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export_dialog.cc

/*
    Copyright (C) 1999-2003 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 <unistd.h>
#include <utility>
#include <sys/stat.h>

#include <fstream>
#include <iostream>

#include <samplerate.h>
#include <pbd/pthread_utils.h>
#include <pbd/xml++.h>
#include <pbd/dirname.h>

#include <gtk--.h>
#include <gtkmmext/utils.h>
#include <ardour/export.h>
#include <ardour/sndfile_helpers.h>
#include <ardour/audio_track.h>
#include <ardour/audioregion.h>
#include <ardour/audioengine.h>
#include <ardour/gdither.h>
#include <ardour/utils.h>

#include "export_dialog.h"
#include "check_mark.h"
#include "ardour_ui.h"
#include "public_editor.h"
#include "keyboard.h"
#include "ardour_message.h"

#include "i18n.h"

#define FRAME_SHADOW_STYLE GTK_SHADOW_IN
#define FRAME_NAME "BaseFrame"

GdkPixmap* ExportDialog::check_pixmap = 0;
GdkPixmap* ExportDialog::check_mask = 0;
GdkPixmap* ExportDialog::empty_pixmap = 0;
GdkPixmap* ExportDialog::empty_mask = 0;

using namespace std;

using namespace ARDOUR;
using namespace SigC;
using namespace Gtk;

static const gchar *sample_rates[] = {
      N_("22.05kHz"),
      N_("44.1kHz"),
      N_("48kHz"),
      N_("88.2kHz"),
      N_("96kHz"),
      N_("192kHz"),
      0
};

static const gchar *src_qualities[] = {
      N_("best"),
      N_("fastest"),
      N_("linear"),
      N_("better"),
      N_("intermediate"),
      0
};

static const gchar *dither_types[] = {
      N_("None"),
      N_("Rectangular"),
      N_("Shaped Noise"),
      N_("Triangular"),
      0
};

static const gchar* channel_strings[] = {
      N_("stereo"), 
      N_("mono"), 
      0
};

static const gchar* cue_file_types[] = {
      N_("None"), 
      N_("CUE"),
      N_("TOC"),
      0
};

ExportDialog::ExportDialog(PublicEditor& e, AudioRegion* r)
      : ArdourDialog ("export dialog"),
        editor (e),
        format_table (9, 2),
        format_frame (_("FORMAT")),
        sample_rate_label (_("SAMPLE RATE"), 0.0, 0.5),
        src_quality_label (_("CONVERSION QUALITY"), 0.0, 0.5),
        dither_type_label (_("DITHER TYPE"), 0.0, 0.5),
        cue_file_label (_("CD MARKER FILE TYPE"), 0.0, 0.5),
        channel_count_label (_("CHANNELS"), 0.0, 0.5),
        header_format_label (_("FILE TYPE"), 0.0, 0.5),
        bitdepth_format_label (_("SAMPLE FORMAT"), 0.0, 0.5),
        endian_format_label (_("SAMPLE ENDIANNESS"), 0.0, 0.5),
        cuefile_only_checkbox (_("EXPORT CD MARKER FILE ONLY")),
        file_frame (_("EXPORT TO FILE")),
        file_browse_button (_("Browse")),
        ok_button (_("Export")),
        track_selector_button (_("Specific tracks ...")),
        track_selector (3),
        master_selector (3)
{
      guint32 n;
      guint32 len;
      guint32 maxlen;

      audio_region = r;
      session = 0;
      
      set_title (_("ardour: export"));
      set_wmclass (_("ardour_export"), "Ardour");
      set_name ("ExportWindow");
      add_events (GDK_KEY_PRESS_MASK|GDK_KEY_RELEASE_MASK);

      add (vpacker);

      vpacker.set_border_width (10);
      vpacker.set_spacing (10);

      file_selector = 0;
      spec.running = false;

      file_entry.focus_in_event.connect (slot (ARDOUR_UI::generic_focus_in_event));
      file_entry.focus_out_event.connect (slot (ARDOUR_UI::generic_focus_out_event));

      file_entry.set_name ("ExportFileNameEntry");

      master_selector.set_name ("ExportTrackSelector");
      master_selector.set_usize (-1, 100);
      master_selector.set_column_min_width (0, 100);
      master_selector.set_column_min_width (1, 40);
      master_selector.set_column_auto_resize(1, true);
      master_selector.set_column_min_width (2, 40);
      master_selector.set_column_auto_resize(2, true);
      master_selector.set_column_title (0, _("Output"));
      master_selector.column_titles_show ();
      master_selector.set_selection_mode (GTK_SELECTION_MULTIPLE);
      master_selector.button_press_event.connect (slot (*this, &ExportDialog::master_selector_button_press_event));
      
      track_selector.set_name ("ExportTrackSelector");
      track_selector.set_usize (-1, 130);
      track_selector.set_column_min_width (0, 100);
      track_selector.set_column_min_width (1, 40);
      track_selector.set_column_auto_resize(1, true);
      track_selector.set_column_min_width (2, 40);
      track_selector.set_column_auto_resize(2, true);
      track_selector.set_column_title (0, _("Track"));
      track_selector.column_titles_show ();
      track_selector.set_selection_mode (GTK_SELECTION_MULTIPLE);
      track_selector.button_press_event.connect (slot (*this, &ExportDialog::track_selector_button_press_event));

      check_pixmap = gdk_pixmap_colormap_create_from_xpm_d (NULL,
                  gtk_widget_get_colormap(GTK_WIDGET(track_selector.gtkobj())),
                  &check_mask, NULL, (gchar**) check_xpm);
      empty_pixmap = gdk_pixmap_colormap_create_from_xpm_d (NULL,
                  gtk_widget_get_colormap(GTK_WIDGET(track_selector.gtkobj())),
                  &empty_mask, NULL, (gchar**) empty_xpm);

      progress_bar.set_show_text (false);
      progress_bar.set_orientation (GTK_PROGRESS_LEFT_TO_RIGHT);
      progress_bar.set_name ("ExportProgress");

      format_frame.add (format_table);
      format_frame.set_name (FRAME_NAME);

      track_scroll.set_policy(GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
      master_scroll.set_policy(GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);

      vpacker.pack_start (file_frame, false, false);

      hpacker.set_spacing (5);
      hpacker.set_border_width (5);
      hpacker.pack_start (format_frame, false, false);

      if (!audio_region) {

            master_scroll.add (master_selector);
            track_scroll.add (track_selector);

            master_scroll.set_usize (220, 100);
            track_scroll.set_usize (220, 100);

