13
0
livetrax/gtk2_ardour/editor_audio_import.cc
David Robillard 7666a4a5ff Don't create tracks for empty MIDI channels on import (i.e. make import look clean and sensible).
Remove no longer useful debugging output.


git-svn-id: svn://localhost/ardour2/branches/3.0@3365 d708f5d6-7413-0410-9779-e7cbd77b26cf
2008-05-16 22:40:35 +00:00

970 lines
24 KiB
C++

/*
Copyright (C) 2000-2006 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <errno.h>
#include <unistd.h>
#include <algorithm>
#include <sndfile.h>
#include <pbd/pthread_utils.h>
#include <pbd/basename.h>
#include <pbd/shortpath.h>
#include <gtkmm2ext/choice.h>
#include <gtkmm2ext/window_title.h>
#include <ardour/session.h>
#include <ardour/session_directory.h>
#include <ardour/audioplaylist.h>
#include <ardour/audioregion.h>
#include <ardour/audio_diskstream.h>
#include <ardour/midi_track.h>
#include <ardour/midi_region.h>
#include <ardour/utils.h>
#include <ardour/audio_track.h>
#include <ardour/audioplaylist.h>
#include <ardour/audiofilesource.h>
#include <ardour/region_factory.h>
#include <ardour/source_factory.h>
#include <ardour/session.h>
#include <pbd/memento_command.h>
#include "ardour_ui.h"
#include "editor.h"
#include "sfdb_ui.h"
#include "editing.h"
#include "audio_time_axis.h"
#include "midi_time_axis.h"
#include "utils.h"
#include "i18n.h"
using namespace std;
using namespace ARDOUR;
using namespace PBD;
using namespace sigc;
using namespace Gtk;
using namespace Gtkmm2ext;
using namespace Editing;
using Glib::ustring;
/* Functions supporting the incorporation of external (non-captured) audio material into ardour */
void
Editor::add_external_audio_action (ImportMode mode_hint)
{
if (session == 0) {
MessageDialog msg (0, _("You can't import or embed a file until you have a session loaded."));
msg.run ();
return;
}
if (sfbrowser == 0) {
sfbrowser = new SoundFileOmega (*this, _("Add existing media"), session, 0, true, mode_hint);
} else {
sfbrowser->set_mode (mode_hint);
}
external_audio_dialog ();
}
void
Editor::external_audio_dialog ()
{
vector<Glib::ustring> paths;
uint32_t track_cnt;
if (session == 0) {
MessageDialog msg (0, _("You can't import or embed a file until you have a session loaded."));
msg.run ();
return;
}
track_cnt = 0;
for (TrackSelection::iterator x = selection->tracks.begin(); x != selection->tracks.end(); ++x) {
AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*>(*x);
if (!atv) {
continue;
} else if (atv->is_audio_track()) {
track_cnt++;
}
}
if (sfbrowser == 0) {
sfbrowser = new SoundFileOmega (*this, _("Add existing media"), session, track_cnt, true);
} else {
sfbrowser->reset (track_cnt);
}
sfbrowser->show_all ();
bool keepRunning;
do {
keepRunning = false;
int response = sfbrowser->run ();
switch (response) {
case RESPONSE_APPLY:
// leave the dialog open
break;
case RESPONSE_OK:
sfbrowser->hide ();
break;
default:
// cancel from the browser - we are done
sfbrowser->hide ();
return;
}
/* lets do it */
paths = sfbrowser->get_paths ();
ImportPosition pos = sfbrowser->get_position ();
ImportMode mode = sfbrowser->get_mode ();
ImportDisposition chns = sfbrowser->get_channel_disposition ();
nframes64_t where;
switch (pos) {
case ImportAtEditPoint:
where = get_preferred_edit_position ();
break;
case ImportAtTimestamp:
where = -1;
break;
case ImportAtPlayhead:
where = playhead_cursor->current_frame;
break;
case ImportAtStart:
where = session->current_start_frame();
break;
}
SrcQuality quality = sfbrowser->get_src_quality();
