livetrax/gtk2_ardour/sfdb_ui.cc

/*
    Copyright (C) 2005-2006 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.

*/

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

#include <map>
#include <cerrno>
#include <sstream>

#include <unistd.h>
#include <sys/stat.h>
#include <sys/param.h>

#include <gtkmm/box.h>
#include <gtkmm/stock.h>
#include <glibmm/fileutils.h>

#include "pbd/convert.h"
#include "pbd/tokenizer.h"
#include "pbd/enumwriter.h"
#include "pbd/pthread_utils.h"
#include "pbd/xml++.h"

#include <gtkmm2ext/utils.h>

#include "evoral/SMF.hpp"

#include "ardour/audio_library.h"
#include "ardour/auditioner.h"
#include "ardour/audioregion.h"
#include "ardour/audiofilesource.h"
#include "ardour/smf_source.h"
#include "ardour/region_factory.h"
#include "ardour/source_factory.h"
#include "ardour/session.h"
#include "ardour/session_directory.h"

#include "ardour_ui.h"
#include "editing.h"
#include "gui_thread.h"
#include "prompter.h"
#include "sfdb_ui.h"
#include "editing.h"
#include "utils.h"
#include "gain_meter.h"
#include "main_clock.h"
#include "public_editor.h"

#ifdef FREESOUND
#include "sfdb_freesound_mootcher.h"
#endif

#include "i18n.h"

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

using std::string;

string SoundFileBrowser::persistent_folder;
typedef TreeView::Selection::ListHandle_Path ListPath;

static ImportMode
string2importmode (string str)
{
	if (str == _("as new tracks")) {
		return ImportAsTrack;
	} else if (str == _("to selected tracks")) {
		return ImportToTrack;
	} else if (str == _("to region list")) {
		return ImportAsRegion;
	} else if (str == _("as new tape tracks")) {
		return ImportAsTapeTrack;
	}

	warning << string_compose (_("programming error: unknown import mode string %1"), str) << endmsg;

	return ImportAsTrack;
}

static string
importmode2string (ImportMode mode)
{
	switch (mode) {
	case ImportAsTrack:
		return _("as new tracks");
	case ImportToTrack:
		return _("to selected tracks");
	case ImportAsRegion:
		return _("to region list");
	case ImportAsTapeTrack:
		return _("as new tape tracks");
	}
	/*NOTREACHED*/
	return _("as new tracks");
}

SoundFileBox::SoundFileBox (bool persistent)
	: table (6, 2),
	  length_clock ("sfboxLengthClock", !persistent, "", false, false, true, false),
	  timecode_clock ("sfboxTimecodeClock", !persistent, "", false, false, false, false),
	  main_box (false, 6),
	  autoplay_btn (_("Auto-play"))

{
	set_name (X_("SoundFileBox"));
	set_size_request (300, -1);

	preview_label.set_markup (_("<b>Sound File Information</b>"));

	border_frame.set_label_widget (preview_label);
	border_frame.add (main_box);

	pack_start (border_frame, true, true);
	set_border_width (6);

	main_box.set_border_width (6);

	length.set_text (_("Length:"));
	length.set_alignment (1, 0.5);
	timecode.set_text (_("Timestamp:"));
	timecode.set_alignment (1, 0.5);
	format.set_text (_("Format:"));
	format.set_alignment (1, 0.5);
	channels.set_text (_("Channels:"));
	channels.set_alignment (1, 0.5);
	samplerate.set_text (_("Sample rate:"));
	samplerate.set_alignment (1, 0.5);

        preview_label.set_max_width_chars (50);
	preview_label.set_ellipsize (Pango::ELLIPSIZE_END);

	format_text.set_max_width_chars (20);
	format_text.set_ellipsize (Pango::ELLIPSIZE_END);
	format_text.set_alignment (0, 1);

	table.set_col_spacings (6);
	table.set_homogeneous (false);
	table.set_row_spacings (6);

	table.attach (channels, 0, 1, 0, 1, FILL, FILL);
	table.attach (samplerate, 0, 1, 1, 2, FILL, FILL);
	table.attach (format, 0, 1, 2, 4, FILL, FILL);
	table.attach (length, 0, 1, 4, 5, FILL, FILL);
	table.attach (timecode, 0, 1, 5, 6, FILL, FILL);

	table.attach (channels_value, 1, 2, 0, 1, FILL, FILL);
	table.attach (samplerate_value, 1, 2, 1, 2, FILL, FILL);
	table.attach (format_text, 1, 2, 2, 4, FILL, FILL);
	table.attach (length_clock, 1, 2, 4, 5, FILL, FILL);
	table.attach (timecode_clock, 1, 2, 5, 6, FILL, FILL);

	length_clock.set_mode (ARDOUR_UI::instance()->secondary_clock->mode());
	timecode_clock.set_mode (AudioClock::Timecode);

	main_box.pack_start (table, false, false);

	tags_entry.set_editable (true);
	tags_entry.set_wrap_mode(Gtk::WRAP_WORD);
	tags_entry.signal_focus_out_event().connect (sigc::mem_fun (*this, &SoundFileBox::tags_entry_left));

	Label* label = manage (new Label (_("Tags:")));
	label->set_alignment (0.0f, 0.5f);
	main_box.pack_start (*label, false, false);
	main_box.pack_start (tags_entry, true, true);

	main_box.pack_start (bottom_box, false, false);

	play_btn.set_image (*(manage (new Image (Stock::MEDIA_PLAY, ICON_SIZE_BUTTON))));
//	play_btn.set_label (_("Play"));

	stop_btn.set_image (*(manage (new Image (Stock::MEDIA_STOP, ICON_SIZE_BUTTON))));
//	stop_btn.set_label (_("Stop"));

	bottom_box.set_homogeneous (false);
	bottom_box.set_spacing (6);
	bottom_box.pack_start(play_btn, true, true);
	bottom_box.pack_start(stop_btn, true, true);
	bottom_box.pack_start(autoplay_btn, false, false);

	play_btn.signal_clicked().connect (sigc::mem_fun (*this, &SoundFileBox::audition));
	stop_btn.signal_clicked().connect (sigc::mem_fun (*this, &SoundFileBox::stop_audition));

	channels_value.set_alignment (0.0f, 0.5f);
	samplerate_value.set_alignment (0.0f, 0.5f);
}

void
SoundFileBox::set_session(Session* s)
{
	SessionHandlePtr::set_session (s);

	length_clock.set_session (s);
	timecode_clock.set_session (s);

	if (!_session) {
		play_btn.set_sensitive (false);
		stop_btn.set_sensitive (false);
	}
}

bool
SoundFileBox::setup_labels (const string& filename)
{
	if (!path.empty()) {
		// save existing tags
		tags_changed ();
	}

	path = filename;

	string error_msg;

	if(!AudioFileSource::get_soundfile_info (filename, sf_info, error_msg)) {

		preview_label.set_markup (_("<b>Sound File Information</b>"));
		format_text.set_text ("");
		channels_value.set_text ("");
		samplerate_value.set_text ("");
		tags_entry.get_buffer()->set_text ("");