            
            
            /* we may hide some of these later */
            track_vpacker.pack_start (master_scroll, true, true);
            track_vpacker.pack_start (track_scroll, true, true);
            track_vpacker.pack_start (track_selector_button, false);

            hpacker.pack_start (track_vpacker, true, true);
      }

      vpacker.pack_start (hpacker, true, true);
      
      track_selector_button.set_name ("EditorGTKButton");
      track_selector_button.clicked.connect (slot (*this, &ExportDialog::track_selector_button_click));

      vpacker.pack_start (button_box, false, false);
      vpacker.pack_start (progress_bar, false, false);

      Gtkmmext::set_usize_to_display_given_text (file_entry, X_("Kg/quite/a/reasonable/size/for/files/i/think"), 5, 12);

      file_hbox.set_spacing (5);
      file_hbox.set_border_width (5);
      file_hbox.pack_start (file_entry, true, true);
      file_hbox.pack_start (file_browse_button, false, false);

      file_frame.add (file_hbox);
      file_frame.set_border_width (5);
      file_frame.set_name (FRAME_NAME);

      sample_rate_combo.set_popdown_strings (internationalize(sample_rates));
      src_quality_combo.set_popdown_strings (internationalize (src_qualities));
      dither_type_combo.set_popdown_strings (internationalize (dither_types));
      channel_count_combo.set_popdown_strings (internationalize (channel_strings));
      header_format_combo.set_popdown_strings (internationalize ((const char **) sndfile_header_formats_strings));
      bitdepth_format_combo.set_popdown_strings (internationalize ((const char **) sndfile_bitdepth_formats_strings));
      endian_format_combo.set_popdown_strings (internationalize ((const char **) sndfile_endian_formats_strings));
      cue_file_combo.set_popdown_strings (internationalize (cue_file_types));

      /* this will re-sensitized as soon as a non RIFF/WAV
         header format is chosen.
      */

      endian_format_combo.set_sensitive (false);

      /* determine longest strings at runtime */


      maxlen = 0;
      const char *longest = "gl";
      string longest_str;

      for (n = 0; n < SNDFILE_HEADER_FORMATS; ++n) {
            if ((len = strlen (sndfile_header_formats_strings[n])) > maxlen) {
                  maxlen = len;
                  longest = sndfile_header_formats_strings[n];
            }
      }

      for (n = 0; n < SNDFILE_BITDEPTH_FORMATS; ++n) {
            if ((len = strlen (sndfile_bitdepth_formats_strings[n])) > maxlen) {
                  maxlen = len;
                  longest = sndfile_bitdepth_formats_strings[n];
            }
      }

      for (n = 0; n < SNDFILE_ENDIAN_FORMATS; ++n) {
            if ((len = strlen (sndfile_endian_formats_strings[n])) > maxlen) {
                  maxlen = len;
                  longest = sndfile_endian_formats_strings[n];
            }
      }

      longest_str = longest;

      /* force ascender + descender */

      longest_str[0] = 'g';
      longest_str[1] = 'l';

      //Gtkmmext::set_usize_to_display_given_text (*header_format_combo.get_entry(), longest_str.c_str(), 5+FUDGE, 10);

      // TRANSLATORS: "slereg" is "stereo" with ascender and descender substituted
      //Gtkmmext::set_usize_to_display_given_text (*channel_count_combo.get_entry(), _("slereg"), 5+FUDGE, 5);

      header_format_combo.set_use_arrows_always (true);
      bitdepth_format_combo.set_use_arrows_always (true);
      endian_format_combo.set_use_arrows_always (true);
      channel_count_combo.set_use_arrows_always (true);
      src_quality_combo.set_use_arrows_always (true);
      dither_type_combo.set_use_arrows_always (true);
      sample_rate_combo.set_use_arrows_always (true);
      cue_file_combo.set_use_arrows_always (true);

      header_format_combo.set_value_in_list (true, false);
      bitdepth_format_combo.set_value_in_list (true, false);
      endian_format_combo.set_value_in_list (true, false);
      channel_count_combo.set_value_in_list (true, false);
      src_quality_combo.set_value_in_list (true, false);
      dither_type_combo.set_value_in_list (true, false);
      sample_rate_combo.set_value_in_list (true, false);
      cue_file_combo.set_value_in_list (true, false);

      header_format_combo.get_entry()->set_editable (false);
      bitdepth_format_combo.get_entry()->set_editable (false);
      endian_format_combo.get_entry()->set_editable (false);
      channel_count_combo.get_entry()->set_editable (false);
      src_quality_combo.get_entry()->set_editable (false);
      dither_type_combo.get_entry()->set_editable (false);
      sample_rate_combo.get_entry()->set_editable (false);
      cue_file_combo.get_entry()->set_editable (false);

      dither_type_label.set_name ("ExportFormatLabel");
      sample_rate_label.set_name ("ExportFormatLabel");
      src_quality_label.set_name ("ExportFormatLabel");
      channel_count_label.set_name ("ExportFormatLabel");
      header_format_label.set_name ("ExportFormatLabel");
      bitdepth_format_label.set_name ("ExportFormatLabel");
      endian_format_label.set_name ("ExportFormatLabel");
      cue_file_label.set_name ("ExportFormatLabel");

      header_format_combo.get_entry()->set_name ("ExportFormatDisplay");
      bitdepth_format_combo.get_entry()->set_name ("ExportFormatDisplay");
      endian_format_combo.get_entry()->set_name ("ExportFormatDisplay");
      channel_count_combo.get_entry()->set_name ("ExportFormatDisplay");
      dither_type_combo.get_entry()->set_name ("ExportFormatDisplay");
      src_quality_combo.get_entry()->set_name ("ExportFormatDisplay");
      sample_rate_combo.get_entry()->set_name ("ExportFormatDisplay");
      cue_file_combo.get_entry()->set_name ("ExportFormatDisplay");

      cuefile_only_checkbox.set_name ("ExportCheckbox");

