gtk2_ardour/export_dialog.cc

   1 /*
   2     Copyright (C) 1999-2005 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18     $Id$
  19
  20 */
  21
  22 #include <unistd.h>
  23 #include <utility>
  24 #include <sys/stat.h>
  25 #include <fstream>
  26
  27 #include <samplerate.h>
  28
  29 #include <pbd/convert.h>
  30 #include <pbd/xml++.h>
  31
  32 #include <gtkmm2ext/utils.h>
  33 #include <ardour/export.h>
  34 #include <ardour/sndfile_helpers.h>
  35 #include <ardour/audio_track.h>
  36 #include <ardour/audioregion.h>
  37 #include <ardour/audioengine.h>
  38 #include <ardour/gdither.h>
  39 #include <ardour/utils.h>
  40
  41 #include "export_dialog.h"
  42 #include "ardour_ui.h"
  43 #include "public_editor.h"
  44 #include "keyboard.h"
  45
  46 #include "i18n.h"
  47
  48 #define FRAME_NAME "BaseFrame"
  49
  50 using namespace std;
  51 using namespace ARDOUR;
  52 using namespace PBD;
  53 using namespace sigc;
  54 using namespace Gtk;
  55
  56 static const gchar *sample_rates[] = {
  57         N_("22.05kHz"),
  58         N_("44.1kHz"),
  59         N_("48kHz"),
  60         N_("88.2kHz"),
  61         N_("96kHz"),
  62         N_("192kHz"),
  63         0
  64 };
  65
  66 static const gchar *src_quality[] = {
  67         N_("best"),
  68         N_("fastest"),
  69         N_("linear"),
  70         N_("better"),
  71         N_("intermediate"),
  72         0
  73 };
  74
  75 static const gchar *dither_types[] = {
  76         N_("None"),
  77         N_("Rectangular"),
  78         N_("Shaped Noise"),
  79         N_("Triangular"),
  80         0
  81 };
  82
  83 static const gchar* channel_strings[] = {
  84         N_("stereo"),
  85         N_("mono"),
  86         0
  87 };
  88
  89 static const gchar* cue_file_types[] = {
  90         N_("None"),
  91         N_("CUE"),
  92         N_("TOC"),
  93         0
  94 };
  95
  96 ExportDialog::ExportDialog(PublicEditor& e)
  97         : ArdourDialog ("export dialog"),
  98           editor (e),
  99           format_table (9, 2),
 100           format_frame (_("Format")),
 101           cue_file_label (_("CD Marker File Type"), 1.0, 0.5),
 102           channel_count_label (_("Channels"), 1.0, 0.5),
 103           header_format_label (_("File Type"), 1.0, 0.5),
 104           bitdepth_format_label (_("Sample Format"), 1.0, 0.5),
 105           endian_format_label (_("Sample Endianness"), 1.0, 0.5),
 106           sample_rate_label (_("Sample Rate"), 1.0, 0.5),
 107           src_quality_label (_("Conversion Quality"), 1.0, 0.5),
 108           dither_type_label (_("Dither Type"), 1.0, 0.5),
 109           cuefile_only_checkbox (_("Export CD Marker File Only")),
 110           file_frame (_("Export to File")),
 111           file_browse_button (_("Browse")),
 112           track_selector_button (_("Specific tracks ..."))
 113 {
 114         guint32 n;
 115         guint32 len;
 116         guint32 maxlen;
 117
 118         session = 0;
 119         track_and_master_selection_allowed = true;
 120         channel_count_selection_allowed = true;
 121         export_cd_markers_allowed = true;
 122
 123         set_title (_("ardour: export"));
 124         set_wmclass (X_("ardour_export"), "Ardour");
 125         set_name ("ExportWindow");
 126         add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
 127
 128         spec.running = false;
 129
 130         file_entry.set_name ("ExportFileNameEntry");
 131
 132         master_list = ListStore::create (exp_cols);
 133         master_selector.set_model (master_list);
 134
 135         master_selector.set_name ("ExportTrackSelector");
 136         master_selector.set_size_request (-1, 100);
 137         master_selector.append_column(_("Output"), exp_cols.output);
 138         master_selector.append_column_editable(_("Left"), exp_cols.left);
 139         master_selector.append_column_editable(_("Right"), exp_cols.right);
 140         master_selector.get_column(0)->set_min_width(100);
 141
 142         master_selector.get_column(1)->set_min_width(40);
 143         master_selector.get_column(1)->set_sizing(Gtk::TREE_VIEW_COLUMN_AUTOSIZE);
 144         master_selector.get_column(2)->set_min_width(40);
 145         master_selector.get_column(2)->set_sizing(Gtk::TREE_VIEW_COLUMN_AUTOSIZE);
 146         master_selector.get_selection()->set_mode (Gtk::SELECTION_NONE);
 147
 148         track_list = ListStore::create (exp_cols);
 149         track_selector.set_model (track_list);
 150
 151         track_selector.set_name ("ExportTrackSelector");
 152         track_selector.set_size_request (-1, 130);
 153         track_selector.append_column(_("Output"), exp_cols.output);
 154         track_selector.append_column_editable(_("Left"), exp_cols.left);
 155         track_selector.append_column_editable(_("Right"), exp_cols.right);
 156
 157         track_selector.get_column(0)->set_min_width(100);
 158         track_selector.get_column(1)->set_min_width(40);
 159         track_selector.get_column(1)->set_sizing(Gtk::TREE_VIEW_COLUMN_AUTOSIZE);
 160         track_selector.get_column(2)->set_min_width(40);
 161         track_selector.get_column(2)->set_sizing(Gtk::TREE_VIEW_COLUMN_AUTOSIZE);
 162         track_selector.get_selection()->set_mode (Gtk::SELECTION_NONE);
 163
 164         progress_bar.set_name ("ExportProgress");
 165
 166         format_frame.add (format_table);
 167         format_frame.set_name (FRAME_NAME);
 168
 169         track_scroll.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
 170         master_scroll.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
 171
 172         get_vbox()->pack_start (file_frame, false, false);
 173
 174         hpacker.set_spacing (5);
 175         hpacker.set_border_width (5);
 176         hpacker.pack_start (format_frame, false, false);
 177
 178         master_scroll.add (master_selector);
 179         track_scroll.add (track_selector);
 180
 181         master_scroll.set_size_request (220, 100);
 182         track_scroll.set_size_request (220, 100);
 183
 184         /* we may hide some of these later */
 185         track_vpacker.pack_start (master_scroll);
 186         track_vpacker.pack_start (track_scroll);
 187         track_vpacker.pack_start (track_selector_button, Gtk::PACK_EXPAND_PADDING);
 188
 189         hpacker.pack_start (track_vpacker);
 190
 191         get_vbox()->pack_start (hpacker);
 192
 193         track_selector_button.set_name ("EditorGTKButton");
 194         track_selector_button.signal_clicked().connect (mem_fun(*this, &ExportDialog::track_selector_button_click));
 195
 196         get_vbox()->pack_start (progress_bar, false, false);
 197
 198         Gtkmm2ext::set_size_request_to_display_given_text (file_entry, X_("Kg/quite/a/reasonable/size/for/files/i/think"), 5, 8);
 199
 200         file_hbox.set_spacing (5);
 201         file_hbox.set_border_width (5);
 202         file_hbox.pack_start (file_entry, true, true);
 203         file_hbox.pack_start (file_browse_button, false, false);
 204
 205         file_frame.add (file_hbox);
 206         file_frame.set_border_width (5);
 207         file_frame.set_name (FRAME_NAME);
 208
 209         /* pop_strings needs to be created on the stack because set_popdown_strings()
 210            takes a reference.
