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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.

*/

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

#include <sys/stat.h>

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

#include <pbd/convert.h>
#include <pbd/tokenizer.h>

#include <gtkmm2ext/utils.h>

#include <ardour/audio_library.h>
#include <ardour/audioregion.h>
#include <ardour/audiofilesource.h>
#include <ardour/region_factory.h>
#include <ardour/source_factory.h>

#include "ardour_ui.h"
#include "editing.h"
#include "gui_thread.h"
#include "prompter.h"
#include "sfdb_ui.h"
#include "utils.h"

#include "i18n.h"

using namespace ARDOUR;
using namespace PBD;
using namespace std;

Glib::ustring SoundFileBrowser::persistent_folder;

SoundFileBox::SoundFileBox ()
      :
      _session(0),
      current_pid(0),
      main_box (false, 3),
      bottom_box (true, 4),
      play_btn(_("Play")),
      stop_btn(_("Stop")),
      apply_btn(_("Apply"))
{
      set_name (X_("SoundFileBox"));
      
      set_size_request (250, 500);
      
      border_frame.set_label (_("Soundfile Info"));
      border_frame.add (main_box);

      Gtk::Label* tag_label = manage(new Gtk::Label(_("comma seperated tags")));

      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(timecode, false, false);
      main_box.pack_start(*tag_label, false, false);
      main_box.pack_start(tags_entry, false, false);
      main_box.pack_start(apply_btn, false, false);
      main_box.pack_start(bottom_box, false, 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));
      apply_btn.signal_clicked().connect (mem_fun (*this, &SoundFileBox::apply_btn_clicked));
      tags_entry.signal_activate().connect (mem_fun (*this, &SoundFileBox::apply_btn_clicked));

      length.set_alignment (0.0f, 0.0f);
      format.set_alignment (0.0f, 0.0f);
      channels.set_alignment (0.0f, 0.0f);
      samplerate.set_alignment (0.0f, 0.0f);
      timecode.set_alignment (0.0f, 0.0f);

      stop_btn.set_no_show_all (true);
      stop_btn.hide();
      
      show_all();
}

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;

      string error_msg;

      if(!AudioFileSource::get_soundfile_info (filename, sf_info, error_msg)) {
            length.set_text (_("Length: n/a"));
            format.set_text (_("Format: n/a"));
            channels.set_text (_("Channels: n/a"));
            samplerate.set_text (_("Samplerate: n/a"));
            timecode.set_text (_("Timecode: n/a"));
            tags_entry.set_text ("");
            
            tags_entry.set_sensitive (false);
            play_btn.set_sensitive (false);
            apply_btn.set_sensitive (false);
            
            return false;
      }

      length.set_text (string_compose(_("Length: %1"), length2string(sf_info.length, sf_info.samplerate)));
      format.set_text (sf_info.format_name);
      channels.set_text (string_compose(_("Channels: %1"), sf_info.channels));
      samplerate.set_text (string_compose(_("Samplerate: %1"), sf_info.samplerate));
      timecode.set_text (string_compose (_("Timecode: %1"), length2string(sf_info.timecode, sf_info.samplerate)));

      vector<string> tags = Library->get_tags (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.set_text (tag_string.str());
      
      tags_entry.set_sensitive (true);
      if (_session) {
            play_btn.set_sensitive (true);
      }
      apply_btn.set_sensitive (true);
      
      return true;
}

bool
SoundFileBox::tags_entry_left (GdkEventFocus* event)
{     
      apply_btn_clicked ();
      
      return true;
}

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;
      }

      typedef std::map<string, boost::shared_ptr<AudioRegion> > RegionCache; 
      static  RegionCache region_cache;
      RegionCache::iterator the_region;

      if ((the_region = region_cache.find (path)) == region_cache.end()) {
            SourceList srclist;
            boost::shared_ptr<AudioFileSource> afs;
            
            for (int n = 0; n < sf_info.channels; ++n) {
                  try {
                        afs = boost::dynamic_pointer_cast<AudioFileSource> (SourceFactory::createReadable (*_session, path, n, AudioFileSource::Flag (0)));
                        srclist.push_back(afs);

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

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

            string rname;

            _session->region_name (rname, Glib::path_get_basename(srclist[0]->name()), false);

            pair<string,boost::shared_ptr<AudioRegion> > newpair;
            pair<RegionCache::iterator,bool> res;

            newpair.first = path;
            newpair.second = boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (srclist, 0, srclist[0]->length(), rname, 0, Region::DefaultFlags, false));

            res = region_cache.insert (newpair);
            the_region = res.first;
      }

      play_btn.hide();
      stop_btn.show();

      boost::shared_ptr<Region> r = boost::static_pointer_cast<Region> (the_region->second);

