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 sigc;
  53 using namespace Gtk;
  54
  55 using PBD::internationalize;
  56
  57 static const gchar *sample_rates[] = {
  58         N_("22.05kHz"),
  59         N_("44.1kHz"),
  60         N_("48kHz"),
  61         N_("88.2kHz"),
  62         N_("96kHz"),
  63         N_("192kHz"),
  64         0
  65 };
  66
  67 static const gchar *src_quality[] = {
  68         N_("best"),
  69         N_("fastest"),
  70         N_("linear"),
  71         N_("better"),
  72         N_("intermediate"),
  73         0
  74 };
  75
  76 static const gchar *dither_types[] = {
  77         N_("None"),
  78         N_("Rectangular"),
  79         N_("Shaped Noise"),
  80         N_("Triangular"),
  81         0
  82 };
  83
  84 static const gchar* channel_strings[] = {
  85         N_("stereo"),
  86         N_("mono"),
  87         0
  88 };
  89
  90 static const gchar* cue_file_types[] = {
  91         N_("None"),
  92         N_("CUE"),
  93         N_("TOC"),
  94         0
  95 };
  96
  97 ExportDialog::ExportDialog(PublicEditor& e)
  98         : ArdourDialog ("export dialog"),
  99           editor (e),
 100           format_table (9, 2),
 101           format_frame (_("Format")),
 102           cue_file_label (_("CD Marker File Type"), 1.0, 0.5),
 103           channel_count_label (_("Channels"), 1.0, 0.5),
 104           header_format_label (_("File Type"), 1.0, 0.5),
 105           bitdepth_format_label (_("Sample Format"), 1.0, 0.5),
 106           endian_format_label (_("Sample Endianness"), 1.0, 0.5),
 107           sample_rate_label (_("Sample Rate"), 1.0, 0.5),
 108           src_quality_label (_("Conversion Quality"), 1.0, 0.5),
 109           dither_type_label (_("Dither Type"), 1.0, 0.5),
 110           cuefile_only_checkbox (_("Export CD Marker File Only")),
 111           file_frame (_("Export to File")),
 112           file_browse_button (_("Browse")),
 113           track_selector_button (_("Specific tracks ..."))
 114 {
 115         guint32 n;
 116         guint32 len;
 117         guint32 maxlen;
 118
 119         session = 0;
 120         track_and_master_selection_allowed = true;
 121         channel_count_selection_allowed = true;
 122         export_cd_markers_allowed = true;
 123
 124         set_title (_("ardour: export"));
 125         set_wmclass (_("ardour_export"), "Ardour");
 126         set_name ("ExportWindow");
 127         add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
 128
 129         spec.running = false;
 130
 131         file_entry.set_name ("ExportFileNameEntry");
 132
 133         master_list = ListStore::create (exp_cols);
 134         master_selector.set_model (master_list);
 135
 136         master_selector.set_name ("ExportTrackSelector");
 137         master_selector.set_size_request (-1, 100);
 138         master_selector.append_column(_("Output"), exp_cols.output);
 139         master_selector.append_column_editable(_("Left"), exp_cols.left);
 140         master_selector.append_column_editable(_("Right"), exp_cols.right);
 141         master_selector.get_column(0)->set_min_width(100);
 142
 143         master_selector.get_column(1)->set_min_width(40);
 144         master_selector.get_column(1)->set_sizing(Gtk::TREE_VIEW_COLUMN_AUTOSIZE);
 145         master_selector.get_column(2)->set_min_width(40);
 146         master_selector.get_column(2)->set_sizing(Gtk::TREE_VIEW_COLUMN_AUTOSIZE);
 147         master_selector.get_selection()->set_mode (Gtk::SELECTION_NONE);
 148
 149         track_list = ListStore::create (exp_cols);
 150         track_selector.set_model (track_list);
 151
 152         track_selector.set_name ("ExportTrackSelector");
 153         track_selector.set_size_request (-1, 130);
 154         track_selector.append_column(_("Output"), exp_cols.output);
 155         track_selector.append_column_editable(_("Left"), exp_cols.left);
 156         track_selector.append_column_editable(_("Right"), exp_cols.right);
 157
 158         track_selector.get_column(0)->set_min_width(100);
 159         track_selector.get_column(1)->set_min_width(40);
 160         track_selector.get_column(1)->set_sizing(Gtk::TREE_VIEW_COLUMN_AUTOSIZE);