 211         */
 212
 213         vector<string> pop_strings = I18N (sample_rates);
 214         Gtkmm2ext::set_popdown_strings (sample_rate_combo, pop_strings);
 215         sample_rate_combo.set_active_text (pop_strings.front());
 216         pop_strings = I18N (src_quality);
 217         Gtkmm2ext::set_popdown_strings (src_quality_combo, pop_strings);
 218         src_quality_combo.set_active_text (pop_strings.front());
 219         pop_strings = I18N (dither_types);
 220         Gtkmm2ext::set_popdown_strings (dither_type_combo, pop_strings);
 221         dither_type_combo.set_active_text (pop_strings.front());
 222         pop_strings = I18N (channel_strings);
 223         Gtkmm2ext::set_popdown_strings (channel_count_combo, pop_strings);
 224         channel_count_combo.set_active_text (pop_strings.front());
 225         pop_strings = I18N ((const char **) sndfile_header_formats_strings);
 226         Gtkmm2ext::set_popdown_strings (header_format_combo, pop_strings);
 227         header_format_combo.set_active_text (pop_strings.front());
 228         pop_strings = I18N ((const char **) sndfile_bitdepth_formats_strings);
 229         Gtkmm2ext::set_popdown_strings (bitdepth_format_combo, pop_strings);
 230         bitdepth_format_combo.set_active_text (pop_strings.front());
 231         pop_strings = I18N ((const char **) sndfile_endian_formats_strings);
 232         Gtkmm2ext::set_popdown_strings (endian_format_combo, pop_strings);
 233         endian_format_combo.set_active_text (pop_strings.front());
 234         pop_strings = I18N (cue_file_types);
 235         Gtkmm2ext::set_popdown_strings (cue_file_combo, pop_strings);
 236         cue_file_combo.set_active_text (pop_strings.front());
 237
 238         /* this will re-sensitized as soon as a non RIFF/WAV
 239            header format is chosen.
 240         */
 241
 242         endian_format_combo.set_sensitive (false);
 243
 244         /* determine longest strings at runtime */
 245
 246         maxlen = 0;
 247         const char *longest = X_("gl"); /* translators: one ascender, one descender */
 248         string longest_str;
 249
 250         for (n = 0; n < SNDFILE_HEADER_FORMATS; ++n) {
 251                 if ((len = strlen (sndfile_header_formats_strings[n])) > maxlen) {
 252                         maxlen = len;
 253                         longest = sndfile_header_formats_strings[n];
 254                 }
 255         }
 256
 257         for (n = 0; n < SNDFILE_BITDEPTH_FORMATS; ++n) {
 258                 if ((len = strlen (sndfile_bitdepth_formats_strings[n])) > maxlen) {
 259                         maxlen = len;
 260                         longest = sndfile_bitdepth_formats_strings[n];
 261                 }
 262         }
 263
 264         for (n = 0; n < SNDFILE_ENDIAN_FORMATS; ++n) {
 265                 if ((len = strlen (sndfile_endian_formats_strings[n])) > maxlen) {
 266                         maxlen = len;
 267                         longest = sndfile_endian_formats_strings[n];
 268                 }
 269         }
 270
 271         longest_str = longest;
 272
 273         /* force ascender + descender */
 274
 275         longest_str[0] = 'g';
 276         longest_str[1] = 'l';
 277
 278         //Gtkmm2ext::set_size_request_to_display_given_text (header_format_combo, longest_str.c_str(), 5+FUDGE, 5);
 279
 280         // TRANSLATORS: "slereg" is "stereo" with ascender and descender substituted
 281         //Gtkmm2ext::set_size_request_to_display_given_text (channel_count_combo, _("slereg"), 5+FUDGE, 5);
 282
 283 /*      header_format_combo.set_focus_on_click (true);
 284         bitdepth_format_combo.set_focus_on_click (true);
 285         endian_format_combo.set_focus_on_click (true);
 286         channel_count_combo.set_focus_on_click (true);
 287         src_quality_combo.set_focus_on_click (true);
 288         dither_type_combo.set_focus_on_click (true);
 289         sample_rate_combo.set_focus_on_click (true);
 290         cue_file_combo.set_focus_on_click (true);
 291 */
 292         dither_type_label.set_name ("ExportFormatLabel");
 293         sample_rate_label.set_name ("ExportFormatLabel");
 294         src_quality_label.set_name ("ExportFormatLabel");
 295         channel_count_label.set_name ("ExportFormatLabel");
 296         header_format_label.set_name ("ExportFormatLabel");
 297         bitdepth_format_label.set_name ("ExportFormatLabel");
 298         endian_format_label.set_name ("ExportFormatLabel");
 299         cue_file_label.set_name ("ExportFormatLabel");
 300
 301         header_format_combo.set_name ("ExportFormatDisplay");
 302         bitdepth_format_combo.set_name ("ExportFormatDisplay");
 303         endian_format_combo.set_name ("ExportFormatDisplay");
 304         channel_count_combo.set_name ("ExportFormatDisplay");
 305         dither_type_combo.set_name ("ExportFormatDisplay");
 306         src_quality_combo.set_name ("ExportFormatDisplay");
 307         sample_rate_combo.set_name ("ExportFormatDisplay");
 308         cue_file_combo.set_name ("ExportFormatDisplay");
 309
 310         cuefile_only_checkbox.set_name ("ExportCheckbox");
 311
 312         format_table.set_homogeneous (false);
 313         format_table.set_border_width (5);
 314         format_table.set_col_spacings (5);
 315         format_table.set_row_spacings (5);
 316
 317         format_table.attach (channel_count_label, 0, 1, 0, 1);
 318         format_table.attach (channel_count_combo, 1, 2, 0, 1);
 319
 320         format_table.attach (header_format_label, 0, 1, 1, 2);
 321         format_table.attach (header_format_combo, 1, 2, 1, 2);
 322
 323         format_table.attach (bitdepth_format_label, 0, 1, 2, 3);
 324         format_table.attach (bitdepth_format_combo, 1, 2, 2, 3);
 325
 326         format_table.attach (endian_format_label, 0, 1, 3, 4);
 327         format_table.attach (endian_format_combo, 1, 2, 3, 4);
 328
 329         format_table.attach (sample_rate_label, 0, 1, 4, 5);
 330         format_table.attach (sample_rate_combo, 1, 2, 4, 5);
 331
 332         format_table.attach (src_quality_label, 0, 1, 5, 6);
 333         format_table.attach (src_quality_combo, 1, 2, 5, 6);
 334
 335         format_table.attach (dither_type_label, 0, 1, 6, 7);
 336         format_table.attach (dither_type_combo, 1, 2, 6, 7);
 337
