gtk2_ardour/editor_regions.cc

   1 /*
   2     Copyright (C) 2000-2005 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 #include <cstdlib>
  21 #include <cmath>
  22 #include <algorithm>
  23 #include <string>
  24 #include <sstream>
  25
  26 #include "pbd/basename.h"
  27 #include "pbd/enumwriter.h"
  28
  29 #include "ardour/audioregion.h"
  30 #include "ardour/audiofilesource.h"
  31 #include "ardour/region_factory.h"
  32 #include "ardour/session.h"
  33 #include "ardour/session_playlists.h"
  34 #include "ardour/silentfilesource.h"
  35 #include "ardour/profile.h"
  36
  37 #include "editor.h"
  38 #include "editing.h"
  39 #include "keyboard.h"
  40 #include "ardour_ui.h"
  41 #include "gui_thread.h"
  42 #include "actions.h"
  43 #include "region_view.h"
  44 #include "utils.h"
  45 #include "editor_regions.h"
  46 #include "editor_drag.h"
  47
  48 #include "i18n.h"
  49
  50 using namespace std;
  51 using namespace ARDOUR;
  52 using namespace PBD;
  53 using namespace Gtk;
  54 using namespace Glib;
  55 using namespace Editing;
  56 using Gtkmm2ext::Keyboard;
  57
  58 EditorRegions::EditorRegions (Editor* e)
  59         : EditorComponent (e)
  60         , _menu (0)
  61         , _show_automatic_regions (true)
  62         , _sort_type ((Editing::RegionListSortType) 0)
  63         , _no_redisplay (false)
  64         , ignore_region_list_selection_change (false)
  65         , ignore_selected_region_change (false)
  66         , expanded (false)
  67 {
  68         _display.set_size_request (100, -1);
  69         _display.set_name ("RegionListDisplay");
  70         _display.set_rules_hint (true);
  71         /* Try to prevent single mouse presses from initiating edits.
  72            This relies on a hack in gtktreeview.c:gtk_treeview_button_press()
  73         */
  74         _display.set_data ("mouse-edits-require-mod1", (gpointer) 0x1);
  75
  76         _model = TreeStore::create (_columns);
  77         _model->set_sort_func (0, sigc::mem_fun (*this, &EditorRegions::sorter));
  78         _model->set_sort_column (0, SORT_ASCENDING);
  79
  80         _display.set_model (_model);
  81         _display.append_column (_("Regions"), _columns.name);
  82         _display.append_column (_("Position"), _columns.position);
  83         _display.append_column (_("End"), _columns.end);
  84         _display.append_column (_("Length"), _columns.length);
  85         _display.append_column (_("Sync"), _columns.sync);
  86         _display.append_column (_("Fade In"), _columns.fadein);
  87         _display.append_column (_("Fade Out"), _columns.fadeout);
  88         _display.append_column (_("L"), _columns.locked);
  89         _display.append_column (_("G"), _columns.glued);
  90         _display.append_column (_("M"), _columns.muted);
  91         _display.append_column (_("O"), _columns.opaque);
  92         _display.append_column (_("Used"), _columns.used);
  93         _display.append_column (_("Path"), _columns.path);
  94         _display.set_headers_visible (true);
  95         //_display.set_grid_lines (TREE_VIEW_GRID_LINES_BOTH);
  96
  97         CellRendererText* region_name_cell = dynamic_cast<CellRendererText*>(_display.get_column_cell_renderer (0));
  98         region_name_cell->property_editable() = true;
  99         region_name_cell->signal_edited().connect (sigc::mem_fun (*this, &EditorRegions::name_edit));
 100
 101         _display.get_selection()->set_select_function (sigc::mem_fun (*this, &EditorRegions::selection_filter));
 102
 103         TreeViewColumn* tv_col = _display.get_column(0);
 104         CellRendererText* renderer = dynamic_cast<CellRendererText*>(_display.get_column_cell_renderer (0));
 105         tv_col->add_attribute(renderer->property_text(), _columns.name);
 106         tv_col->add_attribute(renderer->property_foreground_gdk(), _columns.color_);
 107
 108         CellRendererToggle* locked_cell = dynamic_cast<CellRendererToggle*> (_display.get_column_cell_renderer (7));
 109         locked_cell->property_activatable() = true;
 110         locked_cell->signal_toggled().connect (sigc::mem_fun (*this, &EditorRegions::locked_changed));
 111         TreeViewColumn* locked_col = _display.get_column (7);
 112         locked_col->add_attribute (locked_cell->property_visible(), _columns.property_toggles_visible);
 113
 114         CellRendererToggle* glued_cell = dynamic_cast<CellRendererToggle*> (_display.get_column_cell_renderer (8));
 115         glued_cell->property_activatable() = true;
 116         glued_cell->signal_toggled().connect (sigc::mem_fun (*this, &EditorRegions::glued_changed));
 117         TreeViewColumn* glued_col = _display.get_column (8);
 118         glued_col->add_attribute (glued_cell->property_visible(), _columns.property_toggles_visible);
 119
 120         CellRendererToggle* muted_cell = dynamic_cast<CellRendererToggle*> (_display.get_column_cell_renderer (9));
 121         muted_cell->property_activatable() = true;
 122         muted_cell->signal_toggled().connect (sigc::mem_fun (*this, &EditorRegions::muted_changed));
 123         TreeViewColumn* muted_col = _display.get_column (9);
 124         muted_col->add_attribute (muted_cell->property_visible(), _columns.property_toggles_visible);
 125
 126         CellRendererToggle* opaque_cell = dynamic_cast<CellRendererToggle*> (_display.get_column_cell_renderer (10));
 127         opaque_cell->property_activatable() = true;
 128         opaque_cell->signal_toggled().connect (sigc::mem_fun (*this, &EditorRegions::opaque_changed));
 129         TreeViewColumn* opaque_col = _display.get_column (10);
 130         opaque_col->add_attribute (opaque_cell->property_visible(), _columns.property_toggles_visible);
 131
 132         _display.get_selection()->set_mode (SELECTION_MULTIPLE);
 133         _display.add_object_drag (_columns.region.index(), "regions");
 134
 135         /* setup DnD handling */
 136
 137         list<TargetEntry> region_list_target_table;
 138
 139         region_list_target_table.push_back (TargetEntry ("text/plain"));
 140         region_list_target_table.push_back (TargetEntry ("text/uri-list"));
 141         region_list_target_table.push_back (TargetEntry ("application/x-rootwin-drop"));
 142
 143         _display.add_drop_targets (region_list_target_table);
 144         _display.signal_drag_data_received().connect (sigc::mem_fun(*this, &EditorRegions::drag_data_received));
 145
 146         _scroller.add (_display);
 147         _scroller.set_policy (POLICY_AUTOMATIC, POLICY_AUTOMATIC);
 148
 149         _display.signal_key_press_event().connect (sigc::mem_fun(*this, &EditorRegions::key_press));
 150         _display.signal_button_press_event().connect (sigc::mem_fun(*this, &EditorRegions::button_press), false);
 151         _change_connection = _display.get_selection()->signal_changed().connect (sigc::mem_fun(*this, &EditorRegions::selection_changed));
 152         // _display.signal_popup_menu().connect (sigc::bind (sigc::mem_fun (*this, &Editor::show__display_context_menu), 1, 0));
 153
 154         //ARDOUR_UI::instance()->secondary_clock.mode_changed.connect (sigc::mem_fun(*this, &Editor::redisplay_regions));
 155         ARDOUR_UI::instance()->secondary_clock.mode_changed.connect (sigc::mem_fun(*this, &EditorRegions::update_all_rows));
 156         ARDOUR::Region::RegionPropertyChanged.connect (region_property_connection, MISSING_INVALIDATOR, ui_bind (&EditorRegions::region_changed, this, _1, _2), gui_context());
