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
  19 */
  20
  21 #include <unistd.h>
  22 #include <utility>
  23 #include <sys/stat.h>
  24 #include <fstream>
  25
  26 #include <samplerate.h>
  27
  28 #include <pbd/convert.h>
  29 #include <pbd/xml++.h>
  30
  31 #include <gtkmm2ext/utils.h>
  32 #include <gtkmm2ext/window_title.h>
  33
  34 #include <ardour/export.h>
  35 #include <ardour/session_directory.h>
  36 #include <ardour/sndfile_helpers.h>
  37 #include <ardour/audio_track.h>
  38 #include <ardour/audioregion.h>
  39 #include <ardour/audioengine.h>
  40 #include <ardour/gdither.h>
  41 #include <ardour/utils.h>
  42
  43 #include "export_dialog.h"
  44 #include "ardour_ui.h"
  45 #include "public_editor.h"
  46 #include "keyboard.h"
  47
  48 #include "i18n.h"
  49
  50 #define FRAME_NAME "BaseFrame"
  51
  52 using namespace std;
  53 using namespace ARDOUR;
  54 using namespace PBD;
  55 using namespace sigc;
  56 using namespace Gtk;
  57 using namespace Gtkmm2ext;
  58
  59 using PBD::internationalize;
  60
  61 static const gchar *sample_rates[] = {
  62         N_("22.05kHz"),
  63         N_("44.1kHz"),
  64         N_("48kHz"),
  65         N_("88.2kHz"),
  66         N_("96kHz"),
  67         N_("192kHz"),
  68         0
  69 };
  70
  71 static const gchar *src_quality[] = {
  72         N_("best"),
  73         N_("fastest"),
  74         N_("linear"),
  75         N_("better"),
  76         N_("intermediate"),
  77         0
  78 };
  79
  80 static const gchar *dither_types[] = {
  81         N_("None"),
  82         N_("Rectangular"),
  83         N_("Shaped Noise"),
  84         N_("Triangular"),
  85         0
  86 };
  87
  88 static const gchar* channel_strings[] = {
  89         N_("stereo"),
  90         N_("mono"),
  91         0
  92 };
  93
  94 static const gchar* cue_file_types[] = {
  95         N_("None"),
  96         N_("CUE"),
  97         N_("TOC"),
  98         0
  99 };
 100
 101 ExportDialog::ExportDialog(PublicEditor& e)
 102         : ArdourDialog ("export dialog"),
 103           editor (e),
 104           format_table (9, 2),
 105           format_frame (_("Format")),
 106           cue_file_label (_("CD Marker File Type"), 1.0, 0.5),
 107           channel_count_label (_("Channels"), 1.0, 0.5),
 108           header_format_label (_("File Type"), 1.0, 0.5),
 109           bitdepth_format_label (_("Sample Format"), 1.0, 0.5),
 110           endian_format_label (_("Sample Endianness"), 1.0, 0.5),
 111           sample_rate_label (_("Sample Rate"), 1.0, 0.5),
 112           src_quality_label (_("Conversion Quality"), 1.0, 0.5),
 113           dither_type_label (_("Dither Type"), 1.0, 0.5),
 114           cuefile_only_checkbox (_("Export CD Marker File Only")),
 115           file_browse_button (_("Browse")),
 116           track_selector_button (_("Specific tracks ..."))
 117 {
 118         guint32 n;
 119         guint32 len;
 120         guint32 maxlen;
 121
 122         session = 0;
 123         track_and_master_selection_allowed = true;
 124         channel_count_selection_allowed = true;
 125         export_cd_markers_allowed = true;
 126
 127         WindowTitle title(Glib::get_application_name());
 128         title += _("Export");
 129
 130         set_title (title.get_string());
 131         set_wmclass (X_("ardour_export"), "Ardour");
 132         set_name ("ExportWindow");
 133         add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
 134
 135         spec.running = false;
 136
 137         file_entry.set_name ("ExportFileNameEntry");
 138
 139         master_list = ListStore::create (exp_cols);
 140         master_selector.set_model (master_list);
 141
 142         master_selector.set_name ("ExportTrackSelector");
 143         master_selector.set_size_request (-1, 100);
 144         master_selector.append_column(_("Output"), exp_cols.output);
 145         master_selector.append_column_editable(_("Left"), exp_cols.left);
 146         master_selector.append_column_editable(_("Right"), exp_cols.right);
 147         master_selector.get_column(0)->set_min_width(100);
 148
 149         master_selector.get_column(1)->set_min_width(40);
 150         master_selector.get_column(1)->set_sizing(Gtk::TREE_VIEW_COLUMN_AUTOSIZE);
 151         master_selector.get_column(2)->set_min_width(40);
 152         master_selector.get_column(2)->set_sizing(Gtk::TREE_VIEW_COLUMN_AUTOSIZE);
 153         master_selector.get_selection()->set_mode (Gtk::SELECTION_NONE);
 154
 155         track_list = ListStore::create (exp_cols);
 156         track_selector.set_model (track_list);
 157
 158         track_selector.set_name ("ExportTrackSelector");
 159         track_selector.set_size_request (-1, 130);
 160         track_selector.append_column(_("Output"), exp_cols.output);
 161         track_selector.append_column_editable(_("Left"), exp_cols.left);
 162         track_selector.append_column_editable(_("Right"), exp_cols.right);
 163
 164         track_selector.get_column(0)->set_min_width(100);
 165         track_selector.get_column(1)->set_min_width(40);
 166         track_selector.get_column(1)->set_sizing(Gtk::TREE_VIEW_COLUMN_AUTOSIZE);
 167         track_selector.get_column(2)->set_min_width(40);
 168         track_selector.get_column(2)->set_sizing(Gtk::TREE_VIEW_COLUMN_AUTOSIZE);
 169         track_selector.get_selection()->set_mode (Gtk::SELECTION_NONE);
 170
 171         progress_bar.set_name ("ExportProgress");
 172
 173         format_frame.add (format_table);
 174         format_frame.set_name (FRAME_NAME);
 175
 176         track_scroll.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
 177         master_scroll.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
 178
 179         get_vbox()->pack_start (file_frame, false, false);
 180
 181         hpacker.set_spacing (5);
 182         hpacker.set_border_width (5);
 183         hpacker.pack_start (format_frame, false, false);
 184
 185         master_scroll.add (master_selector);
 186         track_scroll.add (track_selector);
 187
 188         master_scroll.set_size_request (220, 100);
 189         track_scroll.set_size_request (220, 100);
 190
 191         /* we may hide some of these later */
 192         track_vpacker.pack_start (master_scroll);
 193         track_vpacker.pack_start (track_scroll);
 194         track_vpacker.pack_start (track_selector_button, Gtk::PACK_EXPAND_PADDING);
 195
 196         hpacker.pack_start (track_vpacker);
 197
 198         get_vbox()->pack_start (hpacker);
 199
 200         track_selector_button.set_name ("EditorGTKButton");
 201         track_selector_button.signal_clicked().connect (mem_fun(*this, &ExportDialog::track_selector_button_click));
 202
 203         get_vbox()->pack_start (progress_bar, false, false);
 204
 205         Gtkmm2ext::set_size_request_to_display_given_text (file_entry, X_("Kg/quite/a/reasonable/size/for/files/i/think"), 5, 8);
 206
 207         file_hbox.set_spacing (5);
 208         file_hbox.set_border_width (5);
 209         file_hbox.pack_start (file_entry, true, true);
 210         file_hbox.pack_start (file_browse_button, false, false);
 211
 212         file_frame.add (file_hbox);
 213         file_frame.set_border_width (5);
 214         file_frame.set_name (FRAME_NAME);
 215
 216         /* pop_strings needs to be created on the stack because set_popdown_strings()
 217            takes a reference.