      format_table.set_homogeneous (false);
      format_table.set_border_width (5);
      format_table.set_col_spacings (5);
      format_table.set_row_spacings (5);

      if (!audio_region) {
            format_table.attach (channel_count_label, 0, 1, 0, 1);
            format_table.attach (channel_count_combo, 1, 2, 0, 1);
      }

      format_table.attach (header_format_label, 0, 1, 1, 2);
      format_table.attach (header_format_combo, 1, 2, 1, 2);

      format_table.attach (bitdepth_format_label, 0, 1, 2, 3);
      format_table.attach (bitdepth_format_combo, 1, 2, 2, 3);

      format_table.attach (endian_format_label, 0, 1, 3, 4);
      format_table.attach (endian_format_combo, 1, 2, 3, 4);

      format_table.attach (sample_rate_label, 0, 1, 4, 5);
      format_table.attach (sample_rate_combo, 1, 2, 4, 5);

      format_table.attach (src_quality_label, 0, 1, 5, 6);
      format_table.attach (src_quality_combo, 1, 2, 5, 6);

      format_table.attach (dither_type_label, 0, 1, 6, 7);
      format_table.attach (dither_type_combo, 1, 2, 6, 7);

      format_table.attach (cue_file_label, 0, 1, 7, 8);
      format_table.attach (cue_file_combo, 1, 2, 7, 8);
      format_table.attach (cuefile_only_checkbox, 0, 2, 8, 9, 0);


      button_box.set_spacing (10);
      button_box.set_homogeneous (true);

      cancel_button.add (cancel_label);

      button_box.pack_start (ok_button, false, true);
      button_box.pack_start (cancel_button, false, true);
      
      ok_button.set_name ("EditorGTKButton");
      cancel_button.set_name ("EditorGTKButton");
      file_entry.set_name ("ExportFileDisplay");

      delete_event.connect (slot (*this, &ExportDialog::window_closed));
      ok_button.clicked.connect (slot (*this, &ExportDialog::do_export));
      cancel_button.clicked.connect (slot (*this, &ExportDialog::end_dialog));
      
      file_browse_button.set_name ("EditorGTKButton");
      file_browse_button.clicked.connect (slot (*this, &ExportDialog::initiate_browse));

      channel_count_combo.get_popwin()->unmap_event.connect (slot (*this, &ExportDialog::channels_chosen));
      bitdepth_format_combo.get_popwin()->unmap_event.connect (slot (*this, &ExportDialog::bitdepth_chosen));
      header_format_combo.get_popwin()->unmap_event.connect (slot (*this, &ExportDialog::header_chosen));
      sample_rate_combo.get_popwin()->unmap_event.connect (slot (*this, &ExportDialog::sample_rate_chosen));
      cue_file_combo.get_popwin()->unmap_event.connect (slot (*this, &ExportDialog::cue_file_type_chosen));
}

ExportDialog::~ExportDialog()
{
      if (file_selector) {
            delete file_selector;
      }
}

void
ExportDialog::connect_to_session (Session *s)
{
      session = s;
      session->going_away.connect (slot (*this, &Window::hide_all));

      switch (session->frame_rate()) {
      case 22050:
            sample_rate_combo.get_entry()->set_text (N_("22.05kHz"));
            break;
      case 44100:
            sample_rate_combo.get_entry()->set_text (N_("44.1kHz"));
            break;
      case 48000:
            sample_rate_combo.get_entry()->set_text (N_("48kHz"));
            break;
      case 88200:
            sample_rate_combo.get_entry()->set_text (N_("88.2kHz"));
            break;
      case 96000:
            sample_rate_combo.get_entry()->set_text (N_("96kHz"));
            break;
      case 192000:
            sample_rate_combo.get_entry()->set_text (N_("192kHz"));
            break;
      default:
            sample_rate_combo.get_entry()->set_text (N_("44.1kHz"));
            break;
      }

      src_quality_combo.set_sensitive (false);

      set_state();
}

void
ExportDialog::set_state()
{
      XMLNode* node = session->instant_xml(X_("ExportDialog"), session->path());
      XMLProperty* prop;

      if (node) {

            if ((prop = node->property (X_("sample_rate"))) != 0) {
                  sample_rate_combo.get_entry()->set_text(prop->value());
            }
            if ((prop = node->property (X_("src_quality"))) != 0) {
                  src_quality_combo.get_entry()->set_text(prop->value());
            }
            if ((prop = node->property (X_("dither_type"))) != 0) {
                  dither_type_combo.get_entry()->set_text(prop->value());
            }
            if ((prop = node->property (X_("channel_count"))) != 0) {
                  channel_count_combo.get_entry()->set_text(prop->value());
            }
            if ((prop = node->property (X_("header_format"))) != 0) {
                  header_format_combo.get_entry()->set_text(prop->value());
            }
            if ((prop = node->property (X_("bitdepth_format"))) != 0) {
                  bitdepth_format_combo.get_entry()->set_text(prop->value());
            }
            if ((prop = node->property (X_("endian_format"))) != 0) {
                  endian_format_combo.get_entry()->set_text(prop->value());
            }
            if ((prop = node->property (X_("filename"))) != 0) {
                  file_entry.set_text(prop->value());
            }
            if ((prop = node->property (X_("cue_file_type"))) != 0) {
                    cue_file_combo.get_entry()->set_text(prop->value());
            }
      }

      header_chosen (0);
      bitdepth_chosen(0);
      channels_chosen(0);
      sample_rate_chosen(0);

      if (session->master_out()) {
            track_scroll.hide ();
            set_default_master_selection(false);
      } else {
            master_scroll.hide ();
            track_selector_button.hide ();
      }

      if (!node) {
            return;
      }

      if (session->master_out()) {
            XMLNode* master = find_named_node(*node, (X_("Master")));

            if (master) {
                  /* XXX use XML state */
                                    
            }
      }

      XMLNode* tracks = find_named_node(*node, (X_("Tracks")));
      if (!tracks) {
            return;
      }
      
      XMLNodeList track_list = tracks->children(X_("Track"));
      CList_Helpers::RowIterator ri = track_selector.rows().begin();
      uint32_t n = 0;
      bool chan_checked = false;
      
      for (XMLNodeIterator it = track_list.begin(); it != track_list.end(); ++it, ++ri, ++n) {
            if (ri == track_selector.rows().end()) {
                  break;
            }