 157         ARDOUR::RegionFactory::CheckNewRegion.connect (check_new_region_connection, MISSING_INVALIDATOR, ui_bind (&EditorRegions::add_region, this, _1), gui_context());
 158 }
 159
 160 void
 161 EditorRegions::set_session (ARDOUR::Session* s)
 162 {
 163         SessionHandlePtr::set_session (s);
 164         redisplay ();
 165 }
 166
 167 void
 168 EditorRegions::add_regions (vector<boost::shared_ptr<Region> >& regions)
 169 {
 170         for (vector<boost::shared_ptr<Region> >::iterator x = regions.begin(); x != regions.end(); ++x) {
 171                 add_region (*x);
 172         }
 173 }
 174
 175 void
 176 EditorRegions::add_region (boost::shared_ptr<Region> region)
 177 {
 178         if (!region || !_session) {
 179                 return;
 180         }
 181
 182         string str;
 183         TreeModel::Row row;
 184         Gdk::Color c;
 185         bool missing_source = boost::dynamic_pointer_cast<SilentFileSource>(region->source());
 186
 187         if (!_show_automatic_regions && region->automatic()) {
 188                 return;
 189         }
 190
 191         if (region->hidden()) {
 192                 TreeModel::iterator iter = _model->get_iter ("0");
 193                 TreeModel::Row parent;
 194                 TreeModel::Row child;
 195
 196                 if (!iter) {
 197                         parent = *(_model->append());
 198                         parent[_columns.name] = _("Hidden");
 199                         boost::shared_ptr<Region> proxy = parent[_columns.region];
 200                         proxy.reset ();
 201                 } else {
 202                         string s = (*iter)[_columns.name];
 203                         if (s != _("Hidden")) {
 204                                 parent = *(_model->insert(iter));
 205                                 parent[_columns.name] = _("Hidden");
 206                                 boost::shared_ptr<Region> proxy = parent[_columns.region];
 207                                 proxy.reset ();
 208                         } else {
 209                                 parent = *iter;
 210                         }
 211                 }
 212
 213                 row = *(_model->append (parent.children()));
 214
 215         } else if (region->whole_file()) {
 216
 217                 TreeModel::iterator i;
 218                 TreeModel::Children rows = _model->children();
 219
 220                 for (i = rows.begin(); i != rows.end(); ++i) {
 221                         boost::shared_ptr<Region> rr = (*i)[_columns.region];
 222
 223                         if (rr && region->region_list_equivalent (rr)) {
 224                                 return;
 225                         }
 226                 }
 227
 228                 row = *(_model->append());
 229
 230                 if (missing_source) {
 231                         c.set_rgb(65535,0,0);     // FIXME: error color from style
 232
 233                 } else if (region->automatic()){
 234                         c.set_rgb(0,65535,0);     // FIXME: error color from style
 235
 236                 } else {
 237                         set_color(c, rgba_from_style ("RegionListWholeFile", 0xff, 0, 0, 0, "fg", Gtk::STATE_NORMAL, false ));
 238
 239                 }
 240
 241                 row[_columns.color_] = c;
 242
 243                 if (region->source()->name()[0] == '/') { // external file
 244
 245                         if (region->whole_file()) {
 246
 247                                 boost::shared_ptr<AudioFileSource> afs = boost::dynamic_pointer_cast<AudioFileSource>(region->source());
 248                                 str = ".../";
 249
 250                                 if (afs) {
 251                                         str = region_name_from_path (afs->path(), region->n_channels() > 1);
 252                                 } else {
 253                                         str += region->source()->name();
 254                                 }
 255
 256                         } else {
 257                                 str = region->name();
 258                         }
 259
 260                 } else {
 261                         str = region->name();
 262                 }
 263
 264                 if (region->n_channels() > 1) {
 265                         std::stringstream foo;
 266                         foo << region->n_channels ();
 267                         str += " [";
 268                         str += foo.str();
 269                         str += "]";
 270                 }
 271
 272                 row[_columns.name] = str;
 273                 row[_columns.region] = region;
 274                 row[_columns.property_toggles_visible] = false;
 275
 276                 if (missing_source) {
 277                         row[_columns.path] = _("(MISSING) ") + region->source()->name();
 278
 279                 } else {
 280                         row[_columns.path] = region->source()->name();
 281
 282                 }
 283
 284                 if (region->automatic()) {
 285                         return;
 286                 }
 287
 288         } else {
 289
 290                 /* find parent node, add as new child */
 291
 292                 TreeModel::iterator i;
 293                 TreeModel::Children rows = _model->children();
 294                 bool found_parent = false;
 295
 296                 for (i = rows.begin(); i != rows.end(); ++i) {
 297                         boost::shared_ptr<Region> rr = (*i)[_columns.region];
 298                         boost::shared_ptr<AudioRegion> r = boost::dynamic_pointer_cast<AudioRegion>(rr);
 299
 300                         if (r && r->whole_file()) {
 301
 302                                 if (region->source_equivalent (r)) {
 303                                         row = *(_model->append ((*i).children()));
 304                                         found_parent = true;
 305                                         break;
 306                                 }
 307                         }
 308
 309                         TreeModel::iterator ii;
 310                         TreeModel::Children subrows = (*i).children();
 311
 312                         for (ii = subrows.begin(); ii != subrows.end(); ++ii) {
 313                                 boost::shared_ptr<Region> rrr = (*ii)[_columns.region];
 314
 315                                 if (region->region_list_equivalent (rrr)) {
 316                                         return;
 317
 318                                 }
 319                         }
 320                 }
 321
 322                 if (!found_parent) {
 323                         row = *(_model->append());
 324                 }
 325
 326                 row[_columns.property_toggles_visible] = true;
 327         }
 328
 329         row[_columns.region] = region;
 330
 331         populate_row(region, (*row));
 332 }
 333
 334 void
 335 EditorRegions::region_changed (boost::shared_ptr<Region> r, const PropertyChange& what_changed)
 336 {
 337         PropertyChange our_interests;
 338
 339         our_interests.add (ARDOUR::Properties::name);
 340         our_interests.add (ARDOUR::Properties::position);
 341         our_interests.add (ARDOUR::Properties::length);
 342         our_interests.add (ARDOUR::Properties::locked);
 343         our_interests.add (ARDOUR::Properties::position_lock_style);
 344         our_interests.add (ARDOUR::Properties::muted);
 345         our_interests.add (ARDOUR::Properties::opaque);