 338         format_table.attach (cue_file_label, 0, 1, 7, 8);
 339         format_table.attach (cue_file_combo, 1, 2, 7, 8);
 340         format_table.attach (cuefile_only_checkbox, 0, 2, 8, 9);
 341
 342         file_entry.set_name ("ExportFileDisplay");
 343
 344         signal_delete_event().connect (mem_fun(*this, &ExportDialog::window_closed));
 345
 346         cancel_button = add_button (Stock::CANCEL, RESPONSE_CANCEL);
 347         cancel_button->signal_clicked().connect (mem_fun(*this, &ExportDialog::end_dialog));
 348         ok_button = add_button (_("Export"), RESPONSE_ACCEPT);
 349         ok_button->signal_clicked().connect (mem_fun(*this, &ExportDialog::do_export));
 350
 351         file_browse_button.set_name ("EditorGTKButton");
 352         file_browse_button.signal_clicked().connect (mem_fun(*this, &ExportDialog::browse));
 353
 354         channel_count_combo.signal_changed().connect (mem_fun(*this, &ExportDialog::channels_chosen));
 355         bitdepth_format_combo.signal_changed().connect (mem_fun(*this, &ExportDialog::bitdepth_chosen));
 356         header_format_combo.signal_changed().connect (mem_fun(*this, &ExportDialog::header_chosen));
 357         sample_rate_combo.signal_changed().connect (mem_fun(*this, &ExportDialog::sample_rate_chosen));
 358         cue_file_combo.signal_changed().connect (mem_fun(*this, &ExportDialog::cue_file_type_chosen));
 359 }
 360
 361 ExportDialog::~ExportDialog()
 362 {
 363 }
 364
 365 void
 366 ExportDialog::do_not_allow_track_and_master_selection()
 367 {
 368         track_and_master_selection_allowed = false;
 369         track_vpacker.set_no_show_all();
 370 }
 371
 372 void
 373 ExportDialog::do_not_allow_channel_count_selection()
 374 {
 375         channel_count_selection_allowed = false;
 376         channel_count_combo.set_no_show_all();
 377         channel_count_label.set_no_show_all();
 378 }
 379
 380 void
 381 ExportDialog::do_not_allow_export_cd_markers()
 382 {
 383         export_cd_markers_allowed = false;
 384         cue_file_label.set_no_show_all();
 385         cue_file_combo.set_no_show_all();
 386         cuefile_only_checkbox.set_no_show_all();
 387 }
 388
 389 void
 390 ExportDialog::connect_to_session (Session *s)
 391 {
 392         session = s;
 393         session->GoingAway.connect (mem_fun(*this, &Window::hide_all));
 394
 395         switch (session->frame_rate()) {
 396         case 22050:
 397                 sample_rate_combo.set_active_text (N_("22.05kHz"));
 398                 break;
 399         case 44100:
 400                 sample_rate_combo.set_active_text (N_("44.1kHz"));
 401                 break;
 402         case 48000:
 403                 sample_rate_combo.set_active_text (N_("48kHz"));
 404                 break;
 405         case 88200:
 406                 sample_rate_combo.set_active_text (N_("88.2kHz"));
 407                 break;
 408         case 96000:
 409                 sample_rate_combo.set_active_text (N_("96kHz"));
 410                 break;
 411         case 192000:
 412                 sample_rate_combo.set_active_text (N_("192kHz"));
 413                 break;
 414         default:
 415                 sample_rate_combo.set_active_text (N_("44.1kHz"));
 416                 break;
 417         }
 418
 419         src_quality_combo.set_sensitive (false);
 420
 421         set_state();
 422 }
 423
 424 void
 425 ExportDialog::set_state()
 426 {
 427         XMLNode* node = session->instant_xml(X_("ExportDialog"), session->path());
 428         XMLProperty* prop;
 429
 430         if (node) {
 431
 432                 if ((prop = node->property (X_("sample_rate"))) != 0) {
 433                         sample_rate_combo.set_active_text(prop->value());
 434                 }
 435                 if ((prop = node->property (X_("src_quality"))) != 0) {
 436                         src_quality_combo.set_active_text(prop->value());
 437                 }
 438                 if ((prop = node->property (X_("dither_type"))) != 0) {
 439                         dither_type_combo.set_active_text(prop->value());
 440                 }
 441                 if ((prop = node->property (X_("channel_count"))) != 0) {
 442                         channel_count_combo.set_active_text(prop->value());
 443                 }
 444                 if ((prop = node->property (X_("header_format"))) != 0) {
 445                         header_format_combo.set_active_text(prop->value());
 446                 }
 447                 if ((prop = node->property (X_("bitdepth_format"))) != 0) {
 448                         bitdepth_format_combo.set_active_text(prop->value());
 449                 }
 450                 if ((prop = node->property (X_("endian_format"))) != 0) {
 451                         endian_format_combo.set_active_text(prop->value());
 452                 }
 453                 if ((prop = node->property (X_("filename"))) != 0) {
 454                         file_entry.set_text(prop->value());
 455                 }
 456                 if ((prop = node->property (X_("cue_file_type"))) != 0) {
 457                         cue_file_combo.set_active_text(prop->value());
 458                 }
 459         }
 460
 461         header_chosen ();
 462         bitdepth_chosen();
 463         channels_chosen();
 464         sample_rate_chosen();
 465
 466         if (session->master_out()) {
 467                 track_scroll.hide ();
 468         } else {
 469                 master_scroll.hide ();
 470                 track_selector_button.hide ();
 471         }
 472
 473         if (!node) {
 474                 return;
 475         }
 476
 477         if (session->master_out()) {
 478                 XMLNode* master = find_named_node(*node, (X_("Master")));
 479                 int nchns;
 480
 481                 if (!master) {
 482
 483                         /* default is to use all */
 484                         if (channel_count_combo.get_active_text() == _("mono")) {
 485                                 nchns = 1;
 486                         } else {
 487                                 nchns = 2;
 488                         }
 489
 490                         TreeModel::Children rows = master_selector.get_model()->children();
 491                         for (uint32_t r = 0; r < session->master_out()->n_outputs(); ++r) {