		length_clock.set (0);
		timecode_clock.set (0);

		tags_entry.set_sensitive (false);
		play_btn.set_sensitive (false);

		return false;
	}

	preview_label.set_markup (string_compose ("<b>%1</b>", Glib::Markup::escape_text (Glib::path_get_basename (filename))));
	std::string n = sf_info.format_name;
	if (n.substr (0, 8) == X_("Format: ")) {
		n = n.substr (8);
	}
	format_text.set_text (n);
	channels_value.set_text (to_string (sf_info.channels, std::dec));

	if (_session && sf_info.samplerate != _session->frame_rate()) {
		samplerate.set_markup (string_compose ("<b>%1</b>", _("Sample rate:")));
		samplerate_value.set_markup (string_compose (X_("<b>%1 Hz</b>"), sf_info.samplerate));
		samplerate_value.set_name ("NewSessionSR1Label");
		samplerate.set_name ("NewSessionSR1Label");
	} else {
		samplerate.set_text (_("Sample rate:"));
		samplerate_value.set_text (string_compose (X_("%1 Hz"), sf_info.samplerate));
		samplerate_value.set_name ("NewSessionSR2Label");
		samplerate.set_name ("NewSessionSR2Label");
	}

	framecnt_t const nfr = _session ? _session->nominal_frame_rate() : 25;
	double src_coef = (double) nfr / sf_info.samplerate;

	length_clock.set (sf_info.length * src_coef + 0.5, true);
	timecode_clock.set (sf_info.timecode * src_coef + 0.5, true);

	// this is a hack that is fixed in trunk, i think (august 26th, 2007)

	vector<string> tags = Library->get_tags (string ("//") + filename);

	stringstream tag_string;
	for (vector<string>::iterator i = tags.begin(); i != tags.end(); ++i) {
		if (i != tags.begin()) {
			tag_string << ", ";
		}
		tag_string << *i;
	}
	tags_entry.get_buffer()->set_text (tag_string.str());

	tags_entry.set_sensitive (true);
	if (_session) {
		play_btn.set_sensitive (true);
	}

	return true;
}

bool
SoundFileBox::autoplay() const
{
	return autoplay_btn.get_active();
}

bool
SoundFileBox::audition_oneshot()
{
	audition ();
	return false;
}

void
SoundFileBox::audition ()
{
	if (!_session) {
		return;
	}

	if (SMFSource::safe_midi_file_extension (path)) {
		error << _("Auditioning of MIDI files is not yet supported") << endmsg;
		return;
	}

	_session->cancel_audition();

	if (!Glib::file_test (path, Glib::FILE_TEST_EXISTS)) {
		warning << string_compose(_("Could not read file: %1 (%2)."), path, strerror(errno)) << endmsg;
		return;
	}

	boost::shared_ptr<Region> r;
	SourceList srclist;
	boost::shared_ptr<AudioFileSource> afs;
	bool old_sbp = AudioSource::get_build_peakfiles ();

	/* don't even think of building peakfiles for these files */

	AudioSource::set_build_peakfiles (false);

	for (int n = 0; n < sf_info.channels; ++n) {
		try {
			afs = boost::dynamic_pointer_cast<AudioFileSource> (
				SourceFactory::createExternal (DataType::AUDIO, *_session,
							       path, n,
							       Source::Flag (0), false));
			
			srclist.push_back(afs);

		} catch (failed_constructor& err) {
			error << _("Could not access soundfile: ") << path << endmsg;
			AudioSource::set_build_peakfiles (old_sbp);
			return;
		}
	}

	AudioSource::set_build_peakfiles (old_sbp);

	if (srclist.empty()) {
		return;
	}

	afs = boost::dynamic_pointer_cast<AudioFileSource> (srclist[0]);
	string rname = region_name_from_path (afs->path(), false);

	PropertyList plist;

	plist.add (ARDOUR::Properties::start, 0);
	plist.add (ARDOUR::Properties::length, srclist[0]->length(srclist[0]->timeline_position()));
	plist.add (ARDOUR::Properties::name, rname);
	plist.add (ARDOUR::Properties::layer, 0);

	r = boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (srclist, plist, false));

	_session->audition_region(r);
}

void
SoundFileBox::stop_audition ()
{
	if (_session) {
		_session->cancel_audition();
	}
}

bool
SoundFileBox::tags_entry_left (GdkEventFocus *)
{
	tags_changed ();
	return false;
}

void
SoundFileBox::tags_changed ()
{
	string tag_string = tags_entry.get_buffer()->get_text ();

	if (tag_string.empty()) {
		return;
	}

	vector<string> tags;

	if (!PBD::tokenize (tag_string, string(",\n"), std::back_inserter (tags), true)) {
		warning << _("SoundFileBox: Could not tokenize string: ") << tag_string << endmsg;
		return;
	}

	save_tags (tags);
}

void
SoundFileBox::save_tags (const vector<string>& tags)
{
	Library->set_tags (string ("//") + path, tags);
	Library->save_changes ();
}

SoundFileBrowser::SoundFileBrowser (string title, ARDOUR::Session* s, bool persistent)
	: ArdourWindow (title)
	, found_list (ListStore::create(found_list_columns))
	, freesound_list (ListStore::create(freesound_list_columns))
	, chooser (FILE_CHOOSER_ACTION_OPEN)
	, preview (persistent)
	, found_search_btn (_("Search"))
	, found_list_view (found_list)
	, freesound_search_btn (_("Search"))
	, freesound_list_view (freesound_list)
	, resetting_ourselves (false)
	, matches (0)
	, _status (0)
	, _done (false)
	, ok_button (Stock::OK)
	, cancel_button (Stock::CANCEL)
	, apply_button (Stock::APPLY)
	, gm (0)
{

#ifdef GTKOSX
        chooser.add_shortcut_folder_uri("file:///Library/GarageBand/Apple Loops");
        chooser.add_shortcut_folder_uri("file:///Library/Audio/Apple Loops");
        chooser.add_shortcut_folder_uri("file:///Library/Application Support/GarageBand/Instrument Library/Sampler/Sampler Files");
        chooser.add_shortcut_folder_uri("file:///Volumes");
#endif

	//add the file chooser

	chooser.set_border_width (12);
	
	audio_and_midi_filter.add_custom (FILE_FILTER_FILENAME, sigc::mem_fun (*this, &SoundFileBrowser::on_audio_and_midi_filter));
	audio_and_midi_filter.set_name (_("Audio and MIDI files"));
	
	audio_filter.add_custom (FILE_FILTER_FILENAME, sigc::mem_fun(*this, &SoundFileBrowser::on_audio_filter));
	audio_filter.set_name (_("Audio files"));
	
	midi_filter.add_custom (FILE_FILTER_FILENAME, sigc::mem_fun(*this, &SoundFileBrowser::on_midi_filter));
	midi_filter.set_name (_("MIDI files"));
	
	matchall_filter.add_pattern ("*.*");
	matchall_filter.set_name (_("All files"));
	
	chooser.add_filter (audio_and_midi_filter);
	chooser.add_filter (audio_filter);
	chooser.add_filter (midi_filter);
	chooser.add_filter (matchall_filter);
	chooser.set_select_multiple (true);
	chooser.signal_update_preview().connect(sigc::mem_fun(*this, &SoundFileBrowser::update_preview));
	chooser.signal_file_activated().connect (sigc::mem_fun (*this, &SoundFileBrowser::chooser_file_activated));