            XMLNode* track = *it;

            if ((prop = track->property(X_("channel1"))) != 0) {
                  if (prop->value() == X_("on")) {
                        track_selector.cell (n,1).set_pixmap (check_pixmap, check_mask);
                        chan_checked = true;
                  } else {
                        track_selector.cell (n,1).set_pixmap (empty_pixmap, empty_mask);
                  }
            }

            if ((prop = track->property(X_("channel2"))) != 0) {
                  if (prop->value() == X_("on")) {
                        track_selector.cell (n,2).set_pixmap (check_pixmap, check_mask);
                        chan_checked = true;
                  } else {
                        track_selector.cell (n,2).set_pixmap (empty_pixmap, empty_mask);
                  }
            }
      }

      if (chan_checked) {
            // show the track table if any are in use
            // and disable the master tracks
            track_scroll.show_all();
            set_default_master_selection(true);
      }
}

void
ExportDialog::save_state()
{
      if (!session) {
            return;
      }

      XMLNode* node = new XMLNode(X_("ExportDialog"));

      node->add_property(X_("sample_rate"), sample_rate_combo.get_entry()->get_text());
      node->add_property(X_("src_quality"), src_quality_combo.get_entry()->get_text());
      node->add_property(X_("dither_type"), dither_type_combo.get_entry()->get_text());
      node->add_property(X_("channel_count"), channel_count_combo.get_entry()->get_text());
      node->add_property(X_("header_format"), header_format_combo.get_entry()->get_text());
      node->add_property(X_("bitdepth_format"), bitdepth_format_combo.get_entry()->get_text());
      node->add_property(X_("endian_format"), endian_format_combo.get_entry()->get_text());
      node->add_property(X_("filename"), file_entry.get_text());
      node->add_property(X_("cue_file_type"), cue_file_combo.get_entry()->get_text());

      XMLNode* tracks = new XMLNode(X_("Tracks"));

      uint32_t n = 0;
      for (CList_Helpers::RowIterator ri = track_selector.rows().begin(); ri != track_selector.rows().end(); ++ri, ++n) {
            XMLNode* track = new XMLNode(X_("Track"));

            Gdk_Pixmap left_pixmap = track_selector.cell (n, 1).get_pixmap ();
            track->add_property(X_("channel1"), left_pixmap.gdkobj() == check_pixmap ? X_("on") : X_("off"));

            Gdk_Pixmap right_pixmap = track_selector.cell (n, 2).get_pixmap ();
            track->add_property(X_("channel2"), right_pixmap.gdkobj() == check_pixmap ? X_("on") : X_("off"));                      

            tracks->add_child_nocopy(*track);
      }
      node->add_child_nocopy(*tracks);
      
      session->add_instant_xml(*node, session->path());
}

void
ExportDialog::set_default_master_selection(bool disable)
{
      if (!session) {
            return;
      }
      
      int nchns;

      /* default is to use all */
      if (channel_count_combo.get_entry()->get_text() == _("mono")) {
            nchns = 1;
      } else {
            nchns = 2;
      }
      
      for (uint32_t r = 0; r < session->master_out()->n_outputs(); ++r) {
            if (nchns == 2) {
                  if (disable) {
                        master_selector.cell (r, 1).set_pixmap (empty_pixmap, empty_mask);
                        master_selector.cell (r, 2).set_pixmap (empty_pixmap, empty_mask);
                  }
                  else {
                        if (r % 2) {
                              master_selector.cell (r, 2).set_pixmap (check_pixmap, check_mask);
                        } else {
                              master_selector.cell (r, 1).set_pixmap (check_pixmap, check_mask);
                        }
                  }
            } else {
                  if (disable) {
                        master_selector.cell (r, 1).set_pixmap (empty_pixmap, empty_mask);
                  } else {
                        master_selector.cell (r, 1).set_pixmap (check_pixmap, check_mask);
                  }
            }
      }

}

bool
ExportDialog::has_tracks_selected()
{
      int n = 0;
      bool trackssel = false;
      
      for (CList_Helpers::RowIterator ri = track_selector.rows().begin(); ri != track_selector.rows().end(); ++ri, ++n) {
            
            Gdk_Pixmap left_pixmap = track_selector.cell (n, 1).get_pixmap ();
            
            if (left_pixmap.gdkobj() == check_pixmap) {
                  trackssel = true;
                  break;
            } 
            
            if (spec.channels == 2) {
                  
                  Gdk_Pixmap right_pixmap = track_selector.cell (n, 2).get_pixmap ();
                  
                  if (right_pixmap.gdkobj() == check_pixmap) {
                        trackssel = true;
                        break;
                  }
            }
      }

      return trackssel;
}

void
ExportDialog::set_range (jack_nframes_t start, jack_nframes_t end)
{
      spec.start_frame = start;
      spec.end_frame = end;

      if (!audio_region) {
            // XXX: this is a hack until we figure out what is really wrong
            session->request_locate (spec.start_frame, false);
      }
}

gint
ExportDialog::progress_timeout ()
{
      progress_bar.set_percentage (spec.progress);
      return TRUE;
}

void*
ExportDialog::_export_region_thread (void *arg)
{
      PBD::ThreadCreated (pthread_self(), X_("Export Region"));

      static_cast<ExportDialog*>(arg)->export_region ();
      return 0;
}

void
ExportDialog::export_region ()
{
      audio_region->exportme (*session, spec);
}

void
frames_to_cd_frames_string (char* buf, jack_nframes_t when, jack_nframes_t fr)
{

  long unsigned int remainder;
  int mins, secs, frames;

      mins = when / (60 * fr);
      remainder = when - (mins * 60 * fr);
      secs = remainder / fr;
      remainder -= secs * fr;
      frames = remainder / (fr / 75);
      sprintf (buf, " %02d:%02d:%02d", mins, secs, frames);