 492                                 if (nchns == 2) {
 493                                         if (r % 2) {
 494                                                 rows[r][exp_cols.right] = true;
 495                                         } else {
 496                                                 rows[r][exp_cols.left] = true;
 497                                         }
 498                                 } else {
 499                                         rows[r][exp_cols.left] = true;
 500                                 }
 501                         }
 502
 503                 } else {
 504                         /* XXX use XML state */
 505                 }
 506         }
 507
 508         XMLNode* tracks = find_named_node(*node, (X_("Tracks")));
 509         if (!tracks) {
 510                 return;
 511         }
 512
 513         XMLNodeList track_list = tracks->children(X_("Track"));
 514         TreeModel::Children rows = track_selector.get_model()->children();
 515         TreeModel::Children::iterator ri = rows.begin();
 516         TreeModel::Row row;
 517
 518         for (XMLNodeIterator it = track_list.begin(); it != track_list.end(); ++it, ++ri) {
 519                 if (ri == rows.end()){
 520                         break;
 521                 }
 522
 523                 XMLNode* track = *it;
 524                 row = *ri;
 525
 526                 if ((prop = track->property(X_("channel1"))) != 0) {
 527                         if (prop->value() == X_("on")) {
 528                                 row[exp_cols.left] = true;
 529                         } else {
 530                                 row[exp_cols.left] = false;
 531                         }
 532                 }
 533
 534                 if ((prop = track->property(X_("channel2"))) != 0) {
 535                         if (prop->value() == X_("on")) {
 536                                 row[exp_cols.right] = true;
 537                         } else {
 538                                 row[exp_cols.right] = false;
 539                         }
 540                 }
 541         }
 542 }
 543
 544 void
 545 ExportDialog::save_state()
 546 {
 547         if (!session) {
 548                 return;
 549         }
 550
 551         XMLNode* node = new XMLNode(X_("ExportDialog"));
 552
 553         node->add_property(X_("sample_rate"), sample_rate_combo.get_active_text());
 554         node->add_property(X_("src_quality"), src_quality_combo.get_active_text());
 555         node->add_property(X_("dither_type"), dither_type_combo.get_active_text());
 556         node->add_property(X_("channel_count"), channel_count_combo.get_active_text());
 557         node->add_property(X_("header_format"), header_format_combo.get_active_text());
 558         node->add_property(X_("bitdepth_format"), bitdepth_format_combo.get_active_text());
 559         node->add_property(X_("endian_format"), endian_format_combo.get_active_text());
 560         node->add_property(X_("filename"), file_entry.get_text());
 561         node->add_property(X_("cue_file_type"), cue_file_combo.get_active_text());
 562
 563         XMLNode* tracks = new XMLNode(X_("Tracks"));
 564
 565         TreeModel::Children rows = track_selector.get_model()->children();
 566         TreeModel::Row row;
 567         for (TreeModel::Children::iterator ri = rows.begin(); ri != rows.end(); ++ri) {
 568                 XMLNode* track = new XMLNode(X_("Track"));
 569
 570                 row = *ri;
 571                 track->add_property(X_("channel1"), row[exp_cols.left] ? X_("on") : X_("off"));
 572                 track->add_property(X_("channel2"), row[exp_cols.right] ? X_("on") : X_("off"));
 573
 574                 tracks->add_child_nocopy(*track);
 575         }
 576         node->add_child_nocopy(*tracks);
 577
 578         session->add_instant_xml(*node, session->path());
 579 }
 580
 581 void
 582 ExportDialog::set_range (nframes_t start, nframes_t end)
 583 {
 584         spec.start_frame = start;
 585         spec.end_frame = end;
 586 }
 587
 588 gint
 589 ExportDialog::progress_timeout ()
 590 {
 591         progress_bar.set_fraction (spec.progress);
 592         return TRUE;
 593 }
 594
 595 void
 596 frames_to_cd_frames_string (char* buf, nframes_t when, nframes_t fr)
 597 {
 598
 599   long unsigned int remainder;
 600   int mins, secs, frames;
 601
 602         mins = when / (60 * fr);
 603         remainder = when - (mins * 60 * fr);
 604         secs = remainder / fr;
 605         remainder -= secs * fr;
 606         frames = remainder / (fr / 75);
 607         sprintf (buf, " %02d:%02d:%02d", mins, secs, frames);
 608
 609 }
 610
 611 struct LocationSortByStart {
 612     bool operator() (Location *a, Location *b) {
 613             return a->start() < b->start();
 614     }
 615 };
 616
 617 void
 618 ExportDialog::export_toc_file (Locations::LocationList& locations, const string& path)
 619 {
 620         if(!export_cd_markers_allowed){
 621                 return;
 622         }
 623
 624     string filepath = path + ".toc";
 625         ofstream out (filepath.c_str());
 626         long unsigned int last_end_time = spec.start_frame, last_start_time = spec.start_frame;
 627         int numtracks = 0;
 628         gchar buf[18];
 629
 630         if (!out) {
 631                 error << string_compose(_("Editor: cannot open \"%1\" as export file for CD toc file"), filepath) << endmsg;
 632                 return;
 633         }
 634         out << "CD_DA" << endl;
 635         out << "CD_TEXT {" << endl << "  LANGUAGE_MAP {" << endl << "    0 : EN" << endl << "  }" << endl;
 636         out << "  LANGUAGE 0 {" << endl << "    TITLE \"" << session->name() << "\"" << endl << "  }" << endl << "}" << endl;
 637
 638         Locations::LocationList::iterator i;
 639         Locations::LocationList temp;
 640
 641         for (i = locations.begin(); i != locations.end(); ++i) {
 642           if ((*i)->start() >= spec.start_frame && (*i)->end() <= spec.end_frame && (*i)->is_cd_marker() && !(*i)->is_end()) {
 643             temp.push_back (*i);
 644             if (!(*i)->is_mark()) {
 645               numtracks ++;
 646             }
 647           }
 648         }
 649
 650         if (numtracks == 0 ) {
 651                     /* the user supplied no track markers.