 218         */
 219
 220         vector<string> pop_strings = I18N(sample_rates);
 221         Gtkmm2ext::set_popdown_strings (sample_rate_combo, pop_strings);
 222         sample_rate_combo.set_active_text (pop_strings.front());
 223         pop_strings = I18N(src_quality);
 224         Gtkmm2ext::set_popdown_strings (src_quality_combo, pop_strings);
 225         src_quality_combo.set_active_text (pop_strings.front());
 226         pop_strings = I18N(dither_types);
 227         Gtkmm2ext::set_popdown_strings (dither_type_combo, pop_strings);
 228         dither_type_combo.set_active_text (pop_strings.front());
 229         pop_strings = I18N(channel_strings);
 230         Gtkmm2ext::set_popdown_strings (channel_count_combo, pop_strings);
 231         channel_count_combo.set_active_text (pop_strings.front());
 232         pop_strings = I18N((const char **) sndfile_header_formats_strings);
 233         Gtkmm2ext::set_popdown_strings (header_format_combo, pop_strings);
 234         header_format_combo.set_active_text (pop_strings.front());
 235         pop_strings = I18N((const char **) sndfile_bitdepth_formats_strings);
 236         Gtkmm2ext::set_popdown_strings (bitdepth_format_combo, pop_strings);
 237         bitdepth_format_combo.set_active_text (pop_strings.front());
 238         pop_strings = I18N((const char **) sndfile_endian_formats_strings);
 239         Gtkmm2ext::set_popdown_strings (endian_format_combo, pop_strings);
 240         endian_format_combo.set_active_text (pop_strings.front());
 241         pop_strings = I18N(cue_file_types);
 242         Gtkmm2ext::set_popdown_strings (cue_file_combo, pop_strings);
 243         cue_file_combo.set_active_text (pop_strings.front());
 244
 245         /* this will re-sensitized as soon as a non RIFF/WAV
 246            header format is chosen.
 247         */
 248
 249         endian_format_combo.set_sensitive (false);
 250
 251         /* determine longest strings at runtime */
 252
 253         maxlen = 0;
 254         const char *longest = X_("gl"); /* translators: one ascender, one descender */
 255         string longest_str;
 256
 257         for (n = 0; n < SNDFILE_HEADER_FORMATS; ++n) {
 258                 if ((len = strlen (sndfile_header_formats_strings[n])) > maxlen) {
 259                         maxlen = len;
 260                         longest = sndfile_header_formats_strings[n];
 261                 }
 262         }
 263
 264         for (n = 0; n < SNDFILE_BITDEPTH_FORMATS; ++n) {
 265                 if ((len = strlen (sndfile_bitdepth_formats_strings[n])) > maxlen) {
 266                         maxlen = len;
 267                         longest = sndfile_bitdepth_formats_strings[n];
 268                 }
 269         }
 270
 271         for (n = 0; n < SNDFILE_ENDIAN_FORMATS; ++n) {
 272                 if ((len = strlen (sndfile_endian_formats_strings[n])) > maxlen) {
 273                         maxlen = len;
 274                         longest = sndfile_endian_formats_strings[n];
 275                 }
 276         }
 277
 278         longest_str = longest;
 279
 280         /* force ascender + descender */
 281
 282         longest_str[0] = 'g';
 283         longest_str[1] = 'l';
 284
 285         //Gtkmm2ext::set_size_request_to_display_given_text (header_format_combo, longest_str.c_str(), 5+FUDGE, 5);
 286
 287         // TRANSLATORS: "slereg" is "stereo" with ascender and descender substituted
 288         //Gtkmm2ext::set_size_request_to_display_given_text (channel_count_combo, _("slereg"), 5+FUDGE, 5);
 289
 290 /*      header_format_combo.set_focus_on_click (true);
 291         bitdepth_format_combo.set_focus_on_click (true);
 292         endian_format_combo.set_focus_on_click (true);
 293         channel_count_combo.set_focus_on_click (true);
 294         src_quality_combo.set_focus_on_click (true);
 295         dither_type_combo.set_focus_on_click (true);
 296         sample_rate_combo.set_focus_on_click (true);
 297         cue_file_combo.set_focus_on_click (true);
 298 */
 299         dither_type_label.set_name ("ExportFormatLabel");
 300         sample_rate_label.set_name ("ExportFormatLabel");
 301         src_quality_label.set_name ("ExportFormatLabel");
 302         channel_count_label.set_name ("ExportFormatLabel");
 303         header_format_label.set_name ("ExportFormatLabel");
 304         bitdepth_format_label.set_name ("ExportFormatLabel");
 305         endian_format_label.set_name ("ExportFormatLabel");
 306         cue_file_label.set_name ("ExportFormatLabel");
 307
 308         header_format_combo.set_name ("ExportFormatDisplay");
 309         bitdepth_format_combo.set_name ("ExportFormatDisplay");
 310         endian_format_combo.set_name ("ExportFormatDisplay");
 311         channel_count_combo.set_name ("ExportFormatDisplay");
 312         dither_type_combo.set_name ("ExportFormatDisplay");
 313         src_quality_combo.set_name ("ExportFormatDisplay");
 314         sample_rate_combo.set_name ("ExportFormatDisplay");
 315         cue_file_combo.set_name ("ExportFormatDisplay");
 316
 317         cuefile_only_checkbox.set_name ("ExportCheckbox");
 318
 319         format_table.set_homogeneous (false);
 320         format_table.set_border_width (5);
 321         format_table.set_col_spacings (5);
 322         format_table.set_row_spacings (5);
 323
 324         format_table.attach (channel_count_label, 0, 1, 0, 1);
 325         format_table.attach (channel_count_combo, 1, 2, 0, 1);
 326
 327         format_table.attach (header_format_label, 0, 1, 1, 2);
 328         format_table.attach (header_format_combo, 1, 2, 1, 2);
 329
 330         format_table.attach (bitdepth_format_label, 0, 1, 2, 3);
 331         format_table.attach (bitdepth_format_combo, 1, 2, 2, 3);
 332
 333         format_table.attach (endian_format_label, 0, 1, 3, 4);
 334         format_table.attach (endian_format_combo, 1, 2, 3, 4);
 335
 336         format_table.attach (sample_rate_label, 0, 1, 4, 5);
 337         format_table.attach (sample_rate_combo, 1, 2, 4, 5);
 338
 339         format_table.attach (src_quality_label, 0, 1, 5, 6);
 340         format_table.attach (src_quality_combo, 1, 2, 5, 6);
 341
 342         format_table.attach (dither_type_label, 0, 1, 6, 7);
 343         format_table.attach (dither_type_combo, 1, 2, 6, 7);
 344