 346         our_interests.add (ARDOUR::Properties::fade_in);
 347         our_interests.add (ARDOUR::Properties::fade_out);
 348
 349         if (last_row != NULL){
 350
 351                 TreeModel::iterator j = _model->get_iter (last_row.get_path());
 352                 boost::shared_ptr<Region> c = (*j)[_columns.region];
 353
 354                 if (c == r) {
 355                         populate_row (r, (*j));
 356
 357                         if (what_changed.contains (ARDOUR::Properties::hidden)) {
 358                                 redisplay ();
 359                         }
 360
 361                         return;
 362                 }
 363         }
 364
 365
 366         if (what_changed.contains (our_interests)) {
 367
 368                 /* find the region in our model and update its row */
 369                 TreeModel::Children rows = _model->children ();
 370                 TreeModel::iterator i = rows.begin ();
 371
 372                 while (i != rows.end ()) {
 373
 374                         TreeModel::Children children = (*i)->children ();
 375                         TreeModel::iterator j = children.begin ();
 376
 377                         while (j != children.end()) {
 378
 379                                 boost::shared_ptr<Region> c = (*j)[_columns.region];
 380
 381                                 if (c == r) {
 382                                         last_row = TreeRowReference(_model, TreePath(j));
 383                                         break;
 384                                 }
 385                                 ++j;
 386                         }
 387
 388                         if (j != children.end()) {
 389
 390                                 boost::shared_ptr<AudioRegion> audioregion = boost::dynamic_pointer_cast<AudioRegion>(r);
 391                                 uint32_t used = _editor->get_regionview_count_from_region_list (r);
 392
 393                                 if (what_changed.contains (ARDOUR::Properties::name)) {
 394                                         populate_row_name (r, *j);
 395                                 }
 396                                 if (what_changed.contains (ARDOUR::Properties::position)) {
 397                                         populate_row_position (r, *j, used);
 398                                         populate_row_end (r, *j, used);
 399                                 }
 400                                 if (what_changed.contains (ARDOUR::Properties::length)) {
 401                                         populate_row_end (r, *j, used);
 402                                         populate_row_length (r, *j);
 403                                 }
 404                                 if (what_changed.contains (ARDOUR::Properties::locked)) {
 405                                         populate_row_locked (r, *j, used);
 406                                 }
 407                                 if (what_changed.contains (ARDOUR::Properties::position_lock_style)) {
 408                                         populate_row_glued (r, *j, used);
 409                                 }
 410                                 if (what_changed.contains (ARDOUR::Properties::muted)) {
 411                                         populate_row_muted (r, *j, used);
 412                                 }
 413                                 if (what_changed.contains (ARDOUR::Properties::opaque)) {
 414                                         populate_row_opaque (r, *j, used);
 415                                 }
 416                                 if (what_changed.contains (ARDOUR::Properties::fade_in)) {
 417                                         populate_row_fade_in (r, *j, used, audioregion);
 418                                 }
 419                                 if (what_changed.contains (ARDOUR::Properties::fade_out)) {
 420                                         populate_row_fade_out (r, *j, used, audioregion);
 421                                 }
 422
 423                                 break;
 424                         }
 425
 426                         ++i;
 427                 }
 428         }
 429
 430         if (what_changed.contains (ARDOUR::Properties::hidden)) {
 431                 redisplay ();
 432         }
 433 }
 434
 435 void
 436 EditorRegions::selection_changed ()
 437 {
 438         if (ignore_region_list_selection_change) {
 439                 return;
 440         }
 441
 442         /* We may have selected a region which is not displayed in the Editor.  If this happens, the
 443            result will be no selected regions in the editor's Selection.  Without the following line,
 444            this `no-selection' will be mapped back to our list, meaning that the selection will
 445            appear not to take.
 446         */
 447         _editor->_block_region_list_update_if_empty = true;
 448
 449         if (_display.get_selection()->count_selected_rows() > 0) {
 450
 451                 TreeIter iter;
 452                 TreeView::Selection::ListHandle_Path rows = _display.get_selection()->get_selected_rows ();
 453
 454                 _editor->get_selection().clear_regions ();
 455
 456                 for (TreeView::Selection::ListHandle_Path::iterator i = rows.begin(); i != rows.end(); ++i) {
 457
 458                         if (iter = _model->get_iter (*i)) {
 459                                 boost::shared_ptr<Region> region = (*iter)[_columns.region];
 460
 461                                 // they could have clicked on a row that is just a placeholder, like "Hidden"
 462                                 if (region) {
 463
 464                                         cerr << "Selected region has use count "
 465                                              << _session->playlists->region_use_count (region)
 466                                              << endl;
 467
 468                                         if (region->automatic()) {
 469
 470                                                 _display.get_selection()->unselect(*i);
 471
 472                                         } else {
 473                                                 _change_connection.block (true);
 474                                                 _editor->set_selected_regionview_from_region_list (region, Selection::Add);
 475
 476                                                 _change_connection.block (false);
 477                                         }
 478                                 }
 479                         }
 480                 }
 481         } else {
 482                 _editor->get_selection().clear_regions ();
 483         }
 484
 485         _editor->_block_region_list_update_if_empty = false;
 486 }
 487
 488 void
 489 EditorRegions::set_selected (RegionSelection& regions)
 490 {
 491         TreeModel::Children rows = _model->children();
 492
 493         for (RegionSelection::iterator iter = regions.begin(); iter != regions.end(); ++iter) {
 494
 495                 TreeModel::iterator i;
 496
 497                 boost::shared_ptr<Region> r ((*iter)->region());
 498
 499                 for (i = rows.begin(); i != rows.end(); ++i) {
 500
 501                         boost::shared_ptr<Region> compared_region = (*i)[_columns.region];
 502
 503                         if (r == compared_region) {
 504                                 _display.get_selection()->select(*i);
 505                                 break;