 652                        we now treat the session as one track.*/
 653
 654                     out << endl << "TRACK AUDIO" << endl;
 655
 656                     out << "COPY" << endl;
 657
 658                     out << "NO PRE_EMPHASIS" << endl;
 659
 660                     /* XXX add session properties for catalog etc.
 661                        (so far only the session name is used) */
 662
 663                     out << "CD_TEXT {" << endl << "  LANGUAGE 0 {" << endl << "     TITLE \"" << session->name() << "\"" << endl;
 664                     out << "  }" << endl << "}" << endl;
 665
 666                     out << "FILE \"" << path << "\" ";
 667                     out << "00:00:00 " ;
 668                     frames_to_cd_frames_string (buf, spec.end_frame - spec.start_frame, session->frame_rate());
 669                     out << buf << endl;
 670                     out << "START 00:00:00" << endl;
 671
 672                     last_start_time = spec.start_frame;
 673                     last_end_time = spec.end_frame;
 674         }
 675
 676         if (temp.size()) {
 677                 LocationSortByStart cmp;
 678                 temp.sort (cmp);
 679
 680                 for (i = temp.begin(); i != temp.end(); ++i) {
 681
 682                       if (!(*i)->is_mark()) {
 683                         /*this is a track */
 684                         out << endl << "TRACK AUDIO" << endl;
 685
 686                         if ((*i)->cd_info.find("scms") != (*i)->cd_info.end())  {
 687                           out << "NO ";
 688                         }
 689                         out << "COPY" << endl;
 690
 691                         if ((*i)->cd_info.find("preemph") != (*i)->cd_info.end())  {
 692                           out << "PRE_EMPHASIS" << endl;
 693                         } else {
 694                           out << "NO PRE_EMPHASIS" << endl;
 695                         }
 696
 697                         if ((*i)->cd_info.find("isrc") != (*i)->cd_info.end())  {
 698                           out << "ISRC \"" << (*i)->cd_info["isrc"] << "\"" << endl;
 699                         }
 700
 701                         out << "CD_TEXT {" << endl << "  LANGUAGE 0 {" << endl << "     TITLE \"" << (*i)->name() << "\"" << endl;
 702                         if ((*i)->cd_info.find("performer") != (*i)->cd_info.end()) {
 703                           out << "     PERFORMER \"" << (*i)->cd_info["performer"]  << "\"" << endl;
 704                         }
 705                         if ((*i)->cd_info.find("string_composer") != (*i)->cd_info.end()) {
 706                           out  << "     COMPOSER \"" << (*i)->cd_info["string_composer"] << "\"" << endl;
 707                         }
 708
 709                         if ((*i)->cd_info.find("isrc") != (*i)->cd_info.end()) {
 710                           out  << "     ISRC \"";
 711                           out << (*i)->cd_info["isrc"].substr(0,2) << "-";
 712                           out << (*i)->cd_info["isrc"].substr(2,3) << "-";
 713                           out << (*i)->cd_info["isrc"].substr(5,2) << "-";
 714                           out << (*i)->cd_info["isrc"].substr(7,5) << "\"" << endl;
 715                         }
 716
 717                         out << "  }" << endl << "}" << endl;
 718
 719                         frames_to_cd_frames_string (buf, last_end_time - spec.start_frame, session->frame_rate());
 720                         out << "FILE \"" << path << "\" " << buf;
 721
 722                         frames_to_cd_frames_string (buf, (*i)->end() - last_end_time, session->frame_rate());
 723                         out << buf << endl;
 724
 725                         frames_to_cd_frames_string (buf, (*i)->start() - last_end_time, session->frame_rate());
 726                         out << "START" << buf << endl;
 727
 728                         last_start_time = (*i)->start();
 729                         last_end_time = (*i)->end();
 730
 731
 732                       } else  if ((*i)->start() < last_end_time) {
 733                         /* this is an index within a track */
 734
 735                         frames_to_cd_frames_string (buf, (*i)->start() - last_start_time, session->frame_rate());
 736                         out << "INDEX" << buf << endl;
 737                       }
 738                 }
 739         }
 740
 741 }
 742
 743 void
 744 ExportDialog::export_cue_file (Locations::LocationList& locations, const string& path)
 745 {
 746         if(!export_cd_markers_allowed){
 747                 return;
 748         }
 749
 750     string filepath = path + ".cue";
 751         ofstream out (filepath.c_str());
 752         gchar buf[18];
 753         long unsigned int last_track_end = spec.start_frame;
 754         int numtracks = 0, tracknum = 0, indexnum = 0;
 755
 756         if (!out) {
 757                 error << string_compose(_("Editor: cannot open \"%1\" as export file for CD cue file"), filepath) << endmsg;
 758                 return;
 759         }
 760
 761         Locations::LocationList::iterator i;
 762         Locations::LocationList temp;
 763
 764         for (i = locations.begin(); i != locations.end(); ++i) {
 765                 if ((*i)->start() >= spec.start_frame && (*i)->end() <= spec.end_frame && (*i)->is_cd_marker() && !(*i)->is_end()) {
 766                         temp.push_back (*i);
 767                         if (!(*i)->is_mark()) {
 768                                 numtracks++;
 769                         }
 770                 }
 771         }
 772
 773         out << "REM Cue file generated by Ardour" << endl;
 774         out << "TITLE \"" << session->name() << "\"" << endl;
 775
 776         if ((header_format_combo.get_active_text() == N_("WAV"))) {
 777                   out << "FILE " << path  << " WAVE" << endl;
 778         } else {
 779                   out << "FILE " << path  << ' ' << (header_format_combo.get_active_text()) << endl;
 780         }
 781
 782         if (numtracks == 0) {
 783                     /* the user has supplied no track markers.