#ifdef GTKOSX
	/* some broken redraw behaviour - this is a bandaid */
	chooser.signal_selection_changed().connect (mem_fun (chooser, &Widget::queue_draw));
#endif
	
	if (!persistent_folder.empty()) {
		chooser.set_current_folder (persistent_folder);
	}

	notebook.append_page (chooser, _("Browse Files"));
	
	hpacker.set_spacing (6);
	hpacker.pack_start (notebook, true, true);
	hpacker.pack_start (preview, false, false);

	vpacker.set_spacing (6);
	vpacker.pack_start (hpacker, true, true);

	add (vpacker);

	//add tag search

	VBox* vbox;
	HBox* hbox;
	
	
	hbox = manage(new HBox);
	hbox->pack_start (found_entry);
	hbox->pack_start (found_search_btn);
	
	Gtk::ScrolledWindow *scroll = manage(new ScrolledWindow);
	scroll->add(found_list_view);
	scroll->set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
	
	vbox = manage(new VBox);
	vbox->pack_start (*hbox, PACK_SHRINK);
	vbox->pack_start (*scroll);
	
	found_list_view.append_column(_("Paths"), found_list_columns.pathname);
	
	found_list_view.get_selection()->signal_changed().connect(sigc::mem_fun(*this, &SoundFileBrowser::found_list_view_selected));
	
	found_list_view.signal_row_activated().connect (sigc::mem_fun (*this, &SoundFileBrowser::found_list_view_activated));
	
	found_search_btn.signal_clicked().connect(sigc::mem_fun(*this, &SoundFileBrowser::found_search_clicked));
	found_entry.signal_activate().connect(sigc::mem_fun(*this, &SoundFileBrowser::found_search_clicked));
	
	notebook.append_page (*vbox, _("Search Tags"));

#ifdef FREESOUND

	//add freesound search

	HBox* passbox;
	Label* label;
	
	passbox = manage(new HBox);
	passbox->set_spacing (6);
	
	label = manage (new Label);
	label->set_text (_("Tags:"));
	passbox->pack_start (*label, false, false);
	passbox->pack_start (freesound_entry, true, true);
	
	label = manage (new Label);
	label->set_text (_("Sort:"));
	passbox->pack_start (*label, false, false);
	passbox->pack_start (freesound_sort, false, false);
	freesound_sort.clear_items();
	
	// Order of the following must correspond with enum sortMethod
	// in sfdb_freesound_mootcher.h	
	freesound_sort.append_text(_("None"));
	freesound_sort.append_text(_("Longest"));
	freesound_sort.append_text(_("Shortest"));
	freesound_sort.append_text(_("Newest"));
	freesound_sort.append_text(_("Oldest"));
	freesound_sort.append_text(_("Most downloaded"));
	freesound_sort.append_text(_("Least downloaded"));
	freesound_sort.append_text(_("Highest rated"));
	freesound_sort.append_text(_("Lowest rated"));
	freesound_sort.set_active(0);
	
	passbox->pack_start (freesound_search_btn, false, false);
	passbox->pack_start (freesound_more_btn, false, false);
	freesound_more_btn.set_label(_("More"));
	freesound_more_btn.set_sensitive(false);

	passbox->pack_start (freesound_similar_btn, false, false);
	freesound_similar_btn.set_label(_("Similar"));
	freesound_similar_btn.set_sensitive(false);
	
	scroll = manage(new ScrolledWindow);
	scroll->add(freesound_list_view);
	scroll->set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
	
	vbox = manage(new VBox);
	vbox->set_spacing (3);
	vbox->pack_start (*passbox, PACK_SHRINK);
	vbox->pack_start (*scroll);

	freesound_list_view.append_column(_("ID")      , freesound_list_columns.id);
	freesound_list_view.append_column(_("Filename"), freesound_list_columns.filename);
	// freesound_list_view.append_column(_("URI")     , freesound_list_columns.uri);
	freesound_list_view.append_column(_("Duration"), freesound_list_columns.duration);
	freesound_list_view.append_column(_("Size"), freesound_list_columns.filesize);
	freesound_list_view.append_column(_("Samplerate"), freesound_list_columns.smplrate);
	freesound_list_view.append_column(_("License"), freesound_list_columns.license);
	freesound_list_view.get_column(0)->set_alignment(0.5);
	freesound_list_view.get_column(1)->set_expand(true); // filename
	freesound_list_view.get_column(1)->set_resizable(true); // filename
	freesound_list_view.get_column(2)->set_alignment(0.5);
	freesound_list_view.get_column(3)->set_alignment(0.5);
	freesound_list_view.get_column(4)->set_alignment(0.5);
	freesound_list_view.get_column(5)->set_alignment(0.5);
	
	freesound_list_view.get_selection()->signal_changed().connect(sigc::mem_fun(*this, &SoundFileBrowser::freesound_list_view_selected));
	freesound_list_view.set_tooltip_column(1);

	freesound_list_view.get_selection()->set_mode (SELECTION_MULTIPLE);
	freesound_list_view.signal_row_activated().connect (sigc::mem_fun (*this, &SoundFileBrowser::freesound_list_view_activated));
	freesound_search_btn.signal_clicked().connect(sigc::mem_fun(*this, &SoundFileBrowser::freesound_search_clicked));
	freesound_entry.signal_activate().connect(sigc::mem_fun(*this, &SoundFileBrowser::freesound_search_clicked));
	freesound_more_btn.signal_clicked().connect(sigc::mem_fun(*this, &SoundFileBrowser::freesound_more_clicked));
	freesound_similar_btn.signal_clicked().connect(sigc::mem_fun(*this, &SoundFileBrowser::freesound_similar_clicked));
	notebook.append_page (*vbox, _("Search Freesound"));
#endif

	notebook.set_size_request (500, -1);
	notebook.signal_switch_page().connect (sigc::hide_return (sigc::hide (sigc::hide (sigc::mem_fun (*this, &SoundFileBrowser::reset_options)))));

	set_session (s);

	Gtk::HButtonBox* button_box = manage (new HButtonBox);

	button_box->set_layout (BUTTONBOX_END);
	button_box->pack_start (cancel_button, false, false);
	cancel_button.signal_clicked().connect (sigc::bind (sigc::mem_fun (*this, &SoundFileBrowser::do_something), RESPONSE_CANCEL));
	if (persistent) {
		button_box->pack_start (apply_button, false, false);
		apply_button.signal_clicked().connect (sigc::bind (sigc::mem_fun (*this, &SoundFileBrowser::do_something), RESPONSE_APPLY));
	}

	button_box->pack_start (ok_button, false, false);
	ok_button.signal_clicked().connect (sigc::bind (sigc::mem_fun (*this, &SoundFileBrowser::do_something), RESPONSE_OK));