 345         format_table.attach (cue_file_label, 0, 1, 7, 8);
 346         format_table.attach (cue_file_combo, 1, 2, 7, 8);
 347         format_table.attach (cuefile_only_checkbox, 0, 2, 8, 9);
 348
 349         file_entry.set_name ("ExportFileDisplay");
 350
 351         signal_delete_event().connect (mem_fun(*this, &ExportDialog::window_closed));
 352
 353         cancel_button = add_button (Stock::CANCEL, RESPONSE_CANCEL);
 354         cancel_button->signal_clicked().connect (mem_fun(*this, &ExportDialog::end_dialog));
 355         ok_button = add_button (_("Export"), RESPONSE_ACCEPT);
 356         ok_button->signal_clicked().connect (mem_fun(*this, &ExportDialog::do_export));
 357
 358         file_browse_button.set_name ("EditorGTKButton");
 359         file_browse_button.signal_clicked().connect (mem_fun(*this, &ExportDialog::browse));
 360
 361         channel_count_combo.signal_changed().connect (mem_fun(*this, &ExportDialog::channels_chosen));
 362         bitdepth_format_combo.signal_changed().connect (mem_fun(*this, &ExportDialog::bitdepth_chosen));
 363         header_format_combo.signal_changed().connect (mem_fun(*this, &ExportDialog::header_chosen));
 364         sample_rate_combo.signal_changed().connect (mem_fun(*this, &ExportDialog::sample_rate_chosen));
 365         cue_file_combo.signal_changed().connect (mem_fun(*this, &ExportDialog::cue_file_type_chosen));
 366 }
 367
 368 ExportDialog::~ExportDialog()
 369 {
 370 }
 371
 372 void
 373 ExportDialog::do_not_allow_track_and_master_selection()
 374 {
 375         track_and_master_selection_allowed = false;
 376         track_vpacker.set_no_show_all();
 377 }
 378
 379 void
 380 ExportDialog::do_not_allow_channel_count_selection()
 381 {
 382         channel_count_selection_allowed = false;
 383         channel_count_combo.set_no_show_all();
 384         channel_count_label.set_no_show_all();
 385 }
 386
 387 void
 388 ExportDialog::do_not_allow_export_cd_markers()
 389 {
 390         export_cd_markers_allowed = false;
 391         cue_file_label.set_no_show_all();
 392         cue_file_combo.set_no_show_all();
 393         cuefile_only_checkbox.set_no_show_all();
 394 }
 395
 396 void
 397 ExportDialog::connect_to_session (Session *s)
 398 {
 399         session = s;
 400         session->GoingAway.connect (mem_fun(*this, &Window::hide_all));
 401
 402         switch (session->frame_rate()) {
 403         case 22050:
 404                 sample_rate_combo.set_active_text (_("22.05kHz"));
 405                 break;
 406         case 44100:
 407                 sample_rate_combo.set_active_text (_("44.1kHz"));
 408                 break;
 409         case 48000:
 410                 sample_rate_combo.set_active_text (_("48kHz"));
 411                 break;
 412         case 88200:
 413                 sample_rate_combo.set_active_text (_("88.2kHz"));
 414                 break;
 415         case 96000:
 416                 sample_rate_combo.set_active_text (_("96kHz"));
 417                 break;
 418         case 192000:
 419                 sample_rate_combo.set_active_text (_("192kHz"));
 420                 break;
 421         default:
 422                 sample_rate_combo.set_active_text (_("44.1kHz"));
 423                 break;
 424         }
 425
 426         src_quality_combo.set_sensitive (false);
 427
 428         set_state();
 429 }
 430
 431 void
 432 ExportDialog::set_state()
 433 {
 434         XMLNode* node = session->instant_xml(X_("ExportDialog"), session->path());
 435         XMLProperty* prop;
 436
 437         if (node) {
 438
 439                 if ((prop = node->property (X_("sample_rate"))) != 0) {
 440                         sample_rate_combo.set_active_text(prop->value());
 441                 }
 442                 if ((prop = node->property (X_("src_quality"))) != 0) {
 443                         src_quality_combo.set_active_text(prop->value());
 444                 }
 445                 if ((prop = node->property (X_("dither_type"))) != 0) {
 446                         dither_type_combo.set_active_text(prop->value());
 447                 }
 448                 if ((prop = node->property (X_("channel_count"))) != 0) {
 449                         channel_count_combo.set_active_text(prop->value());
 450                 }
 451                 if ((prop = node->property (X_("header_format"))) != 0) {
 452                         header_format_combo.set_active_text(prop->value());
 453                 }
 454                 if ((prop = node->property (X_("bitdepth_format"))) != 0) {
 455                         bitdepth_format_combo.set_active_text(prop->value());
 456                 }
 457                 if ((prop = node->property (X_("endian_format"))) != 0) {
 458                         endian_format_combo.set_active_text(prop->value());
 459                 }
 460                 if ((prop = node->property (X_("filename"))) != 0) {
 461                         file_entry.set_text(prop->value());
 462                 }
 463                 if ((prop = node->property (X_("cue_file_type"))) != 0) {
 464                         cue_file_combo.set_active_text(prop->value());
 465                 }
 466         }
 467
 468         header_chosen ();
 469         bitdepth_chosen();
 470         channels_chosen();
 471         sample_rate_chosen();
 472
 473         if (session->master_out()) {
 474                 track_scroll.hide ();
 475         } else {
 476                 master_scroll.hide ();
 477                 track_selector_button.hide ();
 478         }
 479
 480         if (!node) {
 481                 return;
 482         }
 483
 484         if (session->master_out()) {
 485                 XMLNode* master = find_named_node(*node, (X_("Master")));
 486                 int nchns;
 487
 488                 if (!master) {
 489
 490                         /* default is to use all */
 491                         if (channel_count_combo.get_active_text() == _("mono")) {
 492                                 nchns = 1;
 493                         } else {
 494                                 nchns = 2;
 495                         }
 496
 497                         TreeModel::Children rows = master_selector.get_model()->children();
 498                         for (uint32_t r = 0; r < session->master_out()->n_outputs().n_audio(); ++r) {
