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livetrax/gtk2_ardour/sfdb_ui.cc

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/*
Copyright (C) 2005 Paul Davis
Written by Taybin Rutkin
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 <map>
#include <cerrno>
#include <sndfile.h>
#include <pbd/basename.h>
#include <gtkmm/box.h>
#include <gtkmm/stock.h>
#include <ardour/audio_library.h>
#include <ardour/audioregion.h>
#include <ardour/sndfile_helpers.h>
#include <ardour/sndfilesource.h>
#include "gui_thread.h"
#include "prompter.h"
#include "sfdb_ui.h"
#include "i18n.h"
using namespace ARDOUR;
std::string length2string (const int32_t frames, const int32_t sample_rate);
SoundFileBox::SoundFileBox ()
:
_session(0),
current_pid(0),
fields(Gtk::ListStore::create(label_columns)),
main_box (false, 3),
top_box (true, 4),
bottom_box (true, 4),
play_btn(_("Play")),
stop_btn(_("Stop")),
add_field_btn(_("Add Field...")),
remove_field_btn(_("Remove Field"))
{
set_name (X_("SoundFileBox"));
border_frame.set_label (_("Soundfile Info"));
border_frame.add (main_box);
pack_start (border_frame);
set_border_width (4);
main_box.set_border_width (4);
main_box.pack_start(length, false, false);
main_box.pack_start(format, false, false);
main_box.pack_start(channels, false, false);
main_box.pack_start(samplerate, false, false);
main_box.pack_start(field_view, true, true);
main_box.pack_start(top_box, false, false);
main_box.pack_start(bottom_box, false, false);
field_view.set_model (fields);
field_view.set_size_request(200, 150);
field_view.append_column (_("Field"), label_columns.field);
field_view.append_column_editable (_("Value"), label_columns.data);
top_box.set_homogeneous(true);
top_box.pack_start(add_field_btn);
top_box.pack_start(remove_field_btn);
remove_field_btn.set_sensitive(false);
bottom_box.set_homogeneous(true);
bottom_box.pack_start(play_btn);
bottom_box.pack_start(stop_btn);
play_btn.signal_clicked().connect (mem_fun (*this, &SoundFileBox::play_btn_clicked));
stop_btn.signal_clicked().connect (mem_fun (*this, &SoundFileBox::stop_btn_clicked));
add_field_btn.signal_clicked().connect
(mem_fun (*this, &SoundFileBox::add_field_clicked));
remove_field_btn.signal_clicked().connect
(mem_fun (*this, &SoundFileBox::remove_field_clicked));
field_view.get_selection()->signal_changed().connect (mem_fun (*this, &SoundFileBox::field_selected));
Library->fields_changed.connect (mem_fun (*this, &SoundFileBox::setup_fields));
show_all();
stop_btn.hide();
}
void
SoundFileBox::set_session(Session* s)
{
_session = s;
if (!_session) {
play_btn.set_sensitive(false);
} else {
_session->AuditionActive.connect(mem_fun (*this, &SoundFileBox::audition_status_changed));
}
}
bool
SoundFileBox::setup_labels (string filename)
{
path = filename;
SNDFILE *sf;
sf_info.format = 0; // libsndfile says to clear this before sf_open().
if ((sf = sf_open ((char *) filename.c_str(), SFM_READ, &sf_info)) < 0) {
return false;
}
sf_close (sf);
if (sf_info.frames == 0 && sf_info.channels == 0 &&
sf_info.samplerate == 0 && sf_info.format == 0 &&
sf_info.sections == 0) {
/* .. ok, it's not a sound file */
return false;
}
length.set_alignment (0.0f, 0.0f);
length.set_text (string_compose("Length: %1", length2string(sf_info.frames, sf_info.samplerate)));
format.set_alignment (0.0f, 0.0f);
format.set_text (string_compose("Format: %1, %2",
sndfile_major_format(sf_info.format),
sndfile_minor_format(sf_info.format)));
channels.set_alignment (0.0f, 0.0f);
channels.set_text (string_compose("Channels: %1", sf_info.channels));
samplerate.set_alignment (0.0f, 0.0f);
samplerate.set_text (string_compose("Samplerate: %1", sf_info.samplerate));
setup_fields ();
return true;
}
void
SoundFileBox::setup_fields ()
{
ENSURE_GUI_THREAD(mem_fun (*this, &SoundFileBox::setup_fields));
fields->clear ();
vector<string> field_list;
Library->get_fields(field_list);
vector<string>::iterator i;
Gtk::TreeModel::iterator iter;
Gtk::TreeModel::Row row;
for (i = field_list.begin(); i != field_list.end(); ++i) {
if (!(*i == _("channels") || *i == _("samplerate") ||
*i == _("resolution") || *i == _("format"))) {
iter = fields->append();
row = *iter;
string value = Library->get_field(path, *i);