	Gtkmm2ext::UI::instance()->set_tip (ok_button, _("Press to import selected files and close this window"));
	Gtkmm2ext::UI::instance()->set_tip (apply_button, _("Press to import selected files and leave this window open"));
	Gtkmm2ext::UI::instance()->set_tip (cancel_button, _("Press to close this window without importing any files"));

	vpacker.pack_end (*button_box, false, false);

	set_wmclass (X_("import"), PROGRAM_NAME);
}

SoundFileBrowser::~SoundFileBrowser ()
{
	persistent_folder = chooser.get_current_folder();
}

int
SoundFileBrowser::run ()
{
	set_modal (true);
	show_all ();
	present ();

	_done = false;

	while (!_done) {
		gtk_main_iteration ();
	}

	return _status;
}

void
SoundFileBrowser::set_action_sensitive (bool yn)
{
	ok_button.set_sensitive (yn);
	apply_button.set_sensitive (yn);
}

void
SoundFileBrowser::do_something (int action)
{
	_done = true;
	_status = action;
}

void
SoundFileBrowser::on_show ()
{
	ArdourWindow::on_show ();
	start_metering ();
}

void
SoundFileBrowser::clear_selection ()
{
	chooser.unselect_all ();
	found_list_view.get_selection()->unselect_all ();
}

void
SoundFileBrowser::chooser_file_activated ()
{
	preview.audition ();
}

void
SoundFileBrowser::found_list_view_activated (const TreeModel::Path&, TreeViewColumn*)
{
	preview.audition ();
}

void
SoundFileBrowser::freesound_list_view_activated (const TreeModel::Path&, TreeViewColumn*)
{
	preview.audition ();
}

void
SoundFileBrowser::set_session (Session* s)
{
	ArdourWindow::set_session (s);
	preview.set_session (s);

	if (_session) {
		add_gain_meter ();
	} else {
		remove_gain_meter ();
	}
}

void
SoundFileBrowser::add_gain_meter ()
{
	delete gm;

	gm = new GainMeter (_session, 250);

	boost::shared_ptr<Route> r = _session->the_auditioner ();

	gm->set_controls (r, r->shared_peak_meter(), r->amp());
	gm->set_fader_name (X_("AudioTrackFader"));

	meter_packer.set_border_width (12);
	meter_packer.pack_start (*gm, false, true);
	hpacker.pack_end (meter_packer, false, false);
	meter_packer.show_all ();
	start_metering ();
}

void
SoundFileBrowser::remove_gain_meter ()
{
	if (gm) {
		meter_packer.remove (*gm);
		hpacker.remove (meter_packer);
		delete gm;
		gm = 0;
	}
}

void
SoundFileBrowser::start_metering ()
{
	metering_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (sigc::mem_fun(*this, &SoundFileBrowser::meter));
}

void
SoundFileBrowser::stop_metering ()
{
	metering_connection.disconnect();
}

void
SoundFileBrowser::meter ()
{
	if (is_mapped () && _session && gm) {
		gm->update_meters ();
	}
}

bool
SoundFileBrowser::on_audio_filter (const FileFilter::Info& filter_info)
{
	return AudioFileSource::safe_audio_file_extension (filter_info.filename);
}

bool
SoundFileBrowser::on_midi_filter (const FileFilter::Info& filter_info)
{
	return SMFSource::safe_midi_file_extension (filter_info.filename);
}

bool
SoundFileBrowser::on_audio_and_midi_filter (const FileFilter::Info& filter_info)
{
	return on_audio_filter (filter_info) || on_midi_filter (filter_info);
}

void
SoundFileBrowser::update_preview ()
{
	if (preview.setup_labels (chooser.get_preview_filename())) {
		if (preview.autoplay()) {
			Glib::signal_idle().connect (sigc::mem_fun (preview, &SoundFileBox::audition_oneshot));
		}
	}
}

void
SoundFileBrowser::found_list_view_selected ()
{
	if (!reset_options ()) {
		set_action_sensitive (false);
	} else {
		string file;

		ListPath rows = found_list_view.get_selection()->get_selected_rows ();

		if (!rows.empty()) {
			TreeIter iter = found_list->get_iter(*rows.begin());
			file = (*iter)[found_list_columns.pathname];
			chooser.set_filename (file);
			set_action_sensitive (true);
		} else {
			set_action_sensitive (false);
		}

		preview.setup_labels (file);
	}
}

void
SoundFileBrowser::found_search_clicked ()
{
	string tag_string = found_entry.get_text ();

	vector<string> tags;

	if (!PBD::tokenize (tag_string, string(","), std::back_inserter (tags), true)) {
		warning << _("SoundFileBrowser: Could not tokenize string: ") << tag_string << endmsg;
		return;
	}

	vector<string> results;
	Library->search_members_and (results, tags);

	found_list->clear();
	for (vector<string>::iterator i = results.begin(); i != results.end(); ++i) {
		TreeModel::iterator new_row = found_list->append();
		TreeModel::Row row = *new_row;
		string path = Glib::filename_from_uri (string ("file:") + *i);
		row[found_list_columns.pathname] = path;
	}
}


std::string
SoundFileBrowser::freesound_get_audio_file(Gtk::TreeIter iter)
{

	Mootcher *mootcher = new Mootcher;
	std::string file;

	string id  = (*iter)[freesound_list_columns.id];
	string uri = (*iter)[freesound_list_columns.uri];
	string ofn = (*iter)[freesound_list_columns.filename];

	if (mootcher->checkAudioFile(ofn, id)) {
		// file already exists, no need to download it again
		file = mootcher->audioFileName;
		delete mootcher;
		(*iter)[freesound_list_columns.started] = false;
		return file;
	}
	if (!(*iter)[freesound_list_columns.started]) {
		// start downloading the sound file
		(*iter)[freesound_list_columns.started] = true;
		mootcher->fetchAudioFile(ofn, id, uri, this);
	}
	return "";
}

void
SoundFileBrowser::freesound_list_view_selected ()
{

	if (!reset_options ()) {
		set_action_sensitive (false);
	} else {
		std::string file;
		ListPath rows = freesound_list_view.get_selection()->get_selected_rows ();
		for (ListPath::iterator i = rows.begin() ; i != rows.end(); ++i) {
			file = freesound_get_audio_file (freesound_list->get_iter(*i));
		}

		switch (rows.size()) {
			case 0:
				// nothing selected
				freesound_similar_btn.set_sensitive(false);
				set_action_sensitive (false);
				break;
			case 1:
				// exactly one item selected
				if (file != "") {
					// file exists on disk already
					chooser.set_filename (file);
					preview.setup_labels (file);
					set_action_sensitive (true);
				}
				freesound_similar_btn.set_sensitive(true);
				break;
			default:
				// multiple items selected
				preview.setup_labels ("");
				freesound_similar_btn.set_sensitive(false);
				break;
		}