if (sfbrowser->copy_files_btn.get_active()) {
do_import (paths, chns, mode, quality, where);
} else {
do_embed (paths, chns, mode, where);
}
if (response == RESPONSE_APPLY) {
sfbrowser->clear_selection ();
keepRunning = true;
}
} while (keepRunning);
}
typedef std::map<PBD::ID,boost::shared_ptr<ARDOUR::Source> > SourceMap;
/**
* Updating is still disabled, see note in libs/ardour/import.cc Session::import_audiofiles()
*
* all_or_nothing:
* true = show "Update", "Import" and "Skip"
* false = show "Import", and "Cancel"
*
* Returns:
* 0 To update an existing source of the same name
* 1 To import/embed the file normally (make sure the new name will be unique)
* 2 If the user wants to skip this file
**/
int
Editor::check_whether_and_how_to_import(string path, bool all_or_nothing)
{
string wave_name (Glib::path_get_basename(path));
SourceMap all_sources = session->get_sources();
bool wave_name_exists = false;
for (SourceMap::iterator i = all_sources.begin(); i != all_sources.end(); ++i) {
string tmp (Glib::path_get_basename (i->second->path()));
if (tmp == wave_name) {
wave_name_exists = true;
break;
}
}
int function = 1;
if (wave_name_exists) {
string message;
if (all_or_nothing) {
// updating is still disabled
//message = string_compose(_("The session already contains a source file named %1. Do you want to update that file (and thus all regions using the file) or import this file as a new file?"),wave_name);
message = string_compose(_("The session already contains a source file named %1. This file will be imported as a new file, please confirm."),wave_name);
} else {
message = string_compose(_("A source file %1 already exists. This operation will not update that source but import the file %2 as a new source, please confirm."), wave_name, wave_name);
}
MessageDialog dialog(message, false,Gtk::MESSAGE_QUESTION, Gtk::BUTTONS_NONE, true);
if (all_or_nothing) {
// disabled
//dialog.add_button("Update", 0);
dialog.add_button("Import", 1);
dialog.add_button("Skip", 2);
} else {
dialog.add_button("Import", 1);
dialog.add_button("Cancel", 2);
}
//dialog.add_button("Skip all", 4); // All or rest?
dialog.show();
function = dialog.run ();
dialog.hide();
}
return function;
}
boost::shared_ptr<AudioTrack>
Editor::get_nth_selected_audio_track (int nth) const
{
AudioTimeAxisView* atv;
TrackSelection::iterator x;
for (x = selection->tracks.begin(); nth > 0 && x != selection->tracks.end(); ++x) {
atv = dynamic_cast<AudioTimeAxisView*>(*x);
if (!atv) {
continue;
} else if (atv->is_audio_track()) {
--nth;
}
}
if (x == selection->tracks.end()) {
atv = dynamic_cast<AudioTimeAxisView*>(selection->tracks.back());
} else {
atv = dynamic_cast<AudioTimeAxisView*>(*x);
}
if (!atv || !atv->is_audio_track()) {
return boost::shared_ptr<AudioTrack>();
}
return atv->audio_track();
}
boost::shared_ptr<MidiTrack>
Editor::get_nth_selected_midi_track (int nth) const
{
MidiTimeAxisView* mtv;
TrackSelection::iterator x;
for (x = selection->tracks.begin(); nth > 0 && x != selection->tracks.end(); ++x) {
mtv = dynamic_cast<MidiTimeAxisView*>(*x);
if (!mtv) {
continue;
} else if (mtv->is_midi_track()) {
--nth;
}
}
if (x == selection->tracks.end()) {
mtv = dynamic_cast<MidiTimeAxisView*>(selection->tracks.back());
} else {
mtv = dynamic_cast<MidiTimeAxisView*>(*x);
}
if (!mtv || !mtv->is_midi_track()) {
return boost::shared_ptr<MidiTrack>();
}
return mtv->midi_track();
}
bool
Editor::idle_do_import (vector<ustring> paths, ImportDisposition chns, ImportMode mode, SrcQuality quality, nframes64_t& pos)
