_delete_modifier (modifiers[i].modifier);
			break;
		}
	}
}

void
OptionEditor::snap_modifier_chosen ()
{
	string txt;
	
	txt = snap_modifier_combo.get_active_text();

	for (int i = 0; modifiers[i].name; ++i) {
		if (txt == _(modifiers[i].name)) {
			Keyboard::set_snap_modifier (modifiers[i].modifier);
			break;
		}
	}
}

void
OptionEditor::delete_button_changed ()
{
	Keyboard::set_delete_button ((guint) delete_button_adjustment.get_value());
}

void
OptionEditor::edit_button_changed ()
{
	Keyboard::set_edit_button ((guint) edit_button_adjustment.get_value());
}

void
OptionEditor::fixup_combo_size (Gtk::ComboBoxText& combo, vector<string>& strings)
{
	/* find the widest string */

	string::size_type maxlen = 0;
	string maxstring;

	for (vector<string>::iterator i = strings.begin(); i != strings.end(); ++i) {
		string::size_type l;

		if ((l = (*i).length()) > maxlen) {
			maxlen = l;
			maxstring = *i;
		}
	}

	/* try to include ascenders and descenders */

	if (maxstring.length() > 2) {
		maxstring[0] = 'g';
		maxstring[1] = 'l';
	}

	const guint32 FUDGE = 10; // Combo's are stupid - they steal space from the entry for the button

	set_size_request_to_display_given_text (combo, maxstring.c_str(), 10 + FUDGE, 10);
}