 784                        the entire export is treated as one track.
 785                     */
 786
 787                   numtracks++;
 788                   tracknum++;
 789                   indexnum = 0;
 790                   out << endl << "TRACK " << tracknum << " AUDIO" << endl;
 791                   out << "FLAGS " ;
 792
 793                   out << "DCP " << endl;
 794
 795                   /* use the session name*/
 796
 797                   if (session->name() != "") {
 798                     out << "TITLE \"" << session->name() << "\"" << endl;
 799                   }
 800
 801                   /* no pregap in this case */
 802
 803                   out << "INDEX 00 00:00:00" << endl;
 804                   indexnum++;
 805                   out << "INDEX 01 00:00:00" << endl;
 806                   indexnum++;
 807                   last_track_end = spec.end_frame;
 808         }
 809
 810         if (temp.size()) {
 811                 LocationSortByStart cmp;
 812                 temp.sort (cmp);
 813
 814                 for ( i = temp.begin(); i != temp.end(); ++i) {
 815
 816                     if (!(*i)->is_mark() && ((*i)->start() >= last_track_end)) {
 817                       /* this is a track and it doesn't start inside another one*/
 818
 819                       tracknum++;
 820                       indexnum = 0;
 821                       out << endl << "TRACK " << tracknum << " AUDIO" << endl;
 822                       out << "FLAGS " ;
 823
 824                       if ((*i)->cd_info.find("scms") != (*i)->cd_info.end())  {
 825                         out << "SCMS ";
 826                       } else {
 827                         out << "DCP ";
 828                       }
 829
 830                       if ((*i)->cd_info.find("preemph") != (*i)->cd_info.end())  {
 831                         out << "PRE";
 832                       }
 833                       out << endl;
 834
 835                       if ((*i)->cd_info.find("isrc") != (*i)->cd_info.end())  {
 836                         out << "ISRC " << (*i)->cd_info["isrc"] << endl;
 837
 838                       }
 839                       if ((*i)->name() != "") {
 840                         out << "TITLE \"" << (*i)->name() << "\"" << endl;
 841                       }
 842
 843                       if ((*i)->cd_info.find("performer") != (*i)->cd_info.end()) {
 844                         out << "PERFORMER \"" <<  (*i)->cd_info["performer"] << "\"" << endl;
 845                       }
 846
 847                       if ((*i)->cd_info.find("string_composer") != (*i)->cd_info.end()) {
 848                         out << "SONGWRITER \"" << (*i)->cd_info["string_composer"]  << "\"" << endl;
 849                       }
 850                         snprintf (buf, sizeof(buf), "INDEX %02d", indexnum);
 851                         out << buf;
 852                         frames_to_cd_frames_string (buf, last_track_end - spec.start_frame, session->frame_rate());
 853                         out << buf << endl;
 854                         indexnum++;
 855                         last_track_end = (*i)->end();
 856                     }
 857                     if ((tracknum > 0) && ((*i)->start() < last_track_end)) {
 858                       /*this is an index and it lies within a track*/
 859                       snprintf (buf, sizeof(buf), "INDEX %02d", indexnum);
 860                       out << buf;
 861                       frames_to_cd_frames_string (buf,(*i)->start() - spec.start_frame, session->frame_rate());
 862                       out << buf << endl;
 863                       indexnum++;
 864                     }
 865                 }
 866         }
 867
 868 }
 869
 870 void
 871 ExportDialog::do_export_cd_markers (const string& path,const string& cuefile_type)
 872 {
 873         if (cuefile_type == "TOC") {
 874                 session->locations()->apply (*this, &ExportDialog::export_toc_file, path);
 875         } else {
 876                 session->locations()->apply (*this, &ExportDialog::export_cue_file, path);
 877         }
 878 }
 879
 880
 881 void
 882 ExportDialog::do_export ()
 883 {
 884         string filepath = file_entry.get_text();
 885
 886         if(!is_filepath_valid(filepath)){
 887                 return;
 888         }
 889
 890         if (export_cd_markers_allowed) {
 891                 if (cue_file_combo.get_active_text () != _("None")) {
 892                         do_export_cd_markers (file_entry.get_text(), cue_file_combo.get_active_text ());
 893                 }
 894
 895                 if (cuefile_only_checkbox.get_active()) {
 896                         end_dialog ();
 897                         return;
 898                 }
 899         }
 900
 901         ok_button->set_sensitive(false);
 902         save_state();
 903
 904         set_modal (true);
 905
 906         // read user input into spec
 907         initSpec(filepath);
 908
 909         progress_connection = Glib::signal_timeout().connect (mem_fun(*this, &ExportDialog::progress_timeout), 100);
 910         cancel_label.set_text (_("Stop Export"));
 911
 912         export_audio_data();
 913
 914         progress_connection.disconnect ();
 915         end_dialog ();
 916 }
 917
 918 void
 919 ExportDialog::end_dialog ()
 920 {
 921
 922         if (spec.running) {
 923                 spec.stop = true;
 924
 925                 while (spec.running) {
 926                         if (gtk_events_pending()) {
 927                                 gtk_main_iteration ();
 928                         } else {
 929                                 usleep (10000);
 930                         }
 931                 }
 932         }
 933
 934         session->engine().freewheel (false);
 935
 936         hide_all ();
 937
 938         set_modal (false);
 939         ok_button->set_sensitive(true);
 940 }
 941
 942 void
 943 ExportDialog::start_export ()
 944 {
 945         if (session == 0) {
 946                 return;
 947         }
 948
 949         /* If the filename hasn't been set before, use the
 950            current session's export directory as a default
 951            location for the export.