{
_do_import (paths, chns, mode, quality, pos);
return false;
}
void
Editor::do_import (vector<ustring> paths, ImportDisposition chns, ImportMode mode, SrcQuality quality, nframes64_t& pos)
{
#ifdef GTKOSX
Glib::signal_idle().connect (bind (mem_fun (*this, &Editor::idle_do_import), paths, chns, mode, quality, pos));
#else
_do_import (paths, chns, mode, quality, pos);
#endif
}
void
Editor::_do_import (vector<ustring> paths, ImportDisposition chns, ImportMode mode, SrcQuality quality, nframes64_t& pos)
{
boost::shared_ptr<Track> track;
vector<ustring> to_import;
bool ok = true;
int nth = 0;
if (interthread_progress_window == 0) {
build_interthread_progress_window ();
}
if (chns == Editing::ImportMergeFiles) {
/* create 1 region from all paths, add to 1 track,
ignore "track"
*/
bool cancel = false;
for (vector<ustring>::iterator a = paths.begin(); a != paths.end() && ok; ++a) {
int check = check_whether_and_how_to_import(*a, false);
if (check == 2) {
cancel = true;
break;
}
}
if (!cancel) {
if (import_sndfiles (paths, mode, quality, pos, 1, 1, track, false)) {
ok = false;
}
}
} else {
bool replace = false;
for (vector<ustring>::iterator a = paths.begin(); a != paths.end() && ok; ++a) {
int check = check_whether_and_how_to_import(*a, true);
if (check == 2 ) {
// skip
continue;
}
if (check == 0) {
fatal << "Updating existing sources should be disabled!" << endl;
replace = true;
} else if (check == 1) {
replace = false;
}
switch (chns) {
case Editing::ImportDistinctFiles:
to_import.clear ();
to_import.push_back (*a);
if (mode == Editing::ImportToTrack) {
track = get_nth_selected_audio_track (nth++);
}
if (import_sndfiles (to_import, mode, quality, pos, 1, -1, track, replace)) {
ok = false;
}
break;
case Editing::ImportDistinctChannels:
to_import.clear ();
to_import.push_back (*a);
if (import_sndfiles (to_import, mode, quality, pos, -1, -1, track, replace)) {
ok = false;
}
break;
case Editing::ImportSerializeFiles:
to_import.clear ();
to_import.push_back (*a);
/* create 1 region from this path, add to 1 track,
reuse "track" across paths
*/
if (import_sndfiles (to_import, mode, quality, pos, 1, 1, track, replace)) {
ok = false;
}
break;
case Editing::ImportMergeFiles:
// Not entered
break;
}
}
if (ok) {
session->save_state ("");
}
interthread_progress_window->hide_all ();
}
}
bool
Editor::idle_do_embed (vector<ustring> paths, ImportDisposition chns, ImportMode mode, nframes64_t& pos)
{
_do_embed (paths, chns, mode, pos);
return false;
}
void
Editor::do_embed (vector<ustring> paths, ImportDisposition chns, ImportMode mode, nframes64_t& pos)
{
#ifdef GTKOSX
Glib::signal_idle().connect (bind (mem_fun (*this, &Editor::idle_do_embed), paths, chns, mode, pos));
#else
_do_embed (paths, chns, mode, pos);
#endif
}
void
Editor::_do_embed (vector<ustring> paths, ImportDisposition chns, ImportMode mode, nframes64_t& pos)
{
boost::shared_ptr<Track> track;
bool check_sample_rate = true;
bool ok = false;
vector<ustring> to_embed;
bool multi = paths.size() > 1;
int nth = 0;
switch (chns) {
case Editing::ImportDistinctFiles:
for (vector<ustring>::iterator a = paths.begin(); a != paths.end(); ++a) {
to_embed.clear ();
to_embed.push_back (*a);
if (mode == Editing::ImportToTrack) {
track = get_nth_selected_audio_track (nth++);
}
if (embed_sndfiles (to_embed, multi, check_sample_rate, mode, pos, 1, -1, track) < -1) {
goto out;
}
}
break;
case Editing::ImportDistinctChannels:
for (vector<ustring>::iterator a = paths.begin(); a != paths.end(); ++a) {