 161         track_selector.get_column(2)->set_min_width(40);
 162         track_selector.get_column(2)->set_sizing(Gtk::TREE_VIEW_COLUMN_AUTOSIZE);
 163         track_selector.get_selection()->set_mode (Gtk::SELECTION_NONE);
 164
 165         progress_bar.set_name ("ExportProgress");
 166
 167         format_frame.add (format_table);
 168         format_frame.set_name (FRAME_NAME);
 169
 170         track_scroll.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
 171         master_scroll.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
 172
 173         get_vbox()->pack_start (file_frame, false, false);
 174
 175         hpacker.set_spacing (5);
 176         hpacker.set_border_width (5);
 177         hpacker.pack_start (format_frame, false, false);
 178
 179         master_scroll.add (master_selector);
 180         track_scroll.add (track_selector);
 181
 182         master_scroll.set_size_request (220, 100);
 183         track_scroll.set_size_request (220, 100);
 184
 185         /* we may hide some of these later */
 186         track_vpacker.pack_start (master_scroll);
 187         track_vpacker.pack_start (track_scroll);
 188         track_vpacker.pack_start (track_selector_button, Gtk::PACK_EXPAND_PADDING);
 189
 190         hpacker.pack_start (track_vpacker);
 191
 192         get_vbox()->pack_start (hpacker);
 193
 194         track_selector_button.set_name ("EditorGTKButton");
 195         track_selector_button.signal_clicked().connect (mem_fun(*this, &ExportDialog::track_selector_button_click));
 196
 197         get_vbox()->pack_start (progress_bar, false, false);
 198
 199         Gtkmm2ext::set_size_request_to_display_given_text (file_entry, X_("Kg/quite/a/reasonable/size/for/files/i/think"), 5, 8);
 200
 201         file_hbox.set_spacing (5);
 202         file_hbox.set_border_width (5);
 203         file_hbox.pack_start (file_entry, true, true);
 204         file_hbox.pack_start (file_browse_button, false, false);
 205
 206         file_frame.add (file_hbox);
 207         file_frame.set_border_width (5);
 208         file_frame.set_name (FRAME_NAME);
 209
 210         /* pop_strings needs to be created on the stack because set_popdown_strings()
 211            takes a reference.
 212         */
 213
 214         vector<string> pop_strings = internationalize(sample_rates);
 215         Gtkmm2ext::set_popdown_strings (sample_rate_combo, pop_strings);
 216         sample_rate_combo.set_active_text (pop_strings.front());
 217         pop_strings = internationalize(src_quality);
 218         Gtkmm2ext::set_popdown_strings (src_quality_combo, pop_strings);
 219         src_quality_combo.set_active_text (pop_strings.front());
 220         pop_strings = internationalize(dither_types);
 221         Gtkmm2ext::set_popdown_strings (dither_type_combo, pop_strings);
 222         dither_type_combo.set_active_text (pop_strings.front());
 223         pop_strings = internationalize(channel_strings);
 224         Gtkmm2ext::set_popdown_strings (channel_count_combo, pop_strings);
 225         channel_count_combo.set_active_text (pop_strings.front());
 226         pop_strings = internationalize((const char **) sndfile_header_formats_strings);
 227         Gtkmm2ext::set_popdown_strings (header_format_combo, pop_strings);
 228         header_format_combo.set_active_text (pop_strings.front());
 229         pop_strings = internationalize((const char **) sndfile_bitdepth_formats_strings);
 230         Gtkmm2ext::set_popdown_strings (bitdepth_format_combo, pop_strings);
 231         bitdepth_format_combo.set_active_text (pop_strings.front());
 232         pop_strings = internationalize((const char **) sndfile_endian_formats_strings);
 233         Gtkmm2ext::set_popdown_strings (endian_format_combo, pop_strings);
 234         endian_format_combo.set_active_text (pop_strings.front());
 235         pop_strings = internationalize(cue_file_types);
 236         Gtkmm2ext::set_popdown_strings (cue_file_combo, pop_strings);
 237         cue_file_combo.set_active_text (pop_strings.front());
 238
 239         /* this will re-sensitized as soon as a non RIFF/WAV
 240            header format is chosen.