 506                         }
 507
 508                         if (!(*i).children().empty()) {
 509                                 if (set_selected_in_subrow(r, (*i), 2)) {
 510                                         break;
 511                                 }
 512                         }
 513                 }
 514         }
 515 }
 516
 517 bool
 518 EditorRegions::set_selected_in_subrow (boost::shared_ptr<Region> region, TreeModel::Row const &parent_row, int level)
 519 {
 520         TreeModel::iterator i;
 521         TreeModel::Children subrows = (*parent_row).children();
 522
 523         for (i = subrows.begin(); i != subrows.end(); ++i) {
 524
 525                 boost::shared_ptr<Region> compared_region = (*i)[_columns.region];
 526
 527                 if (region == compared_region) {
 528                         _display.get_selection()->select(*i);
 529                         return true;
 530                 }
 531
 532                 if (!(*i).children().empty()) {
 533                         if (set_selected_in_subrow (region, (*i), level + 1)) {
 534                                 return true;
 535                         }
 536                 }
 537         }
 538
 539         return false;
 540 }
 541
 542 void
 543 EditorRegions::insert_into_tmp_regionlist(boost::shared_ptr<Region> region)
 544 {
 545         /* keep all whole files at the beginning */
 546
 547         if (region->whole_file()) {
 548                 tmp_region_list.push_front (region);
 549         } else {
 550                 tmp_region_list.push_back (region);
 551         }
 552 }
 553
 554 void
 555 EditorRegions::redisplay ()
 556 {
 557         if (_no_redisplay || !_session) {
 558                 return;
 559         }
 560
 561         bool tree_expanded = false;
 562
 563         /* If the list was expanded prior to rebuilding, expand it again afterwards */
 564         if (toggle_full_action()->get_active()) {
 565                 tree_expanded = true;
 566         }
 567
 568         _display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 569         _model->clear ();
 570
 571         /* now add everything we have, via a temporary list used to help with sorting */
 572
 573         tmp_region_list.clear();
 574
 575         const RegionFactory::RegionMap& regions (RegionFactory::regions());
 576         for (RegionFactory::RegionMap::const_iterator i = regions.begin(); i != regions.end(); ++i) {
 577                 insert_into_tmp_regionlist (i->second);
 578         }
 579
 580         for (list<boost::shared_ptr<Region> >::iterator r = tmp_region_list.begin(); r != tmp_region_list.end(); ++r) {
 581                 add_region (*r);
 582         }
 583         tmp_region_list.clear();
 584
 585         _display.set_model (_model);
 586
 587         if (tree_expanded) {
 588                 _display.expand_all();
 589         }
 590 }
 591
 592 void
 593 EditorRegions::update_row (boost::shared_ptr<Region> region)
 594 {
 595         if (!region || !_session) {
 596                 return;
 597         }
 598
 599         TreeModel::iterator i;
 600         TreeModel::Children rows = _model->children();
 601
 602         return;
 603
 604         for (i = rows.begin(); i != rows.end(); ++i) {
 605
 606 //              cerr << "Level 1: Compare " << region->name() << " with parent " << (*i)[_columns.name] << "\n";
 607
 608                 boost::shared_ptr<Region> compared_region = (*i)[_columns.region];
 609
 610                 if (region == compared_region) {
 611 //                      cerr << "Matched\n";
 612                         populate_row(region, (*i));
 613                         return;
 614                 }
 615
 616                 if (!(*i).children().empty()) {
 617                         if (update_subrows(region, (*i), 2)) {
 618                                 return;
 619                         }
 620                 }
 621         }
 622
 623 //      cerr << "Returning - No match\n";
 624 }
 625
 626 bool
 627 EditorRegions::update_subrows (boost::shared_ptr<Region> region, TreeModel::Row const &parent_row, int level)
 628 {
 629         TreeModel::iterator i;
 630         TreeModel::Children subrows = (*parent_row).children();
 631
 632         for (i = subrows.begin(); i != subrows.end(); ++i) {
 633
 634 //              cerr << "Level " << level << ": Compare " << region->name() << " with child " << (*i)[_columns.name] << "\n";
 635
 636                 boost::shared_ptr<Region> compared_region = (*i)[_columns.region];
 637
 638                 if (region == compared_region) {
 639                         populate_row(region, (*i));
 640 //                      cerr << "Matched\n";
 641                         return true;
 642                 }
 643
 644                 if (!(*i).children().empty()) {
 645                         if (update_subrows (region, (*i), level + 1)) {
 646                                 return true;
 647                         }
 648                 }
 649         }
 650
 651         return false;
 652 }
 653
 654 void
 655 EditorRegions::update_all_rows ()
 656 {
 657         if (!_session) {
 658                 return;
 659         }
 660
 661         TreeModel::iterator i;
 662         TreeModel::Children rows = _model->children();
 663
 664         for (i = rows.begin(); i != rows.end(); ++i) {
 665
 666                 boost::shared_ptr<Region> region = (*i)[_columns.region];
 667
 668                 if (!region->automatic()) {
 669                         populate_row(region, (*i));
 670                 }
 671
 672                 if (!(*i).children().empty()) {
 673                         update_all_subrows ((*i), 2);
 674                 }
 675         }
 676 }
 677
 678 void
 679 EditorRegions::update_all_subrows (TreeModel::Row const &parent_row, int level)
 680 {
 681         TreeModel::iterator i;
 682         TreeModel::Children subrows = (*parent_row).children();
 683
 684         for (i = subrows.begin(); i != subrows.end(); ++i) {
 685
 686                 boost::shared_ptr<Region> region = (*i)[_columns.region];
 687
 688                 if (!region->automatic()) {
 689                         populate_row(region, (*i));
 690                 }
 691
 692                 if (!(*i).children().empty()) {
 693                         update_all_subrows ((*i), level + 1);
 694                 }
 695         }
 696 }
 697
 698 void
 699 EditorRegions::format_position (framepos_t pos, char* buf, size_t bufsize)
 700 {
 701         BBT_Time bbt;
 702         Timecode::Time timecode;
 703
 704         switch (ARDOUR_UI::instance()->secondary_clock.mode ()) {
 705         case AudioClock::BBT:
 706                 _session->tempo_map().bbt_time (pos, bbt);
 707                 snprintf (buf, bufsize, "%03d|%02d|%04d" , bbt.bars, bbt.beats, bbt.ticks);
 708                 break;
 709
 710         case AudioClock::MinSec:
 711                 framepos_t left;
 712                 int hrs;
 713                 int mins;
 714                 float secs;
 715
 716                 left = pos;
 717                 hrs = (int) floor (left / (_session->frame_rate() * 60.0f * 60.0f));
 718                 left -= (nframes_t) floor (hrs * _session->frame_rate() * 60.0f * 60.0f);
 719                 mins = (int) floor (left / (_session->frame_rate() * 60.0f));
 720                 left -= (nframes_t) floor (mins * _session->frame_rate() * 60.0f);
 721                 secs = left / (float) _session->frame_rate();