	}
}

void
SoundFileBrowser::refresh_display(std::string ID, std::string file)
{
	// called when the mootcher has finished downloading a file
	ListPath rows = freesound_list_view.get_selection()->get_selected_rows ();
	if (rows.size() == 1) {
		// there's a single item selected in the freesound list
		//XXX make a function to be used to construct the actual file name both here and in the mootcher
		Gtk::TreeIter row = freesound_list->get_iter(*rows.begin());
		std::string selected_ID = (*row)[freesound_list_columns.id]; 
		if (ID == selected_ID) {
			// the selected item in the freesound list is the item that has just finished downloading
			chooser.set_filename(file);
			preview.setup_labels (file);
			set_action_sensitive (true);
		}
	}
}

void
SoundFileBrowser::freesound_search_clicked ()
{
	freesound_page = 1;
	freesound_list->clear();
	matches = 0;
	freesound_search();
}

void
SoundFileBrowser::freesound_more_clicked ()
{
	char row_path[21];
	freesound_page++;
	freesound_search();
	snprintf(row_path, 21, "%d", (freesound_page - 1) * 100);
	freesound_list_view.scroll_to_row(Gtk::TreePath(row_path), 0);
}

void
SoundFileBrowser::freesound_similar_clicked ()
{
	ListPath rows = freesound_list_view.get_selection()->get_selected_rows ();
	if (rows.size() == 1) {
		Mootcher mootcher;
		string id;
		Gtk::TreeIter iter = freesound_list->get_iter(*rows.begin());
		id = (*iter)[freesound_list_columns.id];
		freesound_list->clear();

		GdkCursor *prev_cursor;
		prev_cursor = gdk_window_get_cursor (get_window()->gobj());
		gdk_window_set_cursor (get_window()->gobj(), gdk_cursor_new(GDK_WATCH));
		gdk_flush();
		
		std::string theString = mootcher.searchSimilar(id);
		
		gdk_window_set_cursor (get_window()->gobj(), prev_cursor);
		handle_freesound_results(theString);
	}
}

void
SoundFileBrowser::freesound_search()
{
	Mootcher mootcher;

	string search_string = freesound_entry.get_text ();
	enum sortMethod sort_method = (enum sortMethod) freesound_sort.get_active_row_number();

	GdkCursor *prev_cursor;
	prev_cursor = gdk_window_get_cursor (get_window()->gobj());
	gdk_window_set_cursor (get_window()->gobj(), gdk_cursor_new(GDK_WATCH));
	gdk_flush();

	std::string theString = mootcher.searchText(
			search_string, 
			freesound_page,
#ifdef GTKOSX
			"", // OSX eats anything incl mp3
#else
			"type:wav OR type:aiff OR type:flac OR type:aif OR type:ogg OR type:oga",
#endif
			sort_method
			);

	gdk_window_set_cursor (get_window()->gobj(), prev_cursor);
	handle_freesound_results(theString);
}

void
SoundFileBrowser::handle_freesound_results(std::string theString) {
	XMLTree doc;
	doc.read_buffer( theString );
	XMLNode *root = doc.root();

	if (!root) {
		error << "no root XML node!" << endmsg;
		return;
	}

	if ( strcmp(root->name().c_str(), "response") != 0) {
		error << string_compose ("root node name == %1 != \"response\"", root->name()) << endmsg;
		return;
	}

	// find out how many pages are available to search
	int freesound_n_pages = 1;
	XMLNode *res = root->child("num_pages");
	if (res) {
		string result = res->child("text")->content();
		freesound_n_pages = atoi(result);
	}

	int more_pages = freesound_n_pages - freesound_page;

	if (more_pages > 0) {
		freesound_more_btn.set_sensitive(true);
		freesound_more_btn.set_tooltip_text(string_compose(P_(
						"%1 more page of 100 results available",
						"%1 more pages of 100 results available",
						more_pages), more_pages));
	} else {
		freesound_more_btn.set_sensitive(false);
		freesound_more_btn.set_tooltip_text(_("No more results available"));
	}

	XMLNode *sounds_root = root->child("sounds");
	if (!sounds_root) {
		error << "no child node \"sounds\" found!" << endmsg;
		return;
	}

	XMLNodeList sounds = sounds_root->children();
	if (sounds.size() == 0) {
		/* nothing found */
		return;
	}

	XMLNodeConstIterator niter;
	XMLNode *node;
	for (niter = sounds.begin(); niter != sounds.end(); ++niter) {
		node = *niter;
		if( strcmp( node->name().c_str(), "resource") != 0 ) {
			error << string_compose ("node->name()=%1 != \"resource\"", node->name()) << endmsg;
			break;
		}

		// node->dump(cerr, "node:");


		XMLNode *id_node  = node->child ("id");
		XMLNode *uri_node = node->child ("serve");
		XMLNode *ofn_node = node->child ("original_filename");
		XMLNode *dur_node = node->child ("duration");
		XMLNode *siz_node = node->child ("filesize");
		XMLNode *srt_node = node->child ("samplerate");
		XMLNode *lic_node = node->child ("license");

		if (id_node && uri_node && ofn_node && dur_node && siz_node && srt_node) {

			std::string  id =  id_node->child("text")->content();
			std::string uri = uri_node->child("text")->content();
			std::string ofn = ofn_node->child("text")->content();
			std::string dur = dur_node->child("text")->content();
			std::string siz = siz_node->child("text")->content();
			std::string srt = srt_node->child("text")->content();
			std::string lic = lic_node->child("text")->content();

			std::string r;
			// cerr << "id=" << id << ",uri=" << uri << ",ofn=" << ofn << ",dur=" << dur << endl;

			double duration_seconds = atof(dur);
			double h, m, s;
			char duration_hhmmss[16];
			if (duration_seconds >= 99 * 60 * 60) {
				strcpy(duration_hhmmss, ">99h");
			} else {
				s = modf(duration_seconds/60, &m) * 60;
				m = modf(m/60, &h) * 60;
				sprintf(duration_hhmmss, "%02.fh:%02.fm:%04.1fs",
						h, m, s
				       );
			}

			double size_bytes = atof(siz);
			char bsize[32];
			if (size_bytes < 1000) {
				sprintf(bsize, "%.0f %s", size_bytes, _("B"));
			} else if (size_bytes < 1000000 ) {
				sprintf(bsize, "%.1f %s", size_bytes / 1000.0, _("kB"));
			} else if (size_bytes < 10000000) {
				sprintf(bsize, "%.1f %s", size_bytes / 1000000.0, _("MB"));
			} else if (size_bytes < 1000000000) {
				sprintf(bsize, "%.2f %s", size_bytes / 1000000.0, _("MB"));
			} else {
				sprintf(bsize, "%.2f %s", size_bytes / 1000000000.0, _("GB"));
			}