 241         */
 242
 243         endian_format_combo.set_sensitive (false);
 244
 245         /* determine longest strings at runtime */
 246
 247         maxlen = 0;
 248         const char *longest = X_("gl"); /* translators: one ascender, one descender */
 249         string longest_str;
 250
 251         for (n = 0; n < SNDFILE_HEADER_FORMATS; ++n) {
 252                 if ((len = strlen (sndfile_header_formats_strings[n])) > maxlen) {
 253                         maxlen = len;
 254                         longest = sndfile_header_formats_strings[n];
 255                 }
 256         }
 257
 258         for (n = 0; n < SNDFILE_BITDEPTH_FORMATS; ++n) {
 259                 if ((len = strlen (sndfile_bitdepth_formats_strings[n])) > maxlen) {
 260                         maxlen = len;
 261                         longest = sndfile_bitdepth_formats_strings[n];
 262                 }
 263         }
 264
 265         for (n = 0; n < SNDFILE_ENDIAN_FORMATS; ++n) {
 266                 if ((len = strlen (sndfile_endian_formats_strings[n])) > maxlen) {
 267                         maxlen = len;
 268                         longest = sndfile_endian_formats_strings[n];
 269                 }
 270         }
 271
 272         longest_str = longest;
 273
 274         /* force ascender + descender */
 275
 276         longest_str[0] = 'g';
 277         longest_str[1] = 'l';
 278
 279         //Gtkmm2ext::set_size_request_to_display_given_text (header_format_combo, longest_str.c_str(), 5+FUDGE, 5);
 280
 281         // TRANSLATORS: "slereg" is "stereo" with ascender and descender substituted
 282         //Gtkmm2ext::set_size_request_to_display_given_text (channel_count_combo, _("slereg"), 5+FUDGE, 5);
 283
 284 /*      header_format_combo.set_focus_on_click (true);
 285         bitdepth_format_combo.set_focus_on_click (true);
 286         endian_format_combo.set_focus_on_click (true);
 287         channel_count_combo.set_focus_on_click (true);
 288         src_quality_combo.set_focus_on_click (true);
 289         dither_type_combo.set_focus_on_click (true);
 290         sample_rate_combo.set_focus_on_click (true);
 291         cue_file_combo.set_focus_on_click (true);
 292 */
 293         dither_type_label.set_name ("ExportFormatLabel");
 294         sample_rate_label.set_name ("ExportFormatLabel");
 295         src_quality_label.set_name ("ExportFormatLabel");
 296         channel_count_label.set_name ("ExportFormatLabel");
 297         header_format_label.set_name ("ExportFormatLabel");
 298         bitdepth_format_label.set_name ("ExportFormatLabel");
 299         endian_format_label.set_name ("ExportFormatLabel");
 300         cue_file_label.set_name ("ExportFormatLabel");
 301
 302         header_format_combo.set_name ("ExportFormatDisplay");
 303         bitdepth_format_combo.set_name ("ExportFormatDisplay");
 304         endian_format_combo.set_name ("ExportFormatDisplay");
 305         channel_count_combo.set_name ("ExportFormatDisplay");
 306         dither_type_combo.set_name ("ExportFormatDisplay");
 307         src_quality_combo.set_name ("ExportFormatDisplay");
 308         sample_rate_combo.set_name ("ExportFormatDisplay");
 309         cue_file_combo.set_name ("ExportFormatDisplay");
 310
 311         cuefile_only_checkbox.set_name ("ExportCheckbox");
 312
 313         format_table.set_homogeneous (false);
 314         format_table.set_border_width (5);
 315         format_table.set_col_spacings (5);
 316         format_table.set_row_spacings (5);
 317
 318         format_table.attach (channel_count_label, 0, 1, 0, 1);
 319         format_table.attach (channel_count_combo, 1, 2, 0, 1);
 320
 321         format_table.attach (header_format_label, 0, 1, 1, 2);
 322         format_table.attach (header_format_combo, 1, 2, 1, 2);
 323
 324         format_table.attach (bitdepth_format_label, 0, 1, 2, 3);
 325         format_table.attach (bitdepth_format_combo, 1, 2, 2, 3);
 326
 327         format_table.attach (endian_format_label, 0, 1, 3, 4);
 328         format_table.attach (endian_format_combo, 1, 2, 3, 4);
 329
 330         format_table.attach (sample_rate_label, 0, 1, 4, 5);
 331         format_table.attach (sample_rate_combo, 1, 2, 4, 5);
 332
 333         format_table.attach (src_quality_label, 0, 1, 5, 6);
 334         format_table.attach (src_quality_combo, 1, 2, 5, 6);
 335
 336         format_table.attach (dither_type_label, 0, 1, 6, 7);
 337         format_table.attach (dither_type_combo, 1, 2, 6, 7);
 338
 339         format_table.attach (cue_file_label, 0, 1, 7, 8);
 340         format_table.attach (cue_file_combo, 1, 2, 7, 8);
 341         format_table.attach (cuefile_only_checkbox, 0, 2, 8, 9);
 342
 343         file_entry.set_name ("ExportFileDisplay");
 344
 345         signal_delete_event().connect (mem_fun(*this, &ExportDialog::window_closed));
 346
 347         cancel_button = add_button (Stock::CANCEL, RESPONSE_CANCEL);
 348         cancel_button->signal_clicked().connect (mem_fun(*this, &ExportDialog::end_dialog));
 349         ok_button = add_button (_("Export"), RESPONSE_ACCEPT);