to_embed.clear ();
to_embed.push_back (*a);
if (embed_sndfiles (to_embed, multi, check_sample_rate, mode, pos, -1, -1, track) < -1) {
goto out;
}
}
break;
case Editing::ImportMergeFiles:
if (embed_sndfiles (paths, multi, check_sample_rate, mode, pos, 1, 1, track) < -1) {
goto out;
}
break;
case Editing::ImportSerializeFiles:
for (vector<ustring>::iterator a = paths.begin(); a != paths.end(); ++a) {
to_embed.clear ();
to_embed.push_back (*a);
if (embed_sndfiles (to_embed, multi, check_sample_rate, mode, pos, 1, 1, track) < -1) {
goto out;
}
}
break;
}
ok = true;
out:
if (ok) {
session->save_state ("");
}
}
int
Editor::import_sndfiles (vector<ustring> paths, ImportMode mode, SrcQuality quality, nframes64_t& pos,
int target_regions, int target_tracks, boost::shared_ptr<Track>& track, bool replace)
{
WindowTitle title = string_compose (_("importing %1"), paths.front());
interthread_progress_window->set_title (title.get_string());
interthread_progress_window->set_position (Gtk::WIN_POS_MOUSE);
interthread_progress_bar.set_fraction (0.0f);
interthread_cancel_label.set_text (_("Cancel Import"));
current_interthread_info = &import_status;
import_status.paths = paths;
import_status.done = false;
import_status.cancel = false;
import_status.freeze = false;
import_status.done = 0.0;
import_status.quality = quality;
import_status.replace_existing_source = replace;
interthread_progress_connection = Glib::signal_timeout().connect
(bind (mem_fun(*this, &Editor::import_progress_timeout), (gpointer) 0), 500);
track_canvas->get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
ARDOUR_UI::instance()->flush_pending ();
/* start import thread for this spec. this will ultimately call Session::import_audiofiles()
and if successful will add the file(s) as a region to the session region list.
*/
pthread_create_and_store ("import", &import_status.thread, 0, _import_thread, this);
pthread_detach (import_status.thread);
while (!(import_status.done || import_status.cancel)) {
gtk_main_iteration ();
}
interthread_progress_window->hide ();
import_status.done = true;
interthread_progress_connection.disconnect ();
/* import thread finished - see if we should build a new track */
boost::shared_ptr<AudioRegion> r;
if (import_status.cancel || import_status.sources.empty()) {
goto out;
}
if (add_sources (paths, import_status.sources, pos, mode, target_regions, target_tracks, track, false) == 0) {
session->save_state ("");
}
out:
track_canvas->get_window()->set_cursor (*current_canvas_cursor);
return 0;
}
int
Editor::embed_sndfiles (vector<Glib::ustring> paths, bool multifile,
bool& check_sample_rate, ImportMode mode, nframes64_t& pos, int target_regions, int target_tracks,
boost::shared_ptr<Track>& track)
{
boost::shared_ptr<AudioFileSource> source;
SourceList sources;
string linked_path;
SoundFileInfo finfo;
int ret = 0;
track_canvas->get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
ARDOUR_UI::instance()->flush_pending ();
for (vector<Glib::ustring>::iterator p = paths.begin(); p != paths.end(); ++p) {
ustring path = *p;
/* lets see if we can link it into the session */
sys::path tmp = session->session_directory().sound_path() / Glib::path_get_basename(path);
linked_path = tmp.to_string();
if (link (path.c_str(), linked_path.c_str()) == 0) {
/* there are many reasons why link(2) might have failed.
but if it succeeds, we now have a link in the
session sound dir that will protect against
unlinking of the original path. nice.