 722                 snprintf (buf, bufsize, "%02d:%02d:%06.3f", hrs, mins, secs);
 723                 break;
 724
 725         case AudioClock::Frames:
 726                 snprintf (buf, bufsize, "%" PRId64, pos);
 727                 break;
 728
 729         case AudioClock::Timecode:
 730         case AudioClock::Off: /* If the secondary clock is off, default to Timecode */
 731         default:
 732                 _session->timecode_time (pos, timecode);
 733                 snprintf (buf, bufsize, "%02d:%02d:%02d:%02d", timecode.hours, timecode.minutes, timecode.seconds, timecode.frames);
 734                 break;
 735         }
 736 }
 737
 738 void
 739 EditorRegions::populate_row (boost::shared_ptr<Region> region, TreeModel::Row const &row)
 740 {
 741         boost::shared_ptr<AudioRegion> audioregion = boost::dynamic_pointer_cast<AudioRegion>(region);
 742         uint32_t used = _session->playlists->region_use_count (region);
 743
 744         populate_row_position (region, row, used);
 745         populate_row_end (region, row, used);
 746         populate_row_sync (region, row, used);
 747         populate_row_fade_in (region, row, used, audioregion);
 748         populate_row_fade_out (region, row, used, audioregion);
 749         populate_row_locked (region, row, used);
 750         populate_row_glued (region, row, used);
 751         populate_row_muted (region, row, used);
 752         populate_row_opaque (region, row, used);
 753         populate_row_length (region, row);
 754         populate_row_source (region, row);
 755         populate_row_name (region, row);
 756         populate_row_used (region, row, used);
 757 }
 758
 759 #if 0
 760         if (audioRegion && fades_in_seconds) {
 761
 762                 nframes_t left;
 763                 int mins;
 764                 int millisecs;
 765
 766                 left = audioRegion->fade_in()->back()->when;
 767                 mins = (int) floor (left / (_session->frame_rate() * 60.0f));
 768                 left -= (nframes_t) floor (mins * _session->frame_rate() * 60.0f);
 769                 millisecs = (int) floor ((left * 1000.0f) / _session->frame_rate());
 770
 771                 if (audioRegion->fade_in()->back()->when >= _session->frame_rate()) {
 772                         sprintf (fadein_str, "%01dM %01dmS", mins, millisecs);
 773                 } else {
 774                         sprintf (fadein_str, "%01dmS", millisecs);
 775                 }
 776
 777                 left = audioRegion->fade_out()->back()->when;
 778                 mins = (int) floor (left / (_session->frame_rate() * 60.0f));
 779                 left -= (nframes_t) floor (mins * _session->frame_rate() * 60.0f);
 780                 millisecs = (int) floor ((left * 1000.0f) / _session->frame_rate());
 781
 782                 if (audioRegion->fade_out()->back()->when >= _session->frame_rate()) {
 783                         sprintf (fadeout_str, "%01dM %01dmS", mins, millisecs);
 784                 } else {
 785                         sprintf (fadeout_str, "%01dmS", millisecs);
 786                 }
 787         }
 788 #endif
 789
 790 void
 791 EditorRegions::populate_row_used (boost::shared_ptr<Region> region, TreeModel::Row const& row, uint32_t used)
 792 {
 793         char buf[8];
 794         snprintf (buf, sizeof (buf), "%4d" , used);
 795         row[_columns.used] = buf;
 796 }
 797
 798 void
 799 EditorRegions::populate_row_length (boost::shared_ptr<Region> region, TreeModel::Row const &row)
 800 {
 801         char buf[16];
 802         format_position (region->length(), buf, sizeof (buf));
 803         row[_columns.length] = buf;
 804 }
 805
 806 void
 807 EditorRegions::populate_row_end (boost::shared_ptr<Region> region, TreeModel::Row const &row, uint32_t used)
 808 {
 809         if (used > 1) {
 810                 row[_columns.end] = _("Multiple");
 811         } else {
 812                 char buf[16];
 813                 format_position (region->last_frame(), buf, sizeof (buf));
 814                 row[_columns.end] = buf;
 815         }
 816 }
 817
 818 void
 819 EditorRegions::populate_row_position (boost::shared_ptr<Region> region, TreeModel::Row const &row, uint32_t used)
 820 {
 821         if (used > 1) {
 822                 row[_columns.position] = _("Multiple");
 823         } else {
 824                 char buf[16];
 825                 format_position (region->position(), buf, sizeof (buf));
 826                 row[_columns.position] = buf;
 827         }
 828 }
 829
 830 void
 831 EditorRegions::populate_row_sync (boost::shared_ptr<Region> region, TreeModel::Row const &row, uint32_t used)
 832 {
 833         if (used > 1) {
 834                 row[_columns.sync] = _("Multiple");
 835         } else {
 836                 if (region->sync_position() == region->position()) {
 837                         row[_columns.sync] = _("Start");
 838                 } else if (region->sync_position() == (region->last_frame())) {
 839                         row[_columns.sync] = _("End");
 840                 } else {
 841                         char buf[16];
 842                         format_position (region->sync_position(), buf, sizeof (buf));
 843                         row[_columns.sync] = buf;
 844                 }
 845         }
 846 }
 847
 848 void
 849 EditorRegions::populate_row_fade_in (boost::shared_ptr<Region> region, TreeModel::Row const &row, uint32_t used, boost::shared_ptr<AudioRegion> audioregion)
 850 {
 851         if (!audioregion) {
 852                         row[_columns.fadein] = "";
 853         } else {
 854                 if (used > 1) {
 855                         row[_columns.fadein] = _("Multiple");
 856                 } else {
 857
 858                         char buf[16];
 859                         format_position (audioregion->fade_in()->back()->when, buf, sizeof (buf));
 860                         row[_columns.fadein] = buf;
 861
 862                         if (audioregion->fade_in_active()) {
 863                                 row[_columns.fadein] = string_compose("%1%2%3", " ", buf, " ");
 864                         } else {
 865                                 row[_columns.fadein] = string_compose("%1%2%3", "(", buf, ")");
 866                         }
 867                 }
 868         }
 869 }
 870
 871 void
 872 EditorRegions::populate_row_fade_out (boost::shared_ptr<Region> region, TreeModel::Row const &row, uint32_t used, boost::shared_ptr<AudioRegion> audioregion)
 873 {
 874         if (!audioregion) {
 875                 row[_columns.fadeout] = "";
 876         } else {
 877                 if (used > 1) {
 878                         row[_columns.fadeout] = _("Multiple");
 879                 } else {
 880                         char buf[16];
 881                         format_position (audioregion->fade_out()->back()->when, buf, sizeof (buf));
 882
 883                         if (audioregion->fade_out_active()) {
 884                                 row[_columns.fadeout] = string_compose("%1%2%3", " ", buf, " ");
 885                         } else {
 886                                 row[_columns.fadeout] = string_compose("%1%2%3", "(", buf, ")");
 887                         }
 888                 }
 889         }
 890 }
 891
 892 void
 893 EditorRegions::populate_row_locked (boost::shared_ptr<Region> region, TreeModel::Row const &row, uint32_t used)
 894 {
 895         if (used > 1) {