			/* see http://www.freesound.org/help/faq/#licenses */
			char shortlicense[64];
			if(!lic.compare(0, 42, "http://creativecommons.org/licenses/by-nc/")){
				sprintf(shortlicense, "CC-BY-NC");
			} else if(!lic.compare(0, 39, "http://creativecommons.org/licenses/by/")) {
				sprintf(shortlicense, "CC-BY");
			} else if(!lic.compare("http://creativecommons.org/licenses/sampling+/1.0/")) {
				sprintf(shortlicense, "sampling+");
			} else if(!lic.compare(0, 40, "http://creativecommons.org/publicdomain/")) {
				sprintf(shortlicense, "PD");
			} else {
				snprintf(shortlicense, 64, "%s", lic.c_str());
				shortlicense[63]= '\0';
			}

			TreeModel::iterator new_row = freesound_list->append();
			TreeModel::Row row = *new_row;

			row[freesound_list_columns.id      ] = id;
			row[freesound_list_columns.uri     ] = uri;
			row[freesound_list_columns.filename] = ofn;
			row[freesound_list_columns.duration] = duration_hhmmss;
			row[freesound_list_columns.filesize] = bsize;
			row[freesound_list_columns.smplrate] = srt;
			row[freesound_list_columns.license ] = shortlicense;
			matches++;
		}
	}
}

vector<string>
SoundFileBrowser::get_paths ()
{
	vector<string> results;

	int n = notebook.get_current_page ();

	if (n == 0) {
		vector<string> filenames = chooser.get_filenames();
		vector<string>::iterator i;

		for (i = filenames.begin(); i != filenames.end(); ++i) {
			struct stat buf;
			if ((!stat((*i).c_str(), &buf)) && S_ISREG(buf.st_mode)) {
				results.push_back (*i);
			}
		}

	} else if (n == 1) {

		ListPath rows = found_list_view.get_selection()->get_selected_rows ();
		for (ListPath::iterator i = rows.begin() ; i != rows.end(); ++i) {
			TreeIter iter = found_list->get_iter(*i);
			string str = (*iter)[found_list_columns.pathname];

			results.push_back (str);
		}
	} else {
#ifdef FREESOUND
		ListPath rows = freesound_list_view.get_selection()->get_selected_rows ();
		for (ListPath::iterator i = rows.begin() ; i != rows.end(); ++i) {
			string str = freesound_get_audio_file (freesound_list->get_iter(*i));
			if (str != "") {
				results.push_back (str);
			}
		}
#endif
	}

	return results;
}

void
SoundFileOmega::reset_options_noret ()
{
	if (!resetting_ourselves) {
		(void) reset_options ();
	}
}

bool
SoundFileOmega::reset_options ()
{
	vector<string> paths = get_paths ();

	if (paths.empty()) {

		channel_combo.set_sensitive (false);
		action_combo.set_sensitive (false);
		where_combo.set_sensitive (false);
		copy_files_btn.set_active (true);
		copy_files_btn.set_sensitive (false);

		return false;

	} else {

		channel_combo.set_sensitive (true);
		action_combo.set_sensitive (true);
		where_combo.set_sensitive (true);

		/* if we get through this function successfully, this may be
		   reset at the end, once we know if we can use hard links
		   to do embedding (or if we are importing a MIDI file).
		*/

		if (Config->get_only_copy_imported_files()) {
			copy_files_btn.set_sensitive (false);
		} else {
			copy_files_btn.set_sensitive (false);
		}
	}

	bool same_size;
	bool src_needed;
	bool selection_includes_multichannel;
	bool selection_can_be_embedded_with_links = check_link_status (_session, paths);
	ImportMode mode;

	/* See if we are thinking about importing any MIDI files */
	vector<string>::iterator i = paths.begin ();
	while (i != paths.end() && SMFSource::safe_midi_file_extension (*i) == false) {
		++i;
	}
	bool const have_a_midi_file = (i != paths.end ());

	if (check_info (paths, same_size, src_needed, selection_includes_multichannel)) {
		Glib::signal_idle().connect (sigc::mem_fun (*this, &SoundFileOmega::bad_file_message));
		return false;
	}

	string existing_choice;
	vector<string> action_strings;

	resetting_ourselves = true;

	if (chooser.get_filter() == &audio_filter) {

		/* AUDIO */

		if (selected_audio_track_cnt > 0) {
			if (channel_combo.get_active_text().length()) {
				ImportDisposition id = get_channel_disposition();
				
				switch (id) {
				case Editing::ImportDistinctFiles:
					if (selected_audio_track_cnt == paths.size()) {
						action_strings.push_back (importmode2string (ImportToTrack));
					}
					break;
					
				case Editing::ImportDistinctChannels:
					/* XXX it would be nice to allow channel-per-selected track
					   but its too hard we don't want to deal with all the
					   different per-file + per-track channel configurations.
					*/
					break;
					
				default:
					action_strings.push_back (importmode2string (ImportToTrack));
					break;
				}
			}
		}
		
	}  else {

		/* MIDI ONLY */

		if (selected_midi_track_cnt > 0) {
			action_strings.push_back (importmode2string (ImportToTrack));
		}
	}

	action_strings.push_back (importmode2string (ImportAsTrack));
	action_strings.push_back (importmode2string (ImportAsRegion));
	action_strings.push_back (importmode2string (ImportAsTapeTrack));

	existing_choice = action_combo.get_active_text();

	set_popdown_strings (action_combo, action_strings);

	/* preserve any existing choice, if possible */


	if (existing_choice.length()) {
		vector<string>::iterator x;
		for (x = action_strings.begin(); x != action_strings.end(); ++x) {
			if (*x == existing_choice) {
				action_combo.set_active_text (existing_choice);
				break;
			}
		}
		if (x == action_strings.end()) {
			action_combo.set_active_text (action_strings.front());
		}
	} else {
		action_combo.set_active_text (action_strings.front());
	}

	resetting_ourselves = false;

	if ((mode = get_mode()) == ImportAsRegion) {
		where_combo.set_sensitive (false);
	} else {
		where_combo.set_sensitive (true);
	}

	vector<string> channel_strings;

	if (mode == ImportAsTrack || mode == ImportAsTapeTrack || mode == ImportToTrack) {
		channel_strings.push_back (_("one track per file"));

		if (selection_includes_multichannel) {
			channel_strings.push_back (_("one track per channel"));
		}

		if (paths.size() > 1) {
			/* tape tracks are a single region per track, so we cannot
			   sequence multiple files.
			*/
			if (mode != ImportAsTapeTrack) {
				channel_strings.push_back (_("sequence files"));
			}
			if (same_size) {
				channel_strings.push_back (_("all files in one track"));
				channel_strings.push_back (_("merge files"));
			}

		}

	} else {
		channel_strings.push_back (_("one region per file"));

		if (selection_includes_multichannel) {
			channel_strings.push_back (_("one region per channel"));
		}

		if (paths.size() > 1) {
			if (same_size) {
				channel_strings.push_back (_("all files in one region"));
			}
		}
	}

	resetting_ourselves = true;

	existing_choice = channel_combo.get_active_text();

	set_popdown_strings (channel_combo, channel_strings);