*/
path = linked_path;
} else {
/* one possible reason is that its already linked */
if (errno == EEXIST) {
struct stat sb;
if (stat (linked_path.c_str(), &sb) == 0) {
if (sb.st_nlink > 1) { // its a hard link, assume its the one we want
path = linked_path;
}
}
}
}
/* note that we temporarily truncated _id at the colon */
string error_msg;
if (!AudioFileSource::get_soundfile_info (path, finfo, error_msg)) {
error << string_compose(_("Editor: cannot open file \"%1\", (%2)"), path, error_msg ) << endmsg;
goto out;
}
if (check_sample_rate && (finfo.samplerate != (int) session->frame_rate())) {
vector<string> choices;
if (multifile) {
choices.push_back (_("Cancel entire import"));
choices.push_back (_("Don't embed it"));
choices.push_back (_("Embed all without questions"));
Gtkmm2ext::Choice rate_choice (
string_compose (_("%1\nThis audiofile's sample rate doesn't match the session sample rate!"),
short_path (path, 40)),
choices, false);
int resx = rate_choice.run ();
switch (resx) {
case 0: /* stop a multi-file import */
ret = -2;
goto out;
case 1: /* don't embed this one */
ret = -1;
goto out;
case 2: /* do it, and the rest without asking */
check_sample_rate = false;
break;
case 3: /* do it */
break;
default:
ret = -2;
goto out;
}
} else {
choices.push_back (_("Cancel"));
choices.push_back (_("Embed it anyway"));
Gtkmm2ext::Choice rate_choice (
string_compose (_("%1\nThis audiofile's sample rate doesn't match the session sample rate!"), path),
choices, false);
int resx = rate_choice.run ();
switch (resx) {
case 0: /* don't import */
ret = -1;
goto out;
case 1: /* do it */
break;
default:
ret = -2;
goto out;
}
}
}
track_canvas->get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
for (int n = 0; n < finfo.channels; ++n) {
try {
/* check if we have this thing embedded already */
boost::shared_ptr<Source> s;
if ((s = session->source_by_path_and_channel (path, n)) == 0) {
cerr << "add embed/import source with defer_peaks = true\n";
source = boost::dynamic_pointer_cast<AudioFileSource> (SourceFactory::createReadable
(DataType::AUDIO, *session, path, n,
(mode == ImportAsTapeTrack ?
AudioFileSource::Destructive :
AudioFileSource::Flag (0)),
true, true));
} else {
source = boost::dynamic_pointer_cast<AudioFileSource> (s);
}
sources.push_back(source);
}
catch (failed_constructor& err) {
error << string_compose(_("could not open %1"), path) << endmsg;
goto out;
}
ARDOUR_UI::instance()->flush_pending ();
}
}
if (sources.empty()) {
goto out;
}
ret = add_sources (paths, sources, pos, mode, target_regions, target_tracks, track, true);
out:
track_canvas->get_window()->set_cursor (*current_canvas_cursor);
return ret;
}
int
Editor::add_sources (vector<Glib::ustring> paths, SourceList& sources, nframes64_t& pos, ImportMode mode,
int target_regions, int target_tracks, boost::shared_ptr<Track>& track, bool add_channel_suffix)
{
vector<boost::shared_ptr<Region> > regions;
ustring region_name;
uint32_t input_chan = 0;
uint32_t output_chan = 0;
if (pos == -1) { // "use timestamp"
if (sources[0]->natural_position() != 0) {
pos = sources[0]->natural_position();
} else {
pos = get_preferred_edit_position ();
}
}
// kludge (for MIDI we're abusing "channel" for "track" here)
if (paths.front().rfind(".mid") != Glib::ustring::npos)
target_regions = -1;
if (target_regions == 1) {
/* take all the sources we have and package them up as a region */
region_name = region_name_from_path (paths.front(), (sources.size() > 1), false);
regions.push_back (RegionFactory::create (sources, 0, sources[0]->length(), region_name, 0,
Region::Flag (Region::DefaultFlags|Region::WholeFile|Region::External)));
} else if (target_regions == -1) {
/* take each source and create a region for each one */
SourceList just_one;
SourceList::iterator x;
uint32_t n;
for (n = 0, x = sources.begin(); x != sources.end(); ++x, ++n) {
just_one.clear ();
just_one.push_back (*x);
region_name = region_name_from_path ((*x)->path(), false, false, sources.size(), n);
regions.push_back (RegionFactory::create (just_one, 0, (*x)->length(), region_name, 0,