}

struct LocationSortByStart {
    bool operator() (Location *a, Location *b) {
          return a->start() < b->start();
    }
};

void
ExportDialog::export_toc_file (Locations::LocationList& locations, const string& path)
{
      
        string filepath = path + ".toc";
      ofstream out (filepath.c_str());
      long unsigned int last_end_time = spec.start_frame, last_start_time = spec.start_frame;
      int numtracks = 0;
      gchar buf[18];

      if (!out) {
            error << compose(_("Editor: cannot open \"%1\" as export file for CD toc file"), filepath) << endmsg;
            return;
      }
      out << "CD_DA" << endl;
      out << "CD_TEXT {" << endl << "  LANGUAGE_MAP {" << endl << "    0 : EN" << endl << "  }" << endl;
      out << "  LANGUAGE 0 {" << endl << "    TITLE \"" << session->name() << "\"" << endl << "  }" << endl << "}" << endl;

      Locations::LocationList::iterator i;
      Locations::LocationList temp;

      for (i = locations.begin(); i != locations.end(); ++i) {
        if ((*i)->start() >= spec.start_frame && (*i)->end() <= spec.end_frame && (*i)->is_cd_marker() && !(*i)->is_end()) {
          temp.push_back (*i);
          if (!(*i)->is_mark()) {
            numtracks ++;
          }
        }
      }

      if (numtracks == 0 ) {
                /* the user supplied no track markers.
                   we now treat the session as one track.*/

                out << endl << "TRACK AUDIO" << endl;
               
                out << "COPY" << endl;

                out << "NO PRE_EMPHASIS" << endl;
   
                /* XXX add session properties for catalog etc.
                   (so far only the session name is used) */
                
                out << "CD_TEXT {" << endl << "  LANGUAGE 0 {" << endl << "     TITLE \"" << session->name() << "\"" << endl;
                out << "  }" << endl << "}" << endl;

                out << "FILE \"" << path << "\" ";
                out << "00:00:00 " ;
                frames_to_cd_frames_string (buf, spec.end_frame - spec.start_frame, session->frame_rate());
                out << buf << endl;
                out << "START 00:00:00" << endl;

                last_start_time = spec.start_frame;
                last_end_time = spec.end_frame; } 

      if (temp.size()) {
            LocationSortByStart cmp;
            temp.sort (cmp);

            for (i = temp.begin(); i != temp.end(); ++i) {
      
                  if (!(*i)->is_mark()) {
                  /*this is a track */
                    out << endl << "TRACK AUDIO" << endl;

                  if ((*i)->cd_info.find("scms") != (*i)->cd_info.end())  {
                    out << "NO ";
                  }
                  out << "COPY" << endl;

                  if ((*i)->cd_info.find("preemph") != (*i)->cd_info.end())  {
                    out << "PRE_EMPHASIS" << endl;
                  } else {
                    out << "NO PRE_EMPHASIS" << endl;
                  }

                  if ((*i)->cd_info.find("isrc") != (*i)->cd_info.end())  {
                    out << "ISRC \"" << (*i)->cd_info["isrc"] << "\"" << endl;
                  }

                  out << "CD_TEXT {" << endl << "  LANGUAGE 0 {" << endl << "     TITLE \"" << (*i)->name() << "\"" << endl;
                  if ((*i)->cd_info.find("performer") != (*i)->cd_info.end()) {
                    out << "     PERFORMER \"" << (*i)->cd_info["performer"]  << "\"" << endl;
                  }
                  if ((*i)->cd_info.find("composer") != (*i)->cd_info.end()) {
                    out  << "     COMPOSER \"" << (*i)->cd_info["composer"] << "\"" << endl;
                  }

                  if ((*i)->cd_info.find("isrc") != (*i)->cd_info.end()) {                  
                    out  << "     ISRC \"";
                    out << (*i)->cd_info["isrc"].substr(0,2) << "-";
                    out << (*i)->cd_info["isrc"].substr(2,3) << "-";
                    out << (*i)->cd_info["isrc"].substr(5,2) << "-";
                    out << (*i)->cd_info["isrc"].substr(7,5) << "\"" << endl;
                  }

                  out << "  }" << endl << "}" << endl;

                  frames_to_cd_frames_string (buf, last_end_time - spec.start_frame, session->frame_rate());
                  out << "FILE \"" << path << "\" " << buf;

                  frames_to_cd_frames_string (buf, (*i)->end() - last_end_time, session->frame_rate());
                  out << buf << endl;

                  frames_to_cd_frames_string (buf, (*i)->start() - last_end_time, session->frame_rate());
                  out << "START" << buf << endl;
                  
                  last_start_time = (*i)->start();
                  last_end_time = (*i)->end();
             

                  } else  if ((*i)->start() < last_end_time) {
                  /* this is an index within a track */
                  
                  frames_to_cd_frames_string (buf, (*i)->start() - last_start_time, session->frame_rate());
                  out << "INDEX" << buf << endl;
                  }
            }
      }
      
}

void
ExportDialog::export_cue_file (Locations::LocationList& locations, const string& path)
{
        string filepath = path + ".cue";
      ofstream out (filepath.c_str());
      gchar buf[18];
      long unsigned int last_track_end = spec.start_frame;
      int numtracks = 0, tracknum = 0, indexnum = 0;

      if (!out) {
            error << compose(_("Editor: cannot open \"%1\" as export file for CD cue file"), filepath) << endmsg;
            return;
      }

      Locations::LocationList::iterator i;
      Locations::LocationList temp;

      for (i = locations.begin(); i != locations.end(); ++i) {
            if ((*i)->start() >= spec.start_frame && (*i)->end() <= spec.end_frame && (*i)->is_cd_marker() && !(*i)->is_end()) {
                  temp.push_back (*i);
                  if (!(*i)->is_mark()) {
                        numtracks++;
                  }
            }
      }
      
      out << "REM Cue file generated by Ardour" << endl;
      out << "TITLE \"" << session->name() << "\"" << endl;

      if ((header_format_combo.get_entry()->get_text() == N_("WAV"))) {
              out << "FILE " << path  << " WAVE" << endl;
      } else {
              out << "FILE " << path  << ' ' << (header_format_combo.get_entry()->get_text()) << endl;
      }

      if (numtracks == 0) {
                /* the user has supplied no track markers.
                   the entire export is treated as one track. 
                */

              numtracks++;
              tracknum++;
              indexnum = 0;
              out << endl << "TRACK " << tracknum << " AUDIO" << endl;
              out << "FLAGS " ;
              
              out << "DCP " << endl;               
              