 499                                 if (nchns == 2) {
 500                                         if (r % 2) {
 501                                                 rows[r][exp_cols.right] = true;
 502                                         } else {
 503                                                 rows[r][exp_cols.left] = true;
 504                                         }
 505                                 } else {
 506                                         rows[r][exp_cols.left] = true;
 507                                 }
 508                         }
 509
 510                 } else {
 511                         /* XXX use XML state */
 512                 }
 513         }
 514
 515         XMLNode* tracks = find_named_node(*node, (X_("Tracks")));
 516         if (!tracks) {
 517                 return;
 518         }
 519
 520         XMLNodeList track_list = tracks->children(X_("Track"));
 521         TreeModel::Children rows = track_selector.get_model()->children();
 522         TreeModel::Children::iterator ri = rows.begin();
 523         TreeModel::Row row;
 524
 525         for (XMLNodeIterator it = track_list.begin(); it != track_list.end(); ++it, ++ri) {
 526                 if (ri == rows.end()){
 527                         break;
 528                 }
 529
 530                 XMLNode* track = *it;
 531                 row = *ri;
 532
 533                 if ((prop = track->property(X_("channel1"))) != 0) {
 534                         if (prop->value() == X_("on")) {
 535                                 row[exp_cols.left] = true;
 536                         } else {
 537                                 row[exp_cols.left] = false;
 538                         }
 539                 }
 540
 541                 if ((prop = track->property(X_("channel2"))) != 0) {
 542                         if (prop->value() == X_("on")) {
 543                                 row[exp_cols.right] = true;
 544                         } else {
 545                                 row[exp_cols.right] = false;
 546                         }
 547                 }
 548         }
 549 }
 550
 551 void
 552 ExportDialog::save_state()
 553 {
 554         if (!session) {
 555                 return;
 556         }
 557
 558         XMLNode* node = new XMLNode(X_("ExportDialog"));
 559
 560         node->add_property(X_("sample_rate"), sample_rate_combo.get_active_text());
 561         node->add_property(X_("src_quality"), src_quality_combo.get_active_text());
 562         node->add_property(X_("dither_type"), dither_type_combo.get_active_text());
 563         node->add_property(X_("channel_count"), channel_count_combo.get_active_text());
 564         node->add_property(X_("header_format"), header_format_combo.get_active_text());
 565         node->add_property(X_("bitdepth_format"), bitdepth_format_combo.get_active_text());
 566         node->add_property(X_("endian_format"), endian_format_combo.get_active_text());
 567         node->add_property(X_("filename"), file_entry.get_text());
 568         node->add_property(X_("cue_file_type"), cue_file_combo.get_active_text());
 569
 570         XMLNode* tracks = new XMLNode(X_("Tracks"));
 571
 572         TreeModel::Children rows = track_selector.get_model()->children();
 573         TreeModel::Row row;
 574         for (TreeModel::Children::iterator ri = rows.begin(); ri != rows.end(); ++ri) {
 575                 XMLNode* track = new XMLNode(X_("Track"));
 576
 577                 row = *ri;
 578                 track->add_property(X_("channel1"), row[exp_cols.left] ? X_("on") : X_("off"));
 579                 track->add_property(X_("channel2"), row[exp_cols.right] ? X_("on") : X_("off"));
 580
 581                 tracks->add_child_nocopy(*track);
 582         }
 583         node->add_child_nocopy(*tracks);
 584
 585         session->add_instant_xml(*node, session->path());
 586 }
 587
 588 void
 589 ExportDialog::set_range (nframes_t start, nframes_t end)
 590 {
 591         spec.start_frame = start;
 592         spec.end_frame = end;
 593 }
 594
 595 gint
 596 ExportDialog::progress_timeout ()
 597 {
 598         progress_bar.set_fraction (spec.progress);
 599         return TRUE;
 600 }
 601
 602 void
 603 frames_to_cd_frames_string (char* buf, nframes_t when, nframes_t fr)
 604 {
 605
 606   long unsigned int remainder;
 607   int mins, secs, frames;
 608
 609         mins = when / (60 * fr);
 610         remainder = when - (mins * 60 * fr);
 611         secs = remainder / fr;
 612         remainder -= secs * fr;
 613         frames = remainder / (fr / 75);
 614         sprintf (buf, " %02d:%02d:%02d", mins, secs, frames);
 615
 616 }
 617
 618 struct LocationSortByStart {
 619     bool operator() (Location *a, Location *b) {
 620             return a->start() < b->start();
 621     }
 622 };
 623
 624 void
 625 ExportDialog::export_toc_file (Locations::LocationList& locations, const string& path)
 626 {
 627         if(!export_cd_markers_allowed){
 628                 return;
 629         }
 630
 631     string filepath = path + ".toc";
 632         ofstream out (filepath.c_str());
 633         long unsigned int last_end_time = spec.start_frame, last_start_time = spec.start_frame;
 634         int numtracks = 0;
 635         gchar buf[18];
 636
 637         if (!out) {
 638                 error << string_compose(_("Editor: cannot open \"%1\" as export file for CD toc file"), filepath) << endmsg;
 639                 return;
 640         }
 641         out << "CD_DA" << endl;
 642         out << "CD_TEXT {" << endl << "  LANGUAGE_MAP {" << endl << "    0 : EN" << endl << "  }" << endl;
 643         out << "  LANGUAGE 0 {" << endl << "    TITLE \"" << session->name() << "\"" << endl << "  }" << endl << "}" << endl;
 644
 645         Locations::LocationList::iterator i;
 646         Locations::LocationList temp;
 647
 648         for (i = locations.begin(); i != locations.end(); ++i) {
 649           if ((*i)->start() >= spec.start_frame && (*i)->end() <= spec.end_frame && (*i)->is_cd_marker() && !(*i)->is_end()) {
 650             temp.push_back (*i);
 651             if (!(*i)->is_mark()) {
 652               numtracks ++;
 653             }
 654           }
 655         }
 656
 657         if (numtracks == 0 ) {
 658                     /* the user supplied no track markers.