 350         ok_button->signal_clicked().connect (mem_fun(*this, &ExportDialog::do_export));
 351
 352         file_browse_button.set_name ("EditorGTKButton");
 353         file_browse_button.signal_clicked().connect (mem_fun(*this, &ExportDialog::browse));
 354
 355         channel_count_combo.signal_changed().connect (mem_fun(*this, &ExportDialog::channels_chosen));
 356         bitdepth_format_combo.signal_changed().connect (mem_fun(*this, &ExportDialog::bitdepth_chosen));
 357         header_format_combo.signal_changed().connect (mem_fun(*this, &ExportDialog::header_chosen));
 358         sample_rate_combo.signal_changed().connect (mem_fun(*this, &ExportDialog::sample_rate_chosen));
 359         cue_file_combo.signal_changed().connect (mem_fun(*this, &ExportDialog::cue_file_type_chosen));
 360 }
 361
 362 ExportDialog::~ExportDialog()
 363 {
 364 }
 365
 366 void
 367 ExportDialog::do_not_allow_track_and_master_selection()
 368 {
 369         track_and_master_selection_allowed = false;
 370         track_vpacker.set_no_show_all();
 371 }
 372
 373 void
 374 ExportDialog::do_not_allow_channel_count_selection()
 375 {
 376         channel_count_selection_allowed = false;
 377         channel_count_combo.set_no_show_all();
 378         channel_count_label.set_no_show_all();
 379 }
 380
 381 void
 382 ExportDialog::do_not_allow_export_cd_markers()
 383 {
 384         export_cd_markers_allowed = false;
 385         cue_file_label.set_no_show_all();
 386         cue_file_combo.set_no_show_all();
 387         cuefile_only_checkbox.set_no_show_all();
 388 }
 389
 390 void
 391 ExportDialog::connect_to_session (Session *s)
 392 {
 393         session = s;
 394         session->going_away.connect (mem_fun(*this, &Window::hide_all));
 395
 396         switch (session->frame_rate()) {
 397         case 22050:
 398                 sample_rate_combo.set_active_text (N_("22.05kHz"));
 399                 break;
 400         case 44100:
 401                 sample_rate_combo.set_active_text (N_("44.1kHz"));
 402                 break;
 403         case 48000:
 404                 sample_rate_combo.set_active_text (N_("48kHz"));
 405                 break;
 406         case 88200:
 407                 sample_rate_combo.set_active_text (N_("88.2kHz"));
 408                 break;
 409         case 96000:
 410                 sample_rate_combo.set_active_text (N_("96kHz"));
 411                 break;
 412         case 192000:
 413                 sample_rate_combo.set_active_text (N_("192kHz"));
 414                 break;
 415         default:
 416                 sample_rate_combo.set_active_text (N_("44.1kHz"));
 417                 break;
 418         }
 419
 420         src_quality_combo.set_sensitive (false);
 421
 422         set_state();
 423 }
 424
 425 void
 426 ExportDialog::set_state()
 427 {
 428         XMLNode* node = session->instant_xml(X_("ExportDialog"), session->path());
 429         XMLProperty* prop;
 430
 431         if (node) {
 432
 433                 if ((prop = node->property (X_("sample_rate"))) != 0) {
 434                         sample_rate_combo.set_active_text(prop->value());
 435                 }
 436                 if ((prop = node->property (X_("src_quality"))) != 0) {
 437                         src_quality_combo.set_active_text(prop->value());
 438                 }
 439                 if ((prop = node->property (X_("dither_type"))) != 0) {
 440                         dither_type_combo.set_active_text(prop->value());
 441                 }
 442                 if ((prop = node->property (X_("channel_count"))) != 0) {
 443                         channel_count_combo.set_active_text(prop->value());
 444                 }
 445                 if ((prop = node->property (X_("header_format"))) != 0) {
 446                         header_format_combo.set_active_text(prop->value());
 447                 }
 448                 if ((prop = node->property (X_("bitdepth_format"))) != 0) {
 449                         bitdepth_format_combo.set_active_text(prop->value());
 450                 }
 451                 if ((prop = node->property (X_("endian_format"))) != 0) {
 452                         endian_format_combo.set_active_text(prop->value());
 453                 }
 454                 if ((prop = node->property (X_("filename"))) != 0) {
 455                         file_entry.set_text(prop->value());
 456                 }
 457                 if ((prop = node->property (X_("cue_file_type"))) != 0) {
 458                         cue_file_combo.set_active_text(prop->value());
 459                 }
 460         }
 461
 462         header_chosen ();
 463         bitdepth_chosen();
 464         channels_chosen();
 465         sample_rate_chosen();
 466
 467         if (session->master_out()) {
 468                 track_scroll.hide ();
 469         } else {
 470                 master_scroll.hide ();
 471                 track_selector_button.hide ();
 472         }
 473
 474         if (!node) {
 475                 return;