              /* use the session name*/
              
              if (session->name() != "") {
                out << "TITLE \"" << session->name() << "\"" << endl;
              }         
              
              /* no pregap in this case */

              out << "INDEX 00 00:00:00" << endl;
              indexnum++;
              out << "INDEX 01 00:00:00" << endl;
              indexnum++;
              last_track_end = spec.end_frame;
      }

      if (temp.size()) {
            LocationSortByStart cmp;
            temp.sort (cmp);

            for ( i = temp.begin(); i != temp.end(); ++i) {

                if (!(*i)->is_mark() && ((*i)->start() >= last_track_end)) {
                  /* this is a track and it doesn't start inside another one*/
                  
                  tracknum++;
                  indexnum = 0;
                  out << endl << "TRACK " << tracknum << " AUDIO" << endl;
                  out << "FLAGS " ;
                  
                  if ((*i)->cd_info.find("scms") != (*i)->cd_info.end())  {
                  out << "SCMS ";
                  } else {
                  out << "DCP ";
                  }
                  
                  if ((*i)->cd_info.find("preemph") != (*i)->cd_info.end())  {
                  out << "PRE";
                  }
                  out << endl;
                  
                  if ((*i)->cd_info.find("isrc") != (*i)->cd_info.end())  {
                  out << "ISRC " << (*i)->cd_info["isrc"] << endl;
                  
                  }
                  if ((*i)->name() != "") {
                  out << "TITLE \"" << (*i)->name() << "\"" << endl;
                  }           
                  
                  if ((*i)->cd_info.find("performer") != (*i)->cd_info.end()) {
                  out << "PERFORMER \"" <<  (*i)->cd_info["performer"] << "\"" << endl;
                  }
                  
                  if ((*i)->cd_info.find("composer") != (*i)->cd_info.end()) {
                  out << "SONGWRITER \"" << (*i)->cd_info["composer"]  << "\"" << endl;
                  }
                  snprintf (buf, sizeof(buf), "INDEX %02d", indexnum);
                  out << buf;
                  frames_to_cd_frames_string (buf, last_track_end - spec.start_frame, session->frame_rate());
                  out << buf << endl;
                  indexnum++;
                  last_track_end = (*i)->end();
                } 
                if ((tracknum > 0) && ((*i)->start() < last_track_end)) {
                  /*this is an index and it lies within a track*/
                  snprintf (buf, sizeof(buf), "INDEX %02d", indexnum);
                  out << buf;
                  frames_to_cd_frames_string (buf,(*i)->start() - spec.start_frame, session->frame_rate());
                  out << buf << endl;
                  indexnum++;
                }
            }
      }
      
}

void
ExportDialog::do_export_cd_markers (const string& path,const string& cuefile_type)
{
      if (cuefile_type == "TOC") {
            session->locations()->apply (*this, &ExportDialog::export_toc_file, path);    
      } else {
            session->locations()->apply (*this, &ExportDialog::export_cue_file, path);
      }
}


void
ExportDialog::do_export ()
{
      using namespace CList_Helpers;

      // sanity check file name first
      string filepath = file_entry.get_text();
      struct stat statbuf;

      if (filepath.empty()) {
            // warning dialog
            string txt = _("Please enter a valid filename.");
            ArdourMessage msg (this, X_("noexportfilename"), txt);
            return;
      }
      
      // check if file exists already and warn
      if (stat (filepath.c_str(), &statbuf) == 0) {
            if (S_ISDIR (statbuf.st_mode)) {
                  string txt = _("Please specify a complete filename for the audio file.");
                  ArdourMessage msg (this, X_("exportcomplete"), txt);
                  return;
            }
            else {
                  string txt = _("File already exists, do you want to overwrite it?");
                  ArdourMessage msg (this, X_("exportoverwrite"), txt, true, true, ArdourMessage::YES_BUTTON|ArdourMessage::CANCEL_BUTTON);
                  if (msg.run_status() == ArdourMessage::CANCEL_BUTTON) {
                        return;
                  }
            }
      }
      
      // directory needs to exist and be writable
      string dirpath = PBD::dirname (filepath);
      if (::access (dirpath.c_str(), W_OK) != 0) {
            string txt = _("Cannot write file in: ") + dirpath;
            ArdourMessage msg (this, X_("cannotwrite"), txt);
            return;
      }
      
      if (cue_file_combo.get_entry()->get_text () != _("None")) {
            do_export_cd_markers (filepath, cue_file_combo.get_entry()->get_text ());
      }

      if (cuefile_only_checkbox.get_active()) {
            end_dialog ();
            return;
      }

      ok_button.set_sensitive(false);
      save_state();
            
      set_modal (true);
      
      spec.path = filepath;
      spec.progress = 0;
      spec.running = true;
      spec.stop = false;
      spec.port_map.clear();
      
      if (channel_count_combo.get_entry()->get_text() == _("mono")) {
            spec.channels = 1;
      } else {
            spec.channels = 2;
      }

      spec.format = 0;

      spec.format |= sndfile_header_format_from_string (header_format_combo.get_entry()->get_text ());
      
      if ((spec.format & SF_FORMAT_WAV) == 0) {
            /* RIFF/WAV specifies endianess */
            spec.format |= sndfile_endian_format_from_string (endian_format_combo.get_entry()->get_text ());
      }

      spec.format |= sndfile_bitdepth_format_from_string (bitdepth_format_combo.get_entry()->get_text ());

      string sr_str = sample_rate_combo.get_entry()->get_text();
      if (sr_str == N_("22.05kHz")) {
            spec.sample_rate = 22050;
      } else if (sr_str == N_("44.1kHz")) {
            spec.sample_rate = 44100;
      } else if (sr_str == N_("48kHz")) {
            spec.sample_rate = 48000;
      } else if (sr_str == N_("88.2kHz")) {
            spec.sample_rate = 88200;
      } else if (sr_str == N_("96kHz")) {
            spec.sample_rate = 96000;
      } else if (sr_str == N_("192kHz")) {
            spec.sample_rate = 192000;
      } else {
            spec.sample_rate = session->frame_rate();
      }
      