	/* preserve any existing choice, if possible */

	if (existing_choice.length()) {
		vector<string>::iterator x;
		for (x = channel_strings.begin(); x != channel_strings.end(); ++x) {
			if (*x == existing_choice) {
				channel_combo.set_active_text (existing_choice);
				break;
			}
		}
		if (x == channel_strings.end()) {
			channel_combo.set_active_text (channel_strings.front());
		}
	} else {
		channel_combo.set_active_text (channel_strings.front());
	}

	resetting_ourselves = false;

	if (src_needed) {
		src_combo.set_sensitive (true);
	} else {
		src_combo.set_sensitive (false);
	}

	/* We must copy MIDI files or those from Freesound
	 * or any file if we are under nsm control */
	bool const must_copy = _session->get_nsm_state() || have_a_midi_file || notebook.get_current_page() == 2;
	
	if (Config->get_only_copy_imported_files()) {

		if (selection_can_be_embedded_with_links && !must_copy) {
			copy_files_btn.set_sensitive (true);
		} else {
			if (must_copy) {
				copy_files_btn.set_active (true);
			}
			copy_files_btn.set_sensitive (false);
		}

	}  else {

		if (must_copy) {
			copy_files_btn.set_active (true);
		}			
		copy_files_btn.set_sensitive (!must_copy);
	}

	return true;
}


bool
SoundFileOmega::bad_file_message()
{
	MessageDialog msg (*this,
			   string_compose (_("One or more of the selected files\ncannot be used by %1"), PROGRAM_NAME),
			   true,
			   Gtk::MESSAGE_INFO,
			   Gtk::BUTTONS_OK);
	msg.run ();
	resetting_ourselves = true;
	chooser.unselect_uri (chooser.get_preview_uri());
	resetting_ourselves = false;

	return false;
}

bool
SoundFileOmega::check_info (const vector<string>& paths, bool& same_size, bool& src_needed, bool& multichannel)
{
	SoundFileInfo info;
	framepos_t sz = 0;
	bool err = false;
	string errmsg;

	same_size = true;
	src_needed = false;
	multichannel = false;

	for (vector<string>::const_iterator i = paths.begin(); i != paths.end(); ++i) {

		if (AudioFileSource::get_soundfile_info (*i, info, errmsg)) {
			if (info.channels > 1) {
				multichannel = true;
			}
			if (sz == 0) {
				sz = info.length;
			} else {
				if (sz != info.length) {
					same_size = false;
				}
			}

			if (info.samplerate != _session->frame_rate()) {
				src_needed = true;
			}

		} else if (SMFSource::safe_midi_file_extension (*i)) {

			Evoral::SMF reader;
			reader.open(*i);
			if (reader.num_tracks() > 1) {
				multichannel = true; // "channel" == track here...
			}

			/* XXX we need err = true handling here in case
			   we can't check the file
			*/

		} else {
			err = true;
		}
	}

	return err;
}


bool
SoundFileOmega::check_link_status (const Session* s, const vector<string>& paths)
{
	std::string tmpdir(Glib::build_filename (s->session_directory().sound_path(), "linktest"));
	bool ret = false;

	if (mkdir (tmpdir.c_str(), 0744)) {
		if (errno != EEXIST) {
			return false;
		}
	}

	for (vector<string>::const_iterator i = paths.begin(); i != paths.end(); ++i) {

		char tmpc[MAXPATHLEN+1];

		snprintf (tmpc, sizeof(tmpc), "%s/%s", tmpdir.c_str(), Glib::path_get_basename (*i).c_str());

		/* can we link ? */

		if (link ((*i).c_str(), tmpc)) {
			goto out;
		}

		unlink (tmpc);
	}

	ret = true;

  out:
	rmdir (tmpdir.c_str());
	return ret;
}

SoundFileChooser::SoundFileChooser (string title, ARDOUR::Session* s)
	: SoundFileBrowser (title, s, false)
{
	chooser.set_select_multiple (false);
	found_list_view.get_selection()->set_mode (SELECTION_SINGLE);
	freesound_list_view.get_selection()->set_mode (SELECTION_SINGLE);
}

void
SoundFileChooser::on_hide ()
{
	ArdourWindow::on_hide();
	stop_metering ();

	if (_session) {
		_session->cancel_audition();
	}
}

string
SoundFileChooser::get_filename ()
{
	vector<string> paths;

	paths = get_paths ();

	if (paths.empty()) {
		return string ();
	}

	if (!Glib::file_test (paths.front(), Glib::FILE_TEST_EXISTS|Glib::FILE_TEST_IS_REGULAR)) {
		return string();
	}

	return paths.front();
}

SoundFileOmega::SoundFileOmega (string title, ARDOUR::Session* s, 
				uint32_t selected_audio_tracks, 
				uint32_t selected_midi_tracks, 
				bool persistent,
				Editing::ImportMode mode_hint)
	: SoundFileBrowser (title, s, persistent)
	, copy_files_btn ( _("Copy files to session"))
	, selected_audio_track_cnt (selected_audio_tracks)
	, selected_midi_track_cnt (selected_midi_tracks)
{
	VBox* vbox;
	HBox* hbox;
	vector<string> str;

	set_size_request (-1, 450);

	block_two.set_border_width (12);
	block_three.set_border_width (12);
	block_four.set_border_width (12);

	options.set_spacing (12);

	str.clear ();
	str.push_back (_("file timestamp"));
	str.push_back (_("edit point"));
	str.push_back (_("playhead"));
	str.push_back (_("session start"));
	set_popdown_strings (where_combo, str);
	where_combo.set_active_text (str.front());

	Label* l = manage (new Label);
	l->set_markup (_("<b>Add files as ...</b>"));

	vbox = manage (new VBox);
	vbox->set_border_width (12);
	vbox->set_spacing (6);
	vbox->pack_start (*l, false, false);
	vbox->pack_start (action_combo, false, false);
	hbox = manage (new HBox);
	hbox->pack_start (*vbox, false, false);
	options.pack_start (*hbox, false, false);

	/* dummy entry for action combo so that it doesn't look odd if we
	   come up with no tracks selected.
	*/

	str.clear ();
	str.push_back (importmode2string (mode_hint));
	set_popdown_strings (action_combo, str);
	action_combo.set_active_text (str.front());
	action_combo.set_sensitive (false);

	l = manage (new Label);
	l->set_markup (_("<b>Insert at</b>"));

	vbox = manage (new VBox);
	vbox->set_border_width (12);
	vbox->set_spacing (6);
	vbox->pack_start (*l, false, false);
	vbox->pack_start (where_combo, false, false);
	hbox = manage (new HBox);
	hbox->pack_start (*vbox, false, false);
	options.pack_start (*hbox, false, false);


	l = manage (new Label);
	l->set_markup (_("<b>Mapping</b>"));

	vbox = manage (new VBox);
	vbox->set_border_width (12);
	vbox->set_spacing (6);
	vbox->pack_start (*l, false, false);
	vbox->pack_start (channel_combo, false, false);
	hbox = manage (new HBox);
	hbox->pack_start (*vbox, false, false);
	options.pack_start (*hbox, false, false);

	str.clear ();
	str.push_back (_("one track per file"));
	set_popdown_strings (channel_combo, str);
	channel_combo.set_active_text (str.front());
	channel_combo.set_sensitive (false);