 476         }
 477
 478         if (session->master_out()) {
 479                 XMLNode* master = find_named_node(*node, (X_("Master")));
 480                 int nchns;
 481
 482                 if (!master) {
 483
 484                         /* default is to use all */
 485                         if (channel_count_combo.get_active_text() == _("mono")) {
 486                                 nchns = 1;
 487                         } else {
 488                                 nchns = 2;
 489                         }
 490
 491                         TreeModel::Children rows = master_selector.get_model()->children();
 492                         for (uint32_t r = 0; r < session->master_out()->n_outputs(); ++r) {
 493                                 if (nchns == 2) {
 494                                         if (r % 2) {
 495                                                 rows[r][exp_cols.right] = true;
 496                                         } else {
 497                                                 rows[r][exp_cols.left] = true;
 498                                         }
 499                                 } else {
 500                                         rows[r][exp_cols.left] = true;
 501                                 }
 502                         }
 503
 504                 } else {
 505                         /* XXX use XML state */
 506                 }
 507         }
 508
 509         XMLNode* tracks = find_named_node(*node, (X_("Tracks")));
 510         if (!tracks) {
 511                 return;
 512         }
 513
 514         XMLNodeList track_list = tracks->children(X_("Track"));
 515         TreeModel::Children rows = track_selector.get_model()->children();
 516         TreeModel::Children::iterator ri = rows.begin();
 517         TreeModel::Row row;
 518
 519         for (XMLNodeIterator it = track_list.begin(); it != track_list.end(); ++it, ++ri) {
 520                 if (ri == rows.end()){
 521                         break;
 522                 }
 523
 524                 XMLNode* track = *it;
 525                 row = *ri;
 526
 527                 if ((prop = track->property(X_("channel1"))) != 0) {
 528                         if (prop->value() == X_("on")) {
 529                                 row[exp_cols.left] = true;
 530                         } else {
 531                                 row[exp_cols.left] = false;
 532                         }
 533                 }
 534
 535                 if ((prop = track->property(X_("channel2"))) != 0) {
 536                         if (prop->value() == X_("on")) {
 537                                 row[exp_cols.right] = true;
 538                         } else {
 539                                 row[exp_cols.right] = false;
 540                         }
 541                 }
 542         }
 543 }
 544
 545 void
 546 ExportDialog::save_state()
 547 {
 548         if (!session) {
 549                 return;
 550         }
 551
 552         XMLNode* node = new XMLNode(X_("ExportDialog"));
 553
 554         node->add_property(X_("sample_rate"), sample_rate_combo.get_active_text());
 555         node->add_property(X_("src_quality"), src_quality_combo.get_active_text());
 556         node->add_property(X_("dither_type"), dither_type_combo.get_active_text());
 557         node->add_property(X_("channel_count"), channel_count_combo.get_active_text());
 558         node->add_property(X_("header_format"), header_format_combo.get_active_text());
 559         node->add_property(X_("bitdepth_format"), bitdepth_format_combo.get_active_text());
 560         node->add_property(X_("endian_format"), endian_format_combo.get_active_text());
 561         node->add_property(X_("filename"), file_entry.get_text());
 562         node->add_property(X_("cue_file_type"), cue_file_combo.get_active_text());
 563
 564         XMLNode* tracks = new XMLNode(X_("Tracks"));
 565
 566         TreeModel::Children rows = track_selector.get_model()->children();
 567         TreeModel::Row row;
 568         for (TreeModel::Children::iterator ri = rows.begin(); ri != rows.end(); ++ri) {
 569                 XMLNode* track = new XMLNode(X_("Track"));
 570
 571                 row = *ri;
 572                 track->add_property(X_("channel1"), row[exp_cols.left] ? X_("on") : X_("off"));
 573                 track->add_property(X_("channel1"), row[exp_cols.right] ? X_("on") : X_("off"));
 574
 575                 tracks->add_child_nocopy(*track);
 576         }
 577         node->add_child_nocopy(*tracks);
 578
 579         session->add_instant_xml(*node, session->path());
 580 }
 581
 582 void
 583 ExportDialog::set_range (jack_nframes_t start, jack_nframes_t end)
 584 {
 585         spec.start_frame = start;
 586         spec.end_frame = end;
 587 }
 588
 589 gint
 590 ExportDialog::progress_timeout ()
 591 {
 592         progress_bar.set_fraction (spec.progress);
 593         return TRUE;
 594 }
 595
 596 void
 597 frames_to_cd_frames_string (char* buf, jack_nframes_t when, jack_nframes_t fr)
 598 {