      string src_str = src_quality_combo.get_entry()->get_text();
      if (src_str == _("fastest")) {
            spec.src_quality = SRC_ZERO_ORDER_HOLD;
      } else if (src_str == _("linear")) {
            spec.src_quality = SRC_LINEAR;
      } else if (src_str == _("better")) {
            spec.src_quality = SRC_SINC_FASTEST;
      } else if (src_str == _("intermediate")) {
            spec.src_quality = SRC_SINC_MEDIUM_QUALITY;
      } else {
            spec.src_quality = SRC_SINC_BEST_QUALITY;
      }

      string dither_str = dither_type_combo.get_entry()->get_text();
      if (dither_str == _("None")) {
            spec.dither_type = GDitherNone;
      } else if (dither_str == _("Rectangular")) {
            spec.dither_type = GDitherRect;
      } else if (dither_str == _("Triangular")) {
            spec.dither_type = GDitherTri;
      } else {
            spec.dither_type = GDitherShaped;
      } 

      if (!audio_region) {

            uint32_t n = 0;
            uint32_t chan=0;
            Port *last_port = 0;
            
            for (RowIterator ri = master_selector.rows().begin(); ri != master_selector.rows().end(); ++ri, ++n) {
                  
                  Port* port = static_cast<Port*> ((*ri)->get_data ());
                  
                  if (last_port != port) {
                        chan = 0;
                  }
                  
                  Gdk_Pixmap left_pixmap = master_selector.cell (n, 1).get_pixmap ();
                  
                  if (left_pixmap.gdkobj() == check_pixmap) {
                        spec.port_map[0].push_back (std::pair<Port*,uint32_t>(port, chan));
                  } 
                  
                  if (spec.channels == 2) {
                        
                        Gdk_Pixmap right_pixmap = master_selector.cell (n, 2).get_pixmap ();
                        
                        if (right_pixmap.gdkobj() == check_pixmap) {
                              spec.port_map[1].push_back (std::pair<Port*,uint32_t>(port, chan));
                        }
                        
                  }
            }

            chan = 0;
            n = 0;

            for (RowIterator ri = track_selector.rows().begin(); ri != track_selector.rows().end(); ++ri, ++n) {
                  
                  Port* port = static_cast<Port*> ((*ri)->get_data ());
                  
                  if (last_port != port) {
                        chan = 0;
                  }
                  
                  Gdk_Pixmap left_pixmap = track_selector.cell (n, 1).get_pixmap ();
                  
                  if (left_pixmap.gdkobj() == check_pixmap) {
                        spec.port_map[0].push_back (std::pair<Port*,uint32_t>(port, chan));
                  } 
                  
                  if (spec.channels == 2) {
                        
                        Gdk_Pixmap right_pixmap = track_selector.cell (n, 2).get_pixmap ();
                        
                        if (right_pixmap.gdkobj() == check_pixmap) {
                              spec.port_map[1].push_back (std::pair<Port*,uint32_t>(port, chan));
                        }
                        
                  }
                  
                  last_port = port;
                  ++chan;
            }
      }

      progress_connection = Main::timeout.connect (slot (*this, &ExportDialog::progress_timeout), 100);
      cancel_label.set_text (_("Stop Export"));

      if (!audio_region) {
            if (session->start_audio_export (spec)) {
                  goto out;
            }
      } else {
            pthread_t thr;
            pthread_create_and_store ("region export", &thr, 0, ExportDialog::_export_region_thread, this);
      }

      gtk_main_iteration ();
      while (spec.running) {
            if (gtk_events_pending()) {
                  gtk_main_iteration ();
            } else {
                  usleep (10000);
            }
      }
      
  out:
      progress_connection.disconnect ();
      end_dialog ();
}
      

void
ExportDialog::end_dialog ()
{

      if (spec.running) {
            spec.stop = true;

            while (spec.running) {
                  if (gtk_events_pending()) {
                        gtk_main_iteration ();
                  } else {
                        usleep (10000);
                  }
            }
      }

      session->engine().freewheel (false);

      hide_all ();

      if (file_selector) {
            file_selector->hide_all ();
      }

      set_modal (false);
      ok_button.set_sensitive(true);
}

void
ExportDialog::start_export ()
{
      if (session == 0) {
            return;
      }

      /* If it the filename hasn't been set before, use the
         directory above the current session as a default
         location for the export.  
      */
      
      if (file_entry.get_text().length() == 0) {
            string dir = session->path();
            string::size_type last_slash;
            
            if ((last_slash = dir.find_last_of ('/')) != string::npos) {
                  dir = dir.substr (0, last_slash+1);
            }

            dir = dir + "export.wav";
            
            file_entry.set_text (dir);
      }
      
      progress_bar.set_percentage (0);
      cancel_label.set_text (_("Cancel"));

      show_all ();

      if (session->master_out()) {
            if (!has_tracks_selected()) {
                  track_scroll.hide ();
            }
      } else {
            master_scroll.hide ();
            track_selector_button.hide ();
      }
}

gint
ExportDialog::header_chosen (GdkEventAny* ignored)
{
      if (sndfile_header_format_from_string (header_format_combo.get_entry()->get_text ()) == SF_FORMAT_WAV) {
            endian_format_combo.set_sensitive (false);
      } else {
            endian_format_combo.set_sensitive (true);
      }
      return FALSE;
}

gint
ExportDialog::bitdepth_chosen (GdkEventAny* ignored)
{
      int format = sndfile_bitdepth_format_from_string (bitdepth_format_combo.get_entry()->get_text ());    
      switch (format) {
      case SF_FORMAT_PCM_24:
      case SF_FORMAT_PCM_32:
      case SF_FORMAT_FLOAT:
            dither_type_combo.set_sensitive (false);
            break;

      default:
            dither_type_combo.set_sensitive (true);
            break;
      }

      return FALSE;
}

gint
ExportDialog::cue_file_type_chosen (GdkEventAny* ignored)
{
      if (cue_file_combo.get_entry()->get_text () != "None") {
            cuefile_only_checkbox.set_sensitive (true);
      } else {
            cuefile_only_checkbox.set_active (false);
            cuefile_only_checkbox.set_sensitive (false);
      }
            return FALSE;
}

gint
ExportDialog::sample_rate_chosen (GdkEventAny* ignored)
{
      string sr_str = sample_rate_combo.get_entry()->get_text();
      jack_nframes_t rate;