 896                 row[_columns.locked] = false;
 897         } else {
 898                 row[_columns.locked] = region->locked();
 899         }
 900 }
 901
 902 void
 903 EditorRegions::populate_row_glued (boost::shared_ptr<Region> region, TreeModel::Row const &row, uint32_t used)
 904 {
 905         if (used > 1) {
 906                 row[_columns.glued] = false;
 907         } else {
 908                 if (region->position_lock_style() == MusicTime) {
 909                         row[_columns.glued] = true;
 910                 } else {
 911                         row[_columns.glued] = false;
 912                 }
 913         }
 914 }
 915
 916 void
 917 EditorRegions::populate_row_muted (boost::shared_ptr<Region> region, TreeModel::Row const &row, uint32_t used)
 918 {
 919         if (used > 1) {
 920                 row[_columns.muted] = false;
 921         } else {
 922                 row[_columns.muted] = region->muted();
 923         }
 924 }
 925
 926 void
 927 EditorRegions::populate_row_opaque (boost::shared_ptr<Region> region, TreeModel::Row const &row, uint32_t used)
 928 {
 929         if (used > 1) {
 930                 row[_columns.opaque] = false;
 931         } else {
 932                 row[_columns.opaque] = region->opaque();
 933         }
 934 }
 935
 936 void
 937 EditorRegions::populate_row_name (boost::shared_ptr<Region> region, TreeModel::Row const &row)
 938 {
 939         if (region->n_channels() > 1) {
 940                 row[_columns.name] = string_compose("%1  [%2]", region->name(), region->n_channels());
 941         } else {
 942                 row[_columns.name] = region->name();
 943         }
 944 }
 945
 946 void
 947 EditorRegions::populate_row_source (boost::shared_ptr<Region> region, TreeModel::Row const &row)
 948 {
 949         if (boost::dynamic_pointer_cast<SilentFileSource>(region->source())) {
 950                 row[_columns.path] = _("MISSING ") + region->source()->name();
 951         } else {
 952                 row[_columns.path] = region->source()->name();
 953         }
 954 }
 955
 956 void
 957 EditorRegions::toggle_show_auto_regions ()
 958 {
 959         _show_automatic_regions = toggle_show_auto_regions_action()->get_active();
 960         redisplay ();
 961 }
 962
 963 void
 964 EditorRegions::toggle_full ()
 965 {
 966         set_full (toggle_full_action()->get_active ());
 967 }
 968
 969 void
 970 EditorRegions::set_full (bool f)
 971 {
 972         if (f) {
 973                 _display.expand_all ();
 974                 expanded = true;
 975         } else {
 976                 _display.collapse_all ();
 977                 expanded = false;
 978         }
 979 }
 980
 981 void
 982 EditorRegions::show_context_menu (int button, int time)
 983 {
 984         if (_menu == 0) {
 985                 _menu = dynamic_cast<Menu*> (ActionManager::get_widget ("/RegionListMenu"));
 986         }
 987
 988         if (_display.get_selection()->count_selected_rows() > 0) {
 989                 ActionManager::set_sensitive (ActionManager::region_list_selection_sensitive_actions, true);
 990         } else {
 991                 ActionManager::set_sensitive (ActionManager::region_list_selection_sensitive_actions, false);
 992         }
 993
 994         /* Enable the "Show" option if any selected regions are hidden, and vice versa for "Hide" */
 995
 996         bool have_shown = false;
 997         bool have_hidden = false;
 998
 999         TreeView::Selection::ListHandle_Path rows = _display.get_selection()->get_selected_rows ();
1000         for (TreeView::Selection::ListHandle_Path::iterator i = rows.begin(); i != rows.end(); ++i) {
1001                 TreeIter t = _model->get_iter (*i);
1002                 boost::shared_ptr<Region> r = (*t)[_columns.region];
1003                 if (r) {
1004                         if (r->hidden ()) {
1005                                 have_hidden = true;
1006                         } else {
1007                                 have_shown = true;
1008                         }
1009                 }
1010         }
1011
1012         hide_action()->set_sensitive (have_shown);
1013         show_action()->set_sensitive (have_hidden);
1014
1015         _menu->popup (button, time);
1016 }
1017
1018 bool
1019 EditorRegions::key_press (GdkEventKey* /*ev*/)
1020 {
1021         return false;
1022 }
1023
1024
1025 bool
1026 EditorRegions::button_press (GdkEventButton *ev)
1027 {
1028         boost::shared_ptr<Region> region;
1029         TreeIter iter;
1030         TreeModel::Path path;
1031         TreeViewColumn* column;
1032         int cellx;
1033         int celly;
1034
1035         if (_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
1036                 if ((iter = _model->get_iter (path))) {
1037                         region = (*iter)[_columns.region];
1038                 }
1039         }
1040
1041         if (Keyboard::is_context_menu_event (ev)) {
1042                 show_context_menu (ev->button, ev->time);
1043                 return false;
1044         }
1045
1046         if (region != 0 && Keyboard::is_button2_event (ev)) {
1047                 // start/stop audition
1048                 if (!Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
1049                         _editor->consider_auditioning (region);
1050                 }
1051                 return true;
1052         }
1053
1054         return false;
1055 }
1056
1057 int
1058 EditorRegions::sorter (TreeModel::iterator a, TreeModel::iterator b)
1059 {
1060         int cmp = 0;
1061
1062         boost::shared_ptr<Region> r1 = (*a)[_columns.region];
1063         boost::shared_ptr<Region> r2 = (*b)[_columns.region];
1064
1065         /* handle rows without regions, like "Hidden" */
1066
1067         if (r1 == 0) {
1068                 return -1;
1069         }
1070
1071         if (r2 == 0) {
1072                 return 1;
1073         }
1074
1075         boost::shared_ptr<AudioRegion> region1 = boost::dynamic_pointer_cast<AudioRegion> (r1);
1076         boost::shared_ptr<AudioRegion> region2 = boost::dynamic_pointer_cast<AudioRegion> (r2);
1077
1078         if (region1 == 0 || region2 == 0) {
1079                 std::string s1;
1080                 std::string s2;
1081                 switch (_sort_type) {
1082                 case ByName:
1083                         s1 = (*a)[_columns.name];
1084                         s2 = (*b)[_columns.name];
1085                         return (s1.compare (s2));
1086                 default:
1087                         return 0;
1088                 }
1089         }
1090
1091         switch (_sort_type) {
1092         case ByName:
1093                 cmp = strcasecmp (region1->name().c_str(), region2->name().c_str());
1094                 break;
1095
1096         case ByLength:
1097                 cmp = region1->length() - region2->length();
1098                 break;
1099
1100         case ByPosition:
1101                 cmp = region1->position() - region2->position();
1102                 break;
1103
1104         case ByTimestamp:
1105                 cmp = region1->source()->timestamp() - region2->source()->timestamp();
1106                 break;
1107
1108         case ByStartInFile:
1109                 cmp = region1->start() - region2->start();
1110                 break;
1111
1112         case ByEndInFile:
1113                 // cerr << "Compare " << (region1->start() + region1->length()) << " and " << (region2->start() + region2->length()) << endl;