 659                        we now treat the session as one track.*/
 660
 661                     out << endl << "TRACK AUDIO" << endl;
 662
 663                     out << "COPY" << endl;
 664
 665                     out << "NO PRE_EMPHASIS" << endl;
 666
 667                     /* XXX add session properties for catalog etc.
 668                        (so far only the session name is used) */
 669
 670                     out << "CD_TEXT {" << endl << "  LANGUAGE 0 {" << endl << "     TITLE \"" << session->name() << "\"" << endl;
 671                     out << "  }" << endl << "}" << endl;
 672
 673                     out << "FILE \"" << path << "\" ";
 674                     out << "00:00:00 " ;
 675                     frames_to_cd_frames_string (buf, spec.end_frame - spec.start_frame, session->frame_rate());
 676                     out << buf << endl;
 677                     out << "START 00:00:00" << endl;
 678
 679                     last_start_time = spec.start_frame;
 680                     last_end_time = spec.end_frame;
 681         }
 682
 683         if (temp.size()) {
 684                 LocationSortByStart cmp;
 685                 temp.sort (cmp);
 686
 687                 for (i = temp.begin(); i != temp.end(); ++i) {
 688
 689                       if (!(*i)->is_mark()) {
 690                         /*this is a track */
 691                         out << endl << "TRACK AUDIO" << endl;
 692
 693                         if ((*i)->cd_info.find("scms") != (*i)->cd_info.end())  {
 694                           out << "NO ";
 695                         }
 696                         out << "COPY" << endl;
 697
 698                         if ((*i)->cd_info.find("preemph") != (*i)->cd_info.end())  {
 699                           out << "PRE_EMPHASIS" << endl;
 700                         } else {
 701                           out << "NO PRE_EMPHASIS" << endl;
 702                         }
 703
 704                         if ((*i)->cd_info.find("isrc") != (*i)->cd_info.end())  {
 705                           out << "ISRC \"" << (*i)->cd_info["isrc"] << "\"" << endl;
 706                         }
 707
 708                         out << "CD_TEXT {" << endl << "  LANGUAGE 0 {" << endl << "     TITLE \"" << (*i)->name() << "\"" << endl;
 709                         if ((*i)->cd_info.find("performer") != (*i)->cd_info.end()) {
 710                           out << "     PERFORMER \"" << (*i)->cd_info["performer"]  << "\"" << endl;
 711                         }
 712                         if ((*i)->cd_info.find("string_composer") != (*i)->cd_info.end()) {
 713                           out  << "     COMPOSER \"" << (*i)->cd_info["string_composer"] << "\"" << endl;
 714                         }
 715
 716                         if ((*i)->cd_info.find("isrc") != (*i)->cd_info.end()) {
 717                           out  << "     ISRC \"";
 718                           out << (*i)->cd_info["isrc"].substr(0,2) << "-";
 719                           out << (*i)->cd_info["isrc"].substr(2,3) << "-";
 720                           out << (*i)->cd_info["isrc"].substr(5,2) << "-";
 721                           out << (*i)->cd_info["isrc"].substr(7,5) << "\"" << endl;
 722                         }
 723
 724                         out << "  }" << endl << "}" << endl;
 725
 726                         frames_to_cd_frames_string (buf, last_end_time - spec.start_frame, session->frame_rate());
 727                         out << "FILE \"" << path << "\" " << buf;
 728
 729                         frames_to_cd_frames_string (buf, (*i)->end() - last_end_time, session->frame_rate());
 730                         out << buf << endl;
 731
 732                         frames_to_cd_frames_string (buf, (*i)->start() - last_end_time, session->frame_rate());
 733                         out << "START" << buf << endl;
 734
 735                         last_start_time = (*i)->start();
 736                         last_end_time = (*i)->end();
 737
 738
 739                       } else  if ((*i)->start() < last_end_time) {
 740                         /* this is an index within a track */
 741
 742                         frames_to_cd_frames_string (buf, (*i)->start() - last_start_time, session->frame_rate());
 743                         out << "INDEX" << buf << endl;
 744                       }
 745                 }
 746         }
 747
 748 }
 749
 750 void
 751 ExportDialog::export_cue_file (Locations::LocationList& locations, const string& path)
 752 {
 753         if(!export_cd_markers_allowed){
 754                 return;
 755         }
 756
 757     string filepath = path + ".cue";
 758         ofstream out (filepath.c_str());
 759         gchar buf[18];
 760         long unsigned int last_track_end = spec.start_frame;
 761         int numtracks = 0, tracknum = 0, indexnum = 0;
 762
 763         if (!out) {
 764                 error << string_compose(_("Editor: cannot open \"%1\" as export file for CD cue file"), filepath) << endmsg;
 765                 return;
 766         }
 767
 768         Locations::LocationList::iterator i;
 769         Locations::LocationList temp;
 770
 771         for (i = locations.begin(); i != locations.end(); ++i) {
 772                 if ((*i)->start() >= spec.start_frame && (*i)->end() <= spec.end_frame && (*i)->is_cd_marker() && !(*i)->is_end()) {
 773                         temp.push_back (*i);
 774                         if (!(*i)->is_mark()) {
 775                                 numtracks++;
 776                         }
 777                 }
 778         }
 779
 780         out << "REM Cue file generated by Ardour" << endl;
 781         out << "TITLE \"" << session->name() << "\"" << endl;
 782
 783         if ((header_format_combo.get_active_text() == N_("WAV"))) {
 784                   out << "FILE " << path  << " WAVE" << endl;
 785         } else {
 786                   out << "FILE " << path  << ' ' << (header_format_combo.get_active_text()) << endl;
 787         }
 788
 789         if (numtracks == 0) {
 790                     /* the user has supplied no track markers.