 599
 600   long unsigned int remainder;
 601   int mins, secs, frames;
 602
 603         mins = when / (60 * fr);
 604         remainder = when - (mins * 60 * fr);
 605         secs = remainder / fr;
 606         remainder -= secs * fr;
 607         frames = remainder / (fr / 75);
 608         sprintf (buf, " %02d:%02d:%02d", mins, secs, frames);
 609
 610 }
 611
 612 struct LocationSortByStart {
 613     bool operator() (Location *a, Location *b) {
 614             return a->start() < b->start();
 615     }
 616 };
 617
 618 void
 619 ExportDialog::export_toc_file (Locations::LocationList& locations, const string& path)
 620 {
 621         if(!export_cd_markers_allowed){
 622                 return;
 623         }
 624
 625     string filepath = path + ".toc";
 626         ofstream out (filepath.c_str());
 627         long unsigned int last_end_time = spec.start_frame, last_start_time = spec.start_frame;
 628         int numtracks = 0;
 629         gchar buf[18];
 630
 631         if (!out) {
 632                 error << string_compose(_("Editor: cannot open \"%1\" as export file for CD toc file"), filepath) << endmsg;
 633                 return;
 634         }
 635         out << "CD_DA" << endl;
 636         out << "CD_TEXT {" << endl << "  LANGUAGE_MAP {" << endl << "    0 : EN" << endl << "  }" << endl;
 637         out << "  LANGUAGE 0 {" << endl << "    TITLE \"" << session->name() << "\"" << endl << "  }" << endl << "}" << endl;
 638
 639         Locations::LocationList::iterator i;
 640         Locations::LocationList temp;
 641
 642         for (i = locations.begin(); i != locations.end(); ++i) {
 643           if ((*i)->start() >= spec.start_frame && (*i)->end() <= spec.end_frame && (*i)->is_cd_marker() && !(*i)->is_end()) {
 644             temp.push_back (*i);
 645             if (!(*i)->is_mark()) {
 646               numtracks ++;
 647             }
 648           }
 649         }
 650
 651         if (numtracks == 0 ) {
 652                     /* the user supplied no track markers.
 653                        we now treat the session as one track.*/
 654
 655                     out << endl << "TRACK AUDIO" << endl;
 656
 657                     out << "COPY" << endl;
 658
 659                     out << "NO PRE_EMPHASIS" << endl;
 660
 661                     /* XXX add session properties for catalog etc.
 662                        (so far only the session name is used) */
 663
 664                     out << "CD_TEXT {" << endl << "  LANGUAGE 0 {" << endl << "     TITLE \"" << session->name() << "\"" << endl;
 665                     out << "  }" << endl << "}" << endl;
 666
 667                     out << "FILE \"" << path << "\" ";
 668                     out << "00:00:00 " ;
 669                     frames_to_cd_frames_string (buf, spec.end_frame - spec.start_frame, session->frame_rate());
 670                     out << buf << endl;
 671                     out << "START 00:00:00" << endl;
 672
 673                     last_start_time = spec.start_frame;
 674                     last_end_time = spec.end_frame;
 675         }
 676
 677         if (temp.size()) {
 678                 LocationSortByStart cmp;
 679                 temp.sort (cmp);
 680
 681                 for (i = temp.begin(); i != temp.end(); ++i) {
 682
 683                       if (!(*i)->is_mark()) {
 684                         /*this is a track */
 685                         out << endl << "TRACK AUDIO" << endl;
 686
 687                         if ((*i)->cd_info.find("scms") != (*i)->cd_info.end())  {
 688                           out << "NO ";
 689                         }
 690                         out << "COPY" << endl;
 691
 692                         if ((*i)->cd_info.find("preemph") != (*i)->cd_info.end())  {
 693                           out << "PRE_EMPHASIS" << endl;
 694                         } else {
 695                           out << "NO PRE_EMPHASIS" << endl;
 696                         }
 697
 698                         if ((*i)->cd_info.find("isrc") != (*i)->cd_info.end())  {
 699                           out << "ISRC \"" << (*i)->cd_info["isrc"] << "\"" << endl;
 700                         }
 701
 702                         out << "CD_TEXT {" << endl << "  LANGUAGE 0 {" << endl << "     TITLE \"" << (*i)->name() << "\"" << endl;
 703                         if ((*i)->cd_info.find("performer") != (*i)->cd_info.end()) {
 704                           out << "     PERFORMER \"" << (*i)->cd_info["performer"]  << "\"" << endl;
 705                         }
 706                         if ((*i)->cd_info.find("string_composer") != (*i)->cd_info.end()) {
 707                           out  << "     COMPOSER \"" << (*i)->cd_info["string_composer"] << "\"" << endl;
 708                         }
 709
 710                         if ((*i)->cd_info.find("isrc") != (*i)->cd_info.end()) {
 711                           out  << "     ISRC \"";
 712                           out << (*i)->cd_info["isrc"].substr(0,2) << "-";