      _session->audition_region(r);
}

void
SoundFileBox::stop_btn_clicked ()
{
      if (_session) {
            _session->cancel_audition();
            play_btn.show();
            stop_btn.hide();
      }
}

void
SoundFileBox::apply_btn_clicked ()
{
      string tag_string = tags_entry.get_text ();

      vector<string> tags;

    if (!PBD::tokenize (tag_string, string(","), std::back_inserter (tags), true)) {
            warning << _("SoundFileBox: Could not tokenize string: ") << tag_string << endmsg;
            return;
      }
      
      Library->set_tags (path, tags);
      Library->save_changes ();
}

void
SoundFileBox::audition_status_changed (bool active)
{
      ENSURE_GUI_THREAD(bind (mem_fun (*this, &SoundFileBox::audition_status_changed), active));
      
      if (!active) {
            stop_btn_clicked ();
      }
}

// this needs to be kept in sync with the ImportMode enum defined in editing.h and editing_syms.h.
static const char *import_mode_strings[] = {
      N_("Add to Region list"),
      N_("Add to selected Track(s)"),
      N_("Add as new Track(s)"),
      N_("Add as new Tape Track(s)"),
      0
};

SoundFileBrowser::SoundFileBrowser (string title, ARDOUR::Session* s)
      : ArdourDialog (title, false),
        chooser (Gtk::FILE_CHOOSER_ACTION_OPEN),
        found_list (Gtk::ListStore::create(found_list_columns)),
        found_list_view (found_list),
        found_search_btn (_("Search"))
{
      set_default_size (700, 500);
      Gtk::HBox* hbox = manage(new Gtk::HBox);
      hbox->pack_start(notebook);
      hbox->pack_start(preview, Gtk::PACK_SHRINK);
      get_vbox()->pack_start(*hbox);

      hbox = manage(new Gtk::HBox);
      hbox->pack_start (found_entry);
      hbox->pack_start (found_search_btn);
      
      Gtk::VBox* vbox = manage(new Gtk::VBox);
      vbox->pack_start (*hbox, Gtk::PACK_SHRINK);
      vbox->pack_start (found_list_view);
      found_list_view.append_column(_("Paths"), found_list_columns.pathname);
      
      notebook.append_page (chooser, _("Files"));
      notebook.append_page (*vbox, _("Tags"));

      found_list_view.get_selection()->set_mode (Gtk::SELECTION_MULTIPLE);

      custom_filter.add_custom (Gtk::FILE_FILTER_FILENAME, mem_fun(*this, &SoundFileBrowser::on_custom));
      custom_filter.set_name (_("Probable audio files"));

      matchall_filter.add_pattern ("*.*");
      matchall_filter.set_name (_("All files"));

      chooser.add_filter (custom_filter);
      chooser.add_filter (matchall_filter);
      chooser.set_select_multiple (true);
      chooser.signal_update_preview().connect(mem_fun(*this, &SoundFileBrowser::update_preview));

      if (!persistent_folder.empty()) {
            chooser.set_current_folder (persistent_folder);
      }

      found_list_view.get_selection()->signal_changed().connect(mem_fun(*this, &SoundFileBrowser::found_list_view_selected));
      
      found_search_btn.signal_clicked().connect(mem_fun(*this, &SoundFileBrowser::found_search_clicked));
      found_entry.signal_activate().connect(mem_fun(*this, &SoundFileBrowser::found_search_clicked));
      
      show_all ();
      
      set_session (s);
}

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

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

bool
SoundFileBrowser::on_custom (const Gtk::FileFilter::Info& filter_info)
{
      return AudioFileSource::safe_file_extension(filter_info.filename);
}

void
SoundFileBrowser::update_preview ()
{
      preview.setup_labels(chooser.get_filename());
}

void
SoundFileBrowser::found_list_view_selected ()
{
      string file;
      
      Gtk::TreeView::Selection::ListHandle_Path rows = found_list_view.get_selection()->get_selected_rows ();
      
      if (!rows.empty()) {
            Gtk::TreeIter iter = found_list->get_iter(*rows.begin());
            file = (*iter)[found_list_columns.pathname];
            chooser.set_filename (file);
      }
      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) {
            Gtk::TreeModel::iterator new_row = found_list->append();
            Gtk::TreeModel::Row row = *new_row;
            row[found_list_columns.pathname] = *i;
      }
}