 791                        the entire export is treated as one track.
 792                     */
 793
 794                   numtracks++;
 795                   tracknum++;
 796                   indexnum = 0;
 797                   out << endl << "TRACK " << tracknum << " AUDIO" << endl;
 798                   out << "FLAGS " ;
 799
 800                   out << "DCP " << endl;
 801
 802                   /* use the session name*/
 803
 804                   if (session->name() != "") {
 805                     out << "TITLE \"" << session->name() << "\"" << endl;
 806                   }
 807
 808                   /* no pregap in this case */
 809
 810                   out << "INDEX 00 00:00:00" << endl;
 811                   indexnum++;
 812                   out << "INDEX 01 00:00:00" << endl;
 813                   indexnum++;
 814                   last_track_end = spec.end_frame;
 815         }
 816
 817         if (temp.size()) {
 818                 LocationSortByStart cmp;
 819                 temp.sort (cmp);
 820
 821                 for ( i = temp.begin(); i != temp.end(); ++i) {
 822
 823                     if (!(*i)->is_mark() && ((*i)->start() >= last_track_end)) {
 824                       /* this is a track and it doesn't start inside another one*/
 825
 826                       tracknum++;
 827                       indexnum = 0;
 828                       out << endl << "TRACK " << tracknum << " AUDIO" << endl;
 829                       out << "FLAGS " ;
 830
 831                       if ((*i)->cd_info.find("scms") != (*i)->cd_info.end())  {
 832                         out << "SCMS ";
 833                       } else {
 834                         out << "DCP ";
 835                       }
 836
 837                       if ((*i)->cd_info.find("preemph") != (*i)->cd_info.end())  {
 838                         out << "PRE";
 839                       }
 840                       out << endl;
 841
 842                       if ((*i)->cd_info.find("isrc") != (*i)->cd_info.end())  {
 843                         out << "ISRC " << (*i)->cd_info["isrc"] << endl;
 844
 845                       }
 846                       if ((*i)->name() != "") {
 847                         out << "TITLE \"" << (*i)->name() << "\"" << endl;
 848                       }
 849
 850                       if ((*i)->cd_info.find("performer") != (*i)->cd_info.end()) {
 851                         out << "PERFORMER \"" <<  (*i)->cd_info["performer"] << "\"" << endl;
 852                       }
 853
 854                       if ((*i)->cd_info.find("string_composer") != (*i)->cd_info.end()) {
 855                         out << "SONGWRITER \"" << (*i)->cd_info["string_composer"]  << "\"" << endl;
 856                       }
 857                         snprintf (buf, sizeof(buf), "INDEX %02d", indexnum);
 858                         out << buf;
 859                         frames_to_cd_frames_string (buf, last_track_end - spec.start_frame, session->frame_rate());
 860                         out << buf << endl;
 861                         indexnum++;
 862                         last_track_end = (*i)->end();
 863                     }
 864                     if ((tracknum > 0) && ((*i)->start() < last_track_end)) {
 865                       /*this is an index and it lies within a track*/
 866                       snprintf (buf, sizeof(buf), "INDEX %02d", indexnum);
 867                       out << buf;
 868                       frames_to_cd_frames_string (buf,(*i)->start() - spec.start_frame, session->frame_rate());
 869                       out << buf << endl;
 870                       indexnum++;
 871                     }
 872                 }
 873         }
 874
 875 }
 876
 877 void
 878 ExportDialog::do_export_cd_markers (const string& path,const string& cuefile_type)
 879 {
 880         if (cuefile_type == _("TOC")) {
 881                 session->locations()->apply (*this, &ExportDialog::export_toc_file, path);
 882         } else {
 883                 session->locations()->apply (*this, &ExportDialog::export_cue_file, path);
 884         }
 885 }
 886
 887
 888 void
 889 ExportDialog::do_export ()
 890 {
 891         string filepath = file_entry.get_text();
 892
 893         if(!is_filepath_valid(filepath)){
 894                 return;
 895         }
 896
 897         if (export_cd_markers_allowed) {
 898                 if (cue_file_combo.get_active_text () != _("None")) {
 899                         do_export_cd_markers (file_entry.get_text(), cue_file_combo.get_active_text ());
 900                 }
 901
 902                 if (cuefile_only_checkbox.get_active()) {
 903                         end_dialog ();
 904                         return;
 905                 }
 906         }
 907
 908         ok_button->set_sensitive(false);
 909         save_state();
 910
 911         set_modal (true);
 912
 913         // read user input into spec
 914         initSpec(filepath);
 915
 916         progress_connection = Glib::signal_timeout().connect (mem_fun(*this, &ExportDialog::progress_timeout), 100);
 917         cancel_label.set_text (_("Stop Export"));
 918
 919         export_audio_data();
 920
 921         progress_connection.disconnect ();
 922         end_dialog ();
 923 }
 924
 925 void
 926 ExportDialog::end_dialog ()
 927 {
 928         if (spec.running) {
 929                 spec.stop = true;
 930
 931                 while (spec.running) {
 932                         if (gtk_events_pending()) {
 933                                 gtk_main_iteration ();
 934                         } else {
 935                                 usleep (10000);
 936                         }
 937                 }
 938         }
 939
 940         session->finalize_audio_export ();
 941
 942         hide_all ();
 943
 944         set_modal (false);
 945         ok_button->set_sensitive(true);
 946 }
 947
 948 void
 949 ExportDialog::start_export ()
 950 {
 951         if (session == 0) {
 952                 return;
 953         }
 954
 955         /* If the filename hasn't been set before, use the
 956            current session's export directory as a default
 957            location for the export.