	l = manage (new Label);
	l->set_markup (_("<b>Conversion quality</b>"));

	vbox = manage (new VBox);
	vbox->set_border_width (12);
	vbox->set_spacing (6);
	vbox->pack_start (*l, false, false);
	vbox->pack_start (src_combo, false, false);
	hbox = manage (new HBox);
	hbox->pack_start (*vbox, false, false);
	options.pack_start (*hbox, false, false);

	str.clear ();
	str.push_back (_("Best"));
	str.push_back (_("Good"));
	str.push_back (_("Quick"));
	str.push_back (_("Fast"));
	str.push_back (_("Fastest"));

	set_popdown_strings (src_combo, str);
	src_combo.set_active_text (str.front());
	src_combo.set_sensitive (false);

	reset_options ();

	action_combo.signal_changed().connect (sigc::mem_fun (*this, &SoundFileOmega::reset_options_noret));
	channel_combo.signal_changed().connect (sigc::mem_fun (*this, &SoundFileOmega::reset_options_noret));

	copy_files_btn.set_active (true);

	Gtk::Label* copy_label = dynamic_cast<Gtk::Label*>(copy_files_btn.get_child());

	if (copy_label) {
		copy_label->set_size_request (175, -1);
		copy_label->set_line_wrap (true);
	}

	block_four.pack_start (copy_files_btn, false, false);

	options.pack_start (block_four, false, false);

	vpacker.pack_start (options, false, false);

	/* setup disposition map */

	disposition_map.insert (pair<string,ImportDisposition>(_("one track per file"), ImportDistinctFiles));
	disposition_map.insert (pair<string,ImportDisposition>(_("one track per channel"), ImportDistinctChannels));
	disposition_map.insert (pair<string,ImportDisposition>(_("merge files"), ImportMergeFiles));
	disposition_map.insert (pair<string,ImportDisposition>(_("sequence files"), ImportSerializeFiles));

	disposition_map.insert (pair<string,ImportDisposition>(_("one region per file"), ImportDistinctFiles));
	disposition_map.insert (pair<string,ImportDisposition>(_("one region per channel"), ImportDistinctChannels));
	disposition_map.insert (pair<string,ImportDisposition>(_("all files in one region"), ImportMergeFiles));
	disposition_map.insert (pair<string,ImportDisposition>(_("all files in one track"), ImportMergeFiles));

	chooser.signal_selection_changed().connect (sigc::mem_fun (*this, &SoundFileOmega::file_selection_changed));

	/* set size requests for a couple of combos to allow them to display the longest text
	   they will ever be asked to display.  This prevents them being resized when the user
	   selects a file to import, which in turn prevents the size of the dialog from jumping
	   around. */

	vector<string> t;
	t.push_back (_("one track per file"));
	t.push_back (_("one track per channel"));
	t.push_back (_("sequence files"));
	t.push_back (_("all files in one region"));
	set_popdown_strings (channel_combo, t);

	t.clear ();
	t.push_back (importmode2string (ImportAsTrack));
	t.push_back (importmode2string (ImportToTrack));
	t.push_back (importmode2string (ImportAsRegion));
	t.push_back (importmode2string (ImportAsTapeTrack));
	set_popdown_strings (action_combo, t);
}

void
SoundFileOmega::set_mode (ImportMode mode)
{
	action_combo.set_active_text (importmode2string (mode));
}

ImportMode
SoundFileOmega::get_mode () const
{
	return string2importmode (action_combo.get_active_text());
}

void
SoundFileOmega::on_hide ()
{
	ArdourWindow::on_hide();
	if (_session) {
		_session->cancel_audition();
	}
}

ImportPosition
SoundFileOmega::get_position() const
{
	string str = where_combo.get_active_text();

	if (str == _("file timestamp")) {
		return ImportAtTimestamp;
	} else if (str == _("edit point")) {
		return ImportAtEditPoint;
	} else if (str == _("playhead")) {
		return ImportAtPlayhead;
	} else {
		return ImportAtStart;
	}
}

SrcQuality
SoundFileOmega::get_src_quality() const
{
	string str = src_combo.get_active_text();

	if (str == _("Best")) {
		return SrcBest;
	} else if (str == _("Good")) {
		return SrcGood;
	} else if (str == _("Quick")) {
		return SrcQuick;
	} else if (str == _("Fast")) {
		return SrcFast;
	} else {
		return SrcFastest;
	}
}

ImportDisposition
SoundFileOmega::get_channel_disposition () const
{
	/* we use a map here because the channel combo can contain different strings
	   depending on the state of the other combos. the map contains all possible strings
	   and the ImportDisposition enum that corresponds to it.
	*/

	string str = channel_combo.get_active_text();
	DispositionMap::const_iterator x = disposition_map.find (str);

	if (x == disposition_map.end()) {
		fatal << string_compose (_("programming error: %1 (%2)"), "unknown string for import disposition", str) << endmsg;
		/*NOTREACHED*/
	}

	return x->second;
}

void
SoundFileOmega::reset (uint32_t selected_audio_tracks, uint32_t selected_midi_tracks)
{
	selected_audio_track_cnt = selected_audio_tracks;
	selected_midi_track_cnt = selected_midi_tracks;

	if (selected_audio_track_cnt == 0 && selected_midi_track_cnt > 0) {
		chooser.set_filter (midi_filter);
	} else if (selected_midi_track_cnt == 0 && selected_audio_track_cnt > 0) {
		chooser.set_filter (audio_filter);
	} else {
		chooser.set_filter (audio_and_midi_filter);
	}

	reset_options ();
}

void
SoundFileOmega::file_selection_changed ()
{
	if (resetting_ourselves) {
		return;
	}

	if (!reset_options ()) {
		set_action_sensitive (false);
	} else {
		if (chooser.get_filenames().size() > 0) {
			set_action_sensitive (true);
		} else {
			set_action_sensitive (false);
		}
	}
}

void
SoundFileOmega::do_something (int action)
{
	SoundFileBrowser::do_something (action);

	if (action == RESPONSE_CANCEL) {
		hide ();
		return;
	}

	/* lets do it */
	
	vector<string> paths = get_paths ();
	ImportPosition pos = get_position ();
	ImportMode mode = get_mode ();
	ImportDisposition chns = get_channel_disposition ();
	framepos_t where;
	
	switch (pos) {
	case ImportAtEditPoint:
		where = PublicEditor::instance().get_preferred_edit_position ();
		break;
	case ImportAtTimestamp:
		where = -1;
		break;
	case ImportAtPlayhead:
		where = _session->transport_frame();
		break;
	case ImportAtStart:
		where = _session->current_start_frame();
		break;
	}
	
	SrcQuality quality = get_src_quality();
	
	if (copy_files_btn.get_active()) {
		PublicEditor::instance().do_import (paths, chns, mode, quality, where);
	} else {
		PublicEditor::instance().do_embed (paths, chns, mode, where);
	}
	
	if (action == RESPONSE_OK) {
		hide ();
	}
}