      if (sr_str == N_("22.05kHz")) {
            rate = 22050;
      } else if (sr_str == N_("44.1kHz")) {
            rate = 44100;
      } else if (sr_str == N_("48kHz")) {
            rate = 48000;
      } else if (sr_str == N_("88.2kHz")) {
            rate = 88200;
      } else if (sr_str == N_("96kHz")) {
            rate = 96000;
      } else if (sr_str == N_("192kHz")) {
            rate = 192000;
      } else {
            rate = session->frame_rate();
      }
            
      if (rate != session->frame_rate()) {
            src_quality_combo.set_sensitive (true);
      } else {
            src_quality_combo.set_sensitive (false);
      }

      return FALSE;
}

gint
ExportDialog::channels_chosen (GdkEventAny* ignored)
{
      bool mono;

      mono = (channel_count_combo.get_entry()->get_text() == _("mono"));

      if (mono) {
            track_selector.set_column_visibility (2, false);
            track_selector.set_column_title (1, _("Export"));

            if (session->master_out()) {
                  master_selector.set_column_visibility (2, false);
                  master_selector.set_column_title (1, _("Export"));
            }

      } else {
            track_selector.set_column_visibility (2, true);
            track_selector.set_column_title (1, _("Left"));
            track_selector.set_column_title (2, _("Right"));

            if (session->master_out()) {
                  master_selector.set_column_visibility (2, true);
                  master_selector.set_column_title (1, _("Left"));
                  master_selector.set_column_title (2, _("Right"));
            }
      }

      track_selector.column_titles_show ();
      track_selector.clear ();
      master_selector.column_titles_show ();
      master_selector.clear ();
      
      Session::RouteList routes = session->get_routes ();

      for (Session::RouteList::iterator ri = routes.begin(); ri != routes.end(); ++ri) {

            Route* route = (*ri);
            
            if (route->hidden()) {
                  continue;
            }

            for (uint32_t i=0; i < route->n_outputs(); ++i) {
                  
                  list<string> stupid_list;

                  if (route->n_outputs() == 1) {
                        stupid_list.push_back (route->name());
                  } else {
                        stupid_list.push_back (compose("%1: out-%2", route->name(), i+1));
                  }

                  stupid_list.push_back ("");
                  stupid_list.push_back ("");

                  if (route == session->master_out()) {
                        master_selector.rows().push_back (stupid_list);
                        CList_Helpers::Row row = master_selector.rows().back();
                        row.set_data (route->output (i));
                        master_selector.cell (row.get_row_num(), 1).set_pixmap (empty_pixmap, empty_mask);
                        master_selector.cell (row.get_row_num(), 2).set_pixmap (empty_pixmap, empty_mask);
                  } else {
                        track_selector.rows().push_back (stupid_list);
                        CList_Helpers::Row row = track_selector.rows().back();
                        row.set_data (route->output (i));
                        track_selector.cell (row.get_row_num(), 1).set_pixmap (empty_pixmap, empty_mask);
                        track_selector.cell (row.get_row_num(), 2).set_pixmap (empty_pixmap, empty_mask);
                  }
            }
      }
      
      track_selector.select_all ();
      master_selector.select_all ();

      return FALSE;
}

gint
ExportDialog::track_selector_button_press_event (GdkEventButton* ev)
{
      gint row, col;

      if (track_selector.get_selection_info ((int)ev->x, (int)ev->y, &row, &col) == 0) {
            return FALSE;
      }

      gtk_signal_emit_stop_by_name (GTK_OBJECT(track_selector.gtkobj()), "button_press_event");
      
      Gdk_Pixmap pixmap = track_selector.cell (row,col).get_pixmap ();

      if (col != 0) {
            if (pixmap.gdkobj() == check_pixmap) {
                  track_selector.cell (row,col).set_pixmap (empty_pixmap, empty_mask);
            } else {
                  track_selector.cell (row,col).set_pixmap (check_pixmap, check_mask);
            }
      }
      
      return TRUE;
}

gint
ExportDialog::master_selector_button_press_event (GdkEventButton* ev)
{
      gint row, col;

      if (master_selector.get_selection_info ((int)ev->x, (int)ev->y, &row, &col) == 0) {
            return FALSE;
      }

      gtk_signal_emit_stop_by_name (GTK_OBJECT(master_selector.gtkobj()), "button_press_event");
      
      if (col != 0) {
            Gdk_Pixmap pixmap = master_selector.cell (row,col).get_pixmap ();
            
            if (pixmap.gdkobj() == check_pixmap) {
                  master_selector.cell (row,col).set_pixmap (empty_pixmap, empty_mask);
            } else {
                  master_selector.cell (row,col).set_pixmap (check_pixmap, check_mask);
            }
      }
      
      return TRUE;
}

gint
ExportDialog::window_closed (GdkEventAny *ignored)
{
      end_dialog ();
      return TRUE;
}
void
ExportDialog::initiate_browse ()
{
      if (file_selector == 0) {
            file_selector = new FileSelection;
            file_selector->set_modal (true);

            file_selector->get_cancel_button()->clicked.connect (bind (slot (*this, &ExportDialog::finish_browse), -1));
            file_selector->get_ok_button()->clicked.connect (bind (slot (*this, &ExportDialog::finish_browse), 1));
            file_selector->map_event.connect (bind (slot (*this, &ExportDialog::change_focus_policy), true));
            file_selector->unmap_event.connect (bind (slot (*this, &ExportDialog::change_focus_policy), false));
      }
      file_selector->set_filename (file_entry.get_text());
      file_selector->show_all ();
}

gint
ExportDialog::change_focus_policy (GdkEventAny *ev, bool yn)
{
      Keyboard::the_keyboard().allow_focus (yn);
      return FALSE;
}

void
ExportDialog::finish_browse (int status)
{
      if (file_selector) {
            if (status > 0) {
                  string result = file_selector->get_filename();
                  
                  if (result.length()) {
                        file_entry.set_text (result);
                  }
            }
            file_selector->hide_all();
      }
}

void
ExportDialog::track_selector_button_click ()
{
      if (track_scroll.is_visible ()) {
            track_scroll.hide ();
      } else {
            track_scroll.show_all ();
      }
}

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