Region::Flag (Region::DefaultFlags|Region::WholeFile|Region::External)));
}
}
if (target_regions == 1) {
input_chan = regions.front()->n_channels();
} else {
if (target_tracks == 1) {
input_chan = regions.size();
} else {
input_chan = 1;
}
}
if (Config->get_output_auto_connect() & AutoConnectMaster) {
output_chan = (session->master_out() ? session->master_out()->n_inputs().n_audio() : input_chan);
} else {
output_chan = input_chan;
}
int n = 0;
for (vector<boost::shared_ptr<Region> >::iterator r = regions.begin(); r != regions.end(); ++r, ++n) {
finish_bringing_in_material (*r, input_chan, output_chan, pos, mode, track);
if (target_tracks != 1) {
track.reset ();
} else {
pos += (*r)->length();
}
}
/* setup peak file building in another thread */
for (SourceList::iterator x = sources.begin(); x != sources.end(); ++x) {
SourceFactory::setup_peakfile (*x, true);
}
return 0;
}
int
Editor::finish_bringing_in_material (boost::shared_ptr<Region> region, uint32_t in_chans, uint32_t out_chans, nframes64_t& pos,
ImportMode mode, boost::shared_ptr<Track>& existing_track)
{
boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(region);
boost::shared_ptr<MidiRegion> mr = boost::dynamic_pointer_cast<MidiRegion>(region);
switch (mode) {
case ImportAsRegion:
/* relax, its been done */
break;
case ImportToTrack:
{
if (!existing_track) {
if (ar) {
existing_track = get_nth_selected_audio_track (0);
} else if (mr) {
existing_track = get_nth_selected_midi_track (0);
}
if (!existing_track) {
return -1;
}
}
boost::shared_ptr<Playlist> playlist = existing_track->diskstream()->playlist();
boost::shared_ptr<Region> copy (RegionFactory::create (region));
begin_reversible_command (_("insert file"));
XMLNode &before = playlist->get_state();
playlist->add_region (copy, pos);
session->add_command (new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
commit_reversible_command ();
break;
}
case ImportAsTrack:
{
if (!existing_track) {
if (ar) {
list<boost::shared_ptr<AudioTrack> > at (session->new_audio_track (in_chans, out_chans, Normal, 1));
if (at.empty()) {
return -1;
}
existing_track = at.front();
} else if (mr) {
list<boost::shared_ptr<MidiTrack> > mt (session->new_midi_track (Normal, 1));
if (mt.empty()) {
return -1;
}
existing_track = mt.front();
}
existing_track->set_name (region->name());
}
boost::shared_ptr<Region> copy (RegionFactory::create (region));
existing_track->diskstream()->playlist()->add_region (copy, pos);
break;
}
case ImportAsTapeTrack:
{
if (!ar)
return -1;
list<boost::shared_ptr<AudioTrack> > at (session->new_audio_track (in_chans, out_chans, Destructive));
if (!at.empty()) {
boost::shared_ptr<Region> copy (RegionFactory::create (region));
at.front()->set_name (basename_nosuffix (copy->name()));
at.front()->diskstream()->playlist()->add_region (copy, pos);
}
break;
}
}
return 0;
}
void *
Editor::_import_thread (void *arg)
{
PBD::ThreadCreated (pthread_self(), X_("Import"));
Editor *ed = (Editor *) arg;
return ed->import_thread ();
}
void *
Editor::import_thread ()
{
session->import_audiofiles (import_status);
pthread_exit_pbd (0);
/*NOTREACHED*/
return 0;
}
gint
Editor::import_progress_timeout (void *arg)
{
bool reset = false;
if (!interthread_progress_window->is_visible()) {
interthread_progress_window->show_all ();
reset = true;
}
interthread_progress_label.set_text (import_status.doing_what);
if (import_status.freeze) {
interthread_cancel_button.set_sensitive(false);
} else {
interthread_cancel_button.set_sensitive(true);
}
if (import_status.doing_what == "building peak files") {
interthread_progress_bar.pulse ();
return FALSE;
} else {
float val = import_status.progress;
interthread_progress_bar.set_fraction (min (max (0.0f, val), 1.0f));
}
if (reset) {
/* the window is now visible, speed up the updates */
interthread_progress_connection.disconnect ();
interthread_progress_connection = Glib::signal_timeout().connect
(bind (mem_fun(*this, &Editor::import_progress_timeout), (gpointer) 0), 100);
return false;
} else {
return !(import_status.done || import_status.cancel);
}
}