1114                 cmp = (region1->start() + region1->length()) - (region2->start() + region2->length());
1115                 break;
1116
1117         case BySourceFileName:
1118                 cmp = strcasecmp (region1->source()->name().c_str(), region2->source()->name().c_str());
1119                 break;
1120
1121         case BySourceFileLength:
1122                 cmp = region1->source_length(0) - region2->source_length(0);
1123                 break;
1124
1125         case BySourceFileCreationDate:
1126                 cmp = region1->source()->timestamp() - region2->source()->timestamp();
1127                 break;
1128
1129         case BySourceFileFS:
1130                 if (region1->source()->name() == region2->source()->name()) {
1131                         cmp = strcasecmp (region1->name().c_str(),  region2->name().c_str());
1132                 } else {
1133                         cmp = strcasecmp (region1->source()->name().c_str(),  region2->source()->name().c_str());
1134                 }
1135                 break;
1136         }
1137
1138         // cerr << "Comparison on " << enum_2_string (_sort_type) << " gives " << cmp << endl;
1139
1140         if (cmp < 0) {
1141                 return -1;
1142         } else if (cmp > 0) {
1143                 return 1;
1144         } else {
1145                 return 0;
1146         }
1147 }
1148
1149 void
1150 EditorRegions::reset_sort_type (RegionListSortType type, bool force)
1151 {
1152         if (type != _sort_type || force) {
1153                 _sort_type = type;
1154                 _model->set_sort_func (0, (sigc::mem_fun (*this, &EditorRegions::sorter)));
1155         }
1156 }
1157
1158 void
1159 EditorRegions::reset_sort_direction (bool up)
1160 {
1161         _model->set_sort_column (0, up ? SORT_ASCENDING : SORT_DESCENDING);
1162 }
1163
1164 void
1165 EditorRegions::selection_mapover (sigc::slot<void,boost::shared_ptr<Region> > sl)
1166 {
1167         Glib::RefPtr<TreeSelection> selection = _display.get_selection();
1168         TreeView::Selection::ListHandle_Path rows = selection->get_selected_rows ();
1169         TreeView::Selection::ListHandle_Path::iterator i = rows.begin();
1170
1171         if (selection->count_selected_rows() == 0 || _session == 0) {
1172                 return;
1173         }
1174
1175         for (; i != rows.end(); ++i) {
1176                 TreeIter iter;
1177
1178                 if ((iter = _model->get_iter (*i))) {
1179
1180                         /* some rows don't have a region associated with them, but can still be
1181                            selected (XXX maybe prevent them from being selected)
1182                         */
1183
1184                         boost::shared_ptr<Region> r = (*iter)[_columns.region];
1185
1186                         if (r) {
1187                                 sl (r);
1188                         }
1189                 }
1190         }
1191 }
1192
1193
1194 void
1195 EditorRegions::drag_data_received (const RefPtr<Gdk::DragContext>& context,
1196                                    int x, int y,
1197                                    const SelectionData& data,
1198                                    guint info, guint time)
1199 {
1200         vector<string> paths;
1201
1202         if (data.get_target() == "GTK_TREE_MODEL_ROW") {
1203                 /* something is being dragged over the region list */
1204                 _editor->_drags->abort ();
1205                 _display.on_drag_data_received (context, x, y, data, info, time);
1206                 return;
1207         }
1208
1209         if (_editor->convert_drop_to_paths (paths, context, x, y, data, info, time) == 0) {
1210                 framepos_t pos = 0;
1211                 if (Profile->get_sae() || Config->get_only_copy_imported_files()) {
1212                         _editor->do_import (paths, Editing::ImportDistinctFiles, Editing::ImportAsRegion, SrcBest, pos);
1213                 } else {
1214                         _editor->do_embed (paths, Editing::ImportDistinctFiles, ImportAsRegion, pos);
1215                 }
1216                 context->drag_finish (true, false, time);
1217         }
1218 }
1219
1220 bool
1221 EditorRegions::selection_filter (const RefPtr<TreeModel>& model, const TreeModel::Path& path, bool /*yn*/)
1222 {
1223         /* not possible to select rows that do not represent regions, like "Hidden" */
1224
1225         TreeModel::iterator iter = model->get_iter (path);
1226
1227         if (iter) {
1228                 boost::shared_ptr<Region> r =(*iter)[_columns.region];
1229                 if (!r) {
1230                         return false;
1231                 }
1232         }
1233
1234         return true;
1235 }
1236
1237 void
1238 EditorRegions::name_edit (const std::string& path, const std::string& new_text)
1239 {
1240         boost::shared_ptr<Region> region;
1241         TreeIter iter;
1242
1243         if ((iter = _model->get_iter (path))) {
1244                 region = (*iter)[_columns.region];
1245                 (*iter)[_columns.name] = new_text;
1246         }
1247
1248         /* now mapover everything */
1249
1250         if (region) {
1251                 vector<RegionView*> equivalents;
1252                 _editor->get_regions_corresponding_to (region, equivalents);
1253
1254                 for (vector<RegionView*>::iterator i = equivalents.begin(); i != equivalents.end(); ++i) {
1255                         if (new_text != (*i)->region()->name()) {
1256                                 (*i)->region()->set_name (new_text);
1257                         }
1258                 }
1259         }
1260
1261 }
1262
1263 /** @return Region that has been dragged out of the list, or 0 */
1264 boost::shared_ptr<Region>
1265 EditorRegions::get_dragged_region ()
1266 {
1267         list<boost::shared_ptr<Region> > regions;
1268         TreeView* source;
1269         _display.get_object_drag_data (regions, &source);
1270
1271         if (regions.empty()) {
1272                 return boost::shared_ptr<Region> ();
1273         }
1274
1275         assert (regions.size() == 1);
1276         return regions.front ();
1277 }
1278
1279 void
1280 EditorRegions::clear ()
1281 {
1282         _display.set_model (Glib::RefPtr<Gtk::TreeStore> (0));
1283         _model->clear ();
1284         _display.set_model (_model);
1285 }
1286
1287 boost::shared_ptr<Region>
1288 EditorRegions::get_single_selection ()
1289 {
1290         Glib::RefPtr<TreeSelection> selected = _display.get_selection();
1291
1292         if (selected->count_selected_rows() != 1) {
1293                 return boost::shared_ptr<Region> ();
1294         }
1295
1296         TreeView::Selection::ListHandle_Path rows = selected->get_selected_rows ();
1297
1298         /* only one row selected, so rows.begin() is it */
1299
1300         TreeIter iter = _model->get_iter (*rows.begin());
1301
1302         if (!iter) {
1303                 return boost::shared_ptr<Region> ();
1304         }
1305
1306         return (*iter)[_columns.region];
1307 }
1308
1309 void
1310 EditorRegions::locked_changed (std::string const & path)
1311 {
1312         TreeIter i = _model->get_iter (path);
1313         if (i) {
1314                 boost::shared_ptr<ARDOUR::Region> region = (*i)[_columns.region];
1315                 if (region) {
1316                         region->set_locked (!(*i)[_columns.locked]);
1317                 }
1318         }
1319 }
1320
1321 void
1322 EditorRegions::glued_changed (std::string const & path)