 713                           out << (*i)->cd_info["isrc"].substr(2,3) << "-";
 714                           out << (*i)->cd_info["isrc"].substr(5,2) << "-";
 715                           out << (*i)->cd_info["isrc"].substr(7,5) << "\"" << endl;
 716                         }
 717
 718                         out << "  }" << endl << "}" << endl;
 719
 720                         frames_to_cd_frames_string (buf, last_end_time - spec.start_frame, session->frame_rate());
 721                         out << "FILE \"" << path << "\" " << buf;
 722
 723                         frames_to_cd_frames_string (buf, (*i)->end() - last_end_time, session->frame_rate());
 724                         out << buf << endl;
 725
 726                         frames_to_cd_frames_string (buf, (*i)->start() - last_end_time, session->frame_rate());
 727                         out << "START" << buf << endl;
 728
 729                         last_start_time = (*i)->start();
 730                         last_end_time = (*i)->end();
 731
 732
 733                       } else  if ((*i)->start() < last_end_time) {
 734                         /* this is an index within a track */
 735
 736                         frames_to_cd_frames_string (buf, (*i)->start() - last_start_time, session->frame_rate());
 737                         out << "INDEX" << buf << endl;
 738                       }
 739                 }
 740         }
 741
 742 }
 743
 744 void
 745 ExportDialog::export_cue_file (Locations::LocationList& locations, const string& path)
 746 {
 747         if(!export_cd_markers_allowed){
 748                 return;
 749         }
 750
 751     string filepath = path + ".cue";
 752         ofstream out (filepath.c_str());
 753         gchar buf[18];
 754         long unsigned int last_track_end = spec.start_frame;
 755         int numtracks = 0, tracknum = 0, indexnum = 0;
 756
 757         if (!out) {
 758                 error << string_compose(_("Editor: cannot open \"%1\" as export file for CD cue file"), filepath) << endmsg;
 759                 return;
 760         }
 761
 762         Locations::LocationList::iterator i;
 763         Locations::LocationList temp;
 764
 765         for (i = locations.begin(); i != locations.end(); ++i) {
 766                 if ((*i)->start() >= spec.start_frame && (*i)->end() <= spec.end_frame && (*i)->is_cd_marker() && !(*i)->is_end()) {
 767                         temp.push_back (*i);
 768                         if (!(*i)->is_mark()) {
 769                                 numtracks++;
 770                         }
 771                 }
 772         }
 773
 774         out << "REM Cue file generated by Ardour" << endl;
 775         out << "TITLE \"" << session->name() << "\"" << endl;
 776
 777         if ((header_format_combo.get_active_text() == N_("WAV"))) {
 778                   out << "FILE " << path  << " WAVE" << endl;
 779         } else {
 780                   out << "FILE " << path  << ' ' << (header_format_combo.get_active_text()) << endl;
 781         }
 782
 783         if (numtracks == 0) {
 784                     /* the user has supplied no track markers.
 785                        the entire export is treated as one track.
 786                     */
 787
 788                   numtracks++;
 789                   tracknum++;
 790                   indexnum = 0;
 791                   out << endl << "TRACK " << tracknum << " AUDIO" << endl;
 792                   out << "FLAGS " ;
 793
 794                   out << "DCP " << endl;
 795
 796                   /* use the session name*/
 797
 798                   if (session->name() != "") {
 799                     out << "TITLE \"" << session->name() << "\"" << endl;
 800                   }
 801
 802                   /* no pregap in this case */
 803
 804                   out << "INDEX 00 00:00:00" << endl;
 805                   indexnum++;
 806                   out << "INDEX 01 00:00:00" << endl;
 807                   indexnum++;
 808                   last_track_end = spec.end_frame;
 809         }
 810
 811         if (temp.size()) {
 812                 LocationSortByStart cmp;
 813                 temp.sort (cmp);
 814
 815                 for ( i = temp.begin(); i != temp.end(); ++i) {
 816
 817                     if (!(*i)->is_mark() && ((*i)->start() >= last_track_end)) {
 818                       /* this is a track and it doesn't start inside another one*/
 819
 820                       tracknum++;
 821                       indexnum = 0;
 822                       out << endl << "TRACK " << tracknum << " AUDIO" << endl;
 823                       out << "FLAGS " ;
 824
 825                       if ((*i)->cd_info.find("scms") != (*i)->cd_info.end())  {
 826                         out << "SCMS ";
 827                       } else {
 828                         out << "DCP ";
 829                       }
 830
 831                       if ((*i)->cd_info.find("preemph") != (*i)->cd_info.end())  {
 832                         out << "PRE";
 833                       }
 834                       out << endl;