 958         */
 959
 960         if (file_entry.get_text().length() == 0) {
 961
 962                 sys::path export_file_path = session->session_directory().export_path();
 963
 964                 if (!wants_dir()) {
 965                         export_file_path /= "export.wav";
 966                 }
 967
 968                 file_entry.set_text (export_file_path.to_string());
 969         }
 970
 971         progress_bar.set_fraction (0);
 972         cancel_label.set_text (_("Cancel"));
 973
 974         show_all ();
 975
 976         if (session->master_out()) {
 977                 track_scroll.hide ();
 978         } else {
 979                 master_scroll.hide ();
 980                 track_selector_button.hide ();
 981         }
 982 }
 983
 984 void
 985 ExportDialog::header_chosen ()
 986 {
 987         if (sndfile_header_format_from_string (header_format_combo.get_active_text ()) == SF_FORMAT_WAV) {
 988                 endian_format_combo.set_sensitive (false);
 989         } else {
 990                 endian_format_combo.set_sensitive (true);
 991         }
 992 }
 993
 994 void
 995 ExportDialog::bitdepth_chosen ()
 996 {
 997         int format = sndfile_bitdepth_format_from_string (bitdepth_format_combo.get_active_text ());
 998         switch (format) {
 999         case SF_FORMAT_PCM_24:
1000         case SF_FORMAT_PCM_32:
1001         case SF_FORMAT_FLOAT:
1002                 dither_type_combo.set_sensitive (false);
1003                 break;
1004
1005         default:
1006                 dither_type_combo.set_sensitive (true);
1007                 break;
1008         }
1009 }
1010
1011 void
1012 ExportDialog::cue_file_type_chosen ()
1013 {
1014         if (cue_file_combo.get_active_text () != "None") {
1015                 cuefile_only_checkbox.set_sensitive (true);
1016         } else {
1017                 cuefile_only_checkbox.set_active (false);
1018                 cuefile_only_checkbox.set_sensitive (false);
1019         }
1020 }
1021
1022 void
1023 ExportDialog::sample_rate_chosen ()
1024 {
1025         string sr_str = sample_rate_combo.get_active_text();
1026         nframes_t rate;
1027
1028         if (sr_str == N_("22.05kHz")) {
1029                 rate = 22050;
1030         } else if (sr_str == _("44.1kHz")) {
1031                 rate = 44100;
1032         } else if (sr_str == _("48kHz")) {
1033                 rate = 48000;
1034         } else if (sr_str == _("88.2kHz")) {
1035                 rate = 88200;
1036         } else if (sr_str == _("96kHz")) {
1037                 rate = 96000;
1038         } else if (sr_str == _("192kHz")) {
1039                 rate = 192000;
1040         } else {
1041                 rate = session->frame_rate();
1042         }
1043
1044         if (rate != session->frame_rate()) {
1045                 src_quality_combo.set_sensitive (true);
1046         } else {
1047                 src_quality_combo.set_sensitive (false);
1048         }
1049 }
1050
1051 void
1052 ExportDialog::channels_chosen ()
1053 {
1054         bool mono;
1055
1056         mono = (channel_count_combo.get_active_text() == _("mono"));
1057
1058         if (mono) {
1059                 track_selector.get_column(2)->set_visible(false);
1060                 track_selector.get_column(1)->set_title(_("Export"));
1061
1062                 if (session->master_out()) {
1063                         master_selector.get_column(2)->set_visible(false);
1064                         master_selector.get_column(1)->set_title(_("Export"));
1065                 }
1066
1067         } else {
1068                 track_selector.get_column(2)->set_visible(true);
1069                 track_selector.get_column(1)->set_title(_("Left"));
1070
1071                 if (session->master_out()) {
1072                         master_selector.get_column(2)->set_visible(true);
1073                         master_selector.get_column(1)->set_title(_("Left"));
1074                 }
1075         }
1076
1077         fill_lists();
1078 }
1079
1080 void
1081 ExportDialog::fill_lists ()
1082 {
1083         track_list->clear();
1084         master_list->clear();
1085
1086         boost::shared_ptr<Session::RouteList> routes = session->get_routes ();
1087
1088         for (Session::RouteList::iterator ri = routes->begin(); ri != routes->end(); ++ri) {
1089
1090                 boost::shared_ptr<Route> route = (*ri);
1091
1092                 if (route->hidden()) {
1093                         continue;
1094                 }
1095
1096                 for (uint32_t i=0; i < route->n_outputs().n_audio(); ++i) {
1097                         string name;
1098                         if (route->n_outputs().n_audio() == 1) {
1099                                 name = route->name();
1100                         } else {
1101                                 name = string_compose("%1: out-%2", route->name(), i+1);
1102                         }
1103
1104                         if (route == session->master_out()) {
1105                                 TreeModel::iterator iter = master_list->append();
1106                                 TreeModel::Row row = *iter;
1107                                 row[exp_cols.output] = name;
1108                                 row[exp_cols.left] = false;
1109                                 row[exp_cols.right] = false;
1110                                 row[exp_cols.port] = route->output (i);
1111                         } else {
1112                                 TreeModel::iterator iter = track_list->append();
1113                                 TreeModel::Row row = *iter;
1114                                 row[exp_cols.output] = name;
1115                                 row[exp_cols.left] = false;
1116                                 row[exp_cols.right] = false;
1117                                 row[exp_cols.port] = route->output (i);
1118                         }
1119                 }
1120         }
1121 }
1122
1123
1124 bool
1125 ExportDialog::is_filepath_valid(string &filepath)
1126 {
1127         // sanity check file name first
1128
1129         struct stat statbuf;
1130
1131         if (filepath.empty()) {
1132                 string txt = _("Please enter a valid filename.");
1133                 MessageDialog msg (*this, txt, false, MESSAGE_ERROR, BUTTONS_OK, true);
1134                 msg.run();
1135                 return false;
1136         }
1137
1138         // check if file exists already and warn
1139
1140         if (stat (filepath.c_str(), &statbuf) == 0) {
1141                 if (S_ISDIR (statbuf.st_mode)) {
1142                         string txt = _("Please specify a complete filename for the audio file.");
1143                         MessageDialog msg (*this, txt, false, MESSAGE_ERROR, BUTTONS_OK, true);
1144                         msg.run();
1145                         return false;