SoundFileChooser::SoundFileChooser (string title, ARDOUR::Session* s)
      :
      SoundFileBrowser(title, s)
{
      add_button (Gtk::Stock::OPEN, Gtk::RESPONSE_OK);
      add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
      
      chooser.set_select_multiple (false);
      found_list_view.get_selection()->set_mode (Gtk::SELECTION_SINGLE);
      show_all ();
}

string
SoundFileChooser::get_filename ()
{
      Gtk::TreeModel::iterator iter;
      Gtk::TreeModel::Row row;
      
      string filename;
      switch (notebook.get_current_page()) {
            case 0:
                  filename = chooser.get_filename();
            case 1:
                  iter = found_list_view.get_selection()->get_selected();
                  row = *iter;
                  filename = row[found_list_columns.pathname];
            default:
                  /* NOT REACHED */
                  return "";
      }
      
      struct stat buf;
      if (stat (filename.c_str(), &buf) || !S_ISREG(buf.st_mode)) {
            return "";
      }
      
      return filename;
}

vector<string> SoundFileOmega::mode_strings;

SoundFileOmega::SoundFileOmega (string title, ARDOUR::Session* s)
      : SoundFileBrowser (title, s),
        split_check (_("Split Channels"))
{
      ARDOUR_UI::instance()->tooltips().set_tip(split_check, 
                  _("Create a region for each channel"));

      Gtk::Button* btn = add_button (_("Embed"), ResponseEmbed);
      ARDOUR_UI::instance()->tooltips().set_tip(*btn, 
                  _("Link to an external file"));

      btn = add_button (_("Import"), ResponseImport);
      ARDOUR_UI::instance()->tooltips().set_tip(*btn, 
                  _("Copy a file to the session folder"));

      add_button (Gtk::Stock::CLOSE, Gtk::RESPONSE_CLOSE);
      
      if (mode_strings.empty()) {
            mode_strings = I18N (import_mode_strings);
      }
      Gtkmm2ext::set_popdown_strings (mode_combo, mode_strings);

      set_mode (Editing::ImportAsRegion);

      get_action_area()->pack_start (split_check);
      get_action_area()->pack_start (mode_combo);

      mode_combo.signal_changed().connect (mem_fun (*this, &SoundFileOmega::mode_changed));
      
      show_all ();
}

bool
SoundFileOmega::get_split ()
{
      return split_check.get_active();
}

vector<Glib::ustring>
SoundFileOmega::get_paths ()
{
      vector<Glib::ustring> results;
      
      int n = notebook.get_current_page ();
      
      if (n == 0) {
            vector<Glib::ustring> filenames = chooser.get_filenames();
            vector<Glib::ustring>::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);
                  }
            }
            return results;
            
      } else {
            
            typedef Gtk::TreeView::Selection::ListHandle_Path ListPath;
            
            ListPath rows = found_list_view.get_selection()->get_selected_rows ();
            for (ListPath::iterator i = rows.begin() ; i != rows.end(); ++i) {
                  Gtk::TreeIter iter = found_list->get_iter(*i);
                  string str = (*iter)[found_list_columns.pathname];
                  
                  results.push_back (str);
            }
            return results;
      }
}

void
SoundFileOmega::set_mode (Editing::ImportMode mode)
{
      mode_combo.set_active_text (mode_strings[(int)mode]);

      switch (mode) {
      case Editing::ImportAsRegion:
            split_check.set_sensitive (true);
            break;
      case Editing::ImportAsTrack:
            split_check.set_sensitive (true);
            break;
      case Editing::ImportToTrack:
            split_check.set_sensitive (false);
            break;
      case Editing::ImportAsTapeTrack:
            split_check.set_sensitive (true);
            break;
      }
}

Editing::ImportMode
SoundFileOmega::get_mode ()
{
      vector<string>::iterator i;
      uint32_t n;
      string str = mode_combo.get_active_text ();

      for (n = 0, i = mode_strings.begin (); i != mode_strings.end(); ++i, ++n) {
            if (str == (*i)) {
                  break;
            }
      }

      if (i == mode_strings.end()) {
            fatal << string_compose (_("programming error: %1"), X_("unknown import mode string")) << endmsg;
            /*NOTREACHED*/
      }

      return (Editing::ImportMode) (n);
}

void
SoundFileOmega::mode_changed ()
{
      Editing::ImportMode mode = get_mode();

      switch (mode) {
      case Editing::ImportAsRegion:
            split_check.set_sensitive (true);
            break;
      case Editing::ImportAsTrack:
            split_check.set_sensitive (true);
            break;
      case Editing::ImportToTrack:
            split_check.set_sensitive (false);
            break;
      case Editing::ImportAsTapeTrack:
            split_check.set_sensitive (true);
            break;
      }
}


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