 952         */
 953
 954         if (file_entry.get_text().length() == 0) {
 955                 string dir = session->export_dir();
 956                 string::size_type last_slash;
 957
 958                 if ((last_slash = dir.find_last_of ('/')) != string::npos && last_slash != 0) {
 959                         dir = dir.substr (0, last_slash+1);
 960                 }
 961
 962                 if (!wants_dir()) {
 963                         dir = dir + "export.wav";
 964                 }
 965
 966                 file_entry.set_text (dir);
 967         }
 968
 969         progress_bar.set_fraction (0);
 970         cancel_label.set_text (_("Cancel"));
 971
 972         show_all ();
 973
 974         if (session->master_out()) {
 975                 track_scroll.hide ();
 976         } else {
 977                 master_scroll.hide ();
 978                 track_selector_button.hide ();
 979         }
 980 }
 981
 982 void
 983 ExportDialog::header_chosen ()
 984 {
 985         if (sndfile_header_format_from_string (header_format_combo.get_active_text ()) == SF_FORMAT_WAV) {
 986                 endian_format_combo.set_sensitive (false);
 987         } else {
 988                 endian_format_combo.set_sensitive (true);
 989         }
 990 }
 991
 992 void
 993 ExportDialog::bitdepth_chosen ()
 994 {
 995         int format = sndfile_bitdepth_format_from_string (bitdepth_format_combo.get_active_text ());
 996         switch (format) {
 997         case SF_FORMAT_PCM_24:
 998         case SF_FORMAT_PCM_32:
 999         case SF_FORMAT_FLOAT:
1000                 dither_type_combo.set_sensitive (false);
1001                 break;
1002
1003         default:
1004                 dither_type_combo.set_sensitive (true);
1005                 break;
1006         }
1007 }
1008
1009 void
1010 ExportDialog::cue_file_type_chosen ()
1011 {
1012         if (cue_file_combo.get_active_text () != "None") {
1013                 cuefile_only_checkbox.set_sensitive (true);
1014         } else {
1015                 cuefile_only_checkbox.set_active (false);
1016                 cuefile_only_checkbox.set_sensitive (false);
1017         }
1018 }
1019
1020 void
1021 ExportDialog::sample_rate_chosen ()
1022 {
1023         string sr_str = sample_rate_combo.get_active_text();
1024         nframes_t rate;
1025
1026         if (sr_str == N_("22.05kHz")) {
1027                 rate = 22050;
1028         } else if (sr_str == N_("44.1kHz")) {
1029                 rate = 44100;
1030         } else if (sr_str == N_("48kHz")) {
1031                 rate = 48000;
1032         } else if (sr_str == N_("88.2kHz")) {
1033                 rate = 88200;
1034         } else if (sr_str == N_("96kHz")) {
1035                 rate = 96000;
1036         } else if (sr_str == N_("192kHz")) {
1037                 rate = 192000;
1038         } else {
1039                 rate = session->frame_rate();
1040         }
1041
1042         if (rate != session->frame_rate()) {
1043                 src_quality_combo.set_sensitive (true);
1044         } else {
1045                 src_quality_combo.set_sensitive (false);
1046         }
1047 }
1048
1049 void
1050 ExportDialog::channels_chosen ()
1051 {
1052         bool mono;
1053
1054         mono = (channel_count_combo.get_active_text() == _("mono"));
1055
1056         if (mono) {
1057                 track_selector.get_column(2)->set_visible(false);
1058                 track_selector.get_column(1)->set_title(_("Export"));
1059
1060                 if (session->master_out()) {
1061                         master_selector.get_column(2)->set_visible(false);
1062                         master_selector.get_column(1)->set_title(_("Export"));
1063                 }
1064
1065         } else {
1066                 track_selector.get_column(2)->set_visible(true);
1067                 track_selector.get_column(1)->set_title(_("Left"));
1068
1069                 if (session->master_out()) {
1070                         master_selector.get_column(2)->set_visible(true);
1071                         master_selector.get_column(1)->set_title(_("Left"));
1072                 }
1073         }
1074
1075         fill_lists();
1076 }
1077
1078 void
1079 ExportDialog::fill_lists ()
1080 {
1081         track_list->clear();
1082         master_list->clear();
1083
1084         boost::shared_ptr<Session::RouteList> routes = session->get_routes ();
1085
1086         for (Session::RouteList::iterator ri = routes->begin(); ri != routes->end(); ++ri) {
1087
1088                 boost::shared_ptr<Route> route = (*ri);
1089
1090                 if (route->hidden()) {
1091                         continue;
1092                 }
1093
1094                 for (uint32_t i=0; i < route->n_outputs(); ++i) {
1095                         string name;
1096                         if (route->n_outputs() == 1) {
1097                                 name = route->name();
1098                         } else {
1099                                 name = string_compose("%1: out-%2", route->name(), i+1);
1100                         }
1101
1102                         if (route == session->master_out()) {
1103                                 TreeModel::iterator iter = master_list->append();
1104                                 TreeModel::Row row = *iter;
1105                                 row[exp_cols.output] = name;
1106                                 row[exp_cols.left] = false;
1107                                 row[exp_cols.right] = false;
1108                                 row[exp_cols.port] = route->output (i);
1109                         } else {
1110                                 TreeModel::iterator iter = track_list->append();
1111                                 TreeModel::Row row = *iter;
1112                                 row[exp_cols.output] = name;
1113                                 row[exp_cols.left] = false;
1114                                 row[exp_cols.right] = false;
1115                                 row[exp_cols.port] = route->output (i);
1116                         }
1117                 }
1118         }
1119 }
1120
1121
1122 bool
1123 ExportDialog::is_filepath_valid(string &filepath)
1124 {
1125         // sanity check file name first
1126
1127         struct stat statbuf;
1128
1129         if (filepath.empty()) {
1130                 string txt = _("Please enter a valid filename.");
1131                 MessageDialog msg (*this, txt, false, MESSAGE_ERROR, BUTTONS_OK, true);
1132                 msg.run();
1133                 return false;
1134         }
1135
1136         // check if file exists already and warn
1137
1138         if (stat (filepath.c_str(), &statbuf) == 0) {
1139                 if (S_ISDIR (statbuf.st_mode)) {
1140                         string txt = _("Please specify a complete filename for the audio file.");
1141                         MessageDialog msg (*this, txt, false, MESSAGE_ERROR, BUTTONS_OK, true);