1146                 }
1147                 else {
1148                         string txt = _("File already exists, do you want to overwrite it?");
1149                         MessageDialog msg (*this, txt, false, MESSAGE_QUESTION, BUTTONS_YES_NO, true);
1150                         if ((ResponseType) msg.run() == Gtk::RESPONSE_NO) {
1151                                 return false;
1152                         }
1153                 }
1154         }
1155
1156         // directory needs to exist and be writable
1157
1158         string dirpath = Glib::path_get_dirname (filepath);
1159         if (::access (dirpath.c_str(), W_OK) != 0) {
1160                 string txt = _("Cannot write file in: ") + dirpath;
1161                 MessageDialog msg (*this, txt, false, MESSAGE_ERROR, BUTTONS_OK, true);
1162                 msg.run();
1163                 return false;
1164         }
1165
1166         return true;
1167 }
1168
1169 void
1170 ExportDialog::initSpec(string &filepath)
1171 {
1172         spec.path = filepath;
1173         spec.progress = 0;
1174         spec.running = true;
1175         spec.stop = false;
1176         spec.port_map.clear();
1177
1178         if (channel_count_combo.get_active_text() == _("mono")) {
1179                 spec.channels = 1;
1180         } else {
1181                 spec.channels = 2;
1182         }
1183
1184         spec.format = 0;
1185
1186         spec.format |= sndfile_header_format_from_string (header_format_combo.get_active_text ());
1187
1188         if ((spec.format & SF_FORMAT_WAV) == 0) {
1189                 /* RIFF/WAV specifies endianess */
1190                 spec.format |= sndfile_endian_format_from_string (endian_format_combo.get_active_text ());
1191         }
1192
1193         spec.format |= sndfile_bitdepth_format_from_string (bitdepth_format_combo.get_active_text ());
1194
1195         string sr_str = sample_rate_combo.get_active_text();
1196         if (sr_str == N_("22.05kHz")) {
1197                 spec.sample_rate = 22050;
1198         } else if (sr_str == _("44.1kHz")) {
1199                 spec.sample_rate = 44100;
1200         } else if (sr_str == _("48kHz")) {
1201                 spec.sample_rate = 48000;
1202         } else if (sr_str == _("88.2kHz")) {
1203                 spec.sample_rate = 88200;
1204         } else if (sr_str == _("96kHz")) {
1205                 spec.sample_rate = 96000;
1206         } else if (sr_str == _("192kHz")) {
1207                 spec.sample_rate = 192000;
1208         } else {
1209                 spec.sample_rate = session->frame_rate();
1210         }
1211
1212         string src_str = src_quality_combo.get_active_text();
1213         if (src_str == _("fastest")) {
1214                 spec.src_quality = SRC_ZERO_ORDER_HOLD;
1215         } else if (src_str == _("linear")) {
1216                 spec.src_quality = SRC_LINEAR;
1217         } else if (src_str == _("better")) {
1218                 spec.src_quality = SRC_SINC_FASTEST;
1219         } else if (src_str == _("intermediate")) {
1220                 spec.src_quality = SRC_SINC_MEDIUM_QUALITY;
1221         } else {
1222                 spec.src_quality = SRC_SINC_BEST_QUALITY;
1223         }
1224
1225         string dither_str = dither_type_combo.get_active_text();
1226         if (dither_str == _("None")) {
1227                 spec.dither_type = GDitherNone;
1228         } else if (dither_str == _("Rectangular")) {
1229                 spec.dither_type = GDitherRect;
1230         } else if (dither_str == _("Triangular")) {
1231                 spec.dither_type = GDitherTri;
1232         } else {
1233                 spec.dither_type = GDitherShaped;
1234         }
1235
1236         write_track_and_master_selection_to_spec();
1237 }
1238
1239
1240 void
1241 ExportDialog::write_track_and_master_selection_to_spec()
1242 {
1243         if(!track_and_master_selection_allowed){
1244                 return;
1245         }
1246
1247         uint32_t chan=0;
1248         Port *last_port = 0;
1249
1250         TreeModel::Children rows = master_selector.get_model()->children();
1251         TreeModel::Children::iterator ri;
1252         TreeModel::Row row;
1253         for (ri = rows.begin(); ri != rows.end(); ++ri) {
1254                 row = *ri;
1255                 Port* port = row[exp_cols.port];
1256
1257                 if (last_port != port) {
1258                         chan = 0;
1259                 }
1260
1261                 if (row[exp_cols.left]) {
1262                         spec.port_map[0].push_back (std::pair<Port*,uint32_t>(port, chan));
1263                 }
1264
1265                 if (spec.channels == 2) {
1266                         if (row[exp_cols.right]) {
1267                                 spec.port_map[1].push_back (std::pair<Port*,uint32_t>(port, chan));
1268                         }
1269                 }
1270         }
1271
1272         chan = 0;
1273         rows = track_selector.get_model()->children();
1274
1275         for (ri = rows.begin(); ri != rows.end(); ++ri) {
1276                 row = *ri;
1277
1278                 Port* port = row[exp_cols.port];
1279
1280                 if (last_port != port) {
1281                         chan = 0;
1282                 }
1283
1284                 if (row[exp_cols.left]) {
1285                         spec.port_map[0].push_back (std::pair<Port*,uint32_t>(port, chan));
1286                 }
1287
1288                 if (spec.channels == 2) {
1289                         if (row[exp_cols.right]) {
1290                                 spec.port_map[1].push_back (std::pair<Port*,uint32_t>(port, chan));
1291                         }
1292
1293                 }
1294
1295                 last_port = port;
1296                 ++chan;
1297         }
1298 }
1299
1300
1301 gint
1302 ExportDialog::window_closed (GdkEventAny *ignored)
1303 {
1304         end_dialog ();
1305         return TRUE;
1306 }
1307
1308 void
1309 ExportDialog::browse ()
1310 {
1311         FileChooserDialog dialog("Export to file", browse_action());
1312         dialog.set_transient_for(*this);
1313         dialog.set_filename (file_entry.get_text());
1314
1315         dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
1316         dialog.add_button(Gtk::Stock::OK, Gtk::RESPONSE_OK);
1317
1318         int result = dialog.run();
1319
1320         if (result == Gtk::RESPONSE_OK) {
1321                 string filename = dialog.get_filename();
1322
1323                 if (filename.length()) {
1324                         file_entry.set_text (filename);
1325                 }
1326         }
1327 }
1328
1329 void
1330 ExportDialog::track_selector_button_click ()
1331 {
1332         if (track_scroll.is_visible ()) {
1333                 track_scroll.hide ();
1334         } else {
1335                 track_scroll.show_all ();
1336         }
1337 }