row[label_columns.field] = *i;
row[label_columns.data] = value;
}
}
}
void
SoundFileBox::play_btn_clicked ()
{
if (!_session) {
return;
}
_session->cancel_audition();
if (access(path.c_str(), R_OK)) {
warning << string_compose(_("Could not read file: %1 (%2)."), path, strerror(errno)) << endmsg;
return;
}
static std::map<string, AudioRegion*> region_cache;
if (region_cache.find (path) == region_cache.end()) {
AudioRegion::SourceList srclist;
SndFileSource* sfs;
for (int n = 0; n < sf_info.channels; ++n) {
try {
sfs = new SndFileSource(path+":"+string_compose("%1", n), false);
srclist.push_back(sfs);
} catch (failed_constructor& err) {
error << _("Could not access soundfile: ") << path << endmsg;
return;
}
}
if (srclist.empty()) {
return;
}
string result;
_session->region_name (result, PBD::basename(srclist[0]->name()), false);
AudioRegion* a_region = new AudioRegion(srclist, 0, srclist[0]->length(), result, 0, Region::DefaultFlags, false);
region_cache[path] = a_region;
}
play_btn.hide();
stop_btn.show();
_session->audition_region(*region_cache[path]);
}
void
SoundFileBox::stop_btn_clicked ()
{
if (_session) {
_session->cancel_audition();
play_btn.show();
stop_btn.hide();
}
}
void
SoundFileBox::add_field_clicked ()
{
ArdourPrompter prompter (true);
string name;
prompter.set_prompt (_("Name for field"));
switch (prompter.run ()) {
case Gtk::RESPONSE_ACCEPT:
prompter.get_result (name);
if (name.length()) {
Library->add_field (name);
Library->save_changes ();
}
break;
default:
break;
}
}
void
SoundFileBox::remove_field_clicked ()
{
field_view.get_selection()->selected_foreach_iter(mem_fun(*this, &SoundFileBox::delete_row));
Library->save_changes ();
}
void
SoundFileBox::delete_row (const Gtk::TreeModel::iterator& iter)
{
Gtk::TreeModel::Row row = *iter;
Library->remove_field(row[label_columns.field]);
}
void
SoundFileBox::audition_status_changed (bool active)
{
ENSURE_GUI_THREAD(bind (mem_fun (*this, &SoundFileBox::audition_status_changed), active));
if (!active) {
stop_btn_clicked ();
}
}
void
SoundFileBox::field_selected ()
{
if (field_view.get_selection()->count_selected_rows()) {
remove_field_btn.set_sensitive(true);
} else {
remove_field_btn.set_sensitive(false);
}
}
SoundFileBrowser::SoundFileBrowser (std::string title)
:
ArdourDialog(title),
chooser(Gtk::FILE_CHOOSER_ACTION_OPEN)
{
get_vbox()->pack_start(chooser);
chooser.set_preview_widget(preview);
chooser.signal_update_preview().connect(mem_fun(*this, &SoundFileBrowser::update_preview));
}
void
SoundFileBrowser::set_session (Session* s)
{
preview.set_session(s);
}
void
SoundFileBrowser::update_preview ()
{
chooser.set_preview_widget_active(preview.setup_labels(chooser.get_filename()));
}
SoundFileChooser::SoundFileChooser (std::string title)
:
SoundFileBrowser(title)
{
add_button (Gtk::Stock::OPEN, Gtk::RESPONSE_OK);
add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
show_all ();
}
SoundFileOmega::SoundFileOmega (std::string title)
:
SoundFileBrowser(title),
embed_btn (_("Embed")),
import_btn (_("Import")),
split_check (_("Split Channels"))
{
get_action_area()->pack_start(embed_btn);
get_action_area()->pack_start(import_btn);
add_button (Gtk::Stock::CLOSE, Gtk::RESPONSE_CLOSE);
chooser.set_extra_widget(split_check);
embed_btn.signal_clicked().connect (mem_fun (*this, &SoundFileOmega::embed_clicked));
import_btn.signal_clicked().connect (mem_fun (*this, &SoundFileOmega::import_clicked));
show_all ();
}
void
SoundFileOmega::embed_clicked ()
{
Embedded (chooser.get_filenames(), split_check.get_active());
}
void
SoundFileOmega::import_clicked ()
{
Imported (chooser.get_filenames(), split_check.get_active());
}
std::string
length2string (const int32_t frames, const int32_t sample_rate)
{
int secs = (int) (frames / (float) sample_rate);
int hrs = secs / 3600;
secs -= (hrs * 3600);
int mins = secs / 60;
secs -= (mins * 60);
int total_secs = (hrs * 3600) + (mins * 60) + secs;
int frames_remaining = frames - (total_secs * sample_rate);
float fractional_secs = (float) frames_remaining / sample_rate;
char duration_str[32];
sprintf (duration_str, "%02d:%02d:%05.2f", hrs, mins, (float) secs + fractional_secs);
return duration_str;
}