1142                         msg.run();
1143                         return false;
1144                 }
1145                 else {
1146                         string txt = _("File already exists, do you want to overwrite it?");
1147                         MessageDialog msg (*this, txt, false, MESSAGE_QUESTION, BUTTONS_YES_NO, true);
1148                         if ((ResponseType) msg.run() == Gtk::RESPONSE_NO) {
1149                                 return false;
1150                         }
1151                 }
1152         }
1153
1154         // directory needs to exist and be writable
1155
1156         string dirpath = Glib::path_get_dirname (filepath);
1157         if (::access (dirpath.c_str(), W_OK) != 0) {
1158                 string txt = _("Cannot write file in: ") + dirpath;
1159                 MessageDialog msg (*this, txt, false, MESSAGE_ERROR, BUTTONS_OK, true);
1160                 msg.run();
1161                 return false;
1162         }
1163
1164         return true;
1165 }
1166
1167 void
1168 ExportDialog::initSpec(string &filepath)
1169 {
1170         spec.path = filepath;
1171         spec.progress = 0;
1172         spec.running = true;
1173         spec.stop = false;
1174         spec.port_map.clear();
1175
1176         if (channel_count_combo.get_active_text() == _("mono")) {
1177                 spec.channels = 1;
1178         } else {
1179                 spec.channels = 2;
1180         }
1181
1182         spec.format = 0;
1183
1184         spec.format |= sndfile_header_format_from_string (header_format_combo.get_active_text ());
1185
1186         if ((spec.format & SF_FORMAT_WAV) == 0) {
1187                 /* RIFF/WAV specifies endianess */
1188                 spec.format |= sndfile_endian_format_from_string (endian_format_combo.get_active_text ());
1189         }
1190
1191         spec.format |= sndfile_bitdepth_format_from_string (bitdepth_format_combo.get_active_text ());
1192
1193         string sr_str = sample_rate_combo.get_active_text();
1194         if (sr_str == N_("22.05kHz")) {
1195                 spec.sample_rate = 22050;
1196         } else if (sr_str == N_("44.1kHz")) {
1197                 spec.sample_rate = 44100;
1198         } else if (sr_str == N_("48kHz")) {
1199                 spec.sample_rate = 48000;
1200         } else if (sr_str == N_("88.2kHz")) {
1201                 spec.sample_rate = 88200;
1202         } else if (sr_str == N_("96kHz")) {
1203                 spec.sample_rate = 96000;
1204         } else if (sr_str == N_("192kHz")) {
1205                 spec.sample_rate = 192000;
1206         } else {
1207                 spec.sample_rate = session->frame_rate();
1208         }
1209
1210         string src_str = src_quality_combo.get_active_text();
1211         if (src_str == _("fastest")) {
1212                 spec.src_quality = SRC_ZERO_ORDER_HOLD;
1213         } else if (src_str == _("linear")) {
1214                 spec.src_quality = SRC_LINEAR;
1215         } else if (src_str == _("better")) {
1216                 spec.src_quality = SRC_SINC_FASTEST;
1217         } else if (src_str == _("intermediate")) {
1218                 spec.src_quality = SRC_SINC_MEDIUM_QUALITY;
1219         } else {
1220                 spec.src_quality = SRC_SINC_BEST_QUALITY;
1221         }
1222
1223         string dither_str = dither_type_combo.get_active_text();
1224         if (dither_str == _("None")) {
1225                 spec.dither_type = GDitherNone;
1226         } else if (dither_str == _("Rectangular")) {
1227                 spec.dither_type = GDitherRect;
1228         } else if (dither_str == _("Triangular")) {
1229                 spec.dither_type = GDitherTri;
1230         } else {
1231                 spec.dither_type = GDitherShaped;
1232         }
1233
1234         write_track_and_master_selection_to_spec();
1235 }
1236
1237
1238 void
1239 ExportDialog::write_track_and_master_selection_to_spec()
1240 {
1241         if(!track_and_master_selection_allowed){
1242                 return;
1243         }
1244
1245         uint32_t chan=0;
1246         Port *last_port = 0;
1247
1248         TreeModel::Children rows = master_selector.get_model()->children();
1249         TreeModel::Children::iterator ri;
1250         TreeModel::Row row;
1251         for (ri = rows.begin(); ri != rows.end(); ++ri) {
1252                 row = *ri;
1253                 Port* port = row[exp_cols.port];
1254
1255                 if (last_port != port) {
1256                         chan = 0;
1257                 }
1258
1259                 if (row[exp_cols.left]) {
1260                         spec.port_map[0].push_back (std::pair<Port*,uint32_t>(port, chan));
1261                 }
1262
1263                 if (spec.channels == 2) {
1264                         if (row[exp_cols.right]) {
1265                                 spec.port_map[1].push_back (std::pair<Port*,uint32_t>(port, chan));
1266                         }
1267                 }
1268         }
1269
1270         chan = 0;
1271         rows = track_selector.get_model()->children();
1272
1273         for (ri = rows.begin(); ri != rows.end(); ++ri) {
1274                 row = *ri;
1275
1276                 Port* port = row[exp_cols.port];
1277
1278                 if (last_port != port) {
1279                         chan = 0;
1280                 }
1281
1282                 if (row[exp_cols.left]) {
1283                         spec.port_map[0].push_back (std::pair<Port*,uint32_t>(port, chan));
1284                 }
1285
1286                 if (spec.channels == 2) {
1287                         if (row[exp_cols.right]) {
1288                                 spec.port_map[1].push_back (std::pair<Port*,uint32_t>(port, chan));
1289                         }
1290
1291                 }
1292
1293                 last_port = port;
1294                 ++chan;
1295         }
1296 }
1297
1298
1299 gint
1300 ExportDialog::window_closed (GdkEventAny *ignored)
1301 {
1302         end_dialog ();
1303         return TRUE;
1304 }
1305
1306 void
1307 ExportDialog::browse ()
1308 {
1309         FileChooserDialog dialog("Export to file", FILE_CHOOSER_ACTION_SAVE);
1310         dialog.set_transient_for(*this);
1311         dialog.set_filename (file_entry.get_text());
1312
1313         dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
1314         dialog.add_button(Gtk::Stock::OK, Gtk::RESPONSE_OK);
1315
1316         int result = dialog.run();
1317
1318         if (result == Gtk::RESPONSE_OK) {
1319                 string filename = dialog.get_filename();
1320
1321                 if (filename.length()) {
1322                         file_entry.set_text (filename);
1323                 }
1324         }
1325 }
1326
1327 void
1328 ExportDialog::track_selector_button_click ()
1329 {
1330         if (track_scroll.is_visible ()) {
1331                 track_scroll.hide ();
1332         } else {
1333                 track_scroll.show_all ();
1334         }
1335 }