 835
 836                       if ((*i)->cd_info.find("isrc") != (*i)->cd_info.end())  {
 837                         out << "ISRC " << (*i)->cd_info["isrc"] << endl;
 838
 839                       }
 840                       if ((*i)->name() != "") {
 841                         out << "TITLE \"" << (*i)->name() << "\"" << endl;
 842                       }
 843
 844                       if ((*i)->cd_info.find("performer") != (*i)->cd_info.end()) {
 845                         out << "PERFORMER \"" <<  (*i)->cd_info["performer"] << "\"" << endl;
 846                       }
 847
 848                       if ((*i)->cd_info.find("string_composer") != (*i)->cd_info.end()) {
 849                         out << "SONGWRITER \"" << (*i)->cd_info["string_composer"]  << "\"" << endl;
 850                       }
 851                         snprintf (buf, sizeof(buf), "INDEX %02d", indexnum);
 852                         out << buf;
 853                         frames_to_cd_frames_string (buf, last_track_end - spec.start_frame, session->frame_rate());
 854                         out << buf << endl;
 855                         indexnum++;
 856                         last_track_end = (*i)->end();
 857                     }
 858                     if ((tracknum > 0) && ((*i)->start() < last_track_end)) {
 859                       /*this is an index and it lies within a track*/
 860                       snprintf (buf, sizeof(buf), "INDEX %02d", indexnum);
 861                       out << buf;
 862                       frames_to_cd_frames_string (buf,(*i)->start() - spec.start_frame, session->frame_rate());
 863                       out << buf << endl;
 864                       indexnum++;
 865                     }
 866                 }
 867         }
 868
 869 }
 870
 871 void
 872 ExportDialog::do_export_cd_markers (const string& path,const string& cuefile_type)
 873 {
 874         if (cuefile_type == "TOC") {
 875                 session->locations()->apply (*this, &ExportDialog::export_toc_file, path);
 876         } else {
 877                 session->locations()->apply (*this, &ExportDialog::export_cue_file, path);
 878         }
 879 }
 880
 881
 882 void
 883 ExportDialog::do_export ()
 884 {
 885         string filepath = file_entry.get_text();
 886
 887         if(!is_filepath_valid(filepath)){
 888                 return;
 889         }
 890
 891         if (export_cd_markers_allowed) {
 892                 if (cue_file_combo.get_active_text () != _("None")) {
 893                         do_export_cd_markers (file_entry.get_text(), cue_file_combo.get_active_text ());
 894                 }
 895
 896                 if (cuefile_only_checkbox.get_active()) {
 897                         end_dialog ();
 898                         return;
 899                 }
 900         }
 901
 902         ok_button->set_sensitive(false);
 903         save_state();
 904
 905         set_modal (true);
 906
 907         // read user input into spec
 908         initSpec(filepath);
 909
 910         progress_connection = Glib::signal_timeout().connect (mem_fun(*this, &ExportDialog::progress_timeout), 100);
 911         cancel_label.set_text (_("Stop Export"));
 912
 913         export_audio_data();
 914
 915         progress_connection.disconnect ();
 916         end_dialog ();
 917 }
 918
 919
 920 void
 921 ExportDialog::end_dialog ()
 922 {
 923
 924         if (spec.running) {
 925                 spec.stop = true;
 926
 927                 while (spec.running) {
 928                         if (gtk_events_pending()) {
 929                                 gtk_main_iteration ();
 930                         } else {
 931                                 usleep (10000);
 932                         }
 933                 }
 934         }
 935
 936         session->engine().freewheel (false);
 937
 938         hide_all ();
 939
 940         set_modal (false);
 941         ok_button->set_sensitive(true);
 942 }
 943
 944 void
 945 ExportDialog::start_export ()
 946 {
 947         if (session == 0) {
 948                 return;
 949         }
 950
 951         /* If the filename hasn't been set before, use the
 952            directory above the current session as a default
 953            location for the export.
 954         */
 955
 956         if (file_entry.get_text().length() == 0) {
 957                 string dir = session->path();
 958                 string::size_type last_slash;
 959
 960                 if ((last_slash = dir.find_last_of ('/')) != string::npos) {
 961                         dir = dir.substr (0, last_slash+1);
 962                 }
 963
 964                 dir = dir + "export.wav";
 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         jack_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         Session::RouteList routes = session->get_routes ();
1085
1086         for (Session::RouteList::iterator ri = routes.begin(); ri != routes.end(); ++ri) {
1087
1088                 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 }