1323 {
1324         TreeIter i = _model->get_iter (path);
1325         if (i) {
1326                 boost::shared_ptr<ARDOUR::Region> region = (*i)[_columns.region];
1327                 if (region) {
1328                         /* `glued' means MusicTime, and we're toggling here */
1329                         region->set_position_lock_style ((*i)[_columns.glued] ? AudioTime : MusicTime);
1330                 }
1331         }
1332
1333 }
1334
1335 void
1336 EditorRegions::muted_changed (std::string const & path)
1337 {
1338         TreeIter i = _model->get_iter (path);
1339         if (i) {
1340                 boost::shared_ptr<ARDOUR::Region> region = (*i)[_columns.region];
1341                 if (region) {
1342                         region->set_muted (!(*i)[_columns.muted]);
1343                 }
1344         }
1345
1346 }
1347
1348 void
1349 EditorRegions::opaque_changed (std::string const & path)
1350 {
1351         TreeIter i = _model->get_iter (path);
1352         if (i) {
1353                 boost::shared_ptr<ARDOUR::Region> region = (*i)[_columns.region];
1354                 if (region) {
1355                         region->set_opaque (!(*i)[_columns.opaque]);
1356                 }
1357         }
1358
1359 }
1360
1361 XMLNode &
1362 EditorRegions::get_state () const
1363 {
1364         XMLNode* node = new XMLNode (X_("RegionList"));
1365
1366         node->add_property (X_("sort-type"), enum_2_string (_sort_type));
1367
1368         RefPtr<Action> act = ActionManager::get_action (X_("RegionList"), X_("SortAscending"));
1369         bool const ascending = RefPtr<RadioAction>::cast_dynamic(act)->get_active ();
1370         node->add_property (X_("sort-ascending"), ascending ? "yes" : "no");
1371         node->add_property (X_("show-all"), toggle_full_action()->get_active() ? "yes" : "no");
1372         node->add_property (X_("show-automatic-regions"), _show_automatic_regions ? "yes" : "no");
1373
1374         return *node;
1375 }
1376
1377 void
1378 EditorRegions::set_state (const XMLNode & node)
1379 {
1380         bool changed = false;
1381
1382         if (node.name() != X_("RegionList")) {
1383                 return;
1384         }
1385
1386         XMLProperty const * p = node.property (X_("sort-type"));
1387         if (p) {
1388                 Editing::RegionListSortType const t = static_cast<Editing::RegionListSortType> (string_2_enum (p->value(), _sort_type));
1389                 if (_sort_type != t) {
1390                         changed = true;
1391                 }
1392                 reset_sort_type (t, true);
1393                 RefPtr<RadioAction> ract = sort_type_action (t);
1394                 ract->set_active ();
1395         }
1396
1397         p = node.property (X_("sort-ascending"));
1398         if (p) {
1399                 bool const yn = string_is_affirmative (p->value ());
1400                 SortType old_sort_type;
1401                 int old_sort_column;
1402
1403                 _model->get_sort_column_id (old_sort_column, old_sort_type);
1404                 if (old_sort_type != (yn ? SORT_ASCENDING : SORT_DESCENDING)) {
1405                         changed = true;
1406                 }
1407                 reset_sort_direction (yn);
1408                 RefPtr<Action> act;
1409                 if (yn) {
1410                         act = ActionManager::get_action (X_("RegionList"), X_("SortAscending"));
1411                 } else {
1412                         act = ActionManager::get_action (X_("RegionList"), X_("SortDescending"));
1413                 }
1414
1415                 RefPtr<RadioAction>::cast_dynamic(act)->set_active ();
1416         }
1417
1418         p = node.property (X_("show-all"));
1419         if (p) {
1420                 bool const yn = string_is_affirmative (p->value ());
1421                 if (expanded != yn) {
1422                         changed = true;
1423                 }
1424                 set_full (yn);
1425                 toggle_full_action()->set_active (yn);
1426         }
1427
1428         p = node.property (X_("show-automatic-regions"));
1429         if (p) {
1430                 bool const yn = string_is_affirmative (p->value ());
1431                 if (yn != _show_automatic_regions) {
1432                         _show_automatic_regions = yn;
1433                         toggle_show_auto_regions_action()->set_active (yn);
1434                         /* no need to set changed because the above toggle
1435                            will have triggered a redisplay
1436                         */
1437                 }
1438         }
1439
1440         if (changed) {
1441                 redisplay ();
1442         }
1443 }
1444
1445 RefPtr<RadioAction>
1446 EditorRegions::sort_type_action (Editing::RegionListSortType t) const
1447 {
1448         const char* action = 0;
1449
1450         switch (t) {
1451         case Editing::ByName:
1452                 action = X_("SortByRegionName");
1453                 break;
1454         case Editing::ByLength:
1455                 action = X_("SortByRegionLength");
1456                 break;
1457         case Editing::ByPosition:
1458                 action = X_("SortByRegionPosition");
1459                 break;
1460         case Editing::ByTimestamp:
1461                 action = X_("SortByRegionTimestamp");
1462                 break;
1463         case Editing::ByStartInFile:
1464                 action = X_("SortByRegionStartinFile");
1465                 break;
1466         case Editing::ByEndInFile:
1467                 action = X_("SortByRegionEndinFile");
1468                 break;
1469         case Editing::BySourceFileName:
1470                 action = X_("SortBySourceFileName");
1471                 break;
1472         case Editing::BySourceFileLength:
1473                 action = X_("SortBySourceFileLength");
1474                 break;
1475         case Editing::BySourceFileCreationDate:
1476                 action = X_("SortBySourceFileCreationDate");
1477                 break;
1478         case Editing::BySourceFileFS:
1479                 action = X_("SortBySourceFilesystem");
1480                 break;
1481         default:
1482                 fatal << string_compose (_("programming error: %1: %2"), "EditorRegions: impossible sort type", (int) t) << endmsg;
1483                 /*NOTREACHED*/
1484         }
1485
1486         RefPtr<Action> act = ActionManager::get_action (X_("RegionList"), action);
1487         assert (act);
1488
1489         return RefPtr<RadioAction>::cast_dynamic (act);
1490 }
1491
1492 RefPtr<Action>
1493 EditorRegions::hide_action () const
1494 {
1495         return ActionManager::get_action (X_("RegionList"), X_("rlHide"));
1496
1497 }
1498
1499 RefPtr<Action>
1500 EditorRegions::show_action () const
1501 {
1502         return ActionManager::get_action (X_("RegionList"), X_("rlShow"));
1503 }
1504
1505 RefPtr<ToggleAction>
1506 EditorRegions::toggle_full_action () const
1507 {
1508         Glib::RefPtr<Action> act = ActionManager::get_action (X_("RegionList"), X_("rlShowAll"));
1509         assert (act);
1510         return Glib::RefPtr<ToggleAction>::cast_dynamic (act);
1511 }
1512
1513 RefPtr<ToggleAction>
1514 EditorRegions::toggle_show_auto_regions_action () const
1515 {
1516         Glib::RefPtr<Action> act = ActionManager::get_action (X_("RegionList"), X_("rlShowAuto"));
1517         assert (act);
1518         return Glib::RefPtr<ToggleAction>::cast_dynamic (act);
1519 }